JaLCDOI 10.18926/15552
FullText URL Mem_Sch_Eng_OU_1_91.pdf
Author Kikuchi Susumu| Matuda Motoi|
Abstract As has been told, industry is roughly composed of three elements: man, money and machine. Along with a macroscopically slow development in social democracy on each microscopically quantum stage, management and administration in almost enterprise they have been exceptionally concerned with one after another. From machine to man, from man to money and then from money to machine, cyclically the tentative subject has been transfered as though we are nondescending the spiral stair with ever divergent radii. (Fig.1)
Publication Title Memoirs of the School of Engineering, Okayama University
Published Date 1966-03-31
Volume volume1
Issue issue1
Start Page 91
End Page 97
ISSN 0475-0071
language 英語
File Version publisher
NAID 120002307525
JaLCDOI 10.18926/15662
FullText URL Mem_Sch_Eng_OU_9_1_1.pdf
Author Hirose Koji| Fujiwara Tadao|
Abstract This paper deals with the abatement of the dust, which is produced from combustion of wood which is used in the process in the manufacture of "Bizen Yaki", by means of combustion. The experimental furnace disposal for after combustion, is added to "Nobori Gama". The measurements are done at both states without and with the furnace disposal. The results of the experiments show that process exhaust gases containing combustible dust can be destroyed effectively by the furnace disposal and the obtained dust abatement efficiency is about 80%.
Publication Title Memoirs of the School of Engineering, Okayama University
Published Date 1974-07-20
Volume volume9
Issue issue1
Start Page 1
End Page 9
ISSN 0475-0071
language 英語
File Version publisher
NAID 120002307952
JaLCDOI 10.18926/15650
FullText URL Mem_Sch_Eng_OU_7_2_49.pdf
Author Hosokawa Norio| Kodera Yoichi|
Abstract This paper deals with the stress-strain curves of single crystal and polycrystal considering the workhardening and the anisotropy which is due to the difference of workhardening on each slip system. The results obtained are summarized as follows: 1) The equations of workhardening on each slip system are derived according to the dislocation theory. 2) And it is found that the stress-strain curves of Cu single crystal and polycrystal calculated by using the workhardening equation with proper coefficients agree well with the experimental values.
Publication Title Memoirs of the School of Engineering, Okayama University
Published Date 1972-10-13
Volume volume7
Issue issue2
Start Page 49
End Page 60
ISSN 0475-0071
language 英語
File Version publisher
NAID 120002307885
JaLCDOI 10.18926/19692
FullText URL Mem_Fac_Eng_OU_33_2_111.pdf
Author Fujihara Yutaka| Munesawa, Yoshiomi| Osaki, Hirokazu|
Abstract Our country faces a serious problem of the environmental pollution by the production and the large quantity consumption of the industry product. The thoroughness of resources recycling has become necessary to solve these problems. As for the product design and the production control, how productivity should be improved has been discussed with extreme emphasis. But from now, as for the product design, both assemblability and disassemblability must be taken into consideration at the same time. And also in production management, it must be investigated how the products can be recycled in the low cost. Therfore, the facility layout method with two phases in recycling plant, which is composed of both the procedure for the layout of facility group and the procedure for the layout of intermal facility group by the optimal solution method and the suboptimal solution method by neural network is proposed in this paper.
Publication Title Memoirs of the Faculty of Engineering, Okayama University
Published Date 1999-04-27
Volume volume33
Issue issue2
Start Page 111
End Page 119
ISSN 0475-0071
language 英語
File Version publisher
NAID 120002309035
JaLCDOI 10.18926/15693
FullText URL Mem_Sch_Eng_OU_10_2_81.pdf
Author Sakakibara, Akira|
Abstract To acquire information on the interaction between oxygen molecules in solid phase, studies have been carried out on the magnetic properties of solid oxygen, oxygen-argon and oxygen-fluorine. Review of the studies on the interaction between oxygen molecules is cited. Magnetic susceptibility was measured by the Faraday method as a function of temperature from 12 K to the melting point of them. Pure oxygen both in α and β phase indicates paramagnetism corresponding to long-range antiferromagnetic order. Oxygen -argon mixtures of 92~66 mol% oxygen content indicate large susceptibility corresponding to δ phase, which can be interpreted in terms of the cluster of oxygen molecules in trimer. Small paramagnetism was found for the oxygenfluorine mixture even as dilute as 10 mol% oxygen content, which may be due to the strong antiferromagnetic interaction. This can be interpreted in terms of super-exchange interaction between oxygen molecules via fluorine molecule.
