• Title/Summary/Keyword: The Comparative Analysis

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Evaluating Online Biographical Databases in Korea: A Comparative Study (우리나라 온라인 인물데이터베이스의 비교 평가 연구)

  • 장혜란
    • Journal of Korean Library and Information Science Society
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    • v.32 no.4
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    • pp.283-302
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    • 2001
  • Current states of Korean biographical databases are evaluated based on the dissatis faction factors identified by a user survey. currency, coverage, completeness, and variety of the Korean biographical databases are evaluated and compared with overseas biographical databases. The results of the analysis are given with problems and suggestions for the future improvements.

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A Comparative Study on Anti-windup Schemes for PID Control Systems (PID제어계를 위한 누적방지기법의 비교)

  • 류지수;허학범;박태건;이기상
    • 제어로봇시스템학회:학술대회논문집
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    • 2000.10a
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    • pp.127-127
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    • 2000
  • The anti-windup schemes developed so far are summarized and the similarities/differences schemes are discussed. The anti-windup schemes are applied to a DC servomotor control system with PID controller to perform comparative study and sensitivity analysis. Based on those results, some criteria for choosing anti-windup scheme are suggested. The results of this study provide a very useful guideline for selecting and designing the anti-windup scheme for various types of PID control systems.

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COMPARATIVE GROWTH ANALYSIS OF DIFFERENTIAL MONOMIALS AND DIFFERENTIAL POLYNOMIALS DEPENDING ON THEIR RELATIVE pL* - ORDERS

  • Biswas, Tanmay
    • Journal of the Chungcheong Mathematical Society
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    • v.31 no.1
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    • pp.103-130
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    • 2018
  • In the paper we establish some new results depending on the comparative growth properties of composite entire and meromorphic functions using relative $_pL^*-order$, relative $_pL^*-lower$ order and differential monomials, differential polynomials generated by one of the factors.

The 3-D QSAR study of antitumor arylsulfonylimidazolidinone derivatives by CoMFA and COMSIA

  • ParkChoo, Hea-Young;Choi, Su-Young;Jung, Sang-Hun
    • Proceedings of the PSK Conference
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    • 2002.10a
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    • pp.357.1-357.1
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    • 2002
  • Three-dimensional quantitative activity relationship (3D-QSAR) study for a series of arylsulfonylimidazolidinone derivatives with antitumor activity was conducted using comparative molecular field analysis (CoMFA) and comparative molecular similarity indices anaysis (CoMSIA). The in vitro cytotoxicity against human lung carcinoma (A549) exhibited a strong correlation with steric and electrostatic factors of the molecules. (omitted)

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The Basic of Comparative Analysis on Characteristic of MW Photovoltaic Power System on Wide Area (광역별 MW급 태양광발전시스템의 발전량 특성 비교분석 기초(I))

  • Park, Seok-Gi;Kim, Dong-Gyun;Choy, Ick;Choi, Ju-Yeop;Yu, Gwon-Jong
    • Proceedings of the KIPE Conference
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    • 2016.07a
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    • pp.475-476
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    • 2016
  • According to government supporting a renewable generation, a number of industrial MW photovoltaic systems have already been installed and rapidly increased. Even though the supporting is increased, analysis on power valuation and roll of a photovoltaic system are insufficient. In this paper, comparative analysis on characteristic of photovoltaic power system are illustrated as basic of power valuation by collecting power and irradiation data from MW photovoltaic system on wide area.

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Comparative Analysis on Lifetime of Fluorescent Induction Lamp (무전극 형광램프의 수명 비교 분석)

  • Jeon, Sang-Kyoo;Cho, Mee-Ryoung;Choi, Suk-Joon;Rho, Jae-Yeop;Lee, Se-Hyun;Shin, Sang-Wuk;Hwang, Myung-Keun;Lee, Do-Young;Yang, Seong-Yong
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2008.05a
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    • pp.202-204
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    • 2008
  • This paper gives a comparative analysis on lifetime of the fluorescent induction lamp. We have treasured and analysed optical characteristics of circular type fluorescent induction lamps, which has A and B types, to estimate lifetime. In the result of analysis on lifetime, $B_{10}$ lifetime of A and B type lamps are 466 hours and 1,595 hours, respectively.

