• 대한인간공학회:학술대회논문집
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• 대한인간공학회 1998년도 춘계학술대회논문집
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• pp.161-166
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• 1998

In this study, the optimum criteria of space between the lines and the letters which could largely affect the legibility were found by the experiment and were presented as guidelines to design Korean VDT screens. Since the experiment was designed to test the human performance based on the VDT screen design, searching speed (S.S) and error rate (E) were used as the criteria of performance, and CFF value was measured to evaluate user's visual fatigue. The EOG value was also measured for the visual restriction during the experiment for the space between the lines and letters.

• 전력전자학회:학술대회논문집
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• 전력전자학회 1998년도 Proceedings ICPE 98 1998 International Conference on Power Electronics
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• pp.909-913
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• 1998

Transient and static characteristics of HVDC inverter can be analyzed with various simulation tools. For the optimal filter design, various performance criteria are proposed. In this paper, performance index is calculated based on proposed per phase equivalent circuit. Voltage and harmonic and filter power loss are selected as criteria. Optimization procedure is performed to find optimal passive filter parameters. Dynamic characteristics is also analyzed with proposed equivalent circuit.

• Management Science and Financial Engineering
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• 제9권2호
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• pp.13-20
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• 2003

For inferring criteria in a performance appraisal. linear programming (LP) has been utilized as an alternative to policy capturing (PC). Previous policy capturing LP (PCLP) studies were limited to the criteria of exact numerical ratings. However. under certain evaluation circumstances, a ranged rating with a lower and upper bound may be preferred over an exact numerical value. Therefore, this study introduces a new LP model that allows ranged ratings. A simple example is given to illustrate our model.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2004년도 추계학술대회 논문집
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• pp.1360-1365
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• 2004

The decisive criteria to determine collection performance is the contact force between pantograph and catenary. The contact force consists of a static force and dynamic force related to vibration characteristics, train speed and etc. The low contact force leads to the loss of contact, and most countries regulate it below $3\∼5\%$ at operation speed. This study presents a technical overview of criteria for collection performance and modelling and simulation methods to analyze dynamic characteristics of catenary.

• 한국복합재료학회:학술대회논문집
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• 한국복합재료학회 2004년도 춘계학술발표대회 논문집
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• pp.43-46
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• 2004

Through investing the criteria and evaluation for fire performance of interior components, this paper introduce the testing items and requirements for Flammability, Smoke density, and Toxicity properties of TTX(Tilting Train eXpress) interior parts. Next time, all trains including TTX will be occupied the components with superior fire-resistance and the sensing and monitoring system for fire in train.

• The Journal of Asian Finance, Economics and Business
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• 제7권7호
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• pp.391-401
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• 2020

The objective of this study is to prioritize the Total Quality Management (TQM) factors based on fuzzy Analytical Hierarchy Process (AHP) method in Vietnamese supporting industries. Through an in-depth literature review, eight criteria were identified. These criteria were then divided into 32 sub-criteria. The fuzzy AHP is used to determine the percent weightings of eight categories of performance criteria that were identified via a review of the quality-management literature. These criteria include management commitment, role of the quality department, training and education, continuous improvement, quality policies, quality data and reporting, communication to improve quality, and customer satisfaction orientation. An empirical analysis of the criteria of each stage using the fuzzy AHP methodology and the expert opinion of quality management are used to evaluate the percent weightings of the criteria and sub-criteria that are synonymous with TQM implementation. The results showed that management commitment is the most critical factor; among sub-criteria, supports and responsibilities of top management is the most important. The study also identified the rank order of critical success factors of TQM. The findings suggest a generic hierarchy model for organizations to prioritize the critical factors and formulate strategies for implementing TQM in supporting industries, as well as other industries in Vietnam.

