Author Inouye, Narinobu|
Published Date 1966
Publication Title Berichte des Ohara Instituts für landwirtschaftliche Biologie, Okayama Universität
Volume volume13
Issue issue3
Content Type Departmental Bulletin Paper
Author Inouye, Tadao|
Published Date 1964
Publication Title Berichte des Ohara Instituts für landwirtschaftliche Biologie, Okayama Universität
Volume volume12
Issue issue2
Content Type Departmental Bulletin Paper
Author Nishii, Kengo| Komatsu, Yasunobu| Yokomizo, Isao|
Published Date 2005-02-01
Publication Title 岡山大学農学部学術報告
Volume volume94
Issue issue1
Content Type Departmental Bulletin Paper
JaLCDOI 10.18926/15719
FullText URL Mem_Sch_Eng_OU_13_163.pdf
Author Tanada Yoshihiro| Sano Hiroya|
Abstract A new waveform analyzer based on the Walsh transform is developed and is applied to a real-time filtering of fast pulse signals, and the linear filterings of time signals through the Walsh transform is discussed. The analyzer converts a solitary waveform during 16 μs into the 16 Walsh amplitude spectra in a hybrid manner: it has the sequency band from 62.5 kzps to 500 kzps. The spectra are parallelly held during 16 μs by analog integrators, while serially displayed by the CRT, and one of them is digitally read out. The spectra of the test waves are measured within the error rate of several per cent. The analyzer is applied to the correlative detection of the photoelectric pulse signals in a gasspectroscopic system using a pulse laser, and there composes the matched filter, which is useful for measuring the signals superposed by Gaussian noises with a high accuracy. For the real-time filtering of fast signals, the arithmetic convolution and the frequency power spectra are approximated using the complex Walsh transform. These approximations are of practical use in 16 or 32 dimensions. Then, the matched filters for pulse peaking are given by the approximate convolution and by the dyadic convolution.
Publication Title Memoirs of the School of Engineering, Okayama University
Published Date 1979-03-05
Volume volume13
Start Page 163
End Page 180
ISSN 0475-0071
language 英語
File Version publisher
NAID 120002307519
Author Takata, Shingo| Ashida, Kozo| Hosaki, Yasuhiro| Hamada, Masanori| Iwagaki, Naofumi| Kikuchi, Hiroshi| Mitsunobu, Fumihiro|
Published Date 2008-03-01
Publication Title 岡大三朝医療センター研究報告
Volume volume76
Content Type Departmental Bulletin Paper
JaLCDOI 10.18926/17872
FullText URL 028_123_141.pdf
Author Okur Dincsoy Meltem|
Abstract This study begins with the historical telecommunication backgrounds of Japan, ROK, and Turkey. These countries have similarities in the development of telecommunication sector throughout history including the privatization of the sector. However, a major dissimilarity appeared from use of the technologies and producing new technologies by the worldwide companies. The developments in ICT have strong relations with the socio-economic development of these countries. For this reason, this study focuses on; (i) economic development indicators, (ii) ICT indicators, and (iii) Principle Component Analyses. With the findings, it is aimed to find out applicable policies for Turkey. Finally, it is clearly observed that Turkey has great potential in the near future as a rapid developing country and a growing ICT market for foreign market players. However, Turkey also needs to create her own powerful and effective worldwide companies.
Keywords ICT Development telecommunication innovation PCA Japan ROK Turkey
Publication Title 岡山大学大学院社会文化科学研究科紀要
Published Date 2009-11-27
Volume volume28
Start Page 123
End Page 141
ISSN 1881-1671
language 英語
Copyright Holders 岡山大学大学院社会文化科学研究科
File Version publisher
NAID 120002308925
JaLCDOI 10.18926/ESR/13948
FullText URL ESR_2_81.pdf
Author Osae, Shiloh| Kase, Katsuo| Yamamoto, Masahiro|
Abstract The Ashanti gold deposit at Obuasi occurs in the Early Proterozoic Birimian formation. The orebodies consist of gold-sulphides disseminated in metasediments and metavolcanics, and gold-bearing quartz veins. Gold occurs mainly as native gold normally with arsenopyrite, pyrrhotite and pyrite in the metasediments and metavolcanics. In the quartz veins, however, it is associated with tetrahedrite and sphalerite. Microprobe analysis of gold grains gave an Ag content of about 8 wt.%. Textural relationships among the various mineral associations suggest that pyrrhotite, pyrite, arse-nopyrite and possibly gold may have been formed esrlier in the paragenetic sequence. The precipitation of some amounts of gold may have occurred during the later stages of the mineralisation sequence. Average arsenopyrite composition determined from electron microprobe study is: Fe: 33.6 ± 0.5 at.%, As: 29.3 ± 1.2 at.%, S: 37.1 ± 1.1 at.%, This suggests an average temperature of formation of less than 300℃ for the sulphides and possibly the gold assuming equilibrium was attained between pyrite, pyrrhotite and arsenpopyrite. The δ34S values for sulphide mineral separates are in the range between -4.1 and -10.8%. The values were, however, constrained between -4.1 and -7.0%. The narrow range and the depleted nature of the δ34S values may suggest a sedimentary sourcc of sulphur which may have undergone high temperature homegenisation before deposition. Sulphides from quartz vein samples had the most depleted δ34S values. This may indicate a different mineralisation history of the sulohides in the quartz veins from those dissemi-nated in metasediments and metavolcanics.
