• Title/Summary/Keyword: acceptance testing

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

  • 서수연
    • Proceedings of the Earthquake Engineering Society of Korea Conference
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    • 2000.04a
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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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On OIML Mixed Acceptance Sampling Plans and Optimal Target Value for Products in Prepackages (OIML 혼합 샘플링 검사계획에 대한 고찰과 최적 목표값의 설정 : 실량표시상품을 대상으로)

  • Seo, Sun-Keun
    • Journal of Korean Institute of Industrial Engineers
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    • v.41 no.1
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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.

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

  • 김병재
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.4 no.5
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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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Investigating the Efficiency of Various Consumer-acceptance Testing Methods while Developing a Ready-to-eat Meal (덮밥류 편의식에 대한 효과적인 소비자 조사 기법 비교연구)

  • Shin, Weon-Sun;Kim, Ji-Na;Kim, Kyeong-Mi;Park, Jin-Hee;Chung, Jin-A;Chung, Seo-Jin
    • Korean journal of food and cookery science
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    • v.24 no.6
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    • pp.763-770
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    • 2008
  • A taste-testing method that accurately measures consumer-acceptance is critical during the course of the product development stage. Although various types of consumer-acceptance tests are available, the testing protocol appropriate for measuring the acceptance of ready-to-eat-meals (REM) has not yet been verified. In this study, various hedonic taste-testing methods (9-point hedonic scaling, best-worst scaling, open ended response) were compared for their efficiency and power in identifying the preferred REM menu of consumers. Forty-four consumers evaluated the acceptance of five types of REM menu samples consisting of a wide variety of flavors. Consumers initially used the 9-point hedonic rating method to choose the best and the worst sample among the 5 meals tested. Finally, consumers were asked to fill out open-ended comments where they could freely describe their liking and disliking of each sample. The results showed that the REM menu acceptance measured by the 9-point hedonic method that rated best-worst scaling exhibited a similar preference pattern. The open-ended response method could not provide a quantifiable acceptance data but was able to provide supplementary information regarding the limitations of the samples and therefore, provide a general idea of the direction of improvement during the product development.

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

  • Kang, Man-Ki;Seo, Hyun-A
    • Journal of the Korean Institute of Intelligent Systems
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    • v.21 no.1
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    • pp.1-5
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    • 2011
  • We furnished some properties of fuzzy testing of independence for correlation in a bivariate normal distribution by agreement index. First we present some restriction of the fuzzy data, define fuzzy sample correlation coefficient and agreement index for testing hypothesis with acceptance or rejection degree. Also, we show that UMP unbiased fuzzy test and drawing conclusions the fuzzy test.

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 (어머니의 온정적 양육행동이 초등학교 1학년 아동의 학교 적응에 미치는 종단적 영향: 유아기 어머니 수용감과 또래 수용감의 직렬 매개효과 검증)

  • Moon, Young-kyung
    • Korean Journal of Childcare and Education
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    • v.17 no.5
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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.

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

  • Kim, Jin-Koo;Park, Byung-Chul
    • Journal of the Korean Society for Nondestructive Testing
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    • v.4 no.2
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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

  • Bae, Jae-Gwon
    • Proceedings of the Korea Database Society Conference
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    • 2010.06a
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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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Fuzzy hypotheses testing by fuzzy p-value (퍼지 p-값에 의한 퍼지가설검정)

  • Kang Man-Ki;Choi Gue-Tak
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 2006.05a
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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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