• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2005년도 춘계학술대회
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• pp.412-415
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• 2005

Solar thermal power generation is one of promising and well-proven ways to convert solar energy to electricity. Though it requires high initial cost for system construction and continuous efforts for maintainment. it is more positive in terms of efficiency than other solar power generation technologies. Moreover, solar thermal power generation allows additional benefits of cheap thermal storage and easy hybridization with other fossil fuel-driven power generation. Owing to these benefits, large scale solar thermal power generation technology is expected to be competitive to other commercial technologies in the near future. In this paper an overview on the solar thermal hybrid power generation technology and the state of the art in Korea were briefly introduced.

• 대한전기학회논문지:전력기술부문A
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• 제52권2호
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• pp.107-113
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• 2003

In a deregulated electric power market, a demand function to consider the characteristics of electric power consumers should be required. It is essential that the optimal power flow algorithm with object function of social welfare maximization using the demand function for a competitive electric power market is applied to resolve in a point of economic benefits as well as the security of power systems. Therefore, in this paper, we implement the optimization problem based on linear programming to consider the characteristics of electric power consumers using the demand function and analyze not only the nodal cost for generations and demands but also the variation of demands as a function of the characteristics of electric power consumers through numerical studies.

• KEPCO Journal on Electric Power and Energy
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• 제8권2호
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• pp.137-141
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• 2022

To inspect the power facility faults using artificial intelligence, it need that improve the accuracy of the diagnostic model are required. Data augmentation skill using generative adversarial network (GAN) is one of the best ways to improve deep learning performance. GAN model can create realistic-looking fake images using two competitive learning networks such as discriminator and generator. In this study, we intend to verify the effectiveness of virtual data generation technology by including the fake image of power facility generated through GAN in the deep learning training set. The GAN-based fake image was created for damage of LP insulator, and ResNet based normal and defect classification model was developed to verify the effect. Through this, we analyzed the model accuracy according to the ratio of normal and defective training data.

• KEPCO Journal on Electric Power and Energy
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• 제2권1호
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• pp.133-141
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• 2016

비록 미국에서는 1970년대 중반부터 최근까지 신규 원전프로젝트 건설이 없었지만, 여러 국가에서 주로 에너지 시큐리티와 전력에너지원 다변화 정책의 일환으로 원전의 신규건설이 지속되어 왔다. 금세기 초부터 여러 가지 이유로 원자력 산업은 재부흥이 일어나고 있는 양상이었고, 원전 프로젝트에 대한 투자에 있어서도 민간 금융부문로부터 긍정적인 관심을 불러 일으켰다. 하지만 2008년도의 세계적 금융위기와 이후 이어진 경제발전 둔화는 금융규제와 더불어 주요 파이낸싱의 원천인 상업은행들의 원전 프로젝트에 대한 의욕을 상실케 했다. 반면 원자력 발전의 경제성은 환경적 이득 측면과 비용측면에서 타 전원대비 유리하다는 것을 보여준다. 그리고 기술발전과 강화된 안전관련검사 및 모니터링은 원전의 안전성에 대한 의구심을 많이 완화시켰다. 따라서 원전 시장의 향후 확산에 대한 전망은 상이한 가정별로 비교적 큰 차이가 있지만 긍정적인 편이다. 2009년 12월 한국전력이 UAE원전을 수주하면서부터 원전시장에서의 경쟁은 큰 변화를 겪고 있다. 많은 경쟁자들이 정부의 지원을 등에 업고 새로운 원전 프로젝트를 수주하기 위해 공격적이고 새로운 파이낸싱 패키지를 가지고 시장에 진출하고 있다. 본 논문은 신규원전 시장의 전망, 원전의 상대적 경쟁력, 리스크 관리방안, 파이낸싱의 과제들을 분석하고 신규원전 수주 경쟁력 제고를 위한 대안들을 제시하고자 한다.

