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Article type: Cover
1989 Volume 40 Issue 2 Pages
Cover1-
Published: June 15, 1989
Released on J-STAGE: December 17, 2018
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Article type: Cover
1989 Volume 40 Issue 2 Pages
Cover2-
Published: June 15, 1989
Released on J-STAGE: December 17, 2018
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Article type: Index
1989 Volume 40 Issue 2 Pages
Toc1-
Published: June 15, 1989
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Article type: Appendix
1989 Volume 40 Issue 2 Pages
App1-_vi_
Published: June 15, 1989
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Satoshi TANGE, Shigeyuki NAKAI
Article type: Article
1989 Volume 40 Issue 2 Pages
67-73
Published: June 15, 1989
Released on J-STAGE: December 17, 2018
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The Systematic Layout Planning (S. L. P) technique by R. Muther has been prized for its convenience and practice. But the logical basis of this technique constructed by empirical laws is still not clear. In order to further evolve the plant layout study, we should deeply attack "S. L. P" from the research viewpoint. This paper deals with making the layout design process clear based on the preceding papers [1] and [2], thereby, applying a systematic logical analysis for the purpose of probing and summarizing the given proposition in S. L. P technique as a pioneer work.
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Hisao ISHIBUCHI, Masaharu OTA, Katundo HITOMI
Article type: Article
1989 Volume 40 Issue 2 Pages
74-79
Published: June 15, 1989
Released on J-STAGE: December 17, 2018
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In lot production, the inventory-holding cast, the sed-up cost and the production time vary according to the lot size. So, when deciding the product-mix, the lot sizing should be taken into account. In this paper the product-mix problem is investigated when the selected products are produced on a single machine in a common production cycle. A model for determining the product-mix and the cycle length for the selected products is constructed ; then, the model is analyzed to obtain optimal solutions. In addition, a computational algorithm is proposed, and a numerical example is demonstrated.
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Tadayuki MASUI
Article type: Article
1989 Volume 40 Issue 2 Pages
80-85
Published: June 15, 1989
Released on J-STAGE: December 17, 2018
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In the previous paper, we presented an algorithm for determining the potimal inventory levels by using the concept of marginal profit function in One-item N-stage Series-type inventory model with storage constraints. In this paper, M-item 2-stage inventory model is discussed. First, we introduce the optimal conditions at each stock point named "equilibrium condition of marginal profit per unit-storage-constraint." Next, by using these conditions, we show that the problem of maximizing the expected profit function under constraints is able to be treated as the problem of solving the simultaneous equations.
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Michitoshi OHISHI
Article type: Article
1989 Volume 40 Issue 2 Pages
86-89
Published: June 15, 1989
Released on J-STAGE: December 17, 2018
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The productivity improvement is being tried in Brazil today. From the point of view that Japanese enterprises have got better productivities through their administrative control technics, we have conducted a research on them and done a comparison with real situation of the Brazilian enterprises. In this paper, we present a three dimensinal method of self-evaluating activities.
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Kenji SEKOGUCHI, Shigeji MIYAZAKI, Hiroshi OHTA
Article type: Article
1989 Volume 40 Issue 2 Pages
90-96
Published: June 15, 1989
Released on J-STAGE: December 17, 2018
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Under the production to order environments, each completed product should be stored in the shop through the completion time to the due date of it (inventory duration of products). In this paper, the product inventory cost is defined as this duration multiplied by the holding cost per unit of time. An optimal algorithm to minimize the total inventory cost of products with sequence independent and dependent setup times is developed. An experience on computational time of the proposed algorithm indicates the effect by the variation of setup times and holding costs per unit of time. An application of the algorithm to a real problem is shown.
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Hiroshi YAMASHITA, Mamoru OZEKI
Article type: Article
1989 Volume 40 Issue 2 Pages
97-101
Published: June 15, 1989
Released on J-STAGE: December 17, 2018
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Merit rating is the main source of information in personnel management. Rating by human being can certify only the level of ordinal scale. For this information to be used effectively, rating data must be converted into interval scale. In this paper, we propose a new rating model usign the optimal scaling. By this model we can both estimate the weights applied to the rating elements and convert the rating data into the interval scale. Then rating factors and rating scale are examined through the results of this rating model.
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Kiyoshi HORIE
Article type: Article
1989 Volume 40 Issue 2 Pages
102-114
Published: June 15, 1989
Released on J-STAGE: December 17, 2018
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The consciousness in employees to the strategy of Japanese labor management was surveyed and it was found that the strategy was supported in the consciousness of employees. At the same time what the strategy is intended was discussed and it was concluded that the strategy is intended to employ employees in total human existence. Then the employees' "view of work place" and "their consciousness to humanity at work place" deduced from the intention of the strategy were surveyed and their existence was confirmed from the employees' responses.
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Chin Min ZHAO, Masatoshi KITAOKA
Article type: Article
1989 Volume 40 Issue 2 Pages
115-120
Published: June 15, 1989
Released on J-STAGE: December 17, 2018
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The expression of fuzzy quantification theory IV as proposed before is derived from the variance expression which does not contain the membership function in the constraint condition. When we consider the fuzzy quantification theory IV, it should be derived from the variance expression which contains a membership function. This paper derives the fuzzy quantification expression which contains a fuzzy membership function in variance ezpression. We propose the new method for fuzzy quantification theory IV and show numerical examples.
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Toshio AKAI, Yutaka KATSURA, Shizuo MAWATARI, Yoshiaki TOYODA
Article type: Article
1989 Volume 40 Issue 2 Pages
121-125
Published: June 15, 1989
Released on J-STAGE: December 17, 2018
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The class size imbalance of students registered for different classes in the same required subject presents a great problem at universities from the viewpoint of educational equipment use, educational effectiveness, allotment of time, ets. It is difficult to perform this work clerically when the number of registered students is large. In this paper, we developed a computer system to allocate the adequate number of registered students to various calsses according to their particular wishes. This system was applied to the allocation of atudents to physical education classes and satisfactory results were obteined.
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Article type: Appendix
1989 Volume 40 Issue 2 Pages
126-129
Published: June 15, 1989
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Article type: Appendix
1989 Volume 40 Issue 2 Pages
130-131
Published: June 15, 1989
Released on J-STAGE: December 17, 2018
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Article type: Appendix
1989 Volume 40 Issue 2 Pages
132-
Published: June 15, 1989
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Article type: Appendix
1989 Volume 40 Issue 2 Pages
App2-
Published: June 15, 1989
Released on J-STAGE: December 17, 2018
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