Quality Adaptation을 위한 분산 프록시 모델

윤수미(Yoon Soo Mi),김상철(Kim Sang Cheul) 한국정보과학회 2001 한국정보과학회 학술발표논문집 Vol.28 No.2Ⅲ

프록시 서버는 점차 다양해지고 있는 클라이언트의 이질성(heteroginiety)과 이에 따른 서버와 네트워크의 과부하를 해결하기 위한 방법으로 제시되고 있다. 본 연구에서는 분산된 프록시 서버 환경에서 주어진 프록시들의 부하 균형을 위하여 각 비디오 객체의 계층(layer)들을 서로 다른 프록시에 분리하여 저장하였다가 필요시 전송함으로서 네트워크 환경에서 특정 프록시 서버로의 집중과 혼잡성을 줄이도록 한다. 이로서 적응적인 화질(Quality Adaptation)을 보장하기 위한 계층적 코딩(layered coding) 스트리밍 서비스를 보다 효율적으로 제공할 수 있다.

Thermal pulse를 이용한 반도체 소자의 thermal impedance 측정법

서길수(Kil-Soo Seo),김기현(Kihyun Kim),방욱(Wook Bahng),김상철(Sang-Cheul Kim),김남균(Nam-Kyun Kim),김은동(Eun-dong Kim) 대한전기학회 2005 대한전기학회 학술대회 논문집 Vol.2005 No.7

대기전력소비행태 조사 및 분석

서길수(Kil-Soo Seo),김형우(Heyng-Woo Kim),송근호(Geun-Ho Song),방욱(Wook Bahng),김상철(Sang-cheul Kim),김남균(Nam-Keun Kim),김은동(Eun-Dong Kim) 대한전기학회 2003 대한전기학회 학술대회 논문집 Vol.2003 No.7

산업효율성 측정기법에 관한 고찰

김상철 한국생산성학회 1987 生産性論集 Vol.1 No.1

The purpose of this study is to provide a techniques of productive efficiency and is confined to the estimation of a cost function and production function. For the estimate of the attainable ideal standards, the concept of frontier cost function and translog cost function is to be reviewed first of all reviewed frontier production function and is to be the study is attempted to expand the models for analysis of cost behaviour based on a multiple regression model and a linear programming model. It is formulated to estimate the frontier cost function which reflects the best operation possible in the system, which the multiple regression model yield the $quot;average$quot; cost function during a time period throughout the units, the frontier cost function be used to yield the $quot;target$quot; cost which is accomplishable under the given conditions in the system. In order to continue this study, we should find performance variable and influencing factors of firm performance efficiency and time performance efficiency if we are able to find the performance variables, from the analysis, we can achieve the good theory to find the efficiency variables.

韓國 電子産業의 品質管理에 관한 考察

金相哲 배화여자대학 1983 培花論叢 Vol.2 No.-

1. The purpose of the study The Korean electronic industry has played a major role since its introduction in the industrial modernization of our Country. It has been leading the exporting industry of this Country. Therefore it makes it necessary for us to re-evaluate the fundamental structure of the korean electronic industry in order to compete in the international market. It is necemary for us to develop and stress new technical and managerial skills and renew a promtion on quality control. Quality control consciousness has in creased greatly due to improvement of operatinal facilities. The expansion of quality test facilities the intensification of educafional training on quality Control for the emploees but at present it cannot equal the quality of advanced nation due to their prolonged use of quality control measures. The author of this thesis attempted to establish the hypothesis that problems which encompars the nationality of the korean quality control system now practisled by the korean electronic manufacturs. There in lies such factors as lack of capital and skill, lack of top managers understanding on quality control, disputes with in the organization of the korean electronic industry, poor motivation of employees etc. It has been attemped to further explore the hypothesis to examine the probloms of quality control and to suggest and recommend practical methods for economic and scientific introduction of quality cotral measures in the Korean electronic industry. 2. The method of the study A questionaire was fabricated to facilitate a survey through interviews with manager at company level for a specific care study and analysis of findigs from the survey reflected present conditions prevailing throughout the Korean electronic industry. 3. The Corntent of the thesis This research is consist of four chapters. Chapter l introduced the purpose, procedure, and scope of research. Chapter 2. is set forth a theoretical background of quality control's application in electronic industry. Chapter 3 explained the precent state of the quality control in electronic industry, and analyzed the actual proof method of the actual condition's analysis of the quality control in the manufacturing plant, and proposed the problem field of the quality control and its improvable course. Chapter 4 Summarized the conclusion.

綿紡績工業의 品質管理에 관한 實驗的 硏究 : P 工場을 中心으로

金相哲 圓光大學校大學院 1981 學位論叢 Vol.7 No.-

1. The purpose of the study The cotton spinning industry has played a majorrole since its introduction in the industrial modernization of our country. The cotton spinning industry was the first to introduce modern factory system and at the same time it has been leading the exporting industry of this country. However the cotton spinning industry of today is being drastically replaced by synthetic spinning. Therefore with such international market trends, it makes it necessary for us to re-evaluate the fundamental structure of the Korean cotton spinning industry in order to compete in the international market. It is necessary for us to develop and stress new technical and managerial skills and renew a promotion on quality control. Quality control consciousness has increased greatly due to improvement of operational facilities. The expansion of quality test facilities the intensification of educational training on quality control for the emploees but at present it cannot equal the quality of advanced nations due to the prolonged use of quality control measures. The author of this thesis attemped to establish the hypothesis that problems which encompass the nationality of the Korean quality control system now practised by the Korean cotton spinning manufacture, There in lies such factors as lack of capital and skill, lack of top managers understanding on quality control, disputes with in the organization of the Korean cotton spinning industry, poor motivation of employees etc. It has been attemped to further explore the hypothesis to examine the problems of quality control and to suggest and recommend practical methods for economic and scientific introduction of quality control measures in the Korean cotten spining industry. Those recommendations are made as contributions for the betterment and advancement of our industry to afford us the opportunity to compete within the international market. 2. The method of the study Academic theories on scientific system of quality control were exerciped by the author to determine the problems of quality control as practical today by the manufacturs of spinning. A questionaire was fabricated to facilitate a survey through interviews with manage at company level for a specific care study and analysis of findings from the survey reflected present conditions prevailing throughout the korean cotton spinning industry. 3. The content of the thesis 1) Introduction 2) The significiance and nature of quality control 3) The status and reality of the quality controlin the spinning industry 4) An analysis of the status of the quality control in a care company 5) The problems on quality control within the cotton spinning industry 6) Recommendations for the quality improvement for the korean cotton spinning industry 7) Conclusion

단체법의 퇴화에 관한 연구

김상철 목원대학교 사회과학연구소 1999 社會科學硏究 Vol.- No.3

본 논문은 L.P.(선형계획법)의 해법중 Simplex Method에서 발생되는 퇴화현상의 명확한 정의와 그 해법(섭동법)에 관한 수학적 배경을 해석·조명해 봄으로써, 전산해의 가능성을 보여주고 있으며 쌍대 퇴화모형이 역시 순환하는 지의 검정은 앞으로의 과제라 할 수 있다.