start-ver=1.4
cd-journal=joma
no-vol=42
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=9
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2008
dt-pub=200801
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Structural Analysis of Minimum Weight Codewords of the (32, 21, 6) and (64, 45, 8) Extended BCH Codes Using Invariance Property
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Two typical examples, the (32, 21, 6) and (64, 45, 8) extended code of primitive permuted BCH codes, are considered. The sets of minimum weight codewords are analyzed in terms of Boolean polynomial representation. They are classied by using their split weight structure with respect to the left and right half trellis sections, and for each class, the standard form is presented. Based on the results, we can generate a proper list of the minimum weight codewords of the codes.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=AsataniJun
kn-aut-sei=Asatani
kn-aut-mei=Jun
aut-affil-num=1
ORCID=

en-aut-name=KoumotoTakuya
en-aut-sei=Koumoto
en-aut-mei=Takuya
kn-aut-name=甲本卓也
kn-aut-sei=甲本
kn-aut-mei=卓也
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=ToruFujiwara
kn-aut-sei=Toru
kn-aut-mei=Fujiwara
aut-affil-num=3
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=TadaoKasami
kn-aut-sei=Tadao
kn-aut-mei=Kasami
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Faculty of Engineering Okayama University of Science

affil-num=2
en-affil=
kn-affil=Graduate School of Natural Science and Technology, Okayama University

affil-num=3
en-affil=
kn-affil=Graduate School of Information Science and Technology, Osaka University

affil-num=4
en-affil=
kn-affil=Graduate School of Information Science Nara Institute of Science and Technology
en-keyword=Boolean polynomial representation
kn-keyword=Boolean polynomial representation
en-keyword=extended BCH codes
kn-keyword=extended BCH codes
en-keyword=minimum weight codewords
kn-keyword=minimum weight codewords
en-keyword=binary shift invariance property
kn-keyword=binary shift invariance property
END

start-ver=1.4
cd-journal=joma
no-vol=42
cd-vols=
no-issue=1
article-no=
start-page=10
end-page=17
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2008
dt-pub=200801
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Geometric BIC
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The author introduced the "geometric AIC" and the "geometric MDL" as model selection criteria for geometric fitting problems. These correspond to Akaike’s "AIC" and Rissanen's "BIC", respectively, well known in the statistical estimation framework. Another criterion well
known is Schwarz’ "BIC", but its counterpart for geometric fitting has been unknown. This paper introduces the corresponding criterion, which we call the "geometric BIC", and shows that it is of the same form as the geometric MDL. We present the underlying logical reasoning of Bayesian estimation.
en-copyright=
kn-copyright=

en-aut-name=KanataniKenichi
en-aut-sei=Kanatani
en-aut-mei=Kenichi
kn-aut-name=金谷健一
kn-aut-sei=金谷
kn-aut-mei=健一
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Computer Science, Okayama University
END

start-ver=1.4
cd-journal=joma
no-vol=42
cd-vols=
no-issue=1
article-no=
start-page=18
end-page=35
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2008
dt-pub=200801
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Fundamental Matrix Computation: Theory and Practice
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=We classify and review existing algorithms for computing the fundamental matrix from point correspondences and propose new effective schemes: 7-parameter Levenberg-Marquardt (LM) search, EFNS, and EFNS-based bundle adjustment. Doing experimental comparison, we show that EFNS and the 7-parameter LM search exhibit the best performance and that additional bundle adjustment does not increase the accuracy to any noticeable degree.
en-copyright=
kn-copyright=

en-aut-name=KanataniKenichi
en-aut-sei=Kanatani
en-aut-mei=Kenichi
kn-aut-name=金谷健一
kn-aut-sei=金谷
kn-aut-mei=健一
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=YasuyukiSugaya
kn-aut-sei=Yasuyuki
kn-aut-mei=Sugaya
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Computer Science, Okayama University

affil-num=2
en-affil=
kn-affil=Department of Information and Computer Sciences Toyohashi University of Technology
END

start-ver=1.4
cd-journal=joma
no-vol=42
cd-vols=
no-issue=1
article-no=
start-page=53
end-page=55
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2008
dt-pub=200801
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Transfer of Quantum Information by Spin Chains : Effect of Noise
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In order to transfer quantum information, the use of spin chains has been proposed and their transfer characteristics have been analyzed. As one of the latter, the maximum of the transfer probability over sufficiently long time period is often considered important and some examples with high maximum values have been given. In these examples, the coupling between neighboring spins are tuned so as to attain high efficiency. In this article, we discuss the effect of noise on the values of coupling constant. As a result, we propose a system where the efficiency is high and also the effect of noise is small.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=ChaiHong
kn-aut-sei=Chai
kn-aut-mei=Hong
aut-affil-num=1
ORCID=

en-aut-name=TotsujiHiroo
en-aut-sei=Totsuji
en-aut-mei=Hiroo
kn-aut-name=東辻浩夫
kn-aut-sei=東辻
kn-aut-mei=浩夫
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Graduate School of Natural Science and Technology and Faculty of Engineering, Okayama University

affil-num=2
en-affil=
kn-affil=Graduate School of Natural Science and Technology and Faculty of Engineering, Okayama University
END

start-ver=1.4
cd-journal=joma
no-vol=41
cd-vols=
no-issue=1
article-no=
start-page=63
end-page=72
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2007
dt-pub=200701
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Experimental Evaluation of Geometric Fitting Algorithms
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The convergence performance of typical numerical schemes for geometric fitting for computer vision applications is compared. First, the problem and the associated KCR lower bound are stated. Then, three well known fitting algorithms are described: FNS, HEIV, and renormalization.
To these, we add a special variant of Gauss-Newton iterations. For initialization of iterations, random choice, least squares, and Taubin’s method are tested. Numerical simulations and real image experiments and conducted for fundamental matrix computation and ellipse
fitting, which reveals different characteristics of each method.
en-copyright=
kn-copyright=

en-aut-name=KanataniKenichi
en-aut-sei=Kanatani
en-aut-mei=Kenichi
kn-aut-name=金谷健一
kn-aut-sei=金谷
kn-aut-mei=健一
aut-affil-num=1
ORCID=

en-aut-name=SugayaYasuyuki
en-aut-sei=Sugaya
en-aut-mei=Yasuyuki
kn-aut-name=菅谷保之
kn-aut-sei=菅谷
kn-aut-mei=保之
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Computer Science, Okayama University

affil-num=2
en-affil=
kn-affil=Department of Information and Computer Sciences Toyohashi University of Technology
END

start-ver=1.4
cd-journal=joma
no-vol=41
cd-vols=
no-issue=1
article-no=
start-page=73
end-page=92
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2007
dt-pub=200701
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Statistical Optimization for Geometric Fitting: TheoreticalAccuracy Bound and High Order Error Analysis
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A rigorous accuracy analysis is given to various techniques for estimating parameters of geometric models from noisy data for computer vision applications. First, it is pointed out that parameter estimation for vision applications is very different in nature from traditional statistical analysis and hence a different mathematical framework is necessary in such a domain. After general theories on estimation and accuracy are given, typical existing techniques are selected, and their accuracy is evaluated up to higher order terms. This leads to a “hyperaccurate” method that outperforms existing methods.
en-copyright=
kn-copyright=

en-aut-name=KanataniKenichi
en-aut-sei=Kanatani
en-aut-mei=Kenichi
kn-aut-name=金谷健一
kn-aut-sei=金谷
kn-aut-mei=健一
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Computer Science, Okayama University
END

start-ver=1.4
cd-journal=joma
no-vol=40
cd-vols=
no-issue=1
article-no=
start-page=44
end-page=52
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2006
dt-pub=200601
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Generating Dense Point Matches Using Epipolar Geometry
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Dense point matches are generated over two images by rectifying the two images to align epipolar lines horizontally, and horizontally sliding a template. To overcome inherent limitations of 2-D search, we incorporate the “naturalness of the 3-D shape” implied by the resulting matches.
After stating our rectification procedure, we introduce our multi-scale template matching scheme and our outlier removal technique using tentatively reconstructed 3-D shapes. Doing real image experiments, we discuss the performance of our method and remaining issues.
en-copyright=
kn-copyright=

en-aut-name=SugayaYasuyuki
en-aut-sei=Sugaya
en-aut-mei=Yasuyuki
kn-aut-name=菅谷保之
kn-aut-sei=菅谷
kn-aut-mei=保之
aut-affil-num=1
ORCID=

en-aut-name=KanataniKenichi
en-aut-sei=Kanatani
en-aut-mei=Kenichi
kn-aut-name=金谷健一
kn-aut-sei=金谷
kn-aut-mei=健一
aut-affil-num=2
ORCID=

en-aut-name=KanazawaYasushi
en-aut-sei=Kanazawa
en-aut-mei=Yasushi
kn-aut-name=金沢靖
kn-aut-sei=金沢
kn-aut-mei=靖
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Computer Science, Okayama University

affil-num=2
en-affil=
kn-affil=Department of Computer Science, Okayama University

affil-num=3
en-affil=
kn-affil=Department of Knowledge-based Information Engineering Toyohashi University of Technology
END

start-ver=1.4
cd-journal=joma
no-vol=40
cd-vols=
no-issue=1
article-no=
start-page=53
end-page=63
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2006
dt-pub=200601
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Uncalibrated Factorization Using a Variable Symmetric Affine Camera
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In order to reconstruct 3-D Euclidean shape by the Tomasi-Kanade factorization, one needs to specify an affine camera model such as orthographic, weak perspective, and paraperspective. We present a new method that does not require any such specific models. We show that a minimal requirement for an affine camera to mimic perspective projection leads to a unique camera model, which we call a symmetric affine camera, which has two free functions. We determine their values from input images by linear computation and demonstrate by experiments that an
appropriate camera model is automatically selected.
en-copyright=
kn-copyright=

en-aut-name=KanataniKenichi
en-aut-sei=Kanatani
en-aut-mei=Kenichi
kn-aut-name=金谷健一
kn-aut-sei=金谷
kn-aut-mei=健一
aut-affil-num=1
ORCID=

en-aut-name=SugayaYasuyuki
en-aut-sei=Sugaya
en-aut-mei=Yasuyuki
kn-aut-name=菅谷保之
kn-aut-sei=菅谷
kn-aut-mei=保之
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=HannoAckermann
kn-aut-sei=Hanno
kn-aut-mei=Ackermann
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Computer Science, Okayama University

affil-num=2
en-affil=
kn-affil=Department of Computer Science, Okayama University

affil-num=3
en-affil=
kn-affil=Department of Computer Science, Okayama University
END

start-ver=1.4
cd-journal=joma
no-vol=40
cd-vols=
no-issue=1
article-no=
start-page=64
end-page=77
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2006
dt-pub=200601
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Overview of 3-D Reconstruction from Images
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This article summarizes recent advancements of the theories and techniques for 3-D reconstruction
from multiple images. We start with the description of the camera imaging geometry as
perspective projection in terms of homogeneous coordinates and the definition of the intrinsic and extrinsic parameters of the camera. Next, we described the epipolar geometry for two, three, and four cameras, introducing such concepts as the fundamental matrix, epipolars, epipoles, the trifocal tensor, and the quadrifocal tensor. Then, we present the self-calibration technique based on the stratified reconstruction approach, using the absolute dual quadric constraint. Finally, we give the definition of the affine camera model and a procedure for 3-D reconstruction based on it.
en-copyright=
kn-copyright=

en-aut-name=KanataniKenichi
en-aut-sei=Kanatani
en-aut-mei=Kenichi
kn-aut-name=金谷健一
kn-aut-sei=金谷
kn-aut-mei=健一
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Computer Science, Okayama University
END

start-ver=1.4
cd-journal=joma
no-vol=39
cd-vols=
no-issue=1
article-no=
start-page=40
end-page=45
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2005
dt-pub=200501
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Agent Based Plant Allocation and Transfer Routing of Productsin Case of Emergency
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In this paper, two problems, plant allocation problem and that of transfer routing from plants to customers, are considered simultaneously. Especially, adaptation scheme for emergency cases are checked. To solve these problems, decentralized agent based optimization procedures are used. In our study, oil production and products transfer in Saudi Arabia are treated. Through numerical experiments, practicability of the proposed method is verified.
en-copyright=
kn-copyright=

en-aut-name=Al-SehaimSulaiman
en-aut-sei=Al-Sehaim
en-aut-mei=Sulaiman
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=KonishiMasami
en-aut-sei=Konishi
en-aut-mei=Masami
kn-aut-name=小西正躬
kn-aut-sei=小西
kn-aut-mei=正躬
aut-affil-num=2
ORCID=

en-aut-name=NoseKazuo
en-aut-sei=Nose
en-aut-mei=Kazuo
kn-aut-name=能勢和夫
kn-aut-sei=能勢
kn-aut-mei=和夫
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Graduate School Okayama University

affil-num=2
en-affil=
kn-affil=Faculty of Engineering Okayama University

affil-num=3
en-affil=
kn-affil=Faculty of Engineering Osaka Sangyo University
END

start-ver=1.4
cd-journal=joma
no-vol=39
cd-vols=
no-issue=1
article-no=
start-page=56
end-page=62
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2005
dt-pub=200501
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Extracting Moving Objects from a Moving Camera VideoSequence
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=We present a new method for extracting objects moving independently of the background from a video sequence taken by a moving camera. We first extract and track feature points through the sequence and select the trajectories of background points by exploiting geometric constraints
based on the affine camera model. Then, we generate a panoramic image of the background and compare it with the individual frames. We describe our image processing and thresholding techniques.
en-copyright=
kn-copyright=

en-aut-name=SugayaYasuyuki
en-aut-sei=Sugaya
en-aut-mei=Yasuyuki
kn-aut-name=菅谷保之
kn-aut-sei=菅谷
kn-aut-mei=保之
aut-affil-num=1
ORCID=

en-aut-name=KanataniKenichi
en-aut-sei=Kanatani
en-aut-mei=Kenichi
kn-aut-name=金谷健一
kn-aut-sei=金谷
kn-aut-mei=健一
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Information Technology, Okayama University

affil-num=2
en-affil=
kn-affil=Department of Information Technology, Okayama University
END

start-ver=1.4
cd-journal=joma
no-vol=39
cd-vols=
no-issue=1
article-no=
start-page=63
end-page=70
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2005
dt-pub=200501
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Optimality of Maximum Likelihood Estimation for GeometricFitting and the KCR Lower Bound
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Geometric fitting is one of the most fundamental problems of computer vision. In [8], the author derived a theoretical accuracy bound (KCR lower bound) for geometric fitting in general and proved that maximum likelihood (ML) estimation is statistically optimal. Recently, Chernov and Lesort [3] proved a similar result, using a weaker assumption. In this paper, we compare their formulation with the author’s and describe the background of the problem. We also review recent topics including semiparametric models and discuss remaining issues.
en-copyright=
kn-copyright=

en-aut-name=KanataniKenichi
en-aut-sei=Kanatani
en-aut-mei=Kenichi
kn-aut-name=金谷健一
kn-aut-sei=金谷
kn-aut-mei=健一
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Information Technology, Okayama University
END

start-ver=1.4
cd-journal=joma
no-vol=35
cd-vols=
no-issue=1-2
article-no=
start-page=41
end-page=46
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2001
dt-pub=20010327
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Alkenylation and Allylation of Aldehydes by Using an Ni/Cr/TDAE Redox System
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In 360 females, Bone mineral density (BMD) in lumbar vertebrae (L2-L4) was assessed by quantitative computed tomography (QCT), and the values obtained were compared with the frequency of vertebral transformation or
fracture as assessed by lateral scan image (scanogram) by X-ray CT. A correlation was observed between the frequency of vertebral transformation (or fracture) and lumbar BMD values : BMD under 125 mg/cm(3) was observed over 90% of women with vertebral transformation, and BMD under 70mg/cm(3) was found about 50% of them. These results suggest that decrease in BMD in lumbar vertebrae leads to vertebral transformation or fracture. Thus, measurement of BMD by QCT would be very useful in predicting vertebral
transformation or fractures.
en-copyright=
kn-copyright=

en-aut-name=KuroboshiManabu
en-aut-sei=Kuroboshi
en-aut-mei=Manabu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=TanakaMuneaki
en-aut-sei=Tanaka
en-aut-mei=Muneaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=KishimotoSuguru
en-aut-sei=Kishimoto
en-aut-mei=Suguru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=GotoKentaro
en-aut-sei=Goto
en-aut-mei=Kentaro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=TanakaHideo
en-aut-sei=Tanaka
en-aut-mei=Hideo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=2
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=3
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=4
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=5
en-affil=
kn-affil=Department of Applied Chemistry
END

start-ver=1.4
cd-journal=joma
no-vol=31
cd-vols=
no-issue=1
article-no=
start-page=19
end-page=33
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1996
dt-pub=19961227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Structure of Dusty Plasma as Yukawa System Confined in One-Dimensional External Fields
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=As a model of dusty plasmas in external fields, Yuka.wa system in a one-dimensional external field is analyzed by molecular dynamics simulations and theoretical approaches. It is shown that particles form clear thin layers (sheets) at low temperatures and the number of layers changes discretely with characteristic parameters of the system, accompanying the rearrangements of whole system from nearly equipartitioned layers to also nearly equipartitioned layers. The number, positions and populations of layers are obtained as functions of characteristic parameters. The shell (sheet) model which has been successful for confined one-component plasmas is extended to this system and results of numerical experiments are reproduced to a good accuracy. The effect of cohesive energy in each layer is of essential importance to reproduce discrete changes in the number of sheets.
en-copyright=
kn-copyright=

en-aut-name=TotsujiHiroo
en-aut-sei=Totsuji
en-aut-mei=Hiroo
kn-aut-name=東辻浩夫
kn-aut-sei=東辻
kn-aut-mei=浩夫
aut-affil-num=1
ORCID=

en-aut-name=KishimotoTokunari
en-aut-sei=Kishimoto
en-aut-mei=Tokunari
kn-aut-name=岸本篤也
kn-aut-sei=岸本
kn-aut-mei=篤也
aut-affil-num=2
ORCID=

en-aut-name=TotsujiChieko
en-aut-sei=Totsuji
en-aut-mei=Chieko
kn-aut-name=東辻千枝子
kn-aut-sei=東辻
kn-aut-mei=千枝子
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=3
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=35
cd-vols=
no-issue=1-2
article-no=
start-page=9
end-page=19
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2001
dt-pub=20010327
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Ultra-Micro Hardness Testing and Microscopic Deformationof Polycrystalline Aluminum
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The evaluation of microscopic inhomogeneity of polycrystalline aluminum is performed by measuring the hardness in respective grains. The recently developed ultra-micro hardness tester is used and the effects of the test pattern, the indentation load and the indenting velocity are examined. Then, the relationship between the increase in the hardness caused by the work hardening and the deformation of respective grains are statistically investigated. The hardness testing mode in which the initial load is applied before the onset of measurement gives more stable results than the testing mode without the initial load. The test condition with the indentation load of 9.8mN and the indentation velocity of 0.2 μm/sec seems to be optimum and gives the least dispersion of the measured values in grains. It is shown that the hardness values of respective grains in polycrystalline aluminum as well as their dispersion increase with the applied plastic strain. Discussion is made on the microscopic deformation behavior of polycrystalline aluminum.
en-copyright=
kn-copyright=

en-aut-name=AbeTakeji
en-aut-sei=Abe
en-aut-mei=Takeji
kn-aut-name=阿部武治
kn-aut-sei=阿部
kn-aut-mei=武治
aut-affil-num=1
ORCID=

en-aut-name=TsuboiTomoaki
en-aut-sei=Tsuboi
en-aut-mei=Tomoaki
kn-aut-name=坪井智昭
kn-aut-sei=坪井
kn-aut-mei=智昭
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Graduate School of Natural Science and Engineering and Cooperative Research Center,Okayama University

affil-num=2
en-affil=
kn-affil=Graduate School of Natural Science and Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=34
cd-vols=
no-issue=1-2
article-no=
start-page=1
end-page=12
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2000
dt-pub=20000327
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Falling Snow Melting Characteristics of Warm Water Flowing along Sheet Channels Spread on a Roof
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The experiment for investigating the falling snow melting characteristics of warm water flowing along sheet channels spread on a roof was performed in Tookamachi city, Nigata prefecture from February 6 to February 7, 1995. The sheet surface temperatures at 11 positions in 3 channels were measured. A physical model for a gas-water-snow system was constructed to compare the predicted results with the measured ones. A fully spread uniform water film in the sheet channel was observed in the experiments. The experimental results elucidated that it was feasible to use warm water flowing along sheet channels for melting falling snow on roofs. The temperature drop in the sheet
channel mainly depended on the snowfall intensity, atmospheric temperature and wind speed. Under the influence of the roof edge, the temperature drop in the channel next to the side edge was much larger than that in middle channels. A water-snow two phase flow or a snow covered frozen water was experienced temporarily in the lower reaches of the water flowing channel. These suggest that a larger water flow rate is needed for the channel next to the roof edge, and a higher inlet temperature or a greater water flow rate is required for a severe weather condition. There was reasonably good agreement between the measured and predicted water temperatures.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=SongBaoyin
kn-aut-sei=Song
kn-aut-mei=Baoyin
aut-affil-num=1
ORCID=

en-aut-name=InabaHideo
en-aut-sei=Inaba
en-aut-mei=Hideo
kn-aut-name=稲葉英男
kn-aut-sei=稲葉
kn-aut-mei=英男
aut-affil-num=2
ORCID=

en-aut-name=HoribeAkihiko
en-aut-sei=Horibe
en-aut-mei=Akihiko
kn-aut-name=堀部明彦
kn-aut-sei=堀部
kn-aut-mei=明彦
aut-affil-num=3
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=TakahashiTakashi
kn-aut-sei=Takahashi
kn-aut-mei=Takashi
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=2
en-affil=
kn-affil=Graduate School of Natural Science and Technology

affil-num=3
en-affil=
kn-affil=Graduate School of Natural Science and Technology

affil-num=4
en-affil=
kn-affil=Patedision Co. Ltd.
END

start-ver=1.4
cd-journal=joma
no-vol=34
cd-vols=
no-issue=1-2
article-no=
start-page=13
end-page=17
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2000
dt-pub=20000327
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Effect of Specimen Thickness on Aging and Fatigue Strength of Al-Zn Alloys
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Repeated tensile fatigue strength of the low temperature age-hardened Al-Zn alloys is investigated varying the specimen thickness. Fatigue strength of the age-hardened specimens decreases with the specimen thickness when the
specimen is thinner than a certain thickness, whereas fatigue strength of non age-hardened specimens, i.e., pure aluminum and dilute Al-Zn alloy, does not depend the specimen thickness. The dependence of fatigue strength on the thickness of age-hardened specimen is considered to be caused by the decrease of the strength of specimen as a whole, as a result of increase in volume ratio of the soft surface layer formed after age-hardening with decreasing specimen thickness.
en-copyright=
kn-copyright=

en-aut-name=SakakibaraAkira
en-aut-sei=Sakakibara
en-aut-mei=Akira
kn-aut-name=榊原精
kn-aut-sei=榊原
kn-aut-mei=精
aut-affil-num=1
ORCID=

en-aut-name=TanimotoTadashi
en-aut-sei=Tanimoto
en-aut-mei=Tadashi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=MatsushimaTakahisa
en-aut-sei=Matsushima
en-aut-mei=Takahisa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=HosokawaNorio
en-aut-sei=Hosokawa
en-aut-mei=Norio
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=KanadaniTeruto
en-aut-sei=Kanadani
en-aut-mei=Teruto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=2
en-affil=
kn-affil=Department of Mechanical Engineering, Okayama University of Science

affil-num=3
en-affil=
kn-affil=Graduate School of Okayama University of Science (Present: Daiwabo Co., Ltd.)

affil-num=4
en-affil=
kn-affil=Department of Mechanical Engineering, Okayama University of Science

affil-num=5
en-affil=
kn-affil=Department of Mechanical Engineering, Okayama University of Science
END

start-ver=1.4
cd-journal=joma
no-vol=35
cd-vols=
no-issue=1-2
article-no=
start-page=53
end-page=61
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2001
dt-pub=20010327
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Focusing Characteristic Analysis of Circular Fresnel Zone Plate Lens
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Fresnel zone plate lens (FZPL) has widely been used in electromagnetic antenna applications. Most analysis method based on the potential (scalar) wave approximation has
been applied to a few very limited and simplified cases. The present paper analyzes the FZPL in more general form including the diffraction and transmission using the method
of moments (MoM). The focusing gain characteristics in the oblique incidence as well as in the normal incidence are considered. The MoM solution using the three-dimensional
vectorial formulation requires a large memory space for the FZPL as it is operated at a short wavelength. This is simply overcome by using an iterative conjugate gradient
method for the numerical evaluation. The MoM solutions are compared with the other solutions.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=KimTae Yong
kn-aut-sei=Kim
kn-aut-mei=Tae Yong
aut-affil-num=1
ORCID=

en-aut-name=KagawaYukio
en-aut-sei=Kagawa
en-aut-mei=Yukio
kn-aut-name=加川幸雄
kn-aut-sei=加川
kn-aut-mei=幸雄
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=The Graduate School of Natural Science and Technology

affil-num=2
en-affil=
kn-affil=Departrnent of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=35
cd-vols=
no-issue=1-2
article-no=
start-page=97
end-page=135
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2001
dt-pub=20010327
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Abductive Proof Procedure with Adjusting Derivations for General Logic Programs
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In this paper, we formulate a new integrity constraint in correlation with 3-valued stable models in an abduction framework based on general logic programs. Under the constraint, not every ground atom or its negation is a logical consequence of the theory and an expected abductive explanation, but some atom may be unspecified as a logical consequence by an adjustment. As a reflection of the integrity constraint with an adjustment, we augment an adjusting derivation to Eshghi and Kowalski abductive proof procedure, in which such an unspecified atom can be dealt with.
en-copyright=
kn-copyright=

en-aut-name=YamasakiSusumu
en-aut-sei=Yamasaki
en-aut-mei=Susumu
kn-aut-name=山崎進
kn-aut-sei=山崎
kn-aut-mei=進
aut-affil-num=1
ORCID=

en-aut-name=KuroseYoshinori
en-aut-sei=Kurose
en-aut-mei=Yoshinori
kn-aut-name=黒瀬義則
kn-aut-sei=黒瀬
kn-aut-mei=義則
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Information Technology

affil-num=2
en-affil=
kn-affil=Graduate School of Natural Science and Technology
END

start-ver=1.4
cd-journal=joma
no-vol=35
cd-vols=
no-issue=1-2
article-no=
start-page=137
end-page=146
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2001
dt-pub=20010327
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Characteristics of a Monoacylglycerol Lipase Isolated from Pseudomonas sp. LP7315 -Hydrolysis and Synthesis of Monoglycerides
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A monoacylglycerol lipase (MGL) was purified from Pseudomonas sp. LP7315 by ammonium sulfate precipitation, anion-exchange chromatography, and preparative electrophoresis. The purified enzyme was homogeneous on an SDS-polyacrylamide gel with a molecular mass of 59 kDa. Its
hydrolytic activity was confirmed to be specific for monoglycerides: the enzyme did not hydrolyze diand
triglycerides. MGL was found to be stable even after l-h incubation at 65℃. The hydrolytic activity depended not only on temperature and pH but also on the type of monoglyceride used. MGL also catalyzed monoglyceride synthesis at 65℃ in a solvent-free two-phase system, in which fatty acid droplets were dispersed in the glycerol phase with a low water content. The synthetic reaction
proceeded at a constant rate for approximately 24 h and reached an equilibrium after 48 h of reaction. The initial rate of the synthetic reaction depended on several factors: the type of fatty acid used as the substrate, the amounts of fatty acid and glycerol, and the concentration of MGL in the glycerol phase. To analyze the effects of these factors, a kinetic model was developed based on the assumption that the adsorption equilibrium of MGL molecules at the interface between the two phases is the rate-determining factor for the synthetic reaction. The model was found to yield a good approximation of the initial synthetic rate under various reaction conditions. The analysis suggests that the adsorption behavior of MGL onto the interface had a large effect on the initial rate of the monoglyceride synthesis.
en-copyright=
kn-copyright=

en-aut-name=SakiyamaTakaharu
en-aut-sei=Sakiyama
en-aut-mei=Takaharu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=YoshimiTsuyoshi
en-aut-sei=Yoshimi
en-aut-mei=Tsuyoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=MiyakeAkira
en-aut-sei=Miyake
en-aut-mei=Akira
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=UmeokaMidori
en-aut-sei=Umeoka
en-aut-mei=Midori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=TanakaAtsushi
en-aut-sei=Tanaka
en-aut-mei=Atsushi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=OzakiSho
en-aut-sei=Ozaki
en-aut-mei=Sho
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

en-aut-name=NakanishiKazuhiro
en-aut-sei=Nakanishi
en-aut-mei=Kazuhiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Bioscience and Biotechnology

affil-num=2
en-affil=
kn-affil=Department of Bioscience and Biotechnology

affil-num=3
en-affil=
kn-affil=Department of Bioscience and Biotechnology

affil-num=4
en-affil=
kn-affil=Department of Bioscience and Biotechnology

affil-num=5
en-affil=
kn-affil=Daiwa Kasei K.K.

affil-num=6
en-affil=
kn-affil=Daiwa Kasei K.K.

