• Title/Summary/Keyword: Kim Sang-Ik

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A Study on the Causes of Stagnancy in Six Sigma Implementation

  • Ahn, Byoung-Jin;Kim, Sang-Ik
    • Journal of the Korean Data and Information Science Society
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    • v.19 no.1
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    • pp.53-69
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    • 2008

  • Six Sigma is a proven management philosophy that can be employed to improve productivity dramatically in various fields of industries. However some companies where Six Sigma is adopted confront stagnancy due to many kinds of causes of impediment. In this paper, the causes of stagnancy in the diverse stages of Six Sigma implementation are studied. Moreover in this paper results of such causes are also discussed.

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Elasto-Plastic Postbuckling Analysis of Space Truss Structures (공간트러스구조의 탄소성 후좌굴 해석)

  • Lee, Sang-Hwan;Kwun, Ik-No;Kim, Eung-Kyo
    • 한국공간정보시스템학회:학술대회논문집
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    • 2004.05a
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    • pp.37-42
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    • 2004

  • The primary objective of this paper is to trace the post-buckling behavior of space trusses in the inelastic range. Modeled member material behavior characteristics of struts in the post-critical elasto-plastic stage are determined and three types of idealized hardening rules are described. To perform this analysis, the present work is used the current stiffness parameter method combined with the cylinderical arc-length method. Numerical examples are presented to illustrate the accuracy and the application of the numerical solutions introduced above.

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