• 한국해양학회지
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• 제15권1호
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• pp.58-61
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• 1980

Water movements at nine different layers were observed from July 31 to August 2, 1976 at station H, which has water depth 42 meters and 3km far from the coast of Wolsong, and dispersion coefficients were computed from these current data, then relative magnitudes of dispersion coefficients were calculated at each layers. Relative magnitudes of dispersion coefficients based on the surface value are 62% at 5m layer, 24% at 10m layer, 20% at 15m and 20m layers, 17% at 25m layer, 24% at 30m layer, 28% at 35m layer and 15% at bottom layer, respectively.

• Communications for Statistical Applications and Methods
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• 제5권1호
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• pp.231-238
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• 1998

A two stage shrinkage testimator for the mean of an exponential distribution is considered with the assumption that an initial estimate of the mean is available. Mean squared error(MSE) of testimator and its relative efficiency (to usual single sample mean) are briefly reviewed. It is shown that relative efficiency depends only on the ratio of true mean value and its initial estimate.

• 한국초지학회:학술대회논문집
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• 한국초지조사료학회 2001년도 제25회 정기총회 프로그램 제39회 학술발표회 및 특별강연 초록(한국초지학회)
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• pp.105.1-105
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• 2001

• Journal of Chest Surgery
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• 제34권4호
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• pp.275-295
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• 2001

• 대한교통학회지
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• 제35권5호
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• pp.434-446
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• 2017

본 연구는 공항에서 활용되는 새로운 지표를 제시하고자 시작되었다. 일반적으로 공항에서는 여객과 화물을 처리하게 되며, 공항은 이를 통해 수익을 창출하게 되는 것이다. 하지만 공항들 모두가 여객과 화물처리실적이 동일한 분포를 보일 수는 없는 것이다. 여러 공항들을 상호비교 분석할 경우, 통일된 공항처리량 지표가 적용되어야만 공정한 결과를 기대할 수 있는 것이다. 현재 사용되고 있는 여객과 화물을 하나로 통합하여 적용하는 지표로는 '공항처리량단위(Work Load Unit)'가 있으며, 이는 여객 1명의 가치가 화물 100Kg의 화물량과 동등하다는 가정을 한 것이다. 기존의 WLU는 타당한 근거나 분석을 통해 설정되었다기보다는 공항에서 수행된 업무부하 정도에 관한 경험들을 바탕으로 설정된 것이므로 논란의 여지가 많다. 이와 같은 한계를 극복하고 새로운 지표를 제시하는 것이 본 연구의 목적이다. 여러 가지 접근방법을 적용할 수 있겠으나, 본 연구에서는 화물과 여객이 공항수익에 기여하는 상대적 가치가 어떻게 되는지를 비교하는 방법을 적용하였다. 화물가치와 여객가치를 분석하기 위해서 공항수익을 크게 항공기 운항관련 수익, 여객처리 관련 수익, 상업수익 등으로 구분하였다. 상대가치 분석을 위해 아시아 14개 공항, 유럽 18개 공항, 북미 지역 18개 공항 등 총 50개 공항이 선정되었다. 최종분석 결과에 따르면, 여객 1명의 수익기여를 기준으로 할 때 화물 280Kg과 동등하다는 결론을 도출하였다. 이는 기존에 적용되던 여객 1명당 화물의 가치를 100Kg으로 설정한 것보다 높은 수치를 보였다.

• Asian Journal of Innovation and Policy
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• 제6권2호
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• pp.192-205
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• 2017

The aim of this study is to investigate the relative impact of the image of information service on customer's perceived value and satisfaction of R&D information. It also seeks to assess the moderating effect of service users' skills on the value of the service image on the customer. For this purpose, a field study was conducted on users of a public R&D information service called NTIS (National Technology Information Service) in Korea. The findings show that the information service image has a significant impact on customers' perceived value and satisfaction. In addition, customers' perceived value is found to be an important indicator in strengthening customer satisfaction. Findings also reveal that individual personal computer skills moderate the relationship between service image and information value. Further research is needed to strengthen the independent variable in view of the increasing pressure to improve public service quality and customer management.

