• 제목/요약/키워드: evaluation criteria of product

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오메프라졸을 함유한 울프로정과 로섹캅셀의 생물학적 동등성 평가 (Bioequivalence Evaluation of Omeprazole Preparations)

  • 지상철;이윤석;박은석
    • 한국임상약학회지
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    • 제10권2호
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    • pp.68-73
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    • 2000
  • The bioequivalence of two omeprazole preparations was evaluated following their oral administration to 16 normal volunteers. The test product was 'Ulpro tablet' made by Boryung Pharmaceutical Co. and the reference was 'Losec capsule' made by Yuhan Corp. After one capsule or tablet containing 20 mg omeprazole was administered, blood was taken at predetermined time intervals and the concentration of the drug in plasma was determined with an HPLC method. AUC and $C_{max}$ were determined and analyzed statistically for the evaluation of bioequivalence of the two products. The differences in AUC and $C_max$ between two products were $0.45\%\;and\;2.83\%$, respectively. The powers for AUC and $C_{max}\;were\;89.2\%\;and\;>90\%$, respectively. Confidence intervals were within $20\%$ for AVC and $C_{max}$All of these parameters met the criteria of KFDA for bioequivalence, indicating that 'Ulpro tablet' is bioequivalent to 'Losee capsule.'

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인터벤션 시 방사선조사 조건에 따른 선량감소 : 면적선량과 영상화질 변화를 중심으로 (Dose Reduction According to the Exposure Condition in Intervention Procedure : Focus on the Change of Dose Area and Image Quality)

  • 황준호;정구민;김현수;강병삼;이경배
    • 대한방사선기술학회지:방사선기술과학
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    • 제40권3호
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    • pp.393-400
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    • 2017
  • 본 연구는 NEMA Phantom을 사용하여 관전류량 변화에 따른 면적선량과 영상화질의 분석을 통해 선량을 감소할 수 있는 방법을 제시하고자 하였다. 인터벤션의 특성상 중요한 화질평가 항목인 공간 분해능, 저 대조도 분해능과 함께 신호 대 잡음비(Signal to Noise Ratio; SNR), 대조도 대 잡음비(Contrast to Noise Ratio; CNR)를 평가기준으로 하였고, 관전압은 80 kVp로 고정하고, 관전류량을 20, 30, 40, 50 mAs로 변화시켜 면적선량과 영상화질을 비교분석하였다. 그 결과 관전압을 고정한 상태에서 면적선량은 조건이 증가함에 따라 $1,066mGycm^2$에서 $6,160mGycm^2$으로 약 6배까지 증가하였고, 공간분해능과 저 대조도 분해능은 20 mAs, 30 mAs에서 평가기준보다 높게 관찰되었으나 40 mAs는 공간 분해능, 50 mAs에서는 공간 분해능과 저 대조도 분해능이 평가기준 이하로 관찰되었다. 또한 SNR과 CNR은 30 mAs까지는 증가하다 40 mAs에서 다소 증가하기는 하였으나 이전과 큰 차이가 없었고, 50 mAs에서는 감소하는 경향을 보였다. 결론적으로 관전류의 과잉노출로 피폭선량이 증가하고, 공간 분해능, 저 대조도 분해능, SNR, CNR 모든 영역에서 영상화질이 저하된다는 것을 알 수 있었고, 적절한 관전류량의 설정으로 인터벤션에서 피폭선량을 줄이고 영상화질을 충분히 개선할 수 있다는 것을 알 수 있었다.

미국 여대생의 의복 추구 혜택과 니트웨어 구매 행동 (Benefits Sought and Knitwear Purchasing Behavior of Female College Students in the U.S.)

  • 이옥희
    • 복식문화연구
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    • 제14권4호
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    • pp.542-555
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    • 2006
  • The main objective of this study was to investigate the relationship between benefits segmentation and knitwear purchasing behavior of college female students in the U.S. The questionnaires for this survey were developed to measure knitwear purchasing behavior and benefits segmentation. The questionnaire was administered to 119 female college students in the University of California. The data was analyzed by percentage, frequency, mean, factor analysis, Cluster Analysis and ANOVA, Duncan Multiple Range test. The female college students in the U.S. were classified into fourth subdivisions by the cluster analysis. In the case of fashion information sources of knit wear, significant differences were found according to benefits sought subdivision in observation of famous people's clothing, fashion articles in magazines and newspapers, TV advertisements, Newspaper advertisements, advice of salespeople, and Catalogs. The evaluation criteria of knit wear product of consumers were significantly different depending on benefits sought subdivision in design/style, quality of construction, fashionable, brand and store name, pleasing to others, prestige, and sexy. The store attributes of knitwear product of consumers were significantly different depending on benefits sought subdivision in friendliness of sales personnel, product knowledge of sales personnel, brand names, new fashion, and variety of products. The outlook for the industry of knitwear look to remain bright, there should be a continuous effort to research and invest in consumer satisfaction of knitwear.

