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Article type: Cover
1991 Volume 42 Issue 1 Pages
Cover1-
Published: April 15, 1991
Released on J-STAGE: December 17, 2018
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Article type: Cover
1991 Volume 42 Issue 1 Pages
Cover2-
Published: April 15, 1991
Released on J-STAGE: December 17, 2018
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Article type: Cover
1991 Volume 42 Issue 1 Pages
Cover3-
Published: April 15, 1991
Released on J-STAGE: December 17, 2018
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Article type: Appendix
1991 Volume 42 Issue 1 Pages
App1-
Published: April 15, 1991
Released on J-STAGE: December 17, 2018
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Kazushige TAKEOKA, Shinichi TAGAWA, Masahiro AKUTSU
Article type: Article
1991 Volume 42 Issue 1 Pages
1-7
Published: April 15, 1991
Released on J-STAGE: December 17, 2018
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The purpose of this study is to find the optimum speed of work in visual inspection task conducted by a tact inspection system through paced work experiments. In this system, works are fed at regular interval to the subject by a belt conveyor which repeats stop and run, and while each work stops, it is inspected. The time required for inspection, the rate of inspection errors and others were measured. The structure of inspection task conducted by the tact inspection system was clarified through an analysis of the experiment results. Based on the structure, the optimum speed of work was found.
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Daiju NAKAGIRI, Sennosuke KURIYAMA, Toyokazu NOSE
Article type: Article
1991 Volume 42 Issue 1 Pages
8-14
Published: April 15, 1991
Released on J-STAGE: December 17, 2018
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In general, materials and manufacturing plannings are established under the assumption that the required parts and materials are prepared before manufacturing. For most cases, leadtime off-sets for parts and/or materials are created deterministically, but they are not reasonable. Therefore, in this paper, estimated stochastic leadtimes were introduced and optimal safety leadtimes were derived with respect to each level of components and enditmes. Also, illustrative experiments were shown with respect to stochastic procurement leadtimes and parts standardization to investigate the influences upon the given leadtimes.
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Katsuhiko TAKAHASHI
Article type: Article
1991 Volume 42 Issue 1 Pages
15-22
Published: April 15, 1991
Released on J-STAGE: December 17, 2018
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In order to analyze the inventory variance of the production inventory system with limited capacity, this paper studies the simulation experiment and the estimation method for the inventory variance. The problems in estimating the inventory variance from simulation output, i.e.the transient period, the autocorrelation, and the distribution of time series of inventory variance, are revealed. For the problems, this paper proposes the estimation method for the inventory variance with the deletion of transient period and the batch means method, and evaluates the proposed method empirically. The results show that the proposed method can estimate the inventory variance with the intended reliability maintained
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Yanwen DONG, Masatoshi KITAOKA
Article type: Article
1991 Volume 42 Issue 1 Pages
23-29
Published: April 15, 1991
Released on J-STAGE: December 17, 2018
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In this paper, a heuristic algorithm is proposed for solving the scheduling problem in a multi-stase flow shop with parallel machines to minimize the average flow time. The problem is presented by an Integer Programming formulation and optimal or near-optimal solutions can be obtained by the following iterative procedure : (1) to produce a Lagrangean problem and solve it by decomposition; (2) using a heuristic algorithm to find a feasible solution based on the solution of (1); (3) to evaluate the optimality of the feasible solution and adjust the Lagrangean multipliers. Finally a numerical example is given to illustrate the proposed approach.
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Shusaku HIRAKI, Rintaro MURAMATSU
Article type: Article
1991 Volume 42 Issue 1 Pages
30-36
Published: April 15, 1991
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In designing a parts procurement system in the knockdown production system, it is necessary to consider the effects of transportation lead time and include adequate buffer capacity in order to maintain the system reliability. In this paper, we develop a parts procurement system based on the concepts of JIT production system, which incorporates a restriction of on-hand inventory and a backorder function which modifies the backlog carried over from the last period, and includes two types of buffer capacities, that is safety stock and emergency delivery which will assure the system reliability at any pre-determined level.
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Shigeru YURIMOTO, Tadayuki MASUI
Article type: Article
1991 Volume 42 Issue 1 Pages
37-44
Published: April 15, 1991
Released on J-STAGE: December 17, 2018
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Manufacturers' direct investment in the U.S. has grown dramatically over the last decade. This paper is concerned with the planning of a decision support system for plant location and its applications in the U.S. region. Decision process of plant location in the U.S. is divided into two stages. One is the selection of the states, and another is the selection of the sites inside the state. We elaborated the location factors in both selection processes. And two kinds of databases are built based on a number of the regional indices. Then, we considered the algorithm of selection process using the AHP and developed the decision support system. Finally, this system is applied to the manufacturing firms which are located in the U.S. and the validity of this system is evaluated.
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Kiyoshi HORIE
Article type: Article
1991 Volume 42 Issue 1 Pages
45-49
Published: April 15, 1991
Released on J-STAGE: December 17, 2018
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The purpose of this paper is to propose the reinforcement strategy of Japanese leadership's ability. It is concluded that Japanese leadership's ability is based on the capacity of the "acceptance". Then it is concluded that this capacity is acquired through the "self-insight" by the introspection. Therefore, the strategy that leaders should acquire their leadership's ability by controlling their "projection" and going toward the way of the "individualization" through the "self-insight" is proposed.
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Junsei TSUKUDA
Article type: Article
1991 Volume 42 Issue 1 Pages
50-56
Published: April 15, 1991
Released on J-STAGE: December 17, 2018
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Corporate goals for long-range planning are multi-dimensional in nature. A 'system of goals(SSG)' prepared using the 'framework of goals(FG)' based on the necessary and sufficient 'dimensions of goals (DG)' will facilitate goal-setting work of top-management. In this paper 1)the concepts of DG, scale of goals(SCG), FG and SSG are defined. Three goal-setting steps using SSG are shown. 2)Requirements for FG are studied. A new FG is prepared using six DG based on inputs and outputs of corporate activities and two kinds of SCG. 3) To avoid some problems of conventional financial goals based on the financial accounting system, a new system of finacial goals is presented based on a long-term corporate performance measurement system.
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Article type: Appendix
1991 Volume 42 Issue 1 Pages
57-58
Published: April 15, 1991
Released on J-STAGE: December 17, 2018
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Article type: Appendix
1991 Volume 42 Issue 1 Pages
59-60
Published: April 15, 1991
Released on J-STAGE: December 17, 2018
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Article type: Appendix
1991 Volume 42 Issue 1 Pages
61-
Published: April 15, 1991
Released on J-STAGE: December 17, 2018
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Article type: Appendix
1991 Volume 42 Issue 1 Pages
62-63
Published: April 15, 1991
Released on J-STAGE: December 17, 2018
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Article type: Appendix
1991 Volume 42 Issue 1 Pages
64-
Published: April 15, 1991
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Article type: Appendix
1991 Volume 42 Issue 1 Pages
App2-
Published: April 15, 1991
Released on J-STAGE: December 17, 2018
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