affil-num=7
en-affil=
kn-affil=Department of Bioscience and Biotechnology
END

start-ver=1.4
cd-journal=joma
no-vol=35
cd-vols=
no-issue=1-2
article-no=
start-page=147
end-page=154
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2001
dt-pub=20010327
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=The role of interhelical cleavage for insecticidal activityof Bacillus thuringiensis Cry4A toxin
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The Cry4A toxin is a dipteran-specific insecticidal protein produced by Bacillus thuringiensis subsp. israelensis as a protoxin of 130 kDa. Its active form is a heterodimer of 20- and 45-kDa fragments which is generated by an interhelical cleavage of a 60-kDa intermediate at the position of Gln236 between α5 and α6 helices in domain I. On the other hand, Cry1Aa, which is also produced as a 130-kDa protoxin but toxic to lepidopteran larvae, was processed into the active 60-kDa fragment with no additional cleavage. To investigate the role of the intramolecular cleavage of Cry4A for its insecticidal activity, the loop between α5 and α6 of Cry4A which includes the cleavage site was substituted for the corresponding region of Cry1Aa. The resulting mutant designated GST-60Loop was expressed as a GST-fusion protein. A difference of the processing profile was observed between GST-60 and GST-60Loop in the in vitro digestion assay by trypsin, and the insecticidal activity of GST-60Loop was two-fold lower than that of GST-60. These results suggested that the interhelical cleavage of Cry4A promoted the toxicity against C. pipiens larvae.
en-copyright=
kn-copyright=

en-aut-name=YamagiwaMasashi
en-aut-sei=Yamagiwa
en-aut-mei=Masashi
kn-aut-name=山際雅詩
kn-aut-sei=山際
kn-aut-mei=雅詩
aut-affil-num=1
ORCID=

en-aut-name=SakaiHiroshi
en-aut-sei=Sakai
en-aut-mei=Hiroshi
kn-aut-name=酒井裕
kn-aut-sei=酒井
kn-aut-mei=裕
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Bioscience and Biotechnology

affil-num=2
en-affil=
kn-affil=Department of Bioscience and Biotechnology
END

start-ver=1.4
cd-journal=joma
no-vol=30
cd-vols=
no-issue=1
article-no=
start-page=9
end-page=17
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19951228
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A Logical Problem Decomposing Method for Decision Makers
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Decision Support Systems (DSS) have been taken as hopeful support tools for decision making for more than 20 years. There are a lot of literatures on DSS, but most of them are not so practical as the designers expected. This paper points out the crux of this situation and argues that the research on DSS should pay some more attention to the decision making activities before the model using stage. A method named "Problem Situation Decomposing Graph (PSDG)" is presented in this paper for helping the decision maker(DM) elicit the decision making problems. A PSDG is an acycle AND/OR logical directed graph, and which includes all the factors affecting the problem situation based on the DM's knowledge. The logical nodes and parameter determining methods in PSDG can reflect the DM's decision making style. This paper introduces some basic concepts of PSDG, discusses some of its characteristics, and proposes a logical adjacency matrix for PSDG representation and analysis.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=DingRonggui
kn-aut-sei=Ding
kn-aut-mei=Ronggui
aut-affil-num=1
ORCID=

en-aut-name=OsakiHirokazu
en-aut-sei=Osaki
en-aut-mei=Hirokazu
kn-aut-name=大崎紘一
kn-aut-sei=大崎
kn-aut-mei=紘一
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Graduate School of Natural Science and Technology

affil-num=2
en-affil=
kn-affil=Department of Mechanical Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=2
article-no=
start-page=73
end-page=85
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1993
dt-pub=19930325
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Design of an Adaptive Observer to Estimate Unknown Periodical Disturbances
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This report deals with the problem of designing an adaptive observer for estimating unknown periodical disturbances. This is very practical problem because in the area of control of servomechanisms such disturbances are always encountered. When the disturbance cannot be directly measured or eliminated at the source it is necessary to perform a prediction. When a periodical disturbance is present the frequencies appear as unknown parameters and they have to be identified. In order to identify the unknown parameters, it is necessary to transform the composite system model, which contains the models of the controlled system and the disturbances, into observable canonical form. In addition, an inverse transformation is required to calculate the estimates of the present disturbances. In this report, firstly, a review of an adaptive observer for estimation of unknown periodical disturbances is presented. Later a calculation of the disturbance estimate is derived using the algebraic programming system REDUCE. The proposed method here allows to perform all the necessary transformations and to obtain the disturbance estimation without using the transformation matrix. The calculations of these transformations are complicated and, hitherto, there is no simple method to perform them. The results of disturbance estimation are illustrated by two examples.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=KroumovValeri T.
kn-aut-sei=Kroumov
kn-aut-mei=Valeri T.
aut-affil-num=1
ORCID=

en-aut-name=InoueAkira
en-aut-sei=Inoue
en-aut-mei=Akira
kn-aut-name=井上昭
kn-aut-sei=井上
kn-aut-mei=昭
aut-affil-num=2
ORCID=

en-aut-name=MasudaShiro
en-aut-sei=Masuda
en-aut-mei=Shiro
kn-aut-name=増田士朗
kn-aut-sei=増田
kn-aut-mei=士朗
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Information Technology

affil-num=2
en-affil=
kn-affil=Department of Information Technology

affil-num=3
en-affil=
kn-affil=Department of Information Technology
END

start-ver=1.4
cd-journal=joma
no-vol=30
cd-vols=
no-issue=1
article-no=
start-page=25
end-page=33
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19951228
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Identification of Electric Charge Distribution Using Dual Reciprocity Boundary Element Models
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Identification of unknown electric charges or sources distributed in space is made from the data observed over the field boundary using dual reciprocity boundary element models. The inhomogeneous term of the Poisson field can equivalently be expressed as the linear combination of the functions associated with the particular solutions to transform into Laplace equation. For the solution procedure, the variational formulation is employed, in which the regular boundary integral approach is incorporated to avoid the singularity. Numerical examples are presented to demonstrate the availability and the capability.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=SunYonghao
kn-aut-sei=Sun
kn-aut-mei=Yonghao
aut-affil-num=1
ORCID=

en-aut-name=KagawaYukio
en-aut-sei=Kagawa
en-aut-mei=Yukio
kn-aut-name=加川幸雄
kn-aut-sei=加川
kn-aut-mei=幸雄
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=30
cd-vols=
no-issue=1
article-no=
start-page=35
end-page=46
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19951228
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Finite Elements with Divergence-free Shape Function and theApplication to Inhomogeneously-loaded Waveguide Analysis
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Divergence-free shape functions are proposed for the finite elements, with which inhomogeneously-loaded and arbitrarily-shaped waveguides are analysed. The method is based on vectorial finite element formulation employing edge elements. The shape functions used for the approximation of the fields are shown analytically to be divergence-free and as an evidence, the non-physical solutions that appeared in the longitudinal component finite element formulation have been shown to be absent. To show the validity of the elements, application is made for the analysis of rectangular waveguides loaded with dielectric slab and a waveguide with curved structure. The solutions obtained are compared with the analytical ones or the solutions reported elsewhere. The degree of accuracy has been found satisfactory.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=MahmoodZaheed
kn-aut-sei=Mahmood
kn-aut-mei=Zaheed
aut-affil-num=1
ORCID=

en-aut-name=KagawaYukio
en-aut-sei=Kagawa
en-aut-mei=Yukio
kn-aut-name=加川幸雄
kn-aut-sei=加川
kn-aut-mei=幸雄
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=30
cd-vols=
no-issue=1
article-no=
start-page=47
end-page=62
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19951228
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Regular Boundary Integral Formulation for the Analysis ofOpen Dielectric / Optical Waveguides
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Regular boundary element method is employed for the variational formulation of Helmholtz equation that governs the waveguiding problems. Like in the Charge simulation method, in this method, the source points associated with the fundamental solutions are allocated outside the domain so that the singular integrals which occur in the standard boundary element procedure can be avoided. First, the formulation is developed for the two-dimensional scalar Helmholtz problem solving for the axial components of either electric or magnetic fields. The application of the formulation is shown for simple hollow rectangular waveguide and dielectric-slab-loaded rectangular waveguide. Then the formulation is extended for the analysis of dielectric waveguides of open type incorporating axial components of both electric and magnetic fields, for the solution of the propagating modes which are generally of hybrid types. To show the validity and quality of the formulation, it is applied to a circular step-index optical waveguide and a dielectric rectangular waveguide. Very close agreements have been found when the solutions are compared with the ones obtained by different methods. One distinct merit of the extended formulation is that it has been fixed to suppress the spurious solutions which are encountered while solved by the conventional boundary element method.
en-copyright=
kn-copyright=

en-aut-name=KagawaYukio
en-aut-sei=Kagawa
en-aut-mei=Yukio
kn-aut-name=加川幸雄
kn-aut-sei=加川
kn-aut-mei=幸雄
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=SunYonghao
kn-aut-sei=Sun
kn-aut-mei=Yonghao
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=MahmoodZaheed
kn-aut-sei=Mahmood
kn-aut-mei=Zaheed
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=3
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=30
cd-vols=
no-issue=1
article-no=
start-page=63
end-page=73
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19951228
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Finite Element Analysis of Open-type Dielectric / Optical Waveguides
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Optical fibers or integrated optical waveguides have arbitrary cross-sectional index or refraction distribution. An efficient finite element method for analyzing the propagation characteristics of dielectric / optical waveguides with open boundary is presented. The propagation modes are hybrid, for which a variational expression is formulated in terms of the longitudinal electric and magnetic field components. Infinite elements are introduced to consider open boundary or to extend the region to infinity. Several specific examples are given and the results are compared with those obtained by other approximate methods. Very close agreements have been found.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=KoshimotoMarcos
kn-aut-sei=Koshimoto
kn-aut-mei=Marcos
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=MahmoodZaheed
kn-aut-sei=Mahmood
kn-aut-mei=Zaheed
aut-affil-num=2
ORCID=

en-aut-name=KagawaYukio
en-aut-sei=Kagawa
en-aut-mei=Yukio
kn-aut-name=加川幸雄
kn-aut-sei=加川
kn-aut-mei=幸雄
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=3
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=30
cd-vols=
no-issue=1
article-no=
start-page=89
end-page=97
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19951228
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Electronic Structure of Mixed Perovskite Oxides
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Based on the tight-binding method, electronic bands of the mixed perovskite oxides are calculated in order to develop the electronic theory of ferroelectric phase transitions in these mixtures which are difficult to describe within the phenomenological theories. Diagonal elements of Hamiltonian matrix of parent materials are assumed to differ by 0.1eV and mixtures are simulated by lattices of supercells containing 2(3) = 8 or 3(3) = 27 unit cells randomly assigned to either material. The width of the conduction and valence bands have maxima and the band gap has a minimum at intermediate mixing ratio. Results are in agreement with those of other analyses on random systems and even 2(3)-cell computation seems to serve as a first approximation for our purpose.
en-copyright=
kn-copyright=

en-aut-name=TotsujiChieko
en-aut-sei=Totsuji
en-aut-mei=Chieko
kn-aut-name=東辻千枝子
kn-aut-sei=東辻
kn-aut-mei=千枝子
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=SanakaYoshiaki
kn-aut-sei=Sanaka
kn-aut-mei=Yoshiaki
aut-affil-num=2
ORCID=

en-aut-name=TotsujiHiroo
en-aut-sei=Totsuji
en-aut-mei=Hiroo
kn-aut-name=東辻浩夫
kn-aut-sei=東辻
kn-aut-mei=浩夫
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=3
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=30
cd-vols=
no-issue=1
article-no=
start-page=99
end-page=110
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19951228
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Experimental Collimation of Cerenkov SHG Blue Laser Beam with a Cylindric Mirror
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A cylindric mirror was used, in place of a parabolic mirror, to collimate the crescent blue laser beam radiated from the Cerenkov SHG in channel waveguide configuration. The cylindric mirror radius is requested to be twice the focal length of the parabolic mirror. The focusing effect of the cylindric mirror in collimation can be compensated by slightly lifting the mirror in its normal direction. Under the condition that the mirror was declined by 5.56° and lifted by 25 μm, we got the　collimated beam with divergence angle less than 1.3 mrad. In the focusing experiment, the collimated beam was focused with spotsize of 1.8 μm. The details on the analysis and experiment are reported.
en-copyright=
kn-copyright=

en-aut-name=WangMing
en-aut-sei=Wang
en-aut-mei=Ming
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=WadaOsami
en-aut-sei=Wada
en-aut-mei=Osami
kn-aut-name=和田修己
kn-aut-sei=和田
kn-aut-mei=修己
aut-affil-num=2
ORCID=

en-aut-name=KogaRyuji
en-aut-sei=Koga
en-aut-mei=Ryuji
kn-aut-name=古賀隆治
kn-aut-sei=古賀
kn-aut-mei=隆治
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Graduated School of Natural Science and Technology

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=3
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=10
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19921125
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Direct Patterning of Ceramic Circuit Board with Q-Switched Nd:YAG Laser
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Direct patterning of copper coated ceramic circuit board is experimentally investigated with Q-switched Nd:YAG laser in order to shorten the time of the trial manufacture of electronic circuit board and to adapt the flexible design change. It is pointed out that the fast direct patterning the speed of which reaches about 100 mm/s is possible if the repetition frequency and the average power are selected properly. Furthermore cutting off and/or drilling of ceramic board are also possible under the condition that the repetition frequency is less than 3kHz. This technique makes it possible the mask1ess patterning of ceramic circuit board which has been widely used recently in place of conventional glass-epoxy or phenolic resin circuit board, and it leads to the shorter time limit of delivery as compared with the conventional end-milling method.
en-copyright=
kn-copyright=

en-aut-name=UnoYoshiyuki
en-aut-sei=Uno
en-aut-mei=Yoshiyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=KubotaShin-ichiro
en-aut-sei=Kubota
en-aut-mei=Shin-ichiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=NakajimaToshikatsu
en-aut-sei=Nakajima
en-aut-mei=Toshikatsu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=OgataKojiro
en-aut-sei=Ogata
en-aut-mei=Kojiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=TadaNobuhiko
en-aut-sei=Tada
en-aut-mei=Nobuhiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=2
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=3
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=4
en-affil=
kn-affil=Hitachi Construction Machinery Co., Ltd.

affil-num=5
en-affil=
kn-affil=Hitachi Construction Machinery Co., Ltd.
END

start-ver=1.4
cd-journal=joma
no-vol=30
cd-vols=
no-issue=1
article-no=
start-page=111
end-page=120
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19951228
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Genetic Algorithm with Evolutionary Chain-Based Mutation and Its Applications
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Mutation is one of the important operators in genetic algorithm. In traditional genetic algorithm, mutation is activated stochastically. In this way it is unknown and cannot be controlled for which individuals to be mutated. Therefore, it is unavoidable that some good individuals are destroyed by mutation and then the evolutionary efficiency of the genetic algorithm is dampened. Owing to this kind of destructivity of mutation, the operator of mutation has to be limited within a very small probability, and the potentiality of mutation is consequently limited. In this paper, we present an evolutionary chain-based mutation and a control strategy of reasonable competition, in which the heuristic information provided by the evaluation function is well utilized. This method avoids the blindness of stochastic mutation. The performance improved in this method is shown by two examples, a fuzzy modeling for the identification of a nonlinear function and a typical combinatorial optimization problem-the traveling salesman problem.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=YeJu
kn-aut-sei=Ye
kn-aut-mei=Ju
aut-affil-num=1
ORCID=

en-aut-name=TanakaMasahiro
en-aut-sei=Tanaka
en-aut-mei=Masahiro
kn-aut-name=田中雅博
kn-aut-sei=田中
kn-aut-mei=雅博
aut-affil-num=2
ORCID=

en-aut-name=TaninoTetsuzo
en-aut-sei=Tanino
en-aut-mei=Tetsuzo
kn-aut-name=谷野哲三
kn-aut-sei=谷野
kn-aut-mei=哲三
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Graduate School of Natural Science and Technology

affil-num=2
en-affil=
kn-affil=Department of Information Technology

affil-num=3
en-affil=
kn-affil=Department of Information Technology
END

start-ver=1.4
cd-journal=joma
no-vol=30
cd-vols=
no-issue=2
article-no=
start-page=9
end-page=13
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1996
dt-pub=19960329
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Effect of the Soft Surface Layer on Fatigue Strength of LowTemperature Aged Al-2mass % Cu Alloy
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Fatigue strength of Al-Cu alloy was examined by a repeated tensile mode when the specimens were aged and reversion annealed. The specimen quenched from 723K and aged fully around room temperature showed fatigue strength which depended on the existence of soft layer, while the specimen quenched from 723K and aged in the same way showed fatigue strength independent of the existence of the soft layer. Fatigue strength of the specimen, of which the soft surface layer was removed, was the same for either quenching temperature. Fatigue strength became higher when the soft surface layer was thickened with reversion annealing for 600s at 323K after aging. The soft surface layer was thought to increase fatigue strength of the aged Al-Cu alloy as well as Al-Zn alloy.
en-copyright=
kn-copyright=

en-aut-name=SakakibaraAkira
en-aut-sei=Sakakibara
en-aut-mei=Akira
kn-aut-name=榊原精
kn-aut-sei=榊原
kn-aut-mei=精
aut-affil-num=1
ORCID=

en-aut-name=KanadaniTeruto
en-aut-sei=Kanadani
en-aut-mei=Teruto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical engineering

affil-num=2
en-affil=
kn-affil=Okayama University of Science
END

start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=1
article-no=
start-page=11
end-page=26
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19921125
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Heat Transfer Characteristics of Two Phase ClosedThermosiphon for Geothermal Energy (1st Report: Measurement on Heat Transfer Coefficient)
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=To prevent freezing of road and aquaduct by extracting geothermal heat with two phase closed thermosiphon has been widely used in a cold area. Both heat transfer characteristics in the underground soil and function of the thermosiphon to extract geothermal heat have to be made clear for the purpose of the above system. This study is directed for the purpose to prevent freezing of fire hydrant and composed of the fundamental experiment and the empirical experiment. In the fundamental study, heat transfer behavior is studied experimentally in the small size filling bath representing the underground soil layer. After recording temperature distribution, heat transfer coefficient is measured, they are proceeded into the correlation between the dimensionless number of Nusselt, Rayleigh and Fourier. The fundamental study is described as the first report.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=HirashimaMasao
kn-aut-sei=Hirashima
kn-aut-mei=Masao
aut-affil-num=1
ORCID=

en-aut-name=InabaHideo
en-aut-sei=Inaba
en-aut-mei=Hideo
kn-aut-name=稲葉英男
kn-aut-sei=稲葉
kn-aut-mei=英男
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Mitsui. Metal Engineering &Service Co., Ltd.

affil-num=2
en-affil=
kn-affil=Department of Mechanical Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=30
cd-vols=
no-issue=1
article-no=
start-page=121
end-page=131
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19951228
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Stability and Sensitivity Analysis in Convex Vector Optimization
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In this paper we provide some theoretical results on stability and sensitivity analysis in convex vector optimization. Given a family of parametrized vector optimization problems, the perturbation maps are defined as the set-valued map which associates to each parameter value the set of minimal points (properly minimal points, weakly minimal points) of the perturbed feasible set with respect to an ordering convex cone. Sufficient conditions for the upper and lower semicontinuity of the perturbations map are obtained. We also provide quantitative properties of the perturbation maps under some convexity assumptions.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=KukHun
kn-aut-sei=Kuk
kn-aut-mei=Hun
aut-affil-num=1
ORCID=

en-aut-name=TaninoTetsuzo
en-aut-sei=Tanino
en-aut-mei=Tetsuzo
kn-aut-name=谷野哲三
kn-aut-sei=谷野
kn-aut-mei=哲三
aut-affil-num=2
ORCID=

en-aut-name=TanakaMasahiro
en-aut-sei=Tanaka
en-aut-mei=Masahiro
kn-aut-name=田中雅博
kn-aut-sei=田中
kn-aut-mei=雅博
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Graduate School of Natural Science and Technology

affil-num=2
en-affil=
kn-affil=Department of Information Technology

affil-num=3
en-affil=
kn-affil=Department of Information Technology
END

start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=1
article-no=
start-page=27
end-page=32
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19921125
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Heat Transfer Characteristics of Two Phase Closed Thermosiphon for Geothermal Energy (2nd Report: Heat Transfer Behavior on Site)
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Heating and refrigerating technique such as snow melting of road and cold storage by utilizing temperature difference between underground soil and atmosphere is widely used[1-4] in a cold area. In the 1st Report, heat transfer characteristics of two phase closed thermosiphon for extracting geothermal energy is studied fundamentally. In the empirical study, heat extract rate is measured in connection with the change of atmospheric temperature utilizing real two thermosiphons on the site. Temperature distribution on the surface of the thermosiphon and underground soil around it is also measured. Based on the data of the empirical experiment, it is confirmed that prevention of freezing for fire hydrant can be achieved by geothermal heat utilizing two phase closed thermosiphon. Present paper describes the heat transfer behavior of the thermosiphon as the 2nd report.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=HirashimaMasao
kn-aut-sei=Hirashima
kn-aut-mei=Masao
aut-affil-num=1
ORCID=

en-aut-name=InabaHideo
en-aut-sei=Inaba
en-aut-mei=Hideo
kn-aut-name=稲葉英男
kn-aut-sei=稲葉
kn-aut-mei=英男
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Mitsui. Metal Engineering &Service Co., Ltd.

affil-num=2
en-affil=
kn-affil=Department of Mechanical Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=1
article-no=
start-page=45
end-page=53
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19921125
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Measurement of Methane Concentration in a Rice Paddy Field with a Tunable Diode Laser Absorption Spectrometry
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A prototype device based on the tunable diode laser absorption spectrometry was constructed and the atmospheric methane concentration near the terrain in a rice paddy field was measured. An open optical path of 50 m length was employed along with a PbSnTe diode laser. Diurnal change of methane density with 30 seconds temporal resolution was recorded associated with meteorological parameters. A feasibility was proven for a practical application for in situ study of atmospheric methane.
en-copyright=
kn-copyright=

en-aut-name=KagawaNaoki
en-aut-sei=Kagawa
en-aut-mei=Naoki
kn-aut-name=香川直己
kn-aut-sei=香川
kn-aut-mei=直己
aut-affil-num=1
ORCID=

en-aut-name=WadaOsami
en-aut-sei=Wada
en-aut-mei=Osami
kn-aut-name=和田修己
kn-aut-sei=和田
kn-aut-mei=修己
aut-affil-num=2
ORCID=

en-aut-name=HaiXu
en-aut-sei=Hai
en-aut-mei=Xu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=KogaRyuji
en-aut-sei=Koga
en-aut-mei=Ryuji
kn-aut-name=古賀隆治
kn-aut-sei=古賀
kn-aut-mei=隆治
aut-affil-num=4
ORCID=

en-aut-name=SanoHiroya
en-aut-sei=Sano
en-aut-mei=Hiroya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=InubushiKazuyuki
en-aut-sei=Inubushi
en-aut-mei=Kazuyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

affil-num=1
en-affil=
kn-affil=The Graduate School of Natural Science and Technology

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=3
en-affil=
kn-affil=Measurement and Test Center, North-East Normal University

affil-num=4
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=5
en-affil=
kn-affil=Faculty of Engineering, Fukuyama University

affil-num=6
en-affil=
kn-affil=Faculty of Bioresource, Mie University
END

start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=1
article-no=
start-page=81
end-page=92
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19921125
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=The Impact of JR Seto Ohashi Line on Residential Land Value
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This paper aims to examine the impact of JR (Japan Railways) Seto Ohashi Line on residential land value. First, the study examines the trends in land value in the area along JR Seto Ohashi Line by applying the area comparison method. The method estimates the effect of JR Seto Ohashi Line on residential land value by comparing land values between the study area and the Okayama Metropolitan Area. Second, the property value method is applied to measure the effect of railroad construction. The effect is estimated with a residential land-value regression, which is calibrated using land value data along the Seto Ohashi Line. Finally, the results are compared with the empirical studies in the Greater Tokyo Region, and various features of the impact of railroad construction on land value are identified.
en-copyright=
kn-copyright=

en-aut-name=AbeHirofumi
en-aut-sei=Abe
en-aut-mei=Hirofumi
kn-aut-name=阿部宏史
kn-aut-sei=阿部
kn-aut-mei=宏史
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Civil Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=2
article-no=
start-page=1
end-page=9
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1993
dt-pub=19930325
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=An Expert System for Determining Precedence Relation in Assembly
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Precedence relation in assembly has been determined by experience only. Now, an expert system is developed for determining such precedence relation. The conjugate states of the units of a product are shown in face frames and unit frames following the frame model. Seven rules are formulated. They consider geometrical interference of units, and make the precedence relation enable operation time to be shorter, and the number of JIG and substandards to be smaller. These rules are programized by computer language(PROLOG).
en-copyright=
kn-copyright=

en-aut-name=KajiharaYasuhiro
en-aut-sei=Kajihara
en-aut-mei=Yasuhiro
kn-aut-name=梶原康博
kn-aut-sei=梶原
kn-aut-mei=康博
aut-affil-num=1
ORCID=

en-aut-name=OsakiHirokazu
en-aut-sei=Osaki
en-aut-mei=Hirokazu
kn-aut-name=大崎紘一
kn-aut-sei=大崎
kn-aut-mei=紘一
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=2
en-affil=
kn-affil=Department of Mechanical Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=30
cd-vols=
no-issue=2
article-no=
start-page=21
end-page=25
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1996
dt-pub=19960329
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Analysis of Quantum Waveguide : Effective Width and Height of Potential for Quantum Wires under Split Gates
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In order to apply quantum waveguides to electronic devices, we calculate the electrostatic potential in the split-gate quantum wire and establish the relation between the electrostatic potential and the square well potential which is usually assumed in simulations of these waveguides. The height and width of the square well potential are expressed as simple functions of the gate voltage and their dependencies are clarified. The results may be useful in calculating the characteristics of
electronic devices based on quantum waveguides as functions of controllable parameters such as gate voltage.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=TachibanaHiroyuki
kn-aut-sei=Tachibana
kn-aut-mei=Hiroyuki
aut-affil-num=1
ORCID=

en-aut-name=TotsujiHiroo
en-aut-sei=Totsuji
en-aut-mei=Hiroo
kn-aut-name=東辻浩夫
kn-aut-sei=東辻
kn-aut-mei=浩夫
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electric and Electronic Engneering

affil-num=2
en-affil=
kn-affil=Department of Electric and Electronic Engneering
END

start-ver=1.4
cd-journal=joma
no-vol=30
cd-vols=
no-issue=2
article-no=
start-page=27
end-page=37
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1996
dt-pub=19960329
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Yukawa System in One-Dimensional External Field
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The behavior of the Yukawa system in external one-dimensional force fields is analyzed by the molecular dynamics simulation. The formation of layered structures at low temperatures is observed and the relation between the number of layers and characteristic parameters of the system is obtained. Since the Yukawa system serves as a model of clouds of dust particles in plasmas (dusty plasma) which play an important role in plasma processes of semiconductor engineering, the results may be useful to control the quality of semiconductor wafers in such processes. In simulations, periodic boundary conditions are
imposed in two dimensions and deformations of periodic boundaries are allowed in order to reduce the effect of boundaries without giving too much constraint on the symmetry.
en-copyright=
kn-copyright=

en-aut-name=TotsujiHiroo
en-aut-sei=Totsuji
en-aut-mei=Hiroo
kn-aut-name=東辻浩夫
kn-aut-sei=東辻
kn-aut-mei=浩夫
aut-affil-num=1
ORCID=

en-aut-name=KishimotoTokunari
en-aut-sei=Kishimoto
en-aut-mei=Tokunari
kn-aut-name=岸本篤也
kn-aut-sei=岸本
kn-aut-mei=篤也
aut-affil-num=2
ORCID=

en-aut-name=TotsujiChieko
en-aut-sei=Totsuji
en-aut-mei=Chieko
kn-aut-name=東辻千枝子
kn-aut-sei=東辻
kn-aut-mei=千枝子
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=3
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=2
article-no=
start-page=41
end-page=58
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1993
dt-pub=19930325
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Design of Hump Profile in Railroad Classification Yard
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The fundamental objective of this paper is to aggregate and establish a set of practical principles, guidelines, and procedures to clarify and improve classification yard design and to enhance the efficiency of the design process. The paper primarily addresses theoretical and technical aspects of hump yard height and grade design, placement of the switches and the retarders. It attempts to compile and document yard design procedures, based on the Theory of Energy Head and Energy Loss. This procedures are applicable to the design of new yards, rehabilitation of the existing yards of different types and sizes including manually operated as well as highly automated classification yards.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=ProkopJiri
kn-aut-sei=Prokop
kn-aut-mei=Jiri
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=MyojinSho
kn-aut-sei=Myojin
kn-aut-mei=Sho
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Civil Engineering

affil-num=2
en-affil=
kn-affil=Department of Civil Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=30
cd-vols=
no-issue=2
article-no=
start-page=39
end-page=43
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1996
dt-pub=19960329
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A Simple Model for Oxygen Conduction in Some Perovskite Compounds
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A simple model for oxygen ion conduction in perovskite compounds is proposed. The potential for an oxygen ion is calculated as the sum of the long range Coulomb potential and short range repulsive potential in a cubic lattice. The activation energy is estimated as the difference in the values of potential at the barrier and at the stable site. When appropriate conditions are satisfied, the activation energy has a minimum as a function of lattice constant in accordance with recent experiments.
en-copyright=
kn-copyright=

en-aut-name=TotsujiChieko
en-aut-sei=Totsuji
en-aut-mei=Chieko
kn-aut-name=東辻千枝子
kn-aut-sei=東辻
kn-aut-mei=千枝子
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=2
article-no=
start-page=59
end-page=71
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1993
dt-pub=19930325
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Simulation of Hump Performance in Railroad Classification Yard
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The paper presents methods for simulation and examination of the performance of a classification yard, including both manual and computer-aided methods. Presented methods are applicable to the simulation and examination of full range of yards of different types and sizes including manually operated as well as highly automated classification yards.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=ProkopJiri
kn-aut-sei=Prokop
kn-aut-mei=Jiri
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=MyojinSho
kn-aut-sei=Myojin
kn-aut-mei=Sho
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Civil Engineering

affil-num=2
en-affil=
kn-affil=Department of Civil Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=7
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1991
dt-pub=19911130
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Effect of Surface and Grain Boundary on the Reversion of Age-Hardened Al-15mass % Zn Alloy
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Reversion of the age-hardened Al-15mass % Zn alloy, in which ellipsoidal GP zones were formed, was investigated by hardness test. Ellipsoidal zones were reverted more quickly near the surface and grain boundary than in the interior, as spherical zones did. The results confirm their role as sources for vacancies in reversion.
en-copyright=
kn-copyright=

en-aut-name=SakakibaraAkira
en-aut-sei=Sakakibara
en-aut-mei=Akira
kn-aut-name=榊原精
kn-aut-sei=榊原
kn-aut-mei=精
aut-affil-num=1
ORCID=

en-aut-name=KanadaniTeruto
en-aut-sei=Kanadani
en-aut-mei=Teruto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=2
en-affil=
kn-affil=Okayama University of Science
END

start-ver=1.4
cd-journal=joma
no-vol=29
cd-vols=
no-issue=2
article-no=
start-page=1
end-page=4
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19950327
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Low Temperature Age-Hardening of Al-12mass % Zn-0.5mass % Cu Alloy
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Effect of addition of a small amount of copper to Al- 12mass % Zn binary alloy on the process of low temperature aging is studied by hardness test and transmission electron microscopy. Age hardening rate after quenching from various temperatures is slowed down by addition of 0.5mass % copper to the binary alloy. The hardness obtained after long aging, however, is increased a little by the addition of copper. The extent of soft surface layer formed by aging in the copper-added alloy is nearly
equal to that obtained in the binary alloy.
en-copyright=
kn-copyright=

en-aut-name=SakakibaraAkira
en-aut-sei=Sakakibara
en-aut-mei=Akira
kn-aut-name=榊原精
kn-aut-sei=榊原
kn-aut-mei=精
aut-affil-num=1
ORCID=

en-aut-name=NakagawaKeiyu
en-aut-sei=Nakagawa
en-aut-mei=Keiyu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=KanadaniTeruto
en-aut-sei=Kanadani
en-aut-mei=Teruto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=2
en-affil=
kn-affil=Okayama University of Science

affil-num=3
en-affil=
kn-affil=Okayama University of Science
END

start-ver=1.4
cd-journal=joma
no-vol=29
cd-vols=
no-issue=2
article-no=
start-page=5
end-page=12
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19950327
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Numerical Study on Transient Heat Characteristics of a Rectangular Latent Heat Storage Vessel
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Transient characteristics of the rectangular latent heat storage vessel packed with shape-stabilized phase change (solid-liquid) material (PCM) are investigated numerically
by solving the governing equations of both the PCM and the heat transfer medium(water) simultaneously as a conjugate problem with the finite difference technique. It's found that the heat storage characteristics are greatly affected by the flow direction of the heat transfer medium since the natural and forced convection coexists in the heat storage vessel. That is, it is classified that the effectively thermal efficiency of the latent heat storage system is obtained by the downflow along vertical PCM for heat storage process and the upflow for heat release process. The effect of the inlet velocity of heat transfer medium(water) on transient heat characteristics of the latent heat storage system is also revealed in the present study.
en-copyright=
kn-copyright=

en-aut-name=InabaHideo
en-aut-sei=Inaba
en-aut-mei=Hideo
kn-aut-name=稲葉英男
kn-aut-sei=稲葉
kn-aut-mei=英男
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=TuPing
kn-aut-sei=Tu
kn-aut-mei=Ping
aut-affil-num=2
ORCID=

en-aut-name=OzakiKoichi
en-aut-sei=Ozaki
en-aut-mei=Koichi
kn-aut-name=尾崎公一
kn-aut-sei=尾崎
kn-aut-mei=公一
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechenical Engineering

