• Journal of Korea Spatial Information System Society
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• v.5 no.2 s.10
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• pp.105-115
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• 2003

National Geographic Information Systems(NGIS) started from 1995 has greatly contributed to building GIS infrastructures and developing GIS industries. To evaluate effectiveness and achievement of NGIS, it is required to build a policy evaluation model for NGIS. This study examined prior research works on GIS policy evaluation system and analyzed limitations of them. Then, it established a model for NGIS evaluation system. The study will contribute to removing unnecessary and duplicate efforts in NGIS project by providing an efficient mean for relict evaluation. It will also heir successful implementations of NGIS.

• Proceedings of the KIEE Conference
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• 2009.07a
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• pp.1059_1060
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• 2009

신재생에너지 분야 중 가장 활발하게 개발 및 보급되는 태양광발전은 유한 에너지인 석유, 석탄, 천연 가스에 비해 비고갈성의 청정 에너지원으로 각광 받고있다. 화석연료를 사용하면서 발생 할 수 있는 지구환경 문제에 대처 할 수 있고, 수력이나 원자력발전과 달리 비교적 입지에 영향이 적을 뿐만 아니라 전력 수요지 근처에 설치하여 직접 전기에너지를 공급할 수 있는 이점이 있다. 반면에 그늘이나 구름 등 주변 환경에 영향을 많이 받고 넓은 부지와 높은 초기 투자비를 필요로 한다. 특히 태양광발전은 직류전력을 발생하므로 이를 교류로 변환시키는 태양광발전용 전력변환장치(Power Conditioning System; 이하 "PCS")가 필요하다. 본 고에서는 중소기업지원과제로 개발되어 한전 전력연구원의 태양광발전 실증시험장에서 실 계통 연계 운전을 통하여 취득한 50kW급 계통연계형 multi- string PCS의 초기 운전특성에 대하여 소개하고자 한다.

• Electronics and Telecommunications Trends
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• v.26 no.2
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• pp.126-136
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• 2011

최근 문화기술(CT) 기반으로 다양한 산업의 콘텐츠화가 급속히 진행되고 있는 가운데, 융합형 콘텐츠가 새로운 성장동력으로서 주목받고 있다. 또한 상상력과 창의력 기반의 문화적 요소가 가미된 융합형 콘텐츠 산업은 '경쟁없는 시장'으로서 국가 비즈니스 혁신의 돌파구가 될 것으로 전망되고 있다. 이런 상황에서 차세대 융합형 콘텐츠 분야의 유망 전략 산업에 대한 산업-기술 연계 로드맵 작성 및 기술기획 프레임워크(framework) 구축은 미래 기술기획 및 기술개발, 관련 산업의 활성화, R&D 투자 배분 등을 위한 사전 작업 및 방향지표로서의 의의를 가진다. 이에 본 고에서는 유망 융합형 콘텐츠 분야에 대한 산업-기술 연계 로드맵을 3가지 기술발전 경로, 즉 단위 소요기술의 향상(upgrade road), 기존 소요기술의 진화(evolution road), 단위 소요기술의 혁신(innovation road)을 반영하여 작성하는 입체로드맵으로 기술기획 프레임워크 내에서 제시 적용하도록 한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2001.10a
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• pp.663-666
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• 2001

신배전정보시스템은 국가적 차원에서 수행중인 지리정보시스템(Geographic Information System, GIS)을 기반으로 계획, 설계, 공사관리, 설비운영의 단계로 순환하는 배전업무의 특성에 따라 순시, 점검, 측정 등 현장업무에 정보체계 표준화를 이룩하고 이를 근거로 수집된 정보의 종합분석을 통해 경제적이고 합리적인 투자와 보수계획 수립이 가능하게끔 지원하는 종합시스템이다. 또한, 배전기동보수업무는 배전선로의 순시점검과 설비의 개 보수, 각종 측정과 점검, 사고와 고장 처리, 설비와 부하관리 등을 포함하는 중요한 업무 중의 하나이다. 그러므로, 이런 업무를 종합배전시스템에 연계함으로써 종합배전시스템의 장점을 기동보수시스템에서 충분히 활용하고, 또한 기동보수시스템의 핵심자료를 종합배전시스템과 연계함으로써 배전정보를 체계적이고 종합적으로 활용하는 것이 가능하다. 이를 통해 업무 생산성이 향상되고 사용자 운영의 편의성이 증대되기를 기대한다.

• KEPCO Journal on Electric Power and Energy
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• v.5 no.4
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• pp.311-321
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• 2019

With Korean Government's Renewable energy 3020 plan and 8th Basic plan for long-term power supply, renewable energy industries in Korea are active and catching attention from many relevant industry's relations. Especially with Interconnection guarantee policy established in Oct, 2016, DERs interconnection delay due to lack of allowable distribution hosting capacity is happening and reduction of reinforcement cost for distribution system where 70 % of DERs in South Korea are installed became one of important issues of KEPCO. Therefore, KEPCO needed to extract reasonable solutions to increase feasible hosting capacity of distribution feeders in order to reduce reinforcement cost under the condition of no matter in distribution system operation. This paper proposes feasible hosting capacity of distribution feeders that can be adopted and the status of DER installation in distribution system, PV output data, minimum load in distribution feeders as well as capacity of distribution lines have been investigated and analyzed in proof of the proposal.

