• 제목/요약/키워드: Plant Evaluation

검색결과 2,868건 처리시간 0.039초

원전 구조물의 고강도 철근 적용 기술개발 : 벽체의 성능평가 실험 (Development of Application Technology of High-Strength Reinforcing Bars for Nuclear Power Plant Structure : Performance Evaluation Test of the Wall)

  • 김석철;임상준;이병수;방창준
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2012년도 추계 학술논문 발표대회
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    • pp.201-202
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    • 2012
  • Recently, High-Strength steel reinforcement has been studied throughout the internal and external. One of the advantages using High-Strength steel reinforcement in construction is the economic effect due to the decreasing of its quantity. Also, another good effect is the increases of workability by reason of reducing the congestion. But, realistically it is not used in nuclear power plant construction site because of the restriction of design standard. The purpose of this report secures the reliability and changes the code through the performance evaluation test of the wall using the high-strength steel reinforcement in nuclear power plant.

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물시멘트비가 다른 원전 콘크리트의 염화물 침투저항성 비교평가 (Comparison and Evaluation of Chloride Penetration Resistance in Nuclear Power Plant Concrete with Different Water-to-Cement Ratios)

  • 손정진;김지현;정철우
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2023년도 봄 학술논문 발표대회
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    • pp.315-316
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    • 2023
  • In the present investigation, the chloride ion penetration resistance of nuclear power plant concrete with varying water-to-cement ratios was assessed. A comparative analysis was conducted on concretes that do not incorporate supplementary cementitious materials, such as fly ash, using permanently decommissioned nuclear structures as a reference. The objective is to employ this acquired data as a fundamental resource for the evaluation of the residual service life of nuclear power plant structures in subsequent studies.

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알팔파(Medicago sativa L.)의 원형질체로부터 다경 유도와 식물체의 구분화 (Induction of Multi Shoots and Plant Regeneration From Protoplasts of Alfalfa(Medicago sativa L.))

  • 김동명
    • Journal of Plant Biology
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    • 제32권4호
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    • pp.313-322
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    • 1989
  • A system was established for induction of multi-shoots and plant regeneration from mesophyll protoplasts of alfalfa, Medicago sativa L. cv. Vernal. Different hormonal effects were tested at each step of protoplast culture, i.e. cell division in modified Kao's liquid medium (K566-7). calli formation on SH semi solid medium, and multi-shoot regeneration from calli on SHa and SHb solid media. Frequency of multi-shoots and plant regeneration was affected by various combinations of phytohormones in final step. The evaluation of multi-shoots induction systems via protoplast culture was discused.

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Nanoparticles as Alternative Pesticides: Concept, Manufacturing and Activities

  • Ahmed, Ahmed I.S.;Lee, Youn Su
    • 한국균학회지
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    • 제43권4호
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    • pp.207-215
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    • 2015
  • Nanotechnology, which has become an important area of science, has caused an enormous developmental revolution in many fields. In the last two decades researchers have focused on overcoming the obstacles encountered during the preparation of nanoparticles. This article highlights the nanotechnology, along with a brief description of the manufacturing, concepts and activities of nanoparticles as alternative pesticides against plant pathogens, some methods for evaluation of nanoparticles against phytopathogens in vitro and in vivo, and explains the importance of some common nanoparticle types used in agricultural applications and plant pathology.

해양소수력발전소 튜블러 수차 성능평가를 위한 현장시험 (Field Test for Performance Evaluation of a Tubular Turbine in Marine Small Hydro Power Plant)

  • 황영호;이영호;최영도
    • Journal of Advanced Marine Engineering and Technology
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    • 제35권8호
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    • pp.1070-1077
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    • 2011
  • 본 연구는 해양소수력발전소에서의 튜블러 수차의 성능평가를 위한 현장시험 및 그 결과에 대한 내용을 포함하고 있다. 현장시험용 수차의 발전기 최소출력은 측정된 유효낙차, 출력 그리고 효율을 이용하여 검토되었다. 정격 및 최대 출력시험은 수차 설치현장의 조수간만의 차에 의한 영으로 인하여 동일한 실험조건을 확보할 수 없었기 때문에 모델시험에 의한 성능 데이터를 이용하여 환산된 값을 사용하였다. 현장시험에 의한 수차의 성능은 최소출력, 정격출력, 최대출력 운전점에서 보증출력 및 보증효율을 만족시키는 결과를 나타냄을 확인하였다.

Evaluation of Genetic Heterogeniety among the Corn Landraces Collected from Farmer's Field

  • Kim, In-Jong;Min, Hwang-Kee;Park, Jong-Yeol;Choi, Ik-Young;Kim, Nam-Soo
    • Plant Resources
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    • 제1권1호
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    • pp.26-32
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    • 1998
  • This paper describes the variations in eight agronomic traits in three unadapted local landraces and an inbred cultivar of corn. To compare the agronomic traits in field evaluation with molecular marker evaluation the genotypes of the plant introduction were also checked by 4 microsatellite-SSR loci. The variations of the eight agronomic traits were higher in the local landrades than in the inbred line. which was substantiated by the high genetic variation in the landrades with microsatellite-SSR loci. The level of genetic variation was also different between landraces. Since the genetic evaluation can be easily quantified by the analysis of microsatellite-SSR loci. the threshold level of genetic homogeneity in the population for parental lines in breeding program can be determined and the effort of maintaining the landrace population would be alleviated. As an example in our analysis. the entry from Whachon should not need the same number of selfing generations as the other two landraces to get the level of inbred state. Since this line showed lowest intra-genetic variation within the population.

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