affil-num=2
en-affil=
kn-affil=Graduate School of Okayama University

affil-num=3
en-affil=
kn-affil=Department of Mechenical Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=1
article-no=
start-page=9
end-page=20
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1991
dt-pub=19911130
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=The Effect of Electrode Polarity on Electrical Discharge Machining Performance in Water
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Practical utilization of ram type electrical discharge machining in uninflammable fluid has been expected in place of inflammable kerosine type fluid for unmanned operation in a workshop. The electrical discharge machining performance in deionized water is experimentally investigated on the basis of the analysis of the crater generated by a single pulse discharge. The experimental analysis makes it clear that the electrical discharge machining performance in deionized water is greatly affected by the electrode polarity. The metal removal rate in the normal polarity machining is higher than that in reverse polarity machining, while the electrode wear rate in the normal polarity machining is greater than that in reverse polarity machining. Therefore the electrode polarity should be properly selected according to the purpose of machining.
en-copyright=
kn-copyright=

en-aut-name=UnoYoshiyuki
en-aut-sei=Uno
en-aut-mei=Yoshiyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=NakajimaToshikatsu
en-aut-sei=Nakajima
en-aut-mei=Toshikatsu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=OkadaMinoru
kn-aut-sei=Okada
kn-aut-mei=Minoru
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=2
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=3
en-affil=
kn-affil=Department of Mechanical Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=29
cd-vols=
no-issue=2
article-no=
start-page=13
end-page=21
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19950327
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A Method for Designing the Supplying Method of Parts to an Assembly Line
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=We propose a method to design the supplying method of parts to an assembly line. Three types of supplying model (Serial, Parallel, and Mixed) are proposed based on the relation between the area of part and that of the transportation equipment. The part is supplied by the pallet on which the all parts of one product are arranged or by the lot of one part. AGV or conveyor are used to transport the pallet. The supplying model is evaluated from the total transportation cost calculated from the price of the transportation equipment and of land.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=DwiantoGatot
kn-aut-sei=Dwianto
kn-aut-mei=Gatot
aut-affil-num=1
ORCID=

en-aut-name=OsakiHirokazu
en-aut-sei=Osaki
en-aut-mei=Hirokazu
kn-aut-name=大崎紘一
kn-aut-sei=大崎
kn-aut-mei=紘一
aut-affil-num=2
ORCID=

en-aut-name=KajiharaYasuhiro
en-aut-sei=Kajihara
en-aut-mei=Yasuhiro
kn-aut-name=梶原康博
kn-aut-sei=梶原
kn-aut-mei=康博
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Graduate School of Natural Science and Technology

affil-num=2
en-affil=
kn-affil=Dept. of Mechanical Engineering. Faculty of Engineering

affil-num=3
en-affil=
kn-affil=Dept. of Mechanical Engineering. Faculty of Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=1
article-no=
start-page=21
end-page=26
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1991
dt-pub=19911130
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Facilitated Diffusion of Carbon-Dioxide in a Living Body Liquid Film
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A numerical study is performed for the facilitated diffusion of carbon-dioxide in an ultrapure water film flowing downward along a vertical surface. The model adopted for the present work includes the effects of the reaction rate for the hydration of CO(2)in a liquid. Comparison of the total concentration of CO(2) for different film thickness indicates that the effects of the hydration is more remarkable for the thinner liquid film.
en-copyright=
kn-copyright=

en-aut-name=NozuShigeru
en-aut-sei=Nozu
en-aut-mei=Shigeru
kn-aut-name=野津滋
kn-aut-sei=野津
kn-aut-mei=滋
aut-affil-num=1
ORCID=

en-aut-name=InabaHideo
en-aut-sei=Inaba
en-aut-mei=Hideo
kn-aut-name=稲葉英男
kn-aut-sei=稲葉
kn-aut-mei=英男
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=2
en-affil=
kn-affil=Department of Mechanical Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=29
cd-vols=
no-issue=2
article-no=
start-page=23
end-page=27
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19950327
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=An Expert System for Reducing the Variety of Parts in Multi-item Production
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A method for reducing the variety of parts is proposed. The variety of parts in a product and the variety of parts among products are evaluated in consideration of some factors that influence the production cost. Rules are formulated for selecting parts which should be eliminated or whose designs should be changed to reduce these varieties. An expert system is developed based on this method for reducing the variety of parts.
en-copyright=
kn-copyright=

en-aut-name=KajiharaYasuhiro
en-aut-sei=Kajihara
en-aut-mei=Yasuhiro
kn-aut-name=梶原康博
kn-aut-sei=梶原
kn-aut-mei=康博
aut-affil-num=1
ORCID=

en-aut-name=OsakiHirokazu
en-aut-sei=Osaki
en-aut-mei=Hirokazu
kn-aut-name=大崎紘一
kn-aut-sei=大崎
kn-aut-mei=紘一
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=DongRui
kn-aut-sei=Dong
kn-aut-mei=Rui
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=2
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=3
en-affil=
kn-affil=Department of Mechanical Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=29
cd-vols=
no-issue=2
article-no=
start-page=49
end-page=55
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19950327
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Evaluation of Eigenmodes of Dielectric Waveguides by a Numerical Method Based on the BPM
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=For weakly guiding dielectric waveguides, the eigenmode field distributions are calculated numerically with a simple algorithm. In this numerical method, the transverse sampling space can be chosen arbitrarily, and hence a
narrow waveguide can be analyzed. The field satisfying scalar wave equation is expressed by the discrete Fourier transform and the mode eigenvalues and eigenfunctions are calculated by solving an eigenvalue equation numerically.
The validity of this method is checked for 2-D waveguides having step and parabolic or square index distributions. It is found that for the well guided TE modes of the slab waveguide, the accuracy of this method is remarkably good, but some discrepancies are found if the mode is near cut off. In the problems where the normalized guide index b is small, caution should be taken in applying the results of this numerical method.
en-copyright=
kn-copyright=

en-aut-name=AhmedAnis
en-aut-sei=Ahmed
en-aut-mei=Anis
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=TaniguchiShinji
en-aut-sei=Taniguchi
en-aut-mei=Shinji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=WadaOsami
en-aut-sei=Wada
en-aut-mei=Osami
kn-aut-name=和田修己
kn-aut-sei=和田
kn-aut-mei=修己
aut-affil-num=3
ORCID=

en-aut-name=WangMing
en-aut-sei=Wang
en-aut-mei=Ming
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=KogaRyuji
en-aut-sei=Koga
en-aut-mei=Ryuji
kn-aut-name=古賀隆治
kn-aut-sei=古賀
kn-aut-mei=隆治
aut-affil-num=5
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Fujitsu Laboratories Ltd.

affil-num=3
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=4
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=5
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=1
article-no=
start-page=61
end-page=73
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1991
dt-pub=19911130
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=The Model of Water Quality Management for the Hino River
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Lake Biwa is the largest lake in Japan, and one of the most important fresh water resources. The Hino River is the fourth largest river among the rivers which flow into Lake Biwa. The eutrophication of the lake has been warned since the 1960s. In order to improve the water quality of the lake, to decrease the loads through rivers is inevitable. Therefore, it is needed to predict the effects of measures to control pollutant loads and the influence of development in the basin on the loads from rivers before developing the basin and taking measures. This paper deals mainly with the model of water quality management for the Hino River and the effects of the development in the basin on the water quality. The model was formulated considering loads from forests, rice paddy fields, households, housing land, industrial factories. Using this model, a calculation system by a microcomputer was developed and the influence of urbanization of the basin was discussed.
en-copyright=
kn-copyright=

en-aut-name=KawaraOsami
en-aut-sei=Kawara
en-aut-mei=Osami
kn-aut-name=河原長美
kn-aut-sei=河原
kn-aut-mei=長美
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=DannoHideki
kn-aut-sei=Danno
kn-aut-mei=Hideki
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=KunimatsuTakao
kn-aut-sei=Kunimatsu
kn-aut-mei=Takao
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Civil Engineering

affil-num=2
en-affil=
kn-affil=Tohre Engineering, Ltd.

affil-num=3
en-affil=
kn-affil=Faculty of Agriculture, Shiga Prefectural Junior College
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=1
article-no=
start-page=75
end-page=94
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1991
dt-pub=19911130
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Urban Expressway Pricing under Constraint
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Four radials-single ring urban expressway network is priced and, simultaneously, optimized in its spatial formation under the constraint that a balance must be kept of revenue and expenditure. The model consists of three sub-models: road system, car trip generation-attraction and traffic diversion. Network performance is assessed on two criteria; trip number criterion on which the aggregate number of car trips diverted onto expressway is maximized and travel hour criterion on which the travel hours of car trips integrated over the road system; surface and expressway, is minimized. Optimization is tried by numerical calculation for some sets of parameters in the model. The results are summarized as follows; (1) simultaneous optimization of price and spatial formation of the expressway network is possible on each of criteria, (2) trip number criterion produces lower pricing and smaller network while travel hour criterion does higher pricing and larger network, (3) optimum solution lies in a delicate relation of price and spatial network formation that comes from the balance constraint.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=MyojinSho
kn-aut-sei=Myojin
kn-aut-mei=Sho
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=NoguchiHisahumi
kn-aut-sei=Noguchi
kn-aut-mei=Hisahumi
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=YamadaMasahito
kn-aut-sei=Yamada
kn-aut-mei=Masahito
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Civil Engineering

affil-num=2
en-affil=
kn-affil=Daiwa Housing Co.

affil-num=3
en-affil=
kn-affil=Department of Civil Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=29
cd-vols=
no-issue=2
article-no=
start-page=57
end-page=65
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19950327
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=One-Dimensional Classical Plasmas in Ion Traps, Ion Storage Rings, and Semiconductor Quantum Wires
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=As plasmas with extremely reduced dimensionality, properties of one-dimensional classical plasmas are analyzed in the domain of strong coupling and static and dynamic structure factors and the plasmon dispersion relation are obtained. These plasmas may be realized in Penning traps with sufficiently strong confinement and also in semiconductor quantum wires under appropriate conditions.
en-copyright=
kn-copyright=

en-aut-name=TotsujiHiroo
en-aut-sei=Totsuji
en-aut-mei=Hiroo
kn-aut-name=東辻浩夫
kn-aut-sei=東辻
kn-aut-mei=浩夫
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=1
article-no=
start-page=95
end-page=108
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1991
dt-pub=19911130
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=The Systematic Method for Constructing the IDEA BANK Based on the EBL
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This paper describes a method to construct IDEA BANK automatically. IDEA BANK is the data base of the "function-structure module" which is utilized in systematic conceptual design from Value Engineering perspectives. The method based on the Machine Learning EBL technique was evaluated and implemented for the IDEA BANK using SUN workstation. The practical implementation of the IDEA BANK acquisition was discussed after elucidating the problem and solution of the EBL technique in engineering design. In the IDEA BANK system, the structural features of an existing article are analyzed by hierarchically organized domain specific knowledge to yield a systematic explanation of how they function and attain their design goals. The explanation resulted in a generalized version of the Functional Diagram used in Value Engineering from which "function-structure module" can be extracted systematically.
en-copyright=
kn-copyright=

en-aut-name=KawakamiHiroshi
en-aut-sei=Kawakami
en-aut-mei=Hiroshi
kn-aut-name=川上浩司
kn-aut-sei=川上
kn-aut-mei=浩司
aut-affil-num=1
ORCID=

en-aut-name=KonishiTadataka
en-aut-sei=Konishi
en-aut-mei=Tadataka
kn-aut-name=小西忠孝
kn-aut-sei=小西
kn-aut-mei=忠孝
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Information Technology

affil-num=2
en-affil=
kn-affil=Department of Information Technology
END

start-ver=1.4
cd-journal=joma
no-vol=29
cd-vols=
no-issue=2
article-no=
start-page=67
end-page=76
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19950327
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=The Electronic Structure of C(60) Molecule -Structure of π-electron Band-
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The π-electron band of C(60) molecule has been obtained by the tight binding approximation. Application of molecular orbital wave functions derived on the basis of the optimized bond orbital model gives, with simpler calculations, the results in satisfactory agreement with those of previous theoretical analyses.
en-copyright=
kn-copyright=

en-aut-name=TotsujiChieko
en-aut-sei=Totsuji
en-aut-mei=Chieko
kn-aut-name=東辻千枝子
kn-aut-sei=東辻
kn-aut-mei=千枝子
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=MatsubaraTakeo
kn-aut-sei=Matsubara
kn-aut-mei=Takeo
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=ObuchiMasumi
kn-aut-sei=Obuchi
kn-aut-mei=Masumi
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Okayama University of Science

affil-num=3
en-affil=
kn-affil=Okayama University of Science
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=2
article-no=
start-page=1
end-page=16
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19920328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Radiative Characteristics of Frost Layer in Frosting and Defrosting Processes
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Radiative characteristics of the frost layer melted by radiative heat are experimentally examined. A frost layer is heated from above by the radiative heat from a halogen lamp set. Thermal radiation of the lamp has the wavelength spectrum characteristics similar to those of the solar radiation. The effect of the environmental temperature upon the frost melting process is clarified in experiments. The optical characteristics of reflectivity, absorptivity and transmissivity of the frost layer during the melting of the frost layer are measured using special measuring instruments.
en-copyright=
kn-copyright=

en-aut-name=InabaHideo
en-aut-sei=Inaba
en-aut-mei=Hideo
kn-aut-name=稲葉英男
kn-aut-sei=稲葉
kn-aut-mei=英男
aut-affil-num=1
ORCID=

en-aut-name=OtakeHideo
en-aut-sei=Otake
en-aut-mei=Hideo
kn-aut-name=大竹秀雄
kn-aut-sei=大竹
kn-aut-mei=秀雄
aut-affil-num=2
ORCID=

en-aut-name=NozuShigeru
en-aut-sei=Nozu
en-aut-mei=Shigeru
kn-aut-name=野津滋
kn-aut-sei=野津
kn-aut-mei=滋
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=2
en-affil=
kn-affil=Graduate School of Natural Science and Technology

affil-num=3
en-affil=
kn-affil=Department of Mechanical Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=2
article-no=
start-page=17
end-page=24
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19920328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Freezing of Quiescent Water in a Horizontal Cylinder
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Heat transfer measurements were conducted during freezing of quiescent water in a horizontal cylinder. A horizontal cylinder with inner diameter of 61.1 mm is cooled by air in a constant low temperature room and time variations of the radial distribution of fluid temperature were observed. Experimental results for the velocity of the phase change interface, the time taken for complete freezing and apparent freezing heat transfer coefficient were compared with the simple theoretical model based on the quasisteady assumption.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=FengYibu
kn-aut-sei=Feng
kn-aut-mei=Yibu
aut-affil-num=1
ORCID=

en-aut-name=InabaHideo
en-aut-sei=Inaba
en-aut-mei=Hideo
kn-aut-name=稲葉英男
kn-aut-sei=稲葉
kn-aut-mei=英男
aut-affil-num=2
ORCID=

en-aut-name=NozuShigeru
en-aut-sei=Nozu
en-aut-mei=Shigeru
kn-aut-name=野津滋
kn-aut-sei=野津
kn-aut-mei=滋
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Food Engineering, Heilongjiang Commercial College

affil-num=2
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=3
en-affil=
kn-affil=Department of Mechanical Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=2
article-no=
start-page=25
end-page=41
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19920328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=The study on the Evaluation of Eye Movement Using Computer Program
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The eye movement has been studied widely, because it gives various information about the characteristics of visual work. Almost all of those studies have concentrated on the distribution of the visual points, the direction and width of the saccadic movement and the fixation time of the measures. However there are few measures to evaluate the relationship between the visual objects and eye movement. Recently, the personal computer become portable and this makes it possible to analyze the many data and to show the results graphically on the experimental field. In this study, we propose a series of methods to evaluate how a subject looks at a visual field using the queue theory, and how often man looks at the central part of the visual field using the statistical two-dimensional ellipse. We developed the Pascal program on an personal computer(NEC PC9800). This program has 3 functions. One is the measurement of eye movement, the second is the calculation of the proposed measures and the third is the display of the results of these calculations.
en-copyright=
kn-copyright=

en-aut-name=MatsudaMasaaki
en-aut-sei=Matsuda
en-aut-mei=Masaaki
kn-aut-name=松田正明
kn-aut-sei=松田
kn-aut-mei=正明
aut-affil-num=1
ORCID=

en-aut-name=OsakiHirokazu
en-aut-sei=Osaki
en-aut-mei=Hirokazu
kn-aut-name=大崎紘一
kn-aut-sei=大崎
kn-aut-mei=紘一
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=2
en-affil=
kn-affil=Department of Mechanical Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=29
cd-vols=
no-issue=2
article-no=
start-page=89
end-page=94
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19950327
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Backward Scheduling to Minimize the Actual Mean Flow Time with Dependent and Independent Setup Times
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The present paper deals with a new perfomance measure, the actual mean flow time, defined as a mean of the elapsed time of each job counted from the start time on a schedule to the corresponding due date. For the one machine backward scheduling model with a common due date and independent setup times, LPT schedule is shown as the optimal solution for the proposed measure. An optimal
algorithm is presented for the case with dependent setup times on the basis of the algorithm by Arcelus and Chandra for a n / 1 / F forward scheduling problem. The proposed algorithm is coded in C-language and a computational experience is reported through a 16-bit computer.
en-copyright=
kn-copyright=

en-aut-name=SekoguchiKenji
en-aut-sei=Sekoguchi
en-aut-mei=Kenji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=MiyazakiShigeji
en-aut-sei=Miyazaki
en-aut-mei=Shigeji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=The Graduate School of Natural Sience and Technology

affil-num=2
en-affil=
kn-affil=Engineering Mathematics
END

start-ver=1.4
cd-journal=joma
no-vol=28
cd-vols=
no-issue=1
article-no=
start-page=39
end-page=50
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1993
dt-pub=19931130
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A Simple Model for Hydrogen-Bonding Ferroelectrics
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=There are some substances in which their hydrogen bonds are considered to play quite important roles in their ferroelectric or antiferroelectric phase transition. These ferroelectrics usually have large isotope effects in phase transition temperatures and we expect the physics of hydrogen bonds is closely related to the effects. We propose a simple model describing the isolated hydrogen bond. Based on quantum-mechanical analyses of this model, we study the difference between the behavior of a proton and a deuteron in hydrogen bonds.
en-copyright=
kn-copyright=

en-aut-name=TotsujiChieko
en-aut-sei=Totsuji
en-aut-mei=Chieko
kn-aut-name=東辻千枝子
kn-aut-sei=東辻
kn-aut-mei=千枝子
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=MatsubaraTakeo
kn-aut-sei=Matsubara
kn-aut-mei=Takeo
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Institute for Condensed Matter Theory
END

start-ver=1.4
cd-journal=joma
no-vol=28
cd-vols=
no-issue=1
article-no=
start-page=51
end-page=59
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1993
dt-pub=19931130
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Determination of Clay Minerals by the Ignition Loss MethodUsing a Muffle Furnace
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A technique for determining the layer structure and content of clay minerals was developed based on the relationship between temperature, and moisture characteristics of clay minerals. Moisture content in standard specimens, prepared by mixing montmorillonite, kaolinite and quartz in various proportions, was determined by measuring weight loss after heating. Based on the results from differential thermal analysis tests, the ignition loss method was found to be widely applicable to clays with montmorillonite and kaolinite as the main components. Dehydration of constituent water occurred at 530℃ and 800℃ in two- and three-layered clay minerals, respectively.
en-copyright=
kn-copyright=

en-aut-name=KohnoIichiro
en-aut-sei=Kohno
en-aut-mei=Iichiro
kn-aut-name=河野伊一郎
kn-aut-sei=河野
kn-aut-mei=伊一郎
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=TanabeKazuyasu
kn-aut-sei=Tanabe
kn-aut-mei=Kazuyasu
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=TomitaTakemitsu
kn-aut-sei=Tomita
kn-aut-mei=Takemitsu
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Civil Engineering

affil-num=2
en-affil=
kn-affil=Department of Civil Engineering, Fukuyama University

affil-num=3
en-affil=
kn-affil=Department of Civil Engineering, Fukuyama University
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=2
article-no=
start-page=77
end-page=92
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19920328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A Beam Focusing Antenna for the TE(0)n Mode High-Power Millimeter Wave
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This paper describes a method to design an antenna to focus millimeter-wave beam generated by a gyrotron. The antenna, which has been proposed by the authors, consists of a stair-cut circular waveguide and two cylindrical reflectors; one is elliptic and the other is parabolic. Its principle is based on the geometrical optics though slightly modified to consider the diffraction effect. Results of low-power experiments agree well with the design on beam direction, beam width and the position of the focal point. At 35.5 GHz using TE(01) mode, a focused beam with half-power thickness of 13 mm x 10 mm was obtained. This type of antennas find applications to millimeter-wave scattering measurement in fusion plasma research and high- energy-density source for material heating.
en-copyright=
kn-copyright=

en-aut-name=WadaOsami
en-aut-sei=Wada
en-aut-mei=Osami
kn-aut-name=和田修己
kn-aut-sei=和田
kn-aut-mei=修己
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=NakajimaMasamitsu
kn-aut-sei=Nakajima
kn-aut-mei=Masamitsu
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electronics, Kyoto University
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=2
article-no=
start-page=93
end-page=109
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19920328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Transport Simulasion in a Burning Tokamak Plasma
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A one-dimensional tokamak transport code (TASK/TR) has been developed to analyze the evolution of a burning plasma accompanied with fusion reaction. This code deals with the electrons, deuterons, tritons, thermalized α particles, fast α particles and beam ions, separately, in order to describe the dependence of the reaction rate on the ion mixture ratio. As an energy transport model, the drift wave turbulence mode is employed. The heating and current drive by the neutral beam injection as well as the pellet injection for fuelling are also included. This code is applied to a reactor-grade plasma aimed at in the ITER project. The cases of an ignited plasma and a current-driven plasma are examined. The required power for full current drive is estimated. The effect of pellet injection, both fuel and impurity ions, is also studied.
en-copyright=
kn-copyright=

en-aut-name=FukuyamaAtsushi
en-aut-sei=Fukuyama
en-aut-mei=Atsushi
kn-aut-name=福山淳
kn-aut-sei=福山
kn-aut-mei=淳
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=KasaiTakashi
kn-aut-sei=Kasai
kn-aut-mei=Takashi
aut-affil-num=2
ORCID=

en-aut-name=FurutaniYoichiro
en-aut-sei=Furutani
en-aut-mei=Yoichiro
kn-aut-name=古谷洋一郎
kn-aut-sei=古谷
kn-aut-mei=洋一郎
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=3
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=2
article-no=
start-page=129
end-page=138
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19920328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Spectrum of Schottky Noise in Ion Storage Rings
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The spectrum of Schottky noise in ion storage rings is analyzed as density fluctuations in effectively one-dimensional plasmas. Strong coupling effects in these plasmas are discussed in relation to experimental observations.
en-copyright=
kn-copyright=

en-aut-name=TotsujiHiroo
en-aut-sei=Totsuji
en-aut-mei=Hiroo
kn-aut-name=東辻浩夫
kn-aut-sei=東辻
kn-aut-mei=浩夫
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=2
article-no=
start-page=139
end-page=150
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19920328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Scattering by a Penny-Shaped Crack Subject to Oblique Incident Waves
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Scattering problems by a penny-shaped crack are solved using a time-domain boundary integral equation method, The crack is located in an infinite homogeneous, isotropic, linearly elastic solid, and is subjected to an oblique incident wave of either P-, SV-, or SH-wave, The hypersingular integral equation is solved to obtain near-field solutions as well as scattered far-fields. The accuracy of the present method is confirmed by comparing the near-field solutions for different arrangement of elements, Scattered far-fields are calculated for various incident waves, and their usefulness in quantitative non-destructive evaluation is discussed.
en-copyright=
kn-copyright=

en-aut-name=HiroseSohichi
en-aut-sei=Hirose
en-aut-mei=Sohichi
kn-aut-name=廣瀬壮一
kn-aut-sei=廣瀬
kn-aut-mei=壮一
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Civil Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=28
cd-vols=
no-issue=1
article-no=
start-page=129
end-page=138
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1993
dt-pub=19931130
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Numerical Simulation of Rock Toughness Testing
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The testing method of rock toughness is proposed by the international society of rock mechanics (ISRM), but the results may be influenced by the test pieces, and the details of the crack propagation and the stress intensity factors are not clarified through the testing. Also the experimental test requires tedious works for the preparation of test specimen and economical responsibility. The present study aims to simulate numerically the rock toughness testing which is proposed by ISRM. For this purpose, the authors propose a numerical method which can simulate the experimental testing, and they show the propriety of the proposed method by comparing the results with the experimental and other numerical methods. At the same time, they clarify the details of crack propagation behaviors in rocks, and show the change of the stress intensity factors. The proposed method is based on the displacement-type finite element method, and several techniques are introduced to obtain accurate solution of the mechanical behavior near the crack-tip area.
en-copyright=
kn-copyright=

en-aut-name=TaniguchiTakeo
en-aut-sei=Taniguchi
en-aut-mei=Takeo
kn-aut-name=谷口健男
kn-aut-sei=谷口
kn-aut-mei=健男
aut-affil-num=1
ORCID=

en-aut-name=HiroseSohichi
en-aut-sei=Hirose
en-aut-mei=Sohichi
kn-aut-name=廣瀬壮一
kn-aut-sei=廣瀬
kn-aut-mei=壮一
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=OuchterlonyFinn
kn-aut-sei=Ouchterlony
kn-aut-mei=Finn
aut-affil-num=3
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=NakagawaKohji
kn-aut-sei=Nakagawa
kn-aut-mei=Kohji
aut-affil-num=4
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=MiyajiAkihiko
kn-aut-sei=Miyaji
kn-aut-mei=Akihiko
aut-affil-num=5
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=FukuokaYasufumi
kn-aut-sei=Fukuoka
kn-aut-mei=Yasufumi
aut-affil-num=6
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Engineering Science, Okayama University

affil-num=2
en-affil=
kn-affil=Department of Engineering Science, Okayama University

affil-num=3
en-affil=
kn-affil=Swedish Blasting Laboratory, Sweden

affil-num=4
en-affil=
kn-affil=Department of Civil Engineering, Yamaguchi University

affil-num=5
en-affil=
kn-affil=Japan Development and Construction Company Ltd.

affil-num=6
en-affil=
kn-affil=Kawasaki Heavy Industry Company Ltd.
END

start-ver=1.4
cd-journal=joma
no-vol=22
cd-vols=
no-issue=
article-no=
start-page=15
end-page=34
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1988
dt-pub=19880331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=One-Electron State of a Partially Ionized High-Z Ion
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=An effective potential of an isolated partially ionized high-Z ion, calculated within the framework of the statistical models of atoms, is injected into the one-electron Schrödinger equation, in view of evaluating the electron density and comparing it with the results of statistical models. Starting from this initial value, a self-consistent electron density is obtained on the basis of the density functional theory, where quantum natures of electrons are fully taken into account.
en-copyright=
kn-copyright=

en-aut-name=FurutaniYoichiro
en-aut-sei=Furutani
en-aut-mei=Yoichiro
kn-aut-name=古谷洋一郎
kn-aut-sei=古谷
kn-aut-mei=洋一郎
aut-affil-num=1
ORCID=

en-aut-name=TotsujiHiroo
en-aut-sei=Totsuji
en-aut-mei=Hiroo
kn-aut-name=東辻浩夫
kn-aut-sei=東辻
kn-aut-mei=浩夫
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=KomakiKunitaka
kn-aut-sei=Komaki
kn-aut-mei=Kunitaka
aut-affil-num=3
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=TanabeMasahiro
kn-aut-sei=Tanabe
kn-aut-mei=Masahiro
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=3
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=4
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=22
cd-vols=
no-issue=
article-no=
start-page=35
end-page=44
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1988
dt-pub=19880331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Thermodynamic Sum Rules for Mixtures of Charged Particles
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Several methods to derive thermodynamic sum rules for a system including charged particle are proposed and applied to charged mixtures as well as one-component systems. The validity of the statements is examined carefully with respect to the ordering in the powers of the wave number. As for the mixture of electrons and ions, it is shown how the aspect of the one-component plasma or the ionic mixture appears when electrons become strongly degenerate.
en-copyright=
kn-copyright=

en-aut-name=TotsujiHiroo
en-aut-sei=Totsuji
en-aut-mei=Hiroo
kn-aut-name=東辻浩夫
kn-aut-sei=東辻
kn-aut-mei=浩夫
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=28
cd-vols=
no-issue=2
article-no=
start-page=9
end-page=12
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1994
dt-pub=19940315
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Clusters in Low-Concentrated Al-Mg Alloy
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The state above the solubility temperature of GP zones of
Al-3mass % Mg alloy, which has a tendency for precipitation and preprecipitation at low temperature, was studied by resistivity measurement. Homogenization treatment at high temperature reduced Mg atoms in the surface layer. After quenching from 623K, the specimen was annealed sequentially at various temperatures above the GP zone solvus. The stationary resistivity obtained in annealing at a temperature was the same irrespective of the starting state and increased with decreasing annealing temperature. No precipitation was observed in the annealing. The results are not in favor of the segregation of Mg atoms to the dislocation loops but of the short range
clustering.
en-copyright=
kn-copyright=

en-aut-name=SakakibaraAkira
en-aut-sei=Sakakibara
en-aut-mei=Akira
kn-aut-name=榊原精
kn-aut-sei=榊原
kn-aut-mei=精
aut-affil-num=1
ORCID=

en-aut-name=KanadaniTeruto
en-aut-sei=Kanadani
en-aut-mei=Teruto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=NakagawaK.
en-aut-sei=Nakagawa
en-aut-mei=K.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=YokotaY.
en-aut-sei=Yokota
en-aut-mei=Y.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=2
en-affil=
kn-affil=Okayama University of Science

affil-num=3
en-affil=
kn-affil=Okayama University of Science

affil-num=4
en-affil=
kn-affil=Okayama University of Science
END

start-ver=1.4
cd-journal=joma
no-vol=22
cd-vols=
no-issue=
article-no=
start-page=63
end-page=70
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1988
dt-pub=19880331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Mode Choice In Interregional Occupational Person Trips
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The paper is a case study mode choice in interregional occupational person trips. Disagregate behavioral model of logit type is applied to the occupational person trips from Tsuyama area in Okayama Prefecture to Osaka area. The model turned out to give asignificant explanation of the interregional mode choice characteristics. Travel time, travelling expenses and " with or wi thout heavy baggage " were found to be significant.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=MyojinSyo
kn-aut-sei=Myojin
kn-aut-mei=Syo
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=KishinoKeiichi
kn-aut-sei=Kishino
kn-aut-mei=Keiichi
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=YamadaMasahito
kn-aut-sei=Yamada
kn-aut-mei=Masahito
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Civil Engineering

affil-num=2
en-affil=
kn-affil=Consulting Engineer, Chuo Fukken Consultants Co., Ltd.

