• 제목/요약/키워드: Standard Plans

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ISO/DIS 2859-1(1997), 계수조정형 샘플링 검사규격 (ISO/DIS 2859-1(1997), Sampling Plans Indexed by AQL for Lot-by-Lot Inspection)

  • 홍성훈;이상영;최성일
    • 품질경영학회지
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    • 제27권1호
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    • pp.135-150
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    • 1999
  • The second edition of the International Standard ISO/DIS 2859-1(1997) is the revised version of ISO 2859-1(1989). Significant changes in this edition include the following; ⅰ) a new procedure for switching from normal to reduced inspection is used, ⅱ) optional fractional acceptance number sampling plans are added, and ⅲ) reduced plans are changed to eliminate the gap between the acceptance and rejection numbers. In this paper, major changes and additions incorporated into the revised version are discussed.

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와이블 분포에서의 종결형 축차시험방안 (Truncated Sequential Test Plan under Weibull Distribution)

  • 정해성;차명수;오근태
    • 한국신뢰성학회지:신뢰성응용연구
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    • 제3권2호
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    • pp.137-143
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    • 2003
  • Sequential test plans are characterized by decision rules for accepting or rejecting compliance, or continuing the test at my test time. They are determined by selected values of risks and discrimination ratio. The sequential test plans in the international standard such as MIL-HDBK-781A are based on the assumption that the underlying distribution of times between failures is exponential. In this paper, sequential test plans are extended to the Weibull distribution case. Simulation studies are performed to examine the reasonability in this extension.

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전통한옥 '칸'의 계획과 구성에 관한 연구 (A Study on Planning and Composition of Module Unit in Korean Traditional House)

  • 김종훈
    • 한국주거학회논문집
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    • 제23권4호
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    • pp.41-48
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    • 2012
  • The purpose of the study, approaching from the aspect of the construction technologies, is to determine the architectural techniques of traditional wood architects in existence, through which the systems and techniques that create the inherent characteristics of Korean Architecture are clarified. With understanding traditional construction system and focusing on the fact that built environment results from the consistent standards and technologies of architects, this study inquires into the systematic standard and its formation that present in the process of planning for the overall scale and shape of a building from the following (four) perspectives. The study determines the characteristics of '間(Kan)' (unit; fundamental unit that measures Korean traditional houses) and the methods of columns disposition of which the '間 (Kan)' is made up. Once the necessary spaces are decided according to the size of a building, then floor plans are drawn with the standard unit, '間(Kan)'. The '間(Kan)', as a modular unit, is not only composing the floor plans, but also functioning as an Area unit, Space unit and Structural unit. Composition of '間(Kan)' varies with disposition of columns, and therefore multiform of floor and spaces are created. In this study, the '間(Kan)', as a standard unit, is used in the form of specific size and area, and it is demonstrated how the floor plans are developed by organizing the columns in accordance with the spaces requested.

성취기준 단위로 분석한 중학교 학생의 성차 (Analysis on Gender Difference Appearing in Middle School Students at Each Achievement Standard)

  • 조윤동
    • 대한수학교육학회지:학교수학
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    • 제18권2호
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    • pp.231-256
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    • 2016
  • 이 글에서는 국가수준 학업성취도 평가 문항의 중학교 남녀학생별 평균 정답률을 바탕으로, 성차가 나타난 성취기준을 살펴보고자 한다. 성취기준은 교육과정을 구성하는 가장 작은 단위로서 교사가 수업 계획을 세우는 기준 단위가 되기도 한다. 수업 계획은 시수에 따라 구상하게 되는데, 그 시수를 결정하는 것이 성취기준이다. 그러므로 성취기준에서 나타난 성차에 관한 객관적인 정보는 수업 계획을 세우는 단계에서 성차를 해소화기 위한 방안을 구상하는 데 중요한 역할을 할 것이다. 또한 이 연구는 앞으로 수학에서 나타나는 성차를 연구하는 데 중요한 지표로서 역할을 할 것으로 기대된다.

초등정보영재 교육과정의 현황 및 개선방안 연구 (A Study on the Current Status and Improvement Plans of Gifted Elementary Information Education Curriculum)

  • 전우천
    • 영재교육연구
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    • 제20권1호
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    • pp.347-368
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    • 2010
  • 현대는 지식 정보화 사회이며 한 나라를 이끌어 갈수 있는 원동력은 지식기반의 산업의 육성에 달려 있다. 또한, 개인의 경쟁력 측면에서도 정보화 능력 및 정보통신기술의 사용은 매우 중요하다. 이런 측면에서 지식 정보화 사회를 이끌어 갈 정보영재의 발굴과 교육은 더욱 중요하다. 현재 정보영재교육은 사교육과 공교육 현장에서 다양하게 진행되고 있다. 본 원고에서는 초등학교 정보영재교육과정의 현황을 대학부설 영재교육원 중심으로 분석하고, 정보영재 교육과정의 개선방안을 다양한 관점에서 제안한다.