• 아동학회지
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• 제23권5호
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• pp.105-121
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• 2002

This ethnographic study investigated aspects of negative social power in 4-year-old children and characteristics of the children who use it. The negative use of social power included taking the possessions of peers without permission, ignoring classroom rules, controlling, rejecting, and threatening others. Most children who abused social power behaved as controllers and were popular children or had a following within the group. They were physically superior to peers, of competitive disposition, and had a well-developed capacity for verbal expression; they were self-centered and had a high level of cognitive ability. Further areas for ethnographic research into the nature of the negative use of social power in young children include training in perspective taking, age differences, and factors that contribute to the development of negative social power in young children.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2004년도 하계학술대회 논문집 A
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• pp.126-128
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• 2004

In these days, our social infra which are computer and internet has been developed and our community has been digitalized with a large quantity information that can be sharable or productive. So we can say that older knowledge organization based on the man power is changing with automatical and intellectual aspect. Thus we have to apply this movement to get the high efficiency and the competitive power in the organization and to take the voluntaries attitude of operator with real time inputting or fast calculating speed. Beside most of developed countries are owned their power system analysis software. Like kind of this facts can affect for national reliance. So in this paper we propose that the suggestion for both field power system and IT how these can be cooperated. The note that this paper is came from the project which name is Graphics Power Flow analysis.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1995년도 하계학술대회 논문집 B
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• pp.928-930
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• 1995

The power telecommunication network is a important base construction of power company. The requirements of power plant operation, office automation, subscriber services make it to go on evolution for new structure and advanced services. For these reasons its evolution strategy establishment is needed for systematical improvement. In this paper, we established the structure of power integrated information network which will be able to adapt international standard trends, to support original power prodection, to have competitive power in the telecommunication service market, and suggest evolution strategy schemes for stepwise development.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 2003년도 학술대회논문집
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• pp.349-354
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• 2003

Airport facility is infrastructure that become external creditworthiness and linear measure of country competitive power. Among them, receive and supply of electric power facility of airport is very important in peculiarity, trustability, safety side of airport. In this parer, sorted domestic airline as 4 classes by code to accomplish standardization for receive and supply of electric power facility of airport. And established justice and coverage about receive and supply of electric power facility using without any standard present and analyze problem for receive and supply of electric power facility of existing airport and presents standard. Finally, present standard single-line diagram by airport grade and system grade standard of receive and supply of electric power facility of airport.

• 산업경영시스템학회지
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• 제42권3호
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• pp.109-115
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• 2019

Most demand forecasting studies for telecommunication services have focused on estimating market size at the introductory stage of new products or services, or on suggesting improvement methods of forecasting models. Although such studies forecast business growth and market sizes through demand forecasting for new technologies and overall demands in markets, they have not suggested more specific information like relative market share, customers' preferences on technologies or service, and potential sales power. This study focuses on the telecommunication service industry and explores ways to calculate the relative market shares between competitors, considering competitive situations at the introductory stage of a new mobile telecommunication service provider. To reflect the competitive characteristics of the telecommunication markets, suggested is an extended conjoint analysis using service coverage and service switching rates as modification variables. This study is considered to be able to provide strategic implications to businesses offering existing service and ones planning to launch new services. The result of analysis shows that the new service provider has the greatest market share at the competitive situation where the new service covers the whole country, offers about 50% of existing service price, and allows all cellphones except a few while the existing service carrier maintains its price and service and has no response to the new service introduction. This means that the market share of the new service provider soars when it is highly competitive with fast network speed and low price.

• 디지털융복합연구
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• 제9권6호
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• pp.187-196
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• 2011

본 연구는 스마트워크 산업 경쟁력 분석과 육성방안을 알아보기 위해, 스마트워크 산업 전문가 117명 대상으로 설문조사 하였으며, 스마트워크 시장성 전망과 국제경쟁력 분석을 하였다. 조사결과 첫째, 클라우드 컴퓨팅 산업에 대한 성장성 인식이 매우 높게 나타났다. 둘째, 스마트워크 산업의 수익성 높은 산업군으로 보안산업, 클라우드 컴퓨팅 산업, 모바일 오피스산업 등이다. 셋째, 스마트워크 산업군중 국제 기술경쟁력 수준이 높은 산업군은 스마트러닝 산업, 모바일 오피스 산업 및 보안산업이다. 끝으로, 정부차원에서 집중 육성해야할 산업은 보안산업, 클라우드 컴퓨팅산업, 스마트워크용 SW 산업, 스마트라닝 산업 등이다. 이러한 결과를 통해 향후 스마트워크 산업들 중 정부 차원의 집중 육성분야를 선정하고 활성화 정책을 마련하는데 이용하고자 한다.