Publication Title Memoirs of the School of Engineering, Okayama University
Published Date 1976-01-27
Volume volume10
Issue issue2
Start Page 81
End Page 111
ISSN 0475-0071
language 英語
File Version publisher
NAID 120002307359
JaLCDOI 10.18926/15573
FullText URL Mem_Sch_Eng_OU_2_35.pdf
Author Wada Tsutomu| Ohgishi Shinji|
Abstract An analysis is attempted of the human operator's responses to the sinusoidal input and the random input. The human operator's characteristics in the closed loop system are represented by the Bode diagram. This diagram shows that the human operator's response to the random input containing only those frequency components lower than 4 rad/s is almost in accordance with his response to the siunsoidal input of the same frequency range.
Publication Title Memoirs of the School of Engineering, Okayama University
Published Date 1967-04-01
Volume volume2
Issue issue1
Start Page 35
End Page 38
ISSN 0475-0071
language 英語
File Version publisher
NAID 120002307455
JaLCDOI 10.18926/15683
FullText URL Mem_Sch_Eng_OU_5_27.pdf
Author Kikuchi Susumu| Osaki Hirokazu| Ohgishi Shinji|
Abstract The work load given to workers by a monotonous task was investigated. Their load was obtained by measuring the flicker value and observing its fluctuation pattern. Each flicker fluctuation was classified into one of the three patterns. It was found that the mental load of the subject carrying out the task by himself tends to become lighter according as the speed increases, while the mental load of the subject doing the task with his companion does not show this tendency. On the other hand, the scores of the disposition tests were analyzed with regard to the flicker fluctuation pattern by using the discriminant function.
Publication Title Memoirs of the School of Engineering, Okayama University
Published Date 1970-09-01
Volume volume5
Issue issue1
Start Page 27
End Page 30
ISSN 0475-0071
language 英語
File Version publisher
NAID 120002307841
JaLCDOI 10.18926/15564
FullText URL Mem_Sch_Eng_OU_2_5.pdf
Author Yamada Toshiro| Kani Kouki| Nishijima Kunihiro|
Abstract In order to clarify the sealing mechanism of an oil seal, it is necessary to know its fundamental properties and movement now in action. There are two subjects in this study. One is to reveal the temperature dependence of fundamental properties, mainly wringing force, average wringing pressure and lip contact width, and the other is to know the lip temperature now in action and to know how the lubrication is carried out at the lip portion. The measurements were carried out with our devised instruments for the former subject and with a thermocouple for the latter. A simple analysis of the lip temperature obtained was made in order to know a mechanism of the lubrication. The results indicate that with the rise of temperature of oil seal, the wringing force and the average wringing pressure decrease because of the reduction of rubber elastic modulus and of thermal expansion of spring, and the lip contact width hardly varies, and also indicate that under a constant temperature of lubricating oil, the lip temperature never rises so high as in the case of free rising of oil temperature, and that the fluid lubrication is carried out at the lip.
Publication Title Memoirs of the School of Engineering, Okayama University
Published Date 1967-04-01
Volume volume2
Issue issue1
Start Page 5
End Page 11
ISSN 0475-0071
language 英語
File Version publisher
NAID 120002307333
JaLCDOI 10.18926/15695
FullText URL Mem_Sch_Eng_OU_10_2_113.pdf
Author Kono Ichiro| Sellmeijer J.B.|
Abstract This paper deals with the groundwater flow in a semi-confined aquifer causing the phenomena of consolidation and free surface lowering. Since the main effect of consolidation has taken place before noticeable lowering of the free surface, one may solve each phenomenon on its own. The real solution may be obtained by the principle of superposition. However, the solution for lowering the free surface is delayed due to the cosolidation by a certain timelapse, depending on the placecoordinates.
Publication Title Memoirs of the School of Engineering, Okayama University
Published Date 1976-01-27
Volume volume10
Issue issue2
Start Page 113
End Page 136
ISSN 0475-0071
language 英語
File Version publisher
NAID 120002307163
JaLCDOI 10.18926/19610
FullText URL Mem_Fac_Eng_OU_33_1_31.pdf
Author Iwamoto Hidehisa| Osaki, Hirokazu| Kajihara, Yasuhiro| Munesawa, Yoshiomi| Hashimoto Atsufumi| Seki, Shuji|
Abstract The nurse supporting robot system to prepare and hand surgical instruments to a surgeon is proposed to reduce work of nurse in a surgical operation. In this paper, the surgical instrument recognition system (SIRS) is developed to hand the surgical instruments to a surgeon by the robot. The characteristics ot the instruments are area of the instruments, ratio of minimum center-contour distance to maximum one and its outline contour, are recognized by using the image processing. Kinds of the instruments are distinguished by these characteristics.
