• 대한전기학회:학술대회논문집
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• 대한전기학회 1999년도 하계학술대회 논문집 C
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• pp.1487-1489
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• 1999

The power demand has increased the groth of industry and improvement of life. In the past, the focus of an electric power company has been on the supply aspect of a management strategy, such as the stable provision of electric power through the construction of power equipment and least Cost planning. There has been a change of method in energy management. The balance of it seems to put forward to Demand Side Management(DSM) from Supply Side Management(SSM). Therefore, this paper is made a study for the method of energy grade of building.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2018년도 춘계 학술논문 발표대회
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• pp.66-67
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• 2018

Large-scale construction projects require various license and technologies for the manufacturing and handling processes. Also, the whole life cycle business process management determines the success of the project. Then, the efficiency of the business conducted by stakeholders and their possessed technology should be enhanced in order to strengthen their competitive power. For this reason, many experts pointed out to focus on the improvement of the life cycle process and efficient management. Since it is very important to keep up-to-date data and utilize it for work during the long-term project to reflect changes in the large-scale project, the most important part of the project management in project is information change management. Therefore, the objective of this study is applying configuration management(CM) technique in order to managing change data generated for planning in early phase. The result of this research will certainly assist the large-scale project managers in the development of information change management system.

• 한국자동차공학회논문집
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• 제20권6호
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• pp.46-51
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• 2012

Fuel Cell Hybrid Vehicles (FCHVs) have become a major topic of interest in the automotive industry owing to recent energy supply and environmental problems. Several types of power management strategies have been developed to improve the fuel economy of FCHVs including optimal control strategy based on optimal control theory, rule-based strategy, and equivalent consumption minimization strategy (ECMS). The ECMS is applied in this study. This strategy is based on the heuristic concept that the usage of the electric energy can be exchanged to equivalent fuel consumption. This strategy is known as one of the promising solutions for real-time control of hybrid vehicles. The ECMS for an FCHV is introduced in this paper as well as the equivalent fuel consumption parameter. The relationship between the battery final state of charge (SOC) and the fuel consumption while changing the equivalent fuel consumption parameter is obtained for three different driving cycles. The function of the equivalent fuel consumption parameter is also discussed.

• 한국조리학회지
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• 제5권2호
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• pp.261-279
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• 1999

In order to meet competitive power, foodservice should aim to satisfy customers through distinguished quality and service as well as speciality and know-how. Especially, in coming 2000 year will be openned ASEM, 2001 will be the "Year to visit Korea", 2002 will be openned Korea-Japan Soccer World Cup, with these event as a momentum the domestic foodservice industry would be continuously increased and improved. Foodservice industry is the tertiary industry with the potentiality, tremendous popularity, premanancy and future-orient, it is gradually taking root as a basic industry after going through the industrialization. Furthermore, foodservice industry aim to satisfy customer based on quality, services, cleanliness, atmosphere, timing and value, besides, it is customer closeby service which to supply value and satisfaction through systemization, being manual, being technological renovation. Strategic management of foodservice industry is as following: Firstly, marketing strategy requires positing strategy to recongnize self-brand to the customer, thus requires to get hold how to take firm in customers′ mind. And then distingushed strategy requires. So somehow it is important to secure competitive in customers′ mind. Secondaryly, it requires strategy of competive advantegy. It is not to improve unique core competence of industry which is developed and studies for a long time but to pursuit diversfication based on core of industry Thirdly, it requires strategy of customer satisfaction. In these modern days it is important how much to satisfy customer, as it could be not expect continuous frowth and development without strategy of customer satisfaction. Therefore strategy of customer satisfaction is a necessary condition for the foodservice industry.

• Nuclear Engineering and Technology
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• 제41권7호
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• pp.921-928
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• 2009

As part of an evaluation for an in-vessel severe accident management strategy, a coolant injection into the reactor vessel under depressurization of the reactor coolant system (RCS) has been evaluated in detail using the SCDAP/RELAP5 computer code. A high-pressure sequence of a small break loss of coolant accident (SBLOCA) has been analyzed in the Optimized Power Reactor (OPR) 1000. The SCDAP/RELAP5 results have shown that safety injection timing and capacity with RCS depressurization timing and capacity are very effective on the reactor vessel failure during a severe accident. Only one train operation of the high pressure safety injection (HPSI) for 30,000 seconds with RCS depressurization prevents failure of the reactor vessel. In this case, the operation of only the low pressure safety injection (LPSI) without a HPSI does not prevent failure of the reactor vessel.

