• 한국철도학회:학술대회논문집
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• 한국철도학회 2002년도 춘계학술대회 논문집
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• pp.486-491
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• 2002

As the European Union has strengthened and computerized signalling systems have been widely used, the European common standards for the safety of railway signalling systems such as EN 50126, EN 50128, ENV 50129, EN 50159 began to be published from 1996 in CENELEC. At that time, a safety guideline, 'Safety Guidelines for Computerized Train Control and Protection Systems' was published in Japan. The Korean National Railroad also published a safety recommendation for the train control systems with taking into account the Korean railway conditions. Now the preparations for IEC/TC9 Standards are well underway and these standards correspond to CENELEC Standards referred above. These movements and activities are to cope with many technical and operational changes and to reflect the globalization trend of railway sectors along with the computerization of signalling devices. In this connection, this paper studies the globaliztion trend in the safety standards for railway signalling systems and discusses the counterplans for the trend.

• 대한인간공학회지
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• 제7권2호
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• pp.23-30
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• 1988

The methods suggested up to now for 3-dimensional anthroponetry require much efforts and costs in measuring and analysing. To solve these problems, we adopt the methods such as Moire Interferometry, Image processing and Computer Vision Technique which are efficient in processing anthropomorphic data. Moire contourgraph was constructed by using Ar-ion laser as a light source (2 Watt power and 5145 A wavelength) and laser beam expander(20X). Image data can be 3-dimensionally reconstructed as the surface patch and geographical relation between faces expressed by mash-point and edges as units. This research is focused on the followings; 1) Development of an economical and reliable measuring method. 2) Design of reproduction methods of 3-dimensional human body data. Therefore, our research makes it possible to study further advanced quantitative analysis of human body.

• 대한전자공학회논문지
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• 제14권3호
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• pp.12-17
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• 1977

현대 정보사회를 이끌어가는 컴퓨터의 효과적인 활용을 위하여 한글의 컴퓨터가 무엇보다도 시급하지만 한글의 특수성인 모아쓰기로 인하여 용이한 일이 아니다. 한글의 특수성을 분석하여 13×14 Dot Matrix방식의 한글문자 발생장치를 제작하여 소프트웨어 프로그램에 의한 컴퓨터의 한글 입출력을 가능하게 하였다.

• 한국건축시공학회지
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• 제2권4호
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• pp.137-144
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• 2002

In the modern age. Building is getting higher and larger according to owner and social demands. Now when we are facing the need of the cost down and the reduction of economic loss. In this paper, the characteristics of the present conditions of site management were investigated with the field survey. And The Purpose of this study is to suggest the rational plans of construction planning in site management. The method of site management. however depends on experience of a construction manager. in order to solve this situation, it is necessary to create a method of site management that is adequate for the condition of construction. By cultivating excellent sub contractors, we can expect precise construction with a few experts. improvement in qualify of construction from standardization, computerization of each process. And the expectancies of this paper are that it can be used as efficient data for improvement of system to systematize site management work in Korea.

• 대한산업공학회지
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• 제29권1호
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• pp.78-89
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• 2003

Ordering is performed to reduce the amount of fill-ins of the Cholesky factor of a symmetric positive definite matrix. This paper proposes a new ordering algorithm that reduces the fill-ins of the Cholesky factor iteratively by elimination tree rotations and clique separators. Elimination tree rotations have been used mainly to reorder the rows of the permuted matrix for the efficiency of storage space management or parallel processing, etc. In the proposed algorithm, however, they are repeatedly performed to reduce the fill-ins of the Cholesky factor. In addition, we presents a simple method for finding a minimal node separator between arbitrary two nodes of a chordal graph. The proposed reordering procedure using clique separators enables us to obtain another order of rows of which the number of till-ins decreases strictly.

• 산업공학
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• 제16권1호
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• pp.111-116
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• 2003

Business integration has been considered as one of the most critical success factors that enable the firms to gain competitive edges. Despite this trend, it has also been found among not a few companies that the activities that should be functionally tied with are performed even independently. In this study, an integrated model of production planning and inventory has been developed. Computerization of the production planning activities is proposed and implemented. We also proposed the reasonable inventory levels of each item using historic data of the items, which are composed of safety stock from the given fill-rate, operating stock from the production patterns, and reserved stock from the production planning. This study has helped the firm to have clearer job definition of the related processes, to tightly control the inventory by setting and tracing the reasonable fill rates for every product, and to quickly respond to the market changes through the computerized production planning process.

• 한국안전학회지
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• 제11권2호
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• pp.128-135
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• 1996

The aim of this study is that HPMA(Hazard Potentials in My Areas) System is to present for establishment of the voluntary safety management on industrial region. HPMA System Itself means that manager, supuryisor and worker on process-line find out the hazardous and/or unsafe potentials from their work places and make the plan of improvement by means of mutual communication with top manager and the department of safety staff, eventually put in the practice. In case that it takes the longer time to improve hazard potentials and is impossible improvement by existing technique, appropriate check-list will be used by the worker himself on the identified production line. Form this system, therefore, it makes them to get more and more sensitivity to the hazards. In this study, we present the voluntary safety management system which is controlable systematically and in the final analysis the direction of safety management by computerization of HPMA System which is activated in their work places.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2005년도 추계종합학술대회
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• pp.1132-1134
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• 2005

현재의 병원 전산 시스템은 각 병원의 자체 전산화 구축으로 인하여 각 개인의 진료기록 및 처방전 등 개인의 신상 자료가 한 병원에 국한되어 있고 타 병원 및 공공기관에서의 진료기록 필요시 진단서를 발급해야 하는 불편함이 초래하고 있다. 이에 본 논문에서는 개인의 신상 기록 및 진료기록 통합 시스템을 제안한다. 제안된 방법은 통합데이터베이스 서버를 구축하고 각 병원 및 약국에서는 전용선을 통하여 접속함으로서 개인의 진료기록 및 처방전을 각 병원과 약국에서 공유할수 있게 되어 병원관리의 투명성과 신뢰성이 제고된다.

• 정보관리연구
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• 제34권1호
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• pp.77-98
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• 2003

본고는 우리나라 공공도서관 전산화 과정의 현황을 분석하고, 홈페이지를 통한 디지털서비스의 몇 가지 문제점들을 검토하였다. 검토결과 디지털서비스의 기술수준은 매우 우수하지만, 지역간 격차가 심한 것으로 지적되었다. 본고는 지역특성에 근거한 특성화된 자원개발을 인터넷시대 공공도서관 디지털서비스의 생존전략으로 강조하였다.

• 한국IT서비스학회지
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• 제9권2호
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• pp.107-127
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• 2010

Typical misconceptions on Enterprise Resource Planning (ERP) among practitioners and researchers are reviewed. Companies can make, buy, or rent ERP solutions, but typically, ERP is conceived as ready-made, off the shelf application software package. The benefits of ERP adoption are frequently generalized without proper clarification of the requisite conditions. The specific outcomes of ERP adoption are not adequately differentiated from those of general computerization. To avoid the side-effects caused by those misconceptions, we 1) clarify the concept of ERP and the methods of sourcing it, 2) specify the requisite conditions for the benefits from packaged ERP solutions, and 3) explain the generic characteristics of ERP, direct effects and resultant possible outcomes of the adoption of ERP.