• Title/Summary/Keyword: performance evaluation method

Search Result 5,319, Processing Time 0.038 seconds

Development of Power Performance Evaluation System using Modeling Technology (설비 모델링 기술을 이용한 발전성능평가 시스템 구성방안 연구)

  • Lee, Ji-Hoon;Lee, In-tae;Jung, Nam-Joon;Bae, Jung-Seok;An, Young-Mo
    • KEPCO Journal on Electric Power and Energy
    • /
    • v.4 no.2
    • /
    • pp.81-88
    • /
    • 2018
  • Performance evaluation of a plant to efficiently manage and maintain the performance of the plant is a very important procedure. However, since the conventional performance evaluation method is an Excel-based manual method, the preparation procedure is complicated and the versatility is poor. In this paper, we analyze the problems of the existing performance evaluation system, effectively model the equipment, calculate the missing physical properties, and improve the versatility, efficiency and accuracy of the performance evaluation through the equipment modeler which performs automatic index calculation based on this.

A Knowledge Base Construction for Control Application (제어응용을 위한 지식베이스의 구축)

  • 김도성;이명호
    • The Transactions of the Korean Institute of Electrical Engineers
    • /
    • v.39 no.7
    • /
    • pp.720-728
    • /
    • 1990
  • A learning control method is proposed in this paper, using a knowledge base which contains control rules, data, and patterns of the past experience of a plant. The knowledge for plant control is retrieved from measurement data during operation and continually modified after control performance evaluation. A control method is proposed using tinually modified after control performance evaluation. A control method is proposed using fuzzy model of the plant and a recursive statistic decision method of fuzzy subset for control rule generation. Also, the resulting knowledge-based control algorithm has been applied to aprocess and its performance improvement and proper generation of appropriate control rules have been verified.

  • PDF

A Study on the Perception and Improvement Plans of Performance Based Pay System of Elementary School Teachers and Elementary School Health Teachers (교원 성과급 제도에 대한 초등교사와 초등보건교사의 인식과 개선방안)

  • Yeo, Soon-Young;Kim, Yun-Shin;Kim, Hyeon-Suk
    • Journal of the Korean Society of School Health
    • /
    • v.24 no.2
    • /
    • pp.141-154
    • /
    • 2011
  • Purpose: The purpose is to provide basic information for establishing improvements on performance-based pay's evaluation method of health teachers. Methods: For subjects, 200 teachers at public elementary schools and 200 health teachers at public elementary schools in Gyeonggi-do were conveniently sampled, and then surveyed through a questionnaire. The questionnaire was to recognize recognition of teachers working under the teacher's performance-based pay system, which was quoted in the questionnaire of Choi ji-hye (2005) and Lee mi-gyeong (2008). Inquiry for the recognition of teachers on evaluation of health teacher's performance-based pay system and improvements on the performance-based pay's evaluation method of health teachers were used after consultation with five incumbent health teachers and a review with the thesis director. Results: The performance-based pay's evaluation method of health teachers has the same method with general teachers in schools, so it is not fair to evaluate the performance of health teachers. The ways to improve the performance-based pay evaluation method of health teachers is as follows: first, the approval on improving 'the number of class hours' which is a detailed item of a teacher's performance evaluation criterion to 'the number of health lesson hours per week and the number of students visiting the school infirmary per week'; second, improving 'life guidance' into 'counseling results of medically-treated students, parents of students and personal hygiene guidance'; third, improving 'a teacher in charge' into 'awarding of points by being recognized as a health teacher in charge of all students and considering the economic situation of the region,; forth, improving 'difficulty of position' into 'the number of health-teacher's annual promotion task items and the treatment number of issuing and receiving of official documents', and improving the 'task difficulty' into 'importance and urgency of emergency patient management, risk level and urgency of infectious diseases and avoiding work in charge' appeared to be more than 90% respectively. Conclusion: The performance-based pay system of teachers being carried out every year should be executed by preparing fair evaluation criteria suitable for task properties and the role of health teachers with different evaluation criteria compared to general teachers.