affil-num=3
en-affil=
kn-affil=Department of Civil Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=23
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=12
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1988
dt-pub=19881122
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=The Study on the Evaluation of the Visual Work Using the Logistic Curve
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Display equipment has been used as communication media in
the factory, office, and home. In order to communicate
effectively, it is necessary to clarify the characteristics
of eye movement in the case of looking at the display. The development of Eye Camera enables us to measure eye movement during work, so that we can collect the many data of eye movement during work. In this study, we proposed a method to evaluate the visual work using the distribution of visual points in X and Y axis. The cumulative distribution is approximated by the logistic curve which shows the symmetry and kurtosis by the parameter. The proposed method was applied to the three typical display models, that is, the digital meter model, reading model, and game model. In the digital meter model, the visual points were distributed symmetrically along the meters, and the symmetry and kurtosis of the distribution varied by the arranged direction of the meter. In the reading model, the visual points were distributed nearly symmetrically and uniformly in each axis and they were moved around the character and line from the period of spectrum analysis. In the game model, the visual points moved according to the target and were distributed symmetrically in the Y axis. And whether the target moved vertically or horizontally, the kurtosis of the distribution became equal in each axis.
en-copyright=
kn-copyright=

en-aut-name=MatsudaMasaaki
en-aut-sei=Matsuda
en-aut-mei=Masaaki
kn-aut-name=松田正明
kn-aut-sei=松田
kn-aut-mei=正明
aut-affil-num=1
ORCID=

en-aut-name=OsakiHirokazu
en-aut-sei=Osaki
en-aut-mei=Hirokazu
kn-aut-name=大崎紘一
kn-aut-sei=大崎
kn-aut-mei=紘一
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Civil Engineering

affil-num=2
en-affil=
kn-affil=Department of Civil Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=28
cd-vols=
no-issue=2
article-no=
start-page=21
end-page=31
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1994
dt-pub=19940315
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Cyclone Dust Collector with a Perforated Internal Rotating Cylinder
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=An experimental investigation has been made of the cyclone dust collector with a perforated internal rotating cylinder. The size of the rotating cylinder is of 0.5D, where D is the diameter of the cyclone body, and is the same size as the outlet tube. The dust collection efficiency as well as the pressure loss has been measured when the inlet flow speed is 9 ~ 21 m/s and the rotating speed of the cylinder is 37 ~ 63 m/s. The velocity and pressure distributions were also measured. It is found that the collection efficiency decreases and the pressure loss increases as the rotating speed increases. It is also shown that both the inward radial velocity and the upward vertical velocity become large as the rotating cylinder increases its speed. As a whole, the rotation of the internal cylinder makes worse performance of the cyclone dust collector.
en-copyright=
kn-copyright=

en-aut-name=YamamotoKyoji
en-aut-sei=Yamamoto
en-aut-mei=Kyoji
kn-aut-name=山本恭二
kn-aut-sei=山本
kn-aut-mei=恭二
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=JiaoXuezhen
kn-aut-sei=Jiao
kn-aut-mei=Xuezhen
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=2
en-affil=
kn-affil=The Graduate School of Natural Science and Technology
END

start-ver=1.4
cd-journal=joma
no-vol=28
cd-vols=
no-issue=2
article-no=
start-page=33
end-page=44
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1994
dt-pub=19940315
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Collimation of Cerenkov-SHG Blue Light with a Parabolic Mirror
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Proposed here is a convenient optical system to collimate the crescent shaped blue laser beam radiated from a Cerenkov SHG in channel waveguide configuration. This collimation system is consisted of a parabolic mirror and has a very large tolerance to the mirror displacement. The anisotropy of the nonlinear crystal on which the waveguide is fabricated has been taken into account. The optimum mirror location is given to obtain a collimated blue laser beam with an aberration less than 0.07λ. By using an objective lens, the collimated beam can be focused down to a thin beam with the spot size less than 1μm.
en-copyright=
kn-copyright=

en-aut-name=WangMing
en-aut-sei=Wang
en-aut-mei=Ming
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=AhmedAnis
en-aut-sei=Ahmed
en-aut-mei=Anis
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=WadaOsami
en-aut-sei=Wada
en-aut-mei=Osami
kn-aut-name=和田修己
kn-aut-sei=和田
kn-aut-mei=修己
aut-affil-num=3
ORCID=

en-aut-name=KogaRyuji
en-aut-sei=Koga
en-aut-mei=Ryuji
kn-aut-name=古賀隆治
kn-aut-sei=古賀
kn-aut-mei=隆治
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=3
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=4
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=28
cd-vols=
no-issue=2
article-no=
start-page=53
end-page=58
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1994
dt-pub=19940315
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Note on the Piezoelectric Constant of PbZrO(3)-PbTiO(3)(PZT)
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=One of the best known solid solution of perovskites is the PbTiO(3)-PbZrO(3) system which is usually abbreviated as PZT. In the phase diagram of this system, there is a drastic phase change from tetragonal to rhombohedral at the molar ratio around 50:50. The PZT crystals are widely used as a practical piezoelectric material because of its very strong piezoelectric effect near this morphotropic phase boundary. We try to explain this anomaly in piezoelectric constant by a phenomenological theory.
en-copyright=
kn-copyright=

en-aut-name=TotsujiChieko
en-aut-sei=Totsuji
en-aut-mei=Chieko
kn-aut-name=東辻千枝子
kn-aut-sei=東辻
kn-aut-mei=千枝子
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=MatsubaraTakeo
kn-aut-sei=Matsubara
kn-aut-mei=Takeo
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=MiyataSatoru
kn-aut-sei=Miyata
kn-aut-mei=Satoru
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Okayama University of Science

affil-num=3
en-affil=
kn-affil=Okayama University of Science
END

start-ver=1.4
cd-journal=joma
no-vol=23
cd-vols=
no-issue=1
article-no=
start-page=61
end-page=68
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1988
dt-pub=19881122
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Determination of Electrical Parameters for Skin during Galvanic Skin Reflex from Continuous Measurement
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Skin impedance satisfies the Cole-Cole arc's law. The change of skin impedance during GSR (Galvanic Skin Reflex) can be expressed by the change of equivalent parallel resistance approximately. Using these characteristics, the complicated change of skin impedance during GSR can be determined continuously from the measurement value in one frequency point.
en-copyright=
kn-copyright=

en-aut-name=YamamotoYoshitake
en-aut-sei=Yamamoto
en-aut-mei=Yoshitake
kn-aut-name=山本尚武
kn-aut-sei=山本
kn-aut-mei=尚武
aut-affil-num=1
ORCID=

en-aut-name=YamamotoTatsuma
en-aut-sei=Yamamoto
en-aut-mei=Tatsuma
kn-aut-name=山本辰馬
kn-aut-sei=山本
kn-aut-mei=辰馬
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineeringtronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=23
cd-vols=
no-issue=1
article-no=
start-page=69
end-page=82
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1988
dt-pub=19881122
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Plasma Oscillation in Semiconductor Superlattice Structure
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The statistical properties of two-dimensional systems of charges in semiconductor superlattices are analyzed and the dispersion relation of the plasma oscillation is calculated. The possibility to excite these oscillations by applying the electric field parallel to the structure is discussed.
en-copyright=
kn-copyright=

en-aut-name=TotsujiHiroo
en-aut-sei=Totsuji
en-aut-mei=Hiroo
kn-aut-name=東辻浩夫
kn-aut-sei=東辻
kn-aut-mei=浩夫
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=TakeiMakoto
kn-aut-sei=Takei
kn-aut-mei=Makoto
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Oepartment of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Oepartment of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=23
cd-vols=
no-issue=2
article-no=
start-page=1
end-page=8
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1989
dt-pub=19890330
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Wettability and Supercooling Phenomena of Ga
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Surface tension (γ(L)) and contact angle (θ) of gallium related to wettability on Teflon and other substrates (Al(2)O(3), SiO(2), glass, graphite, BN, AI, Ni, As etc.) were investigated. The values of Teflon were 0.70(6)N/m and 158° in pure argon atmosphere, and the ones of other substrates were listed in a table in this text. We were interested especially in the relative values, γ(L)'s, on the substrates as compared with γ(L) on Teflon substrate. Liquid Ga showed spreading wetting on pure Ni metal and adhesional wetting on Al (supposed to be covered by A1(2)O(3)) and on metallic polycrystal As. Surface tension of Ga was remarkably decreased by a kind of oxide contamination
due to oxygen in air. The surface layer coated by the contamination was of amorphous state nearly same as liquid Ga. The amorphous coat caused liquid Ga rather high supercooling of △T~35K. It seems that the contamination layer (oxide fi1m) smeared the crystal nucleation sites on the free surface of liquid Ga
en-copyright=
kn-copyright=

en-aut-name=KamiyabuHideto
en-aut-sei=Kamiyabu
en-aut-mei=Hideto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=SakakibaraAkira
en-aut-sei=Sakakibara
en-aut-mei=Akira
kn-aut-name=榊原精
kn-aut-sei=榊原
kn-aut-mei=精
aut-affil-num=2
ORCID=

en-aut-name=MaedaHironobu
en-aut-sei=Maeda
en-aut-mei=Hironobu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=HidaMoritaka
en-aut-sei=Hida
en-aut-mei=Moritaka
kn-aut-name=飛田守孝
kn-aut-sei=飛田
kn-aut-mei=守孝
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=2
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=3
en-affil=
kn-affil=Faculty of Science

affil-num=4
en-affil=
kn-affil=Department of Mechanical Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=24
cd-vols=
no-issue=1
article-no=
start-page=13
end-page=24
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1989
dt-pub=19891129
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Fundamental Study on Electrical Discharge Machining
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The generation mechanism of crater in electrical discharge machining is analyzed with a single pulse discharge device for alloy tool steel, black alumina ceramics, cermet and cemented carbide, investigating the gap voltage, the discharge current, the shape of crater, the wear of electrode and so on. The experimental analysis makes it clear that the shape of crater has a characteristic feature for the kind of workpiece. The shape of electrode, which changes with the wear by an electric spark, has a significant effect on the shape of crater. The diameter and the depth of crater have a close relation to the discharge energy for alloy tool steel, black alumina ceramics and cermet, while those for cemented carbide are related to the discharge current. The shape factor which is the ratio of the depth to the diameter of crater is different for the work material.
en-copyright=
kn-copyright=

en-aut-name=UnoYoshiyuki
en-aut-sei=Uno
en-aut-mei=Yoshiyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=NakajimaToshikatsu
en-aut-sei=Nakajima
en-aut-mei=Toshikatsu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=EndoOsamu
en-aut-sei=Endo
en-aut-mei=Osamu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=2
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=3
en-affil=
kn-affil=Department of Mechanical Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=24
cd-vols=
no-issue=1
article-no=
start-page=25
end-page=39
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1989
dt-pub=19891129
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=An Expert System for the Scheduling of a Flexible Assembly Line for Multi Item Products
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=An expert system, in which preconditions and rules are expressed in logical formulas, is developed to support the scheduling of an automated job shop type multi-item assembly line. This system has the foIIowing characteristics to apply any case of schedulings: (1)Forward scheduling orbackward scheduling can be made. (2)The criterion on the input order of products, the dispatching process at each assembly station, and the selection of products from a buffer can be selected from several priority criteria. (3)Layout, number and velocity of vehicles, and the capacity of each buffer can be changed.
en-copyright=
kn-copyright=

en-aut-name=KajiharaYasuhiro
en-aut-sei=Kajihara
en-aut-mei=Yasuhiro
kn-aut-name=梶原康博
kn-aut-sei=梶原
kn-aut-mei=康博
aut-affil-num=1
ORCID=

en-aut-name=OsakiHirokazu
en-aut-sei=Osaki
en-aut-mei=Hirokazu
kn-aut-name=大崎紘一
kn-aut-sei=大崎
kn-aut-mei=紘一
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Graduate school of natural science and technology

affil-num=2
en-affil=
kn-affil=Department of mechanical engineering
END

start-ver=1.4
cd-journal=joma
no-vol=23
cd-vols=
no-issue=2
article-no=
start-page=9
end-page=19
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1989
dt-pub=19890330
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A Design Method for Pin Holding Type Jig
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Multi-item flexible manufacturing systems have been spread to correspond the short life-cycle and the diversification of products. Part handling plays an important role to operate multi-functional robot efficiently in these systems, and many jigs are widely used to hold a part. They should be exchanged at once according to changing products. In this paper, we propose a pin jig which holds a part with two pins, and design method of the position, length and diameter of those pins for a cylindrical part. This jig has the following characteristics. As a surface of the jig is inclined to use gravity, the part can be fixed without any external forces. Therefore the structure of jig becomes simple, and loading and unloading of a part becomes easy for a robot hand.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=KurodaTsutomu
kn-aut-sei=Kuroda
kn-aut-mei=Tsutomu
aut-affil-num=1
ORCID=

en-aut-name=OsakiHirokazu
en-aut-sei=Osaki
en-aut-mei=Hirokazu
kn-aut-name=大崎紘一
kn-aut-sei=大崎
kn-aut-mei=紘一
aut-affil-num=2
ORCID=

en-aut-name=MatsudaMasaaki
en-aut-sei=Matsuda
en-aut-mei=Masaaki
kn-aut-name=松田正明
kn-aut-sei=松田
kn-aut-mei=正明
aut-affil-num=3
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=FujisawaKeita
kn-aut-sei=Fujisawa
kn-aut-mei=Keita
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Tosco Co. LTD.

affil-num=2
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=3
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=4
en-affil=
kn-affil=Mitsubishi Electric Co., LTD.
END

start-ver=1.4
cd-journal=joma
no-vol=23
cd-vols=
no-issue=2
article-no=
start-page=21
end-page=32
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1989
dt-pub=19890330
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=An Applicability of Aggregate and Disaggregate Estimations to Mode Choice by Inter-regional Occupational Person Trips
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Diversion model and disaggregate behavioral model of logit type are adopted as aggregate and disaggregate estimates, respectively. Diversion model is assumed as a binary choice process including diversion ratio function at each step in the process. Diversion ratio is assumed as a function of generalized-travel-time ratio. The function is identified with each of the two steps of diversion; diverson from rail and bus to car at first and from the rest undiverted to bus at second. The data used are those on inter-regional occupational person trips. Each function are found enough and/or critically significant in the statistical sense. At the begginning, sixteen characteristics variables are enrolled in disaggregate model, which are identified by use of the above data. Six variables are reached finally and are all reasonable. A brief comparison of goodness of fit to the data are made between two models.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=MyojinSho
kn-aut-sei=Myojin
kn-aut-mei=Sho
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=YamadaMasahito
kn-aut-sei=Yamada
kn-aut-mei=Masahito
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=FujiiNaoto
kn-aut-sei=Fujii
kn-aut-mei=Naoto
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Civil Engineering

affil-num=2
en-affil=
kn-affil=Department of Civil Engineering

affil-num=3
en-affil=
kn-affil=Graduate Student
END

start-ver=1.4
cd-journal=joma
no-vol=23
cd-vols=
no-issue=2
article-no=
start-page=33
end-page=44
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1989
dt-pub=19890330
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Flow of Rarefied Vapour past a Liquid Sphere
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This paper deals with the low Mach numbers flow of a rarefied vapour past a liquid sphere accompanied with condensation and evaporation at its surface. The linearized Bhatnager-Gross-Krook(B-G-K} equation is used for the analysis, and from it the integral equations of the density, temperature and flow velocities are derived. These integral equations are solved numerically over a wide range of the Knudsen number covering from the slip flow to the nearly free molecular flow. The drag on the sphere is also calculated and is compared with that of previous work.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=IshiharaYuji
kn-aut-sei=Ishihara
kn-aut-mei=Yuji
aut-affil-num=1
ORCID=

en-aut-name=YamamotoKyoji
en-aut-sei=Yamamoto
en-aut-mei=Kyoji
kn-aut-name=山本恭二
kn-aut-sei=山本
kn-aut-mei=恭二
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Engineering Mathematics

affil-num=2
en-affil=
kn-affil=Engineering Mathematics
END

start-ver=1.4
cd-journal=joma
no-vol=23
cd-vols=
no-issue=2
article-no=
start-page=45
end-page=55
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1989
dt-pub=19890330
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=On Robust Incomplete Choleski-Conjugate Gradient Method And Its Modification
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This paper includes a solver for a large sparse set of linear algebraic equations which are obtained by the application of the finite element method to static structural problems. Proposed method is a modification of Robust Incomplete Choleski-Conjugate Gradient Method, which belongs to Preconditioned Conjugate Gradient Method suitable for supercomputers. Through a number of numerical experiments the authors show that Robust Incomplete Choleski-Conjugate Gradient Method sometimes fails in to obtain the solutions, secondly they clarify the reason of the failures from the theoretical viewpoint, and finally they propose a modification of the robust method by the introduction of the theoretical result. Proposed method is as effective as the original, and it can overcome the demerit of Robust Method which is clarified through numerical experiments.
en-copyright=
kn-copyright=

en-aut-name=TaniguchiTakeo
en-aut-sei=Taniguchi
en-aut-mei=Takeo
kn-aut-name=谷口健男
kn-aut-sei=谷口
kn-aut-mei=健男
aut-affil-num=1
ORCID=

en-aut-name=FujiwaraKohji
en-aut-sei=Fujiwara
en-aut-mei=Kohji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Engineering Science Department

affil-num=2
en-affil=
kn-affil=Civil Engineering Department
END

start-ver=1.4
cd-journal=joma
no-vol=24
cd-vols=
no-issue=1
article-no=
start-page=81
end-page=92
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1989
dt-pub=19891129
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Analysis of the Radiation Characteristics of a Primary-Feed Waveguide in a Quasi-Optical Antenna for Circular TE(On) Mode
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Are calculated the radiation characteristics of two types of primary-feed waveguides of millimeter wave quasi-optical antennas, which transform circular TE(On) mode into a linearly polarized beam. These antennas are utilized for heating and diagnostics of fusion plasma. Analysis is based on the Huygens-Fresnel principle, which takes the diffraction effect into account. For Convenience in analysis, a feed waveguide is divided into two sections, an uniform waveguide section and a visor section. Assuming that the diameter of the waveguide is several times as large as the wavelength and that the structure of the visor is open, the radiation field is approximated by superposition of direct radiation, and first and second reflection on the visor. Numerical results are presented and compared with experimental results. In these types of waveguides, the shadow section on the visor has a great influence on the radiation field. The results of calculation show that the length of the visor should be longer than that obtained by the geometrical optics, and the longer visor reduces the side-lobe level in the direction of the waveguide axis. The results agree well with those in experiments.
en-copyright=
kn-copyright=

en-aut-name=WadaOsami
en-aut-sei=Wada
en-aut-mei=Osami
kn-aut-name=和田修己
kn-aut-sei=和田
kn-aut-mei=修己
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=24
cd-vols=
no-issue=1
article-no=
start-page=93
end-page=105
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1989
dt-pub=19891129
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Propagation Characteristics of Superlattice Potentials and their Optimization
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Propagation of charged carriers in semiconductor
superlattices is analyzed on the basis of the effective mass approximation with appropriate boundary conditions at heterojunctions taken into account. Applying the finite element method, clarified are the effects of details of the potential profile, such as linear and smooth gradings and random fluctuations, on characteristics of superlattices which are expected to work as collector barriers and energy filters in electronic devices.
en-copyright=
kn-copyright=

en-aut-name=TotsujiHiroo
en-aut-sei=Totsuji
en-aut-mei=Hiroo
kn-aut-name=東辻浩夫
kn-aut-sei=東辻
kn-aut-mei=浩夫
aut-affil-num=1
ORCID=

en-aut-name=HatataniTeruki
en-aut-sei=Hatatani
en-aut-mei=Teruki
kn-aut-name=畑谷光輝
kn-aut-sei=畑谷
kn-aut-mei=光輝
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=15
end-page=21
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19901214
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Effect of Quenching Condition on the Growth of GP Zones in Al-lmass % Ag Alloy
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Aging of Al-lmass % Ag alloy at 273K after quenching under various conditions was studied by measurement of electrical resistivity. Scattering of the quasi-equilibrium value of resistivity (p(e)) was not random but closely related to the as-quenched value (p(o)); P(e) increased with increasing p(o)' When the quenching temperature (T(q)) was lower than or equal to 773K, the state at p(e) was controlled substantially by the concentration of quenched vacancy. On the other hand, when T(q)>823K, GP zones formed during quenching played an important role, instead of quenched vacancies, in determining the state.
en-copyright=
kn-copyright=

en-aut-name=SakakibaraAkira
en-aut-sei=Sakakibara
en-aut-mei=Akira
kn-aut-name=榊原精
kn-aut-sei=榊原
kn-aut-mei=精
aut-affil-num=1
ORCID=

en-aut-name=KanadaniTeruto
en-aut-sei=Kanadani
en-aut-mei=Teruto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=2
en-affil=
kn-affil=Okayama University of Science
END

start-ver=1.4
cd-journal=joma
no-vol=24
cd-vols=
no-issue=1
article-no=
start-page=115
end-page=133
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1989
dt-pub=19891129
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Trends in the Regional Structure of Manufacturing Industries in Japan
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The rapid economic growth of Japan in the postwar period has brought about the over-concentration of activities in a few large cities, and local regions have been losing their economic vitality due to the regional differentials and the population loss. Regional development planning in Japan has sought to achieve a balanced growth of the nation through the development of industries in local regions. This paper aims to examine the regional structure of manufacturing industries in the postwar period and to
identify its current problems. Three methods, namely the analysis of coefficient of variation, the rateshare analysis and the shift-share analysis are applied using employment data of manufacturing industries for the years 1955 to 1985. Findings show that while the employment of manufacturing industries has been markedly decentralized from metropolitan to local regions, the disparities in growth rates still exist among regions.
en-copyright=
kn-copyright=

en-aut-name=AbeHirofumi
en-aut-sei=Abe
en-aut-mei=Hirofumi
kn-aut-name=阿部宏史
kn-aut-sei=阿部
kn-aut-mei=宏史
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=NogataMikio
kn-aut-sei=Nogata
kn-aut-mei=Mikio
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Civil Engineering

affil-num=2
en-affil=
kn-affil=Okayama Prefectural Office
END

start-ver=1.4
cd-journal=joma
no-vol=24
cd-vols=
no-issue=1
article-no=
start-page=135
end-page=152
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1989
dt-pub=19891129
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Numerical Simulation of Multicrack Propagation Behaviour in Steel Structure
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This paper describes the numerical simulation method of the multi-crack propagation behaviour which appear in a part of civil engineering structures with complex geometrical configuration like steel bridges. Proposed method can treat the interaction of several cracks which locate in a short distance each other, and the process of their growth can be grasped. The method is based on the finite element method, and the linear fracture mechanics is assumed. Proposed method includes following tools for the simulation of the crack propagation behaviour: Automatic Mesh Generators for 3-D, 2-D structural analysis, and 2-D crack propagation analysis, Multi-level Structural Analysis Technique, Estimation Method of the crack growth and the angle of cracks and the modelling method of traffic loadings. The validity of the method is investigated by comparing the result to the experimental one.
en-copyright=
kn-copyright=

en-aut-name=TaniguhiTakeo
en-aut-sei=Taniguhi
en-aut-mei=Takeo
kn-aut-name=谷口健男
kn-aut-sei=谷口
kn-aut-mei=健男
aut-affil-num=1
ORCID=

en-aut-name=SuetsuguTsuyoshi
en-aut-sei=Suetsugu
en-aut-mei=Tsuyoshi
kn-aut-name=末次剛
kn-aut-sei=末次
kn-aut-mei=剛
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=IwasakiMasaki
kn-aut-sei=Iwasaki
kn-aut-mei=Masaki
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Engineering Science

affil-num=2
en-affil=
kn-affil=Department of Civil Engineering

affil-num=3
en-affil=
kn-affil=Yokogawa Bridge Works, LTD.
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=51
end-page=57
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19901214
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Superconductivity Proximity Effect in Inhomogeneous Media
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The superconductivity proximity effect in the dirty limit is revisited and equations and boundary conditions are obtained for the case of inhomogeneous media with continuously varying characteristic parameters.
en-copyright=
kn-copyright=

en-aut-name=TotsujiHiroo
en-aut-sei=Totsuji
en-aut-mei=Hiroo
kn-aut-name=東辻浩夫
kn-aut-sei=東辻
kn-aut-mei=浩夫
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=24
cd-vols=
no-issue=2
article-no=
start-page=11
end-page=16
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19900329
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Aging in Dilute Al-Si Alloys
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Aging behavior of Al-0.23mass % Si alloy was studied by measurements of elecrical resistivity. Resistvity maximum was observed in the aging curves at 273K after quenching from various temperatures. Appearance of maximum and its dependence on the quenching temperature were attributed to the formation of GP zones. Even in a more dilute alloy as 0.01mass % Si, the maximum of resistivity was also recognized.
en-copyright=
kn-copyright=

en-aut-name=SakakibaraAkira
en-aut-sei=Sakakibara
en-aut-mei=Akira
kn-aut-name=榊原精
kn-aut-sei=榊原
kn-aut-mei=精
aut-affil-num=1
ORCID=

en-aut-name=KanadaniTeruto
en-aut-sei=Kanadani
en-aut-mei=Teruto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=2
en-affil=
kn-affil=Okayama University of Science
END

start-ver=1.4
cd-journal=joma
no-vol=24
cd-vols=
no-issue=2
article-no=
start-page=17
end-page=30
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19900329
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Film Continuity Problem on Journal Bearing Design
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Pressure distribution has been measured and analyzed to clarify the fundamental characteristics of "continuous oil-film" formed in a transparent journal bearing, into which oil in general use is supplied. Measured pressure mostly shows quasi-Sommerfeld distribution, which is characterized by downstream shift of pressure profile and underdevelopment of pressure trough compared with Sommerfeld distribution for perfect oil-film. Sommerfeld distribution is approximately observed only under limited
conditions : low eccentricity and low speed. Quasi-Sommerfeld state is rather common in "continuous oil-film", unruptured film formed by using practical lubricants, than Sommerfeld state. Continuous oil-film is accompanied by fine bubbles and is controlled by the growing up or down of the bubbles.
en-copyright=
kn-copyright=

en-aut-name=KonishiTadataka
en-aut-sei=Konishi
en-aut-mei=Tadataka
kn-aut-name=小西忠孝
kn-aut-sei=小西
kn-aut-mei=忠孝
aut-affil-num=1
ORCID=

en-aut-name=BabaMitsuru
en-aut-sei=Baba
en-aut-mei=Mitsuru
kn-aut-name=馬場充
kn-aut-sei=馬場
kn-aut-mei=充
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Information Technology

affil-num=2
en-affil=
kn-affil=Department of Mechanical Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=71
end-page=87
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19901214
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Optimal Pricing and Planning of Urban Expressway System
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A transportation planning way of approach is applied to optimal pricing and planning of urban expressway network. Two kinds of network are investigated ; four radials with one ring system and four radials with two rings system. The model is composed of three submodels ; road systell, trip generation-attraction and traffic diversion. Some iaplicative aspects are shown of the optimal solutions that maximize the aggregate number of the trips diverted to expressway under constraints ; equilibrium of revenue and expenditure and traffic capacity constraint. (1) traffic flow has the peaks at junctions on radial expressway that are adjusted to be equal to the traffic capacity. (2) two rings system realizes the larger aggregate number of diverted trips by lower toll rate than one ring system does. (3) well-located second ring has a remarkable effect on improvement in accessibility to expressway and (4) some parameters in the model have curious effects on the optimal system.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=MyojinSho
kn-aut-sei=Myojin
kn-aut-mei=Sho
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=YamadaMasahito
kn-aut-sei=Yamada
kn-aut-mei=Masahito
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=FujiiNaoto
kn-aut-sei=Fujii
kn-aut-mei=Naoto
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Civil Engineering

affil-num=2
en-affil=
kn-affil=Department of Civil Engineering

affil-num=3
en-affil=
kn-affil=ONRON Co., Ltd.
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=89
end-page=98
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19901214
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=The Structure of Interregional Migration in Japanese Regions : An Application of Multidimensional Scaling
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Multidimensional scaling (MDS) has been used in a wide variety of research fields; psychology, political science, anthropology, marketing research, urban and regional planning, and so on. In practical terms, MDS is a statistical method to make a picture of the information in the data. It enables us to examine the "hidden structure" of a set of data. When the set of data is large, MDS is extremely useful, since it is easier and more informative to look at a picture than the data themselves. In this paper, MDS is applied to the interregional migration data of Japanese regions for the years 1960-85. Findings show that the two-dimensional configuration of regions estimated by MDS generally corresponds with the geographical locations of regions, and the structure of interregional migration was very stable over the study years 1960-85. It is also suggested that MDS is a useful tool to identify the relationships between regions using the spatial interaction data.
en-copyright=
kn-copyright=

en-aut-name=AbeHirofumi
en-aut-sei=Abe
en-aut-mei=Hirofumi
kn-aut-name=阿部宏史
kn-aut-sei=阿部
kn-aut-mei=宏史
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=OishiManabu
kn-aut-sei=Oishi
kn-aut-mei=Manabu
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Civil Engineering

affil-num=2
en-affil=
kn-affil=Japan Freight Railway Company
END

start-ver=1.4
cd-journal=joma
no-vol=24
cd-vols=
no-issue=2
article-no=
start-page=41
end-page=47
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19900329
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Control of Microscopic Superconducting Channel by the Proximity Effect
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A possibility to control the microscopic superconducting
channel based on the proximity effect is theoretically shown by a simple one-dimensional analysis of de Gennes' equation for the order parameter.
en-copyright=
kn-copyright=

en-aut-name=TotsujiHiroo
en-aut-sei=Totsuji
en-aut-mei=Hiroo
kn-aut-name=東辻浩夫
kn-aut-sei=東辻
kn-aut-mei=浩夫
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Elecrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=24
cd-vols=
no-issue=2
article-no=
start-page=49
end-page=65
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19900329
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Characteristics of Errors in Open and Closed Trilateration Nets
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Distance measurements have been more and more easy and accurate to carry out, and it is expected that distance mesurements may provide rather accurate results than angle measurements. Under these circumstances, caracteritics of errors in typical trilateration nets are investigated. The nets investigated are as follows: From single row of chains to pranimetrically extended nets in figure, open and closed networks with respect to external constraint, and with and without as to internal constraint. Computations are performed by use of the method of condition equations, and behaviours of error propagation and errors of coordinates of stations in the nets are shown in case of typical nets. For example, effects for decrease in error by composing a double row of chains and by enforcing external constraints are explained.
en-copyright=
kn-copyright=

en-aut-name=MoriChuji
en-aut-sei=Mori
en-aut-mei=Chuji
kn-aut-name=森忠次
kn-aut-sei=森
kn-aut-mei=忠次
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=MachidaKen-ichi
kn-aut-sei=Machida
kn-aut-mei=Ken-ichi
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Civil Engineering

affil-num=2
en-affil=
kn-affil=Sagae Technical High School
END

start-ver=1.4
cd-journal=joma
no-vol=24
cd-vols=
no-issue=2
article-no=
start-page=79
end-page=87
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19900329
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Mean Time Between Failure of Ring Arbiter with Requests Differing in Incidences
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In asynchronous arbiters, failures may happen, caused by metastable operations. The purpose of this study is to derive a formula to estimate such failures in a ring arbiter as mean time between failures (MTBF), under the condition that incidences of requests issued in all devices are different from each other. The operation of the arbiter is formularized by a markov chain. This chain is used to decide the probability at which each of possible failures contributes to MTBF. The sum of such probabilities gives the MTBF which can be represented as a sum of a finite number of terms. As an example, MTBF of a ring arbiter composed of 3 cells is shown.
en-copyright=
kn-copyright=

en-aut-name=SatoYoichiro
en-aut-sei=Sato
en-aut-mei=Yoichiro
kn-aut-name=佐藤洋一郎
kn-aut-sei=佐藤
kn-aut-mei=洋一郎
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Information Technology
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=2
article-no=
start-page=9
end-page=15
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1991
dt-pub=19910328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=X-ray Topographs of Strain Field Induced by Locally Ion-Plated Films on Si Substrates
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Strains induced in the Si substrates by TiN film were observed with X-ray topography. The image of the sample with TiN film 0.45μm thick was like that of a dislocation loop observed with transmission electron microscope. The images of the samples with TiN films 1.65, and 1.9μm thick were different; blackening spreaded in the <112> and <110> direction from the ring contrast in shape of four-lobed rosette pattern. Spreading extended 1.6 times longer than the radius of the ring contrast along the <112> direction. The strain field extended 0.1μm in depth from the top surface where TiN was plated. From the topographs of bent Si beam, it was found that the blackness was almost proportional to the strain. The strains induced by TiN film locally ion-plated were smaller than those observed
previously when TiN was ion-plated on the whole top surface of the substrate. Fine structures were observed in the topographs which could not be explained by the kinematical theory.
en-copyright=
kn-copyright=

