• 전기학회논문지
• /
• 제64권5호
• /
• pp.661-666
• /
• 2015

This paper proposes a method for solving running cost problem by minimizing switching reactive power compensation devices. An objective function was modeled by calculating the weighting value of cost, and a solution was derived using ILP. This paper suggests optimal coordinative control method between FACTS, Shunt Reactors, Capacitors and OLTC. Therefore, it is valuable for decision maker in determining order and capacity of devices which gaining a voltage stabilization. As a result, the objectives of voltage stabilization and cost minimization were achieved simultaneously. This realizes the economic efficiency of the system. We start by showing how to solve systems of linear equations using the language of pivots and tableaus. The effectiveness of this technique is demonstrated in modified PSS/E MIGUM 45 bus system. The simulation results show the effectiveness of this algorithm by comparing the outcome withseveral established methods.

• 산업진흥연구
• /
• 제5권3호
• /
• pp.37-44
• /
• 2020

현재 방위산업 R&D 특성이 반영되지 못한 지체상금 제도를 적용하고 있어 방산업체의 경영악화 및 전력화 지연 등 문제가 되고 있다. 본 연구의 목적은 방위산업 R&D 특성이 반영된 지체상금 제도 개선방안을 연구하여 방위 산업 발전과 효율적으로 전투력 증강을 추진하는데 기여하기 위한 것이다. 연구는 방위산업 R&D 특성, 국가 R&D, 지체상금율, 감면 및 면제 절차와 기존연구를 분석하였다. 그리고 지체상금 부과 실태 및 지체 원인분석 등을 기초로 델파이 기법을 적용하여 개선방안을 연구하였다. 최신 기술이 적용되어 성공여부가 불투명한 방위산업 R&D에 상용품 '제조·구매' 기준을 적용하는 것은 적절하지 않은 것으로 연구되었다. 연구결과 지체 발생 방지 방안으로 우수 기술 보유 업체 선정 등 4개의 방안과 지체가 발생 시 합리적 처리를 위해 지체상금 경감 및 차등 적용 등 3개의 방안이 도출되었다. 방위산업 R&D의 특성으로 인해 방위사업법에 의해서 업무가 진행되는 것처럼 마찬가지로 지체상금 제도도 방위산업 R&D 특성이 반영된 제도로 개선한다면 방위산업은 발전하게 될 것이고, 효율적이고 경제적인 무기체계 획득에도 기여할 것으로 사료된다.

• 가정과삶의질연구
• /
• 제16권4호
• /
• pp.41-54
• /
• 1998

The purpose of this study is to analyze the compensation of rurul women receive instead of their physical participation and contribution to their households. I am specifically concerned with the rural women's economic status in relation to their decision making power on household and agricultural economic issues as well as property held in their names. The data of 166 rural men and women in Jyungpook Province are collected by using questionnaires in June 1998. The findings of this study are as follows; 1) Rural women contribute average 53% of their husbands' contribution to agricultural labor which is on average 43.0% of total annual household income. 2) The decision making power on major economic issues remains still very low among rural women. Rural women are still excluded from the possibility of actually owning assets such as property,. Only 189% had assets under their names for assets. 3) The significant factors concerning the rural women's decision making power on econo ic issues are gender-role attitudes of rural women and the husband's judgement of how much their wives contribute to the annual household income. 4) the major factors which influence rural women owning household assets are the decision making power on economical matters contribution to the annual household income and each woman's education level.

• 지역연구
• /
• 제10권1호
• /
• pp.89-104
• /
• 1994

Recently, environmental issues have remained high on the agendas of public discussion and economic research. In the case of Korea, democratic movement in the late 80's centered people's concerns on the environmental dispute according to landfill, correctional institution, crematory, and nuclear powerplant, etc., Moreover, the failure to provide these kinds of facilities in time have caused serious social problems associated with environmental protection and economic development. The purposes of this paper are threefolds. First, they organize foreign and domestic NIMBYS case studies which have been settled in a desirable way. The second concern is to analyze the consciousness of NIMBYS resident by making up a questionnaire. Third, they estimate the market values of urban unwanted facilities by employing CVM(Contingent Valuation Method) procedure. The results of the study have a double implication : that NIMBYS resident are reluctant to accept government mechanical compensation based on simple published land values, and that unique concensus to preserve the viability and healthfulness of our environment among three main bodies: residents, people, government is necessary in solving NIMBYS subjects in Korea. In addition, this first implication develops to emphasize the intrduction of releveant measures taken to reconcile NIMBYS disagreement, which are complete openness of government policies, full support of local economic development, and perfect management of pollution protection systems for NIMBYS facilities.

• 한국도로학회논문집
• /
• 제16권1호
• /
• pp.75-89
• /
• 2014

PURPOSES : This study evaluates the economic value of national highway construction projects using Real Option Pricing Models. METHODS : We identified the option premium for uncertainties associated with flexibilities according to the future's change in national highway construction projects. In order to evaluate value of future's underlying asset, we calculated the volatility of the unit price per year for benefit estimation such as VOTS, VOCS, VICS, VOPCS and VONCS that the "Transportation Facility Investment Evaluation Guidelines" presented. RESULTS : We evaluated the option premium of underlying asset through a case study of the actual national highway construction projects using ROPM. And in order to predict the changes in the option value of the future's underlying asset, we evaluated the changes of option premium for future's uncertainties by the defer of the start of construction work, the contract of project scale, and the abandon of project during pre-land compensation stages that were occurred frequently in the highway construction projects. Finally we analyzed the sensitivity of the underlying asset using volatility, risk free rate and expiration date of option. CONCLUSIONS : We concluded that a highway construction project has economic value even though static NPV had a negative(-) value because of the sum of the existing static NPV and the option premium for the future's uncertainties associated with flexibilities.