Keywords Birimian Ashanti gold arsenopyrite
Publication Title Okayama University Earth Science Report
Published Date 1995-09-20
Volume volume2
Issue issue1
Start Page 81
End Page 90
ISSN 1340-7414
language 英語
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 120002310561
JaLCDOI 10.18926/ESR/56694
FullText URL esr_025_031_038.pdf
Author Amano, Hideki| Suzuki, Shigeyuki| Sato, Masaru| Yanagida, Makoto|
Abstract The study area is situated in Japan Sea side margin of the Shakotan Peninsula, Hokkaido, Japan, where MIS5e Terrace is preserved along the cost. Numbers of tight drilling have done to establish new method for terrace analysis. Buried wave cut terrace and sea cliff (when the MIS5e Terrace was formed) are reconstructed by distribution of the terrace deposits and these bottom of unconformity planes. The precise site and altitude of former shoreline was also obtained. Altitudes of the former shoreline from the 7 sections are almost the same 22 to 27m in height. Previous data of the height of shoreline are obtained from the topographic MIS5e Terrace surface. The altitudes have variation from 30m to 60m. It suggests that the traditional method for the MIS5e terrace analysis had some errors in the study area.
Keywords MIS5e marine terrace terrace deposits tight drilling shoreline
Publication Title Okayama University Earth Science Report
Published Date 2018-12-27
Volume volume25
Issue issue1
Start Page 31
End Page 38
ISSN 1340-7414
language 英語
Copyright Holders © 2018 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved
File Version publisher
JaLCDOI 10.18926/ESR/42457
Title Alternative 西南日本の熱変成超苦鉄質岩体中のかんらん石と輝石の組成変化に関する覚書
FullText URL esr_017_001_005.pdf
Author Nozaka, Toshio|
Abstract This short article presents some diagrams showing the compositional variations of primary and metamorphic olivine, orthopyroxene and clinopyroxene in peridotites and serpentinites from thermally metamorphosed ultramafic complexes in SW Japan. In contrast to olivine, which shows a gradual change of chemical composition corresponding with metamorphic grade, orthopyroxene and clinopyroxene show clear differences in composition between primary and metamorphic phases. Compared with primary pyroxenes, even though their compositions could be variable depending on original rock composition, metamorphic orthopyroxene and metamorphic clinopyroxene is clearly deficient in Cr(2)O(3) and CaO, and in Cr(2)O(3) and Al(2)O(3), respectively. These characteristics are useful for the discrimination between the pyroxenes of different origin.
Keywords chemical composition olivine orthopyroxene clinopyroxene metaperidotite
Publication Title Okayama University Earth Science Report
Published Date 2010-12-24
Volume volume17
Issue issue1
Start Page 1
End Page 5
ISSN 1340-7414
language 英語
Copyright Holders © 2010 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved
File Version publisher
NAID 120002753315
JaLCDOI 10.18926/fest/11556
FullText URL 003_011_024.pdf
Author Watanabe, Masaji|
Abstract We study a system that models a problem in which an oscillatory unit is coupled to a passive medium. We analyze the case in which an RCL circuit is coupled to an RC circuit. Some numerical results indicate when slow oscillations occur in coupled systems.