en-aut-name=MikuniMasato
en-aut-sei=Mikuni
en-aut-mei=Masato
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=HidaMoritaka
en-aut-sei=Hida
en-aut-mei=Moritaka
kn-aut-name=飛田守孝
kn-aut-sei=飛田
kn-aut-mei=守孝
aut-affil-num=2
ORCID=

en-aut-name=NishidaNorihide
en-aut-sei=Nishida
en-aut-mei=Norihide
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=SakakibaraAkira
en-aut-sei=Sakakibara
en-aut-mei=Akira
kn-aut-name=榊原精
kn-aut-sei=榊原
kn-aut-mei=精
aut-affil-num=4
ORCID=

en-aut-name=YamadaMasuo
en-aut-sei=Yamada
en-aut-mei=Masuo
kn-aut-name=山田益男
kn-aut-sei=山田
kn-aut-mei=益男
aut-affil-num=5
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=2
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=3
en-affil=
kn-affil=Industrial Technical Center of Okayama Prefecture

affil-num=4
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=5
en-affil=
kn-affil=Department of Mechanical Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=2
article-no=
start-page=17
end-page=23
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1991
dt-pub=19910328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Fatigue Strength of Age-Hardened Al-Zn Alloys under Repeated Tensile Loading
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Effect of the soft surface layer that was formed on low temperature aging of Al-Zn alloy on fatigue strength was studied under repeated tensile loading. Vickers microhardness test revealed that there existed less hardened region in the vicinity of grain boundary and surface, and that the region extends 50 to 100μm from the surface inward. From the plot of the stress amplitude against the number of cycles to failure, it is concluded that the presence of less hardened surface layer strengthens fatigue resistance of the age hardened Al-Zn alloys containing 8 to 16mass % Zn under the repeated tensile loading.
en-copyright=
kn-copyright=

en-aut-name=SakakibaraAkira
en-aut-sei=Sakakibara
en-aut-mei=Akira
kn-aut-name=榊原精
kn-aut-sei=榊原
kn-aut-mei=精
aut-affil-num=1
ORCID=

en-aut-name=KanadaniTeruto
en-aut-sei=Kanadani
en-aut-mei=Teruto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=KaneedaToshiaki
en-aut-sei=Kaneeda
en-aut-mei=Toshiaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=HosokawaNorio
en-aut-sei=Hosokawa
en-aut-mei=Norio
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=2
en-affil=
kn-affil=Okayama University of Science

affil-num=3
en-affil=
kn-affil=Okayama University of Science

affil-num=4
en-affil=
kn-affil=Okayama University of Science
END

start-ver=1.4
cd-journal=joma
no-vol=24
cd-vols=
no-issue=2
article-no=
start-page=99
end-page=112
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19900329
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Parallel Skyline Method using Two Dimensional Array
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This paper presents an effective solver for a large sparse set of linear algebraic equations, which appears at the application of the finite element and the finite difference methods in engineering field. Proposed method is a family of SKYLINE METHOD, and for faster computation on the vector processors the original skyline is modified with respect to following three items; the use of inner products of matrix operations, the removal of unnecessary numerical operations and the introduction of two-dimensional array for storing the data of coefficient matrix.
en-copyright=
kn-copyright=

en-aut-name=TaniguchiTakeo
en-aut-sei=Taniguchi
en-aut-mei=Takeo
kn-aut-name=谷口健男
kn-aut-sei=谷口
kn-aut-mei=健男
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=FujiwaraKohji
kn-aut-sei=Fujiwara
kn-aut-mei=Kohji
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Engineering Science

affil-num=2
en-affil=
kn-affil=Department of Civil Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=2
article-no=
start-page=69
end-page=80
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1991
dt-pub=19910328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A Basic Study on Nonlinear Sound Propagation by Finite Element Simulation
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A finite element approach to the calculation of nonlinear sound propagation is proposed. Under the assumption of a weak nonlinearity, a linearized one-dimensional equation is considered. The equation is discretized in space, and is then solved for time by using Newmark-β integration scheme, in which a numerical damping is devised. Some numerical demonstrations are made for the nonlinear sound propagation of a single-shot pulse in air. It is shown that the shock wave propagation is stably and accurately simulated by the introduction of the numerical damping.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=TsuchiyaTakao
kn-aut-sei=Tsuchiya
kn-aut-mei=Takao
aut-affil-num=1
ORCID=

en-aut-name=KagawaYukio
en-aut-sei=Kagawa
en-aut-mei=Yukio
kn-aut-name=加川幸雄
kn-aut-sei=加川
kn-aut-mei=幸雄
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Graduate School of Natural Science and Technology

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=2
article-no=
start-page=81
end-page=93
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1991
dt-pub=19910328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Analysis of Superconducting Microstructures: Formulation
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Numerical methods for the analysis of the proximity effect in superconducting microstructures in the dirty limit are formulated on the basis of the finite element method. One- and two-dimensional cases are considered and third order Hermite shape functions are used. The results are also applicable to investigations of electronic states in semiconductor superlattice structures.
en-copyright=
kn-copyright=

en-aut-name=TotsujiHiroo
en-aut-sei=Totsuji
en-aut-mei=Hiroo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=2
article-no=
start-page=95
end-page=113
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1991
dt-pub=19910328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Analysis of Superconducting Microstructures: Critical Temperature of Two-Dimensional Structures
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Critical temperatures of two-dimensional microstructures with superconducting proximity effect in the dirty limit are evaluated for various geometrical constructions. As a numerical method, the finite element method is applied. Guidelines in estimating critical temperatures are given for the case where the decay of superconducting order parameter is either sufficiently slow or fast in comparison with the scale length of the structure.
en-copyright=
kn-copyright=

en-aut-name=TotsujiHiroo
en-aut-sei=Totsuji
en-aut-mei=Hiroo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=IshikuraSatoshi
kn-aut-sei=Ishikura
kn-aut-mei=Satoshi
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=TakayamaNorihisa
kn-aut-sei=Takayama
kn-aut-mei=Norihisa
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=3
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=2
article-no=
start-page=115
end-page=122
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1991
dt-pub=19910328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Nested Dissection Method on Transputer
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Nested dissection method is an elimination method for a set of linear algebraic equations with minimum fillins. Physically it divides a domain into four subdomains, and each subdomain is again divided into four. This procedure is repeated till all nodes are included in some subdomains. Using this characteristic, the authors examine the efficiency of the method on the transputer.
en-copyright=
kn-copyright=

en-aut-name=TaniguchiTakeo
en-aut-sei=Taniguchi
en-aut-mei=Takeo
kn-aut-name=谷口健男
kn-aut-sei=谷口
kn-aut-mei=健男
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=IrieHirotsugu
kn-aut-sei=Irie
kn-aut-mei=Hirotsugu
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Engineering Science

affil-num=2
en-affil=
kn-affil=Department of Civil Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=2
article-no=
start-page=123
end-page=133
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1991
dt-pub=19910328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Mesh Generation for Convex 3-Dimensional Domain
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The aim of this investigation is the proposal of 3D mesh generation method based on the Delaunay triangulation. The method is valid for the finite element modelling of any convex 3D domain into tetrahedra with optimum geometrical configuration. This paper includes the mathematical background of the mesh generation method, its detail, proposal of some efficient tools for faster and more rigorous computations, and some examples of the mesh generation.
en-copyright=
kn-copyright=

en-aut-name=TaniguchiTakeo
en-aut-sei=Taniguchi
en-aut-mei=Takeo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=OhtaChikashi
en-aut-sei=Ohta
en-aut-mei=Chikashi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Engineering Science

affil-num=2
en-affil=
kn-affil=Department of Civil Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=43
cd-vols=
no-issue=
article-no=
start-page=27
end-page=31
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2009
dt-pub=200901
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Experimental Conditions for Observation of ThermodynamicInstability and Critical Point of Fine Particle (Dusty) Plasmas
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=When the Coulomb coupling between fine particles becomes sufficiently strong in fine particle plasmas, the isothermal compressibility of the whole system diverges and we have a phase separation and an associated critical point. Experimental conditions of fine particle plasmas, densities and temperatures of components and the fine particle size, are obtained corresponding to characteristic parameters around the critical point and the dependency on ion species and other factors is discussed.
en-copyright=
kn-copyright=

en-aut-name=TotsujiHiroo
en-aut-sei=Totsuji
en-aut-mei=Hiroo
kn-aut-name=東辻浩夫
kn-aut-sei=東辻
kn-aut-mei=浩夫
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Graduate School of Natural Science and Technology, Okayama University
END

start-ver=1.4
cd-journal=joma
no-vol=43
cd-vols=
no-issue=
article-no=
start-page=61
end-page=74
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2009
dt-pub=200901
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Human Interface Technology for Operation Support of LargeSized Crane
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In this research, a Human Interface system is designed intended to mobile crane. The intervention of human is unavoidable to attain the high performance of electro mechanical system. As is known, crane operation is complicated. Recently, the decrease of expert person induced crane accident. So in near future, it is required a partial automation of crane operation and human support technology. We are aiming at the development of the operation support system for a crane. In this research, development of the hydro mechanical models representing both of static and dynamics movements are made. Further, actual experimental data of operating mobile crane, which are electrical signal data and three-dimension (3D) position of moving load is measured. The actual operating data are compared with the model and it is found that the developed electromechanical model can explain the behaviors of actual data.
en-copyright=
kn-copyright=

en-aut-name=KawamuraMao
en-aut-sei=Kawamura
en-aut-mei=Mao
kn-aut-name=川村真央
kn-aut-sei=川村
kn-aut-mei=真央
aut-affil-num=1
ORCID=

en-aut-name=KonishiMasami
en-aut-sei=Konishi
en-aut-mei=Masami
kn-aut-name=小西正躬
kn-aut-sei=小西
kn-aut-mei=正躬
aut-affil-num=2
ORCID=

en-aut-name=YamagataKatuki
en-aut-sei=Yamagata
en-aut-mei=Katuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=ShimomuraKoichi
en-aut-sei=Shimomura
en-aut-mei=Koichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Dept. of Electrical and Electronic Engineering Okayama University

affil-num=2
en-affil=
kn-affil=Dept. of Electrical and Electronic Engineering Division of Industrial Innovation Science The Graduate School of Natural Science and Technology Okayama University

affil-num=3
en-affil=
kn-affil=Kobelco Cranes co., Ltd

affil-num=4
en-affil=
kn-affil=Kobelco Cranes co., Ltd
END

start-ver=1.4
cd-journal=joma
no-vol=43
cd-vols=
no-issue=
article-no=
start-page=93
end-page=98
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2009
dt-pub=200901
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Predictor Order and Error Distribution of MMAE Predictors for Lossless Image Coding
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This paper investigates the relation between error distribution and predictive order of minimum mean abusolute error predictors (MMAE predictors) designed for lossless coding of grayscale images. Design of MMAE predictors reduces to the linear programming problem. Let k be the number of coefficients in a predictor (predictor order), we imagine that predictor order k may have a distribution shaping effect. Main purpose of this paper is to ensure that k has such an effect.
en-copyright=
kn-copyright=

en-aut-name=UenoHirokazu
en-aut-sei=Ueno
en-aut-mei=Hirokazu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=MorikawaYoshitaka
en-aut-sei=Morikawa
en-aut-mei=Yoshitaka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Graduate School of Natural Science and Technology, Okayama University

affil-num=2
en-affil=
kn-affil=Graduate School of Natural Science and Technology, Okayama University
END

start-ver=1.4
cd-journal=joma
no-vol=29
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=6
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1994
dt-pub=19941130
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Scribing of Ceramie Circuit Board with Q-Switched Nd：YAG Laser
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Scribing of copper coated alumina ceramic board with Q-switched YAG laser used for the maskless direct patterning of circuit　board is experimentally investigated, which leads to efficient production of trial circuit board. Better dividing of alumina circuit board 655μm in thickness can be attained by the scribing of about 100μm depth. Higher repetition frequency of laser irradiation leads to smaller notch angle and lower breaking load.
en-copyright=
kn-copyright=

en-aut-name=UnoYoshiyuki
en-aut-sei=Uno
en-aut-mei=Yoshiyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=KubotaShin-ichiro
en-aut-sei=Kubota
en-aut-mei=Shin-ichiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=YokomizoSeiichi
en-aut-sei=Yokomizo
en-aut-mei=Seiichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=OgataKojiro
en-aut-sei=Ogata
en-aut-mei=Kojiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=TadaNobuhiko
en-aut-sei=Tada
en-aut-mei=Nobuhiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=2
en-affil=
kn-affil=Industrial Technology Center of Okayama Prefecture

affil-num=3
en-affil=
kn-affil=Industrial Technology Center of Okayama Prefecture

affil-num=4
en-affil=
kn-affil=Hitachi Construction Machinery Co., Ltd

affil-num=5
en-affil=
kn-affil=Hitachi Construction Machinery Co., Ltd
END

start-ver=1.4
cd-journal=joma
no-vol=29
cd-vols=
no-issue=1
article-no=
start-page=23
end-page=34
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1994
dt-pub=19941130
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Study on Water Quality of Surface Runoff and Groundwater Runoff on the Basis of Separation by a Numerical Filter
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In this study we investigated the water quality of surface runoff and groundwater runoff from the basins of the Yodo River and the Asahi River based on that separated by a numerical filter. The water quality of the surface runoff is greatly different from the groundwater runoff. The tendency of concentration change in accordance with river discharges is different from each other. The water qtiality of groundwater runoff changes with river discharges clockwise in many cases. The differences of COD and SS originating from those of population and industrial activities in each basin are found in the lower SS concentrations of the surface runoff and the COD cencentrations of the groundwater runoff. The nutrients and chlorine ion were investigated, too.
en-copyright=
kn-copyright=

en-aut-name=KawaraOsami
en-aut-sei=Kawara
en-aut-mei=Osami
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=FukumotoKohji
kn-aut-sei=Fukumoto
kn-aut-mei=Kohji
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Environmental and Civil Engineering, Faculty of Environmental Science and Technology

affil-num=2
en-affil=
kn-affil=Tottori Prefectural Office
END

start-ver=1.4
cd-journal=joma
no-vol=31
cd-vols=
no-issue=2
article-no=
start-page=53
end-page=60
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1997
dt-pub=19970328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Plant Layout Method Considering Material Handling Cost and Maintainability
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This paper presents a method using simulated annealing(SA) and genetic algorithm(GA) to solve the plant layout problem in which the layout is evaluated by material handling cost and maintainability. In the former study about facility layout problem, it was either the minimization of the objeective function consisting of transport cost or the maximization of the objective function consisting of closeness rating. In this paper, both transport cost and maintainability were included in the objective function to be minimized. The plant layout problem, this paper proposes the heuristic procedures to obtain a suboptimal layout solution by combining SA with GA. From the simulation by computer, it concluded that the method which SA is combined with GA is more efficient than the method which utilizes SA and GA independently.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=FujiharaYutaka
kn-aut-sei=Fujihara
kn-aut-mei=Yutaka
aut-affil-num=1
ORCID=

en-aut-name=OsakiHirokazu
en-aut-sei=Osaki
en-aut-mei=Hirokazu
kn-aut-name=大崎紘一
kn-aut-sei=大崎
kn-aut-mei=紘一
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Matsue National College of Technology, Department of Control Engineering

affil-num=2
en-affil=
kn-affil=Department of System Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=31
cd-vols=
no-issue=2
article-no=
start-page=61
end-page=65
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1997
dt-pub=19970328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A Method of Shape Recognition Using Geometry Information
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=At present, the two dimensional CAD systems which are used to make drawings go around widely. But in order to use design data at the lower stream of production process, the replacement from the two dimensional CAD systems to the three dimensional CAD systems have started. Accordingly it is dimensional drawings for the three dimensional shapes. And it is also necessary to store them in the three dimensional CAD systems. And in the studying of the machine vision which is often used as "Eyes of robot" , it is being studied the method to recognize the three dimensional objects from the two dimensional image. This is the problem about data exchange, too. Therefore in this report, we propose the method to exchange the plural two dimensional elements of figure from image relations between elements were found from reference of the element coordinates. Next, the three dimensional shapes were reasoned from reference of the knowledge (for corner, etc) prepared beforehand. Then that data were exchanged to the three dimensional CAD data. We report one example about this method.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=YamadaMitsuru
kn-aut-sei=Yamada
kn-aut-mei=Mitsuru
aut-affil-num=1
ORCID=

en-aut-name=OsakiHirokazu
en-aut-sei=Osaki
en-aut-mei=Hirokazu
kn-aut-name=大崎紘一
kn-aut-sei=大崎
kn-aut-mei=紘一
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Industrial Technology Center of Okayama Prefecture

affil-num=2
en-affil=
kn-affil=Department of Systems Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=31
cd-vols=
no-issue=2
article-no=
start-page=67
end-page=72
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1997
dt-pub=19970328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Price Determination Method Based on Price Elasticity
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In this paper, we propose the price determination method using the parameter of the price elasticity that shows the relation between price and demand. Firstly, the state of the price elasticity is examined under the condition that the relation between price and demand are assumed by the inverse proportional function, the linear function and the quadratic function. Secondly, the profit is estimated for each product by break even point analysis. And the price is determined under the condition that the relation between the demand and price is shown by one of three　demand-pridce functions above mentioned.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=LiZhenzi
kn-aut-sei=Li
kn-aut-mei=Zhenzi
aut-affil-num=1
ORCID=

en-aut-name=OsakiHirokazu
en-aut-sei=Osaki
en-aut-mei=Hirokazu
kn-aut-name=大崎紘一
kn-aut-sei=大崎
kn-aut-mei=紘一
aut-affil-num=2
ORCID=

en-aut-name=KajiharaYasuhiro
en-aut-sei=Kajihara
en-aut-mei=Yasuhiro
kn-aut-name=梶原康博
kn-aut-sei=梶原
kn-aut-mei=康博
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Systems Engineering

affil-num=2
en-affil=
kn-affil=Department of Systems Engineering

affil-num=3
en-affil=
kn-affil=The Graduate School of Natural Science and Technology
END

start-ver=1.4
cd-journal=joma
no-vol=33
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=4
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1998
dt-pub=19981130
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Effect of Solute Clusters on Low Temperature Aging in Dilute Al-Ag Alloys
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Aging of diolute Al-Ag alloys after quenching from low temperatures were studied mainly by electrical resistometry. Maximum resistivity observed in the aging curve of specimens quenched from high temeperature disappeared when the quenching temperature was lowered to 473 or 453K. When the quenching temperature was lowered further to 423K or lower, however, maximum resistivity reappeared. At the temperature lower than or equal to 423K but higher than the GP zone solvus, the alloys were not homogeneous but had clusters of solute atoms or fluctuation of solute concentration. Inhomogeneous distribution of solute atoms may affect the aging behavior after quenching from that temperature.
en-copyright=
kn-copyright=

en-aut-name=SakakibaraAkira
en-aut-sei=Sakakibara
en-aut-mei=Akira
kn-aut-name=榊原精
kn-aut-sei=榊原
kn-aut-mei=精
aut-affil-num=1
ORCID=

en-aut-name=KanadaniTeruto
en-aut-sei=Kanadani
en-aut-mei=Teruto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Eengineering

affil-num=2
en-affil=
kn-affil=Department of Mechanical Engineering, Okayama University of Science
END

start-ver=1.4
cd-journal=joma
no-vol=33
cd-vols=
no-issue=1
article-no=
start-page=5
end-page=17
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1998
dt-pub=19981130
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Rigid-Plastic Deformation of Inhomogeneous Material with Elliptic Inclusions Sliding along Boundary
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The influence of the slip between the inclusion and the matrix during the plastic deformation of inhomogeneous material with elliptic inclusions is investigated. The material is assumed to be rigid-plastic. The boundary slip region is modeled by assuming lower yield stress for the thin boundary region than those of the inclusion and the matrix. The rigid-plastic finite element method is used for the numerical calculation under the plane strain condition. The effects of the aspect ratio of the inclusion, the yield stress of the boundary region, and the volume fraction of the inclusion on the deformation mode are studied. The patterns of the strain concentration and the averaged flow stress of the inhomogeneous material are also discussed. The results may be helpful for understanding creep or superplastic deformation of metals with inclusions.
en-copyright=
kn-copyright=

en-aut-name=AbeTakeji
en-aut-sei=Abe
en-aut-mei=Takeji
kn-aut-name=阿部武治
kn-aut-sei=阿部
kn-aut-mei=武治
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=NamikoshiRyuji
kn-aut-sei=Namikoshi
kn-aut-mei=Ryuji
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=NagayamaNoriyuki
kn-aut-sei=Nagayama
kn-aut-mei=Noriyuki
aut-affil-num=3
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=TakanoYasuju
kn-aut-sei=Takano
kn-aut-mei=Yasuju
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering and Cooperative Research Center, Okayama University

affil-num=2
en-affil=
kn-affil=Shikoku Instrumentation Co., Ltd.

affil-num=3
en-affil=
kn-affil=Industrial Technology Center of Okayama Prefecture

affil-num=4
en-affil=
kn-affil=Kobe Steel, Ltd.
en-keyword=Plasticity
kn-keyword=Plasticity
en-keyword=Composite Material
kn-keyword=Composite Material
en-keyword=Sliding Inclusions
kn-keyword=Sliding Inclusions
en-keyword=Rigid-Plastic Deformation
kn-keyword=Rigid-Plastic Deformation
en-keyword=Finite Element Method
kn-keyword=Finite Element Method
END

start-ver=1.4
cd-journal=joma
no-vol=33
cd-vols=
no-issue=1
article-no=
start-page=59
end-page=64
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1998
dt-pub=19981130
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Facility Layout Linked with Scheduling Problem by Genetic Algorithm and Tabu Search
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In this paper, we propose a method to solve simultaneously facility layout problem and scheduling problem. About a initial random layout planning, the production scheduling and the transportation scheduling of AGV are obtained by using priority rules. From the obtained transportation scheduling, the critical transportation and the closeness rating are obtained. Facility layout is renewed by the combined procedure of genetic algorithm and tabu search in order to reduce the material handling cost. By using this renewed facility layout, the production scheduling and the transportation scheduling of AGV are also revised until no further improvement is possible.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=FujiharaYutaka
kn-aut-sei=Fujihara
kn-aut-mei=Yutaka
aut-affil-num=1
ORCID=

en-aut-name=OsakiHirokazu
en-aut-sei=Osaki
en-aut-mei=Hirokazu
kn-aut-name=大崎紘一
kn-aut-sei=大崎
kn-aut-mei=紘一
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Matsue National College of Technology, Department of Control Engineering

affil-num=2
en-affil=
kn-affil=Department of Systems Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=31
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=3
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1996
dt-pub=19961227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Precipitation Hardening and Effect of Surface Layer on the Fatigue Strength of an Al-1.2mass% Si Alloy
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Dependence of precipitation hardening on the distance from specimen surface and effect of the surface layer on the fatigue strength of an Al-1.2mass% Si alloy were studied by microhardness test, transmission electron microscopy and repeated tension fatigue test. Rate of age-hardening was slower in the vicinity of surface than in the interior of the specimen aged at 423K after quenching from 853K. The result of the electron microscopy was that the size ot Si precipitates formed in the vicinity of surface was smaller than in the interior of specimen aged for 6ks at 423K. This difference was considered to be caused by the effect of the surface as vacancy sinks which slowed down the growh of Si precipitates in the vicinity of the specimen surface. A specimen surface layer whose hardness was different from that of the specimen interior was formed at the vicinity of the surface when the specimen was aged at relatively low temperature such as 423K. The fatigue strength in repeated tensile test ot the specimen did not depend on whether the specimen surface layer was present or not.
en-copyright=
kn-copyright=

en-aut-name=SakakibaraAkira
en-aut-sei=Sakakibara
en-aut-mei=Akira
kn-aut-name=榊原精
kn-aut-sei=榊原
kn-aut-mei=精
aut-affil-num=1
ORCID=

en-aut-name=NakagawaKeiyu
en-aut-sei=Nakagawa
en-aut-mei=Keiyu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=HosokawaNorio
en-aut-sei=Hosokawa
en-aut-mei=Norio
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=KanadaniTeruto
en-aut-sei=Kanadani
en-aut-mei=Teruto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical engineering

affil-num=2
en-affil=
kn-affil=Okayama University of Science

affil-num=3
en-affil=
kn-affil=Okayama University of Science

affil-num=4
en-affil=
kn-affil=Okayama University of Science
END

start-ver=1.4
cd-journal=joma
no-vol=32
cd-vols=
no-issue=1-2
article-no=
start-page=7
end-page=14
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1998
dt-pub=19980420
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Comparative Considerations of Eliminating Method for Power Line Interference in Electrocardiography
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This paper describes a new measurment method and principle of power line interference elimination in ECG signal using inverse loop and AC power line configuration (APC). First, we considered that magnetic induction effect not only depend on a conductive loop area that formed by shielded wires that connect the object and amplifier but also effect of body area effective must be considered. It is simple and useful because interference can be eliminated to very small value show that the condition and it can be applied in a real ECG signal recording. Second, results show that the contribution of displacement currents into the object especially APC in vertical configuration is smaller than it in other one. Because this method is so easy that it is convenient to be used to understand some aspects of power line interference elimination phenomenon. Hence we expect that this method can be used as one of improvement method in measurement system of ECG signal recording.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=Adli
kn-aut-sei=Adli
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=YamamotoYoshitake
en-aut-sei=Yamamoto
en-aut-mei=Yoshitake
kn-aut-name=山本尚武
kn-aut-sei=山本
kn-aut-mei=尚武
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department ot Mechanical Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=32
cd-vols=
no-issue=1-2
article-no=
start-page=23
end-page=41
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1998
dt-pub=19980420
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Structure of Yukawa (Dusty Plasma) Mixtures
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Parameters characterizing the structure ot confined Yukawa system are estimated for 'dusty plasmas', clouds of charged macroscopic particles formed near the boundary between plasma and the sheath and leviated by negatively biased electrode. When we have dust particles with different ratios of charge to mass, they form a two-dimensional Yukawa mixture or separate two-dimensional one-companent Yukawa systems, depending on the charge density in the sheath and number density of dust particles. In order to provide a basis for numerical simulations on Yukawa mixtures including Coulombic case, we summarize mathematical expressions necessary for molecular dynamics.
en-copyright=
kn-copyright=

en-aut-name=TotsujiHiroo
en-aut-sei=Totsuji
en-aut-mei=Hiroo
kn-aut-name=東辻浩夫
kn-aut-sei=東辻
kn-aut-mei=浩夫
aut-affil-num=1
ORCID=

en-aut-name=KishimotoTokunari
en-aut-sei=Kishimoto
en-aut-mei=Tokunari
kn-aut-name=岸本篤也
kn-aut-sei=岸本
kn-aut-mei=篤也
aut-affil-num=2
ORCID=

en-aut-name=TotsujiChieko
en-aut-sei=Totsuji
en-aut-mei=Chieko
kn-aut-name=東辻千枝子
kn-aut-sei=東辻
kn-aut-mei=千枝子
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=3
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=32
cd-vols=
no-issue=1-2
article-no=
start-page=43
end-page=54
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1998
dt-pub=19980420
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Numerical Analysis of a Model for Isolated Hydrogen Bond
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Large isotope effects have been observed in various kinds of hydrogen bonded ferro / antiferroelectrics. In clariflying their origin, themodynamic properties of the hydrogen bond are of essential importance. Two numerical methods are applied to analyze the model for isolated hydrogen bond at finite temperatures and the results of excited energy levels of proton or deuteron are examined. It is found that the second excited state is not far enough from the first excited state to be neglected discussing themodynamic properties of hydrogen especially in their ordered states.
en-copyright=
kn-copyright=

en-aut-name=TotsujiChieko
en-aut-sei=Totsuji
en-aut-mei=Chieko
kn-aut-name=東辻千枝子
kn-aut-sei=東辻
kn-aut-mei=千枝子
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=MatsubaraTakeo
kn-aut-sei=Matsubara
kn-aut-mei=Takeo
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Institute for Condensed Matter Theory
END

start-ver=1.4
cd-journal=joma
no-vol=33
cd-vols=
no-issue=2
article-no=
start-page=9
end-page=17
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1999
dt-pub=19990427
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Rarefied Gas Flow Over a Solid Surface with Adsorbates
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The molecular dynamics study is applied for interaction of the gas molecule with the solid wall to analyse the flow of a rarefied gas between two wall. The wall consisting of Pt molecules is considered to be in a state of physical adsorbates. Two problems are considered : one is the flow problem and the other is the temperature problem. It is found that the tangential momentum accommodation coefficient is about 0.8 when the relative speed ratio of the two walls is unity, while it decreases with increasing Knudsen number when the relative wall speed ratio is 5.0. It shown that the temperature accommodation coefficient is about 0.85 at 300K wall, 0.75 at 450K wall, and 0.69 at 600K wall.
en-copyright=
kn-copyright=

en-aut-name=YamamotoKyoji
en-aut-sei=Yamamoto
en-aut-mei=Kyoji
kn-aut-name=山本恭二
kn-aut-sei=山本
kn-aut-mei=恭二
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=33
cd-vols=
no-issue=2
article-no=
start-page=19
end-page=24
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1999
dt-pub=19990427
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Small Type Hydrocyclone with a Perforated Inner Cylinder
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A new type of hydrocyclone with a perforated inner cylinder is tested experimentally to study its performance for liquid-solid separation. The size of the cyclone is small so that it may be effective for small particle separation. Two types of the inner cylinder were made : the one has 39.5% void fraction of the perforated surface and the other has 73.5% . The mean particle diameter is 4.5 μ m. It is found that the pressure loss of the cyclone with the inner cylinder is reduced by about 25% compared with that of the ordinary type. The new type cyclone has better separation efficiency.
en-copyright=
kn-copyright=

en-aut-name=YamamotoKyoji
en-aut-sei=Yamamoto
en-aut-mei=Kyoji
kn-aut-name=山本恭二
kn-aut-sei=山本
kn-aut-mei=恭二
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=JiaoXuecheng
kn-aut-sei=Jiao
kn-aut-mei=Xuecheng
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=JiaoXuezhen
kn-aut-sei=Jiao
kn-aut-mei=Xuezhen
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=2
en-affil=
kn-affil=The Graduate School of Natural Science and Technology

affil-num=3
en-affil=
kn-affil=lnstitute of Harbin Architectural and Civil Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=33
cd-vols=
no-issue=2
article-no=
start-page=25
end-page=37
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1999
dt-pub=19990427
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A Numerical Study on the Performance of an Open-type Flat-plate Solar Collector
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A set mathematical models was developed for predicting the performance of an open-type flat-plate solar collector, and solved numerically through an implicit difference method. The effects of various parameters on the absorption of solar energy for the collector were investigated. The results showed that the solar energy absorptance of the open-type flat-plate collector was relatively high especially for the region where the weather was humid and hot, and there were an optimum length and an optimum tilt angle for the absorbing plate on which the collector could obtain the highest solar energy absorptance. It was found that the latent heat flux of water evaporation could be 5 to 15 times larger than the sensible heat flux. The effects of the magnitude of the solar incident flux, the atmospheric humidity, the atmospheric temperature, the absorbing plate tilt angle, and water film thickness on the temperature rising of the water film were clarified in numerical quantities. The increase of the solar incident flux, the atmospheric humidity or the atmospheric temperature also resulted in a rise in the energy absorptance of the collector.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=SongBaoyin
kn-aut-sei=Song
kn-aut-mei=Baoyin
aut-affil-num=1
ORCID=

