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인지적 제조 시스템을 위한 공정 설계 전략-개념적 모형
김연민 울산대학교 1999 공학연구논문집 Vol.30 No.2
This study suggest conceptual models using experiential cognition, reflective cognition, and motivation variables and also develops propositions for empirical study by field observation. Job characteristic model for job design and recent cognitive engineering studies for process design are reviewed briefly. By using these concepts, lean production system was interpreted in terms of cognitive engineering and the latent dimensions of the lean production system are revealed as the application of cognitive engineering principles. Integrated process design framework for cognitive manufacturing system using job characteristic model is suggested for effective design of manufacturing system. Experiential cognition and reflective cognition make four possible modes of cognitive design-reactive mode, entrepreneurial mode, planning mode, adapting mode. Of which planning mode is regarded as the most important mode at the level of operator for manufacturing system design. By using dimensions of the task motivation potential and the experiential cognition, four process design strategies-machine resource centered process design strategy, human resource dependent process design strategy, machine resource dependent process design strategy, and human resource centered process design strategy-are suggested. In the complex and dynamic environment, human resource centered process design strategy is emphasized for effective manufacturing system. Propositions for empirical analysis of this model are also developed through theoretical analysis as well as field observation. Propositions are (1) experiential cognition and motivation potential affect the ability, role perception, and motivation of the operator in the manufacturing system (2) the ability, role perception, and motivation of the operator affect the manufacturing performance.
최연익,임한조,노영화 亞洲大學校 1986 論文集 Vol.9 No.-
Design programs which can be used for the fabrication of high-voltage power MOSFET's have been developed on HP-15C programmable calculator. Also, we proposed a method for finding optimum gate pitch with source pitch given after the specifications of the starting wafer and fabrication process were determined. The method was applied to the cases of using two kinds of epitaxially grown wafers and variations of on-resistance were studied in terms of source geometry, source pitch, gate-drain over-lap ratio, etc.
첨단제조기술의 타당성 평가를 위한 전문가 시스템의 개발
김연민 울산대학교 1993 공학연구논문집 Vol.24 No.1
본 연구는 첨단 제조기술의 평가를 위한 전문가 시스템을 INSIGHT 2 셀을 이용하여 개발하였다. 첨단 제조기술의 평가기법은 경제적 분석방법, 분석전 방법, 전략적 분석기법을 고려했으며, 실제로 점수법의 일종인 XVENTURE법을 이용, 첨단 제조기술의 도입 여부에 대한 평가를 하게 했다. In this study, expert system for the justification of advanced manufacturing technology was developed using Insight 2 shell. One of the justification approaches for advanced manufacturing technology, such as economic approach. analytic approach, and strategic approach could be selected in this expert system. Adoption of advanced manufacturing technology by xventure method was also protyped.
김연민 울산대학교 1999 공학연구논문집 Vol.30 No.2
This study reveals the process of technology innovation in teh automobile industry which needs an integrated innovation, and suggests means for technological innovation in capital good by the longitudinal analysis and the deep case study of production processes and facilities of an automobile factory. This paper analyzes the course of the process innovation, its motives, the direction of its development, and compares the past processes with the present processes of the Hyundai Motor Company. An interview was conducted for a concrete and vivid understanding of the development of the production processes and facilities using predesigned interview form. As a result, the investment of the facilities and state of the in-house development of facilities, and the problems of localization were also revealed. In Conclusion, propositions for the technology innovation of capital goods industry and the means for fostering the capital goods industry were suggested.
최연익 亞洲大學校 1984 論文集 Vol.7 No.-
A simulation program was developed to calculate electric potential and field in the reversebiased Schottky diode by quasi three-dimensional numerical analysis. Special features of this program are to deal with taper oxide structures and automatic generation of grid numbers for a reverse voltage given. Schottky diodes with the taper angle of 3˚to 90˚were successfully analyzed using this program.
정책 수용성의 시간적 변화 : 위도 방사성폐기물 처분장 입지 갈등 사례 Case of Wido
최연홍,오영민 한국정책학회 2004 韓國政策學會報 Vol.13 No.1
본 논문은 정책 수용성에 대한 연구로서 시간에 따른 지역 주민의 수용성 변화를 설명하고자 하는 목적으로 쓰여졌다. 수용성 변화를 설명하기 위하여 전북 부안군의 방사성 폐기물 처분장 입지 갈등 문제를 사례로 선정하였으며, 정책 발표 이전과 이후로 나누어서 이를 분석하였다. 지역 주민의 정책 수용도는 여러 가지 요인들에 의해서 영향을 받는데, 본 연구에서는 정책 요인, 정책과정 요인, 정책집행자 요인, 정책대상자 요인을 독립변수로 선정하여 정책 수용도와의 상관관계와 영향력 정도를 분석하였다. 사례 분석 결과, 지역 주민의 정책 수용도는 정책 발표 이후에 처분장 건설 정책이 진행되기가 더 이상 불가능할 정도로 하락하였는데, 그 이유로서 부안 주민의 수용 여부에 대한 판단기준이 변화되었기 때문이라는 결론이 도출되었다. 지역 주민은 정책 발표 이전에는 객관화된 타자의 입장에서 정책요인을 중요시하였으나, 정책이 발표된 이후에는 주관화된 내부인의 입장에서 처분장이 들어섬으로써 발생할 수 있는 위험과 생존권을 수용의 판단기준으로 삼았다. 그 결과 지역 주민의 태도는 정부 정책에 대한 무조건적인 반대와 폭력적인 양상으로 전환되었으며, 방사성 폐기물 처분장 건설정책은 다시금 표류하게 되었다. 따라서 문제 해결을 위한 정부의 대안은 지역 주민들의 생존권을 보장하고 위협을 감소시키는 방향으로 전환되어야 하며, 국민의 최종적인 합의를 도출해내기 위한 국회의 노력이 필요하다.
실리콘의 비등방성 부식공정에 대한 Computer Simulation
최연익,문일호 亞洲大學校 1989 論文集 Vol.12 No.-
A Simulation program for the U-groove etching of the silicon has developed on the Hewlett-Packard 9000 desktop computer. The etched patterns for the given rectangular mask patterns were successfully simulated by changing the misorientation angle and/or etch time. When comparing computer results with the experimental ones for the misorientation angles of 0˚,20˚,35.3˚,45˚,54.7˚,70˚,and 90˚or etch time of 10min.,20min. and 30min.,the former has shown good agreement with the latter.
성만영,최연익 亞洲大學校 1985 論文集 Vol.8 No.-
Optimum design of power MOSFET's has been studied for minimum ON resistance. With the breakdown voltage given, design curves were made to determine thickness and doping concentration of the epitaxial layer for minimum epi resistance. Sensitivity of epi resistance to epi resistivity were studied in practical sense. Concentration of the channel region was calculated for the threshold voltage and gate oxide thickness. From gate-drain overlap ratio at the minimum ON resistance, optimum dimension of s and a was obtained for linear and cell geometry, respectively. A power MOSFET with the breakdown voltage of 350V was designed successfully according to the above-mentioned design procedures.