JaLCDOI 10.18926/fest/11564
フルテキストURL 005_047_056.pdf
著者 大竹 正徳| 大坪 龍介| 冨田 誠| 田中 豊|
抄録 Main content of this paper is to classify IQ individuals into two categories of normal and abnormal groups. It is too difficult to divide IQ individuals into two groups of normal IQ group and abnormal group because of sparse number of cases with mental retardation. Therefore, we examined a normality of 1673 IQ individuals, but a significant difference was noted for the IQ data. The lowest three mentally retarded cases of less than or equal to 59 IQ score were excluded, the IQ data then fitted to a normal distribution well. The critical value which minimizes the probability of classification is obtained on the basis on an approximate technique with regard to normality. An approximate probability of misclassification for individuals at random from mixture of two normal populations is 25.5%.
キーワード Compound distribution normality Prenatal exposure IQ misclassification
出版物タイトル 岡山大学環境理工学部研究報告
発行日 2000-02-29
5巻
1号
開始ページ 47
終了ページ 56
ISSN 1341-9099
言語 English
論文のバージョン publisher
NAID 120002313674
JaLCDOI 10.18926/15552
フルテキストURL Mem_Sch_Eng_OU_1_91.pdf
著者 Kikuchi Susumu| Matuda Motoi|
抄録 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)
出版物タイトル Memoirs of the School of Engineering, Okayama University
発行日 1966-03-31
1巻
1号
開始ページ 91
終了ページ 97
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002307525
JaLCDOI 10.18926/15662
フルテキストURL Mem_Sch_Eng_OU_9_1_1.pdf
著者 Hirose Koji| Fujiwara Tadao|
抄録 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%.
出版物タイトル Memoirs of the School of Engineering, Okayama University
発行日 1974-07-20
9巻
1号
開始ページ 1
終了ページ 9
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002307952
JaLCDOI 10.18926/15650
フルテキストURL Mem_Sch_Eng_OU_7_2_49.pdf
著者 Hosokawa Norio| Kodera Yoichi|
抄録 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.
出版物タイトル Memoirs of the School of Engineering, Okayama University
発行日 1972-10-13
7巻
2号
開始ページ 49
終了ページ 60
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002307885
JaLCDOI 10.18926/19692
フルテキストURL Mem_Fac_Eng_OU_33_2_111.pdf
著者 Fujihara Yutaka| 宗澤 良臣| 大崎 紘一|
抄録 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.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 1999-04-27
33巻
2号
開始ページ 111
終了ページ 119
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002309035
JaLCDOI 10.18926/15693
フルテキストURL Mem_Sch_Eng_OU_10_2_81.pdf
著者 榊原 精|
抄録 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.
出版物タイトル Memoirs of the School of Engineering, Okayama University
発行日 1976-01-27
10巻
2号
開始ページ 81
終了ページ 111
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002307359
JaLCDOI 10.18926/15573
フルテキストURL Mem_Sch_Eng_OU_2_35.pdf
著者 Wada Tsutomu| Ohgishi Shinji|
抄録 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.
出版物タイトル Memoirs of the School of Engineering, Okayama University
発行日 1967-04-01
2巻
1号
開始ページ 35
終了ページ 38
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002307455
JaLCDOI 10.18926/15683
フルテキストURL Mem_Sch_Eng_OU_5_27.pdf
著者 Kikuchi Susumu| Osaki Hirokazu| Ohgishi Shinji|
抄録 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.
出版物タイトル Memoirs of the School of Engineering, Okayama University
発行日 1970-09-01
5巻
1号
開始ページ 27
終了ページ 30
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002307841
JaLCDOI 10.18926/15564
フルテキストURL Mem_Sch_Eng_OU_2_5.pdf
著者 Yamada Toshiro| Kani Kouki| Nishijima Kunihiro|
抄録 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.
出版物タイトル Memoirs of the School of Engineering, Okayama University
発行日 1967-04-01
2巻
1号
開始ページ 5
終了ページ 11
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002307333
JaLCDOI 10.18926/15695
フルテキストURL Mem_Sch_Eng_OU_10_2_113.pdf
著者 Kono Ichiro| Sellmeijer J.B.|
抄録 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.
