• 대한전기학회:학술대회논문집
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• 대한전기학회 1995년도 하계학술대회 논문집 A
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• pp.168-170
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• 1995

This paper proposes the circuit of the simple synthetic testing facility using LC resonance circuit. The analyzed results of the circuit which can be useful for the design stage of the testing facility are also shown. EMTP has been used to analyze the circuit. Two cases of short-circuit test results obtained from the simple synthetic testing facility in KERI are shown with the waveforms of current and voltage. The results also indicate that the simple synthetic testing facility using LC resonance circuit can be easily designed and used very usefully for the research and development for the switchgears.

• 항공우주기술
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• 제3권1호
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• pp.65-78
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• 2004

본 연구는 램제트 엔진 성능시험기의 설계기술 습득을 위하여 진행된 연구의 일부분으로 자유제트 형식 시험기의 설계기술을 연구한 결과를 정리한 것이다. 연구의 대상은 램제트 엔진 성능시험기의 범용 설비인 오염공기 방식 가열기(Vitiated Air Heater), 시험부, 디퓨저, 이젝터 등으로 설계기법 및 설치기법들을 중점으로 연구하였다. 램제트 엔진 성능시험기 시험부는 기본 성능시험기의 작동 영역(마하2~5, 고도0~25km)을 토대로 10개의 작동점으로 재구성하여 각 작동점에서의 마하수, 고도에 따른 시험장치의 초음속 노즐, 디퓨저, 이젝터 등 주요 구성요소들의 물성치(온도, 압력 등)를 계산하였으며, 성능시험기의 구동 방법 등에 대한 내용을 기술하였다.

• 유기물자원화
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• 제28권2호
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• pp.31-40
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• 2020

국내 개인하수처리시설은 불량제품의 유통과 부실시공의 우려가 끊이지 않아 오수처리시설의 계획 및 설계에 적용 가능한 단위공정별로 최소한의 기준은 필요할 것으로 판단된다. 본 연구에서 살펴본 운영실태 분석결과의 문제점 및 필요사항은 1) 개인하수처리시설 관리감독자의 교육 강화, 2) 오수처리시설 운영관리 미흡, 3) 하수처리구역 외 2 ㎥/day 미만 시설의 오수처리시설 의무화 검토, 4) 음식점 오수처리시설에 대한 관리방안 필요, 5) 기술검토결과 부적정 시설에 대한 개선안 마련이 필요하다. 또한 국내·외 개인하수처리시설 관련 지침 및 자료 등을 조사·분석하여 설계·시공 및 유지관리 가이드북을 마련할 필요성이 요구된다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2011년도 춘계 학술논문 발표대회 1부
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• pp.207-209
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• 2011

Numerous reports show that alternative project delivery systems (PDSs) such as design-build (DB), construction management at risk (CMR), and design-build-maintain (DBM) are increasingly used in many countries. This study compared characteristics of each PDS (design-bid-build (DBB), DB, CMR, or DBM) by analyzing quantitative data from 9 research articles. In order to compare characteristics between DBB and alternative PDSs, the study is based on principal 3 factors - Time, Cost, and Quality. DB shows the best performance in the time part and also the cost performance depending on facility type and project size. The performance of quality has minor difference among different PDSs. These results support the fact that using an appropriate PDS by the characteristic of a project makes high value of efficiency and productivity.

• 한국디지털건축인테리어학회논문집
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• 제13권1호
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• pp.23-31
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• 2013

This paper presents computer graphics applying the traditional Korean house(Hanok) style interior to unit-care space of Welfare Facility and proposes the possibility as interior design and construction materials. In this paper, the proposed computer graphic-based model is a single-story building that provides convenient traffic between rooms. Computer graphic-based model is presented by Auto CAD, 3D program (Sketch-UP v.8), rendering program (Podium v.2) based on the traditional Korean house and related work of unit-care welfare facility. Computer graphic-based model that combined unit-care and the traditional Korean house has the following characteristics. In each room of living space, wallpaper and flooring Korean paper(Hnaji) is considered and windows, door, furniture of traditional pattern were placed. The living room(Daechung) that is representative of the traditional Korean house and the corridor (toenmaru) are the elements to save the image of the traditional Korean house as much as possible. Especially, the corridor (toenmaru) is placed to conveniently use in nursing-care facility and home-care support facility. A public space is placed around the inside court (An-madang), while the living space (unit-care) has a sense of independence by separation. Bathroom and kitchen have a modern design for functionality than aesthetic elements.

