Journal of The Japanese Society for Quality Control
Online ISSN : 2432-1044
Print ISSN : 0386-8230
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Volume 23, Issue 4
Displaying 1-13 of 13 articles from this issue
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Research Papers
Contributed Paper
  • Combinatorial Optimization of Selective Assembly－Minimum Variance Criterion－
    Yasuhiro YAMADA, Takashi KOBAYASHI
    Article type: Contributed Paper
    1993 Volume 23 Issue 4 Pages 85-91
    Published: October 15, 1993
    Released on J-STAGE: February 13, 2019
    DOIhttps://doi.org/10.20684/quality.23.4_85
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    When matching two kinds of components in an assembly process, it is important to make the difference between characteristics of matched components as small as possible. The matching that minimizes the sum of absolute difference can be obtained by solving the minimum cost matching problem in the related bipartite graph. Furthermore, by selecting squared difference as the cost for a pair, we can decrease the variance of absolute difference. From the results of computer simulations in various situations, we show how the selective assembly method based on the minimum cost matching is superior to the random assembly method.
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Technical Note
  • Aliasing Pattern between Main Effect and Interaction in L36 Orthogonal Array
    Masami MIYAKAWA
    Article type: Technical Note
    1993 Volume 23 Issue 4 Pages 92-97
    Published: October 15, 1993
    Released on J-STAGE: February 13, 2019
    DOIhttps://doi.org/10.20684/quality.23.4_92
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    Miyakawa and Yoshida investigated the aliasing patterns between main effect and interaction and the degree of confounding for L18orthogonal array, In this article, the same investigation is carried out for L36 For the columns with three-level in L36(23×313), there are eight aliasing patterns. By deleting the last column, they reduce to only three patterns where the effect of each interaction is almost uniformly distributed in other columns. For the combinations of a column with two-level and two columns with three-level in L36(23×313) and L36(211×312), there are four aliasing patterns and the effect of each ineraction is not so uniformly distributed in other columns.
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Quality Report
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