• 제목/요약/키워드: Acceptance testing

검색결과 226건 처리시간 0.026초

핵 밸브들의 인수 시험을 위한 누출량 시험(Ⅵ) (Leakage Testing for Acceptance Testing of Nuclear Valves (Ⅵ))

  • 주승환
    • 기술사
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    • 제33권2호
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    • pp.39-43
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    • 2000
  • 여기서는 원자력발전소의 격납 용기에 달린 핵 밸브들을 인수 할 때, 적용될 누설시험을 해설한다. 시험할 핵 밸브들은 공급자가 제품을 제작하여 납품하기 이전에 제작사의 주관아래 실시되는 경우와, 발주자가 제품을 인수받고 난 후, 발주자의 주관으로 실시하는 경우가 있을 것이다. 경우가 어떻든 시험 절차는 다르지 않다. 이들에 관하여 자세한 시험 절차들을 소개한다.

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구조실험을 통한 철근콘크리트구조의 내진성능 평가 (Evaluation on Seismic Capacity of reinforced Concrete Structure Based on Structural Testing)

  • 서수연
    • 한국지진공학회:학술대회논문집
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    • 한국지진공학회 2000년도 춘계 학술발표회 논문집 Proceedings of EESK Conference-Spring
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    • pp.308-318
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    • 2000
  • This paper introduces the acceptance criteria for reinforced concrete moment frames based on structural testing of ACI in preparing and proposes criteria for acceptable limiting drift and energy dissipation ratios of reinforced concrete shear walls for structural testing. Limiting drift and energy dissipation ratios were examined for tests on shear walls having ductile type failures. Test data were analyzed and compared to results for a suggested acceptance criteria that involves a limiting drift that is a function of aspect ratio a limiting energy dissipation ratio that is a function of displacement ductility and damping.

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OIML 혼합 샘플링 검사계획에 대한 고찰과 최적 목표값의 설정 : 실량표시상품을 대상으로 (On OIML Mixed Acceptance Sampling Plans and Optimal Target Value for Products in Prepackages)

  • 서순근
    • 대한산업공학회지
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    • 제41권1호
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    • pp.17-24
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    • 2015
  • Mixed acceptance sampling plans for quantity of products in prepackages are widely used for compliance testing. To pass testing, random samples jointly comply with two legal requirements: (i) the average net content of an inspection lot shall be not less than the labelled quantity and (ii) the numbers of under-filled prepackages in a sample are less than or equal to permitted numbers. This paper discusses some drawbacks of the acceptance sampling plans and requirements recommended in OIML R87 (KS A 50087 translated by Korean) developed by the International Organization of Legal Metrology and evaluates the producer's and consumer's risks. In addition, problem of determining a target value in filling processes of prepackages under the OIML R87 requirements is addressed and illustrated with a numerical example.

파괴시험 계수형 샘플링검사 경제적 시료 크기 결정에 관한 연구 (A Study on the Determination of the Economic Sample Size of the Attribute Acceptance Sampling Plans for Destructive Testing)

  • 김병재
    • 산업경영시스템학회지
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    • 제4권5호
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    • pp.11-14
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    • 1981
  • This study intends to decide the economic sample size based on the cost of sampling Inspection for destructive testing. The marginal percent defective is used as the lot tolerance percent defective (LTPD), and the Newton's iterative method is adopted to calculate the optimum sample size(n), given by the consumer's risk($\beta$ - risk) and the acceptance number(c).

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덮밥류 편의식에 대한 효과적인 소비자 조사 기법 비교연구 (Investigating the Efficiency of Various Consumer-acceptance Testing Methods while Developing a Ready-to-eat Meal)

  • 신원선;김지나;김경미;박진희;정진아;정서진
    • 한국식품조리과학회지
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    • 제24권6호
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    • pp.763-770
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    • 2008
  • 전반적으로 모든 소비자 군에서 카레덮밥을 가장 선호 하였으나 불고기덮밥은 20대 남자 소비자가, 해물덮밥의 경우 30대 여자 소비자가 선호하는 것으로 나타나 소비자 군에 따라 수용도의 차이를 보였다. 특히 곤약잡채와 해물 덮밥에 대한 소비자 평가는 연령에 따라 상이한 것으로 분석되었다. 9점 기호척도와 BWS의 결과가 유사하였으나 BWS의 경우 시료간의 선호도 차이를 더 확연히 나타냈다. 주관식 응답 설문 기법은 정량화하기는 어려우나 구체적인 개선 방안을 제시하기도 하여 의사 결정의 자료로 사용하기 보다는 제품의 개선 시 개선 방향에 대한 참고 자료로 유용할 것이라 판단된다.

