• 제목/요약/키워드: Korea Performance

검색결과 57,939건 처리시간 0.064초

역량스펙트럼법을 이용한 교량의 내진성능평가 (Evaluation of Seismic Performance for Bridge Structure Using Capacity Spectrum Method)

  • 이창수;김승익;김현겸
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 2000년도 가을 학술발표회논문집(I)
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    • pp.75-80
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    • 2000
  • Evaluation method of seismic performance has mainly used elastic spectrum analysis. This method has simplicity of analysis but deficiency of accuracy. And evaluation method of seismic performance using inelastic dynamic analysis reflects accurately inelasticity of material but hardly reflects site effects. This study suggested evaluation scheme of seismic performance for bridge structure using capacity spectrum method applied inelastic static analysis and standard design response spectrum of Korea Standard Specification for Highway Bridge. Two results, capacity spectrum method and inelastic dynamic analysis method, are very similar. As a result, this study appropriately supply both simplicity of analysis and accuracy of result.

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Proposed Performance Criteria and Evaluation Procedures for Transmission System Planning in Korea

  • Kook, Kyung-Soo;Kim, Taihyun;Oh, Tae-Kyoo;Bang, Min-Jae
    • KIEE International Transactions on Power Engineering
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    • 제2A권4호
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    • pp.160-165
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    • 2002
  • This paper describes a proposed performance criteria and evaluation procedures for transmission system planning in Korea. Performance criteria of the transmission system are expected to be used as a guideline for investment into a transmission network. Moreover, performance evaluation procedures, which are based on current practices and widely accepted theories, are suggested to achieve fair and acceptable results.

A Study of Performance Evaluation Modeling Method for The 3rd Generation Mobile Communication Network

  • Kim, Young-Joon;Jeong, Dong-Won;Baik, Doo-Kwon
    • 한국시뮬레이션학회:학술대회논문집
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    • 한국시뮬레이션학회 2001년도 The Seoul International Simulation Conference
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    • pp.136-140
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    • 2001
  • The 3rd generation mobile telecommunication fields are being standardized and developed in two parts, 3GPP and 3GPP2. These two parts have established each Network Architecture Models to achieve the goals basically required in the 3rd generation and to make it progress to IP network in the future. To achieve these goals many system architectures are proposed. Not only functional aspects but also performance aspects are considered as major factors. This paper proposes a new method of performance evaluation modeling and simulation that improved the existing way. The method proposed in this paper is Aspect oriented logical performance analysis Modeling and Simulation method. This proposed method is expected to improve efficiency of performance analysis modeling and simulation on the 3rd generation mobile telecommunication system.

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Performance Analysis of a Mixed-Flow Pump for Waterjet Propulsion

  • Ahn Jong-Woo;Kim Ki-Sup;Park Young-Ha;Kim Kyung-Youl;Oh Hyoung-Woo
    • Journal of Ship and Ocean Technology
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    • 제9권2호
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    • pp.11-20
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    • 2005
  • A mixed-flow pump is largely applied for waterjet propulsion in high-speed vessels because of excellent cavitation performance. For the present study, we analyze the performance of mixed-flow pump, which is composed of impeller and stator. The test device for a mixed-flow pump was installed in the test section in the KRISO cavitation tunnel. The performance tests of two mixed-flow pumps were carried out with the test device at various flow rates using various nozzles. The test results agree fairly well with the predicted results by commercial CFD code. The test device is available for verification of impeller performance together with CFD analysis

Seasonal effect on hydrological models parameters and performance

  • Birhanu, Dereje;Kim, Hyeonjun;Jang, Cheolhee;Park, Sanghyun
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2018년도 학술발표회
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    • pp.326-326
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    • 2018
  • The study will assess the seasonal effect of hydrological models on performance and parameters for streamflow simulation. TPHM, GR4J, CAT, and TANK-SM hydrological models will be applied for simulating streamflow in ten small and large watersheds located in South Korea. The readily available hydrometeorological data will be applied as an input to the four hydrological models and the potential evapotranspiration will be computed using the Penman-Monteith equation. The SCE-UA algorithm implemented in PEST will be used to calibrate the models considering similar objective functions bedside the calibration will be renewed to capture the seasonal effects on the model performance and parameters. The seasonal effects on the model performance and parameters will be presented after assessing the four hydrologic models results. The conventional approach and season-based results will be evaluated for each model in the tested watersheds and a conclusion will be made based on the finding of the results.

