• Title/Summary/Keyword: 샘플링검사

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A Study on the Application of ISO Standard Sampling in Grading of Chicken Meats (닭고기 등급판정 시 ISO 기준 샘플링의 적용 연구)

  • Hwang, Yong Joon;Son, Ha Sik;Seung, Jong Won;Park, Jong Woon;Hwang, Won Uk;Kim, Soo-Ki
    • Korean Journal of Poultry Science
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    • v.45 no.4
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    • pp.285-290
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    • 2018
  • This study was aimed to evaluate the possibility of application to the KS A ISO 2859-1 Easy test, an international standards sampling inspection, to replace a sampling method of the current grading standard of chicken meats for the first time. As a result of screening capability to check for defective products, the current sampling was 0.61 and the KS A ISO 2859-1 Normal test was 0.70, suggesting that the latter inspection method was more accurate. If the KS A ISO 2859-1 conversion principle is applied, 40,530 won per day is saved for a 50-lot inspection. The current sampling and the KS A ISO 2859-1 Easy test did not exceed the reject limit for the number of defective products to satisfy the grade $1^+$ on chicken carcass size numbers 12, 9 and 8. Freshness was not significantly different between the current sampling and the KS A ISO 2859-1 Easy test. It is expected that using the KS A ISO 2859-1 Easy test with a smaller sample volume will have the same level of quality evaluation as the current sampling method while reducing costs.

수입검사(受入檢査)의 경제성(經濟性)에 관한 연구(硏究) - 계수형(計數型)샘플링검사(檢査)를 중심(中心)으로 -

  • Kim, Gwang-Seop;Lee, Gyeong-Hak
    • Journal of Korean Society for Quality Management
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    • v.7 no.1
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    • pp.26-34
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    • 1979
  • This paper intends to decide the optimum OC curves and to find the minimized ${\alpha},{\beta}$-risk based upon the Linear Cost Model (L. C. M.) for the destructive or nondestructive acceptance sampling inspection plan. For the solution from the L. C. M., the author used the prior-distribution on some assumptions.

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CMM을 이용한 Airfoil의 Edge부위 측정오차 최소화를 위한 Fitting방법

  • 강진우;변재현
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 2000.04a
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    • pp.709-712
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    • 2000
  • 본 연구는 turbine compressor airfoil의 측정 및 검사 업무에서 edge(leading edge/trailing edge) 부위에서 자주 발생하는 프로브 slip현상으로 인한 측정 오차를 최소화하기 위하여 터빈 압축기의 airfoil 형상 규격에 대하여 살펴보고, 균일 샘플링방법을 이용하여 최소제곱법으로 보상하여 최적의 형상을 구하는 방법을 제시하고자 한다. 국내 기업에서는 airfoil형상의 edge부위를 검사할 때 leading edge부위의 타원 형상과 trailing edge부위의 원 형상을 AutoCAD상에서 임의로 그려서 규격을 검사하고 있다. 따라서 본 연구에서는 edge부위에서 발생하는 측정오차를 최소화하기 위하여 보다 정확하고 체계적인 fitting 방법을 도입함으로써, airfoil의 형상치수에 관한 규격검사 업무의 신뢰성과 효율을 향상시키고자 한다.

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