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Precast Concrete Panel을 사용한 슬라브궤도 시험시공에 대한 평가
김순철(Kim Soon-Cheol),공선용(Kong Sun-Yong),강정옥(Kang Jeong-Ok),이종민(Lee Jong-Min),한광섭(Han Kwang-Seob) 한국철도학회 2004 한국철도학회 학술발표대회논문집 Vol.- No.-
This paper is presenting the performance evaluation on the installed concrete panels. As a result of the evaluation, the resistance to track displacement of temporary support structure was improved and it resulted in the improvement of work stability during installation. And, by the application of new technology and the saving of concrete consumption, both workability and cost were improved and, therefore, the shorter project period and cost saving can be expected. Furthermore, as a result of noise & vibration measurement at site, it has shown good effects of anti-noise and anti-vibration. In conclusion, this process was proved as very effective for track improvement.
박정근(Park Jeung-Geun),김순철(Kim Sun-Cheol),한종문(Han Jong-Mon) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-
The ERS(Embedded Rail Track system) is constructed in the world due to a slab track system having maintenance free, high structural safety, and deduction of noise and vibration. The ADRI-ERS is developed as Korean type. This paper shows that the design of ADRI-ERS and experiments according to DIN EN 13481-5 and Korea high speed train test guidelines. The ADRI-ERS has high structural safety in pull-out test, longitudinal resistance test, and fatigue test. The design method of ADRI-ERS is proposed by two design constants due to the result of experiments also.
김연성(Youn Sung Kim),유홍성(Hong Sung Yoo),김순철(Sun Cheol Kim) 한국경영과학회 2015 한국경영과학회지 Vol.40 No.1
This study drew performance management factors analyzed a causal link between acceptance and satisfaction of performance management to present the method for promoting acceptance on the performance management system that most of the public enterprises, government-affiliated organizations are implementing. To achieve this, qualitative analysis and quantitative analysis were conducted in parallel through in-depth case studies and surveys. The results of this study are as follows. First, the analysis of the performance management factors with preceding studies shows that performance management indicators, performance management operations and performance management communications. Second, from the causal relationship of performance management factors affecting performance management acceptance reveals that performance management operation has statistical significance. Third, the analysis of the effect of performance management factors on the management satisfaction shows that operation and indicator of the performance management have statistical significance and reflecting the performance indicators to business, adequacy of target level, training, system support and CEO’s Leadership have been revealed as important variables to the management satisfaction. Fourth, the result of the analysis on casual connection between acceptance and satisfaction of the performance management shows that improving management acceptance has a direct impact on satisfaction because performance management receptiveness were deemed statistically significant. Fifth, the result of the in-depth case studies on improving performance management acceptance shows that public enterprises have been putting in an effort to design indicators and try to encourage internal member"s involvement during the monitoring and evaluation. The quantitative analysis based on survey has turned out that performance management operation and performance management indicators have statistical significance. The qualitative analysis by in-depth analysis shows that public enterprises put a lot of effort to performance management indicators and communication between internal members. As a result, commitment to performance management operation is required to improve the performance management acceptance. In other words, a detailed implementation plan for training, information system support, and CEO"s leadership has to be established and ought to be pushed.
전자상거래에서 제품 정보 추천을 위한 멀티 에이전트 시스템의 워크플로우 구축
김종완,김영순,이승아,진승훈,권영직,김순철,Kim, Jong-Wan,Kim, Yeong-Sun,Lee, Seung-A,Jin, Seung-Hoon,Kwon, Young-Jik,Kim, Sun-Cheol 한국정보처리학회 2001 정보처리학회논문지B Vol.8 No.6
전자상거래가 활성화됨에 따라 제공되는 상품의 정보와 서비스의 내용이 점차 다양해지고 있다. 따라서 구매자들은 가격 정보뿐만 아니라 다양한 상품 정보들을 검색 추천해주는 에이전트 개발을 요구하고 있다. 본 논문에서는 전자상거래에서 도서 정보 검색과 관련하여 사용자의 선호도를 프로파일 형태로 표현하고, 도서 정보를 검색 및 추출하고 이를 추천하는 멀티 에이전트 시스템을 제안한다. 제안된 멀티 에이전트 시스템은 정보검색, 정보추천, 사용자 인터페이스, 웹 로봇과 같은 여러 개별 에이전트들의 동작들을 조정 에이전트의 설계 및 구현을 통하여 통제하고 관리한다. 본 멀티 에이전트 시스템을 윈도우즈 NT 서버에 구현하였다. 조정 에이전트의 관리 기능으로 중복된 정보 검색을 제거할 수 있었으며, 고객들에게 여러 온라인 도서 사이트의 도서 정보들을 실시간으로 제공할 수 있게 되었다. With the proliferation of E-Commerce, product informations and services are provided to customers diversely. Thus customers want a software agent that can retrieve and recommend goods satisfying various purchase conditions as well as price. In this paper, we present a MAS (multi-agent system) for book information retrieval and recommendation in E-Commerce. User's preference is reflected in the MAS using the profile which is taken by user. The proposed MAS is composed of individual agents that support information retrieval, information recommendation, user interface, and web robots and a coordination agent which performs information sharing and job management between individual agents. Our goal is to design and implement this multi-agent system on a Windows NT server. Owing to the workflow management of the coordination agent, we can remove redundant information retrievals of web robots. From the results, we could provide customers various purchase conditions for several online bookstores in real-time.
윤인식(In-Sik Yun),권성태(Sung-Tae Kwon),선종성(Jong-Sung Sun),명노종(No-Jong Myung),정우현(Woo-Hyun Chung),손태순(Tai-Soon Son),김경국(Kyung-Kook Kim),김순철(Soon-Cheol Kim) 한국철도학회 2000 철도저널 Vol.3 No.2
This study proposes the integrity evaluation of the bogie frame using ultrasonic fractography analysis. Analysis objectives in this study are to investigate fracture planes of damaged zone by the A-scan method. The surface condition of fracture planes shows degree of degradation by the stress concentration. The detection of the natural defects in the bogie frame is performed using the characteristics of echodynamic pattern in ultrasonic signal. Results of ultrasonic testing agree fairly well with those of actual fracture plane. In quantitative fractography analysis, microstructures of actual fracture plane turned out to be intergranular and transgranular fracture. Proposed ultrasonic fractography analysis in this study can be used for the integrity evaluation of the bogie frame.