• 제목/요약/키워드: performance enhancement

검색결과 2,937건 처리시간 0.034초

Disturbance Observer Design for Track-following Control in Optical Disk Drive using Structured Singular Value

  • Ryoo, Jung-Rae;Chung, Myung-Jin;Doh, Tae-Yong
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2002년도 ICCAS
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    • pp.83.6-83
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    • 2002
  • $\textbullet$ Disturbance observer $\textbullet$ Performance enhancement $\textbullet$ LFT formulation $\textbullet$ Structured singular value $\textbullet$ Maximum bandwidth of DOB $\textbullet$ DVD experiments $\textbullet$ Robust stable disturbance observer

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패치 안테나의 성능 향상을 위한 PBG 구조 설계 (Design of PBG Structures for Performance Enhancement of Patch Antennas)

  • 서지영;이범선
    • 한국전자파학회:학술대회논문집
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    • 한국전자파학회 2002년도 종합학술발표회 논문집 Vol.12 No.1
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    • pp.255-258
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    • 2002
  • 본 논문에서는 EM 시뮬레이션을 이용하여 PCS 대역을 저지하는 PBG 구조를 설계하고, 설계된 PBG 구조를 패치 안테나 주변에 삽입함으로써 표면파가 억제되는 것을 방사패턴을 통해 확인하였다. 이러한 PBG 구조를 표면으로 이용했을 때 wire 안테나의 반사손실이 향상되는 결과를 확인하였다.

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Redox Reaction Investigation of Graphene Nanoribbon

  • Yu, Young-Jun
    • Applied Science and Convergence Technology
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    • 제27권2호
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    • pp.35-37
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    • 2018
  • The redox reaction on graphene nanoribbon (GNR) field effect transistors(FET) has been studied. In detail, upon employing an electrolyte gating, we verified electron transport performance modulation of GNR FET by monitoring conductance variation under oxidation and reduction processes. The conductance enhancement of GNR via removal of PMMA residue on graphene surface during redox cycles was also observed.

Effect of temperature gradient on junction magnetoresistance of magnetic tunnel junction devices

  • 노성철;박민규;이여름
    • EDISON SW 활용 경진대회 논문집
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    • 제3회(2014년)
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    • pp.495-497
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    • 2014
  • Combining the quantum transport theory with new field of Spin Caloritronics, we investigate on the influence of thermal gradient on the magneto tunnel junction structure under various circumstances. The results indicate enhancement in performance of spintronic device is possible using thermal energy.

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