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Article type: Cover
1984 Volume 35 Issue 2 Pages
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Published: June 15, 1984
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Article type: Cover
1984 Volume 35 Issue 2 Pages
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Published: June 15, 1984
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Article type: Appendix
1984 Volume 35 Issue 2 Pages
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Article type: Index
1984 Volume 35 Issue 2 Pages
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Article type: Appendix
1984 Volume 35 Issue 2 Pages
62-
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Shizuo SENJU
Article type: Article
1984 Volume 35 Issue 2 Pages
63-64
Published: June 15, 1984
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Mitsuo NAGAMACHI
Article type: Article
1984 Volume 35 Issue 2 Pages
65-71
Published: June 15, 1984
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Introduction of instruments with microelectronics including industrial robot is increasing in Japanese enterprises, but those usage has both sides of merit and demerit, and especially, it influences strongly the personnal and labor policy. We have the problems of worker rearrangement, night shift, treatment of older workers, accident, and so forth. The present paper refers to these problems and suggests an aspect of the solution in terms of Industrial Engineering and Human Factors.
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Yukinobu KIMURA
Article type: Article
1984 Volume 35 Issue 2 Pages
72-77
Published: June 15, 1984
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The writer of this report spent his sabbatical year at Northwestern Univeristy, Evanston, Illinois. The former half of the report is devoted to the introduction of research activities at the Center for the Interdisciplinary Study of Science and Technology and its related facilities. The latter half is devoted to a brief survey about the concems and interests for Japanese Management Style in the academic and business society in the U.S.
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Toshiro KUROZAWA, Ken'ichi MORI, Shigeo KASE
Article type: Article
1984 Volume 35 Issue 2 Pages
78-83
Published: June 15, 1984
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Spurious components of economical time series often lead to the incorrect identification of regression model. In this paper the new method based on the weighted mean of the residual variance distribution is developed to identify the polynomial regression model for time series of seasonal variations wiht spurious data. The simulation and teh application of a set of economical time series express that the proposed method is effective to many time series of small size.
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Hiroshi OHTA
Article type: Article
1984 Volume 35 Issue 2 Pages
84-90
Published: June 15, 1984
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This paper presents a method fo analyzing the concentration of air pollutant NO_2 on the basis of the doubly exponential distribution. The MVLUE (Minimum Variance Linear Unbiased Estimator) is applied to the estimation of parameters of the distribution. The proposed method is expected to be a simple procedure for checking the air quality by small size of data under the given environmental standards.
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Ratana-Amornpin DUMRONGKIAT, Takao ENKAWA, Masao AKIBA
Article type: Article
1984 Volume 35 Issue 2 Pages
91-97
Published: June 15, 1984
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This study introduces some order-picking methods on the basis of a combination of both single and total order-picking methods and investigates suitable methods for given distribution center conditions. For this purpose, order-picking is considered as a dynamic transformation process from order-informaiton to items-marshalling and packaging, and a model is formulated using Q-GERT network. From simulation experiments performed by using standard data obtained from memo-motion study of order-picking related operations and established levels of experimental factors obtained from questionnaire results, it can be concretely pointed out that the advantages of various order-picking methods differ greatly depending on conditions. Also, order-picking design policies were classified according to conditions.
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Yoshimasa NAKAMURA
Article type: Article
1984 Volume 35 Issue 2 Pages
98-103
Published: June 15, 1984
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The concepts of operations on fuzzy numbers have been introduced by L.A.Zadeh using the Extension Principle. Since then, several authors have investigated properties and proposed applications of fuzzy numbers. This paper considers basic operations on fuzzy numbers by using α-level sets, which have been treated by D. Dubois and H. Prade in a practical way and propose some operations rules on fuzzy numbers in a simple and easy way.
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Eiichi KOYANO
Article type: Article
1984 Volume 35 Issue 2 Pages
104-110
Published: June 15, 1984
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The purpose of this study is to examine the correlation structure between pulse speed variability curve and input human error curve in order to develop a new prediction method for input human errors. From 393 experiments with 40 subjects who performed typewriting and calculating for 400 man-hours, it was found out that almost all experiments presented a statistical significant (less than the 1% level) correlation between the two curves on condition of pulse onward difference (POD) existed between both curves and the POD has a great influence on the (+) and (-) of coefficient of correlation between both curves.
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LIN Bang-Ju, Jin-Woo LEE, Shizuo SENJU
Article type: Article
1984 Volume 35 Issue 2 Pages
111-116
Published: June 15, 1984
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So far, several researches on replacement intervals of equipment in connection with technical progress have been carried out. However, on general and practical point of view, that problem has not been well analyzed yet. In this paper we deal with the problem in which technical improvements appear in equipment acquisition costs and annual operating expenses. We have tried to work out the optimum replacement intervals either in the case that the technology always keeps improving or that some time in the future technical progress stops.
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Shizuo SENJU
Article type: Article
1984 Volume 35 Issue 2 Pages
117-122
Published: June 15, 1984
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Koya KISHIDA, Iwao OHASHI, Akiyuki SAKUMA, Ryokichi FUJIKAWA
Article type: Article
1984 Volume 35 Issue 2 Pages
123-126
Published: June 15, 1984
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Article type: Appendix
1984 Volume 35 Issue 2 Pages
127-128
Published: June 15, 1984
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Article type: Appendix
1984 Volume 35 Issue 2 Pages
129-131
Published: June 15, 1984
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Article type: Appendix
1984 Volume 35 Issue 2 Pages
App2-
Published: June 15, 1984
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