• 대한전기학회:학술대회논문집
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• 대한전기학회 1998년도 추계학술대회 논문집 학회본부A
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• pp.201-203
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• 1998

This paper presents the framework for analysis of small-signal stabili1ty. In this framework the equilibrium points of system DAE model are traced using continuation method and instability points are determined on the solution path. Especially Implicit shift QR-modified ARnoldi method is utilized to calculated the rightmost eigenvalues. ISPS measure is utilized to determine critical parameters.

• 대한산업공학회지
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• 제31권2호
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• pp.152-163
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• 2005

The focus of enterprise collaboration of supply chain management, has changed from integrating and exchanging business information to integrating and managing business processes between business partners. However, the collaboration is difficult due to the inherent complexity such as diverse business processes and dynamic business environments. To settle these problems, a reference model based enterprise architecture framework for the collaboration of supply chains is proposed in this paper. The supply chain collaboration framework is composed of three reference models capturing the different views of supply chain collaboration: supply process reference model, service component reference model, and technology and standard reference model. As the framework adapts the OMG's metadata architecture, the processes in the supply chain can be extended and integrated with other value chains, such as design chains, when it is necessary. Using the proposed framework, business managers can rapidly integrate and manage their business processes with their suppliers and customers.

• 시스템엔지니어링학술지
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• 제8권2호
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• pp.47-55
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• 2012

Tsunami disaster, which ruined Japan Fukushima nuclear power plant sites in 2011 March, has raised not only the perception of that Tsunami and/or large scale flooding possibly surpass the design baselines for industry facilities and plants, but also the necessity to establish recovery system against flooding. This study suggests the framework for flooding and drainage system in compliance with flooding and drainage concept to define and identify requirements, functions, and components of the system with traceable relations. The framework with combination to CMMI engineering process is the base of corresponding high level system design.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2010년도 춘계학술대회 논문집
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• pp.939-940
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• 2010

• Journal of Advanced Marine Engineering and Technology
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• 제27권6호
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• pp.687-695
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• 2003

• 한국정밀공학회지
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• 제23권5호
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• pp.24-29
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• 2006

• Bulletin of the Korean Chemical Society
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• 제35권2호
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• pp.651-654
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• 2014

• Bulletin of the Korean Chemical Society
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• 제34권10호
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• pp.3133-3136
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• 2013

• 대한지구과학교육학회지
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• 제13권1호
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• pp.121-133
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• 2020

본 연구는 융합(STEM)교육의 핵심인 공학 설계를 기반으로 과학 수업에서 공학을 의미있고 쉽게 융함하여 수업을 설계할 수 있도록 수업 준거틀을 제안 한 것이다. 본 연구에서 개발된 과학·공학 융합 수업 준거틀은 과학과 공학 융합 교육에 대한 국내외 이론적, 실제적 선행 연구 분석과 전문가 토의, 그리고 현장교사들의 피드백에 근거하여 개발되었다. 과학·공학 융합 수업 준거틀은 과학 수업에서 공학 설계를 주요 교수법 및 문제해결 방법으로 사용하며, 선행 연구에서 제시된 공학 융합 수업의 핵심요소와 학년군별 성취수준을 고려하여 공학 설계에 대한 이해가 부족한 현장 교사들이 쉽게 공학 설계를 과학 수업에 도입할 수 있는 방법을 제공한다. 또한 본 연구에서 개발된 과학·공학 융합 수업 준거틀은 복잡하게 제시된 한국 STEAM 교육 준거틀의 단점을 보완하여 현장교사뿐 아니라 예비교사들이 쉽게 공학적 설계와 문제해결과정에 대해 이해하고 이를 적용하여 과학 융합 수업을 설계하는데 구체적인 지침을 제공할 수 있다.

• 한국정밀공학회지
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• 제23권3호
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• pp.22-31
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• 2006

This paper introduces an approach to an ontology-based knowledge framework for product life cycle management (PLM). Participants in a product life cycle want to share comprehensive product knowledge without any ambiguity and heterogeneity. However, previous knowledge management approaches are limited in providing those aspects. Therefore, we suggest an ontology-based knowledge framework including knowledge maps, axioms and specific knowledge far domain. The bottom level, the axiom, specifies the semantics of concepts and relations of knowledge so that ambiguity of the semantics can be alleviated. The middle level is a product development knowledge map; it defines the concepts and the relations of the product domain common knowledge and guides engineers to process their engineering decisions. The middle level is then classified further into more detailed levels, such as generic product level, specific product level, product version level, and product item level for PLM. The top level is specialized knowledge fer a specific domain that gives the solution of a specific task or problem. It is classified into three knowledge types: expert knowledge, engineering function knowledge, and data-analysis-based knowledge. This proposed framework is based on ontology to accommodate a comprehensive range of unambiguous knowledge for PLM and is represented with first-order logic to maintain a uniform representation.