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崔鍾珉 慶北大學校 經商大學 經濟學科 1986 慶商大學論集 Vol.14 No.-
Computer based information system have been increasingly important to contemporaty organizations. So, high performance information systems can do much to promulgate organizational success. This study focuses on two objects. It suggests a wrong of Mansour & Watson's(1980), and it implements the development of independent model which explains the effects of influence variables on the system performance. Mansour & Watson's(1980) article focuses on the findings of a large, cross-organizational study. Investigated was the impact that computer hardwase & software and behavioral, structural, and environmental variables have on information system performance. The problems of Mansour & Watson's(1980) are as follows, first, environmental variable has an indirect effect on the system performance, second, it must be considered that there is a definite relationship between organizational context variables and EDP departmental structure variables, third, there are some errors in selecting items measuring behavioral variables, fourth, computer hardware & software variables must be included in the EDP departmental structure variables, ◁(그림 삽입)▷ 원문을 참조하세요 fifth, there are some mistakes in measuring information system performance. My study implements the development of independent model considering like this problems. Mansour & Watson's model and my model are suggested as follows.
냉매 충전량과 팽창장치 변화에 따른 열펌프 시스템의 성능특성에 관한 연구
최종민,김용찬 대한설비공학회 2003 설비공학 논문집 Vol.15 No.8
Constant area expansion devices such as capillary tubes, short tube orifices are being gradually replaced with electronic expansion valves (EEVs) because of increasing focus on comfort and energy conservation. In this study, the performance of a water-to-water heat pump as a function of refrigerant charge is investigated in steady state, cooling mode operation with expansion devices of a capillary tube and an EEV. The performance of the capillary tube system varies drastically according to the change of refrigerant charge amount and inlet temperature of the secondary fluid in the condenser. Cooling capacity and COP of the EEV system show little dependence on the refrigerant charge, while those are strongly dependent on the secondary fluid temperature at the condenser inlet. In general, for a wide range of operating conditions the EEV system shows much higher performance as compared with the capillary tube system. The performance of the EEV system can be optimized by adjusting EEV opening to maintain a constant superheat at all test conditions.
최종민,장용희,김용찬 대한설비공학회 2003 설비공학 논문집 Vol.15 No.9
The performance of adiabatic capillary tubes are measured to provide the database for a generalized correlation. Test conditions and capillary tube geometries are selected to cover a wide range typically observed in air-conditioning and heat pump applications. Based on extensive experimental data for R22, R290, and R407C measured in this study, a generalized correlation for refrigerant flow rate in adiabatic capillary tubes is developed by implementing dimensionless parameters for tube inlet conditions, capillary tube geometry, and refrigerant properties. The correlation yields good agreement with the present data for R22, R290, and R407C with average and standard deviations of 0.9% and 5.0%, respectively. In addition, approximately 97% of the data for Rl2, R134a, R152a, R410A, and R600a obtained in the open literature are correlated within a relative deviation of $\pm$ 15%.
최종민 순천대학 새마을연구소 1989 새마을硏究論文集 Vol.5 No.-
The purpose of this study is to grasp the structural crisis of Korean agriculture, find out the real causes of the structural crisis. analyze the logic and the point at issue of agricultural policy in current stage, and draw the direction of agricultural policy in current stage. The major results of this study are as follows : 1. The productivity of Korean agriculture is stagnant and the relation of production is unstable. And so farm household economy become worse. Korean agriculture is just confronted with structural crisis. 2. The real causes of the structural crisis are the agricultural domination of monopolistic capital, the scattered possession and utilization of farmland, and the absence of agricultural policy. 3. Agricultural policy in current stage based on the logic of monopolistic capital is fabricated and far from peasant's interest. 4. It must be converted agricultural policy in current stage into protection and development policy for agriculture including the reformation of agricultural structure to cooperative management, the preparation for agricultural production foundations, and the price support for agricultural products.
經濟成長과 住宅地代에 관한 硏究 : 新古典學派的 接近 A Neo-Classical Approach
최종민,金智永 순천대학 새마을연구소 1988 새마을硏究論文集 Vol.4 No.-
The purpose of this study is first, to present a neo-classical model by which Aono Katsuhiro is developed and, second, to review the relationship between economic growth and housing rent. We attempt to provide a econometrical interpretation and a theoretical explanation for the influencing power of housing rent on economic growth. This neo-classical model will provide the conceptual framework for economic growth policy. Thus, we should understand that the rise of housing rent promotes economic growth.