• Title/Summary/Keyword: 이남호

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Efficient Synthesis of Benzoprostacyclins Using Free-Radical and Palladium-Catalyzed Tandem Alkene Insertion Strategies

  • Lee, Nam Ho;Richard C. Larock
    • Bulletin of the Korean Chemical Society
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    • v.22 no.8
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    • pp.857-866
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    • 2001
  • Efficient syntheses of PGI2 analogue 2a and its epimer 3 have been accomplished. Using aryl iodide 6 as the common intermediate, either radical or palladium-assisted tandem alkene insertion strategies have been employed for construction of the benzoprostacyclin framework.

Asymmetric Synthesis of 12-epi-$PGF_{2α}$ by a Palladium-Mediated, Three-Component Coupling Reaction

  • 이남호;Richard C. Larock
    • Bulletin of the Korean Chemical Society
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    • v.16 no.9
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    • pp.859-863
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    • 1995
  • The prostaglandin analogue 12-epi-PGF2α (2) has been synthesized from optically active cis-4-t-butyldimethylsilyloxy-2-cyclopenten-1-ol (4b) in 4 steps in an overall yield of 21%. An extremely efficient Pd(Ⅱ)-mediated, three-component coupling reaction is employed to obtain the key intermediate 9.

Development of parallax-barrier autostereoscopic display (Parallax-barrier방식 입체영상 디스플레이 개발)

  • 이용범;이남호;안상호
    • 제어로봇시스템학회:학술대회논문집
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    • 1997.10a
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    • pp.1880-1883
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    • 1997
  • An Parallax-Barrier type autostereoscopic display system is implemented to overcome the handicap of current glass-typed stereo imaging system which gives operators unnatural feeling and reluctance. This system is composed of image mixing part of two input images, A/D transformation part, scan conversion part to eliminate the rainbow interference phenomenon, and pin-hole type barrier lens. For the fine display the accurate slit width of barrier is calculated in consideration of retina size, and the samsung 10.4" TFT-LCO was used as flat display monitor.itor.

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Design of Conformance Test Manager Program for Client based on IEC 61850 (IEC 61850 기반의 클라이언트 적합성 테스트 관리 프로그램 설계)

  • Park, Min-Woo;Yang, Hyo-Sig;Jang, Byung-Tae;Lee, Nam-Ho;Jang, Hyuk-Soo
    • Proceedings of the KIEE Conference
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    • 2008.11a
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    • pp.276-278
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    • 2008
  • IEC 61850 기반의 클라이언트의 적합성 검사를 시행할 방법이 아직 체계적으로 정립되어 있지 않다. 이에 본 논문에서는 클라이언트의 적합성 검사를 위한 관리 프로그램의 구현을 위해 소프트웨어 개발 방법론을 적용하여 설계하고 이에 대한 자세한 내용을 다룬다.

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Study on the performance verification of IEC 61850 communication service on domestic IEDs (국내 IED 시작품대상 IEC 61850 통신서비스 성능 검증에 관한 연구)

  • Lee, N.H;Jang, B.T.
    • Proceedings of the KIEE Conference
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    • 2008.11a
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    • pp.3-5
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    • 2008
  • Korea Electric Power Research Institute has being carried out an IEC 61580 based communication service test on domestic IED trial products developed related to power IT project. This paper describes IEC 61850-10 conformance test and testing items established by UCA international Users Group and this study is on the analysis of testing results from IED communication service with selected testing blocks, which consist of Basic association, Dataset, Reporting and GOOSE.

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A Study of Substation Automation System Testing based on PICOM (PICOM에 따른 변전소 자동화 시스템 검사 연구)

  • Song, Un-Sig;Yang, Hyo-Sik;Kim, Sang-Sig;Park, Min-Woo;Jang, Byung-Tae;Lee, Nam-Ho;Jang, Hyuk-Soo
    • Proceedings of the KIEE Conference
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    • 2007.11b
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    • pp.190-192
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    • 2007
  • PICOM (Piece of Information for COMmunication)은 논리노드 간에 교환되는 정보를 기술하기 위하여 정의되어 있다. 변전소의 기능은 여러 논리노드로 분할되어 서로 상호작용하며 동작한다. 변전소 자동화 시스템 검사는 단일 IED만의 기능 시험이 아니며 IED들간에 메시지를 교환을 통하여 변전소 기능을 정의된 성능을 만족하며 수행하는지 검사하는 것이다.

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