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Classification Trends Taxonomy of Model-based Testing for Software Product Line: A Systematic Literature Review

  • Sulaiman, Rabatul Aduni;Jawawi, Dayang Norhayati Abang;Halim, Shahliza Abdul
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제16권5호
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    • pp.1561-1583
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    • 2022
  • Context: Testing is one of the techniques that can assure the quality of software including the domain of Software Product Line (SPL). Various techniques have been deliberated to enhance the quality of SPL including Model-based Testing (MBT). Objective: The objective of this study is to analyze and classify trends of MBT in SPL covering the solutions, issues and evaluation aspects by using taxonomy form. Method: A Systematic Literature Review (SLR) was conducted involving 63 primary studies from different sources. The selected studies were categorized based on their common characteristics. Results: Several findings can guide future research on MBT for SPL. The important finding is that the multiple measurements are still open to improving current metrics to evaluate test cases in MBT for SPL. The multiple types of measurement required a trade-off between maximization and minimization results to ensure the testing method which could satisfy multiple test criteria for example cost and effectiveness at the same time.

의복 만족 모형 구성을 위한 이론적 연구 (A Theoretical Study on Clothing Satisfaction Model)

  • 홍금희;이은영
    • 한국의류학회지
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    • 제16권3호
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    • pp.223-232
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    • 1992
  • The ultimate purpose of this study is to build a model on clothing satisfaction which extends the consumer satisfaction model by unifying the exportation antecedents. In the literature study, it is proposed to clarify the concepts on the clothing satisfaction, and to investigate the present paradigms of the consumer satisfaction. It is widely accepted by the clothing researchers that the clothing satisfaction is a comparative process in which the evaluation criteria are used to judge the clothing product and to access the disconfirmation. In the Disconfirmation paradigm, the role of the expectation is very important. We propose to classify the expectation into the expective expectation and the normative expectation. The normative expectation applies when the investment cost and effort are considered. The expectation is shown to be affected by the expectation antecedents of the product characteris-tics, the situation characteristics, and the consumer characteristics. We investigate in detail those clothing satisfaction determinants and their measurement methods. Then, we build a clothing satisfaction model by the disconfirmation paradigm which is composed of the expectation antecedents, the expectation (expective expectation, normative expectation), the perceived clothing product performance, and the disconfirmation.

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정보보호 제품에서 CC 보안기능의 활용도에 관한 연구 (A Study on Utilization of CC Security Function Components in IT Security Products)

  • 최성자;최상수;이강수
    • 정보처리학회논문지C
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    • 제12C권2호
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    • pp.207-216
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    • 2005
  • CC내의 보안기능(클래스-패밀리-컴포넌트)을 실제 정보보호 제품이나 PP에서 사용하는 빈도에 대한 연구결과가 없으므로, 어떤 보안기능이 중요한지를 판단하기가 어렵다. 본 논문에서는 기존의 33종의 제품유형별 PP들이 CC내의 어떤 보안기능을 사용했는지를 조사하여, CC내의 보안기능들의 사용율과 제품유형별 보안기능의 사용율을 구하였다. 이 결과는 제품의 새로운 분류, 제품유형별 개발 및 평가비 산정 등에 활용할 수 있을 것이다.

국산 프로토타입 면적선량계 SFT-1의 성능평가 (Performance Evaluation of Domestic Prototype Dose Area Product Meter SFT-1)

  • 이호선;한성규;노영훈;임현종;김정민;김종욱;채현식;윤용수
    • 대한방사선기술학회지:방사선기술과학
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    • 제39권3호
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    • pp.435-441
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    • 2016
  • 현재 시중에 설치되어 있는 의료용 X선 장치는 선량표시를 할 때 일반적으로 DAP(Dose Area Product) meter를 부착한다. 그러나 DAP meter가 전부 수입에 의존하고 있기 때문에 고가의 설치 비용 등의 문제가 있다. 본 연구에서는 서울시의 지원을 받아 순수 국산기술의 DAP meter 프로토타입을 제작하였고, 이 프로토타입의 성능을 독일산 I사의 제품과 비교하여 평가하였다. 평가 항목은 전자포집효율, 선량의존성, 선질의존성, 재현성, 자체흡수율, 광투과율 6개 항목으로 IEC 60580를 평가 기준으로 삼았다. 평가 결과 전자포집효율이 고유오차 9.5%, 선량의존성이 선형성 99%, 재현성이 변동계수 2%, 자체흡수율이 9%로 각각 합격기준을 만족시켰으나, 선질의존성이 변동한계 29%, 광투과율이 55%로 합격기준에 미달하였다. 아직 프로토타입이기에 앞으로 개선될 여지가 많다. 회로부터 재료까지 국산기술로 개발하고 있기 때문에 합격 기준에 미달하는 항목은 추후 해결 가능할 것으로 사료된다.

