Journal of Japan Industrial Management Association
Online ISSN : 2187-9079
Print ISSN : 1342-2618
ISSN-L : 1342-2618
Volume 48 , Issue 2-3
Showing 1-13 articles out of 13 articles from the selected issue
  • Type: Cover
    1997 Volume 48 Issue 2-3 Pages Cover3-
    Published: August 15, 1997
    Released: November 01, 2017
    JOURNALS FREE ACCESS
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  • Type: Cover
    1997 Volume 48 Issue 2-3 Pages Cover4-
    Published: August 15, 1997
    Released: November 01, 2017
    JOURNALS FREE ACCESS
    Download PDF (842K)
  • Type: Index
    1997 Volume 48 Issue 2-3 Pages Toc2-
    Published: August 15, 1997
    Released: November 01, 2017
    JOURNALS FREE ACCESS
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  • Akiko UEDA, Katsuhiro SAKAMOTO, Masashige TSUJI
    Type: Article
    1997 Volume 48 Issue 2-3 Pages 63-73
    Published: August 15, 1997
    Released: November 01, 2017
    JOURNALS FREE ACCESS
    Recently it is important to build a Total Flexible Real-time production management system. But no generator has seem developed yet for such a system So this study has 3 purposes as follows. 1) we design the concept of such a generator by computer language approaches, 2) we suggest how to build this generator, and 3) we present the architecture of a constructed production management system to be run on this generator, and develop a prototype generator. According to this study, our concept has been proven to be effective as a method of building a future production management system.
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  • Ruengsak KAWTUMMACHAI, Kazumasa OHASHI, Shigeji MIYAZAKI
    Type: Article
    1997 Volume 48 Issue 2-3 Pages 74-80
    Published: August 15, 1997
    Released: November 01, 2017
    JOURNALS FREE ACCESS
    Recently, FMS, which is a mid-volume, mid variety production system, has become a most practical production system. Nevertheless, there are some problems in the step of FMS scheduling due to the complexity of the system. Especially, as an on-line system, FMS has to decide the production schedule within a very short period. Among the scheduling rules applied to FMSs, the meta scheduling method is now being most widely used. In this paper, we applied the meta heuristic scheduling method to a model of flow-shop type FMS. Backward scheduling was used to realize the JIT's theory. As the objective function, we adopt the minimizing of the total cost calculated through the schedule of orders. Scheduling methods were constructed and tested in the FMS model through simulations. Lastly, the results of simulation test given by each method were compared to each other to study the performance of the proposed method.
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  • Hiroyuki NAGASAWA
    Type: Article
    1997 Volume 48 Issue 2-3 Pages 81-88
    Published: August 15, 1997
    Released: November 01, 2017
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    An approximated semi-open queueing network (SQN) model was introduced to formulate the capacity design problem of a Flexible Manufacturing System (FMS) where jobs arrive according to a Poisson process. Any job arriving when the capacity of the FMS is fully utilized may be refused to accept and transferred to an alternative manufacturing system. An efficient algorithm was proposed for determining the optimal values in the number of stations, the total number of machining centers (being equally allocated among stations), the number of pallets available in the FMS and the warehouse-capacity, to maximize the overall profit of this system including the alternative system.
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  • Tsutomu TABE, Keiya YAMASAKI, Masaharu KIRA, Minoru KURANISHI
    Type: Article
    1997 Volume 48 Issue 2-3 Pages 89-98
    Published: August 15, 1997
    Released: November 01, 2017
    JOURNALS FREE ACCESS
    In recent refuse incineration plants, an automatic combustion control system (ACC) is introduced for efficient plant operation and pollution prevention. However everything can not always be automated in refuse combustion. The person in charge who is responsible for it has no control and set up such target values as the amount of refuse to be disposed, the amount of steam generated and the remaining oxygen concentration, depending on circumstances. There are various target values in this task, i.e., maintaining the amount of refuse disposed, securing the necessary amount of steam generation and restraining the amount of NO_x and CO generated. He must do the work considering these factors carefully ; nevertheless there are various conflicts and differences in measuring scales of these target values, so he needs effective information to set up most suitable parameters. This paper clarifies the method to make a combustion control support system that can present the necessary information to set up the combustion control parameters based on Saaty's AHP. A prototype system made by us could be confirmed to be effective as a result of testing it.