en-aut-name=InabaHideo
en-aut-sei=Inaba
en-aut-mei=Hideo
kn-aut-name=稲葉英男
kn-aut-sei=稲葉
kn-aut-mei=英男
aut-affil-num=2
ORCID=

en-aut-name=HoribeAkihiko
en-aut-sei=Horibe
en-aut-mei=Akihiko
kn-aut-name=堀部明彦
kn-aut-sei=堀部
kn-aut-mei=明彦
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=2
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=3
en-affil=
kn-affil=Department of Mechanical Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=33
cd-vols=
no-issue=2
article-no=
start-page=85
end-page=89
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1999
dt-pub=19990427
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A Method of Shape Recognition Using CAD Data and Vertex-Dictionary
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=We reason the circumstances around the three-dimensional vertex from the information about the intersection point in the two-dimensional image data inputted from a camera on the premise that we use this method as the eye ot the robot. In this method, we use the Vertex-Dictionary. We make the Vertex-Dictionary by calculation from CAD data of object figure (these data are already known) and the position data of the point of view. This dictionary includes the data of position and relations of connect surface etc. about a vertex. We get the data of three-dimensional vertex by comparison the data of two-dimensional intersection point in image data and Vertex-Dictionary. And we get the three-dimensional object by reasoning about the information of circumstances of all vertexes. Then we can recognize the three-dimensional object from image data. In this report, we explain the process to calculate the Vertex-Dictionary and some examples about this method.
en-copyright=
kn-copyright=

en-aut-name=YamadaMitsuru
en-aut-sei=Yamada
en-aut-mei=Mitsuru
kn-aut-name=山田充
kn-aut-sei=山田
kn-aut-mei=充
aut-affil-num=1
ORCID=

en-aut-name=OsakiHirokazu
en-aut-sei=Osaki
en-aut-mei=Hirokazu
kn-aut-name=大崎紘一
kn-aut-sei=大崎
kn-aut-mei=紘一
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Systems Engineering

affil-num=2
en-affil=
kn-affil=Department of Systems Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=33
cd-vols=
no-issue=2
article-no=
start-page=105
end-page=110
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1999
dt-pub=19990427
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=An Analytical Method of Human Motion by Image Processing
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This paper deals with analytical method of human motion by image processing to make a model of the scooping process, Firstly, the scooping tool is the spoon, and while the scooping process is performing, the movement of the mouth center position and the spoon top position are measured by two cameras. As the amount of substance is over the uppermost area of the cup, the spoon is stuck obliquely into substance. Then the spoon is rotated and lifted up to the mouth. Secondly, we recognize the mouth center from the characteristic of the face image data and calculate the spoon top position to extract two points on the spoon handle from the time series images by two cameras. Finally, we describe the method of recognizing the coordinate of the mouth center and estimating the coordinate of the spoon top to analyse the scooping process.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=TokunagaShuichi
kn-aut-sei=Tokunaga
kn-aut-mei=Shuichi
aut-affil-num=1
ORCID=

en-aut-name=OsakiHirokazu
en-aut-sei=Osaki
en-aut-mei=Hirokazu
kn-aut-name=大崎紘一
kn-aut-sei=大崎
kn-aut-mei=紘一
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Takuma National College of Technology

affil-num=2
en-affil=
kn-affil=Department of system engineering
END

start-ver=1.4
cd-journal=joma
no-vol=44
cd-vols=
no-issue=
article-no=
start-page=13
end-page=23
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2010
dt-pub=201001
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Unified Computation of Strict Maximum Likelihood for Geometric Fitting
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A new numerical scheme is presented for computing strict maximum likelihood (ML) of geometric
fitting problems having an implicit constraint. Our approach is orthogonal projection of observations
onto a parameterized surface defined by the constraint. Assuming a linearly separable nonlinear constraint, we show that a theoretically global solution can be obtained by iterative Sampson error minimization. Our approach is illustrated by ellipse fitting and fundamental matrix computation. Our method also encompasses optimal correction, computing, e.g., perpendiculars to an ellipse and triangulating stereo images. A detailed discussion is given to technical and practical issues about our approach.
en-copyright=
kn-copyright=

en-aut-name=KanataniKenichi
en-aut-sei=Kanatani
en-aut-mei=Kenichi
kn-aut-name=金谷健一
kn-aut-sei=金谷
kn-aut-mei=健一
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=SugayaYasuyuki
kn-aut-sei=Sugaya
kn-aut-mei=Yasuyuki
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Computer Science Okayama University

affil-num=2
en-affil=
kn-affil=Department of Information and Computer Sciences Toyohashi University of Technology
END

start-ver=1.4
cd-journal=joma
no-vol=44
cd-vols=
no-issue=
article-no=
start-page=24
end-page=31
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2010
dt-pub=201001
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Improved Multistage Learning for Multibody Motion Segmentation
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=We present an improved version of the MSL method of Sugaya and Kanatani for multibody motion segmentation. We replace their initial segmentation based on heuristic clustering by an analytical computation based on GPCA, fitting two 2-D affine spaces in 3-D by the Taubin method. This initial segmentation alone can segment most of the motions in natural scenes fairly correctly, and the result is successively optimized by the EM algorithm in 3-D, 5-D, and 7-D. Using simulated and real videos, we demonstrate that our method outperforms the previous MSL and other existing methods. We also illustrate its mechanism by our visualization technique.
en-copyright=
kn-copyright=

en-aut-name=KanataniKenichi
en-aut-sei=Kanatani
en-aut-mei=Kenichi
kn-aut-name=金谷健一
kn-aut-sei=金谷
kn-aut-mei=健一
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=SugayaYasuyuki
kn-aut-sei=Sugaya
kn-aut-mei=Yasuyuki
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Computer Science Okayama University

affil-num=2
en-affil=
kn-affil=Department of Information and Computer Sciences Toyohashi University of Technology
END

start-ver=1.4
cd-journal=joma
no-vol=44
cd-vols=
no-issue=
article-no=
start-page=42
end-page=49
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2010
dt-pub=201001
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Hyperaccurate Ellipse Fitting without Iterations
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This paper presents a new method for fitting an ellipse to a point sequence extracted from images. It is widely known that the best fit is obtained by maximum likelihood. However, it requires iterations, which may not converge in the presence of large noise. Our approach is algebraic distance minimization; no iterations are required. Exploiting the fact that the solution depends on the way the scale is normalized, we analyze the accuracy to high order error terms with the scale normalization weight unspecified and determine it so that the bias is zero up to the second order. We demonstrate by experiments that our method is superior to the Taubin method, also algebraic
and known to be highly accurate.
en-copyright=
kn-copyright=

en-aut-name=KanataniKenichi
en-aut-sei=Kanatani
en-aut-mei=Kenichi
kn-aut-name=金谷健一
kn-aut-sei=金谷
kn-aut-mei=健一
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=RangrajanPrasanna
kn-aut-sei=Rangrajan
kn-aut-mei=Prasanna
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Computer Science Okayama University

affil-num=2
en-affil=
kn-affil=Department of Electrical Engineering Southern Methodist University
END

start-ver=1.4
cd-journal=joma
no-vol=29
cd-vols=
no-issue=1
article-no=
start-page=15
end-page=22
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1994
dt-pub=19941130
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Note on the Electronic Structure of C(60) Molecule
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A molecular orbital approach to the electronic structure of C(60) molecule is formulated on the basis of optimized bond orbital model and the stability of the truncated icosahedron structure is examined.
en-copyright=
kn-copyright=

en-aut-name=TotsujiChieko
en-aut-sei=Totsuji
en-aut-mei=Chieko
kn-aut-name=東辻千枝子
kn-aut-sei=東辻
kn-aut-mei=千枝子
aut-affil-num=1
ORCID=

en-aut-name=MatsubaraTakeo
en-aut-sei=Matsubara
en-aut-mei=Takeo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=ObuchiMasumi
en-aut-sei=Obuchi
en-aut-mei=Masumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Okayama University of Science

affil-num=3
en-affil=
kn-affil=Okayama University of Science
END

start-ver=1.4
cd-journal=joma
no-vol=45
cd-vols=
no-issue=
article-no=
start-page=27
end-page=35
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2011
dt-pub=201101
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Bundle Adjustment for 3-D Reconstruction: Implementation and Evaluation
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=We describe in detail the algorithm of bundle adjustment for 3-D reconstruction from multiple
images based on our latest research results. The main focus of this paper is on the handling of camera rotations and the efficiency of computation and memory usage when the number of variables is very large; an appropriate consideration of this is the core of the implementation of bundle adjustment. Computing the fundamental matrix from two views and reconstructing the 3-D structure from multiple views, we evaluate the performance of our algorithm and discuses technical issues of bundle adjustment implementation.
en-copyright=
kn-copyright=

en-aut-name=KanataniKenichi
en-aut-sei=Kanatani
en-aut-mei=Kenichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=SugayaYasuyuki
en-aut-sei=Sugaya
en-aut-mei=Yasuyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Computer Science Okayama University

affil-num=2
en-affil=
kn-affil=Department of Information and Computer Sciences Toyohashi University of Technology
END

start-ver=1.4
cd-journal=joma
no-vol=38
cd-vols=
no-issue=1-2
article-no=
start-page=39
end-page=59
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2004
dt-pub=200403
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Uncertainty Modeling and Geometric Inference
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=We investigate the meaning of "statistical methods" for geometric inference based on image feature points. Tracing back the origin of feature uncertainty to image processing operations, we discuss the implications of asymptotic analysis in reference to "geometric fitting" and "geometric model selection", We point out that a correspondence exists between the standard statistical analysis and the geometric inference problem. We also compare the capability of the "geometric AIC" and the "geometric MDL' in detecting degeneracy. Next, we review recent progress in geometric fitting techniques for linear constraints, describing the "FNS method", the "HEIV method", the "renormalization method", and other related techniques. Finally, we discuss the "Neyman-Scott problem" and "semiparametric models" in relation to geometric inference. We conclude that applications of statistical methods requires careful considerations about the nature of the problem in question.
en-copyright=
kn-copyright=

en-aut-name=KanataniKenichi
en-aut-sei=Kanatani
en-aut-mei=Kenichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Information Technology, Okayama University
END

start-ver=1.4
cd-journal=joma
no-vol=38
cd-vols=
no-issue=1-2
article-no=
start-page=61
end-page=71
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2004
dt-pub=200403
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Factorization without Factorization: Complete Recipe
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The Tomasi-Kanade factorization for reconstructing the 3-D shape of the feature points tracked through a video stream is widely regarded as based on factorization of a matrix by SVD (singular value decomposition). This paper points out that the core principle is the affine camera approximation to the imaging geometry and that SVD is merely one means of numerical computation. We first describe the geometric structure of the problem and then give a complete programming scheme for 3-D reconstruction.
en-copyright=
kn-copyright=

en-aut-name=KanataniKenichi
en-aut-sei=Kanatani
en-aut-mei=Kenichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=SugayaYasuyuki
en-aut-sei=Sugaya
en-aut-mei=Yasuyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Information Technology, Okayama University

affil-num=2
en-affil=
kn-affil=Department of Information Technology, Okayama University
END

start-ver=1.4
cd-journal=joma
no-vol=38
cd-vols=
no-issue=1-2
article-no=
start-page=73
end-page=89
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2004
dt-pub=200403
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Combinatorial Boundary Tracking of a 3D Lattice Point Set
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Boundary tracking and surface generation are ones of main topological topics for three-dimensional digital image analysis. However, there is no adequate theory to make relations between these different topological properties in a completely discrete way. In this paper, we present a new boundary tracking algorithm which gives not only a set of border points but also the surface structures by using the concepts of combinatorial/algebraic topologies. We also show that our boundary becomes a triangulation of border points (in the sense of general topology), that is, we clarify relations between border points and their surface structures.
en-copyright=
kn-copyright=

en-aut-name=KenmochiYukiko
en-aut-sei=Kenmochi
en-aut-mei=Yukiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=ImiyaAtsushi
en-aut-sei=Imiya
en-aut-mei=Atsushi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Information Technology, Okayama University

affil-num=2
en-affil=
kn-affil=National Institute of Informatics Department of Informatics, The Graduate University for Advanced Studies
END

start-ver=1.4
cd-journal=joma
no-vol=38
cd-vols=
no-issue=1-2
article-no=
start-page=97
end-page=100
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2004
dt-pub=200403
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=The cytotoxicity of Bacillus thuringiensis subsp. coreanensis A2316 strain against the human leukemic T cell
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Bacillus thuringiensis subsp. coreanensis A2316 is a newly isolated strain from Yonakunijima Island in Japan. It produces the proteinaceous inclusion body (crystal) which has no insecticidal and hemolytic activities. When the crystal proteins were digested by proteinase K, they exhibited the strong cytotoxicity against human leukemic T cell, MOLT-4. The proteinase K-digested A2316 crystal proteins have little damage upon the cell membrane of MOLT-4, suggesting that the cell death of MOLT-4 was induced through a mechanism other than the colloid-osmotic swelling and cell lysis as caused by hitherto known B. thuringiensis crystal proteins. The 29-kDa polypeptide proved to be an active component of the proteinase K-digested A2316 crystal proteins. EC(50) of the purified 29-kDa polypeptide was 0.0579 μg/ml. The N-terminal amino acid sequence of the 29-kDa polypeptide was identical with that of p29 produced by B. thuringiensis A1519 strain and shared no significant homology with all the known proteins, suggesting that this polypeptide belong to a new family of B. thuringiensis crystal proteins.
en-copyright=
kn-copyright=

en-aut-name=YamagiwaMasashi
en-aut-sei=Yamagiwa
en-aut-mei=Masashi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=HiraoTaichi
en-aut-sei=Hirao
en-aut-mei=Taichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=KiyomiMasaaki
en-aut-sei=Kiyomi
en-aut-mei=Masaaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=AkaoTetsuyuki
en-aut-sei=Akao
en-aut-mei=Tetsuyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=MizukiEiichi
en-aut-sei=Mizuki
en-aut-mei=Eiichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=OhbaMichio
en-aut-sei=Ohba
en-aut-mei=Michio
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

en-aut-name=SakaiHiroshi
en-aut-sei=Sakai
en-aut-mei=Hiroshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Bioscience and Biotechnology Okayama University

affil-num=2
en-affil=
kn-affil=Department of Bioscience and Biotechnology Okayama University

affil-num=3
en-affil=
kn-affil=Department of Bioscience and Biotechnology, Faculty of Engineering, Okayama University

affil-num=4
en-affil=
kn-affil=Biotechnology and Food Research Institute Fukuoka Industrial Technology Center

affil-num=5
en-affil=
kn-affil=Biotechnology and Food Research Institute Fukuoka Industrial Technology Center

affil-num=6
en-affil=
kn-affil=Graduate School of Agriculture Kyushu University

affil-num=7
en-affil=
kn-affil=Department of Bioscience and Biotechnology Okayama University
END

start-ver=1.4
cd-journal=joma
no-vol=37
cd-vols=
no-issue=1
article-no=
start-page=15
end-page=23
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2002
dt-pub=200211
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=For Geometric Inference from Images, What Kind of Statistical Model Is Necessary?
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In order to facilitate smooth communications with researchers in other fields including statistics, this paper investigates the meaning of "statistical methods" for geometric inference based on image feature points, We point out that statistical analysis does not make sense unless the underlying "statistical ensemble" is clearly defined. We trace back the origin of feature uncertainty to image processing operations for computer vision in general and discuss the implications of asymptotic analysis for performance evaluation in reference to "geometric fitting", "geometric model selection", the "geometric AIC", and the "geometric MDL". Referring to such statistical concepts as "nuisance parameters", the "Neyman-Scott problem", and "semiparametric models", we point out that simulation experiments for performance evaluation will lose meaning without carefully considering the assumptions involved and intended applications.
en-copyright=
kn-copyright=

en-aut-name=KanataniKenichi
en-aut-sei=Kanatani
en-aut-mei=Kenichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Information Technology, Okayama University
END

start-ver=1.4
cd-journal=joma
no-vol=37
cd-vols=
no-issue=1
article-no=
start-page=25
end-page=32
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2002
dt-pub=200211
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Robust Image Matching under a Large Disparity
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=We present a new method for detecting point matches between two images without using any combinatorial search. Our strategy is to impose various local and non-local constraints as "soft" constraints by introducing their "confidence" measures via "mean-field approximations". The computation is a cascade of evaluating the confidence values and sorting according to them. In the end, we impose the "hard" epipolar constraint by RANSAC. We also introduce a model selection procedure to test if the image mapping can be regarded as a homography. We demonstrate the effectiveness of our method by real image examples.
en-copyright=
kn-copyright=

en-aut-name=KanazawaYasushi
en-aut-sei=Kanazawa
en-aut-mei=Yasushi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=KanataniKenichi
en-aut-sei=Kanatani
en-aut-mei=Kenichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Knowledge-based Information Engineering Toyohashi University of Technology

affil-num=2
en-affil=
kn-affil=Department of Information Technology Okayama University
END

start-ver=1.4
cd-journal=joma
no-vol=37
cd-vols=
no-issue=1
article-no=
start-page=41
end-page=49
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2002
dt-pub=200211
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Automatic Camera Model Selection for Multibody Motion Segmentation
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=We study the problem of segmenting independently moving objects in a video sequence. Several algorithms exist for classifying the trajectories of the feature points into independent motions, but the performance depends on the validity of the underlying camera imaging model. In this paper, we present a scheme for automatically selecting the best model using the geometric AIC before the segmentation stage, Using real video sequences,
we confirm that the segmentation accuracy indeed improves if the segmentation is based on the selected model. We also show that the trajectory data can be compressed into low-dimensional vectors using the selected model. This is very effective in reducing the computation time for a long video sequence.
en-copyright=
kn-copyright=

en-aut-name=SugayaYasuyuki
en-aut-sei=Sugaya
en-aut-mei=Yasuyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=KanataniKenichi
en-aut-sei=Kanatani
en-aut-mei=Kenichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Information Technology, Okayama University

affil-num=2
en-affil=
kn-affil=Department of Information Technology, Okayama University
END

start-ver=1.4
cd-journal=joma
no-vol=37
cd-vols=
no-issue=2
article-no=
start-page=1
end-page=4
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2003
dt-pub=200303
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Serration in A l-Zn Alloys Containing a Small Amount of Fe
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Effect of addition of Fe on the occurrence of serration in Al-12mass%Zn alloys was investigated. Specimens aged at 293K for various periods after quenching from various temperatures (T(Q)), 398K to 823K, were tensile-tested at room temperature. Serration occurred more easily and more remarkably with decreasing T(Q) for as-quenched specimens: in the case that T(Q)=448K serration was observed both for the binary and Fe added alloys, while in the case that T(Q)=573K none of the three alloys showed serration. For the binary alloy serration was observed only when the aging period was short enough, but addition of Fe to the binary alloy prolonged the aging period where serration could be recognized. Aging rate measured by hardness was remarkably retarded with the increase of Fe addition. These results confirm the interpretation that the serration in Al-Zn alloy occurs in the early stage of aging where small GP zones or solute clusters are formed.
en-copyright=
kn-copyright=

en-aut-name=SakakibaraAkira
en-aut-sei=Sakakibara
en-aut-mei=Akira
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=KanadaniTeruto
en-aut-sei=Kanadani
en-aut-mei=Teruto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Dept. of Mechanical Engineering Okayama University

affil-num=2
en-affil=
kn-affil=Faculty of Engineering Okayama University of Science
END

start-ver=1.4
cd-journal=joma
no-vol=37
cd-vols=
no-issue=2
article-no=
start-page=5
end-page=12
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2003
dt-pub=200303
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Observation of Microscopic Deformation Behavior of Cork
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Cork is a material that has many characteristics, for instance, light weight, elasticity, insulation against heat, impermeability for liquid, and so forth. There are two types of cork, the natural and the agglomerated corks. In the present paper, compression tests of the natural and the agglomerated cork specimens were carried out. The compression test were done in various directions. Compressive stress was measured by a original compression apparatus, and stress-strain curves were obtained in various directions of the cork specimens. In the natural cork, there are differences between the radial and the non-radial direction. The recovery of dimensions after compression was also studied in respective directions. The structure of the deformed surface was observed by a scanning electron microscope.
en-copyright=
kn-copyright=

en-aut-name=AbeTakeji
en-aut-sei=Abe
en-aut-mei=Takeji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=SatoTakashi
en-aut-sei=Sato
en-aut-mei=Takashi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Graduate School of Natural Science and Technology, Okayama University

affil-num=2
en-affil=
kn-affil=Graduate School of Natural Science and Technology, Okayama University
END

start-ver=1.4
cd-journal=joma
no-vol=37
cd-vols=
no-issue=2
article-no=
start-page=45
end-page=60
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2003
dt-pub=200303
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Estimation of Ground Resisitivity Distribution Using 3D DRM Charge Simulation Modelling
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Resistivity distribution sounding of the non-homogeneous earth is important for electrical ground system design, geophysical prospecting and survey or monitoring the groundwater flow level. The previous paper presented that the direct inversion of the electric resistivity distribution in a domain is possible from the impedance data measured over the domain boundary using the dual reciprocity boundary element modelling in two-dimentional field [1]. The proposed inversion technique is extended to the distribution in three-dimensional space [2]. This technique is capable of inversion without iteration and meshing of the domain. Electric field with spatially varying conductivity is governed by Laplace equation, which is transformed into a Poisson-type expression with an inhomogeneous term involving the conductivity difference as a source term. Dual reciprocity method (DRM) is a technique for transforming the domain integral associated with the inhomogeneous term in Poisson equation into the boundary integral expression. The resistivity distribution in the field can thus be identified from the data observed over its boundary, for which some examples are demonstrated [2]. In this paper, the examination is extended to the case where only the data measured over the single surface is used for the inversion.
en-copyright=
kn-copyright=

en-aut-name=XuWei
en-aut-sei=Xu
en-aut-mei=Wei
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=ZhaoY.
en-aut-sei=Zhao
en-aut-mei=Y.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=HorikaneT.
en-aut-sei=Horikane
en-aut-mei=T.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=HayataT.
en-aut-sei=Hayata
en-aut-mei=T.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=TosujiH.
en-aut-sei=Tosuji
en-aut-mei=H.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=KagawaY.
en-aut-sei=Kagawa
en-aut-mei=Y.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

affil-num=1
en-affil=
kn-affil=Dept. of Electrical and Electronic Engineering, Okayama University

affil-num=2
en-affil=
kn-affil=Dept. of Electrical and Electronic Engineering, Okayama University

affil-num=3
en-affil=
kn-affil=Dept. of Electrical and Electronic Engineering, Okayama University

affil-num=4
en-affil=
kn-affil=Dept. of Electrical and Electronic Engineering, Okayama University

affil-num=5
en-affil=
kn-affil=Dept. of Electrical and Electronic Engineering, Okayama University

affil-num=6
en-affil=
kn-affil=Dept. of Electronics and Information Systems, Akita Prefectural Univ.
END

start-ver=1.4
cd-journal=joma
no-vol=37
cd-vols=
no-issue=2
article-no=
start-page=61
end-page=66
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2003
dt-pub=200303
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Motivation towards learning a second language (A Case Study-Part2. Denmark)
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In this case study, I will analyse and discuss the results of a survey concerning motivation towards learning a second language conducted in one Danish high school. The students surveyed were between the ages of 13-18. This section, part two of the study, was conducted in Copenhagen, Denmark. This region of the world was chosen because bilingualism is quite common there and a large portion of the school-aged community is learning a second language and often a third and even a fourth. Denmark, a European country, is different than Canada (Case Study-Part 1.) because it neighbours many countries, which use different mother tongues.
en-copyright=
kn-copyright=

en-aut-name=VaillancourtChico
en-aut-sei=Vaillancourt
en-aut-mei=Chico
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering Okayama University, Faculty of Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=37
cd-vols=
no-issue=2
article-no=
start-page=67
end-page=72
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2003
dt-pub=200303
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=The role of helices of domain I for the insecticidal activity of Bacillus thuringiensis Cry4A toxin
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=An active form of Cry4A is a heterodimer of the 20- and 45-kDa fragments that are derived from the 130-kDa Cry4A protoxin. To investigate the function of these two fragments, several deletion mutants were constructed and expressed in E.coli as the GST (glutathione-S-transferase) fusion proteins. The results of the bioassay against Culex pipiens larvae showed that the interaction of two fragments of Cry4A was necessary for the toxicity, and that the C-terminal 67 amino acids of the 20-kDa fragment corresponding to the helices α4 and α5 were involved in determining the insecticidal activity. Surprisingly the lack of helix α5 did not affect the toxicity to C. pipiens, suggesting that the role of helix α5 of Cry4A was different from that postulated in the case of Cry4A toxins.
en-copyright=
kn-copyright=

en-aut-name=YamagiwaMasashi
en-aut-sei=Yamagiwa
en-aut-mei=Masashi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=SakaiHiroshi
en-aut-sei=Sakai
en-aut-mei=Hiroshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Bioscience and Biotechnology Okayama University

affil-num=2
en-affil=
kn-affil=Department of Bioscience and Biotechnology Okayama University
END

start-ver=1.4
cd-journal=joma
no-vol=36
cd-vols=
no-issue=1
article-no=
start-page=7
end-page=16
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2001
dt-pub=200112
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Microscopic Observation of Tensile Deformation Behavior of Polycrystalline Titanium with Scanning Probe Microscope
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The change in the surface morphology of polycrystalline titanium during tensile plastic deformation is studied, using the scanning probe microscope as well as the laser scanning microscope. The observation shows that the slip occurs mainly near grain boundary at the strain range of ε < 0.05. The slip develops with the applied strain, and the slip on the second slip system or the crossing of slip lines appear. The surface roughness increases linearly with the applied strain. The height difference between the
grain boundary area and the inner grain area also increases with the applied strain, though the increase rate becomes low after the applied strain of about 0.3. The nano-scale height difference of the surface step of slip lines increases with the applied strain, though it remains almost constant after the applied strain of 0.4. The averaged surface roughness measured with the scanning probe microscope is in good agreement with that measured with the laser scanning microscope.
en-copyright=
kn-copyright=

en-aut-name=LiYan
en-aut-sei=Li
en-aut-mei=Yan
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=AbeTakeji
en-aut-sei=Abe
en-aut-mei=Takeji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=TadaNaoya
en-aut-sei=Tada
en-aut-mei=Naoya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=KanazawaMasanori
en-aut-sei=Kanazawa
en-aut-mei=Masanori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Graduate School of Natural Science and Technology Okayama University

affil-num=2
en-affil=
kn-affil=Graduate School of Natural Science and Technology Okayama University

affil-num=3
en-affil=
kn-affil=Graduate School of Natural Science and Technology Okayama University

affil-num=4
en-affil=
kn-affil=Graduate School of Natural Science and Technology Okayama University
en-keyword=Plasticity
kn-keyword=Plasticity
en-keyword=Polycrystalline Titanium
kn-keyword=Polycrystalline Titanium
en-keyword=Tensile Deformation
kn-keyword=Tensile Deformation
en-keyword=Surface Morphology
kn-keyword=Surface Morphology
en-keyword=Slip
kn-keyword=Slip
en-keyword=Twin
kn-keyword=Twin
en-keyword=Probe Scanning Microscope
kn-keyword=Probe Scanning Microscope
en-keyword=Laser Scanning Microscope
kn-keyword=Laser Scanning Microscope
END

start-ver=1.4
cd-journal=joma
no-vol=36
cd-vols=
no-issue=1
article-no=
start-page=17
end-page=28
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2001
dt-pub=200112
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Application of Dead Beat Control method to the Water Level Control of Small-scale Hydroelectric Power Plant
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Small Scale Hydroelectric Power Generation is made using the water drop caused by the gradient difference between that of the river and that of the penstock. The water flow in this system apt to vary with time. Especially, at the time of the flood or that of the dry, the flow in the water stream varies largely. To realize the stable generation, it is necessary to maintain the water level in the head tank located in the mid way in the stream channel at a constant level. In this paper, variation of water level is forecasted using two-tank model for the penstock and the head tank and the water level control algorithm is proposed by deadbeat control. The effectiveness of the algorithm is evaluated beforehand using the simulation program of the water environment for the hydroelectric generation system.
en-copyright=
kn-copyright=

en-aut-name=EndoShinichiro
en-aut-sei=Endo
en-aut-mei=Shinichiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=KonishiMasami
en-aut-sei=Konishi
en-aut-mei=Masami
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Dept. Electronic Control Engineering Gifu National College of Technology

affil-num=2
en-affil=
kn-affil=Dept. Electrical and Electronic Engineering Okayama Univerisity
END

start-ver=1.4
cd-journal=joma
no-vol=36
cd-vols=
no-issue=1
article-no=
start-page=51
end-page=57
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2001
dt-pub=200112
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Structure and Cohesive Energy of Large Spherical Coulomb Clusters
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This is a brief essay on using kinesthetic approaches to learning English as a second language. In the essay, I briefly discuss teaching philosophy and 2 small-scale Technical Engineering projects that I have introduced and completed with my 4(th) year engineering students in the spring of 2001.
en-copyright=
kn-copyright=

en-aut-name=VaillancourtChico
en-aut-sei=Vaillancourt
en-aut-mei=Chico
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering Okayama University, Faculty of Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=36
cd-vols=
no-issue=1
article-no=
start-page=59
end-page=77
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2001
dt-pub=200112
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Model Selection for Geometric Fitting: Geometric Ale and Geometric MDL
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Contrasting "geometric fitting", for which the noise level is taken as the asymptotic variable, with "statistical inference", for which the number of observations is taken as the asymptotic variable, we give a new definition of the "geometric AIC" and the "geometric MDL" as the counterparts of Akaike's AIC and Rissanen's MDL. We discuss various theoretical and practical problems that emerge from our analysis. Finally, we show, doing experiments using synthetic and real images, that the geometric MDL does not necessarily outperform the geometric AIC and that the two criteria have very different characteristics.
en-copyright=
kn-copyright=

en-aut-name=KanataniKenichi
en-aut-sei=Kanatani
en-aut-mei=Kenichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Information Technology Okayama University
END

start-ver=1.4
cd-journal=joma
no-vol=36
cd-vols=
no-issue=1
article-no=
start-page=79
end-page=90
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2001
dt-pub=200112
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Evaluation and Selection of Models for Motion Segmentation
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=We first present an improvement of Kanatani's subspace separation [8] for motion segmentation by newly introducing the affine space constraint. We point out that this improvement does not always fare well due to the effective noise it introduces. In order to judge which solution to adopt if different segmentations are obtained, we present two criteria: one is the standard F test; the other is model selection using the geometric AIC of Kanatani [7] and the geometric MDL of Matsunaga and Kanatani [13]. We test these criteria doing real image experiments.
en-copyright=
kn-copyright=

en-aut-name=KanataniKenichi
en-aut-sei=Kanatani
en-aut-mei=Kenichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Information Technology Okayama University
END

start-ver=1.4
cd-journal=joma
no-vol=36
cd-vols=
no-issue=1
article-no=
start-page=91
end-page=106
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2001
dt-pub=200112
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Evaluation and Selection of Models for Motion Segmentation
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=We present a theoretically optimal linear algorithm for 3-D reconstruction from point correspondences over two views. We also present a similarly constructed optimal linear algorithm for 3-D reconstruction from optical flow. We then compare the performance of the two algorithms by simulation and real-image experiments using the same data. This is the first impartial comparison ever done in the sense that the two algorithms are both optimal, extracting the information contained in the data to a maximum possible degree. We observe that the finite motion solution is always superior to the optical flow solution and conclude
that the finite motion algorithm should be used for 3-D reconstruction.
en-copyright=
kn-copyright=