ISO 2859-1 (1989), 계수조정형 샘플링 검사규격 (ISO 2859-1 (1989), Sampling Plans Indexed by Acceptable Quality Level for Lot-by-Lot Inspection)

  • 홍성훈;이승환
    • 품질경영학회지
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    • 제24권3호
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    • pp.77-93
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    • 1996
  • This paper is concerned with the International Standard ISO 2859-1 (1989), Sampling Plans Indexed by Acceptable Quality Level (AQL) for Lot-by-Lot Inspection, his standard is AQL type sampling scheme, and incorporates switching rules to move among normal, tightened, and reduced inspections. Sample size code letters and inspection levels of ISO 2859-1 are the same as those of other attributes standards MIL-STD-105D, ANSI Z1.4, and KS A 3109. But ISO 2859-1 has more simple switching rules than KS A 3109 has. The sampling procedures of the ISO 2859-1 are matched to the variables international standard ISO 3951 to enable us to move between them. Composite OC and ASN curves are given for AQL 2.5% and code letter F.

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라이프사이클 변화에 대응한 세대통합형 주거단지 계획안 (Planning of Generation-Integrated Housing Complex for Changes of Life Cycle)

  • 김은정;권오정
    • 한국주거학회:학술대회논문집
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    • 한국주거학회 2006년도 추계학술발표대회 논문집
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    • pp.438-442
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    • 2006
  • The aims of this study was to identify the needs of a generation-integrated housing complex by respondents with different generations and propose the plans for this type of low-rise housing complex. Respondents were needed a housing unit with 31-40 pyung, three rooms, and two baths. Also, they wanted to live a housing complex with size of 50-100 housing units, providing community services such as green zone and rivulet, community programs and spaces, and residents gathering public spaces. The proposed plans showed three types of standard housing unit plans and three modified housing unit plans to accommodate the changing life cycle of the family.

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Optimal Sampling Plans of Reliability Using the Complex Number Function in the Complex System

  • Oh, Chung Hwan;Lee, Jong Chul;Cho, Nam Ho
    • 품질경영학회지
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    • 제20권1호
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    • pp.158-167
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    • 1992
  • This paper represents the new techniques for optimal sampling plans of reliability applying the mathematical complex number(real and imaginary number) in the complex system of reliability. The research formulation represent a mathematical model Which preserves all essential aspects of the main and auxiliary factors of the research objectives. It is important to formule the problem in good agreement with the objective of the research considering the main and auxilary factors which affect the system performance. This model was repeatedly tested to determine the required statistical chatacteristics which in themselves determine the actual and standard distributions. The evaluation programs and techniques are developed for establishing criteria for sampling plans of reliability effectiveness, and the evaluation of system performance was based on the complex stochastic process(derived by the Runge-Kutta method. by kolmogorv's criterion and the transform of a solution to a Sturon-Liouville equation.) The special structure of this mathematical model is exploited to develop the optimal sampling plans of reliability in the complex system.

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LP Algorithm을 이용한 반도체 생산 계획의 도출 (A Study of Making Semiconductor Production Plan using LP Algorithm)

  • 박동식;이지형;유관호;이칠기
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2004년도 하계종합학술대회 논문집(2)
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    • pp.481-484
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    • 2004
  • To make production and equipment investment plans in semiconductor Line, implementation of many variables is needed. But these factors could bring many changes and the result is hard to predict. Because prediction is hard, it is hard to make a standard. So this project established Semiconductor production plans using LP Algorithm to satisfy all the conditions from the factors and came up with thesis on reasonable and standardized process.

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종속 품질 생산 공정에서 시뮬레이션과 근사적 방법을 통한 합격 확률의 비교에 관한 연구 (A Study on the Comparison of the Probability of Acceptance through Simulation and Approximation Methods for a Statistically Dependent Production Process)

  • 유정상;황의철
    • 산업경영시스템학회지
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    • 제15권26호
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    • pp.189-199
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    • 1992
  • Standard acceptance sampling plans models the production process as a sequence of independent identically distributed Beruoulli random variables. However, the quality of items sampled sequentially from an ongoing production process often exhibits statistical dependency that is not accounted for in standard acceptance sampling plans. In this paper, a dependent production process is modelled as an ARMA process and as a two-state Markov chain. A simulation study of each is performed. A comparison of the probability of acceptance is done for the simulation method and for the approximation method.

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