Development and validation of an analytical method for the quantification of 2,6-diisopropylnaphthalene in agricultural products using GC-MS/MS

  • Lee, Han Sol;Park, Ji-Su;Lee, Su Jung;Shin, Hye-Sun;Chung, Yun mi;Choi, Ha na;Yun, Sang Soon;Jung, Yong-hyun;Oh, Jae-Ho
    • 분석과학
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    • 제34권1호
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    • pp.1-8
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    • 2021
  • An analytical method was developed and optimized for the quantification of a plant growth regulator, 2,6-diisopropylnaphthalene (2,6-DIPN), in agricultural products using gas chromatography-tandem mass spectrometry. The samples were extracted, partitioned, and were purified using a Florisil® cartridge. To validate the analytical method, its specificity, linearity, limit of detection (LOD) and limit of quantification (LOQ) of the instrument, LOQ of the analytical method (MLOQ), accuracy, and repeatability were considered. The method displayed excellent results during validation, and is suitable for the determination and quantification of the low residual levels of the analyte in the agricultural samples. All of the results with the optimized method were satisfactory and within the criteria ranges requested in the Codex Alimentarius Commission guidelines and the Ministry of Food and Drug Safety guidelines for pesticide residue analysis. The developed method is simple and accurate and can be used as a basis for safety management of 2,6-DIPN.

Analytic Hierarchy Process Modelling of Location Competitiveness for a Regional Logistics Distribution Center Serving Northeast Asia

  • Kim, Si-Hyun;Lee, Kwang-Ho;Kang, Dal-Won
    • Journal of Korea Trade
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    • 제24권3호
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    • pp.20-36
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    • 2020
  • Purpose - As the global product network expands through both internationalization and diversification of the multimodal transportation system, corporate strategies have shifted to emphasize the importance of a high value-added international logistics system. To guide policies and strategies to attract relevant industries, this study aims to analyze the location competitiveness of regional logistics distribution center to serve Northeast Asia. Design/methodology - Multi-criteria techniques are considered to offer a promising framework for evaluating decision-making factors. This paper employed an analytic hierarchy process to analyze the hierarchal structure of determinants for selecting the location of a regional logistics distribution center. Adopting both qualitative and quantitative evaluations, this study suggest political implications for a regional logistics distribution center development, such as the direction of political support, service differentiation and infrastructure development. Findings - This study developed a location competitiveness evaluation model, based on the case study of the major port-cities in Northeast Asia. Evaluation model incorporates five factors underpinning 17 components extracted using factor analysis. The results revealed that the logistics factor is the most significant factor for evaluating the competitiveness of a regional logistics distribution center. The remaining factors were market, costs, and services environment. Comparing qualitative and quantitative evaluations, results provide useful insights for a regional logistics distribution center development in Northeast Asia. Originality/value - This study revealed differences between qualitative and quantitative evaluations. The finding implies that prior works on evaluation models of competitiveness has not successfully measured the gap between quantitative data and expert' evaluations. To overcome this limitation, this paper considered both actual data such as actual distance, cost, the number of companies located, and expert opinions.

TV 홈쇼핑 여성 속옷 세트의 구매행동과 치수 조합 및 품질만족도 (Purchase Behaviors, Size Combination Suitability & Products Satisfaction for Women's Underwear Sets Sold on TV Home Shopping)

  • 최주영;조신현;김미숙
    • 복식문화연구
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    • 제20권2호
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    • pp.154-168
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    • 2012
  • This study examined size combination suitability of the underwear sets in home shopping and discussed the degree of consumer satisfaction as well as purchase criteria and evaluation after purchase of women's underwear. The survey was conducted from 1st to 15th September 2010 on a total of 300 women aged between 20 to 50, living in Seoul and Gyeonggi-do region who had bought women's underwear through home shopping. The completed data, 245 out of 300, was used for the final analysis. The analysis conducted in the study with SPSS statistics package includes frequency analysis, reliability analysis, factor analysis, chi-square analysis, $t$-test, ANOVA and Duncan's Multiple Range test. Evaluation items on purchase criteria and evaluation after purchase were processed with factor analysis. The results of the present study showed that product differentiation strategies are required based on age in order to improve consumer satisfaction and repurchase intention in home shopping underwear. Moreover, most of underwear products sold in sets in home shopping are provided based on the brassiere size. As a result, women who do not fit into the home shopping underwear size combination may be less satisfied. When consumers choose their own brassier and briefs size or combinations of various brassier and briefs sizes, it would increase consumer satisfaction.