en-aut-name=KanataniKenichi
en-aut-sei=Kanatani
en-aut-mei=Kenichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=OhtaNaoya
en-aut-sei=Ohta
en-aut-mei=Naoya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Information Technology Okayama University

affil-num=2
en-affil=
kn-affil=Department of Computer Science Gunma University
END

start-ver=1.4
cd-journal=joma
no-vol=36
cd-vols=
no-issue=1
article-no=
start-page=107
end-page=116
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2001
dt-pub=200112
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Automatic Detection of Circular Objects by Ellipse Growing
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=We present a new method for automatically detecting circular objects in images: we detect an osculating circle to an elliptic arc using a Hough transform, iteratively deforming it into an ellipse, removing outlier pixels, and searching for a separate edge. The voting space is restricted to one and two dimensions for efficiency, and special weighting schemes are
introduced to enhance the accuracy. We demonstrate the effectiveness of our method using real images. Finally, we apply our method to the calibration of a turntable for 3-D object shape reconstruction.
en-copyright=
kn-copyright=

en-aut-name=KanataniKenichi
en-aut-sei=Kanatani
en-aut-mei=Kenichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=OhtaNaoya
en-aut-sei=Ohta
en-aut-mei=Naoya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Information Technology Okayama University

affil-num=2
en-affil=
kn-affil=Department of Computer Science Gunma University
END

start-ver=1.4
cd-journal=joma
no-vol=36
cd-vols=
no-issue=2
article-no=
start-page=1
end-page=6
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2002
dt-pub=200203
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Effect of Heat Treatment on the Serration of Low-Concentrated Al-Zn Alloys
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The effect of heat-treatment conditions on occurrence of serration in Al-Zn alloys was investigated. Specimens were aged for various times up to 2.6Ms at 293K or 273K after quenching from various temperatures (T(Q)), 473K to 853K, and tensile-tested at room temperature. Serration occurred more easily according as T(Q) became lower and the aging time became shorter: in the case that T(Q)=473K serration was observed even after aging for 2.6Ms, while in the case that T(Q)=773K serration did not occur irrespective of aging conditions. Serration was also recognized when the specimens were furnace-cooled from 773K to room temperature. These results together with those obtained by the electrical resistometry suggest that the serration in the low'concentrated Al-Zn alloy is caused by the formation of small GP zones whose Guinier radius is less than 1nm or some sort of solute clusters.
en-copyright=
kn-copyright=

en-aut-name=SakakibaraAkira
en-aut-sei=Sakakibara
en-aut-mei=Akira
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=KanadaniTeruto
en-aut-sei=Kanadani
en-aut-mei=Teruto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=TashiroTsutomu
en-aut-sei=Tashiro
en-aut-mei=Tsutomu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=YoshiokaKazumi
en-aut-sei=Yoshioka
en-aut-mei=Kazumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Dept. of Mechanical Engineering Okayama University

affil-num=2
en-affil=
kn-affil=Faculty of Engineering Okayama University of Science

affil-num=3
en-affil=
kn-affil=Faculty of Informatics Okayama University of Science

affil-num=4
en-affil=
kn-affil=Graduate School Okayama University of Science
END

start-ver=1.4
cd-journal=joma
no-vol=36
cd-vols=
no-issue=2
article-no=
start-page=7
end-page=13
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2002
dt-pub=200203
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Numerical Study on Deformation Behavior of Rigid-Plastic Inhomogeneous Material Using Three-Dimensional Models
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=It is important to study the microscopic deformation behavior of inhomogeneous material, for most engineering materials are inhomogeneous. The aim of the present study is to clarify by numerical analysis some features of microscopic plastic strain distributions, the mean flow stress and the material factors affecting on it. The rigid-plastic solution is important not only for plastic deformation problems with large strain, but also for creep deformation problems through the plastic analogy in the creep analysis. The effects of material parameter and loading conditions on the deformation behavior of the material are examined and discussed based on the result of calculation. The effects of the aspect ratio of the inhomogeneous regions on the deformation mode are studied. The patterns of the strain concentration and the averaged flow stress of the inhomogeneous material are also discussed. The results of rigid-plastic material are compared with those of the elastic material.
en-copyright=
kn-copyright=

en-aut-name=AbeTakeji
en-aut-sei=Abe
en-aut-mei=Takeji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=NagaoMakoto
en-aut-sei=Nagao
en-aut-mei=Makoto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=OhtaTomoyuki
en-aut-sei=Ohta
en-aut-mei=Tomoyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=NagayamaNoriyuki
en-aut-sei=Nagayama
en-aut-mei=Noriyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Graduate School of Natural Science and Technology, Okayama University

affil-num=2
en-affil=
kn-affil=Graduate School of Natural Science and Technology, Okayama University

affil-num=3
en-affil=
kn-affil=Graduate School of Natural Science and Technology, Okayama University

affil-num=4
en-affil=
kn-affil=Technological Research Center of Okayama Prefecture
en-keyword=Plasticity
kn-keyword=Plasticity
en-keyword=Deformation
kn-keyword=Deformation
en-keyword=Inhomogeneous Material
kn-keyword=Inhomogeneous Material
en-keyword=Strain Concentration Coefficient
kn-keyword=Strain Concentration Coefficient
en-keyword=Rigid-Plastic FEM
kn-keyword=Rigid-Plastic FEM
END

start-ver=1.4
cd-journal=joma
no-vol=36
cd-vols=
no-issue=2
article-no=
start-page=43
end-page=49
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2002
dt-pub=200203
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Motivation towards learning a second language (A Case Study-Part 1. Canada)
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In this case study, I will analyse and discuss the results of a survey concerning motivation towards learning a second language conducted in four Canadian schools. This section, part one of the study, was conducted in the Sudbury Region of Ontario, Canada. This region of the world was chosen because bilingualism is quite common there and a large portion of the community has learned a second language. Part two will be conducted in the winter of 2002, in Denmark, a European country that neighbours many countries with different mother tongues, I hope to conclude this case study with part three in the summer of 2002, in Japan, a monolingual island nation.
en-copyright=
kn-copyright=

en-aut-name=VaillancourtChico
en-aut-sei=Vaillancourt
en-aut-mei=Chico
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering Okayama University, Faculty of Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=36
cd-vols=
no-issue=2
article-no=
start-page=61
end-page=66
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2002
dt-pub=200203
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Cytotoxicity of the Bacillus thuringiensis Crystal Protein against Mammalian Cells
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The crystal proteins produced by Bacillus thuringiensis subsp, israelensis (Bti) and subsp. coreanensis A1519 strain were examined for the cytotoxicity against MOLT-4 and HeLa cells by MTT assay and LDH assay, The A1519 crystal proteins processed by proteinase K exhibited the specific cell-killing activity toward MOLT-4 with little damage to the cell membrane, On the other hand, the Bti crystal proteins processed by proteinase K caused the substantial damage to the cell membrane of both MOLT-4 and HeLa, leading to the cell lysis. The non-digested crystal proteins of both strains exhibited no cytotoxicity, These data suggested that while the Bti crystal proteins caused the colloid-osmotic swelling and cell lysis of MOLT-4 and HeLa, the proteinase K-digested A1519 crystal proteins induced the specific cell death of MOLT-4 through a mechanism other than that of Bti.
en-copyright=
kn-copyright=

en-aut-name=YamagiwaMasashi
en-aut-sei=Yamagiwa
en-aut-mei=Masashi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=NambaAkitoshi
en-aut-sei=Namba
en-aut-mei=Akitoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=AkaoTetsuyuki
en-aut-sei=Akao
en-aut-mei=Tetsuyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=MizukiEiichi
en-aut-sei=Mizuki
en-aut-mei=Eiichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=OhbaMichio
en-aut-sei=Ohba
en-aut-mei=Michio
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=SakaiHiroshi
en-aut-sei=Sakai
en-aut-mei=Hiroshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Bioscience and Biotechnology, Okayama University

affil-num=2
en-affil=
kn-affil=Department of Bioscience and Biotechnology, Okayama University

affil-num=3
en-affil=
kn-affil=Biotechnology and Food Research Institute, Fukuoka Industrial Technology Center

affil-num=4
en-affil=
kn-affil=Biotechnology and Food Research Institute, Fukuoka Industrial Technology Center

affil-num=5
en-affil=
kn-affil=Graduate School of Agriculture, Kyusyu University

affil-num=6
en-affil=
kn-affil=Department of Bioscience and Biotechnology, Okayama University
END

start-ver=1.4
cd-journal=joma
no-vol=46
cd-vols=
no-issue=
article-no=
start-page=10
end-page=20
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2012
dt-pub=201201
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Calibration of Ultra-Wide Fisheye Lens Cameras by Eigenvalue Minimization
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=We present a new technique for calibrating ultra-wide fisheye lens cameras by imposing the constraint that collinear points be rectified to be collinear, parallel lines to be parallel, and orthogonal lines to be orthogonal. Exploiting the fact that line fitting reduces to an eigenvalue problem, we do a rigorous perturbation analysis to obtain a Levenberg-Marquardt procedure for the optimization. Doing experiments, we point out that spurious solutions exist if collinearity and parallelism alone are imposed. Our technique has many desirable properties. For example, no metric information is required about the reference pattern or the camera position, and separate stripe patterns can be displayed on a video screen to generate a virtual grid, eliminating the grid point extraction processing.
en-copyright=
kn-copyright=

en-aut-name=KanataniKenichi
en-aut-sei=Kanatani
en-aut-mei=Kenichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Computer Science, Okayama University
END

start-ver=1.4
cd-journal=joma
no-vol=47
cd-vols=
no-issue=
article-no=
start-page=1
end-page=18
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2013
dt-pub=201301
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Overviews of Optimization Techniques for Geometric Estimation
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=We summarize techniques for optimal geometric estimation from noisy observations for computer
vision applications. We first discuss the interpretation of optimality and point out that geometric
estimation is different from the standard statistical estimation. We also describe our noise
modeling and a theoretical accuracy limit called the KCR lower bound. Then, we formulate estimation
techniques based on minimization of a given cost function: least squares (LS), maximum
likelihood (ML), which includes reprojection error minimization as a special case, and Sampson
error minimization. We describe bundle adjustment and the FNS scheme for numerically solving
them and the hyperaccurate correction that improves the accuracy of ML. Next, we formulate
estimation techniques not based on minimization of any cost function: iterative reweight, renormalization,
and hyper-renormalization. Finally, we show numerical examples to demonstrate that
hyper-renormalization has higher accuracy than ML, which has widely been regarded as the most
accurate method of all. We conclude that hyper-renormalization is robust to noise and currently is
the best method.
en-copyright=
kn-copyright=

en-aut-name=KanataniKenichi
en-aut-sei=Kanatani
en-aut-mei=Kenichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Computer Science, Okayama University
END

start-ver=1.4
cd-journal=joma
no-vol=45
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2011
dt-pub=201101
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Contents
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=Faculty of Engineering, Okayama University
kn-aut-sei=Faculty of Engineering, Okayama University
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=38
cd-vols=
no-issue=1-2
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2004
dt-pub=200403
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=cover / title page
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=Faculty of Engineering, Okayama University
kn-aut-sei=Faculty of Engineering, Okayama University
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=38
cd-vols=
no-issue=1-2
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2004
dt-pub=200403
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=contents / back cover
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=Faculty of Engineering, Okayama University
kn-aut-sei=Faculty of Engineering, Okayama University
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=37
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2002
dt-pub=200211
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=cover / title page
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Faculty of Engineering, Okayama University
en-aut-sei=Faculty of Engineering, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=37
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2002
dt-pub=200211
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=contents / back cover
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Faculty of Engineering, Okayama University
en-aut-sei=Faculty of Engineering, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=37
cd-vols=
no-issue=2
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2003
dt-pub=200303
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=cover / title page
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Faculty of Engineering, Okayama University
en-aut-sei=Faculty of Engineering, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=37
cd-vols=
no-issue=2
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2003
dt-pub=200303
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=contents / back cover
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Faculty of Engineering, Okayama University
en-aut-sei=Faculty of Engineering, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=36
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2001
dt-pub=200112
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=cover / title page
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Faculty of Engineering, Okayama University
en-aut-sei=Faculty of Engineering, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=36
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2001
dt-pub=200112
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=contents / back cover
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Faculty of Engineering, Okayama University
en-aut-sei=Faculty of Engineering, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=36
cd-vols=
no-issue=2
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2002
dt-pub=200203
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=cover / title page
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Faculty of Engineering, Okayama University
en-aut-sei=Faculty of Engineering, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=36
cd-vols=
no-issue=2
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2002
dt-pub=200203
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=contents / back cover
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Faculty of Engineering, Okayama University
en-aut-sei=Faculty of Engineering, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=46
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2012
dt-pub=201201
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Contents
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Faculty of Engineering, Okayama University
en-aut-sei=Faculty of Engineering, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=47
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2013
dt-pub=201301
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Contents
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Faculty of Engineering, Okayama University
en-aut-sei=Faculty of Engineering, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=40
cd-vols=
no-issue=1
article-no=
start-page=78
end-page=82
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2006
dt-pub=200601
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=An Eye-Contour Extraction Algorithm from Face Image usingDeformable Template Matching
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A variety of studies on face components such as eyes, lips, noses, and teeth have been proceeding in medicine, psychology, biometrics authentication, and other areas. In this paper, we present an algorithm of extracting eye contours from a face image using the deformable template matching method. Our template for an eye contour is composed of three quadratic functions for the perimeter and one circle for the pupil. In our algorithm, a digital color face image is rst converted to a binary image of representing eyes, after the region around eyes is identied on the face image by using hues and values of the color
image. Then, parameters in the template are optimized by a local search method with a tabu period and a hill-climbing, so as to t the template to the eye contour in the binary
image. The accuracy of our algorithm is evaluated through sample face images of students.
In addition, the application of our proposal to eye shape indices is investigated in a face image database "HOIP", where recognizable dierence exists in index distributions between males and females.
en-copyright=
kn-copyright=

en-aut-name=FunabikiNobuo
en-aut-sei=Funabiki
en-aut-mei=Nobuo
kn-aut-name=船曳信生
kn-aut-sei=船曳
kn-aut-mei=信生
aut-affil-num=1
ORCID=

en-aut-name=IsogaiMegumi
en-aut-sei=Isogai
en-aut-mei=Megumi
kn-aut-name=磯貝愛
kn-aut-sei=磯貝
kn-aut-mei=愛
aut-affil-num=2
ORCID=

en-aut-name=HigashinoTeruo
en-aut-sei=Higashino
en-aut-mei=Teruo
kn-aut-name=東野輝夫
kn-aut-sei=東野
kn-aut-mei=輝夫
aut-affil-num=3
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=OdaMasashi
kn-aut-sei=Oda
kn-aut-mei=Masashi
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Grad. School of Natural Science & Tech. Okayama University

affil-num=2
en-affil=
kn-affil=Grad. School of Natural Science & Tech. Okayama University

affil-num=3
en-affil=
kn-affil=Grad. School of Inform. Science & Tech. Osaka University

affil-num=4
en-affil=
kn-affil=Grad. School of Inform. Science & Tech. Osaka University
END

start-ver=1.4
cd-journal=joma
no-vol=38
cd-vols=
no-issue=1-2
article-no=
start-page=1
end-page=4
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2004
dt-pub=200403
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Serration and Reversion Treatment in Al-10mass%Zn Alloy
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The relationship between occurrence of serration and reversion heat treatment was studied by tensile test on Al-10mass%Zn alloy. Serration was observed for the furnace cooled specimen, but not for the as-quenched one and the shortly aged one, which result is difficult to be interpreted by the Cottrell theory. The stress amplitude in the serration increased with increasing the time of annealing for reversion up to 10ks and then stayed at a constant value which might be interpreted by the Cottrell theory. The stress amplitude in the serration decreased with increasing the annealing
temperature, which is contrary to the prediction by the Cottrell theory. The specimen directly annealed without aging and the one annealed after aging agreed well with each other in the tensile strength and the stress amplitude in the       serration, which suggests solute clusters as the cause of serration.
en-copyright=
kn-copyright=

en-aut-name=SakakibaraAkira
en-aut-sei=Sakakibara
en-aut-mei=Akira
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=KanadaniTeruto
en-aut-sei=Kanadani
en-aut-mei=Teruto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Dept. of Mechanical Engineering Okayama University

affil-num=2
en-affil=
kn-affil=Faculty of Engineering Okayama University of Science
END

start-ver=1.4
cd-journal=joma
no-vol=29
cd-vols=
no-issue=2
article-no=
start-page=77
end-page=81
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19950327
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Ultrasonic Implantation of Bioactive Glass Particles into Poly(methyl methacrylate) Substrates
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Poly(methyl methacrylate) substrates were immersed in suspensions containing bioactive 50CaO･50SiO(2) (mol%) glass particles (45 μm in diameter) and a 6:4 (volume fraction) mixture of ethanol and THF, and an ultrasonic energy was applied to the system. A layer of glass particles was implanted and covered more than 50% of the substrate surface. Thin film X-ray diffraction patterns and FT-IR reflection spectra indicated deposition of apatite on the glass-implanted substrates after they were soaked for 12 h in a simulated body fluid similar in apatite-deposition ability to the human blood plasma. Flake-like apatite crystallites formed on the substrate soaked in SBF for 3 days.
en-copyright=
kn-copyright=

en-aut-name=TsuruKanji
en-aut-sei=Tsuru
en-aut-mei=Kanji
kn-aut-name=都留寛治
kn-aut-sei=都留
kn-aut-mei=寛治
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=NishiyamaChikako
kn-aut-sei=Nishiyama
kn-aut-mei=Chikako
aut-affil-num=2
ORCID=

en-aut-name=OhtsukiChikara
en-aut-sei=Ohtsuki
en-aut-mei=Chikara
kn-aut-name=大槻主税
kn-aut-sei=大槻
kn-aut-mei=主税
aut-affil-num=3
ORCID=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=尾坂明義
kn-aut-sei=尾坂
kn-aut-mei=明義
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Bioengineering Science

affil-num=2
en-affil=
kn-affil=Department of Bioengineering Science

affil-num=3
en-affil=
kn-affil=Department of Bioengineering Science

affil-num=4
en-affil=
kn-affil=Department of Bioengineering Science
END

start-ver=1.4
cd-journal=joma
no-vol=29
cd-vols=
no-issue=2
article-no=
start-page=83
end-page=88
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19950327
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Effect of Alcohol on Bioactivity of Glasses
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=One of the CaO,SiO(2)-based bioactive glasses(5OCaO･ 5OSiO (2) in mol%) were soaked for various periods in a simulated body fluid(SBF) with or without containing alcohols such as methanol, ethanol, and 1-propanol. Effect of the alcohols was investigated on the apatite formation on the glass surface with thin-film X-ray diffraction, FT-IR reflection spectroscopy and scanning electron microscopy. Under the presence of alcohols up to 0.1mol/l in the SBF an apatite layer was formed on the glass, while it consisted of crystallites similar in morphology but
larger in size than that found for the SBF without the alcohols. It was concluded that the alcohols little influenced the the apatite forming ability of the CaO,SiO(2)-based glasses.
en-copyright=
kn-copyright=

en-aut-name=TsuruKanji
en-aut-sei=Tsuru
en-aut-mei=Kanji
kn-aut-name=都留寛治
kn-aut-sei=都留
kn-aut-mei=寛治
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=NishiyamaChikako
kn-aut-sei=Nishiyama
kn-aut-mei=Chikako
aut-affil-num=2
ORCID=

en-aut-name=OhtsukiChikara
en-aut-sei=Ohtsuki
en-aut-mei=Chikara
kn-aut-name=大槻主税
kn-aut-sei=大槻
kn-aut-mei=主税
aut-affil-num=3
ORCID=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=尾坂明義
kn-aut-sei=尾坂
kn-aut-mei=明義
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Bioengineering Science

affil-num=2
en-affil=
kn-affil=Department of Bioengineering Science

affil-num=3
en-affil=
kn-affil=Department of Bioengineering Science

affil-num=4
en-affil=
kn-affil=Department of Bioengineering Science
END

start-ver=1.4
cd-journal=joma
no-vol=23
cd-vols=
no-issue=1
article-no=
start-page=31
end-page=38
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1988
dt-pub=19881122
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Amorphous Oxides Prepared from Organometallic Compounds Part 1. Preparation of Sodium Borosilicate Gels
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Sodium borosilicate gels of compositions similar to that of Vycor(R) glass like 80SiO(2).15B(2)O(3).5Na(2)O(wt%) were prepared from hydrolysis and polycondensation of tetraethyl orthosilicate, trimethyl borate, and sodium methylate under the HCl catalysis. Variation of the gelation time is examined as a function of the  mixing ratio of the starting materials and the catalyst. The thermal behavior of the gels has been discussed on the basis of their TG and DTA traces.
en-copyright=
kn-copyright=

en-aut-name=MiuraYoshinari
en-aut-sei=Miura
en-aut-mei=Yoshinari
kn-aut-name=三浦嘉也
kn-aut-sei=三浦
kn-aut-mei=嘉也
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=YuasaMotokazu
kn-aut-sei=Yuasa
kn-aut-mei=Motokazu
aut-affil-num=2
ORCID=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=尾坂明義
kn-aut-sei=尾坂
kn-aut-mei=明義
aut-affil-num=3
ORCID=

en-aut-name=TakahashiKatsuaki
en-aut-sei=Takahashi
en-aut-mei=Katsuaki
kn-aut-name=高橋克明
kn-aut-sei=高橋
kn-aut-mei=克明
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=2
en-affil=
kn-affil=Sekisui Chemical Industry, Ltd.

affil-num=3
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=4
en-affil=
kn-affil=Department of Applied Chemistry
END

start-ver=1.4
cd-journal=joma
no-vol=23
cd-vols=
no-issue=1
article-no=
start-page=39
end-page=48
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1988
dt-pub=19881122
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Amorphous Oxides Prepared from Organometallic Compounds Part2. Structure Evolution in Sodium Borosilicate Gels
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Sodium borosilicate gels of compositions similar to that of Vycor(R) glass like 80SiO(2).15B(2)O(3).5Na(2)O (wt%) were prepared from hydrolysis and polycondensation of metal alkoxides under the HCl catalysis. Variation of specific surface area and porosity with temperature indicated that closed pores were opened below 400℃, and collapsed above 450℃ after the porosity reached a maximum value around 450℃. The structural evolution was examined due to IR spectra and a phase separation in the gels was observed. The solubility of the gels into 1N-HCl was studied as a function of the treatment temperature.
en-copyright=
kn-copyright=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=尾坂明義
kn-aut-sei=尾坂
kn-aut-mei=明義
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=YuasaMotokazu
kn-aut-sei=Yuasa
kn-aut-mei=Motokazu
aut-affil-num=2
ORCID=

en-aut-name=MiuraYoshinari
en-aut-sei=Miura
en-aut-mei=Yoshinari
kn-aut-name=三浦嘉也
kn-aut-sei=三浦
kn-aut-mei=嘉也
aut-affil-num=3
ORCID=

en-aut-name=TakahashiKatsuaki
en-aut-sei=Takahashi
en-aut-mei=Katsuaki
kn-aut-name=高橋克明
kn-aut-sei=高橋
kn-aut-mei=克明
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=2
en-affil=
kn-affil=Sekisui Chemical Industry, Ltd.

affil-num=3
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=4
en-affil=
kn-affil=Department of Applied Chemistry
END

start-ver=1.4
cd-journal=joma
no-vol=28
cd-vols=
no-issue=2
article-no=
start-page=77
end-page=84
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1994
dt-pub=19940315
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Chemical States of Fluorine Atoms and Laser-Induced Crystallization in rf-Sputtered Thin Films of Amorphous Lead Fluorosilicate
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Amorphous films of lead oxyfluorosilicate were prepared with a rf-sputtering technique, and the distribution profiles of the component elements and chemical states of the fluoride ions were analyzed with an X-ray photoelectron spectrometer. Si atoms with an expanded coordination, O(4)Si-F, were present near the surface, and O(3)Si-F units were present in the deeper part of the films. Electrical resistance indicated transition to a
conduction state for the films containing fluoride ions, while the films were crystallized to precipitate low quartz by the irradiation of He-Ne laser of 3 mW up to 1 sec.
en-copyright=
kn-copyright=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=尾坂明義
kn-aut-sei=尾坂
kn-aut-mei=明義
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=KawamuraHaruyuki
kn-aut-sei=Kawamura
kn-aut-mei=Haruyuki
aut-affil-num=2
ORCID=

en-aut-name=MiuraYoshinari
en-aut-sei=Miura
en-aut-mei=Yoshinari
kn-aut-name=三浦嘉也
kn-aut-sei=三浦
kn-aut-mei=嘉也
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Applied Chemsitry

affil-num=2
en-affil=
kn-affil=Department of Applied Chemsitry

affil-num=3
en-affil=
kn-affil=Department of Applied Chemsitry
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=2
article-no=
start-page=61
end-page=67
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19920328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Preparation of Mullite Dispersed Silica Ceramics through Sol-Gel Processing
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Mullite-dispersed silica ceramics were prepared through sol-gel processing by the use of tetraethoxy silane, aluminium nitrate and aluminium isopropoxide as the Si and Al sources where HCl and HN0(3) were the catalyst. Effect of the starting materials, solvents and catalysts was examined on the gelation time or temperature of mullite precipitation. Apparent activation energy of gelation ranged from 80 to 95kJ/mol. The presence of AI in the sols elongated the gelling time suggesting the formation of chelate bonds between AI and Si-OR or Si-OH bonds.
en-copyright=
kn-copyright=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=KawabataKouji
kn-aut-sei=Kawabata
kn-aut-mei=Kouji
aut-affil-num=2
ORCID=

en-aut-name=NanbaTokuro
en-aut-sei=Nanba
en-aut-mei=Tokuro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=TakadaJun
en-aut-sei=Takada
en-aut-mei=Jun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=MiuraYoshinari
en-aut-sei=Miura
en-aut-mei=Yoshinari
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=2
en-affil=
kn-affil=Industrial Technology Center of Okayama Prefecture

affil-num=3
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=4
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=5
en-affil=
kn-affil=Department of Applied Chemistry
END

start-ver=1.4
cd-journal=joma
no-vol=24
cd-vols=
no-issue=1
article-no=
start-page=53
end-page=61
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1989
dt-pub=19891129
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=The Diffusion of Sodium Ions into Tin Oxide Thin Films from Glass Substrates
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Electrical resistance and X-ray photoelectron depth profile analysis are studied for antimony doped tin oxide films developed on silica, alkali-free and sodalime slide glass substrates. The sodium ions diffused from the substrates to the films prevented the crystal growth of rutile type tin oxide in the film, resulting in the high electrical resistance. A diffusion layer has been detected for each film with diffuse profiles of multi valent cations (Sn, Si or Ca) at the interface of the tin oxide film and substrate. A greater amount of sodium atoms have been detected in the film developed on the soda-lime glass while almost no sodium atoms have been found in those on the other substrates. This can be explained by the diffusion of the sodium ions in the substrate due to a drastic hydronium-sodium exchange mechanism under highly acidic conditions during the dipping and drying processes.
en-copyright=
kn-copyright=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=尾坂明義
kn-aut-sei=尾坂
kn-aut-mei=明義
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=TakaoSeiji
kn-aut-sei=Takao
kn-aut-mei=Seiji
aut-affil-num=2
ORCID=

en-aut-name=OdaKiichi
en-aut-sei=Oda
en-aut-mei=Kiichi
kn-aut-name=小田喜一
kn-aut-sei=小田
kn-aut-mei=喜一
aut-affil-num=3
ORCID=

en-aut-name=TakadaJun
en-aut-sei=Takada
en-aut-mei=Jun
kn-aut-name=高田潤
kn-aut-sei=高田
kn-aut-mei=潤
aut-affil-num=4
ORCID=

en-aut-name=MiuraYoshinari
en-aut-sei=Miura
en-aut-mei=Yoshinari
kn-aut-name=三浦嘉也
kn-aut-sei=三浦
kn-aut-mei=嘉也
aut-affil-num=5
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=2
en-affil=
kn-affil=Japan Exran Co. Ltd.

