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인터넷산업의 유료화를 통한 수익 창출 요인에 관한 실증적 연구
이동철(Min-Cheol Kim),김민철(Dong-Cheol Lee),강길봉(Gil-Bong Kang) 한국산업경영시스템학회 2004 한국산업경영시스템학회지 Vol.27 No.4
The purpose of this paper is to examine the empirical analysis for charging factors and the evaluation models of inter-net site Thus this is to analyze the revenue creation factors affecting the customer satisfaction of tourism information sites m the Internet Based on the regression model applied to a customer survey, this study shows that among the character-sitics of the site, tech1l1cal factor and community factor have the most significant effect on charging factor and customer satisfaction.
李東哲(Dong-Cheol Lee),裵乙錄(Ul-Lok Bae),金愚正(Woo-Jung Kim),閔炳雲(Bung-Yun Min) 대한전기학회 2007 전기학회논문지 P Vol.56 No.1
In this paper, design method for power tower hazard diagnosis/predition system based on UsN was proposed. The proposed method used multi-hybrid sensors to measure rotation, displacement, and inclination state of power tower, and made decision/prediction of hazard of power tower. System design was made with requirement analysis of monitoring for transmission power facility and use of MEMS and optic fiber sensors. For hazard decision, analysis of correlation was made using sensor output. LN based on IEC61850, international standard for digital substation, was also proposed. For transmission facility monitoring, digital substation and power tower were considered as parts of power facility networks.
이동철(Dong-cheol Lee),강민수(Min-soo Kang),김철수(Chul-soo Kim) 한국정보기술학회 2007 한국정보기술학회논문지 Vol.5 No.1
Teaching in college requires complex learning system which is based on the open and interactive teaching system, focusing on the learning consumers. Therefore, it is necessary to install a future-oriented and combined teaching system by using information technology. This study aims to link the supporting system enabling all kinds of communications necessary to classes between professors and students to be on-line with the existing academic and administrative DB. By developing an on-line and off-line complex learning system and producing basic materials for operation automatically, it will be convenient and easy for professors and students to use them.
CFD-FEA 연계 방법을 적용한 선박용 대형 디젤 엔진 온도 분포 해석에 관한 연구
김상한(Han-Sang Kim),민경덕(Kyoungdoug Min),이동호(Dong-Ho Lee),이동철(Dong-Cheol Lee) 한국자동차공학회 2005 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2005 No.11_1
Temperatures of engine head and liner depend on many factors such as spray and combustion process. coolant passage flow and engine related structures. To estimate the temperature distribution of engine structure, multi-dimensional computational fluid dynamics (CFD) codes have been mainly adopted. In this case. it is of great importance to obtain the realistic wall temperature distribution of entire engine structure. In the present work. a CFD-FEA coupling methodology was presented to address this demand. This approach was applied to real large-size marine diesel engine. CFD combustion and coolant flow simulations were coupled to FEM temperature analysis.<br/> Wall heat flux and wall temperature data were interfaced between combustion simulation and solid component temperature analysis via translator by FIRE. Heat transfer coefficient and surface temperature data were also exchanged and mapped between coolant flow simulation and FEM temperature analysis. It is expected that this coupling methodology is a robust tool for practical engine design applications and can be applied to further assessment of .temperature distribution of other engine components.
온톨로지 기술을 통한 의료 에이전트 시스템 활성화 고찰
김민철,이동철 濟州大學校 基礎科學硏究所 2003 基礎科學硏究 Vol.16 No.1
본 연구의 목적은 의료 웹 에이전트 시스템의 현재 연구 진행 현황을 고찰함과 동시에 이러한 에이전트 시스템의 활성화를 위한 시맨틱 웹의 온톨로지 적용을 제안하는데 있다. 특히 의료 정보 기술은 주로 환자보다는 의사의 편의성을 도모하는데 초점을 두고 발전되어 왔다. 이러한 상황을 보완하고자 하는 기술로 에이전트 시스템의 도입이 요구되어 온 것이다. 그러나 에이전트 간 또는 에이전트와 환자나 의사간 커뮤니케이션의 원활성 측면에서 여러 문제점에 봉착하게 되었다. 이러한 문제점을 해소하기 위한 방안으로 철학적 기초개념에서 발전되어온 온톨로지 기술이다. 본 연구에서는 의료서비스 특성상 환자와 의사간 정보비대칭의 현상이 어떻게 인터넷 기술에 의해 이러한 문제점을 해소할 수 있는지에 대한 방안을 모색하는 차원에서 이러한 연구가 진행된 현황을 살펴봄으로써 향후 연구 방향을 제시하고자 한다. The purpose of this study is to examine the influence of health service by information communication technology. Especially, Focusing on Internet technology, this paper reviewed what possible influence by Internet can be made to relationships between physician and patient. Finally, information inequality between producer (physician) and consumer (patient) in health care service will be decreased through the introduction of agent technology and ontology. Thus, this paper reviewed and proposed the importance of agent research by ontology introduction in the healthcare service.