• 한국컴퓨터정보학회논문지
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• 제23권12호
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• pp.145-151
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• 2018

While commercialization of IoT technologies in the safety management sector is being promoted in terms of industrial safety of large indoor businesses, implementing a system for risk management of small outdoor work sites with frequent site movements is not actively implemented. In this paper, we propose an efficient dynamic workload balancing strategy which combined low-power, wide-bandwidth (LPWA) communication and low-power Bluetooth (BLE) communication technologies to support customized risk management alarm systems for each individual (driver/operator/manager). This study was designed to enable long-term low-power collection and transmission of traffic information in outdoor environment, as well as to implement an integrated real-time safety management system that notifies a whole field worker who does not carry a separate smart device in advance. Performance assessments of the system, including risk alerts to drivers and workers via Bluetooth communication, the speed at which critical text messages are received, and the operation of warning/lighting lamps are all well suited to field application.

• 한국건설관리학회논문집
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• 제8권5호
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• pp.173-181
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• 2007

정부의 지속적인 규제 정책으로 인해 국내 건설시장은 위축되어 있는 반면 해외 건설시장은 꾸준한 성장세를 보이고 있고, WTO(World Trade Organization)체제 출범 이후 국제적인 개방화가 가속되고 있다. 따라서 우리나라의 해외건설도 과거의 단순 입찰방식을 지양하고 해외건설 수주경쟁력 확대를 위한 전략 수립이 필요한 실정이다. 본 연구는 해외건설 분야에서 사업초기에서부터 발주처에게 프로젝트의 재원확보 방안을 제시함으로써 수주경쟁력을 증대시키는 것을 연구의 주제로 삼았으며 재원확보 방안으로 양허성(원조성격)을 지닌 공적개발원조(ODA)를 대상으로 하였다. 본 연구에서는 선진국 및 우리나라의 공적개발원조를 분석하고, 관련 분야 전문가를 대상으로 해외건설 및 공적개발원조에 대한 설문조사를 실시하여 현황 및 문제점을 알아보았으며, 이를 바탕으로 우리나라 공적개발원조의 경쟁력을 분석하고 해외건설 수주경쟁력 확대를 위한 전략을 제안하였다.

• 전력전자학회논문지
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• 제24권3호
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• pp.191-200
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• 2019

This study proposes a hardware-in-the-loop simulation (HILS) system based on National Instruments' PXI platform to test power management and operation strategies for DC microgrids (MGs). The HILS system is developed based on the controller HIL prototype, which involves testing the controller board in hardware with a real-time simulation model of the plant in a real-time digital simulator. The system provides an economical and effective testing function for research on MG systems. The decentralized power management strategy based on the DC bus signaling method for DC MGs has been developed and implemented on the HILS platform. HILS results are determined to be similar to those of the off-line simulation in PSIM software.

• 한국수소및신에너지학회논문집
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• 제35권2호
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• pp.230-239
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• 2024

Efforts are being made to replace ship diesel engines with electric propulsion motors in response to emission regulations. In particular, in the case of short-range small ships, research is being conducted to replace polymer electrolyte membrane fuel cells (PEMFC) with power sources. However, PEMFC has problems such as slow dynamic response characteristics and reduced durability at high temperatures. To solve this problem, a high-precision ship model was developed with power distribution and thermal management strategies applied, and through this, the required power, heat, and power characteristics of the propulsion system according to the ship's speed profile were analyzed.

• Nuclear Engineering and Technology
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• 제49권5호
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• pp.1090-1094
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• 2017

The determinants of the public's nuclear power acceptance have received considerable attention as decisive factors regarding nuclear power policy. However, the contingency of the relative importance of different determinants has been less explored. Building on the literature of psychological distance between the individual and the object, the present study demonstrates that the relative effects of different types of perceived risks regarding nuclear power generation differ across acceptance targets. Using a sample of Korea, our results show that, regarding national acceptance of nuclear power generation, perceived risk from nuclear power plants exerts a stronger negative effect than that from radioactive waste management; however, the latter exerts a stronger negative effect than the former on local acceptance of a nuclear power plant. This finding provides implications for efficient public communication strategy to raise nuclear power acceptance.