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Article type: Cover
1983 Volume 34 Issue 1 Pages
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Article type: Cover
1983 Volume 34 Issue 1 Pages
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Article type: Appendix
1983 Volume 34 Issue 1 Pages
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Article type: Index
1983 Volume 34 Issue 1 Pages
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Article type: Appendix
1983 Volume 34 Issue 1 Pages
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Article type: Appendix
1983 Volume 34 Issue 1 Pages
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Article type: Appendix
1983 Volume 34 Issue 1 Pages
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Katsundo HITOMI
Article type: Article
1983 Volume 34 Issue 1 Pages
5-15
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Seiji KUROSU
Article type: Article
1983 Volume 34 Issue 1 Pages
16-23
Published: April 15, 1983
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One of the most important problems for a scheduling system in job shop environment is the difficulty of estimating a reasonable shop time. Among several elements which affect the shop time, queue time cannot so easily be estimated as others. In this paper a method for estimating mean queue time in a network or a tandem work center is considered. It is necessary to apply this method to clarify the effect of autocorrelated interarrival time of a job on the queue time. Simulation analysis shows that the effect is not negligible according to the condition of the work center.
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Shizuo SENJU, Kaung-Chen CHEN, Hideo MIYOSHI, Kiyohiro YABUNAKA
Article type: Article
1983 Volume 34 Issue 1 Pages
24-30
Published: April 15, 1983
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In the case of buying and selling commodity succesively such as newspaper-boy problem, the risk of insolvency is not necessarily reduced by duying commodity in a small quantity every time. In this paper we present three approximate methods to minimize the risk of insolvency on the long-term point of view. To generate and analyze these methods the geometric approach is introduced and some examples are illustrated. By comparing with the strict solution using Markov analysis, the characteristic and limintation of these methods are investigated. As a result, these approximate methods are verified to be practical although they will not always give the optimum solution in the stric sence.
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Nobuto NAKAMURA, Tetsuro SHINGU
Article type: Article
1983 Volume 34 Issue 1 Pages
31-37
Published: April 15, 1983
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This paper presents a mathiematical programming model and a solution algorithm for MRP. First, it presents the conceptional model for total MRP, and decomposes it into the master production scheduling model and the lot size scheduling model. Then, both models are respectively formulated into the detailed models. Finaly, the solution algorithm is described, and a simple illustratioin is presented. These results indicate the feasibility of the algorithm.
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Nobuto NAKAMURA, Tetsuro SHINGU
Article type: Article
1983 Volume 34 Issue 1 Pages
38-43
Published: April 15, 1983
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This paper presents the lot size scheduling model with overtime for MRP, and makes it clear that the model is decomposed into the unconstrained lot size scheduling model and the overtime model. The heuristic approach is developed for obtaining the practical good solution rather than the best solution, considering the trade-off for each model.
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Ken MURASUGI, Shin-ichi MIKI
Article type: Article
1983 Volume 34 Issue 1 Pages
44-50
Published: April 15, 1983
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This paper examines by an empirical approach the problem of need priorities, need hierarchy and characteristic of basic needs on Maslow's needs theory. We analyzed the relation between a desire and a provision in the desire-provision system of morale survey to examine these problems. The results show that the physiological and safety needs are a hygienic need, the esteem and salf-actualization needs are a motivative need, and the social needs are a relatedness need. Consequently, this paper presents the M-R-H hypotheses of needs.
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Sennosuke KURIYAMA, Toyokazu NOSE, Jun KIKUKAWA
Article type: Article
1983 Volume 34 Issue 1 Pages
51-56
Published: April 15, 1983
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Previously, KURIYAMA proposed the Parts-Oriented Production Management System which solved the production efficiency problem in order to satisfy the various desires of the consumer. For improving the service ratio and reducing the stock and production setup costs, we need flexible production schedules which can sufficiently meet the diversified demand. In this paper, on the POPMS which consists of standardized component parts, we propose the modified Wagner-Whitin algorithm which introduces the cost of schedule changes and the index indicating the dead stock danger into the optimal production schedules. Furthemore, the effectiveness of the proposed model formulation is proven by the use of a numerical example.
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Hideo TANAKA, Satoru UEJIMA, Kiyoji ASAI
Article type: Article
1983 Volume 34 Issue 1 Pages
57-62
Published: April 15, 1983
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The evaluation problems of the multiple attribute altematives such as ranking the commodities can be solved by the linear weighting method. The major problem is how we should decide the weight parameters of the attributes. The weight parameters are considered fuzzy by nature. A method is presented for calculating the evaluation of alternatives. The fuzzy sets used here are confined to the type of triangles for the sake of simplicity. It leads to obtain the fuzzy evaluation as a function. Our emphasis is that we should use the fuzzy model as long as our problem under consideration has essentially fuzziness.
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Shinpei MINATO
Article type: Article
1983 Volume 34 Issue 1 Pages
63-72
Published: April 15, 1983
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The pupose of this paper is to try Systems Approach to productiion of process industries with "Production Systems Engineering" in which integrated systematic study of production technology and management is concerned. In business field, production and management systems are interdependent on each other, so I think that a strategic and integrated approach to functions is more useful than a deductive approach to simplified business model. This paper is the Blue Print of Concept Model, available to a systematic approach to process industries. In this paper, I describe "Process Systems, Production Control Systems, Production Planning Systems and Production Systems" which as the base line, range through Hardware, Software to Conception on process industries.
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Article type: Appendix
1983 Volume 34 Issue 1 Pages
73-
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Article type: Appendix
1983 Volume 34 Issue 1 Pages
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1983 Volume 34 Issue 1 Pages
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Article type: Appendix
1983 Volume 34 Issue 1 Pages
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1983 Volume 34 Issue 1 Pages
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Article type: Appendix
1983 Volume 34 Issue 1 Pages
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Article type: Appendix
1983 Volume 34 Issue 1 Pages
76-77
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Article type: Appendix
1983 Volume 34 Issue 1 Pages
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