• Journal of Service Research and Studies
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• v.8 no.1
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• pp.103-122
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• 2018

The purpose of this study is to present the direction of ELS investment by analyzing the actual investment return of the ELS commodities and analyzing the investment effect of ELS that investors have felt unsatisfactory at financial marketing service. The research method is based on the step-down type ELS. We calculated the probability of achieving early redemption condition and maturity repayment condition, early redemption estimated yield, and maturity repayment estimated yield. As the study result, the probability of achieving 100% of the early redemption condition was 74.5%, and the probability of the early redemption condition 95% was 83.0%, 90% was 89.5%, 85% was 92.5%, and 80% was 96.5% respectively. In the case of the lowest 75%, the probability of holding to maturity is analyzed to be 2.5%, and the probability of early redemption is high. The probability of the stock price growth within 65% of the maturity repayment condition was 98.5% and the probability of the stock price growth within 60%~45% of the maturity repayment condition was 100%. 65% of maturity repayment condition was analyzed as 1.5% risk of principal loss, and the probability of achieving the committed yield of maturity was high. As a key measure of ELS investment, it is advantageous to select a commodity with a low rate of maturity repayment and a high rate of early redemption.

• International Commerce and Information Review
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• v.17 no.1
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• pp.115-134
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• 2015

Stable economic growth and job creation through the attracting companies is a major challenge for local governments. Companies are asked to select a place to invest and finally considering the conditions. Local governments will take advantage of a variety of incentives to attract companies the means to overcome the unfavorable position relative to conditions. Investment incentives should be applied differently depending on the investment objective, investment, corporate investment period. However, Local governments has developed a similar promotion activities through support under the same legal system. This does not result in a substantial investment activities. In this study, we derive the Introduction of differentiated support system for Gangwon Province. In particular, logistics and waste water treatment cost support, upward adjustment of training subsidies were looking for concrete improvements in the investment support system.

• Korea Trade Review
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• v.43 no.4
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• pp.155-175
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• 2018

This study estimates the technical efficiency and total factor productivity(TFP) of and analyzes the relationship between TFP and exports for Korean manufacturing companies from 2000 to 2016. Specially, TFP is decomposed into Technical Change(TC), Technical Efficiency Change (TEC), and Sale Effect(SE), and compared between large and small enterprises. First, in the case of technical efficiency, the Korean economy has been very vulnerable to external shocks, such as the sharp decline following the 2008 financial crisis. The efficiency of the electronics, automobile, and machinery sectors is low and needs to be improved. In addition, the technological efficiency of large enterprises is higher than that of SMEs in most manufacturing sub-sectors except for non-ferrous metals. In the case of TFP, most changes are due to TC, and the effective combination of labor, capital and the effect of scale have little effect, suggesting that improvement of internal structure is urgent. In addition, volatility due to the impact of the financial crisis in 2008 was much larger in SMEs than in large companies, so external economic impacts are more greater for SMEs than large enterprises. The relationship between TFP decomposition factors and exports shows that TC has a positive effect only on exports of SMEs. Therefore, in order to increase exports, in the case of SMEs, R&D support to promote technological development is needed. In the case of large companies, it is necessary to establish differentiated strategies for each export market, competitor company, and item to link efficiency and scale effect of exports.

• Korean Journal of Social Welfare
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• v.57 no.4
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• pp.119-146
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• 2005

The purpose of this study is to find out the structural and developmental characteristics of inter-organizational community network of the school social work and the characteristics of direct workers and the school social work organizations delivering services to the children in low-income families, and to identify the magnitude of efficient structure for networking for the children living in Kayang-dong. By searching out the central organization and block modeling, this study attempted to show the characteristics of inter-organizational community network for the children. The research sample was 18 organizations, and the data were collected by a survey questionnaire and analyzed by SPSSWIN 12.0 and UCINET 6.29. The main results show that the social welfare organization is the central organization in almost every dimensions(information exchange, client referral, cooperation, resource exchange) and education organizations play an important role in betweenness centrality. Also it can be evaluated that the present developmental stage of the network is collaboration. Based on the research results, implications for the future practice are discussed.

• Journal of the Economic Geographical Society of Korea
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• v.3 no.1
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• pp.35-51
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• 2000

International trade flows have been determined by social, cultural and political environment around the world as well as economic elements. The environment of international trade has changed rapidly as the world has globalized. Significant changes have been generated in the international trade flows. This study investigates the influences of economic globalization on the international trade flows. The changes in international trade flows examined comprehensively by integrating trade with industrial locations, investment, and the various trade related environments. The focus laid on the integration of world economies, such as widening and intensifying international linkages in economic, political and social relation. Special concerns are laid on the impacts of Foreign Direct Investments (FDI) by Trans National Corporations (TNCs), which affect the supply-demand distributions of commodities by industrial relocations, and the expansion of intra-firm trade flows on the international trade flow patterns. The geographical characteristics of tile origins and destinations of FDI flows analyzed, since the spatial patterns of the intra-firm trade flows are determined by them. The FDI and intra-firm trade flow patterns have changed significantly over time.