• 제목/요약/키워드: Performace

검색결과 127건 처리시간 0.025초

사무소 건축물의 화재안전 성능 평가모델 (Performance Assessment Model for Fire Safety Protection of Office Building)

  • 양은범;황영삼;이찬식
    • 한국안전학회지
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    • 제19권2호
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    • pp.69-74
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    • 2004
  • This study is to suggest a performance assessment model for fire safety protection of office building 34 asessment elements were chosen by interviewing with experts, reviewing several codes and existing relevant models, assessment elements included in this model are comprised of five categories which are 'performace of protected area', 'performance of fire partition', 'safety performance of fire escape', 'performace of smoke control system' and 'performace of fire fighting equipment'. The weight of each element was computed by systematic approach like an AHP (analytical hierarchy process), which was conducted by experts who work in the field of fire protection. This model would be utilized as a part of assessment model for the overall performace of domestic office building.

원심압축기의 설계 개발을 위한 CFD의 응용과 전망 (CFD Application for Design and Development of Centrifugal Compressors)

  • 강신형
    • 한국전산유체공학회:학술대회논문집
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    • 한국전산유체공학회 1995년도 추계 학술대회논문집
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    • pp.12-28
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    • 1995
  • CFD techniques are widely used for the design and development of turbomachinery. The design and performance prediction, evaluation of performace and analysis are all important for the successful development of the machinery. The characteristics of the sturcture and performace of the centrifugal compressor are reviewed for the effective application of CFD techniques. The examples of flow calculations through an impeller and a channel diffuser are presented and phenomenological aspects are discussed. The future research topics of CFD area are also suggested.

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속도오차 초기화를 이용한 관성항법장치 교정기법의 구현 (An implementation of INS calibration technique using the velocity initialization)

  • 박정화;김천중;신용진
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 1997년도 한국자동제어학술회의논문집; 한국전력공사 서울연수원; 17-18 Oct. 1997
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    • pp.1679-1683
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    • 1997
  • In this paper a linear Kalman filter for calibration of gimballed inertial navigation system(GINS) is designed and its performace is analyzed through the simulation with a real navigation data. Simulation results show that the proposed Kalman filter gives a good performance to calibrate the sensor errors.

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유니온 상한을 이용한 터보코드의 인터리버 설계 (Design of Turbo Code Interleaver Using Union Bound)

  • 안홍영
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2000년도 추계종합학술대회 논문집(1)
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    • pp.161-164
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    • 2000
  • Given the frame size and constituent encoders, interleaver plays a central role in a turbo code performance. Interleaver should be designed to generate a heavy weight codeword in the second encoder if the first encoder generates a low weight codeword. In this paper we present a search procedure for high performace interleaver whose performance is measured by computing union bound using the weight spectrum of all the weight 2, 3

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Adjustable-Performace, Single-Ended Input Double-Balanced Mixer

  • Choi, Jin-Yong;Lee, Kyung-Ho;Lee, Sang-Gug
    • JSTS:Journal of Semiconductor Technology and Science
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    • 제1권4호
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    • pp.248-252
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    • 2001
  • A noble single-ended input, double-balanced mixer topology is proposed. The mixer incorporates the common-source amplifier input stage with inductive degeneration for impedance matching. The analysis based on simulations shows that the overall performance of the mixer is excellent and is adjustable by varying the input transistor size to give best characteristics for the given linearity specifications.

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퍼지 논리를 사용한 Self-Validating 센서의 성능 개선 (Performace Improvement of Self-Validating Sensors Using Fuzzy Logic)

  • 나승유;배희종
    • 한국지능시스템학회:학술대회논문집
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    • 한국퍼지및지능시스템학회 2000년도 추계학술대회 학술발표 논문집
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    • pp.349-352
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    • 2000
  • In case of sensor faults, they can be detected by examining the sensor output values and the typical values of the system. And then the types of the faults are recognized by the analysis of symptoms of faults. If necessary self-validating sensor values are synthesized according to the types of faults, and then they are used for the controller instead of the raw data. In this paper, fuzzy logic is introduced in SEVA sensors to improve the system performance. And then the method is applied to the control of a flexible link system with the sensor fault problems for exact positioning to show the applicability.

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