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김선욱,김봉진,Kim, Sun-Uk,Gim, Bong-Jin 대한산업공학회 1998 산업공학 Vol.11 No.2
As mentioned in Part I all groupware products have been categorized into three areas which include cooperation/document management systems(CMS), collaborative writing systems(CWS), and decision-making/meeting system(DMS). This study deals with a comparative analysis of the last two areas, which is added to the first. It turns out that DMS has a higher market share than CWS. However. since effective collaboration requires the functions inherent to these two systems. they should be integrated somehow. The systems' functions that have been implemented in response to design issues have been described. Each group of the functions has been divided into three parts which consist of basic function, quasi-basic function. and others. Such a decision has been made according to the frequency rate of the functions provided in the products. While the basic functions in CWS include collaboraive writing beyond restriction of time and place, group awareness. version control. and others, in DMS realtime collaboration. brainstorming. presentation. various task support. policy formation. document management, multimedia, subgroup communication. topic commenter, categorizer, screen capture and various rile transfer. The basic functions are merged into the integrated functional model which was proposed in Part I. Since the model is so flexible that it can partially include the quasi-functions in addition to the hasic functions. a large number of products may stem from the modification of the functional model.
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양문희(Yang, Moon-Hee),김봉진(Gim, Bong-Jin),김종욱(Kim, Jong-Wook) 한국신재생에너지학회 2005 신재생에너지 Vol.1 No.3
This paper deals with the economic feasibility model and analysis of a hydrogen fuel-cell vehicle [FCV] against two similar types of non-business vehicles fueled with gasoline [GV] and diesel [DV] considering greenhouse gas [GHG]. Considering the price of vehicles and annual operating cost, we build a classical economic feasibility model. Since the economic feasibility could be affected by many input factors such as the prices of vehicles, the price of fuels, annual driving distance and so on, we estimate the average future values of input factors, which is defined as the average case. Based on the average case, we assess the representative economic feasibility of a FCV with/without GHG, and by changing various annual driving distances, we assess its economy in terms of net-present value, internal rate of return, and payback period. In addition, we make some sensitivity analysis of its economic feasibility by changing the values of the critical input factors one at time. Based on the average case, it turns out that the consumer of a FCV could save 25,000 won/year for a GV, but the consumer could pay 120,000 won/year more for a DV. This indicates that gasoline vehicles could be replaced gradually by FCVs in Korean market which might be formed by those consumers driving annually more than approximately 14,800 km. As the results of our sensitivity analysis, it turns out that a FCV is no more economical if the difference of the prices between FCV and GV is more than 10,130,000 won or the price of hydrogen fuel could be more than 5,136 won/kg.
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하수 슬러지 폐열원을 이용한 재생 에너지의 경제성 평가
이종호(Jong Ho Lee),박승상(Shung Sang Park),백종현(Jong Hyeon Peck),이수양(Soo Yang Lee),김봉진(Bong Jin Gim) 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.10
In this study, economic evaluation of the waste heat recovery system combined with heat exchanger and the high temperature heat pump was suggested and investigated. It was designed that the system used the heat of wastewater from sludge-drying process. Based on the annual heat production of the system, bunker-C oil boiler and LNG boiler of the same capacity are compared, respectively. As a result, when the system operates for 15 years, payback period of this system predicts about 2.6~3.2 years in bunker-C oil boiler and about 2.7~3.4 years in LNG boiler, respectively.
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A Micro-Computer Based Optimization System for Balas 0-1 Programming Problem
Gim, Bong-jin 단국대학교 1989 論文集 Vol.23 No.-
마이크로 컴퓨터를 이용한 0-1 정수계획법의 최적화체제에 관한 연구를 하였다. 0-1 정수계획법과 같은 이산최적화 알고리즘은 자료구조에 크게 의존하기 때문에 대부분의 엔지니어들이 직접 프로그램을 작성하기에는 어려운 점이 많다. 그러므로, 0-1 정수계획법과 같은 이산최적화 문제를 쉽게 프로그램화할 수 있도록 대수적이며, 컴퓨터언어에 근거한 입력체제를 개발하였다. 위와 같은 입력체제의 원리는 혼합정수 계획법과 같은 일반적인 이산최적화 문제에도 큰 수정없이 적용될 수있으리라 생각된다.
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이덕기,박수억,양종택,김봉진 한국환경경제학회 한국자원경제학회 2003 자원·환경경제연구 Vol.12 No.4
본 연구는 R&DDD(Research & Development, Demonstration, Dissemination: R&D^3)로 구성되는 연구개발과정의 마지막 단계인 확산단계에 관한 내용을 다루고 있다. 확산단계(Dissemination Stage)에서는 개발된 기술과 다른 대안들과의 비교 평가가 이루어지고 최종적으로 가장 바람직한 방안이 선정되게 된다. 이 단계에서 이루어지는 기술대안에 대한 평가는 단순한 과정이 아니고, 기술적 특성뿐만 아니라 경제적 효과 등 여러 가지 요소들이 고려되어야 하는 복합적인 평가과정을 거치게 된다. 이는 오늘날 산업계 각 분야에서 바람직한 기술대안의 평가, 선정, 적용이 기업의 경쟁우위에 지대한 영향을 미치며 나아가 기업의 생존 및 성장을 좌우하기 때문이다. 본 연구에서는 열공급시스템의 기술적 대안에 대한 AHP방법을 고찰하고, 이 방법의 실무적 적용가능성을 검토하기 위해 에너지기술분야에서 폐열 활용시스템 대안들에 대한 평가에 적용한 결과를 보여주고 있다. This study deals with the "Dissemination Stage", the final step in the R&D process consisting of R&DDD(R&D^(3) : Research & Development, Demonstration, Dissemination). At the "Dissemination Stage", the newly configured technical design is compared with other alternatives to come up with the most desirable selection. The assessment conducted at this stage is not a simple procedure. It goes through the complex evaluation process in which various elements including economic effects and technical characteristics are considered. The reason for taking such a complex procedure is that the assessment, selection and application of the desirable technical alternative is critical for the company's competitive edge in every field of industrial sectors, thus influencing its survival and continuous growth. This study reviews the AHP method for assessing technical alternatives of the heat supply system design. And, to show the practical validity of the AHP method, it is applied to the evaluation of waste heat system alternatives in the field of energy supply sγstem technology.
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