2변량 정규분포의 독립성에 관한 퍼지 검정 (Fuzzy Testing of Independence in Bivariate Normal Distribution)

  • 강만기;서현아
    • 한국지능시스템학회논문지
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    • 제21권1호
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    • pp.1-5
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    • 2011
  • 우리는 동의지수법에 의한 이변량정규분포의 변수 간 독립성에 대한 퍼지 상관 검정법을 제안하였다. 이를 위하여 퍼지 데이터의 조건을 제시하고, 퍼지 상관계수와 가설을 기각하고 채택할 정도를 위한 동의지수법을 정의하였다. 또한 예증을 위하여 한 이변량정규분포로부터 퍼지 표본을 추출하여 퍼지 상관계수를 이용한 최강력 불편 퍼지 검정법을 보였다.

어머니의 온정적 양육행동이 초등학교 1학년 아동의 학교 적응에 미치는 종단적 영향: 유아기 어머니 수용감과 또래 수용감의 직렬 매개효과 검증 (The Longitudinal Effect of Maternal Warmth on School Adjustment of First Grade Children: Testing the Serial Mediation Model of Perceived Maternal Acceptance and Peer Acceptance During Preschool Years)

  • 문영경
    • 한국보육지원학회지
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    • 제17권5호
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    • pp.43-61
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    • 2021
  • Objective: This study aimed to examine the sequential mediating effects of children's perceived maternal acceptance and peer acceptance in the relationship between maternal warmth and first grade children's school adjustment. Methods: Participants in this study were 979 seven-year-old children(498 boys, 481 girls) recruited for the Korea Child Panel Study. Data were analyzed by analyzing descriptive statistics, correlations, and significance of serial mediation pathways using SPSS 18.0 and PROCESS Macro 3.4. Results: Maternal warmth at age five effected perception of maternal acceptance at age six. Perceived maternal acceptance at age six effected perceived peer acceptance at age six. Perceived peer acceptance at age six effected school adjustment at age seven. Lastly, perceived maternal acceptance and peer acceptance at age six had a serial mediation effect between maternal warmth at age five and school adjustment at age seven. Conclusion/Implications: Perceived social acceptance during preschool years should be emphasized in order to promote school adjustment for first grade children. Parent education for promoting better parent child relationships should be considered and teachers should encourage peer play interaction to help children perceive acceptance from their peers.

방사선투과시험(放射線透過試驗)에 있어서 KS와 ASME Code의 비교(比較)에 관(關)한 연구(硏究) (Study on Comparison of Korean Industrial Standard and ASME BPV Code for Radiographic Examination)

  • 김진구;박병철
    • 비파괴검사학회지
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    • 제4권2호
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    • pp.20-29
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    • 1985
  • There are two basic concepts in industrial radiographic examination; one is a radio-graphic sensitivity, and the other is a acceptance criteria. The comparison of these main points are studied for KS Standard and ASME Boiler and Pressure Vessel Code. From the results of the experiment, higher radiographic sensitivity is required in KS Standard when the thickness of material to be examined is less than 20mm in single wall technique. The acceptance criteria for linear type indications are described on same concept in two standards, whereas the acceptance criteria for rounded indications of KS Standard which mainly depends upon the object thickness are more severe than those of ASME BPV Code.

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모바일 애플리케이션 마켓(앱스토어)의 수용의도 영향요인에 관한 연구

  • 배재권
    • 한국데이타베이스학회:학술대회논문집
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    • 한국데이타베이스학회 2010년도 춘계국제학술대회
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    • pp.223-234
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    • 2010
  • This study is aimed at proposing a new research model in which application store intention to acceptance influence factors (i.e.. facilitating condition, mobile computing self-efficacy, service compatibility, and system quality) affect TAM (i.e., perceived usefulness and perceived ease of use) positively, leading to application store intention to acceptance eventually. This study developed a research model to explain the use of Apple's App Store, and collected 228 survey responses from the undergraduate students who had experiences with such application store services as game and personal information management application download. To prove the validity of the proposed research model, PLS analysis is applied with valid 228 questionnaires. By employing PLS technique, the measurement reliability and validity of research variables are tested and the path analysis is conducted to do the hypothesis testing. In brief, the finding of this study suggests that application store intention to acceptance influence factors affect TAM positively, and application store intention to acceptance as well.

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퍼지 p-값에 의한 퍼지가설검정 (Fuzzy hypotheses testing by fuzzy p-value)

  • 강만기
    • 한국지능시스템학회:학술대회논문집
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    • 한국퍼지및지능시스템학회 2006년도 춘계학술대회 학술발표 논문집 제16권 제1호
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    • pp.199-202
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    • 2006
  • We propose some properties of fuzzy p-value and fuzzy significance level to the test statistics for the fuzzy hypotheses testing. Appling the principle of agreement index, we suggest two method for fuzzy hypothesis testing by fuzzy rejection region and fuzzy p-value with fuzzy hypothesis $H_{f,0}$.

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