• 한국방사성폐기물학회:학술대회논문집
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• 한국방사성폐기물학회 2003년도 가을 학술논문집
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• pp.331-336
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• 2003

국내 경수로형 사용후핵연료의 효율적인 관리를 위하여 현재 건식처리공정으로 개발 중에 있는 차세대관리 종합공정의 실증시험이 계획되어 있다. 실증시험의 수행을 위해서는 기밀성이 유지되는 ${\alpha}{\gamma}$ type 핫셀시설과 시설의 안전성 확보가 필수적이다. 핫셀시설 확보에 필요한 재원을 최소화하기 위하여 기존 ${\beta}{\gamma}$ type 핫셀을 개조하여 활용하기로 하였으며, 차세대관리 종합공정의 특성을 고려하여 실증시설의 보수적 안전성 확보와 핫셀 내 효율적인 공정운전을 위한 분야별 설계요건을 확립하였다. 또한 이를 기준으로 실증공정의 공정조건과 상세한 작업흐름을 분석하여 핫셀 및 부대설비와 공정기기들의 구성과 배치론 최적화하였으며, 실증공정 및 핫셀 개조를 위한 기본 설계와 상세설계, 안전성분석과 환경영향평가를 완료하였다.

• 한국입자에어로졸학회지
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• 제12권4호
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• pp.161-168
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• 2016

The purpose of this study is to determine the performance characteristics of the paint particulate and volatile organic compounds(VOCs) simultaneous removal from the spraying paint booth in the laboratory and real site by sticky paint particulate and VOCs simultaneous removal demonstration unit. The sticky paint particulate and VOCs simultaneous removal unit is composed of the horizontal type pleated filter modules and the zig-zag type granular activated carbon packing modules. The test conditions at the laboratory are $50.15g/m^3$ of average paint aerosol concentration and 300 ppm of VOCs concentration which were same as the working conditions of spraying paint booth in the real site. But, the demonstration conditions at the real site are varied according to the working condition of spraying paint booth for the kind of passenger car bodies. The test results at the laboratory obtained that 99% of total particulate collection efficiency at 0.62 m/min of filtration velocity and 84% at 1.77 m/min of filtration velocity. The VOCs removal efficiencies are 97% at $3500hr^{-1}$ of gas hour space velocity and 59% at $10,000hr^{-1}$ of gas hour space velocity. In the real site test, the average removal efficiency of PM10 was measured to be 99.65%, the average removal efficiency of PM2.5 was 99.38%, the average removal efficiency of PM1 was 98.52%, and the average removal efficiency of VOCs was 89%.

• 보건교육건강증진학회지
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• 제25권1호
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• pp.13-23
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• 2008

Objective: The current study was to test if the developed sphygmomanometer was working well and blood pressure information could be collected and monitored systematically through the internet. We tested if the sphygmomanometer and services for blood pressure controlled high blood pressure significantly and the ubiquitous monitoring could be used further. Methods: Kyungwon University, KT Co., Gil Medical Center, LIG Nex1 Co., and Sujeong Health Center conducted an ubiquitous high blood control project in Sujeong-gu, Sungnam, Korea from Mar. 5 to May 16. We developed and applied sphygmomanometer. We distributed the devices to 27 high blood pressure patients. The blood pressures of the residents were monitored through the internet when they measured blood pressures in their homes. A nurse monitored and consulted their blood pressures in the monitoring center in Kyungwon University during the demonstration period. The consultant called them and consulted on their blood pressures in few seconds they used the sphygmomanometers. For the significance of change in blood pressure, we tested statistically with Generalized Additive Model(GAM) and Multi-level Analysis. Results: Both GAM and Multi-level Analysis showed that the blood pressures of persons with ubiquitous blood pressure management decreased significantly as time passed. Conclusions: The internet monitoring and services are considered to be promising because most of the participants were satisfied especially because somebody was caring their health. The decrease of blood pressures was significant by GAM and Multi-level Analysis. Thus, we can apply ubiquitous blood pressure management to health promotion projects.

• 한국도로학회논문집
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• 제12권4호
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• pp.165-174
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• 2010

본 연구는 조립식 콘크리트 포장 공법을 이용한 급속 도로 포장 보수 방법의 적용성을 분석하기 위하여 시험시공을 수행하고, 슬래브 접합 방식의 효과를 분석하기 위해 수행되었다. 시험시공은 줄눈콘크리트포장의 4개 슬래브를 교체하는 것으로 하였다. 시험시공을 위해 프리캐스트 슬래브를 설계하고 제작한 후, 기존 슬래브를 커팅하여 제거한 후 이 곳에 제작한 슬래브를 안착시켰다. 그 후 평탄성을 조절한 후 포켓 및 홀 부분과 슬래브 하부의 공간을 그라우팅 함으로써 시공을 신속 용이하게 수행할 수 있었다. 시험 시공을 수행하며 보수용 프리캐스트 포장의 설계 및 시공과 관련된 세부 사항을 면밀히 분석하였다. 또한 슬래브 간의 연결을 위한 방식으로 포켓과 홀 접합 방식을 모두 적용해 보았으며 실험을 통해 두 접합 방식에서의 슬래브의 컬링 거동을 비교하였다. 연구 결과 두 방식 모두 적용성이 우수했으나, 홀 접합 방식이 보다 적절한 것으로 파악되었다.