affil-num=3
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=4
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=5
en-affil=
kn-affil=Department of Applied Chemistry
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=23
end-page=35
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19901214
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Preparation of ZnO Films by Activated Reactive Evaporation Method
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Zinc oxide films were prepared on silica glass substrates by the use of an r.f. activated reactive evaporation (ARE) method, and were examined by X-ray diffraction (XRD) and scanning electron micrograph (SEM). XRD measurements indicate that the films were c-axis oriented and that an r.f. plasma of Zn and O was necessary for the ZnO film deposition. Substrate temperature, oxygen gas pressure, evaporation rate, r.f. power and inlet position of oxygen gas effect the c-axis orientation, the growth rate and the microstructure of the films. Optimum conditions for a dense film with a fine texture of the surface and having good crystallinity were as follows: the substrate temperature;400℃, the evaporation rate;5.0(A)/s, the oxygen pressure;2.0x10(-4) Torr, the r.f. power;150 to 200W, and the oxygen gas inlet near the substrate. For the film prepared under the optimum conditions, the standard deviation　σ　of the rocking curve for the (002) diffraction was 1.9deg, smaller than that of the film prepared by using an r.f. sputtering method.
en-copyright=
kn-copyright=

en-aut-name=MiuraYoshinari
en-aut-sei=Miura
en-aut-mei=Yoshinari
kn-aut-name=三浦嘉也
kn-aut-sei=三浦
kn-aut-mei=嘉也
aut-affil-num=1
ORCID=

en-aut-name=TakadaJun
en-aut-sei=Takada
en-aut-mei=Jun
kn-aut-name=高田潤
kn-aut-sei=高田
kn-aut-mei=潤
aut-affil-num=2
ORCID=

en-aut-name=OsakaAkiyoshi
en-aut-sei=Osaka
en-aut-mei=Akiyoshi
kn-aut-name=尾坂明義
kn-aut-sei=尾坂
kn-aut-mei=明義
aut-affil-num=3
ORCID=

en-aut-name=KawamuraToshio
en-aut-sei=Kawamura
en-aut-mei=Toshio
kn-aut-name=河村利夫
kn-aut-sei=河村
kn-aut-mei=利夫
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=2
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=3
en-affil=
kn-affil=Department of Applied Chemistry

affil-num=4
en-affil=
kn-affil=Department of Applied Chemistry
END

start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=1
article-no=
start-page=93
end-page=105
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19921125
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Advection Dispersion by Eulerian Lagrangian Finite Element Method
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In this paper the author will be describe phenomena of advection dispersion in subsurface flow by using Eulerian Lagrangian Finite Element Method. Where Finite Element Method with Galerkin formulation and weigthed residual method is used to solve seepage and advection dispersion equation. The problem of one dimensional and two dimensional rectangular wave are analyzed in this paper. And the result of numerical analyses will be compared with analytical solutions. The numerical results showed the very good agreement with the analytical solutions.
en-copyright=
kn-copyright=

en-aut-name=NishigakiMakoto
en-aut-sei=Nishigaki
en-aut-mei=Makoto
kn-aut-name=西垣誠
kn-aut-sei=西垣
kn-aut-mei=誠
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=SudindaTeddy
kn-aut-sei=Sudinda
kn-aut-mei=Teddy
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=HishiyaTomoyuki
kn-aut-sei=Hishiya
kn-aut-mei=Tomoyuki
aut-affil-num=3
ORCID=

en-aut-name=KohnoIchiro
en-aut-sei=Kohno
en-aut-mei=Ichiro
kn-aut-name=河野伊一郎
kn-aut-sei=河野
kn-aut-mei=伊一郎
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Civil Engineering

affil-num=2
en-affil=
kn-affil=Graduate Student in Department of Civil Engineering

affil-num=3
en-affil=
kn-affil=D I A Consultant

affil-num=4
en-affil=
kn-affil=Department of Civil Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=28
cd-vols=
no-issue=1
article-no=
start-page=71
end-page=85
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1993
dt-pub=19931130
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Numerical Analysis of Salt Intrusion into Aquifer by Eulerian Lagrangian Finite Element Method
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In this paper, method of Eulerian Lagrangian numerical analysis is used to described Advection-Dispersion phenomena. The influence of concentration to the density of fluid is considered. A laboratory model of a two dimensional confined aquifer containing an isotropic, homogeneous porous medium (Hosokawa et.al 1989) was used to validate the applicability of Advection-Dispersion of numerical analysis with steady and unsteady state condition [1].
en-copyright=
kn-copyright=

en-aut-name=NishigakiMakoto
en-aut-sei=Nishigaki
en-aut-mei=Makoto
kn-aut-name=西垣誠
kn-aut-sei=西垣
kn-aut-mei=誠
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=SudindaTeddy
kn-aut-sei=Sudinda
kn-aut-mei=Teddy
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=HishiyaTomoyuki
kn-aut-sei=Hishiya
kn-aut-mei=Tomoyuki
aut-affil-num=3
ORCID=

en-aut-name=KohnoIichiro
en-aut-sei=Kohno
en-aut-mei=Iichiro
kn-aut-name=河野伊一郎
kn-aut-sei=河野
kn-aut-mei=伊一郎
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Civil Engineering

affil-num=2
en-affil=
kn-affil=Graduate Student in Department of Civil Engineering

affil-num=3
en-affil=
kn-affil=D I A Consultant

affil-num=4
en-affil=
kn-affil=Department of Civil Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=28
cd-vols=
no-issue=1
article-no=
start-page=87
end-page=128
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1993
dt-pub=19931130
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Drain System Around the Underground Cavern
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In recent years, construction or planning of large-scale underground structures, such as underground power plants, underground oil storage plants and nuclear power plants have been coming into consideration in Japan. To construct such as large-scale underground structures, one of the most important problems is to make clear beforehand the behavior of groundwater around these structures and the other is to carry out proper countermeasure of groundwater, so that these structures can be constructed safely and maintained stability over a long time period.
This report describes the results of theoretical studies on the drain systems and at the same time, discusses the drain systems around the underground cavern for the practical underground power stations.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=MotojimaIsao
kn-aut-sei=Motojima
kn-aut-mei=Isao
aut-affil-num=1
ORCID=

en-aut-name=KonoIichiro
en-aut-sei=Kono
en-aut-mei=Iichiro
kn-aut-name=河野伊一郎
kn-aut-sei=河野
kn-aut-mei=伊一郎
aut-affil-num=2
ORCID=

en-aut-name=NishigakiMakoto
en-aut-sei=Nishigaki
en-aut-mei=Makoto
kn-aut-name=西垣誠
kn-aut-sei=西垣
kn-aut-mei=誠
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Central Research Institute of Electric Power Industry

affil-num=2
en-affil=
kn-affil=Department of Civil Engineerig

affil-num=3
en-affil=
kn-affil=Department of Civil Engineerig
END

start-ver=1.4
cd-journal=joma
no-vol=28
cd-vols=
no-issue=2
article-no=
start-page=59
end-page=75
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1994
dt-pub=19940315
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A Study on the Elasto-plastical Constitutive Equation for Unsaturated Soil
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In this paper, first, an elasto-plastic consitituve equation for unsaturated soil was developed by considering of the basically behavior of unsaturated soil. Second, the results of a number of triaxial test and a set of rigid
foundation model tests were simulated by using this constitutive equation, the agreement between observed and computed results was satisfactory and confirms the possibilities of this constitutive equation.
en-copyright=
kn-copyright=

en-aut-name=NishigakiMakoto
en-aut-sei=Nishigaki
en-aut-mei=Makoto
kn-aut-name=西垣誠
kn-aut-sei=西垣
kn-aut-mei=誠
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=SunYao
kn-aut-sei=Sun
kn-aut-mei=Yao
aut-affil-num=2
ORCID=

en-aut-name=KohnoIichiro
en-aut-sei=Kohno
en-aut-mei=Iichiro
kn-aut-name=河野伊一郎
kn-aut-sei=河野
kn-aut-mei=伊一郎
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Civil Engineering

affil-num=2
en-affil=
kn-affil=The Graduate School of Natural Science and Technology

affil-num=3
en-affil=
kn-affil=Department of Civil Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=59
end-page=69
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19901214
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Pumping Test for Multilayered Aquifers
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In this paper, we propose a method to determine the coefficients of permeability of the unconfined aquifer consisted of two different permeability layers. With mixing the conventional pumping test and falling head permeability test, the coefficients of permeabilitiy k(1) and k(2) were obtained. The validity of the proposed method is investigated by using the numerical simulation. As the results, it becomes apparent that the proposed method is applicable to real hydarulic problems.
en-copyright=
kn-copyright=

en-aut-name=KohnoIichiro
en-aut-sei=Kohno
en-aut-mei=Iichiro
kn-aut-name=河野伊一郎
kn-aut-sei=河野
kn-aut-mei=伊一郎
aut-affil-num=1
ORCID=

en-aut-name=NishigakiMakoto
en-aut-sei=Nishigaki
en-aut-mei=Makoto
kn-aut-name=西垣誠
kn-aut-sei=西垣
kn-aut-mei=誠
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=OkadaJunji
kn-aut-sei=Okada
kn-aut-mei=Junji
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Civil engineering

affil-num=2
en-affil=
kn-affil=Department of Civil engineering

affil-num=3
en-affil=
kn-affil=Nakaboli Soil Corner Co. Ltd.
END

start-ver=1.4
cd-journal=joma
no-vol=30
cd-vols=
no-issue=2
article-no=
start-page=15
end-page=20
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1996
dt-pub=19960329
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Estimation of Muscle Fatigue of Low Back upon the Muscle Stiffness
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=An estimation of muscle fatigue is very important study and many laboratory researchers had done actively in this field. The excellent measurement and analysis methods, however, have not established yet. The aim of this study was to investigate the muscle fatigue of low back, caused by sitting on the vehicle seat for a long time. The muscle viscoelasticity and the EMG (Electromyogram) were measured. The authors proposed the objective muscle fatigue index that was obtained from the result of PCA (Principal Component Analysis) by using the measured varlables. The objective muscle fatigue index suggests an adequate correlation with the subjective fatigue on the vehicle seat.
en-copyright=
kn-copyright=

en-aut-name=OkaHisao
en-aut-sei=Oka
en-aut-mei=Hisao
kn-aut-name=岡久雄
kn-aut-sei=岡
kn-aut-mei=久雄
aut-affil-num=1
ORCID=

en-aut-name=FujiwaraShiro
en-aut-sei=Fujiwara
en-aut-mei=Shiro
kn-aut-name=藤原史朗
kn-aut-sei=藤原
kn-aut-mei=史朗
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical & Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical & Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=2
article-no=
start-page=11
end-page=17
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1993
dt-pub=19930325
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Tooth Mobility Measurement of Dental Implants
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The use of dental implants has increased together with increases in the human life span and it has become an imperative subject for dentists to familiarize themselves with this treatment modality. Unfortunately, there has been no practical and quantitative method for in vivo evaluation of the stability of dental implants. In the tooth mobility examination, the tactile sense of natural teeth is different from that of dental implants. The authors have developed an automatic diagnosis system of tooth mobility for clinical use. The biomechanical mobility of peri-implantium is measured with a pseudo-random vibration, from which the viscoelasticity c1, c2, k of peri-implantium is obtained. The diagnosis system has been applied to the quantitative evaluation of the stability of implants : endodontics endosseous implants (titanium pin), endosseous implants (Bioceram). It has also been applied to the evaluation of the long-term prognoses of dental implantation (Bioceram) and the examination of Intramobile implant (IMZ), and the satisfactory results have been obtained.
en-copyright=
kn-copyright=

en-aut-name=OkaHisao
en-aut-sei=Oka
en-aut-mei=Hisao
kn-aut-name=岡久雄
kn-aut-sei=岡
kn-aut-mei=久雄
aut-affil-num=1
ORCID=

en-aut-name=YamamotoTatsuma
en-aut-sei=Yamamoto
en-aut-mei=Tatsuma
kn-aut-name=山本辰馬
kn-aut-sei=山本
kn-aut-mei=辰馬
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=SarataniKeiji
kn-aut-sei=Saratani
kn-aut-mei=Keiji
aut-affil-num=3
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=TanakaMasahiro
kn-aut-sei=Tanaka
kn-aut-mei=Masahiro
aut-affil-num=4
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=KawazoeTakayoshi
kn-aut-sei=Kawazoe
kn-aut-mei=Takayoshi
aut-affil-num=5
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical & Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical & Electronic Engineering

affil-num=3
en-affil=
kn-affil=The Second Department of Prosthetic Dentistry, Osaka Dental University

affil-num=4
en-affil=
kn-affil=The Second Department of Prosthetic Dentistry, Osaka Dental University

affil-num=5
en-affil=
kn-affil=The Second Department of Prosthetic Dentistry, Osaka Dental University
END

start-ver=1.4
cd-journal=joma
no-vol=29
cd-vols=
no-issue=2
article-no=
start-page=29
end-page=37
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19950327
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Estimation of Body Structure by Biomechanical Impedance
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In the stiffness evaluation from the skin surface, the body structure under the skin, like a bone and muscle, influences on the measurement results. The authors developed the measurement system of biomechanical impedance with applying a vibration of acoustic frequency onto the body surface. We measured the viscoelasticity of the silicone-gel model, which involves metal blocks, from
the gel surface by using this system. The internal structure of model is estimated from the relation between the viscoelasticity and the distance from the gel surface to the internal block. Applying this method, the shape of ribs of the right chest are estimated. The shapes and viscoelasticity of silicone-gel tumor model, which has two different tumors, are also estimated.
en-copyright=
kn-copyright=

en-aut-name=OkaHisao
en-aut-sei=Oka
en-aut-mei=Hisao
kn-aut-name=岡久雄
kn-aut-sei=岡
kn-aut-mei=久雄
aut-affil-num=1
ORCID=

en-aut-name=FukudaTakashi
en-aut-sei=Fukuda
en-aut-mei=Takashi
kn-aut-name=福田敬
kn-aut-sei=福田
kn-aut-mei=敬
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical & Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical & Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=1
article-no=
start-page=43
end-page=49
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1991
dt-pub=19911130
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Application of the Adjoint Spectrum to the Frequency Tracking in Spectrometry with Tunable Diode Lasers Suffering from Temperature Drift
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A numerical technique called as "adjoint spectrum" has been proposed by the authors in a previous work. Two applications of it are presented here. It is demonstrated that by generalizing the aspect of adjoint spectrum it becomes possible to measure densities of mixed gases simultaneously. An experimental proof of this has been carried on and simultaneous measurement of densities of both methane and dinitrogen oxide was realized. On the other hand, it is also reported that frequency shifting of spectra, which is a cause of error in spectrometric measurements, can be corrected by exploiting the adjoint spectrum technique in connection with the Taylor expansion. Numerical examples showing the success of this method are reported as well.
en-copyright=
kn-copyright=

en-aut-name=BouzidiMoncef
en-aut-sei=Bouzidi
en-aut-mei=Moncef
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=KogaRyuji
en-aut-sei=Koga
en-aut-mei=Ryuji
kn-aut-name=古賀隆治
kn-aut-sei=古賀
kn-aut-mei=隆治
aut-affil-num=2
ORCID=

en-aut-name=WadaOsami
en-aut-sei=Wada
en-aut-mei=Osami
kn-aut-name=和田修己
kn-aut-sei=和田
kn-aut-mei=修己
aut-affil-num=3
ORCID=

en-aut-name=KagawaNaoki
en-aut-sei=Kagawa
en-aut-mei=Naoki
kn-aut-name=香川直己
kn-aut-sei=香川
kn-aut-mei=直己
aut-affil-num=4
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=HaiXu
kn-aut-sei=Hai
kn-aut-mei=Xu
aut-affil-num=5
ORCID=

en-aut-name=KosakaMegumi
en-aut-sei=Kosaka
en-aut-mei=Megumi
kn-aut-name=小坂恵
kn-aut-sei=小坂
kn-aut-mei=恵
aut-affil-num=6
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=SanoHIroya
kn-aut-sei=Sano
kn-aut-mei=HIroya
aut-affil-num=7
ORCID=

affil-num=1
en-affil=
kn-affil=The Graduate School of Natural Science and Technology

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=3
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=4
en-affil=
kn-affil=The Graduate School of Natural Science and Technology

affil-num=5
en-affil=
kn-affil=Measurement and Test Center, North-East Normal University

affil-num=6
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=7
en-affil=
kn-affil=Faculty of Engineering, Fukuyama University
END

start-ver=1.4
cd-journal=joma
no-vol=22
cd-vols=
no-issue=
article-no=
start-page=1
end-page=14
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1988
dt-pub=19880331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Measurement of Biomechanical Impedance - Its device and measuring conditions
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Biomechanical impedance is relatively small compared to industrial mechanical impedance. Thus it is difficult to measure it precisely. A biomechanical impedance measuring system was developed for portable use by means of random excitation. This system doesn't require a fixed body and vibrator supporting apparatus. In order to obtain an impedance spectrum, the FFT processing is performed using a personal computer. The spectra of the biomechanical impedance which is measured on body surfaces depend on body positions and can be roughly classified into three spectra patterns : soft, stiff and intermediate. During the measurement, the measuring conditions (preload, diameter of the vibrating tip etc.) influence the results. However, it became clear that the linearity of the biomechanical impedance was satisfied in the limited measuring conditions. Accordingly it is possible to standardize the impedance and to compare it with the results under different measuring conditions.
en-copyright=
kn-copyright=

en-aut-name=OkaHisao
en-aut-sei=Oka
en-aut-mei=Hisao
kn-aut-name=岡久雄
kn-aut-sei=岡
kn-aut-mei=久雄
aut-affil-num=1
ORCID=

en-aut-name=YamamotoTatsuma
en-aut-sei=Yamamoto
en-aut-mei=Tatsuma
kn-aut-name=山本辰馬
kn-aut-sei=山本
kn-aut-mei=辰馬
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical & Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical & Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=23
cd-vols=
no-issue=1
article-no=
start-page=49
end-page=60
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1988
dt-pub=19881122
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Transient Displacement Response to Pulse Excitations on Periodontal Tissues
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In the field of dental study it is most fundamental and necessary to estimate the condition of periodontium. In order to examine a mechanical characteristics of periodontium, the theoretical displacement response to periodontal mechanical model (three elements model) are strictly solved in case of some pulse excitations. Impact excitations (rectangular, triangular and half-cycle sine pulse) are given in physical and mathematical definitions and complete solutions to the impact excitations are provided. The triangular pulse excitation which is obtained by means of a fracture of pencil-lead is most suitable. The mechanical parameters of periodontium are given using this input excitation. This is experimentally confirmed by artificial tooth model. The obtained mechanical characteristic of the periodontal tissues can be applied to clinical diagnosis.
en-copyright=
kn-copyright=

en-aut-name=OkaHisao
en-aut-sei=Oka
en-aut-mei=Hisao
kn-aut-name=岡久雄
kn-aut-sei=岡
kn-aut-mei=久雄
aut-affil-num=1
ORCID=

en-aut-name=YamamotoTatsuma
en-aut-sei=Yamamoto
en-aut-mei=Tatsuma
kn-aut-name=山本辰馬
kn-aut-sei=山本
kn-aut-mei=辰馬
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=IsayamaYoshiharu
kn-aut-sei=Isayama
kn-aut-mei=Yoshiharu
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=3
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=24
cd-vols=
no-issue=1
article-no=
start-page=63
end-page=72
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1989
dt-pub=19891129
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Measurement of Emotional Response by Similarity in Patterns of Galvanic Skin Reflex
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=There is no doubt that many people feel the peace of mind or the pleasures of senses in appreciating music. But the estimation of the effect is very difficult and the objective estimation can be hardly done. This study proposed the objective estimating method of human emotion utilizing galvanic skin reflex (GSR) which reflects a human psychological activity. In this method, not by individual response, but by the series of response and pattern of appearance of GSR, the emotional response under appreciating music was investigated. In the case of appreciation of the same classic music to several subjects, the individual GSR responses are random and remarkable characteristic could not be find on the results. However, on the patterns of appearance of GSR, the patterns obtaining from the same generation are much similar each other and the patterns obtaining from different generation are less similar. It was cleared that the same music gave different effect on different generations.
en-copyright=
kn-copyright=

en-aut-name=YamamotoYoshitake
en-aut-sei=Yamamoto
en-aut-mei=Yoshitake
kn-aut-name=山本尚武
kn-aut-sei=山本
kn-aut-mei=尚武
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=IsshikiHiromi
kn-aut-sei=Isshiki
kn-aut-mei=Hiromi
aut-affil-num=2
ORCID=

en-aut-name=OkaHisao
en-aut-sei=Oka
en-aut-mei=Hisao
kn-aut-name=岡久雄
kn-aut-sei=岡
kn-aut-mei=久雄
aut-affil-num=3
ORCID=

en-aut-name=YamamotoTatsuma
en-aut-sei=Yamamoto
en-aut-mei=Tatsuma
kn-aut-name=山本辰馬
kn-aut-sei=山本
kn-aut-mei=辰馬
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Maizuru College of Technology, Maizuru

affil-num=3
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=4
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=24
cd-vols=
no-issue=1
article-no=
start-page=73
end-page=80
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1989
dt-pub=19891129
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Measurement of Microvibration on the Skin Surface
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=There is a small vibration which goes undetected by the naked eyes. It is called a microvibration (MV) or a minor tremor (MT). The MV on the body surface is expected to apply to a clinical examination of the autonomic nervous system. It is not cleared why and how the MV occurs, but there are many papers about its occurrence and clinical
application. In this study, MV measuring system, its estimation and basic characteristics are examined. The difference between head MV and thenar MV, individual MV and diurnal and seasonal change are discussed. The power spectrum of MV is obtained using an autoregressive model.
en-copyright=
kn-copyright=

en-aut-name=OkaHisao
en-aut-sei=Oka
en-aut-mei=Hisao
kn-aut-name=岡久雄
kn-aut-sei=岡
kn-aut-mei=久雄
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=IsayamaYoshiharu
kn-aut-sei=Isayama
kn-aut-mei=Yoshiharu
aut-affil-num=2
ORCID=

en-aut-name=YamamotoYoshitake
en-aut-sei=Yamamoto
en-aut-mei=Yoshitake
kn-aut-name=山本尚武
kn-aut-sei=山本
kn-aut-mei=尚武
aut-affil-num=3
ORCID=

en-aut-name=YamamotoTatsuma
en-aut-sei=Yamamoto
en-aut-mei=Tatsuma
kn-aut-name=山本辰馬
kn-aut-sei=山本
kn-aut-mei=辰馬
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=3
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=4
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=37
end-page=50
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19901214
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Second Harmonic Detection of Atmospheric Trace Gases with a Train-Pulse Driven Lead-Salt Tunable Diode Laser for an Operation at Peltier Cooling Temperature
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Is proposed a tunable diode laser absorption spectrometer system which employs a pulsed current to drive the diode laser still implementing a second-harmonic detection methods enhancing a signal to noise up to 104 times that the case without it. This system affords the lead-salt diode laser a higher operating temperature which allows a more compact deep cooling system. A principle is based on employing a gated integrator between the preamplifier and the lock-in amplifier. Investigations are made on the optimum selection of the gating aperture time interval as determined by response time of the infrared detector and the pulse width of the laser driving current.
en-copyright=
kn-copyright=

en-aut-name=BouzidiMoncef
en-aut-sei=Bouzidi
en-aut-mei=Moncef
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=KogaRyuji
en-aut-sei=Koga
en-aut-mei=Ryuji
kn-aut-name=古賀隆治
kn-aut-sei=古賀
kn-aut-mei=隆治
aut-affil-num=2
ORCID=

en-aut-name=WadaOsami
en-aut-sei=Wada
en-aut-mei=Osami
kn-aut-name=和田修己
kn-aut-sei=和田
kn-aut-mei=修己
aut-affil-num=3
ORCID=

en-aut-name=KagawaNaoki
en-aut-sei=Kagawa
en-aut-mei=Naoki
kn-aut-name=香川直己
kn-aut-sei=香川
kn-aut-mei=直己
aut-affil-num=4
ORCID=

en-aut-name=HaiXu
en-aut-sei=Hai
en-aut-mei=Xu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=KosakaMegumi
en-aut-sei=Kosaka
en-aut-mei=Megumi
kn-aut-name=小坂恵
kn-aut-sei=小坂
kn-aut-mei=恵
aut-affil-num=6
ORCID=

en-aut-name=SanoHiroya
en-aut-sei=Sano
en-aut-mei=Hiroya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=

affil-num=1
en-affil=
kn-affil=The Graduate School of Natural Science and Technology

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=3
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=4
en-affil=
kn-affil=The Graduate School of Natural Science and Technology

affil-num=5
en-affil=
kn-affil=Measurement and Test Center, North-East Normal University

affil-num=6
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=7
en-affil=
kn-affil=Faculty of Engineering, Fukuyama University
END

start-ver=1.4
cd-journal=joma
no-vol=24
cd-vols=
no-issue=2
article-no=
start-page=31
end-page=40
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19900329
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Basic Characteristics of Microvibration on the Skin Surface
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A small vibration on the body surface is expected to apply to a clinical examination of the autonomic nervous system. The vibration cannot be found by the naked eyes. It is called a microvibration (MV) or a minor tremor (MT). It is not cleared out why and how the MV occurs, but many papers about its occurrence and clinical application have been published. In this study, the typical spectrum of MV and the various causes of MV occurrence are studied. The relationships of MV with heart rate, muscle contraction and MV are discussed. The power spectrum of MV is obtained by using an autoregressive model.
en-copyright=
kn-copyright=

en-aut-name=OkaHisao
en-aut-sei=Oka
en-aut-mei=Hisao
kn-aut-name=岡久雄
kn-aut-sei=岡
kn-aut-mei=久雄
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=IsayamaYoshiharu
kn-aut-sei=Isayama
kn-aut-mei=Yoshiharu
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=NakauchiMakoto
kn-aut-sei=Nakauchi
kn-aut-mei=Makoto
aut-affil-num=3
ORCID=

en-aut-name=YamamotoTatsuma
en-aut-sei=Yamamoto
en-aut-mei=Tatsuma
kn-aut-name=山本辰馬
kn-aut-sei=山本
kn-aut-mei=辰馬
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=3
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=4
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=31
cd-vols=
no-issue=2
article-no=
start-page=21
end-page=27
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1997
dt-pub=19970328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Estimation of Internal Viscoelasticity by Mechanical Impedance
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In evaluating the stiffness of skin surface, internal structures such as bone and muscle often affect the measurements. In the present paper, acoustic random vibration is used to estimated the viscoelasticity of a silicone-gel model. This viscoelasticity, which includes two different stiffness strata, is first estimated using a mechanical impedance spectrum, which describes the relation between the depth and viscoelasticity of internal objects. This method is applied to the depth of a silicone-gel tumor model measured by ultrasound imaging and the viscoelasticity of internal gel can be accurately estimated.
en-copyright=
kn-copyright=

en-aut-name=OkaHisao
en-aut-sei=Oka
en-aut-mei=Hisao
kn-aut-name=岡久雄
kn-aut-sei=岡
kn-aut-mei=久雄
aut-affil-num=1
ORCID=

en-aut-name=NakamuraTakahiko
en-aut-sei=Nakamura
en-aut-mei=Takahiko
kn-aut-name=中村貴彦
kn-aut-sei=中村
kn-aut-mei=貴彦
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=31
cd-vols=
no-issue=2
article-no=
start-page=29
end-page=37
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1997
dt-pub=19970328
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Estimation of Loosening of Knee Joint Prosthesis
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Knee replacement arthroplasty is indicated for the patient with advanced knee pain, knee deformation, and knee functional disorder. The aim of this study was to estimate loosening after a knee replacement arthroplasty. Loosening is measured by a frequency response function, and mobility by random vibration. The modal parameters for the knee joint are obtained by applying a modal analysis to the frequency response function. The values decrease as the knee joint prosthesis loosened. These parameters serve as an index for the condition between a thighbone and the prosthesis. The various indexes will greatly clarify the stage of advance in the loosening of knee-joint prostheses.
en-copyright=
kn-copyright=

en-aut-name=OkaHisao
en-aut-sei=Oka
en-aut-mei=Hisao
kn-aut-name=岡久雄
kn-aut-sei=岡
kn-aut-mei=久雄
aut-affil-num=1
ORCID=

en-aut-name=OhshimaMasakazu
en-aut-sei=Ohshima
en-aut-mei=Masakazu
kn-aut-name=大島正和
kn-aut-sei=大島
kn-aut-mei=正和
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical & Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical & Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=32
cd-vols=
no-issue=1-2
article-no=
start-page=15
end-page=22
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1998
dt-pub=19980420
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Internal Structure and Viscoelasticity Estimation by a Mechanical Impedance - In case of a vibrating disk -
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In a stiffness estimation of living body, an internal structure under the skin influences the measured results. Because a different stiffness of body caused by bones and muscles is obtained. In this paper, by using a measurement system of mechanical impedance, the relations between a viscoelasticity and a distance from the surface of silicone-gel model is calculated. This relation is applied to silicone-gel tumor model and a shape and a viscoelasticity of semi-sphere silicone-gel tumous are estimated. The obtained results are expressed as a reconstructed 3-D image of shape / viscoelasticity. The revised curve-fitting of mechanical impedance and the cancellation of peripheral vibration influence are proposed in order to increase an estimation acccuracy.
en-copyright=
kn-copyright=

en-aut-name=MoriMasahiro
en-aut-sei=Mori
en-aut-mei=Masahiro
kn-aut-name=森政弘
kn-aut-sei=森
kn-aut-mei=政弘
aut-affil-num=1
ORCID=

en-aut-name=OkaHisao
en-aut-sei=Oka
en-aut-mei=Hisao
kn-aut-name=岡久雄
kn-aut-sei=岡
kn-aut-mei=久雄
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=33
cd-vols=
no-issue=2
article-no=
start-page=39
end-page=44
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1999
dt-pub=19990427
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Acousticmyogram Measured with Electrosimulation During Muscle Fatigue
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The acousicmyogram (AMG) is a mechanical phenomenon recorded at the surface of an active muscle. It is used to monitor force production, fatigue, and contractile properties of muscle. In this study, the new electrode with accelerometer for electrostimulation and acoustic detection. It consists of Ag-AgCl active electrode and solid-gel annular groud, and a very light piezoresistive accelerometer. The recorded AMG waveform depends on the pulse amplitude and duration of stimulation current and its lag from the electroatimulation is about 7 ms. The strengh-duration (S-D) curve (the threshold current for stimulation vs. pulse duration) describes the excitability of muscle. The left forearm is electrostimulated by using the same electrode and the muscle vibration (AMG) is recorded with accelerometer. During the muscle fatigue, the S-D curve changes and the current threshold increases under the same pulse duration. The rheobase of S-D curve increases gradually but the chronaxie hardly changes during muscle fatigue.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=YanagiMakoto
kn-aut-sei=Yanagi
kn-aut-mei=Makoto
aut-affil-num=1
ORCID=

en-aut-name=OkaHisao
en-aut-sei=Oka
en-aut-mei=Hisao
kn-aut-name=岡久雄
kn-aut-sei=岡
kn-aut-mei=久雄
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=33
cd-vols=
no-issue=2
article-no=
start-page=45
end-page=50
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1999
dt-pub=19990427
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Measurement System of Biomechanical Properties for Portable Use
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=It is difficult to evaluate a biomechanical properties quantitatively. The authors developed the measurement system of biomechanical properties formerly but it is on a large scale because of the use of personal computer. In this study, the portable measurement system of biomechanical impedance/mobility is developed. To establish a rapid measurement, a random vibration is adopted in input signal. The system consists of the measuring probe, amplifier, and a note-typed personal computer. The measurement probe is developed newly, and has an overall length of 9 ㎝ (without a handle) and a total weight of about 500 g. The measurement program is also developed and is available to any computer which is worked under MS DOS compatible in Windows 95/98 operating system. The biomechanical spectra of thigh, temple and forehead are obtained and they show three typical spectrum patterns.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=YamadaNobuya
kn-aut-sei=Yamada
kn-aut-mei=Nobuya
aut-affil-num=1
ORCID=

en-aut-name=OkaHisao
en-aut-sei=Oka
en-aut-mei=Hisao
kn-aut-name=岡久雄
kn-aut-sei=岡
kn-aut-mei=久雄
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Electrical and Electronic Engineering

affil-num=2
en-affil=
kn-affil=Department of Electrical and Electronic Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=24
cd-vols=
no-issue=2
article-no=
start-page=67
end-page=78
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1990
dt-pub=19900329
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Movement of Sand around Revetment under Water Pressure Variation
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Many hydraulic structures are damaged by under flood flow and storm waves year after year. Many cases of dike and breakwater failure are caused by the suck out of sand from behind the revetment. This type of failure will be in close relation to the dynamic behavior of sand bed around the revetment. In this paper, from this point of view, we investigated the basic characteristics of such sand movement by small model tests and tried to explain the hydro- and soil-mechanical mechanism of this phenomenon theoretically.
en-copyright=
kn-copyright=

en-aut-name=NagoHiroshi
en-aut-sei=Nago
en-aut-mei=Hiroshi
kn-aut-name=名合宏之
kn-aut-sei=名合
kn-aut-mei=宏之
aut-affil-num=1
ORCID=

en-aut-name=MaenoShiro
en-aut-sei=Maeno
en-aut-mei=Shiro
kn-aut-name=前野詩朗
kn-aut-sei=前野
kn-aut-mei=詩朗
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Civil Engineering

affil-num=2
en-affil=
kn-affil=Department of Civil Engineering
END

start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=1
article-no=
start-page=33
end-page=44
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1992
dt-pub=19921125
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Process Fault Diagnosis using Neural Networks and Fault Tree Analysis Information
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Neural nets have recently become the focus of much attention, largely because of their wide range of complex and nonlinear problems. This paper presents a new integrated approach using neural networks for diagnosing process failures. The fault propagation in process is modeled by causal relationships from the fault tree and its minimal cut sets. The measurement patterns required for training and testing the neural network were obtained from fault propagation model. The network is able to diagnose even in the presence of malfunction of certain sensors. We demonstrate via a nitric acid cooler process how the neural network can learn and successfully diagnose the faults.
en-copyright=
kn-copyright=

en-aut-name=ShimadaYukiyasu
en-aut-sei=Shimada
en-aut-mei=Yukiyasu
kn-aut-name=島田行恭
kn-aut-sei=島田
kn-aut-mei=行恭
aut-affil-num=1
ORCID=

en-aut-name=SuzukiKazuhiko
en-aut-sei=Suzuki
en-aut-mei=Kazuhiko
kn-aut-name=鈴木和彦
kn-aut-sei=鈴木
kn-aut-mei=和彦
aut-affil-num=2
ORCID=

en-aut-name=SayamaHayatoshi
en-aut-sei=Sayama
en-aut-mei=Hayatoshi
kn-aut-name=佐山隼敏
kn-aut-sei=佐山
kn-aut-mei=隼敏
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=2
en-affil=
kn-affil=Department of Mechanical Engineering

affil-num=3
en-affil=
kn-affil=Department of Mechanical Engineering
END