Keywords coupled circuits Van der Pol's equation slow oscillations
Publication Title 岡山大学環境理工学部研究報告
Published Date 1998-01-14
Volume volume3
Issue issue1
Start Page 11
End Page 24
ISSN 1341-9099
language 英語
File Version publisher
NAID 120002313697
JaLCDOI 10.18926/14960
Title Alternative n-3系脂肪散を強化した食事療法が有効と考えられた肺気腫の一例
FullText URL 069_049_056.pdf
Author Tsugeno, Hirofumi| Ashida, Kozo| Mitsunobu, Fumihiro| Mifune, Takashi| Okamoto, Makoto| Hosaki, Yasuhiro| Tanizaki, Yoshiro| Tsuji, Takao|
Abstract An effective treatment for the advanced stages of chronic obstructive pulmonary disease (COPD) has not been established yet. We report our recent experience of one patient with pulmonary emphysema treated by dietary supplementation of n-3 fatty acid for two months. He presented improvements in clinical symptoms and pulmonary function, and suppression of leukotriene B(4) generation by peripheral leukocytes. We consequently suppose that dietary treatment with n-3 fatty acids (perilla seed oil) may offer benefits for the treatment of pulmonary emphysema by competitively inhiabiting the conversion of arachidonicacid to leukotrienes and prostanoids.
Abstract Alternative 今回我々は,肺気腫の症例に対してn-3系脂肪酸を強化した食事療法をおこない,臨床症状,呼吸機能検査所見ともに速やかに改善を認め,同時に白血球のロイコトリエンB4産生能が著明に減少した一例を経験したので報告する。 症例は67歳,男性。主訴は労作時呼吸困難。【第一回目入院】3カ月間入院し,薬物療法,温泉を用いた理学療法を行った。自覚症状はやや改善が見られたが,呼吸機能検査所見の改善は得られなかった。【第二回目入院】1年後に再入院。n-3系脂肪酸強化食事療法も併用した。自覚症状および,呼吸機能検査上,FVC,FEV1.0,PEFなどに改善を認めた。n-3系脂肪酸はアラキドン酸代謝を通してロイコトリエン合成に関与すると推定されるが,経渦中に白血球のLTB4産生能の減少を認めた。この症例は肺気腫に対するn-3系脂肪酸強化食 事療法の有用性が示唆され,病態を考える上でも興味深いと考えられた。
Keywords pulmonary emphysema n-3 fatty acid leukotriene diet therapy
Publication Title 岡大三朝分院研究報告
Published Date 1998-12
Volume volume69
Start Page 49
End Page 56
ISSN 0918-7839
language 英語
File Version publisher
NAID 120002308253
JaLCDOI 10.18926/fest/11481
FullText URL 010_009_011.pdf
Author Kajiwara, Tsuyoshi| Sasaki, Toru|
Abstract An elementary proof of permanence for a simple mathematical model proposed by Nowak and Bangham. In many papers, permanence property is proved by theorems established by the general theory of dynamical system. In this paper, we present an elementary proof only using differential inequalities and the theory of linear differential equations with constant coefficients.
Keywords Permanence dynamical system pathogen
Publication Title 岡山大学環境理工学部研究報告
Published Date 2005-02-28
Volume volume10
Issue issue1
Start Page 9
End Page 11
ISSN 1341-9099
language 英語
File Version publisher
NAID 120002313596
JaLCDOI 10.18926/55773
FullText URL hss_045_019_026.pdf
Author Tanigaki, Shizuko| Kishida, Kensaku| Fujita, Akihito|
Publication Title Journal of Humanities and Social Sciences
Published Date 2018-03-22
Volume volume45
Start Page 19
End Page 26
ISSN 1881-1671
language 英語
Copyright Holders Copyright (c) 2018 岡山大学大学院社会文化科学研究科
File Version publisher
JaLCDOI 10.18926/14352
Title Alternative 環境教育に関する生徒の知識、意識、関心に関する調査研究―日本の普通科高校を例として―
FullText URL 006_021_032.pdf
Author Agubeko, Julius Kofi| Nasu, Etsuyo| Kasai, Tomomi| Watanebe, Toshio| Edagawa, Kazuko| Kita, Masakazu|
Abstract Education for Sustainable Development(ESD)-Environmental Education, has been a major concern at most UN summits. The 2002 Johannesburg Summit broadened the vision and re-affirmed the objective of the Millennium evelopment Goals (MDS) and proclaimed the Decade of Education for Sustainable Development for the period 2005-2014. This emphasized that education, is critical for promoting sustainable development and improving capacity of the people to address environment and development issues. This paper seeks to report, a finding on the level of student awareness and interests in environmental issues at a High School in Japan (a Super Science High School). A curricula unit was developed in the area of environmental education on soil. An actual chemistry class has been conducted in English. Pre & post lesson questionnaires were administered to the students. The result of the analysis indicates that, students are aware of environmental issues but need to be exposed to these issues in the form of activity-based classroom lessons. This we believe, will enable the students appreciate the fact that ESD is a life-wide and lifelong endeavor which challenges individuals, institutions and societies to view tomorrow as a day that belongs to all of us. This we presume is the main challenge of the MDS.