• 한국건설관리학회논문집
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• 제5권4호
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• pp.147-154
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• 2004

Project value can be increased by implementing the most suitable one or more Value Management Processes (VMP). For the past decades, a variety of innovative management processes have been increasingly introduced into the construction industry. Each VMP is considered to be significantly beneficial for capital facility projects to proactively achieve one or more project value objectives. This paper covers the compilation of the 44 VMPs and provides their leveraging project characteristics that require the implementation of one or more VMPs. The results of data collection establish relative importance between the VMPs and the project characteristic factors in collaboration with 51 experts from both industry and academia. In the lack of industry awareness of both VMPs and their causal factors, the results of this study can facilitate the implementation of the VMPs and ultimately enhance the value of a particular capital project.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.111-113
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• 2015

Floats are used by the parties involved in a construction project. The owner may use float by changing order(s) or by executing risk avoidance plan; the contractor may use it for leveling resources or substituting activities' construction methods to reduce costs. Floats are accepted either just as by-product obtained by critical path method(CPM) scheduling or as asset having significant value. Succinctly, existing studies involved in float value does not consider its' changes on project time domain. It is important to identify float ownership and to quantify its' corresponding values. This paper presents a method that quantifies float value of money that changes over project execution. The method which accurately computes the monetary value of float may contributes to resolve conflicts relative to float ownership and/or delay issues among project participants. It compares the difference between the monetary value of total float - on non-critical path in each and every schedule update. It makes use of critical path method (CPM) and commercial software with which practitioners are already familiar.

• 한국지역지리학회지
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• 제17권4호
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• pp.443-458
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• 2011

본 연구는 지리 정보량에 따른 고등학생들의 공간 인식 변화에 대해 지가 형성 요인을 중심으로 살펴보는 것을 목적으로 하고 있다 사례 연구 지역은 송탄관광특구의 일부 지역으로 설문 대상 학생들에게는 생소한 지역이다 연구 결과는 다음과 같다. 첫째, 구시가지와 신시가지인 두 지역의 '최고가라고 학생들이 인식하는 표준지와 그렇게 인식한 이유'에 대한 분석 결과, 최고가 표준지의 지가 형성 요인으로 절대적 요인보다는 상대적 요인이 더 중요하다고 인식하고 있다. 둘째, 특성이 다른 두 지역의 최고가 표준지의 선택 이유에 대한 인식에서 차이를 보이고 있다. 셋째, 같은 지역이더라도 지리 정보량에 따라 지가 형성 요인에 대한 인식이 변하고, 제공한 지리 정보량이 늘어나면서 최고가 표준지의 선택율도 증가하였다. 마지막으로, 어떤 지역의 지가 형성에 결정적인 영향을 미치는 시설이 존재한다고 인식하고 있다.

• 아태비즈니스연구
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• 제13권3호
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• pp.433-448
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• 2022

Purpose - The purpose of this study is to empirically analyze users' continuous use intentions using the characteristics of live commerce in China. Design/methodology/approach - Social presence, influence of information source (Wang Hong), convenience, marketability, reliability, personal innovativeness, and social influence were selected as elements that affect the perceived value of users, and an assumption that perceived value would affect continuous use intention was set. 515 samples were obtained from Chinese consumers through a Chinese online questionaire survey. IBM SPSS 26 and AMOS was used for statistical testing. Findings - First, social presence, Wang Hong, convenience, marketability, and reliability, which are the quality characteristics of live commerce services, affect the perceived value of users and user's continuous use intention. Second, the perceived value of users plays a mediating role between the quality characteristics of live commerce service and the continuous use intention. Third, personal innovativeness plays a moderating role in the effect of live commerce service quality on the perceived value of e-commerce users. Fourth, among the relative effects of the service quality characteristic variables, the relative effect of reliability is the greatest followed by that of convenience, marketability, and Wang Hong, in order of precedence, and the effect of social presence is the smallest. Research implications or Originality - South Korean government's plan to support for advancing into live commerce in China were presented as strategic implications for exporting South Korean products to China through online services including live commerce.