Publication Title Memoirs of the Faculty of Engineering, Okayama University
Published Date 1998-11-30
Volume volume33
Issue issue1
Start Page 31
End Page 37
ISSN 0475-0071
language 英語
File Version publisher
NAID 120002309084
JaLCDOI 10.18926/15586
FullText URL Mem_Sch_Eng_OU_2_88.pdf
Author Monobe Kazuo| Fujiwara Yasuo|
Abstract Single crystals of two crystatalline forms, α and γ, in nylon 12 were obtained from dilute solutions. The single crystals of γ-form from diols solutions are ribbon like lamellae in shape, and that of α-form obtained from solution in water-formic acid are parallelogramic. Electron diffraction study shows that chain packings in single crystals of two crystalline forms are very similar to those of nylon 6, respectively
Publication Title Memoirs of the School of Engineering, Okayama University
Published Date 1967-04-01
Volume volume2
Issue issue1
Start Page 88
End Page 92
ISSN 0475-0071
language 英語
File Version publisher
NAID 120002307315
JaLCDOI 10.18926/fest/11434
FullText URL 012_051_061.pdf
Author Liu Xianbing| Tanaka, Masaru| Matsui, Yasuhiro|
Abstract Serious adverse impacts on the environment and human health from the recycling and disposal of electronic waste have occurred in the past and continue to occur in China today, due to the lack of a national management strategy. With aiming to support the management strategy development, a study was carried out to plan and quantitatively evaluate the optional management frameworks for the selected five main types of large electronic home appliances in Beijing, the capital city and a typically big municipality in China. This paper outlined the main findings yielded from the series of assessment studies which started from the generation amount prediction and material flow analysis of the used electronic appliances, planning and optimization of the collection & transportation frameworks and ended at the economic evaluation of the optional recycling processes for the waste appliances. Although the revenue could be expected from the result of isolated evaluation of the recycling processes, the entire system will be economically unavailable if the used appliances are still collected from the owners at current prices. The traditional understanding of householders on the values of their used appliances should be changed in Beijing and China as a whole. Establishment of a formal collection system that could take back the used appliances at lower prices (less than 40% of the current level) is the key for the construction of a formal management framework with sustainability.
Keywords Waste electronic home appliances Management framework Assessment Beijing China
Publication Title 岡山大学環境理工学部研究報告
Published Date 2007-03-15
Volume volume12
Issue issue1
Start Page 51
End Page 61
ISSN 1341-9099
language 英語
File Version publisher
NAID 120002313493
JaLCDOI 10.18926/15463
FullText URL Mem_Fac_Eng_OU_28_2_59.pdf
Author Nishigaki, Makoto| Sun Yao| Kohno, Iichiro|
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.
Publication Title Memoirs of the Faculty of Engineering, Okayama University
Published Date 1994-03-15
Volume volume28
Issue issue2
Start Page 59
End Page 75
ISSN 0475-0071
language 英語
File Version publisher
NAID 120002307850
JaLCDOI 10.18926/1424
FullText URL 20_0089_0102.pdf
Author ジャン テキン アブドゥルカディール|
Publication Title 岡山大学大学院文化科学研究科紀要
Published Date 2005-11
Volume volume20
Issue issue1
Start Page 89
End Page 102
language 日本語
File Version publisher
NAID 120002305916
JaLCDOI 10.18926/58042
Author INAMORI, Takao|
Abstract This study attempts to develop a management model at cross-cultural work environment, which explains how managers’ perception affects their organisational performance. The model is created based on findings of quantitative research conducted toward Japanese aid project managers working in developing countries. As a result of cluster analysis, four types of aid project managers were identified. The model clarified how four types of aid project managers perceive, behave and consequently lead to either high or low performance organisation. Finally, this study indicates that fostering and maintaining positive perception are a key for successful organisation.
Keywords managerial perception organisational performance cross-cultural work environment Pygmalion effect Golem effect.
Publication Title Bulletin of Institute for Education and Student Services, Okayama University
Published Date 2019-12-30
Volume volume4
Start Page 134
End Page 148
ISSN 2432-9665
language 日本語
File Version publisher
JaLCDOI 10.18926/fest/11449
FullText URL 009_019_026.pdf
Author Sakamura Kenichi| Dong Wang Xiao| Ishikawa, Hirofumi|
Abstract We have investigated the linear cryptanalysis of AES cipher in this article. As the previous encryption standard DES could be broken by the linear cryptanalysis, NIST decided a new encryption standard AES in 2000. We try to analyze one and two rounds AES cipher by the method of the linear cryptanalysis and learn the limits of this mehtod. AES cipher provides a conspicuous difficulty in breaking its keys because of small bias of its S-box. We report the experimental results of success rate and are led to conclusion that this method would not work well on more than 3 rounds to break keys.
