• 제목/요약/키워드: Green house

검색결과 963건 처리시간 0.05초

Rural Water Supply from the Irrigation Reservoir

  • 김대철;박성기
    • 한국농공학회지
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    • 제37권E호
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    • pp.47-54
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    • 1995
  • Irrigation water has been mainly used for paddy rice. Irrigated paddy land tends to be recently converted to land for green house, farm house, and rural-industrial complex. Consequently, demand of water for crops, domestic & industrial, rural recreations, small-scaled hydropower, livestocks, and environment in the rural area, so called rural water, is rapidly increasing. In order to supply rural water, water in the existing irrigation reservoir could be enlarged by repairment of irrigation canal and reinforcement of irrigation reservoir, and be saved by the operation rule curve, utilization of dead water, and balanced storage management.

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국내 에너지제로하우스 비교를 통한 요소기술 특성 및 표준 모델 제시에 관한 연구 (Suggestion of the Characteristics of Element Technology and the Standard Model through the Comparison of Domestic Zero-energy Houses)

  • 이충국;이정철;김상수;서승직
    • 한국지열·수열에너지학회논문집
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    • 제8권2호
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    • pp.27-35
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    • 2012
  • Five zero energy house models developed in Korea for the purpose of the energy performance were compared and analyzed in the study. The standard passive house model applying common technology and efficient energy performance elements was proposed. Standard passive house 5 models have been developed commonly aiming at 100% energy saving, applying high-performance and high-efficiency exterior thermal insulation, using 3 low-e coated window system, and targeting average 0.65 ACH to enhance privacy. Energy recovery ventilators and dry and cold radiant heating floor has been partially applied. Eco-design techniques such as the awning device, heat insulating door, using natural light have been used. Solar and geothermal systems as the application of renewable energy technologies have been commonly applied. And fuel cells were applied to a partial model. The standard model based on common technical elements and average performance of each element and obtained from five model analysis has been proposed in the study.

두릅나무 순의 Saponin에 관한 연구 (I) - Saponin 의 분리 및 함량 - (Studies on the Saponins in the Shoot of Aralia Elata (I) -Separation and Content of the Saponins-)

  • 이만정;김영희
    • 한국식생활문화학회지
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    • 제5권2호
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    • pp.235-241
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    • 1990
  • 두릅나무 Aralia elata순의 saponin을 분리하여 조사한 결과는 다음과 같다. 1. Saponin의 함량과 종류는 자연산이 온상산보다 많고, 가열에 의해서는 모두 감소하였으며, 잎이 자랄수록 그 함량은 증가하였다. 자연산 날것 식용적기(Nr2)의 총 saponin 종류는 37개였다. 2. 자연산의 saponin 패턴은 생육시기에 따라 변하였으며 날것 식용적기(Nr2)가 다른 것에 비해서 크게 달랐다. 그러나 가열 처리한 결과는 saponin 패턴이 변화되어 시기적 차가 줄었다. 온상산은 자연산에 비해 피크가 단순하고 시기별 차이는 적었지만 가열에 의한 패턴의 차도 적었다. 3. 자연산 날것 식용적기는 ‘b’ saponin이 특이하게 많았고 나머지에서는 ‘d’ saponin이 가장 많았다.

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