• 제목/요약/키워드: Analyzing

검색결과 28,522건 처리시간 0.054초

예방정비 체제하에서의 공정별 고장시간 간격분석

  • 김창현;김종한
    • 산업공학
    • /
    • 제4권2호
    • /
    • pp.35-42
    • /
    • 1991
  • Many authors derived MTTF/MTBF for an operating system by analyzing its actual life time data. However, it is difficult to derive MTTF/MTBF when few breakdowns accur throughout a year. In this paper, we address a new approach to solve that problem under a preventive maintenance policy, in which few breakdowns occur, and also introduce a case study using the results obtained.

  • PDF

Fast Fourier Transform을 이용한 풍력발전의 출력 분석 (A Study on the Method for Analyzing Wind Power Outputs through Fast Fourier Transform(FFT))

  • 박범준;허진
    • 대한전기학회:학술대회논문집
    • /
    • 대한전기학회 2015년도 제46회 하계학술대회
    • /
    • pp.87-88
    • /
    • 2015
  • 본 논문에서는 제주풍력단지에 대한 측정 데이터(measured wind power outputs)를 기반으로 Fast Fourier Transform(FFT)을 실시하고, 이를 이용하여 각 풍력발전단지의 주파수 특성에 대해 분석해보고자 한다.

  • PDF

선박 충돌사고 재현 및 분석을 위한 시뮬레이터 구축

  • 박봉수;천대일
    • 한국항해항만학회:학술대회논문집
    • /
    • 한국항해항만학회 2000년도 제 25회 정기총회 및 추계학술발표회
    • /
    • pp.129-134
    • /
    • 2000
  • In this paper, we proposed a simulator for reconstructing and analyzing vessel collision accidents happened at sea and we verified validity of the system by applying it to some collision accidents. This system will offer us to advantage of time and human power by contributing to automation of judge's decision.

  • PDF

우리별 1호의 자세제어 시스템 (ATTITUDE DETERMINATION AND CONTROL SYSTEM OF KITSAT-1)

  • 이현우;김병진;박동조
    • Journal of Astronomy and Space Sciences
    • /
    • 제13권2호
    • /
    • pp.67-81
    • /
    • 1996
  • The attitude dynamics of KITSAT-1 are modeled including the gravity gradient stabilization method. We define the operation scenario during the initial attitude stabilization period by means of a magnetorquering control algorithm. The required constraints for the gravity gradient boom deployment are also examined. Attitude dynamics model and control laws are verified by analyzing in-orbit attitude sensor telemetry data.

  • PDF

『향약집성방(鄕藥集成方)』과 『의림촬요(醫林撮要)』의 비교고찰(比較考察) (The Comparative Study of 『Hyangyakjipseongbang』 and 『Euirimchyalyo』)

  • 김홍균
    • 한국의사학회지
    • /
    • 제14권2호
    • /
    • pp.3-24
    • /
    • 2001
  • More correlations are expected to be formed by comparing and analyzing three medical prescription texts, "Hyangyakjipseongbang", "Euirimchyalyo" and "Dongeuibogam". And to firmly systemize the medicine native to Korea, more studies should be done on it, added to comparatively studies of native medical prescription texts.

  • PDF

농어촌 전화사업의 기술적 지원에 관한 기초적 연구 (Technical support on rural electrification)

  • 박민호;지철근;박영문
    • 전기의세계
    • /
    • 제24권5호
    • /
    • pp.21-30
    • /
    • 1975
  • These studies aim to support technically the National Rural Electrification Program now in progress by analyzing several engineering problems in regard to the program and then suggesting some appropriate solutions or measures. The contents of these studies are divided into three categories; (1)optimized distribution systems for the rural electrification, (2)optimized rural illumination and (3)single-phase operation of three-phase motors.

  • PDF