• 한국시스템다이내믹스연구
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• 제11권3호
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• pp.61-86
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• 2010

This research analyzed on the future energy society of Korea in 2030 using system thinking approach. Key uncertainty factors determining the future energy society were analyzed in a multi disciplinary view point such as politics, economy, society, ecology and technology. Three causal loop diagrams for the future energy system in Korea and related policy leverages were shown as well. 'Global economic trends', 'change of industrial structure' and 'energy price' were identified as key uncertainty factors determining the Korean energy future. Three causal loop diagrams named as 'rate of energy self－sufficiency and alternative energy production', 'economic activity and energy demand' and 'Excavation of new growth engines' were developed. We integrated those causal loop diagrams into one to understand the entire energy system of the future, proposed three strategic scenarios(optimistic, pessimistic and most likely) and discussed implications and limits of this research.

• 대한가정학회지
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• 제36권12호
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• pp.115-127
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• 1998

The purpose of this study intended to fully understand from the point of view of the elderly parent's satisfaction in the living to adult children. The subject of this study was elderly parent's over 55 years old whom live in Iksan. The sample was composed of 146 cases. The data were analyzed using SPSS statistic program. The major findings were as follows : 1) The effective indicator was related economic parts ; earns, the cost of living, educational background, sex, affection. 2) The affection related between elderly parent's and adult children was found to be high and the conflict between them was found to be low. 3) The economic interchange between elderly parent's and their adult children was influenced by religion, cohabitance with adult children. The effective indicator was conflict and dependent emotions. The serviced interchanges was influenced by spouse, sex, earns.

• 대한전기학회논문지:전력기술부문A
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• 제55권10호
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• pp.418-425
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• 2006

This paper describes a simulation package for a power system using objected-oriented programming. The package includes four parts which are a power flow, a short circuit calculation, a transient simulation program, and an economic dispatch. The graphical user interface(GUI) is designed as a common platform which allows the user to create one-line diagrams of systems, specify components of power systems as well as simulation parameters, and view the output produced by the chosen application. The paper presents the data structure of the functional modules such as the draw module, power system data module, the power system simulation module, and the utility module using the object oriented programming. This package may be useful for educational and research purposes.

• 대한전기학회논문지:전력기술부문A
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• 제48권7호
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• pp.872-880
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• 1999

This paper presents an algorithm that can calculate the evaluation index of power system from the transfer capability point of view. The algorithm adopts a successive linear programming skill to solve an optimal solution. Two indices which are transfer margin index and economic matching index have been developed. Prior to calculating these indices, Maximum Load supplying Capability(MLSC) and Economic Load Supplying Capability(ELSC) are utilized as basic data. For man-machine interface, graphical user interface has been implemented so that an unified software package PSTCP(Power System Transfer Capability Program) has been developed. KEPCO systems planned up to 2006 year have been tested to show effectiveness and usefulness of the PSTCP for power system planning stages.

• 한국항만경제학회지
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• 제18권1호
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• pp.159-186
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• 2002

As the competition among ports emphasizes container cargo nowadays, it is essential for Incheon Port to respond wisely to the trend. But the timely establishment of basic logistics infra for the attraction of container cargo is delayed in comparison with rival ports; marketing activity is also depressed. Furthermore the understanding and the effort for the marketing of the institutions and businesses concerned with Incheon Port are less than sufficient. The marketing research for customers who are the basis and axis of marketing activities is almost wholly lacking. Things investigated by rival ports and external research institutions differ much in statistic according to the persons who cite them. As the study of port marketing is very theoretical and general, its application to reality is so much restricted. Therefore, this thesis considers ways for the main group of marketing to think and behave, from the viewpoint of shipping agents and the owners of cargo - the practical using group of Incheon Port. This thesis aims to deliver the systematic information and consistent view concerned with marketing.

• Nuclear Engineering and Technology
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• 제45권5호
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• pp.665-674
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• 2013

This paper presents the development and validation methods of the FUTURE (FUel cycle analysis Tool for nUcleaR Energy) code, which was developed for a dynamic material flow evaluation and economic analysis of the nuclear fuel cycle. This code enables an evaluation of a nuclear material flow and its economy for diverse nuclear fuel cycles based on a predictable scenario. The most notable virtue of this FUTURE code, which was developed using C# and MICROSOFT SQL DBMS, is that a program user can design a nuclear fuel cycle process easily using a standard process on the canvas screen through a drag-and-drop method. From the user's point of view, this code is very easy to use thanks to its high flexibility. In addition, the new code also enables the maintenance of data integrity by constructing a database environment of the results of the nuclear fuel cycle analyses.

• 산업경영시스템학회지
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• 제13권21호
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• pp.73-79
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• 1990

The quality and cost of manufacturing products is a significant problem in view of duality assurance, but the quality level of the incoming materials is not considered to determine in the economic order quantity of conservative inventory model. A typical situation we face is the difference of quantity between order quantity and the determined outgoing quantity after acceptance inspection. In this paper we present a procedure to reduce the difference of order(ingoing) quantity and outgoing quantity of incoming materials a method of justifying the acceptance plans whether accept or not by comparing with ingoing outgoing quality.

• 한국주거학회논문집
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• 제18권4호
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• pp.89-96
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• 2007

This study was intended to examine the change in the perception of the professionals for the environment-friendly apartments. After result of implementing the question survey against the professionals two times, the degree of importance in the environment-friendly design elements didn't show any significant change. However, it showed the degree of maturity on the concept of environment-friendly development is widely spreaded in terms of social, economic and environmental aspects. Based on the description of such results, the conclusion can be deduced as follow; 1) Presumably it would require 5 years for the diffusion of the concept of environment-friendly apartments and 10 years for the construction of developing its materialization and settlement respectively, 2) The proper density would be designed in $150{\sim}200%$ in view of the environmental and economic aspects. 3) It is necessary to change the existing system into the District Unit oriented planning & design method in order to apply the environmental design elements in smooth manner.

• 농촌지도와개발
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• 제23권2호
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• pp.115-122
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• 2016

For 20 years, Japanese government have been pushed forward supporting policy measures for youths who wanted to start farming. These measures made up a systematized scheme and brought out some effects. In this paper, those scheme are introduced and analyzed. Those are composed of several measeurs as following: vocational edcucation and training, internship program, direct payment for livelihood, and governmental subsidies for investment. Japanese scheme can be evaluated as a good policy in the view of Korean situation. There is no systematic policy program for youth's entrance to farming in Korea.

• 산업경영시스템학회지
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• 제24권62호
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• pp.33-48
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• 2001

International transfer of technology is not a simple mechanical progress obtaining technology from overseas, but a sysmetic progress for advancing ability of domestic research development through technology, men of talent, advanced management and its experience. In this progress, it is a important yardstick measuring a country's standard of technology & productivity and self-reliance of industrialization whether countries have introduced some technologies or settled them somehow or not. Through these views, this paper is dealing in major features on each stage in connection with economic system's change, strategy of economic development and industrialization of China regarding transfer technology in China extended during five decades after war.