• 제목/요약/키워드: 순열

검색결과 395건 처리시간 0.039초

IEC 61850 프로토콜을 적용한 송전선 보호 IED 정정 (Transmission Line Protection IED Setting Using IEC 61850 Protocol)

  • 고철진;이승구;류기찬;강상희;남순열
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2005년도 추계학술대회 논문집 전력기술부문
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    • pp.301-303
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    • 2005
  • IEC 61850 is an international standard for substation communications. It introduces function that provide a substation with autonomous behavior of IEDs. The paper presents the model which is for change and modification of the IED setting values with analyzing IEC 61850.

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순열 flowshop 스케줄링에서의 평균 flowtime 최소화를 위한 경험적 알고리듬 (A heuristic algorithm for mean flowtime minimization in permutation flowshop scheduling)

  • 우훈식;임동순;이완규
    • 대한산업공학회지
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    • 제22권1호
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    • pp.115-127
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    • 1996
  • Based on a job insertion method, we developed a heuristic algorithm for the mean flowtime objective in a permutation flowshop environment. The simulation experiments are implemented to evaluate the effectiveness of the proposed algorithm against the existing heuristics. The experiments reveal the superiority of the proposed algorithm to other heuristics especially when the ratio of the number of jobs and number of machines is greater than or equal to two.

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노화와 흡연에 따른 음성 변화의 측정 (Effects of Aging and Smoking on Acoustic Characteristics of Voice)

  • 남의철;남순열;이광선
    • 대한음성언어의학회:학술대회논문집
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    • 대한음성언어의학회 1996년도 제6회 학술대회 심포지움
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    • pp.75-75
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    • 1996
  • 노화와 흡연에 따른 음성의 변화에 대하여 객관적인 음향 지표들을 측정함으로써, 노화와 흡연에 따른 정상적인 음성의 변화와 질병에 기인한 변화를 감별하는 지표를 제시하고자 본 연구를 시행하였다. 정상의 발성기관과 청력을 가진 20세 이상의 성인으로, 60세 이상군과 35세 이하군으로 남녀 각각 30명을 대상으로 CSL50-MDVP(Computerized Speech Lab50-Multidimensional voice program)을 이용하여 기본 주파수(Fundamental frequency), jitter, shimmer, NHR(Noise to harmonic ratio)을 측정하였다. (중략)

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주파수 변화 추정 알고리즘 비교분석 (Comparative Analysis for the Frequency Estimation Algorithms)

  • 김철훈;강상희;남순열;김수환
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2006년도 제37회 하계학술대회 논문집 B
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    • pp.1233-1234
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    • 2006
  • Reliable frequency estimation is important for active power control, load shedding and generator protection. Thereby, frequency estimation is researched and some algorithms is proposed. This paper analyzed strength and weakness of each algorithms through comparative analysis of frequency estimation. Used algorithms are Zero Crossing detection, Discrete Fourier Transformation, Least Error Squares.

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후두 선암종 1례 (A case of Adenocarcinoma of the Larynx)

  • 이윤식;남순열
    • 대한기관식도과학회지
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    • 제4권2호
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    • pp.258-261
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    • 1998
  • Most laryngeal carcinomas are squamous cell carcinomas. Adenocarcinoma of the larynx is rare, its incidence has been reported less than 1% of all laryngeal neoplasms. Adenocarcinoma arises from glandular structures of the larynx and usually arises from the supraglottis. Compared to other carcinoma, deep biopsy and aggressive treatment is manditory. We report a case of adenocarcinoma of the larynx with review of current literatures.

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