Keywords AES Chosen plaintext attack Linear cryptanalysis
Publication Title 岡山大学環境理工学部研究報告
Published Date 2004-02-27
Volume volume9
Issue issue1
Start Page 19
End Page 26
ISSN 1341-9099
language 英語
File Version publisher
NAID 120002313376
JaLCDOI 10.18926/47023
FullText URL mfe_36_2_015_042.pdf
Author Ohtani, Ryuji| Konishi, Masami| Imai, Jun| Nishi, Tatsushi|
Abstract In this paper, we studied a planning and scheduling of production system considering demand changes. In the proposed system, planning part determines lot-size and amount of jobs in production. On the other hand, scheduling part determines the production sequence of jobs. In order to treat with the demand changes, both planning and scheduling should work well simultaneously. In the proposed system, preset and real time production control system is newly constructed from the view point of adaptive control. In the system, production planning is modified when the difference between production amount and demand becomes large. Moreover, production schedule is regenerated when the determined schedule is deviated from the prospected one. The scheduling system is characterized as the autonomous decentralized optimization system where each job works as agent and agent searches its appropriate starting time of processing. The effectiveness of the proposed system is confirmed by numerical examples.
Publication Title Memoirs of the Faculty of Engineering, Okayama University
Published Date 2002-03
Volume volume36
Issue issue2
Start Page 15
End Page 42
ISSN 0475-0071
language 英語
File Version publisher
NAID 80015471209
JaLCDOI 10.18926/55364
FullText URL biess_1_17.pdf
Author Morioka, Akemi| INUGAI-DIXON, Carol| Mita, Kaoru| Hoshino, Yuko|
Abstract 現在多くの日本の大学では、グローバルな教育内容と環境を促進することが火急の課題である。岡山大学では英語教育の質の向上と授業科目の英語での提供の2つに取り組んでいるが、その実践においてCLIL(内容言語統合型学習)が有用であると考えられる。また日本の高等教育機関において、CLIL を既に実践あるいは導入を検討している教育関係者と経験やアイデアを共有し、ネットワークを作って今後の情報交換を行うことも非常に重要である。そこで岡山大学では2016 年2 月にフィンランドから2名の講師を招き、3日間のCLIL ワークショップを開催した。この論文では4大学の参加者4名がワークショップで紹介された2つの大学の異なったCLIL モデルについて報告する。またワークショップで行った様々なアクティビティを通して参加者が学び取ったことや成果についても記述する。
Keywords CLIL content integration thinking collaboration
Publication Title Bulletin of Institute for Education and Student Services, Okayama University
Published Date 2016-12-30
Volume volume1
Start Page 17
End Page 28
ISSN 2432-9665
language 英語
File Version publisher
NAID 120006348267
JaLCDOI 10.18926/fest/55731
FullText URL fest_023_023_048.pdf
Author Enver Erdin Dinçsoy| Fumikazu, Ichiminami| Meltem Okur Dinçsoy|
Abstract The contribution of cereals to economies is undoubtedly very important and has many dimensions in terms of use of cultivated areas, agricultural production, nutrition, domestic and foreign trade and national income. In this study, we examined the characteristics of agricultural production in Okayama prefecture from the viewpoint of grain, beans and potatoes excluding rice, wheat and barley in the long term. These are undoubtedly supposed to have a certain role in complementing the function as the staple food of rice and wheat, etc.Also, according to our literature investigations, researchers have not focused on this context for Okayama Prefecture by not spending enough attention in the past. Therefore, we focus on these subjects in this paper by examining a historical significance. It is observed that some planting area and yield of crops have drastically reduced in Okayama prefecture.
Keywords cultivated area cereals buckwheat beans potatoes Okayama prefecture
Publication Title 岡山大学環境理工学部研究報告
Published Date 2018-03
Volume volume23
Issue issue1
Start Page 23
End Page 48
ISSN 13419099
language 英語
File Version publisher
NAID 120006414149
JaLCDOI 10.18926/15791
FullText URL Mem_Sch_Eng_OU_16_1_31.pdf
Author Kaneda Masahiro| Akahori Ichiro|
Abstract System data handling in CAD sY8tem for designing control systems is discussed. A man-oriented data description method for a wide sense block diagram and its automatical transformation into the state space description is proposed. This work is a part of CAD system: CADPACS-T which has been under development for designing control systems in our laboratory. The proposal data description for a wide sense block diagram has the following features: 1) to correspond nicety to the block diagram and to be suitable for a man-oriented expression, 2) to express even a large scale system compactly by partitioning into some subsystems defined externally, 3) to be easy to add /or alter the input-output terminals, parameters or elements, and 4) to need not to assign the connection relationship explicitly owing to adopting the input-output terminal/line names. Moreover, system data handling in designing the PI controller for an actual boiler system expressed in a block diagram is taken up as an example.
Publication Title Memoirs of the School of Engineering, Okayama University
Published Date 1982-03-01
Volume volume16
Issue issue1
Start Page 31
End Page 45
ISSN 0475-0071
language 英語
File Version publisher
NAID 120002308002