• 제목/요약/키워드: GEE

검색결과 2,030건 처리시간 0.038초

Synthesis of Pyrrolo[2,3-b]quinolines by Palladium-catalyzed Heteroannulation

  • Gee, Moon-Bae;Lee, Won-Jung;Yum, Eul-Kgun
    • Bulletin of the Korean Chemical Society
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    • 제24권8호
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    • pp.1193-1196
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    • 2003
  • Palladium-catalyzed heteroannulation of 2-amino-3-iodoquinoline derivatives and 1-trimethylsilyl internal alkynes provided highly regioselective pyrrolo[2,3-b]quinolines with trimethylsilyl group next to the nitrogen atom in the pyrrole ring.

FMS 에서 공정계획을 고려한 스케쥴링 (An integration of process planning and scheduling in FMS)

  • 정남기;기병성;주현준
    • 산업공학
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    • 제7권1호
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    • pp.59-66
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    • 1994
  • In scheduling open-field type FMS, process planning of decision making between alternate machines is taken into consideration. This idea is validated via implementing two experimental systems; One is a knowledge-based system and the other is to solve a Constraint Satisfaction Problem. The former generates some promising schedules in view of improving machine utilization, makespan and meanflow time, and the latter does in view of meeting due date.

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에폭시 수지의 전기적 열화현상에 따른 수명 예측 (Prediction of Lifetime according to AC Aging Phenomina in Epoxy Resin)

  • 임장섭;문수경;민용기;김태성
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1990년도 추계학술대회 논문집 학회본부
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    • pp.132-135
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    • 1990
  • This paper presents prediction of insulation lifetime in stress. Essentially, Epoxy resin, when it was subjected to different types of aging condition, produced to varieties of electrical properties and lifetime using spectroscopy and breakdown test. The relationships between the structural and electrical changes of aged epoxy were Investigated.

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AB급 증폭기를 위한 Envelope Detection을 이용한 바이어스 조정 (Bias Control for Linearizing Class AB Amplifier Using Envelope Detection)

  • 이희민;강상기;홍성용
    • 한국전자파학회:학술대회논문집
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    • 한국전자파학회 2005년도 종합학술발표회 논문집 Vol.15 No.1
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    • pp.97-100
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    • 2005
  • This paper proposes a linearization method that is to control the operating point of a class AB amplifier according to its output power. The proposed linearization method is presented in this paper and the performance test results using two-tone signal are presented also.

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