• 보건행정학회지
• /
• 제9권2호
• /
• pp.21-39
• /
• 1999

An increasing number of hospitals are seeking for new or mixed compensation strategies to improve the productivity of their medical staff in the struggle to provide high quality medical services at low costs amid the economic hardship. To motivate physicians toward the right direction, it is necessary to effectively evaluate their performance that provides a basis for compensation. However, productivity has been historically difficult to measure, particularly for physicians in academic medical centers who are expected to engage in research, education, and patient care simultaneously. The objectives of this study were to define performance measures of physicians and clinical departments in academic medical centers. to examine correlations between the measures. and to investigate factors affecting the measures. The performance data of 212 faculty physicians in 17 clinical departments in two university teaching hospitals affiliated to one medical school during the fiscal year 1994 was used for analyses. Patient care revenue, net profit. and adjusted number of patients were defined to measure the performance in patient care. and number of articles published in academic journals and research grant were defined for research activities. Both individual physicians' performance measures and per physician measures of clinical departments were analyzed. All measures defined to evaluate individual physicians' performance were positively related to each other. Clinical department and rank of faculty position were statistically significant predictors of revenue. and hospital. clinical department. and rank were significant predictors of net profit. journal publication. and research grant. Patient care measures defined to evaluate clinical departments were related to each other. so were research measures. and no significant correlations were found between patient care measures and research measures. Also found were large differences in department. ranks when clinical departments were evaluated by absolute per physician performance measures and evaluated by annual rate of changes in performance measures. These findings suggest that departmental performance measures opposed to individual performance measures are relatively free from problems of factors affecting the performance measures that are not in control of clinical departments or individual physicians. Results from the correlation analysis of departmental performance measures indicates that measures of research performance should be included in the evaluation to promote research activities in academic medical centers.

• KDI Journal of Economic Policy
• /
• 제33권2호
• /
• pp.41-79
• /
• 2011

본고는 은행 임원에 대한 주식기준 보상, 특히 스톡옵션과 은행의 위험추구 간의 관계를 이론적으로 검토하고, 국내 은행 자료를 이용하여 실증적으로 분석한다. 이론적으로 은행의 주주는 유한책임(limited liability)의 특성으로 인해 사회적 최적 수준보다 위험한 자산 포트폴리오를 선택할 가능성이 있다. 이는 포트폴리오의 범위 확대에 따른 기대수익 증가가 수익 변동성의 폭 증가보다 크지 않을 경우 발생한다. 이 경우 주주는 스톡옵션 형태의 성과보상을 통해 경영자의 위험추구를 유도할 수 있다. 이러한 이론적 예측과는 달리 국내 은행 자료를 이용한 실증분석 결과는 스톡옵션 부여가 위험추구를 유도한다는 가설을 지지하지 않았다. 은행 임원에게 부여한 스톡옵션은 가격기준 위험지표와 투자기준 위험지표 모두에 유의한 영향을 미치지 못한 것으로 분석되었다. 이는 미국에서의 선행연구 결과와는 상반된 것으로, 분석 자료가 포함하지 않는 형태의 보상이나 규제효과 등 국내 은행업의 특수성에 기인한 것으로 볼 수 있다.

• 전력전자학회:학술대회논문집
• /
• 전력전자학회 2001년도 Proceedings ICPE 01 2001 International Conference on Power Electronics
• /
• pp.480-483
• /
• 2001

Recent power quality measurement projects report that voltage sags are the most frequent disturbances in the sites [1]-[4]. DVRs were emerged as the best effective and economic solution for this problem [11]. This paper analyzed the power flow of a DVR in distribution grids. This paper showed various operation modes and boundaries such as inductive operation, capacitive operation, and minimal power operation beside the in-phase compensation.

• 수산경영론집
• /
• 제31권2호
• /
• pp.11-26
• /
• 2000

The study tries to extend the Kang and Kim's model(1997) for evaluating fisheries damages caused by a large scale coastal reclamation. The paper tries to suggest a more generalized model by adopting new applicable variables such as the decreasing rate of production quantity amount and decreasing numbers of variables for simplification and derivation of quantative results. The paper also tries to suggest the decision model for fisheries administrative measures on the basis of the degree of damages.

• 한국전자파학회논문지
• /
• 제30권5호
• /
• pp.356-364
• /
• 2019

최근 정부는 주파수의 효율적 이용을 위하여 이용자에게 주파수의 경제적 가치를 부과하겠다는 정책을 발표한 바있다. 이에 따라 다양한 용도의 주파수에 대한 경제적 가치를 측정하려는 시도가 있을 것으로 예상된다. 이러한 측면에서 본 연구는 주파수 공용통신 용도의 주파수의 경제적 가치를 최소비용대안 방식으로 측정하고자 하였다. 이 경우, 주파수의 가치는 해당 주파수가 주어지지 않을 경우 다른 방법으로 동 서비스를 제공하는데 들어가는 비용으로 측정할 수 있으며, 주파수 공용통신의 경우 이는 LTE 망을 통하여 제공하는데 소요되는 비용이 된다. 즉, TRS 용 주파수의 가치를 LTE 망 이용대가, 설비투자비용, 단말기 보조금, 보상금 등의 합계로 추정해 보았다. 본 연구의 결과는 향후 다른 용도의 주파수 이용대가 산정에도 시사점을 제공할 수 있을 것으로 기대된다.