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Article type: Cover
1982 Volume 33 Issue 1 Pages
Cover1-
Published: April 15, 1982
Released on J-STAGE: December 17, 2018
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Article type: Cover
1982 Volume 33 Issue 1 Pages
Cover2-
Published: April 15, 1982
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Article type: Appendix
1982 Volume 33 Issue 1 Pages
App1-
Published: April 15, 1982
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Article type: Index
1982 Volume 33 Issue 1 Pages
Toc1-
Published: April 15, 1982
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Article type: Appendix
1982 Volume 33 Issue 1 Pages
2-
Published: April 15, 1982
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Chitoku KUMAGAI
Article type: Article
1982 Volume 33 Issue 1 Pages
3-4
Published: April 15, 1982
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Kojiro KAWAKAMI
Article type: Article
1982 Volume 33 Issue 1 Pages
5-14
Published: April 15, 1982
Released on J-STAGE: December 17, 2018
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By analyzing the reuslts of preliminary studies performed after closely examining the changes of profit-yielding constitutions by means of the Rautenstrauch's Profit & Loss Chart, one of time-series appraisal methods, this study developed and formulated the theoretical method, byintroducing the concept of vector, to quantify the individual change of the couress to which the management behaviors were selected so as to meet every phase of the economic fluctuations. The subsequently performed provdied quantitative analyses the probability information on the changes in volume as well as the information on the possible existence of "a sort of order" as to the directions of changes ovserved. Accoprdingly, this article is of a valuable significance in fumishing the fundamental basis, not only theoretical but also practical, for the programming of Profit-Yielding Constitution Improvement by the management.
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Ryuichi HIRABAYASHI, Hisatoshi SUZUKI, Shizuhisa MATUKAWA
Article type: Article
1982 Volume 33 Issue 1 Pages
15-23
Published: April 15, 1982
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A suitable model should b set up for industrial problem before aplying mathematical programming, especially integer progrmming technique for solving and taking decisions. In this paper, we hve developed an efficient mixed integer programming algorithm using a Transportation Problem structure t solve the Charge Planning Problem for special steel production. The computational results for this algorithm by using actual industrial data have also been illustrated.
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Mamoru OZEKI, Takahiro OONO
Article type: Article
1982 Volume 33 Issue 1 Pages
24-30
Published: April 15, 1982
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No bankruptcy of an enterprise usually not occurs unexpectedly, but it does as a result of the aggravation in financial ratio. This study grips the change of financial ratio in time seris, analyzes the process of brankruptcy, classifies the samples by their similartiy of the process, and explains the characteristics of bankruptcy. More sepcifically, we made the selection of financial ratios peculir to bankruptcy, and put them into two variables. In this way, we can show the position of enterprises in a graphic form, and clarify the change with the passage of time. In addition, we classified the bankrupt enterprises by their similarity of their positions in each year so that we can also show the position-change of the non bankrupt enterprise in a graphic form.
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Nobuhiro YOSHINO, Toshio HAMADA, Katsundo HITOMI
Article type: Article
1982 Volume 33 Issue 1 Pages
31-36
Published: April 15, 1982
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Considering the present conditions of Japn where almost all the petroleum is imported from foreign countries, an energy demand-supply model for energy flows in the conversion and distribution was constructed. This ssytem was analyzed by a multiple-objective linear programming, from the viewpoings of economic efficiency, consumption of petroleum, and environment protection. As an example, using the data in Japan in 1977,the amount in 1982 was forecast and applied to this method. An optimum allocation of energy and the energy shortage to be endured were clarified from this analysis.
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Masao YOKOYAMA, Toyohiko HAYAKAWA, Katsundo HITOMI
Article type: Article
1982 Volume 33 Issue 1 Pages
37-44
Published: April 15, 1982
Released on J-STAGE: December 17, 2018
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A multi-period model for optimum decision of capacity and location of plants was constructed, where the upper limit of plant capacity and additional construction and replacement of plants are considered. The problem was formulated as a 0-1 mixed integer programming probelm minimizing the total discounted cost for construction, production and transportation. A decomposition algorithm calculating ε-optimum for solving the problem based on the idea of Benders decomposition was developed, accompanied with the procedure of reducing variables by ordering candidate points. The feasibility and resonability of the algorithm developed were shown by solving a numerical example.
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Yuhko TANAKA
Article type: Article
1982 Volume 33 Issue 1 Pages
45-51
Published: April 15, 1982
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The purpose of this paper is to investigate the amount of workers' participation in the participative management system. Forty four subjects were interviewed. Results are as follows; (1) the participation is low in the fields of personnel and normalization. (2) In the other fields, it increases by degrees, especially high in the fields of process control and improvement. (3) Generally, workers participate mainly in the jobs which assistant foremen may carry out without the approval of superior authorities. (4) In the workshop where worker's discretion on their operations is large, they tend to be authorized for decision making in their shop life by the participative management system.
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Masao AKIBA, Takao ENKAWA
Article type: Article
1982 Volume 33 Issue 1 Pages
52-59
Published: April 15, 1982
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This study considers the apprisal structure that was extracted based on the surverys about market expectations for product quality exected in 1977 and 1980,and the following conclusions are obtaiend. (1) The evaluation factors, the points of veiws about product quality in market, are stable with time. (2) Ascending tendencles of the expectations with time are cauesd by the product with new quality funcitons that has been placed in market but has not yet diffused enough. Further other features of product differentations and market share are contrasted with the quality difference obtained from the above analysis, and these relations are studied.
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Kohnosuke KOBAYASHI, Tadashi SHIMIZU
Article type: Article
1982 Volume 33 Issue 1 Pages
60-66
Published: April 15, 1982
Released on J-STAGE: December 17, 2018
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The feature of our production is that we assemble multi-kinds of products in small quantites. Soem had several problems in the synchronization of parts making, units assembly and final assembly. Then we have improved our production systems to achieve out final aim that we can produce only necessary products, just at necessaruy time, according to necessary sequence. We adopted two ways of approaches to the improvement. One was software approach and the other was hardare approach. First, we started our actions from the software approach so that we could find out the real bottle-necks in our hardwares. Then we improved those bottle-necks one by one. After the intensive efforts, we could get the good results. They are to shorten the lead time of production, improve the quality of our products and reduce the man-hours needed for production.
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Hideo BANNAI
Article type: Article
1982 Volume 33 Issue 1 Pages
67-72
Published: April 15, 1982
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Our company specializes in producing automotive interior composents. Distinguished from other companies is that we make a variety of components with different specifications. Under the circumstances, weintroduced APM into our factory in 1973,in order to meet whih flexibility required. In this system we manufacture and supply only the necessary goods by a plate method. In 1976,in order to make the APM function more effective, we started overall activities to improve every segment of our production system in the whole factory. As QC circles and every worker's spontaneous activities (JK) were elevated, we have produced good results from improvement of productivity, reduction of inventory and so on. We are expanding our activites to the improvement of our indirect sections based on the same idea.
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Kikuya ICHIKAWA
Article type: Article
1982 Volume 33 Issue 1 Pages
73-78
Published: April 15, 1982
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Article type: Appendix
1982 Volume 33 Issue 1 Pages
79-
Published: April 15, 1982
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Article type: Appendix
1982 Volume 33 Issue 1 Pages
80-81
Published: April 15, 1982
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Article type: Appendix
1982 Volume 33 Issue 1 Pages
App2-
Published: April 15, 1982
Released on J-STAGE: December 17, 2018
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