Abstract Alternative 持続可能な開発と環境教育は世界的な課題であり、2002年のヨハネスブルク環境サミットでも議題として採り上げられ、特に教育によって持続可能な社会の発展を進めることが合意された。本研究は日本のある高校で1年間にわたって、土を題材とした単元を実施し、その事前事後に環境問題に関する調査を行い、生徒の環境に関する知識、意識、関心についてどのような水準にあり、授業によってどうかわるかを調査し、明らかにした。
Keywords Environmental Education (環境教育) Awareness (意識) Students' interest (関心) Curriculum (環境教育カリキュラム) Soil
Publication Title 岡山大学教育実践総合センター紀要
Published Date 2006-03-25
Volume volume6
Issue issue1
Start Page 21
End Page 32
ISSN 1346-3705
language 英語
File Version publisher
NAID 120002308079
JaLCDOI 10.18926/fest/11424
FullText URL 011_009_014.pdf
Author Nishina Tomohiko| Tian Tian Chen| Fujita Kazutoshi| Ishikawa, Hirofumi|
Abstract The red fox (Vulpes vulepes) and the vole ( Clethrionomys refocanus) are principal hosts of Echinococcus multilocularis in Hokkaido, Japan. How protoscoleces increases in voles and the level of immunity in foxes remain unknown because of the lack of survey data, so that it is important to clarify these mecahnisms in order to develop control strategies against E. multilocularis. In this study, the growth of protoscoleces in the infected voles was approximated as the logistic curve, the level of immunity in the fox was assumed to depend on the experience of the infection with E. multilocularis, and the worm burden in the fox was assumed to be governed by the amount of protoscoleces in the vole. Our model showed that the population densities of the hosts and the level of immunity influenced the prevalence of the E. multilocularis.
Keywords Echinococcus multilocularis protoscoleces immunity worm burden stochastic model
Publication Title 岡山大学環境理工学部研究報告
Published Date 2006-03-15
Volume volume11
Issue issue1
Start Page 9
End Page 14
ISSN 1341-9099
language 英語
File Version publisher
NAID 120002314034
JaLCDOI 10.18926/okadaironkou/60025
FullText URL okadaironkou_43_62_56.pdf
Author 江口 泰生|
Publication Title 岡大国文論稿
Published Date 2015-03-31
Issue issue43
Start Page 62
End Page 56
ISSN 0386-3123
language 日本語
File Version publisher
NAID 40020533688
JaLCDOI 10.18926/53835
Title Alternative A.Tatarinov ”Lexicon” Notes 4( K~Л)
FullText URL hss_040_001_012.pdf
Author Eguchi, Yasuo|
Publication Title 岡山大学大学院社会文化科学研究科紀要
Published Date 2015-11-25
Volume volume40
Start Page 1
End Page 12
ISSN 1881-1671
language 日本語
Copyright Holders Copyright © 2015 岡山大学大学院社会文化科学研究科
File Version publisher
NAID 120005749812
JaLCDOI 10.18926/54196
Title Alternative A.Tatarinov ”Lexicon” Notes 4(М~Н)
FullText URL hss_41_001_012.pdf
Author Eguchi, Yasuo|
Publication Title 岡山大学大学院社会文化科学研究科紀要
Published Date 2016-03-25
Volume volume41
Start Page 1
End Page 12
ISSN 1881-1671
language 日本語
Copyright Holders Copyright © 2016 岡山大学大学院社会文化科学研究科
File Version publisher
NAID 120005749812
JaLCDOI 10.18926/15702
FullText URL Mem_Sch_Eng_OU_13_53.pdf
Author Funabiki Shigeyuki| Nakanishi Senichiro| Himei Toyoji|
Abstract An ac chopper circuit, which chops an ac voltage in a complete cycle for any lagging reactive load, is devised. The circuit is constructed of two ac-switches composed of power transistors and diodes. The load voltage is smoothly controlled by varying the time ratio of ac-switch. Transistors operate in a highfrequency chopping mode, thereby the ripples of the source current and the load current are easily filtered. Furthermore the input power factor of this model is better than that of the thyristor phase control circuit. In this paper, the construction and the driving method of this model are described.
Publication Title Memoirs of the School of Engineering, Okayama University
Published Date 1979-03-05
Volume volume13
Start Page 53
End Page 64
ISSN 0475-0071
language 英語
File Version publisher
NAID 120002307832
Author Okamoto, Ken'ichi| Ozawa, Junjiro|
Published Date 1971
Publication Title Berichte des Ohara Instituts für landwirtschaftliche Biologie, Okayama Universität
Volume volume15
Issue issue2
Content Type Departmental Bulletin Paper