• 한국의류학회지
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• 제28권5호
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• pp.690-700
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• 2004

The purposes of this research were to segment consumer groups according to sportswear benefits sought and to find the differences among the groups in regard to domestic vs imported brand attitudes, internet vs department store attitudes, and sportswear purchasing behavior. The subjects used for the research were 773 male and female consumers who were residents in Seoul. The data were analyzed by factor analysis, cluster analysis, ANOVA, and Duncan test. The results showed that there were four sportswear benefit segments: figure compensation/ ostentation, individuality, comfort/function, and youth-oriented groups. Statistical analyses showed that the four sportswear benefit segments were different in regard to imported brand attitudes, department store attitudes, and sportswear purchasing behavior. For example, figure compensation/ ostentation segment had more positive attitude toward imported brands and department stores, considered design and advertisement important as sportswear selection criteria, and had a highest expenditure on sportswear purchase. The implications of the research were discussed.

• KIEAE Journal
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• 제12권6호
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• pp.63-68
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• 2012

The aim of this study is to evaluate current policies and suggest the way of overcome financial impediments to the energy efficiency function of residential buildings. Based on this analysis the paper enumerates policy recommendations for enhancing how energy efficiency is addressed in building codes and other policies for residential buildings. For achieving this goal, this study conducts the cost-benefit analysis to measure total energy savings and associated total cost. The results of study shows that the cost is greater than the benefit from 1st to 4th year but the benefit will be greater than the cost for the rest of the year. In addition, this study designs a financial support method and an implementation mechanism. Investment from the capital market will take place with the government's interest subsidy. Home retrofit will be undertaken with low interest rate with 2.5% and the return will be paid by a monthly energy bill. The results of this study provides some useful insights for the policy design, including the importance of developing information tools for providing appropriate information to households.

• International journal of advanced smart convergence
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• 제12권4호
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• pp.177-181
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• 2023

User reviews posted in the application market show high relevance with the satisfaction of application users and its significance has been proven from numerous studies. User reviews are also crucial data as they are essential for improving applications after its release. However, as infinite amounts of user reviews are posted per day, application developers are unable to examine every user review and address them. Simply addressing the reviews in a chronological order will not be enough for an adequate user satisfaction given the limited resources of the developers. As such, the following research suggests a systematical method of analyzing user reviews with a cost-benefit analysis, in which the benefit of each user review is quantified based on the number of positive/negative words and the cost of each user review is quantified by using function point, a technique that measures software size.

• 대한교통학회지
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• 제26권1호
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• pp.103-112
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• 2008

경제성 분석과정에서 브레이스 파라독스는 교통시설의 확충에도 불구하고 음(-)의 사회적 편익을 창출하는 형태로 나타난다. 이런 경우 사업시행 효과를 정확하게 추정할 수 없어 사업의 필요성을 판단하는데 많은 어려움을 겪게 된다. 본 연구에서는 경제성 분석 과정에서 나타나는 브레이스 파라독스 현상을 살펴보고 이에 대한 해결방안을 모색하는 것을 목적으로 하였다. 간단한 네트워크에 대한 분석결과, 경제성 분석 상에서 파라독스가 발생하는 경우는 교통량 수준이 특정 조건을 만족하는 경우에만 나타난다는 것을 확인할 수 있었다. 통행배정 기법에서는 사용자 평형보다는 체계 최적 상태의 경우가 파라독스의 발생을 줄일 수 있었다. 하지만, 통행배정 기법에 상관없이 운행비용 절감편익에 있어서는 모든 조건에 대해 파라독스가 발생하였으며, 이로 인해 전체 총 편익측면에서도 지속적으로 파라독스가 발생한다는 것을 확인할 수 있었다. 이와 같은 경제성 분석의 파라독스 해결을 위해, 본 연구에서는 운행비용을 포함하는 새로운 링크비용 함수를 제시하였다. 새로운 링크비용 함수는 운행비용 절감편익 측면의 파라독스를 완화시켜 사용자 평형 상태에서는 파라독스를 완화시켰으며, 체계 최적 상태에서는 파라독스를 완전히 제거하는 것으로 분석되었다.

• 가정과삶의질연구
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• 제29권2호
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• pp.23-37
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• 2011

