• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 1996년도 가을 학술발표회 논문집
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• pp.105-112
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• 1996

A practical approach for the assessment of system reliability-based safety and load carring capacity under vehicle traffics is proposed for the realistic evaluation of safety and rating of cable-stayed bridges. A partial event tree analysis model incorporating major critical failure paths is suggested as a practical tool for the system reliability analysis and system reliability-based capacity rating. The proposed approach for the system reliability analysis and system reliability-based rating is applied to the safety assessment of the Jindo Bridge which is one of two existing cable-stayed bridges in Korea. The results of analyses at the system level based on the system reliability are compared with those at the element level.

• 한국산학기술학회논문지
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• 제16권9호
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• pp.5955-5967
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• 2015

본 연구는 도시정비사업 내 공공관리자제도의 평가 필요성을 인지하고, 공공 관리자 제도의 평가기준을 체계적이고 객관적으로 수립하고자 정책평가의 틀을 이용하여 선행연구와 전문가의 의견을 바탕으로 공공성, 전문성, 참여성, 합리성, 지속가능성이라는 다섯 가지의 방향 아래 사업계획 단계에서부터 운영, 참여, 사업의 사후평가단계까지 확장된 개념의 지속적인 평가요소를 구축하였다. 중요도 분석 결과, 평가 분야에서는 사후관리 및 지속성 분야가 가장 중요하게 도출되었으며, 세부 평가 요소로는 사업 시 안정적 경제구조 조성 유도와 투명한 운영체계 수립, 제반 비용 절감, 자족성 있는 지역발전의 유도 등의 항목이 중요한 요소로 분석되었다. 이상과 같은 분석결과를 통해 얻을 수 있는 시사점은 다음과 같다. 첫째, 공공관리자제도는 사업의 계획단계부터 사업 완료 이후 사후관리 부분까지 원칙을 세워서 그에 맞게 운영방안을 수립해야한다. 둘째, 공공관리자제도의 지속가능한 운영을 이끌어내기 위해서는 지속적인 재교육 및 주민의 사업 참여 활동이 필수적이다. 셋째, 공공관리자제도를 평가할 때의 종전의 물리적, 경제적 효과에 치중하여 이끌어내던 성과관리시스템에서 탈피하여 사업의 운영과정에서의 갈등관리 등 비 물리적 평가기준 등의 요소 또한 평가될 필요가 있다.

• 시스템엔지니어링워크숍
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• 통권4호
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• pp.135-140
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• 2004

Defense analysis & evaluation includes menace analysis, validation analysis, problem analysis, scientific technical analysis, technical trad-off analysis, alternative analysis, cost analysis, etc. Reliable related data is required to perform these analysis activities efficiently. but in case of these defense analysis & evaluation data acquisition system, the data is insufficient and scattered about each organization. the data of database system is also not utilized sufficiently. abroad technical data is also low level data such as catalog or military officer's collection. therefore, this paper propose defense analysis & evaluation data acquisition system by systems engineering process. we also propose construction method of data acquisition system.

• 대한토목학회논문집
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• 제29권1D호
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• pp.63-72
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• 2009

본 연구에서는 우리나라 실정에 맞는 도로포장의 장기 공용성 추정 및 자산가치 평가를 위한 의사결정지원시스템을 구축하여, 도로 포장의 공용성 평가와 생애주기분석을 통한 예방적 유지보수를 위한 최적 타이밍의 결정 등에 대한 방안을 제시하고자 한다. 또한 현재 일정한 금액의 예산으로 예산수준에 맞게 유지보수의 장소를 선정하는 근시안적인 예산관리시스템의 문제점을 보완하기 위해 도로관리자가 필요한 예산의 수준을 예측할 수 있도록 장기 소요예산 예측시스템 및 경제성원리를 도입하여 최소 비용으로 도로의 공용성을 유지하기 위한 도로포장자산평가시스템의 구축방안을 제시하고자 한다. 도로포장자산평가시스템 활용에 있어서, 적정수준의 포장평가지수를 유지하기 위해 대상구간의 당해년도 필요유지예산을 참고하여 효율적으로 예산을 편성할 경우, 가장 합리적인 도로포장 유지보수 예산을 분석할 수 있었다. 이러한 결과로, 불필요한 예산의 낭비를 미연에 방지할 수 있을 것으로 판단되고, 도로포장의 장기 공용성 추정 및 자산가치 평가를 위한 의사결정 시스템 개발을 통해 최적 유지보수 기준의 제시 및 새로운 도로포장의 공법 도입을 위한 사전 평가 및 타당성 분석에도 응용할 수 있을 것으로 기대된다.

