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Article type: Cover
1985 Volume 36 Issue 5 Pages
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Published: December 15, 1985
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Article type: Cover
1985 Volume 36 Issue 5 Pages
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Published: December 15, 1985
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Article type: Appendix
1985 Volume 36 Issue 5 Pages
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Published: December 15, 1985
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Article type: Index
1985 Volume 36 Issue 5 Pages
Toc1-
Published: December 15, 1985
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Article type: Appendix
1985 Volume 36 Issue 5 Pages
322-
Published: December 15, 1985
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Shigenobu KOBAYASHI
Article type: Article
1985 Volume 36 Issue 5 Pages
323-333
Published: December 15, 1985
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Masaaki YAMAMOTO
Article type: Article
1985 Volume 36 Issue 5 Pages
334-340
Published: December 15, 1985
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An interactive scheduling system (ISS) was developed in order to get an approximate solution of job-shop problems effectively. In the ISS a part of sequencing operations, that should be done by a scheduling algorithm. is helped by the forced sequence assignment based on intuitive judgement of a scheduler. This assignment reduces the size of an original scheduling problem and shortens the computation time for searching the best solution. Some computational experiments on ISS show the usefulness of human judgement in searching a good schedule and the effects scheduler's experience and knowledge about scheduling problems.
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Hiroshi KATAYAMA
Article type: Article
1985 Volume 36 Issue 5 Pages
341-346
Published: December 15, 1985
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In this paper, some periodic reordering inventory system, which includes moving average (M. A. ) demand model and particular calculation method of order quantity using M. A. parameters, is discussed and the optimal ordering policy for such systam, which minimizes the ratio of term-end inventory variance to demand variance, is derived. It also discussed in relation to Vassian's classical ordering rule and clarifies that our policy is equivalent to Vassian's rule by supposing some demand forecasting method, which is functionally equivalent to our time series analytical method.
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Ikuo ARIZONO, Hiroshi OHTA
Article type: Article
1985 Volume 36 Issue 5 Pages
347-352
Published: December 15, 1985
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Tests of product quality that depend exclusively on one or more of the five senses of a human inspector are known as sensory tests. Since the ability to make correct sensory judgements can vary substantially from person to person, it is important in the selection and training of inspectors to be able to distinguish the differeces of sensory abilities among inspectors. This paper proposes an information theoretic procedure based on the Kullback-Leibler information for classifying inspectors by panel tests. A method of deciding the sample size in the panel tests with given risks is also suggested. The recommended procedure is practical and relatively effective.
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Nobuto NAKAMURA, Tetsuro SHINGU
Article type: Article
1985 Volume 36 Issue 5 Pages
353-359
Published: December 15, 1985
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In this paper we present a hybrid approach using a Lagrangean relaxation to solve a large scale production planning problem in a production system than can be modeled as two-stage process. The procedure is characterized by the two-stage decomposition process by Lagrangean multiplier. Firstly a total planning problem is partitioned into two planning problems for products and parts, respectively, and secondly each planning problem is decomposed into two subproblems, the aggregate subproblem for capacity planning and the detailed subproblem for scheduling. Based on this procedure a hybrid algorithm is constructed for finding a near optimal solution of the production planning. The validity and fesibility of the algorithm are examined by some numerical examples.
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Ken'ichi MORI, Shigeo KASE
Article type: Article
1985 Volume 36 Issue 5 Pages
360-365
Published: December 15, 1985
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The ARMA type time-series analysis method is shown to be applicable to the solution of queueing problem. In this method, a queueing system is analyzed by the statistical estimation without using the model of complex queue mechanism. So, this method does not give the queueing formula or theoretical results as in the conventional stochastic analysis. In this paper, this method is used to compare the effects of queue discipline in single channel service system. The result of analysis shows that the low degree ARMA models are sufficient to describe these system.
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Nobuo MIYASHIRO
Article type: Article
1985 Volume 36 Issue 5 Pages
366-371
Published: December 15, 1985
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The purpose of this study is to develop a relatively low cost system for recording of three dimensional motions, and the relationship between Fitts' Index of Difficulty(ID=log_2A/W) and movement time for some positioning movements was investigated. The system used three precision potentiometers, and it consisted of two single-turn potentiometers and a linear motion potentiometer. Each potentiometer gave electrical output signals corresponding to X, Y and Z coordinates of the stylus position. By use of this measuring system, it is possible to measure and record the displacement of hand movement in any direction as well as velocity and acceleration components. The correlation coefficient between ID and MT was 0.913,and the results supported Fitts' Law.
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Yoshio OGURO, Takao OHKUBO
Article type: Article
1985 Volume 36 Issue 5 Pages
372-377
Published: December 15, 1985
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This paper deals with step length and walking pace at steady state in carrying materials under the condition of holding with both hands, hanging with one hand and putting on a shoulder. The step length and walking pace of the seven different carrying materials under the condition of holding with both hands were calculated on five healthy abult young males and the step length and walking pace of the eight different carrying materials under the condition of hanging with one hand were calculated on six healthy abult young males. The step length and walking pace of the seven different carrying materials under the condition of putting on the shoullder were also calculated on five healthy abult young males. From these calculations, the step length and the walking pace at steady state in carrying materials have been found to be correlated closely with the weight of carrying materials. Consequently the regressive equations of these correlations are given also in this paper.
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Chitoku KUMGAI
Article type: Article
1985 Volume 36 Issue 5 Pages
378-383
Published: December 15, 1985
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This paper shows that the interval time study(ITS)is a proper technique for analyzing a work that requires several hours. The measurement time unit for a few minutes can be applied to the analysis of the element time of the work. By applying the unit, the ITS makes it possible not only facilitate the observation as the work sampling, but also to give the same analyzing function as one of the normal time study, in which the constitution of activity is defined as a correction order in the element.
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Eiichi KOYANO
Article type: Article
1985 Volume 36 Issue 5 Pages
384-390
Published: December 15, 1985
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Five famous unversities including Massachusetts Institute of Technology intend to build up an all-campus integrated database systam. That is, based on campus network system maintaining from 2,500 to 7,000 terminals, Administrative Information Systems have been established and all data processing are centralized to them. The AIS consists of four majour functions, such as, operation, tele-communication, administrative system development and user's service. As mentioned above, campuses network will be more expanded and online system will be more developed. In the educational aspect, campus camputer system will be more decentralized by microcomputer and software will be more utilized.
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Article type: Appendix
1985 Volume 36 Issue 5 Pages
391-392
Published: December 15, 1985
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Article type: Appendix
1985 Volume 36 Issue 5 Pages
393-396
Published: December 15, 1985
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Article type: Appendix
1985 Volume 36 Issue 5 Pages
397-398
Published: December 15, 1985
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Article type: Appendix
1985 Volume 36 Issue 5 Pages
399-400
Published: December 15, 1985
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Article type: Appendix
1985 Volume 36 Issue 5 Pages
App2-
Published: December 15, 1985
Released on J-STAGE: December 17, 2018
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