정보종속과 정보개발의 상관관계 : 한국을 Case로 하여

이제환 한국문헌정보학회 1994 한국문헌정보학회지 Vol.27 No.-

The main objective of this article lies in discussing dependency issues as related to information development in NICs. The theoretical foundation was drawn from theories of "dependency" and of "information societies." The main assertion of the dependency school (the more dependency, the less development) was applied for a test of the relationship between dependency on foreign scientific and technical information (STI) resources and indigenous STI development in NICs, Utilizing a case study method, this study explored the causes and results of dependency on foreign STI in a leading NIC - the Republic of Korea (ROK). First identified were the economic factors that might have influenced the ROK's dependency on foreign STI, Also investigated were the social factors that might have had associations with the R&D personnel's dependency on foreign STI. Regarding the development of information area, this study discussed general features in the process of producing, organizing, and gatekeeping indigenous STI.Identified regarding the ROK's information dependency was the R&D personnel's pattern of using foreign STI resources as well as the country's dependency on foreign STI resources. This study also discussed the socio-economic progress toward an information society in ROK for the past decades. Finally, specific linkages between the selected five variables were examined on the basis of the proposed four hypotheses

중장년층에서의 외상성 견관절 탈구

이광원,류창수,김하용,안재훈,염진섭,김환정,최원식 대한견.주관절학회 2000 大韓肩.주關節學會誌 Vol.3 No.2

재일한인의 정보행태에 관한 연구

이제환,이연옥 釜山大學校 韓國民族文化硏究所 2005 한국민족문화 Vol.26 No.-

This study intends to investigate the everyday information behavior of Korean residents in Japan. Employing survey and interviews methods, it attempts to illustrate some features in their everyday information need and seeking pattern, to scrutinize major factors influencing their information seeking behavior, and to find out the differences in information behavior among various sub-groups of the Korean Communtiy. In details, the discussion includes (1) the types and characteristics of their everyday concerns and agony, (2) the attitudes and methods to meet with such concerns and agony, (3) the types and characteristics of information sources which they prefer to satisfy with their information needs, (4) the factors which have impacts on their information needs and seeking behavior, and finally (5) the usefulness of major organizations and information media in the Korean Society as everyday information sources.

과학기술분야 서지 DB의 품질관리 및 평가 방안 : KORDIC의 KRISTAL DB를 중심으로

이제환 한국문헌정보학회 1997 한국문헌정보학회지 Vol.31 No.1

이 연구는 국내 과학기술계에서 구축하고 있는 서지 DB의 품질 문제를 다루고 있다. 구체적으로, 과학기술분야의 중추적인 정보유통기관인 KORDIC이 1990년대 초부터 구축해 오고 있는 KRISTAL DB 중에서 핵심이라 할 수 있는 UNION DB와 SATURN DB를 선정하여 그 품질을 평가하고 개선방안을 제시한다. 특히, UNION DB와 SATURN DB의 품질 평가를 위한 접근 방식에서, 기존의 시스템개발자 중심의 논리를 배격하고 이용자 중심의 평가 기준을 제시함으로써 '정보시스템의 설계 및 평가'에 있어서 이용자의 중요성을 강조한다 This study discusses the quality issue of large scientific and technical (S&T) bibliographic databases in South Korea. In details, this study develops the criteria to evaluate the quality of S&T bibliographic databases, evaluates the quality of the selected two databases - UNION DB and SATURN DB of the KORDIC, and finally, suggests both organizational and technical methods for the quality improvement of such bibliographic databases

근저항 트레이닝이 20대 여성의 신체조성과 체력에 미치는 영향

이상우,김봉환,서해근,강신범,나재철 대한스포츠의학회 1999 대한스포츠의학회지 Vol.17 No.1

The purpose of this study was to investigate the effect of muscular resistance training on the body composition and the physical fitness. The subjects of study were 6 women in their twenties who had not taken will in ordinary days and had not gone through regular training. The above subjects were measured by body composition and physical fitness pre and post 8 weeks training. The frequence training was more than 4 times a week and the duration of training of each session was 70 miniutes. The results are as fallows: 1. In muscular resistance training for 8 weeks, % Fat 1.8%(7.76%), and Fat weigh 3.0kg(23.43%), wee decreased, while LBM 3.0kg(7.10%) was increased, However, there was no differences. 2. In muscular resistance training for 8 weeks, it was exposed to be increased a little in Left arm strength 2.65kg(9.60%), Fight arm strength 2.03kg(7.78%), Left leg extention strength 12.47kg(6.16%), Right leg extention strength 4.50kg(2.35%), Left leg flextion strength 13.67kg(13.01%), Right leg flextion strength 13.25kg(12.70%), Standing trunk flextion 3.25㎝(18.16%), Front split 2.67㎝(1.65%), Side step 3.83friq(11.16%), Vital capacity 5.02cc(0.22%).