• 대한안전경영과학회지
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• 제11권1호
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• pp.175-182
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• 2009

The effort for GSI based IT system consolidation has been continued due to the increase of the system and complication increase of system connection, mainly by the global company. Since successful example of GSI realization by part of developed company affect to Korea, global level IT system consolidation has been examined mainly by the domestic company that have great deal of overseas business. Although they have examined consolidation possibility mainly on R&D, finance, operation management part which is the base part of company management, there are limitation for consolidation realization because of the difference between regional business problem of huge cost needed for consolidation. To overcome these realization limitations, it is necessary to lead risk and cost reduction through stepwise part unity and decide Priority Evaluation Framework for Consolidation target and systematic consolidation strategy. For GSI realization, appropriate distributions of unification time according to target system are needed. In this study, based on easiness and usefulness of consolidation and connection between the targets, evaluation methodology for Priority Evaluation Framework of system consolidation has been developed. Priority Evaluation Framework has been decided by applying developed methodology to global production company of high tech industrial part. Through this methodology, companies can realize successful and stable GSI by investing global resources intensively by Priority Evaluation Framework of consolidation target system.

• Journal of Mechanical Science and Technology
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• 제19권7호
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• pp.1469-1477
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• 2005

Vibrations related to ride comfort should be considered at the beginning of design stage. In general, ride comfort of human is mainly affected by vibration transmitted from the floor and seat. Also, vibration level is very important regarding with running safety on freight wagon. To ensure ride comfort for passenger coach and vibration level for freight wagon, tests had been repeated by different test procedures with several equipments. With different measuring and evaluations for these results, it took much time to evaluate test results. In this paper, a new evaluation procedure was developed combining several software for ride comfort and vibration level test on railway vehicles. In addition, this developed system is capable of ride comfort test and vibration test by a single integrated system that is capable of immediate reporting the test result. With this developed system, the comfort in a passenger coach and the vibration in a freight car were evaluated. And the simulation results from the proposed system are verified by a field test.

• 한국소음진동공학회논문집
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• 제16권2호
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• pp.124-131
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• 2006

This study introduces an environmental noise evaluation procedure for wind turbines(W/T) and the evaluation result of a 750 kW wind turbine(W/T) system. Test and evaluation are performed according to the international standard IEC 61400-11 on J48 W/T which is under operation in Daekwanryung W/T test site. With the meteorological data and W/T operational data, noise data are monitored and analysed. An integrated monitoring system is constructed in the test site and is utilized for the evaluation. From the measured noise data, acoustic power level, directivity and tonality of the W/T are estimated under the wind speeds required fly the International standard. The purpose of the study is to establish an W/T noise evaluating system satisfying the international standard and to obtain noise data for home made 750 kW W/T.

• 산업기술연구
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• 제27권B호
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• pp.59-64
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• 2007

This study introduces an environmental noise evaluation procedure and results for a wind turbine (W/T) system. Test and evaluation are required by the international standard IEC 61400-11 in the aspect of environmental effect. Test and evaluation are performed on U-50 WT model which is first developed by the domestic W/T manufacturer. W/T test model is under operation in Daekwanryung wind test site. An integrated monitoring system in the test site is utilized for the evaluation. With the noise signal, meteorological data and W/T operational data are monitored in real time by the integrated monitoring system using LabVIEW. From the measured noise data, acoustic power level are estimated and compared with those of other similar size WT under the wind speeds required by international standard.

• 대한음성학회:학술대회논문집
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• 대한음성학회 2005년도 춘계 학술대회 발표논문집
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• pp.41-44
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• 2005

This study is about Chinese tone evaluation system for Korean learners using speech technology, Chinese prounciaion system consists of initials, finals and tones. Initials/finals are in segmental level and tones are in suprasegmental level. So different method could be used assessing Korean users' Chinese. Differ from segmental level recognition method, we chose pattern matching method in evaluating Chinese tones. Firstly we defined speakers' own speech range and produced standard tonal pattern according to speakers' own range. And then we compared input patterns of users with referring patterns.

• 경영과정보연구
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• 제2권
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• pp.311-334
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• 1998

By decreasing in CPU price and development of computer assembling technology, personal computer fake a good chance to accelerate its supply. Recently, as being introduced new computing technology so called multi media, teaming assist system which is based on single media such as studying book, cassette tape, video tape, or something else is rapidly being replaced by new assist education system based on multi media in which it is operated by the personal computer. In the computer assist education system, there is an evaluation module which appraise learner's study level into the next study strategy. At the view of this point, this part is very important. In this part, there are some factors like Importance, complexity, or difficulty which commonly include fuzzy factors in our surrounding. But until now, we are still out of the level to handle the evaluation module adequately among the some studies. In this study, we would like to suggest a new module that evaluate learning achievement of ICAI which have a variety of fuzzy environment. We combine Independent fuzzy environment like importance, complexity, difficulty into making total evaluation of learner's achievement. By the result, with expressing by linguistic form, this study can provide the theoretical basis in which we will be able to carry out sentence toward evaluation among elementary school.