出版物タイトル Memoirs of the School of Engineering, Okayama University
発行日 1976-01-27
10巻
2号
開始ページ 113
終了ページ 136
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002307163
JaLCDOI 10.18926/19610
フルテキストURL Mem_Fac_Eng_OU_33_1_31.pdf
著者 Iwamoto Hidehisa| 大崎 紘一| 梶原 康博| 宗澤 良臣| Hashimoto Atsufumi| 関 州二|
抄録 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.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 1998-11-30
33巻
1号
開始ページ 31
終了ページ 37
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002309084
JaLCDOI 10.18926/15586
フルテキストURL Mem_Sch_Eng_OU_2_88.pdf
著者 Monobe Kazuo| Fujiwara Yasuo|
抄録 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
出版物タイトル Memoirs of the School of Engineering, Okayama University
発行日 1967-04-01
2巻
1号
開始ページ 88
終了ページ 92
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002307315
JaLCDOI 10.18926/fest/11434
フルテキストURL 012_051_061.pdf
著者 Liu Xianbing| 田中 勝| 松井 康弘|
抄録 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.
キーワード Waste electronic home appliances Management framework Assessment Beijing China
出版物タイトル 岡山大学環境理工学部研究報告
発行日 2007-03-15
12巻
1号
開始ページ 51
終了ページ 61
ISSN 1341-9099
言語 English
論文のバージョン publisher
NAID 120002313493
JaLCDOI 10.18926/15463
フルテキストURL Mem_Fac_Eng_OU_28_2_59.pdf
著者 西垣 誠| Sun Yao| 河野 伊一郎|
抄録 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.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 1994-03-15
28巻
2号
開始ページ 59
終了ページ 75
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002307850
JaLCDOI 10.18926/1424
フルテキストURL 20_0089_0102.pdf
著者 ジャン テキン アブドゥルカディール|
出版物タイトル 岡山大学大学院文化科学研究科紀要
発行日 2005-11
20巻
1号
開始ページ 89
終了ページ 102
言語 Japanese
論文のバージョン publisher
NAID 120002305916
JaLCDOI 10.18926/58042
著者 INAMORI, Takao|
抄録 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.
キーワード managerial perception organisational performance cross-cultural work environment Pygmalion effect Golem effect.
出版物タイトル 岡山大学全学教育・学生支援機構教育研究紀要
発行日 2019-12-30
4巻
開始ページ 134
終了ページ 148
ISSN 2432-9665
言語 Japanese
論文のバージョン publisher
JaLCDOI 10.18926/fest/11449
フルテキストURL 009_019_026.pdf
著者 Sakamura Kenichi| Dong Wang Xiao| 石川 洋文|
抄録 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.
キーワード AES Chosen plaintext attack Linear cryptanalysis
出版物タイトル 岡山大学環境理工学部研究報告
発行日 2004-02-27
9巻
1号
開始ページ 19
終了ページ 26
ISSN 1341-9099
言語 English
論文のバージョン publisher
NAID 120002313376
JaLCDOI 10.18926/47023
フルテキストURL mfe_36_2_015_042.pdf
著者 Ohtani, Ryuji| Konishi, Masami| Imai, Jun| Nishi, Tatsushi|
抄録 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.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 2002-03
36巻
2号
開始ページ 15
終了ページ 42
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 80015471209
JaLCDOI 10.18926/55364
フルテキストURL biess_1_17.pdf
著者 Morioka, Akemi| INUGAI-DIXON, Carol| Mita, Kaoru| Hoshino, Yuko|
抄録 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。
キーワード CLIL content integration thinking collaboration
出版物タイトル 岡山大学全学教育・学生支援機構教育研究紀要
発行日 2016-12-30
1巻
開始ページ 17
終了ページ 28
ISSN 2432-9665
言語 English
論文のバージョン publisher
NAID 120006348267
JaLCDOI 10.18926/fest/55731
フルテキストURL fest_023_023_048.pdf
著者 Enver Erdin Dinçsoy| Fumikazu, Ichiminami| Meltem Okur Dinçsoy|
抄録 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.
キーワード cultivated area cereals buckwheat beans potatoes Okayama prefecture
出版物タイトル 岡山大学環境理工学部研究報告
発行日 2018-03
23巻
1号
開始ページ 23
終了ページ 48
ISSN 13419099
言語 English
論文のバージョン publisher
NAID 120006414149