日常的 苦悶을 통해 본 在日韓人의 삶 : from the Perspectives of Their Everyday Life

이제환,정수원,송정숙 釜山大學校 韓國民族文化硏究所 2004 한국민족문화 Vol.23 No.-

This article investigates both life and agony of Korean residents in Japan from the perspectives of their every life. The discussion begins with exploring the history and various definitions of 'Korean residents in Japan.' Followed is an introduction io their present legal status and situation as 'permanent foreign residents' in Japan. Then this article identifies the types of ordinary agony that Korean residents in Japan have been always facing with. To this end, the types of agony is classified as two groups, namely, survival agony and environmental agony. The first group includes the mental anguish that are related with the 'limited' use of Korean names, racial discrimination in housing, employment, and business. And the second includes the mental anguish resulting from child education, marriage, naturalization, and suffrage rights. Then this article investigates how Korean residents in Japan are coping with the various agony, most of which are caused by the racial discrimination policy of Japanese society. An interesting but melancholy finding from this investigation is the Korean residents' passive and negative mind and attitude in solving such agony. They are dealing with their agony as a personal matter, not as a common issue that the entire Korean ethnic community should meet and overcome. The examples demonstrating such mind and attitude are provided through the interviews that were conducted with major figures in the Korean community. Finally emphasizing the need for establishing information systems or organizations that could activate the interactive communication among Korean residents, this article suggests the korean community s various organizations and institutions should play more active and positive role in order to promote daily communication among the Korean residents in Japan.

R&D 정보시스템 구축을 위한 시스템연구 : 한전 전력연구원을 사례로 하여

이제환 한국문헌정보학회 1997 한국문헌정보학회지 Vol.31 No.2

이 연구는 한국전력주식회사의 전력연구원을 사례로 하여, R&D 기관이 정보시스템을 구축하고자 할 때 고려해야할 정보환경적 요소들을 분석한 후, 파악된 정보환경적 요소들이 효율적인 R&D 정보시스템 구축을 위해 구체적으로 어떻게 반영되어야 하는지를 시스템연구 방법을 이용하여 논의한다 This study analyzes the information environmental factors which should be considered for the design of a R & D information system, with an example of the Korea Electronic Power Research Institute (KEPRI). Utilizing a system study method, this study suggests how the information environmental factors should be reflected into the design of the R & D information system

자기베어링 런아웃의 적응제어

김재실,배철용,이재환,안대균,최헌오 창원대학교 산업기술연구소 2001 産技硏論文集 Vol.15 No.-

자기베어링의 회전정밀도에 영향을 미치는 인자로 PWM 전력증폭기, 위치 센서 등과 같은 자기베어링 구성 장치의 동특성 및 정밀도, 시스템의 정확한 모델링, 제어기법, 런아웃 등이 있다. 본 연구에서는 능동 자기베어링을 제어하기 위해 자기베어링의 PWM 전력증폭기와 회전축을 모델링하고 이를 바탕으로 능동 자기베어링 제어를 위한 PID 제어기를 구성하였으며, 변위 센서의 부착위치 및 회전축의 진원도의 영향으로 발생하는 주기적인 런아웃 요소를 첨가하여 런아웃의 영향을 확인하였으며, 런아웃(Runout)에 의해 발생하는 에러(Error)를 효과적으로 제어하여 자기베어링의 제어 정밀도를 향상시키기 위한 방법으로 기본적인 PID 제어기에 최소평균자승(Least Mean Square, LMS) 알고리즘을 적용한 적응 피드포워드 제어기를 구성하여 자기베어링의 능동 제어에서 발생하는 주기적인 런아웃을 효과적으로 제어할 수 있음을 MATLAB을 통한 시뮬레이션을 통해 확인하였다.

能動 振動制御 半徑方向 磁氣베어링의 强性에 관한 硏究

김재실,안승국,이재환,안대균,최헌오 창원대학교 산업기술연구소 2001 産技硏論文集 Vol.15 No.-

This article describes (1) 2 and 3 dimensional electromagnetic finite element models for an active heteropolar radial magnetic bearing, (2) the procedure for obtaining the bearing stiffnesses by simulating the models and (3) the reviews of the models by comparing an experimental test to the ideal closed loop analysis with the stiffnesses calculated from(2). The 3 dimensional model for the magnetic bearing may be very effectively applied to several types of magnetic bearings.

성인의 Monteggia 골절에서 기능적 결과에 영향을 미치는 인자

이광원,김하용,이병기,김환정,최원식,박용범,안재훈 대한골절학회 2000 대한골절학회지 Vol.13 No.3

Purpose: Monteggia fracture is a combination of ulnar fracture and radial head dislocation. Despite of low incidence, Monteggia fracture has a problem in the treatment. So satisfactory results could not be achieved easily. The purpose of this study was to analyze factors affecting functional results in Monteggia fracture. Materials and Methods: From January 1990 to June 1998, we retrospectively reviewed 24 patients out of 40 patients who had been treated for Monteggia fracture. The functional assessment was performed with Broberg and Morrey system10). Results: Excellent and good results were achieved in 16 cases(66.6%), whereas fair and poor results in 8 cases(33.4%). Satisfactory results were obtained in 66.6% overall. According to the Bado classification, functional results were not different significantly between types. According to the mechanisms of injury, unsatisfactory results were obtained in 8 of 17 patients with high energy injury. Monteggia fractures with ulnar fracture at the diaphyseal level showed satisfactory results significantly compared to others. In terms of the methods of internal fixation, the plate and screw fixation showed satisfactory results in 14 of 16 patients whereas tension band wiring or intramedullary nailing showed unsatisfactory results in 6 of 8 patients. Conclusion: In Monteggia fractures, factors affecting functional result may be the mechanism of injury, the level of ulnar fracture and the method of internal fixation.