• Journal of the Korean Society of Safety
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• v.13 no.1
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• pp.77-84
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• 1998

Hazard and operability (HAZOP) analysis is one of the safety analysis method that is used in the chemical complex, because it can systematically identify causes and consequences of all the deviation that could occur. Since this method needs to hire specialized experts, it is costly and time-consuming. Therefore HAZOP Expert System has been developed to automate this analysis. This approach introduced object-oriented method and knowledge representation which is hierarchical tree of units to supply flexibility in the system, functional semantic network, propagation equation and rule-chaining method to set up the expert system for automating HAZOP analysis.

• Defense and Technology
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• no.9 s.283
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• pp.66-73
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• 2002

대부분의 현대 항공기 조종실은 유사한 형태인 HUD, 2개 이상의 MFD, UFC, HOTAS 등으로 구성된다. 앞에서 언급한 바와 같이 최근에는 전투기에도 HMD와 DVI(Direct Voice Input)를 적용하고 있다. 미래의 조종실은 빠르게 발전하고 있는 평면 시현 기술로 인해 HDD는 2010년대에는 15 X 20인치 크기까지 지원이 가능할 것으로 예상되며 HUD가 없어지고 높은 해상도가 넓은 시계영역을 가진 HMD가 없어지고 높은 해상도와 넓은 시계영역을 가진 HMD로 다중 운용(Joing Service Operability) 및 다중 임무 수행이 가능한 조종실이 될 것이며 2025년대에는 레이저 운용에 적합한 조종실로 변화되어 캐노피가 없는 조종실(Windowless Codkpit) 또는 불투명 HMD를 사용한 설계개념으로 발전할 것이다.

• Proceedings of the Computational Structural Engineering Institute Conference
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• 1992.10a
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• pp.148-155
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• 1992

A method to verify seismic qualification of the plant protection system cabinet for a nuclear power plant is presented. A finite element model of the cabinet is developed and correlated to the dynamic properties observed during in-situ vibration test of the actual structure. The results of the modal analysis provide insight into the fundamental dynamic properties of the structure. Techniques for verifying structural integrity and operability are exemplified by summarizing response spectrum and time history analyses of the structure.

• Journal of the Korea Safety Management & Science
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• v.2 no.1
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• pp.129-139
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• 2000

Hazard and operability Review(HAZOP) is widely used as a process safety analysis which systematically identifies potential process deviations and settles the problems. In this paper, we carried out a process hazard analysis using HAZOP in K chemical plant. As a result, we showed that the plant could be operated more saftly and be saved a lot of money by eliminating several existing hazardous factors through the change of processes and designs.

• Proceedings of the Korean Institute of Industrial Safety Conference
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• 2002.05a
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• pp.317-322
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• 2002

위험성 편가의 목적은 현재의 위험 상태를 평가하고 이들 위험이 허용가능한가를 평가하여 시스템의 개선과 위험을 감소시기는 데 있다. 기업에서 모든 위험을 Zero화 시킨다는 것은 현실적으로 어렵기 때문에 사업장에서 발생할 수 있는 모든 이탈 상태를 파악하고, 안전경영의 우선순위를 정하여 운영해야 한다. 이에 필요한 것이 위험성 평가이며 위험성 평가의 필수적인 요소는 정량화를 통하여 허용가능성 여부를 판단하는 것에 있다.(중략)

• Proceedings of the Korean Institute of Communication Sciences Conference
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• 2004.11a
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• pp.177-177
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• 2004

• Journal of the Korean Society of Safety
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• v.11 no.4
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• pp.54-63
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• 1996

We establish an expert system for the xylene oxidation reaction process of chemical plants using HAZOP(Hazard and Operability Studies). Our research focus Is only reduced to the cooling system of the total chemical plant due to lack of information. This expert system shows the priority of reasons for the system failure using confidence factor.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2022.11a
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• pp.225-226
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• 2022

In order to secure the practicality of services using drones, improve on-site operability, and improve the convenience of aircraft maintenance, it is necessary to develop a drone station that can be safely stored while ensuring charging performance. Therefore, a total seven points of improvement were derived through laboratory experiments after the development of the first prototype, and an improved second prototype will be developed in the future based on the preceding processes.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.13 no.1
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• pp.45-52
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• 2009

Currently broadcasting and telecommunication has integrated, And IPTV Service has appeared who called TPS(Triple Play Service) which integrated with broadcasting, telecommunication and Phone Service. IPTV provide broadcasting service and VOD(Video on Demand) service, and it must be satisfied digital content security. For this condition, IPTV Forum working on standardization of interface for digital content security. The Security solution for broadcasting and VOD are CAS (Conditional Access System) and DRM(Digital Rights Management). But these solutions manufactured by many vendors, so there is no inter-operability. And after finished standardization of interface for CAS and DRM system, the problem of inter-operability with them will be issued. For this reason, Rights management system which possible to operate independently with platform is necessary. In this paper, To protect multimedia digital content, we designed and implemented Conditional Access Management System.

• The KIPS Transactions:PartD
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• v.11D no.1
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• pp.123-132
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• 2004

Defense software has short of interoperability due to the vertical development method which is dependent heavily on application area and development environments. In order to prevent from lack of reusability and operability in application domain software development technology needs component concept and makes shift to the trend of domestic software component industry. This paper covers the research topics such as domain analysis and component architecture to improve and extend reusability and inter-operability for defense information system by two approaches, i.e. CBW (Command Based Work flow) analysis and UML components identification.