• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2002년도 ICCAS
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• pp.69.3-69
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• 2002

The reliability of system is to become a important concern in developed industry. The controller based on the reliability is so important position. A reliable system is for system protection and human life by fault detection and control action against the transient condition of system. The aerospace system , nuclear reactor and chemical reactor are representative of a reliable system. This paper presents analysis of reliable system reliability, formal problem statement of optimal redundancy based on the reliability for a reliable system. And the problem is optimized by genetic algorithm. The genetic algorithms is useful algorithm in case of...

• 진공이야기
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• 제2권4호
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• pp.4-8
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• 2015

Recently, plasma technology has been increasingly applied to agriculture and foods. Owing to the three important plasma characteristics which are activation, sterilization, and catalysis, the plasma technology can be properly applied to agriculture, in the other word, to the whole cycle of agriculture from farm to table: seed germination, plant growth, harvest and storage, washing, packaging, transport, in store, household, cooking, garbage, etc. Some representative case studies for plasma activation, sterilization, and catalysis show well that plasma technology can be successfully applied to the whole cycle of agriculture.

• Management Science and Financial Engineering
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• 제21권1호
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• pp.31-39
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• 2015

Financial integration is a phenomenon in which global financial markets are closely connected with each other. This article investigates the integration of Korean stock market with other stock markets using a multivariate GARCH analysis. We chose total seven countries including Korea for this paper based on the amount of export and then we chose major stock indices which can be thought as representative stock markets of those countries. The empirical analysis has shown that countries' financial integration.

• 대한원격탐사학회지
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• 제16권2호
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• pp.189-198
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• 2000

This study introduces the CEOS (Committee for Earth Obseuing Satellites) standard format structure that is applicable to image formats of Earth observation systems, and describes several important parameters for post-process applications, especially in precise SAR geocoding and terrain correction application. ERS and RADARSAT were chosen as a representative case and the meaning and usage of various fields in LEADER file were investigated in detail from the viewpoint of SAR geocoding and terrain correction applications.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2020년도 가을 학술논문 발표대회
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• pp.179-180
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• 2020

In the budgeting guidelines, there are rules for calculating design fee and direct costs. However, only the design fee is calculated excluding the direct cost, which causes the cost to be insufficient. Therefore, this study is designed to analyze representative cases where direct costs are insufficient, draw out problems, and propose a way to improve design fees.

• 농촌계획
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• 제21권2호
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• pp.189-199
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• 2015

This study made use of 9 types of utilizing idle farmland deducted from existing research in order to examine cases by type of idle farmland, and selected representative cases by type after analyzing contents of 165 available newspaper articles. Selected Cases were assorted into agricultural use and nonagricultural use, and agricultural use are as followed. (1)Community Service/Farming type is the case of Gimhae city reported on 'Busan Ilbo', (2)High Income/Farming type is the case of cooperative unit of Geumjeong crude drug in Yeongam appeared in 'Newsis', and the case of Omija industry in Mungyeong reported on 'Hankyoreh', (3)Tourism/Landscape/Farming type is the case of rape flowers and buckwheat flowers in Gupo village reported on 'Asia News Agency', (4)Stock Raising/Farming type is the case of growing foraging crops published in 'The Daejeon Ilbo', (5)Weekend farm type is the case of utilizing idle farmlands and creating weekend farm reported on 'Mediawatch', (6)High income/Forest type is creating Mulberry cultivation areas in Hamyang-Gun published in 'Yonhap News', (7)Ecology/Landscape/Forest type is forestation project of idle land reported on 'Newsis', (8)Agricultural Experience Study type is the case of managing agricultural experience study center in Dosun elementary center published in 'Sisajeju' and the case of non-agricultural application case, (9)Ecological Environment type is the case of wetland restoration of idle farmland in Gochang. This study investigated and arranged detailed contents by the literature search and interview investigation according to investigating items such as utilizing area, main agent, purpose, utilizing item, utilizing content, etc. by case. With that, it deducted implications as well as case characteristics, and finally suggested political proposals through the case analysis.

• 대한토목학회논문집
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• 제33권6호
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• pp.2519-2528
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• 2013

표준품셈은 공공기관 및 민간기관의 공사비를 책정하는 기본적인 자료로 이용되고 있다. 본 논문은 하천공사에서 선정된 대표공종을 대상으로 새로운 형식의 표준품셈 및 장비의 작업량 산출방식을 제안하고자 한다. 품셈에서 작업조 구성의 정보 및 1일 생산성 정보의 제공이 가능하도록 함으로써 공정계획 단계에서 품셈의 적용성을 향상시키고 장비의 작업량 산출과정을 간소화하여 사용자의 편의성을 증대할 수 있기를 기대한다. 하천공사의 경우 작업조건이라는 변수가 매우 크게 작용하기 때문에 생산성 정보 및 기계의 작업량을 일반화 하는 것은 많은 어려움이 존재하지만 지속적인 생산성 정보와 기계의 작업량 정보를 개선하여 정확도를 향상할 수 있다면 품셈을 통한 공정계획 수립 및 적산과정의 간소화가 가능할 것이다.

