• 제목/요약/키워드: Fusion research

검색결과 2,583건 처리시간 0.039초

ITER TF 초전도 도체 개발과 특성 (Development of ITER TF Cable-in-Conduit Conductors and Their Characteristics)

  • 김형찬;오동근;박수현;김기만
    • Progress in Superconductivity
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    • 제10권2호
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    • pp.108-115
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    • 2009
  • As a participant taking part in the ITER TF conductor R&D program, we developed two toroidal field conductors with variations of conduit thickness resulting in the different void fraction of the conductors. The estimated void fractions of the conductors are 31% and 33%. In this paper we present the details of the TF conductor development and performance test results of them carried out by the measurement of current sharing temperature under cyclic loading. Regarding the conductor development, the internal-Sn-processed $Nb_3Sn$ strand characteristics, strand cabling, twist pitch and characteristics of the conduit materials are presented. For the understanding of the conductor design and performance, the conductor test results are presented and the effect of the conductor design parameters such as void fraction and twist pitch is discussed based on the results.

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핵융합 기술 정보시스템 개발을 위한 원자 및 분자 데이터베이스 구축에 관한 연구 (The Study of Atomic & Molecular Database Structure for National Fusion Technology Information System Development)

  • 황성하;박준형;송미영;윤정식
    • 한국정보과학회:학술대회논문집
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    • 한국정보과학회 2012년도 한국컴퓨터종합학술대회논문집 Vol.39 No.1(C)
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    • pp.69-71
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    • 2012
  • 핵융합 실증로는 미래 에너지원 개발을 위한 대형 프로젝트로 한국형 핵융합 실증로 건설 및 핵융합 에너지 상용화 기술을 개발하는데 목표로 한다. 이를 위해 원자 및 분자 충돌을 통한 데이터는 물리적으로 화학적으로 기본을 이루고 있으며 우리가 주로 접하는 데이터들이다. 특히, 플라즈마 내에서 일어나는 입자(전자, 원자, 이온 분자) 등의 충돌에 따른 데이터를 물성데이터라 하며 이는 핵융합, 반도체 제작, 디스플레이 장치 등의 다양한 분야에 응용된다. 본 논문은 원자 및 분자에 대한 데이터를 수집 및 정제하고 이를 저장하고 관리하는 기술 정보시스템 개발을 위한 원자 및 분자 데이터베이스 구축을 위한 방법을 연구한다.

건설 분야 첨단융합기술 관련 연구 분석을 통한 각 국가별 관심 분야 비교 연구 (A Cross Country Comparative Study of Key Research Areas Through Analysis of Technology-Fusion Research in the Construction Industry)

  • 손효주;김태우;김창완;김형관;한승헌;김상범;김문겸
    • 한국전산구조공학회:학술대회논문집
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    • 한국전산구조공학회 2007년도 정기 학술대회 논문집
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    • pp.361-366
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    • 2007
  • This study reflects on the subjects of tile papers published by Journal of Automation in Construction, which has focused on such fusion-technology research areas in civil engineering as robotics and automation and observed a growing number of papers and extensiveness of participation during the 2000-2006 periods. This paper provides a current perspective on technology-fusion research in civil engineering, as reflected in the journal of Automation in Construction. Journal of Automation in Construction (AIC) is intended to be of interest of industry personnel, government personnel and researcher in Information Technology (IT) and Automation research in civil engineering. This paper is intended to show a cross country comparison of technology-fusion research through analysis of papers. The research results show that there is a need to increase research collaboration between industry and academia, government and academia, and industry and government to advance the construction industry.

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Expression and Characterization of a Novel Deoxyribose 5-Phosphate Aldolase from Paenibacillus sp. EA001

  • Kim, Yong-Mo;Choi, Nack-Shick;Kim, Yong-Ook;Son, Dong-Ho;Chang, Young-Hyo;Song, Jae-Jun;Kim, Joong-Su
    • Journal of Microbiology and Biotechnology
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    • 제20권6호
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    • pp.995-1000
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    • 2010
  • A novel deoC gene was identified from Paenibacillus sp. EA001 isolated from soil. The gene had an open reading frame (ORF) of 663 base pairs encoding a protein of 220 amino acids with a molecular mass of 24.5 kDa. The amino acid sequence was 79% identical to that of deoxyribose 5-phosphate aldolase (DERA) from Geobacillus sp. Y412MC10. The deoC gene encoding DERA was cloned into an expression vector and the protein was expressed in Escherichia coli. The recombinant DERA was purified using Ni-NTA affinity chromatography and then characterized. The optimum temperature and pH of the enzyme were $50^{\circ}C$ and 6.0, respectively. The specific activity for the substrate deoxyribose 5-phosphate (DR5P) was $62\;{\mu}mol/min/mg$. The $K_m$ value for DR5P was determined to be 145 mM with the $k_{cat}$ value of $3.2{\times}10^2/s$ from Lineweaver-Burk plots. The EA001 DERA showed stability toward a high concentration of acetaldehyde (100 mM).

ITER 사업의 삼중수소 연료주기 기술 (Tritium Fuel Cycle Technology of ITER Project)

  • 윤세훈;장민호;강현구;김창석;조승연;정기정;정흥석;송규민
    • 한국수소및신에너지학회논문집
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    • 제23권1호
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    • pp.56-64
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    • 2012
  • The ITER fuel cycle is designed for DT operation in equimolar ratio. It involves not only a group of fuelling system and torus cryo-pumping system of the exhaust gases through the divertor from the torus in tokamak plant, but also from the exhaust gas processing of the fusion effluent gas mixture connected to the hydrogen isotope separation in cryogenic distillation to the final safe storage & delivery of the hydrogen isotopes in tritium plant. Tritium plant system supplies deuterium and tritium from external sources and treats all tritiated fluids in ITER operation. Every operation and affairs is focused on the tritium inventory accountancy and the confinement. This paper describes the major fuel cycle processes and interfaces in the tritium plant in aspects of upcoming technologies for future hydrogen and/or hydrogen isotope utilization.