• Nuclear Engineering and Technology
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• 제55권1호
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• pp.353-363
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• 2023

The STELLA-2 is a large-scale sodium thermal-hydraulic integral effect test facility and supports the development of PGSFR. The facility adopted Pump Simulation Loop System (PSLS) concept for the mechanical sodium pump in the reference reactor to control and to measure the primary sodium flow. Since the component (mechanical pump) is replaced by the loop, it is very important to evaluate the similarity between the pump and the loop. In this paper, to simulate the characteristic of the mechanical sodium pump, the pressure loss along the various options of the loop was evaluated and the comprehensive validity of each design options was analyzed. Using the similarity criteria based on the Richardson number and Euler number conservation, the PSLS design was finalized and the result was within the acceptable error range. Finally, the result of this study was used for construction of the overall facility, STELLA-2.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2006년도 정기학술발표대회 논문집
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• pp.67-73
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• 2006

발주자의 다양한 요구를 충족하고 제한된 예산과 공기 내에서 성공적인 사업 수행을 위해 Design-Build, CM at Risk 등 대체발주방식이 발생 ${\cdot}$ 발전 해 왔다. 기존의 설계시공분리방식으로는 사업 수행의 효율성 제고에 한계가 있어 경쟁력 제고와 다양한 발주방식 제공의 일환으로 CM at Risk 방식의 국내 도입을 고려 해 볼 시기이다. 본 연구는 미국 CM at Risk 시장의 동향, 규모 및 현황과 더불어 대상 사업의 특성, 미국 100대 CM at Risk 수행업체의 특성, 타사업수행방식과의 사업성과 비교, 공공사업 적용을 우한 법제화 현황을 살펴보고, 이러한 분석을 바탕으로 국내 도입에 따른 전제조건과 적용 가능성을 타진 해 본다.

• 한국실내디자인학회논문집
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• 제20권3호
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• pp.242-248
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• 2011

According to a study on the accident patterns of older people in 2006 by Korea Consumer Agency (CISS), the number of accidents of the elderly at home reached 486, and the figure has increased every year. As Korea is about to enter into the aged society, it is important to investigate the factors that cause an accident in the welfare facilities for the aged and establish the barrier-free construction standards. The accident influence factors include facility environmental, physical functional, socio demographic and socio psychological factors. In terms of the verification tools, there are Facility Evaluation Index, FIM, MMSE-K and General Feature. In terms of analysis method, in addition, there are real number, percentage, t-test, ANOVA and logistic regression. In conclusion, this paper attempts to reveal correlations among the accident influence factors using the Facility Evaluation Standards (115 items in total) for facility environmental factor, FIM (3 items) for physical functional factor, MMSE-K (6 items) for socio psychological factor and questionnaire (5 items) for socio demographic factor.

• 한국방사성폐기물학회:학술대회논문집
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• 한국방사성폐기물학회 2003년도 가을 학술논문집
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• pp.524-531
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• 2003

중$\cdot$저준위 방사성폐기물의 유리화 기술은 체적감소비, 유리고화체의 기계적 및 화학적 안전성 등으로 그 유용성이 입증되어 현재 울진 5,6호기에 상용시설의 건설이 추진되고 있다. 유리화시설은 대상폐기물의 높은 방사능 준위로 인해 방사선 안전 설계를 위해서는 차폐해석이 수반되어야 한다. 그러나 국내에서는 유리화 시설의 건설 및 운영 경험이 없으므로, 본 연구에서는 유리화 시설의 향후 상세 설계와 운영계획에 도움을 줄 수 있는 자료를 얻고자 유리화 실증시설의 구조를 따라 기존의 방사선원항을 이용하여 기기별 선량계산을 통해 방사선 차폐 해석을 수행하였다. 차폐체로서는 경제성과 열저항성이 뛰어난 콘크리트를 고려하였다.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2002년도 학술대회지
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• pp.188-191
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• 2002

This paper concerns 3-D graphical modeling and simulation techniques for design and control of automated equipment for construction and facility maintenance. A case study on the use of 3-D graphics techniques for developing a power plant maintenance robot is presented. By simulating equipment operation within the 3-D geometry models of the work environment the environment design was improved. The 3-D graphical models of the equipment and the work environment were further utilized for the control of the robot from a remote distance. By presenting the real-time updated equipment configuration and the work environment to the operator, the graphical model-based equipment control system helped the operator overcome the problems associated with spatial perception. The collision between the robot and the plant structures was also avoided based the real-time analysis of the dynamically updated graphical models.