• Title/Summary/Keyword: Techniques

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FIRST ORDER GRADIENT OPTIMIZATION IN LISP

  • Stanimirovic, Predrag;Rancic, Svetozar
    • Journal of applied mathematics & informatics
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    • v.5 no.3
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    • pp.701-716
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    • 1998
  • In this paper we develop algorithms in programming lan-guage SCHEME for implementation of the main first order gradient techniques for unconstrained optimization. Implementation of the de-scent techniques which use non-optimal descent steps as well as imple-mentation of the optimal descent techniques are described. Also we investigate implementation of the global problem called optimization along a line. Developed programs are effective and simpler with re-spect to the corresponding in the procedural programming languages. Several numerical examples are reported.

NMR Techniques for the Structure Elucidation and Conformational Analysis of Natural Products

  • Cordell, Geoffrey A.
    • Korean Journal of Pharmacognosy
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    • v.19 no.3
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    • pp.153-169
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    • 1988
  • The combined use of the J-modulated selective INEPT and CSCM 1DNMR techniques is described for the structure elucidation of several new classes of compound including prionitin, the loureirins and larreantin, and for the regiosubstitution of the furanonaphthoquinones. Spectroscopic studies on the conformation of the cytotoxic agent savinin are also described, together with the NMR assignments and preliminary biosynthetic experiments on the antitumor antibiotic staurosporine.

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Analytical Techniques For Use With Frame Photography (일반(一般) 카메라에 의한 위치결정의 해석적(解析的) 기법(技法)에 관한 연구)

  • Yang, In-Tae
    • Journal of Industrial Technology
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    • v.5
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    • pp.3-7
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    • 1985
  • Analytical techniques for use with reconnaissance frame photographs are outlined. The first approach is a point-by-point space resection in which the dynamic properties of the camera are taken into account. In the second approach appropriate parameters are added to correct for image distoritions, caused by the focal plane shutter, during the space resection phase. Test results showed that the analytical techniques developed will significantly improve the planimetric and height accuracy obtained by conventional methods.

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On the loop-shaping techniques for the LQG/LTR control (LQG/LTR 제어를 위한 루프형성기법에 관한 연구)

  • 한성익;김종식
    • 제어로봇시스템학회:학술대회논문집
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    • 1992.10a
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    • pp.1028-1033
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    • 1992
  • Loop shaping techniques are developed for the LQG/LTR controller design of singular multivariable sytems. One approach is to use the mode form of plant and the other is to replace the eigenvalues at 0 by ones at .epsilon.(.rarw.0). These two concepts for the target filter loop design are applied to a flight autopilot. And it is shown that these techniques are effective ones for the desired loop-shaping of singular multivariable systems.

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A Study of The Useful of Techniques for The Organization Development (조직개발을 위한 기법의 유용성에 관한 연구)

  • 정수진;고종식
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.19 no.37
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    • pp.279-288
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    • 1996
  • The purpose of this study is to investigate the usefulness of organizational development techniques for the behavioral change of employees and to inform organizational developer useful information for decision making. The scope of this study be limited to the techniques for the individual behavioral change among the organizational development The methodology of this study used the questionaire, and the sampling objected to the white class of manufactures. To verify the hypothesis, statistical methods used are Regression Analysis, T-test, Chi- square.

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Velocity measurements in complex flows of non-Newtonian fluids

  • Muller, Susan J.
    • Korea-Australia Rheology Journal
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    • v.14 no.3
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    • pp.93-105
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    • 2002
  • Experimental methods for making quantitative measurements of velocity fields in non-Newtonian fluids are reviewed. Techniques based on light scattering spectroscopy - laser Doppler velocimetry and homodyne light scattering spectroscopy, techniques based on imaging the displacement of markers - including particle image velocimetry and molecular tagging velocimetry, and techniques based on nuclear magnetic resonance imaging are discussed. The special advantages and disadvantages of each method are summarized, and their applications to non-Newtonian flows are briefly reviewed. Example data from each technique are also included.

Environmental Survey Data Modeling using K-means Clustering Techniques

  • Park, Hee-Chang;Cho, Kwang-Hyun
    • 한국데이터정보과학회:학술대회논문집
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    • 2004.10a
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    • pp.77-86
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    • 2004
  • Clustering is the process of grouping the data into clusters so that objects within a cluster have high similarity in comparison to one another. In this paper we used k-means clustering of several clustering techniques. The k-means Clustering is classified as a partitional clustering method. We analyze 2002 Gyeongnam social indicator survey data using k-means clustering techniques for environmental information. We can use these outputs given by k-means clustering for environmental preservation and environmental improvement.

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Comparative study on the apical sealing ability according to the obturation technique

  • Park, Sun-Hee;Hwang, Ho-Keel
    • Proceedings of the KACD Conference
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    • 2001.11a
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    • pp.592.2-592
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    • 2001
  • The purpose of this study was to evaluate the efficiency of the four obturation techniques. In this study, eighty teeth were instrumented and randomly divided into 4 groups of 20 teeth each, according to the obturation techniques Group A was used with Microseal. in Group B, Thermafil. in Group C, continuous wave techniques, in Group D cold lateral condensation methods were used. After obturation, the teeth were taken a digital radiograph in mesiodistal and buccolingual directions to study the quality of the obturation.(omitted)

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Locality-Sensitive Hashing Techniques for Nearest Neighbor Search

  • Lee, Keon Myung
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • v.12 no.4
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    • pp.300-307
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    • 2012
  • When the volume of data grows big, some simple tasks could become a significant concern. Nearest neighbor search is such a task which finds from a data set the k nearest data points to queries. Locality-sensitive hashing techniques have been developed for approximate but fast nearest neighbor search. This paper introduces the notion of locality-sensitive hashing and surveys the locality-sensitive hashing techniques. It categories them based on several criteria, presents their characteristics, and compares their performance.

Application of Advanced Manufacturing Technologies to Polymer Lithium Ion (PLI) Bi Cell Production Electrode Preparation / Assembly / Lamination

  • Singleton Robert W.;Nelson Craig R.
    • 한국전기화학회:학술대회논문집
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    • 1999.11a
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    • pp.83-91
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    • 1999
  • Technical advances in manufacturing techniques and applied technologies have been made for bi cell manufacture, and are currently being implemented in the areas of discrete electrode / bi cell assembly, and electrode / separator lamination. Not only have improvements been noted in the reliability of the mechanical assembly and the increase in yields and decrease in costs, battery electrical performance has also been enhanced thru these assembly techniques. Evidence has been shown that the lamination techniques can influence porosity and electrolyte dispersion, and therefore electrical performance and long term reliability of the cells.

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