• 한국구조물진단유지관리공학회 논문집
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• 제25권6호
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• pp.1-11
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• 2021

국내 대형 SOC 시설물의 노후화가 가속화됨에 따라 시설물 유지관리도 현재 상태 기준의 안전성 평가에서 미래 노후도 수준 예측을 기반으로 한 성능 중심의 예방적·선제적 유지 관리로 전환되고 있다. 특히, 교량의 경우 1·2종 교량은 많은 연구와 함께체계적으로 관리되고 있으나, 중소형 3종 교량은 사용 연한 동안 성능저하를 대변하는 이력 데이터 수집과 활용은 전무한 실정이다. 따라서 본 연구에서는 부재별 외관 손상에 대해 생애주기별 유지관리 이력을 3차원 교량 객체에 등록함으로써 손상 위치의 손상변화율 등을 직관적으로 확인 할 수 있고, API 기반 종합성능평가가 가능하도록 3D 교량모델 기반의 실증 DB시스템을 설계하여 개발하였다.

• 터널과지하공간
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• 제34권4호
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• pp.249-266
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• 2024

벤토나이트 완충재는 공학적방벽재 중 하나로 고준위방사성폐기물의 안전한 처분을 위해 매우 중요한 기능을 수행한다. 특정 지하수 조건에 의해 벤토나이트에 침식 혹은 파이핑 현상이 발생할 수 있으며, 이는 공학적방벽의 전반적인 안전성에 영향을 미친다. 이와 관련된 국내 선행 연구는 모두 실험실 규모에서 수행되었기 때문에, 그 결과의 유용함에도 불구하고 일정 부분 한계를 지닌다. 따라서 한국원자력연구원은 BEPT(Bentonite Erosion and Piping Test)를 계획하여 현장 조건으로의 확장 및 실증 연구를 수행할 계획이다. 자세한 실험 설계에 앞서, 처분 관련 기술 선도국에서 수행된 선행 연구를 수집하여 분석하였다. 적합 실험 부지, 시스템 설계 등을 분석하여 BEPT 상세 설계 시 반영하였다. 본 기술보고는 조사한 해외 사례와 함께 현재 진행 중인 BEPT 실험 현황을 소개하기 위해 작성되었다.

• 한국지열·수열에너지학회논문집
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• 제3권2호
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• pp.25-30
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• 2007

The final energy consumption in the building sector in Korea represents almost 20% of the total energy consumption. Besides, Space heating and hot water generation in Korea are based on fossil fuels, with a serious environmental impact. This study describes thermal performance of heating demonstration system using close-loop ground source heat pump installed at Korean minjok leadership academy. The results of the experimental study, it retrieve the investment cost for 3years 8months and reduction amount of $CO_2$are 293,900 $kgCO_2$.

• 한국디지털건축인테리어학회논문집
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• 제8권2호
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• pp.47-56
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• 2008

The purpose of this study is to arrange the design elements and methods for sustainable community. After made the concept of sustainable community clear in the contemporary architecture and urban design, this study examines rural ecovillage, urban demonstration project, co-housing, new urbanism and urban village, and ecological township as the application modes of sustainable community. Through the cases of the application mode, the design elements for sustainable community were summarized as the followings: the symbiosis system with the nature, permaculture and edible landscape, identity, the technology for saving of resources and energy, the traffic system for the reduction of private motor use, mixed use development, and the housing with diversity. And the design methods for sustainable community were summarized as the followings: strategic planning, visioning, community action planning, workshops and charrette, environmental evaluation, and participation techniques.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2004년도 춘계학술대회 논문집
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• pp.206-212
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• 2004

This paper is application of System Assurance(SA) for the rolling stock. As railway systems become more complex, design teams are increasingly under pressure to deliver, design solutions, which integrate both technical and Systems Assurance(SA). Systems Assurance is the application of management methods and analysis techniques to ensure that a design meets Reliability, Availability, Maintainability and Safety (RAMS) criteria. It should be clearly understood that the intent of System Assurance is not just to provide analytical techniques as a metric on performance, but more importantly it should provide a management tool with which to co-ordinate and assure the whole design. System Assurance encompasses the ongoing requirement to consider safety, and RAM through each stage of a Project, from feasibility study through to commissioning and operation. If System Assurance is undertaken properly at feasibility study at the design stages of a Project, the benefits of such analyses can be significant in identifying potential problems early enough for action to be taken before manufacture or installation. At commissioning, RAMS demonstration activities are undertaken to validate the predictive and analytical techniques undertaken during the design.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2006년도 춘계학술대회논문집
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• pp.203-206
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• 2006

In this study, the method of designing the flexible wing model which will be used for wind tunnel testing of gust response alleviation system was presented. The design concept proposed herein was validated by performing the modal testing of the flexible wing model manufactured for demonstration purpose. In addition, the study on the gust response alleviation using flexible wing control surface was performed. For this purpose, optimal control with output feedback was adopted for designing the control surface controller, and the effects of gust response alleviation was validated by performing the numerical simulation for the representative flexible wing model. The methods proposed and validated in this study can be applied for wind tunnel testing of the flexible wing for gust response alleviation.