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북한 발전과 주민 안전을 고려한 북한 신재생에너지 전력 시장 가치 추정
장형식,구일섭 대한안전경영과학회 2022 대한안전경영과학회지 Vol.24 No.3
While protecting its lives and property from natural disasters such as floods and droughts, North Korea needs to develop into an informationized industrial society by securing renewable energy power in the era of energy transition. In addition, existing research has considered that a policy of continuous and consistent expansion of renewable energy based on the safety of the lives of ordinary people could be the solution. South Korea needs to recognize that the supply of energy for a minimum of living is more important to the North Korean people than the economic benefits of securing North Korea's renewable energy market. Therefore, in this paper, from that point of view, we have calculated the amount of electricity that North Korea lacks necessary for the lives of its inhabitants that can be replaced by renewable energy, and considered ways to estimate the market value.
공기업 해외발전 EPC 사업 진출 시 조직성향에 따른 위험관리 방안에 관한 연구
장형식,구일섭 대한안전경영과학회 2022 대한안전경영과학회지 Vol.24 No.2
Power generation construction projects involving large amounts of capital can affect the survival of a company along with huge economic losses in the event of a business failure. In general, private companies are organizations with challenging risk taking tendencies while public companies have a risk averse tendency to avoid risk, so these differences in organizational tendencies make it difficult to respond to risk. In particular, public companies are more likely to fail than private companies because they choose the contradiction of risk picking to enter overseas markets with high uncertainty despite their tendency to risk averse due to the nature of the organization. Therefore, these organizations need risk management techniques that reflect a risk-averse strategy. Accordingly, this paper analyzes the risk management research papers of the existing overseas development EPC business in order to find the risk management techniques related to the organizational tendencies of public companies and proposes “establishing a performance audit system for risk management of the organizational tendencies of public companies” as a way to extract the risk factors through the examples of overseas development projects of public companies and to manage the organizational tendencies of public companies that affect them.
장열성(Yeolsung Jang),김형식(Hyeongsig Kim),우성동(Sungdong Woo),박찬준(Chanjun Park),엄인용(Inyong Ohm) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Liquefied petroleum gas(LPG) is a popular and widely used alternative fuel, due mainly to its abundance and indigenous availability at attractive prices. A port injection type LPG fuel system characteristics were investigated to adopt the system to a LPLi engine. It was also studied the improvement of starting performance. The result in all the research was found using by V-6 LPLi engine, 2656㏄, mainly the performance of engine start. In this study, engine control variables such as injection pressure, fuel injection duration were changed by using injector driver(IC5160) at engine start to fine out the trends of engine speed variations and stability of engine start operation. Through the study, it is observed that the injection pressure affected to the stability of engine start operation and engine speed but the effects were insignificant on it. Increase in injection duration led to decrease of engine speed and improve of stability of engine start operation. On the other hand increase in ISA opening rate let to increase of engine speed and deterioration of stability of engine start operation. This result may offer the idea that how the work of improving engine start performance.