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On the Design of the Latch Mechanism for Wafer Containers in a SMIF Environment

  • Lee, Jyh-Jone;Chen, Dar-Zen;Pai, Wei-Ming;Wu, Tzong-Ming
    • Journal of Mechanical Science and Technology
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    • v.20 no.12
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    • pp.2025-2033
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    • 2006
  • This paper presents, the design of a latch mechanism for wafer containers in a standard mechanical interface environment. For an integrated circuits fabrication factory, the standard mechanical interfaced wafer container is an effective tool to prevent wafers from particle contamination during wafer storage, transporting or transferring. The latch mechanism inside the container door is used to latch and further seal the wafer container for safety and air quality. Kinematic characteristics of the mechanism are established by analyzing the required functions of the mechanisms. Based on these characteristics, a methodology for enumerating feasible latch mechanisms is developed. New mechanisms with one degree-of-freedom and up to five links are generated. An optimum design is also identified with respect to the criteria pertinent to the application. The computer-aided simulation is also built to verify the design.

A study on the meaning of 'Half outside and half inside(半表半裏)' in Sanhanlun(傷寒論) ("상한론(傷寒論)"에 나타난 반표반리(半表半裏)의 개념에 관한 소고(小考))

  • Jung, Il-Hyung;Yoon, Chang-Yul
    • Journal of Haehwa Medicine
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    • v.18 no.2
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    • pp.21-29
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    • 2009
  • The 'Half outside and half inside(半表半裏)' is the part which is located between outside and inside, and it is regarded as the nickname of ShaoYang(少陽) in Sanhanlun(傷寒論). About the meaning of 'Half outside and half inside', many medical scientists agreed that the 'outside' is 'TaiYang(太陽)', but they didn't agreed the meaning of 'inside'. One group insisted the 'inside' is 'YangMing (陽明)', the other group instisted that 'TaiYin(太陰)'. To know which opinion is correct, I analyed the Kwigyung(歸經) of herbs in Soshihotang(小柴胡湯) which has a close relationship with ShaoYang, and it is proved that the Kwigyung of herbs is the Foot ShaoYang-GALL BLADDER Meridian(足少陽膽經), Hand TaiYin-LUNG Meridian(手太陰肺經), and Foot TaiYin-SPLEEN Meridian(足太陰脾經). So I concluded that the 'inside' is not 'YangMing' but 'TaiYin'.

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Implementation and Performance Evaluation of a Firm's Green Supply Chain Management under Uncertainty

  • Lin, Yuanhsu;Tseng, Ming-Lang;Chiu, Anthony S.F.;Wang, Ray
    • Industrial Engineering and Management Systems
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    • v.13 no.1
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    • pp.15-28
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    • 2014
  • Evaluation of the implementation and performance of a firm's green supply chain management (GSCM) is an ongoing process. Balanced scorecard is a multi-criteria evaluation concept that highlights implementation and performance measures. The literature on the framework is abundant literature but scarce on how to build a hierarchical framework under uncertainty with dependence relations. Hence, this study proposes a hybrid approach, which includes applied interpretive structural modeling to build a hierarchical structure and uses the analytic network process to analyze the dependence relations. Additionally, this study applies the fuzzy set theory to determine linguistic preferences. Twenty dependence criteria are evaluated for a GSCM implemented firm in Taiwan. The result shows that the financial aspect and life cycle assessment are the most important performance and weighted criteria.