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고성능 액체크로마토그래프 기기의 성능검증을 위한 밸리데이션 가이드라인에 대한 연구 (Investigation of Validation Guidelines for Performance Verification of High Performance Liquid Chromatograph)

  • 윤원남;이범규;이원재
    • 약학회지
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    • 제57권5호
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    • pp.362-368
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    • 2013
  • High performance liquid chromatograph (HPLC) is the most frequently used analytical instrument in analytical laboratories for pharmaceutical analysis. In order to provide a high level of assurance for reliable data generated from the HPLC analysis, the performance qualification of the HPLC system is required. For this purpose, the performance of HPLC system should be regularly monitored by examining the key functions of the typical HPLC system (solvent delivery system, injector system, column oven, UV-VIS detector system). We have investigated the validation guidelines of the performance verification of these key modules for HPLC system. And we proposed and evaluated its validation guidelines and the related verification methods for pharmaceutical analysis that could be practically applied in Korea.

K증권 홈트레이닝 시스템 분석을 통한 성능개선에 관한 연구 (A study for performance improvement by system analysis of HTS running K Securities)

  • 김현호;박용덕
    • 디지털산업정보학회논문지
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    • 제5권3호
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    • pp.19-28
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    • 2009
  • Computer system performance has always had the possibility of affecting business profitability, but with the advent of the World Wide Web where customers interact directly with Web servers, response time can have a direct and dramatic impact on business revenue. This paper is written in the operation environment and system analysis of HTS(Home Trading System) running K Securities. This paper also shows the method for performance improvement through investigation and analysis for the overall systems resources whether HTS has an appropriate performance or not. Performance analysis includes specially CPU analysis, Memory analysis, Disk Input/Output analysis and application analysis. Besides providing more detailed server specification for expansion from now on, system performance can be maintained with effect in the future. Through this study it is possible to manage the performance of HTS more easily and to solve problems such as a bottleneck more quickly.

CRM 구현을 위한 경영지원요인이 고객지향성 및 성과에 미치는 영향 - 은행을 중심으로 - (The Effect of Managerial Support Factors on Customer Orientation and Performance for CRM Realization -Focused on Commercial Banks-)

  • 오재신;정기한
    • 디지털산업정보학회논문지
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    • 제6권1호
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    • pp.181-195
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    • 2010
  • This study intends to find the empirical relationship between influential factors of CRM realization and performance. The purpose of this study is to analyze effect of managerial support factors on customer orientation, work performance, and customer performance in the banking institutions. First, it is analyzed to find what kind of effects the major factor of CRM system may have on customer orientation. Then, the impacts of the customer orientation on the performance are to be analyzed. Lastly, it is analyzed that the work performance affects the customer performance.

Evaluation of Structural Integrity and Performance Using Nondestructive Testing and Monitoring Techniques

  • Rhim, Hong-Chul
    • 한국지진공학회논문집
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    • 제2권3호
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    • pp.73-81
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    • 1998
  • In this paper, the necessity of developing effective nondestructive testing and monitoring techniques for the evaluation of structural integrity and performance is described. The evaluation of structural integrity and performance is especially important when the structures and subject to abrupt external forces such as earthquake. A prompt and extensive inspection is required over a large area of earthquake-damaged zone. This evaluation process is regarded as a part of performance-based design. In the paper, nondestructive testing and monitoring techniques particularly for concrete structures are presented as methods for the evaluation of structural integrity and performance. The concept of performance-based design is first defined in the paper followed by the role of evaluation of structures in the context of overall performance=based design concept. Among possible techniques for the evaluation, nondestructive testing methods for concrete structures using radar and a concept of using fiber sensor for continuous monitoring of structures are presented.

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중소기업의 산업환경, 기술협력 및 성과간의 구조적 관계에 관한 연구 (A Study on Structural Relationship among Industrial Environment, Technological Cooperation and Performance of Small and Medium-sized Firms)

  • 나상균
    • 대한안전경영과학회지
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    • 제11권2호
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    • pp.223-233
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    • 2009
  • This study was aimed at analyzing the structural relationship among such factors as industrial environment, technological cooperation, technological innovation performance and management performance that are essential to technological innovation of small and medium-sized companies. For this aim, an analysis was conducted to determine which of the factors in industrial environment has impact on technological cooperation of small and medium-sized companies. An empirical analysis was also performance to find what kind of effects the technological cooperation may have on technological innovation and management performance. From the analyses, it became known that: first, changes in industrial environment have influence on technical cooperation factors including production technology, technical information, technical manpower and fund for technology that are assorted by means of factorial analysis; second, the technological cooperation of small and medium-sized companies has impact on their technological innovation performance; and third, the technological cooperation of small and medium-sized companies has impact on management performance.