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A Study of Rail Wear by Change of Acceleration and Deceleration (가속도/감속도 변화율에 따른 레일마모 현상에 관한 연구)

  • Ha, Kwan-Yong;Kim, Hie-Sik
    • Journal of the Korean Society for Railway
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    • v.10 no.5
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    • pp.607-612
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    • 2007
  • In this paper, operation mode of train was divided into powering, coasting, and braking and rail wear phenomenon has been done comparative analysis by each section. Data of train velocity is transferred to acceleration and deceleration from ATO Logging data. Amount of rail wear has been done comparative analysis by traction force of acceleration and braking force of deceleration and a plan for management of track irregularity is come up with by the result of the analysis.

A Comparative Analysis of Korean and Central African Construction Laborers Job Consciousness

  • Bulunda, Mbale Michael;Bitamba, Bauma Frigeant;Jean, jihoon;An, Sung-Hoon
    • International conference on construction engineering and project management
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    • 2015.10a
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    • pp.748-749
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    • 2015
  • Recently Korean construction companies have started launching into the world beyond the Middle East to Southeast Asia. Launching into Central Africa has emerged as the blue chips; therefore, it is needed to study the local people and culture of Central Africa. However, launching Korean construction companies into Central Africa may cause some problems between Korean and African construction laborers' thinking. Therefore this comparative analysis of Korean and Central African construction laborers' job consciousness can provide to Korean companies a minimum understanding of these kinds of problems to expect while launching into Central Africa and so using this analysis as a basic data to supply them.

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Comparative Study on the Radiation Techniques for the Problem of Floating Body Motion with Forward Speed (전진 속도를 가지는 부유체 운동 문제에 대한 방사기법 비교 연구)

  • Oh, Seunghoon
    • Journal of the Society of Naval Architects of Korea
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    • v.56 no.5
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    • pp.396-409
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    • 2019
  • In this paper, a comparative study on the radiation techniques for the motion analysis of the three dimensional floating structure with the forward speed was carried out. The Sommerfeld radiation condition, the damping technique, and the point shift technique were used for the comparative study. Radiated wave patterns and hydrodynamic coefficients of the heave motion of floating structure with the forward speed were compared and analyzed. The characteristics and limitations of each radiation technique were analyzed through the calculation results. To overcome the limitations of conventional radiation techniques, the hybrid radiation technique combining the Sommerfeld radiation condition with the damping technique was proposed. It is confirmed that the proposed method, the Hybrid radiation technique, improves the limitation of the speed range and the dissipation of the wave of the conventional radiation technique. The motion analysis code of the three dimensional floating structure with the forward speed based on the Rankine source method with hybrid radiation technique was developed. In order to validate the developed code, hydrodynamic analyses were carried and compared with published experiments.

Multi-criteria Comparative Evaluation of Nuclear Energy Deployment Scenarios With Thermal and Fast Reactors

  • Andrianov, A.A.;Andrianova, O.N.;Kuptsov, I.S.;Svetlichny, L.I.;Utianskaya, T.V.
    • Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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    • v.17 no.1
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    • pp.47-58
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    • 2019
  • The paper presents the results of a multi-criteria comparative evaluation of 12 feasible Russian nuclear energy deployment scenarios with thermal and fast reactors in a closed nuclear fuel cycle. The comparative evaluation was performed based on 6 performance indicators and 5 different MCDA methods (Simple Scoring Model, MAVT / MAUT, AHP, TOPSIS, PROMETHEE) in accordance with the recommendations elaborated by the IAEA/INPRO section. It is shown that the use of different MCDA methods to compare the nuclear energy deployment scenarios, despite some differences in the rankings, leads to well-coordinated and similar results. Taking into account the uncertainties in the weights within a multi-attribute model, it was possible to rank the scenarios in the absence of information regarding the relative importance of performance indicators and determine the preference probability for a certain nuclear energy deployment scenario. Based on the results of the uncertainty/sensitivity analysis and additional analysis of alternatives as well as the whole set of graphical and attribute data, it was possible to identify the most promising nuclear energy deployment scenario under the assumptions made.