• 한국통신학회논문지
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• 제38B권12호
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• pp.954-961
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• 2013

본 논문은 퍼지ART의 학습 방법의 하나인 FCSR(Fast Commit Slow Recode)에서 패턴 인식을 향상시키기 위해 가변 학습을 이용하는 새로운 학습방법을 제안하였다. 기존의 학습 방법은 연결 강도(대표패턴)의 갱신에 고정된 학습률이 사용된다. 이 방법은 같은 카테고리 내의 입력패턴과 대표패턴의 유사성의 정도와 관계없이 고정된 학습률로 연결 강도를 갱신한다. 이 경우 카테고리 경계에 있는 유사성이 낮은 입력패턴이 연결강도의 갱신에 크게 영향을 주게 된다. 따라서 잡음 환경에서 이것은 불필요한 카테고리 증식의 원인이 되고, 패턴 인식 능력을 낮추는 문제가 된다. 제안된 방법에서는 대표 패턴과 입력 패턴 사이에 유사성이 적을수록 연결강도의 갱신에 입력패턴의 기여를 낮추어간다. 그 결과 잡음환경에서 퍼지 ART의 불필요한 카테고리 증식을 억제하였고, 패턴 인식 능력을 향상시켰다.

• 국제지역연구
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• 제22권4호
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• pp.77-98
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• 2018

본 논문의 목적은 제조업, 특히 철강기업의 공급망 경쟁력 확보를 위한 최적의 메커니즘 사례를 연구함으로서 그 시사점을 찾고자 하는 것이다. 이를 위해 본 논문에서는 국내 대표 글로벌 철강그룹의 계열사를 대상으로 그 사례를 살펴보았다. 지금까지의 기업 전략연구는 주로 대형 그룹사의 모기업을 중심으로 이루어져 왔으나, 이번에는 대그룹 계열사에 대한 전략적 한계점과 특성을 고려하여 ser-M기반에서 공급망관리 메커니즘을 다루도록 하며, 이를 통해 글로벌 철강업체 및 대기업 계열사에 적절한 메커니즘을 탐색해보고자 한다. 연구결과, 대기업 그룹의 계열사는 그룹 모기업의 필요에 의해 건립되는 경우가 많아 모기업(S) 중심의 메커니즘이 작동되기 쉽다. 따라서 계열사 입장에서 통제 가능한 내부 자원(R)을 최대한 활용하는 메커니즘이 적합한 것으로 나타났다. 본 논문의 ser-M기반 공급망 메커니즘 연구는 글로벌 철강 제조업 공급망 사례를 중심으로 메커니즘을 살펴보았다는데 의미가 있으며, 또한 국내 대표그룹 계열사에 대한 사례연구란 점에서 그 의의를 찾을 수 있다.

• KIEAE Journal
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• 제9권4호
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• pp.11-16
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• 2009

To act and respond to the climate changes and to bring about power-saving in buildings, the changes in the atmospheric data in Korea are recorded and assessed. For the two regions representative of Korea, the data obtained from HadCM3 and actual data are compared and analyzed so as to concretely evaluate and confirm the changes taking place in the cooling and heating degree days in Korea. For the past 40 years, from 1996 to 2005, the number of heating degree days was on the decline and in the two representative regions, between 1980's and 1990's, the number of decrease in the heating degree days had been quite large. The number of cooling degree days showed a trend of increase since the 1970's and just as in the case of heating degree days, the extent of increase was quite large between the 1980's and the 1990's. The results of comparison of the number of heating and cooling degree days, one obtained from the "Korea Meteorological Administration" and another from the HadCM3 data (E127.5,N37.5,E127.5,N35), which is one of the ways of predicting the climate, showed similar trends in the number of heating degree days in the Yeosu area. However, in the case of the number of heating degree days in Seoul and the number of cooling degree days both in Seoul and Yeosu, the differences in the number ranged from a minimum of 300 days to a maximum of 1500 days. This could be attributed to the grid points used in the HadCM3, the differences in the values of latitudes and longitudes of these two locations considered in this study, topographical differences, heat island effect caused by population density etc. and while using the HadCM3, these variables factors must be taken into consideration.