• 한국환경과학회지
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• 제10권4호
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• pp.253-258
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• 2001

A macroeconomic minimodel was simulatedto suggest the public for sustainable us of Nakdong River Basin. The minimodel for the simulation shows the interrelationships between natural environment and economic activity. Topsoil, water, economic assets, and money stock are plotted for 300 years, beginning with 1996 in each simulation. The computer simulation runs suggest that the Nakdong River Basin system in the near future may strongly be influenced by the favorable availability of outside resources, while the economic assets and money stock may be declined by indigenous environmental stock depletion. The simulation run made under the constant decrease in systems purchased inputs with investment ratio of developed country and for sustainable use. The results of simulation shows the recover of natural environment and decrease of economic activity under these condition. Therefore, the economic structure of Nakdong River Basin should be transformed from the present industrial structure to the social-economic structure based on an ecological-recycling concept which depend on renewable resources rather than industrial structural which depend on outside resources.

• World Technopolis Review
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• 제2권1호
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• pp.32-42
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• 2013

Science and Technology Park (STP) is perceived to be a vehicle in promoting innovation-based economic growth within the framework of regional and national innovation systems. STP is a tool to encourage regional innovation and competitiveness in increasing contribution of science and technology in economic development. STP can also be a leading sector in creating conducive environment for local community's technopreneurship. In relation to the vision outlined in the 2025 Indonesian Master Plan of Acceleration and Expansion of Indonesia's Economic (MP3EI), STP is stated to be an important element in creating innovation within the framework of Special Economic Zone among six Economic Corridors. Hence, the government of Indonesia continues to encourage the development of STPs in Indonesia by involving local governments, universities, business players and stakeholders surround the area. Ultimately, STP is a platform in developing National Innovation System (NIS) and Regional Innovation System (RIS).

• 한국생활과학회지
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• 제12권2호
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• pp.215-223
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• 2003

This study aimed to understand the economic ethics among Koreans today and explored the differences of the attitudes toward the economic ethics depending on the consumers' characteristics. As results of the study, 1) consumers tended to emphasize the business ethics including their responsibility on the society and ethics of the economic systems including fairness. But their economic ethics to themselves were very flexible and acceptable from the self-centered views. 2) Consumers living in the city area, aged 20's, being on more high level of the social status, and not having religion had more self-centered economic ethics than others.

• 자원환경지질
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• 제4권1호
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• pp.19-32
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• 1971

Summarizing the past and recent data on pre-Cambrian System in Eastern Asia, it can be concluded that the pre-Cambrian System are composed of the sediments of having four cycles of sedimentation. It is also known that most of pre-Cambrian Systems known so far belong to either one of transgression facies or regression facies in the four sedimentation cycles. The pre-Cambrian Systems can be divided into four stages, that is, Sinian, Hutoan, Liahoan, and Taishanian stage. It is supposed that all pre-Cambrian Systems in Korea will belong to one of these four cycle sedimentations. Therefore, the reasonable way of study of Korean pre-Cambrian Systems is to investigate which stage they belong to.

• 한국지진공학회논문집
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• 제18권1호
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• pp.1-8
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• 2014

The purpose of this study was to investigate the performance of hollow reinforced concrete bridge column systems with reinforcement details for material quantity reduction. The proposed reinforcement details have economic feasibility and rationality and make construction periods shorter. A model of hollow reinforced concrete bridge columns was tested under a constant axial load and a quasi-static cyclically reversed horizontal load. As a result, proposed reinforcement details for material quantity reduction were equal to existing reinforcement details in terms of required performance. The companion paper presents the experimental and analytical study for the performance assessment of hollow reinforced concrete bridge column systems with reinforcement details for material quantity reduction.

• 대한산업공학회지
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• 제13권2호
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• pp.117-128
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• 1987

A major problem in the adoption of advanced manufacturing systems such as F.M.S. (Flexible Manufacturing Systems) is the prerequisite economic justification process because of high investment needed for the acquisition and installation of F.M.S. While some of the benefits expected are readily quantifiable, others are very difficult or even impossible, using conventional method. Thus the investment in F.M.S. should be considered as a strategic decision rather than a tactical decision which concerns with only financial implications. In this paper we review papers on major justification techniques developed during thelast decade and identify the benefits of F.M.S. and describe the considerations in the justification of F.M.S. Also, we deal with the current and future research directions in justifying F.M.S.

• 물과 미래
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• 제3권2호
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• pp.50-53
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• 1970

• 전기저널
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• 12호통권72호
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• pp.4-9
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• 1982

• 경영과정보연구
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• 제36권2호
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• pp.93-111
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• 2017

본 연구는 4차 산업혁명을 맞이하여 ICT기반 미래 신성장동력 산업의 경제적 파급효과를 알아보고, 이를 위한 신성장 동력의 성공요인은 무엇인지 분석하고자 하였다. 이를 위해, 기술보증기금에서 제시하는 기술평가모형 자료를 활용하였다. 구체적으로, ICT기반 신성장동력 산업의 경제적 효과를 경제성과 공공성으로 나누어 효과를 검증하고, 기술평가모형의 요인들 즉, CEO역량, 기술성, 사업성이 기업의 경제성 및 공공성에 미치는 영향을 조사하였다. 분석결과, 미래성장동력 산업에 해당하는 기업의 경제성 및 공공성에 대한 파급효과는 긍정적으로 나타났으며, 기업의 사업화 역량은 경제성과 공공성 효과를 증가시킬 성공요인으로 나타났다. 이러한 연구결과를 토대로 미래 신성장동력 산업의 기술혁신 산업정책의 관리 및 지원방안을 제시하고자 한다.

• 설비공학논문집
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• 제10권6호
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• pp.773-783
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• 1998

The heating system for apartment complex may be classified as old systems including central system with steam boiler(S1), gas engine driven heat pump system(S2), system using waste heat(S3) and new systems including mechanical vapor re-compression system with flashing heat exchangers(S4), system using methanol(S5), system using metal hydride (S6). The purpose of the present study is to suggest optimal heating system by technically, economically and environmentally evaluating old and new heating systems of apartment complex from 500 to 3,000 households. Economic evaluation based on the technical evaluation results which estimated heat transfer area of heat exchangers and capacity of equipments was estimated initial investment cost, annual operating cost and relative payback period by considering annual increasing rates of energy cost and interest. Environmental evaluation provided annual generation rate of carbon dioxide. Initial investment cost was cheap in the order of S6, S5, S3, S2, S4, S1, annual operating cost was cheap in the order of S1, S2, S4, S5 and relative payback period was short in the order of S6, S5, S2, S3 and S4. Relative payback period was within 8 years for all scenarios of 3,000 households, and was increased as annual increasing rates of energy cost and interest were increased. As transportation pipe length was increased twice, payback period was increased by 1.4~2.6 time. The effect of temperatures of waste gas and waste water on the relative payback period was small within 0.8 years. The annual generation rate of carbon dioxide was big in the order of S4, S2 and S1. S4 was the most economic system among whole scenarios when S1 was replaced with other scenarios.