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  • Rui NAKAMURA, Hirozou OKUMURA, Masatoshi KITAOKA
    Type: Article
    1997 Volume 48 Issue 2-3 Pages 99-115
    Published: August 15, 1997
    Released: November 01, 2017
    JOURNALS FREE ACCESS
    This paper presents the grey method to analysis with difference equation on the relation between cumulative input and output in cumulative curve. GW(1,2) and GW (1,1) models are applied for the representaion of characteristics of cumulative curve. Cumulative curve is made from a number of different types curve. The boundary points for cumulative curve are found from the second difference computation of cumulative data. This paper also discussed how this boundary points were applied for the computation of GW(1,2) and GW(1,1) models. Inventory volume and stay time in systems are computed from the proposed model. Laplace transformation can be applied for representation of this cumulative curve.
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  • Hiroshi OHTA, Shoji YAMASHITA
    Type: Article
    1997 Volume 48 Issue 2-3 Pages 116-124
    Published: August 15, 1997
    Released: November 01, 2017
    JOURNALS FREE ACCESS
    This paper considers the problem of joint determination of an economic target mean and an inspection plan for a "the larger, the better" characteristic under the constrains that the true quality characteristic can be known only by a test of destruction, and only the lower specification limit is given. If the quality characteristic of the product given a lower specification limit is below the limit, the product is a defective. Therefore, if we set the target mean larger than the lower specification limit and make the inspection, we can decrease the loss cost by defectives. But, if we set too large a target mean and make any excessive inspection, the production and inspection costs increase. Thinking of, this paper presents the procedure for determining simultaneously economic target mean and inspection plan so as to minimize the total expected cost including production cost, inspection cost and loss cost by defectives.
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  • Takashi OHTANI, Hidetomo ICHIHASHI, Kazunori NAGASAKA, Tetsuya MIYOSHI
    Type: Article
    1997 Volume 48 Issue 2-3 Pages 125-132
    Published: August 15, 1997
    Released: November 01, 2017
    JOURNALS FREE ACCESS
    An adaptive learning network has been proposed, in which the Radial Basis Functions networks were applied to the partial descriptions of network type GMDH. In choosing the number of its layers, we can apply the statistical information criterion, such as the AIC and MDL. But the theoretical problems concerned with the local minima and nonuniqueness of parameters have been pointed out in the literature. In this paper, we apply the Differential Unbiasedness Criteria (DUC) which is based on the cross validation method whose checking samples are composed of the difference of paired outputs. The effectiveness of DUC is shown by numerical examples.
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  • Yasuhide NAGAMORI, Hitoshi TSUBONE
    Type: Article
    1997 Volume 48 Issue 2-3 Pages 133-139
    Published: August 15, 1997
    Released: November 01, 2017
    JOURNALS FREE ACCESS
    This paper clarifies the relationship among the unfilled-rate for make-to-stock (MTS) products, the average lead time for make-to-order (MTO) products and the slack capacity as buffer in common with MTS and MTO products in the production system with a combination of MTS and MTO products and present a guide for making policies for the manufacturing system. As a result, we present a guide for making the manufacturing goals such as setting the manufacturing leadtime for MTO products and the unfilled-rate for MTS products to gain an advantage in competitive business environment. A hierarchical production planning model is introduced for the production system which is composed of two-stage fabrication/assembly process. The slack capacity is set as a decision variable at a higher planning level and the charged rate of MTO products to the quantity of MTS products for the production process is set as a decision variable at a lower planning level, and we analyze how these two variables affect the unfilled-rate for MTS products and the average lead time for MTO products.
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  • Takashi IROHARA, Shigeaki SUZUKI, Kazuho YOSHIMOTO
    Type: Article
    1997 Volume 48 Issue 2-3 Pages 140-149
    Published: August 15, 1997
    Released: November 01, 2017
    JOURNALS FREE ACCESS
    The facility layout problem can be formulated as a combinatorial optimization problem to minimize the total cost owing to material flow. It is impossible to apply optimal method to the problem because of calculation time. Then, sub-optimal method (CARD-SA) using Simulated Annealing for optimization was proposed. However, it is quite difficult to apply CARD-SA to the large size problem like the number of department is over 100. For this reason, we improve the CARD-SA to increase the number of department and to extend the variety of the department shape. Computational experiments suggest that this algorithm is quite effective.
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  • Type: Appendix
    1997 Volume 48 Issue 2-3 Pages App2-
    Published: August 15, 1997
    Released: November 01, 2017
    JOURNALS FREE ACCESS
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