• Title/Summary/Keyword: New distribution

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A Re-Configuration Genetic Algorithm for Distribution Systems (배전계통에서 유전적 알고리즘을 이용한 접속변경순서결정방법)

  • Choi, Dai-Seub
    • Proceedings of the KIEE Conference
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    • 2005.05b
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    • pp.62-63
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    • 2005
  • Recently, sectionalizing switches have been coming to be operated by remote control through the distribution SCADA system. However, the problem of determining the optimal switching sequence is a combinatorial optimization problem, and is quite difficult to solve, Hence, it is imperative to develop practically applicable solution algorithms create a new arbitral distribution system configuration from an initial configuration, and some of these algorithms do not show a load transfer sequence to reach the objective system.

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Minimizing Weighted Mean of Inefficiency for Robust Designs

  • Seo, Han-Son
    • Communications for Statistical Applications and Methods
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    • v.15 no.1
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    • pp.95-104
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    • 2008
  • This paper addresses issues of robustness in Bayesian optimal design. We may have difficulty applying Bayesian optimal design principles because of the uncertainty of prior distribution. When there are several plausible prior distributions and the efficiency of a design depends on the unknown prior distribution, robustness with respect to misspecification of prior distribution is required. We suggest a new optimal design criterion which has relatively high efficiencies across the class of plausible prior distributions. The criterion is applied to the problem of estimating the turning point of a quadratic regression, and both analytic and numerical results are shown to demonstrate its robustness.

Species Diversity of Hypogeous Ascomycetes in Israel

  • Barseghyan, Gayane S.;Wasser, Solomon P.
    • Mycobiology
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    • v.38 no.3
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    • pp.159-165
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    • 2010
  • We conducted a species diversity study of the hypogeous Ascomycetes of Israel. The hypogeous Ascomycetes in Israel include members of the families Pyronemataceae, Pezizaceae, and Tuberaceae, which are represented by seven species: Hydnocystis piligera, Terfezia arenaria, T. claveryi, T. oligosperma, Tirmania africana, Tuber asa, and T. nitidum; only T. asa is new to Israeli mycobiota. Synonymy, locations, collection data, general distribution, distribution in Israel, descriptions, a key to identification, illustrations, and taxonomic remarks are provided.

A Re-Configuration Genetic Algorithm for Distribution Systems (배전계통에서 유전적 알고리즘을 이용한 접속변경순서 결정방법)

  • Choi, Dai-Seub
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2004.11a
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    • pp.381-383
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    • 2004
  • Recently, sectionalizing switches have been coming to be operated by remote control through the distribution SCADA system. However, the problem of determining the optimal switching sequence is a combinatorial optimization problem, and is quite difficult to solve. Hence, it is imperative to develop practically applicable solution algorithms create a new arbitral distribution system configuration from an initial configuration, and some of these algorithms do not show a load transfer sequence to reach the objective system.

  • PDF

A Re-Configuration Genetic Algorithm for Distribution Systems (배전계통에서 유전적 알고리즘을 이용한 접속변경순서결정방법)

  • Choi, Dai-Seub
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2005.05a
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    • pp.418-420
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    • 2005
  • Recently, sectionalizing switches have been coming to be operated by remote control through the distribution SCADA system. However, the problem of determining the optimal switching sequence is a combinatorial optimization problem, and is quite difficult In solve. Hence, it is imperative to develop practically applicable solution algorithms create a new arbitral distribution system configuration from an initial configuration and some of these algorithms do not show a load transfer sequence to reach the objective system.

  • PDF

Generalized Multicommodity Distribution System Design

  • Chen, Ju-Long;Morris, James-G.;Son, Ki-Hyoung
    • Management Science and Financial Engineering
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    • v.5 no.2
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    • pp.25-41
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    • 1999
  • This paper generalizes the classic two-stage multicommodity distribution system design problem to the one that includes plant locations as well as distribution center locations. Accommodating plant location leads to subproblems which are mixed are mixed integer. Hence. no LP-type subproblems are avail-able, and therefore standard Benders decomposition no longer applies. We develop new solution method which combines an integer L-shaped method with Benders decomposition to suit the purpose, and pre-sent the test results.

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Study for importing and exporting database in Distribution Automation System (NDIS와 배전자동화시스템 연계방안에 관한 연구)

  • Cho, Nam-Hun;Ha, Bok-Nam;Lim, Seong-Il;Kang, Moon-Ho
    • Proceedings of the KIEE Conference
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    • 2000.07a
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    • pp.489-491
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    • 2000
  • A DAS(Distribution Automation System) enhances the efficiency and productivity of a utility. It also provides intangible benefits such as improved public image and market adventages. This paper discusses an approach to the integration of NDIS(New Distribution Information System) and DAS that will allow benefits from both technologies to support a common database and distributed computing architecture, thereby improving the ability of many functions to justify implementation of integrated systems based on transferring' data comparisons.

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Generalized Weighted Linear Models Based on Distribution Functions

  • Yeo, In-Kwon
    • Proceedings of the Korean Statistical Society Conference
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    • 2003.10a
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    • pp.161-166
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    • 2003
  • In this paper, a new form of generalized linear models is proposed. The proposed models consist of a distribution function of the mean response and a weighted linear combination of distribution functions of covariates. This form addresses a structural problem of the link function in the generalized linear models. Markov chain Monte Carlo methods are used to estimate the parameters within a Bayesian framework.

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Trends in Polymer Separations: Better and More Information on Polymer Distributions

  • Schoenmakers, Peter
    • Proceedings of the Polymer Society of Korea Conference
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    • 2006.10a
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    • pp.113-113
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    • 2006
  • Polymer separations are used to obtain information on molecular distributions (molecular-weight distribution, chemical-composition distribution, functionality-type distribution, etc.). The existing methods, such as size-exclusion chromatography are reliable, but imperfect. New methods and improvements to existing methods are being studied and some of the results will be discussed. In addition, comprehensive two-dimensional liquid chromatography allows the complete characterization of two mutually dependent distributions. LCxSEC chromatograms provide a very good qualitative impression of the distributions, but calibration is not straightforward. Finally, progress in mass spectrometry allows much better information to be obtained.

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Decision of the Margin of the Sustain Voltage Based on the Wall-Charge Distribution (AC PDP의 벽전하 분포를 이용한 유지 펄스의 전압 마진 결정)

  • 하영석;권오경
    • Proceedings of the IEEK Conference
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    • 2000.06e
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    • pp.77-80
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    • 2000
  • This paper describes a new method to decide the margin for the sustain voltage of AC PDPs based on the wall-charge distribution. We model the discharge cell and measure the wall-charge when sustain pulses are applied to the AC PDP. The measured wall-charge distribution informs us of the voltage forming the maximum wall-charge which should be chosen as the sustain voltage.

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