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Article type: Cover
1974 Volume 25 Issue 3 Pages
Cover1-
Published: December 31, 1974
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Article type: Cover
1974 Volume 25 Issue 3 Pages
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Published: December 31, 1974
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Article type: Appendix
1974 Volume 25 Issue 3 Pages
App1-
Published: December 31, 1974
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Article type: Index
1974 Volume 25 Issue 3 Pages
Toc1-
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Article type: Appendix
1974 Volume 25 Issue 3 Pages
168-
Published: December 31, 1974
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[in Japanese]
Article type: Article
1974 Volume 25 Issue 3 Pages
169-170
Published: December 31, 1974
Released on J-STAGE: December 17, 2018
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Rintaro MURAMATSU
Article type: Article
1974 Volume 25 Issue 3 Pages
171-172
Published: December 31, 1974
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Eiji WADA
Article type: Article
1974 Volume 25 Issue 3 Pages
173-177
Published: December 31, 1974
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[in Japanese], [in Japanese], [in Japanese], [in Japanese]
Article type: Article
1974 Volume 25 Issue 3 Pages
178-186
Published: December 31, 1974
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Hiroshi OHTA
Article type: Article
1974 Volume 25 Issue 3 Pages
187-196
Published: December 31, 1974
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The paper describes a corrective scheme for the maintenance of production processes whose capabilities are deteriorating in service. The analysis is based on Markov models of parallel lot-production processes and proposes the application of sampling inspection. The methodology outlined in the paper is limited to two areas : 1) maintenance of those particular processes whose efficiency decreases with use, and 2) maintenance of all the processes some of which become inefficient. Although this study is carried out from a particular standpoint, it claims that the function of sampling inspection can be extended beyond its original purpose to measure process control in general.
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Fumio HASHIMOTO, Kazunori NAGASAKA
Article type: Article
1974 Volume 25 Issue 3 Pages
197-201
Published: December 31, 1974
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The equations for cost and production rates which divide Gilbert's basic model into several elements of shop work are suggested as a mean of determining the economically optimum machining conditions. The cutting speed for minimum cost or maximum production rate is not uniquely defined, but lies within a confidence interval, on account of variations in the parameters of the tool life equation. From within the confidence interval a specific speed is selected by applying the minimax principle. The computer program for the determination of optimum cutting conditions is written, taking account of the restrictions arising out of the selection.
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Masayuki MATSUI, Hisao SANAE
Article type: Article
1974 Volume 25 Issue 3 Pages
202-207
Published: December 31, 1974
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The response of workers to largely technologically determined variations in the nature of work in the production process is here analyzed by the "task attributes" approach. The sample of 24 jobs and 314 workers studied was drawn from 3 factories, deliberately selected to secure broad diversification. As the main result, the job attribute scores correlate significantly with the mean values of work satisfaction for every job, and two different patterns of response to job attributes are found by a twofold division of workers' ages. Finally, it is concluded that this approach is useful.
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Masao KOGURE, Masao AKIBA
Article type: Article
1974 Volume 25 Issue 3 Pages
208-214
Published: December 31, 1974
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It is the purpose of this paper to propose a systematic approach to the setting of each department goal and the selection of plans for the improvement of the system in a business firm. A method of estimating three points like the one used in PERT is applicable to an estimation of activity performance. However, the PERT computations are based on the constant known variance, therefore the above method is used under the condition of α and β-parameters of Beta distribution-known. In the present paper, a generalized method is proposed, in which the variance is estimated through the estimator's degree of confidence to be used under the condition of α and β unknown.
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Yoshiaki TOYODA
Article type: Article
1974 Volume 25 Issue 3 Pages
215-219
Published: December 31, 1974
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The Effective Gradient Method assigns to the zero-one variables measures of profitability that change the values of the variables from zero to one in large scale zero-one programming problems. This feature makes the method applicable not only to those problems associated with obtaining the optimal package of variables with the values one but also to many kinds of binary choice problems to which it is difficult to apply the usual zero-one programming methods. This paper presents the applications of the Effective Gradient Method to problems which cannot be solved by the usual zero-one programming methods and indicates how useful the Effective Gradient Method can be when applied to a variety of managerial decision making problems.
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Hideo IWASAKI
Article type: Article
1974 Volume 25 Issue 3 Pages
220-226
Published: December 31, 1974
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This article develops some corrections of the normal approximation test for use with the Poisson variable. The proposed corrections perform much better than the customary "Yates' correction." This paper performs a function similar to type I error as a means of estimating differences between two tests ( the Poisson test and the normal approximation test), given the hypothesis that λ=λ_0. The true type I errors are much nearer to the nominal values for any value of λ using the corrections proposed here than using the "Yates' correction."
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Ken MURASUGI, Iwao OHASHI, Ryuji IYOROI
Article type: Article
1974 Volume 25 Issue 3 Pages
227-232
Published: December 31, 1974
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There are many criticisms and problems unsolved in Herzberg's M-H theory. The problems include the Dual-factor theory itself, the method of data-collection, the subject of the survey, and the difference of culture. Our study clarifies the above problems through an empirical approach. This paper emphasizes the comparison using the following classification criteria; Our results and Herzberg's men and women in the same age bracket, supevisors and shop-floor employees, blue-collar and white-collar workers, etc.
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Kenji TAKEDA
Article type: Article
1974 Volume 25 Issue 3 Pages
233-238
Published: December 31, 1974
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CADAP (Computer Aided Design of Assembly Processes), the program described here, aims to assign necessary work elements to work stations, not only creating a good balance within the system, but also meeting various kinds of requirements for the system. The algorithm of the program is based on Backtrack Programming and includes a heuristic method which determines priorities by using a group function and the amount of time required to perform each work element in order to scan the search tree.Using this program, assembly systems can be designed easily and systematically in a short computing time. An application to the design of the final assembly line of a certain product is shown to illustrate the applicability of the program.
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Article type: Appendix
1974 Volume 25 Issue 3 Pages
239-243
Published: December 31, 1974
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Article type: Appendix
1974 Volume 25 Issue 3 Pages
244-
Published: December 31, 1974
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Article type: Bibliography
1974 Volume 25 Issue 3 Pages
245-
Published: December 31, 1974
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Article type: Appendix
1974 Volume 25 Issue 3 Pages
App2-
Published: December 31, 1974
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