• 한국의류학회지
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• 제28권5호
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• pp.603-614
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• 2004

The purpose of this study was to investigate the criteria of evaluating clothing and web service on internet shopping malls related to consumers' shopping behavior, This study surveyed consumers who have an experience of buying products on the internet shopping mall and the questionnaire and judgment sampling was used. The subjects were 305 men and women living in the metropolitan area. Method of data analysis were factor analysis, t-test, ANOVA, Duncan test and descriptive statistics. The results were as follows: the items buy from the internet were t-shirts, blouses, knits, skirts and pants. The reasons for buying clothing on the internet were good prices, time saving, door-to-door delivery, while the reasons for not buying on the internet were worries about differences between the product shown on the screen and the actual one, quality guarantee, delivery accident and inconvenience in exchange and refund. Among the differences of clothing evaluation criteria according to internet shopping behavior, significant differences were found in the esthetic criteria and the quality performance criteria according to internet using hours, and in the esthetic criteria according to buying experiences. Among the differences of web service evaluation criteria according to internet shopping behavior, the differences among the groups were found in the reliance criteria, the product reference criteria, the order processing criteria and the handling after purchase criteria according to internet using hours. The significant differences were found in the handling after purchase criteria and the promotion$.$policy criteria according to buying experience, and in the promotion$.$policy criteria according to times of purchase.

• 한국지진공학회:학술대회논문집
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• 한국지진공학회 2000년도 추계 학술발표회 논문집 Proceedings of EESK Conference-Fall 2000
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• pp.251-260
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• 2000

Seismic performance evaluation systems require rational classification of structure systems, proper evaluation criteria, and their scoring index for synthesis. Current seismic performance systems need expert judgments based on collection of available data, approximate analysis of important items, and various scoring system. This study presents a three-step seismic performance evaluation system for building structures in Korea. Each evaluation step determines the seismic performance and the method depends on the degree of refinement of analysis. The preliminary step evaluation involves the global attributes of structures such as vertical irregularity, asymmetric plan, redundancy, and age of structures. The second step requires an elastic analysis for estimation of forces acting on critical sections and checks the strength and ductility. The final step requires inelastic capacity of structures. Each stephas own evaluation scheme with proper weighing factor dependent on the importance and consequence. This study applies the fuzzy theory to a scoring method that synthesizes the individual quantity to a representative value.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2009년도 춘계학술대회 논문집
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• pp.660-663
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• 2009

Currently in Korea, the lack of facilities and technical criteria for the performance test of small hydropower degrades the efficiency of the domestic small hydropower turbine, and makes it difficult to objectively evaluate the performance of hydro turbine. Therefore Korean institute of water and environment in K-water planned making a basis of performance test of small hydropower by using our flowmeter calibration system the largest one in Korea. We planned the maximum measurable power of hydro turbine will be 200 kW in our system. Improving the efficiency of small hydropower system can achieve the additional development benefit about 1.5 billion won per year.

• 한국건설관리학회논문집
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• 제19권2호
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• pp.83-95
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• 2018

본 논문은 민간투자사업의 특수성을 반영한 성과평가 모델 개발을 목적으로 한다. 성과평가 모델 개발을 위해 첫째, 문헌연구를 통하여 민간투자사업 주요 관점과 관점별 성공항목을 정의하고, AHP 설문조사를 통하여 가중치를 산정하였다. 둘째, 민간투자사업 성과에 영향을 미치는 핵심 성과요인을 도출하고, 이를 평가할 수 있는 평가항목을 제안하였다. 셋째, 관점별 성공항목과 평가항목을 매칭함으로써 민간투자사업 성과평가 모델을 구축하였다. 성과평가 모델 개발과 적용을 통해 민간투자사업 이해관계자 사이의 첨예한 관점의 차이가 존재함을 파악할 수 있었다. 이는 다양한 이해관계자의 관점을 균형있게 반영한 민간투자사업의 종합적인 평가의 필요성을 보여준다. 본 연구에서 제시한 성과평가 모델의 평가 결과와 기존의 건설공사 사후평가 결과를 비교해보면, 본 연구의 평가 점수가 이용자 만족도 조사 결과와 유사하다. 건설공사 사후평가에 비해 본 연구의 평가모델은 다양한 이해관계자의 만족도 및 관점을 반영하였기 때문으로 판단된다. 본 연구에서 개발한 성과지표의 결과를 통해 다양한 관점을 고려한 민간투자사업의 성과를 측정할 수 있으며, 어떠한 성공요인 및 평가항목이 프로젝트 성공에 영향을 미치는지 파악할 수 있다. 또한, 본 모델의 프로세스를 기반으로 주요관점 및 성공항목의 가중치 변화와 평가항목의 가감을 통해 도로 시설물을 제외한 민간투자사업 프로젝트에도 적용이 가능할 것으로 기대된다.