This study examined the preference and the purchase intention of male and female from 20s through 405 to smart phones. This study verified the differences between the groups according to the socio-demographic factors, the usage pattern of mobile phone, and the perceived cost and the expected benefit. The analysis of the relative influence of those relevant factors was followed. The summaries of this study are as follows; First, the high level factors in purchasing smart phones were the perceived cost and the expected benefit pointed over 3.82. It means that they arc interested in smart phones highly, and if they can support to buy smart phones and situations can be permitted, they would like to buy them. Second, the differences between groups of the preference and the purchase intention were found according to the ages, the marital status and the education level. The results showed that those preference and the purchase intension were measured high at the group of the 20s-30s, the married, and the higher educational level of collage students. Third, expected benefit on smart phones was shown to be divided into two characterized factors through factor analysis. One was 'functional expected benefit' and the other was 'emotional expected benefit'. The functional and the emotional benefit on the using of smart phones were presented high level in group of over graduated students. Forth, the results of the stepwise multiple analysis, which was carried out to find out the influencing factors on the preference and the purchasing intension to smart phones, showed that the most effective factor was the functional expected benefit. The self-expressive propensity, and the education level were followed sequentially. The purchase intention was influenced by both of the functional and the emotional expected benefit. The result of this study shows that the level of the consumer's perceived cost(economic, psychological) and the expected benefit were measured high at the same time. That means that it is necessary to make the consumer information and communicating smoothly in order to lower the cost and enhance the benefit. In addition, This study has its meaning because it found out that functional expected benefit is a factor which has an influence on the Consumer Preference and Purchase Intention on Smart phone. If consumer's function requirements on smart phone are satisfied, it will be able to reduce the consumer problems and increase the consumer satisfaction. The result of this study would be applicable when Smart Phone is used as one of the auxiliary tools for smart consumption.

• 전기학회논문지
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• 제57권3호
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• pp.369-374
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• 2008

This paper presents the evaluation procedures and the estimation method for the estimation of optimal rebate level for EE(Energy Efficiency) programs. The penetration amount of each appliance is estimated by applying price function to preferred diffusion model resulted from model compatibility test. To estimate the optimal rebate level, two objective functions which express the maximum energy saving and operation benefit are introduced and by multi-objective function which can simultaneously consider two objective functions the optimal rebate level of each appliance is estimated. And then, using the decided rebate level and each penetration amount, the priority order for reasonable investment of each high-efficiency appliance is estimated compared to the results of conventional method. Finally, using a benefit/cost analysis based on California standard practice manual, the economic analysis is implemented for the four perspectives such as participant, ratepayer impact measure, program administrator cost and total resource cost.

• 대한전기학회논문지:전력기술부문A
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• 제53권5호
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• pp.296-301
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• 2004

The Available Transfer Capability (ATC) is defined as the measure of the transfer capability remaining in the physical transmission network for further commercial activity above already committed uses. Available Transfer Capability (ATC) calculation is a complicated task, which involves the determination I of total transfer capability (TTC), transmission reliability margin (TRM) and capability benefit margin (CBM). As the electrical power industry is restructured and the electrical power exchange is updated per hour, it is important to accurately and rapidly quantify the available transfer capability (ATC) of the transmission system. In ATC calculation,. the existing CPF method is accurate but it has long calculation time. On the contrary, the method using PTDF is fast but it has relatively a considerable error. This paper proposed QFA method, which can reduce calculation time comparing with CPF method and has few errors in ATC calculation. It proved that the method can calculate ATC more fast and accurately in case study using IEEE 24 bus RTS.

• 한국의류학회지
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• 제29권2호
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• pp.220-230
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• 2005

The purpose of this study was to compare clothing benefits and the types of fashion information sources according to family life cycle. Subjects were selected through stratified sampling technique in Seoul and suburban area. Collection of the research data was made using a self-administered questionnaire survey. Factor analysis, ANOVA, and Duncan test were used to conduct the data analysis on 562 out of 600 questionnaires. Clothing benefit variables were reduced to five factors : fashion/social status, individuality, function/comfort, figure flaws compensation, and economic value. The result showed significant differences on 3 clothing benefits(fashion/social status, individuality, and function/comfort) and 5 fashion information soures (celebrities, street fashion, T.V commercial, Internet/home shopping, fashion catalog) according to family life cycle.

• 한국초지학회:학술대회논문집
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• 한국초지조사료학회 2005년도 춘계 학술대회
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• pp.23-45
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• 2005

• 대한교통학회지
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• 제27권5호
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• pp.7-16
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• 2009

본 연구는 도로사업의 경제적 타당성 분석시 적용되는 편익에 대한 정확성을 높이기 위한 방안을 제시하는 연구이다. 기존 경제적 평가방법의 문제점은 모형의 정산시 교통량만을 정산하기 때문에 실제 교통량과 비슷하게 모형이 정산되지만 모형에서 나오는 통행속도는 실제 속도와 차이를 나타낼 수 있다는 점이다. 실제통행속도와 다른 모형속도는 차량운행비, 통행시간, 대기오염 절감 편익들이 잘못 산정될 수 있게 한다. 따라서, 본 연구에서는 2개의 서로 다른 VDF를 가지고 도로망에서 비슷한 교통량 정산에 의해 서로 다른 속도로 산출된 후 서로 다른 모형속도 결과에 따른 경제적 편익의 차이가 크게 발생되는 문제점을 확인하였다. 이러한 문제점에 대한 개선방향으로 교통량에 따른 정확한 속도를 산출하는 VDF 함수 개발을 포함한 3가지 개선방안을 제시하여 향후 정확한 편익산정과 이로 인한 합리적인 경제성분석이 수행될 수 있는 토대를 마련하였다.