Performance Evaluation of Synchronization Method for Reducing the Overall Synchronization Time in Digital Radio Mondiale Receivers

  • Kwon, Ki-Won;Kim, Seong-Jun;Hwang, Jun;Paik, Jong-Ho
    • KSII Transactions on Internet and Information Systems (TIIS)
    • /
    • v.7 no.8
    • /
    • pp.1860-1875
    • /
    • 2013
  • In this paper, we present a comparative performance evaluation of the sampling frequency synchronization method that eliminates the initial sampling frequency offset (SFO) to reduce the overall synchronization time in Digital Radio Mondiale (DRM) receivers. To satisfy the advanced synchronization performance requirements of DRM receivers, we introduce the conventional DRM synchronization method (Method 1) and another method (Method 2), which does not perform the initial sampling frequency synchronization in the conventional synchronization method (both methods are mentioned later in this paper). To demonstrate the effectiveness of the performance evaluation, analytical expressions for frame detection are derived and simulations are provided. Based on the simulations and numerical analysis, our result shows that Method 2, with a negligible performance loss, is robust to the effects of the initial sampling frequency synchronization even if SFO is present in the DRM signal. In addition, we verify that the inter-cell differential correlation used between reference cells is robust to the effect of the initial SFO.

A Study on Improvements of Research Performance Evaluation for Enhancing the Soundness of Academic Activities (학술 활동 건전성 제고를 위한 연구업적평가 개선에 관한 연구)

  • Younghee, Noh;Ji Hei, Kang;Yong Hwan, Kim;Jeong-Mo, Yang;Jongwook, Lee
    • Journal of the Korean BIBLIA Society for library and Information Science
    • /
    • v.33 no.4
    • /
    • pp.93-114
    • /
    • 2022
  • This study aims to propose the ways to improve the research performance evaluation to support the establishment of a sound research culture. For the study, we analyzed the cases of domestic and foreign research performance evaluation, and a survey and an interview were conducted for faculty and research performance evaluation officials, respectively. In the study, the direction of establishing the principle of research performance evaluation, the method of categorizing the type of research performance, the method and procedure of research performance evaluation, and necessary documents were proposed. First, eight principles were suggested to be considered in evaluating research achievements to ensure the validity, reliability, and transparency of the evaluation while supplementing the limitations of quantitative evaluation. Second, the main types of research achievements were categorized into journal articles, books, and presentations at academic conferences. Third, as a research achievement evaluation method, a hybrid evaluation using quantitative and qualitative and multiple measurement indicators was proposed. Fourth, a total of 11 steps (required 7 steps) were presented as a procedure for research achievement evaluation. Fifth, publications, evaluation documents, and committee chair's reports were proposed as major documents for research achievement evaluation. The research achievement evaluation improvement plan presented in this study should be flexibly applied in consideration of the characteristics of the academic and research fields and universities.

Study on performance evaluation of a francis turbine (프란시스 수차의 성능평가에 관한 연구)

  • Ko, Jaemyoung;Kim, Youngjoon;Cho, Yong
    • 한국신재생에너지학회:학술대회논문집
    • /
    • 2011.05a
    • /
    • pp.207.1-207.1
    • /
    • 2011
  • The performance of a francis turbine is studied by applying a new performance evaluation tester. the performance of a francis turbine is predicted under several operating conditions and the prediction results are compared with model test data. As a result, it is demonstrated that the present method can predict the performance of a francis turbine with high accuracy and has usefullness as an engineering tool on the performance of hydraulic turbines.

  • PDF

A Basic Study on Evaluation Method and Performance of Membrane Waterproofing Layer (멤브레인 방수층 성능 및 평가방법에 관한 기초적 연구)

  • Oh, Mi-Hyun;Kwon, Shi-Won;Kang, Hyo-Jin;Jung, Hee-Won;Choi, In-Sung;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2003.11a
    • /
    • pp.17-21
    • /
    • 2003
  • This study is mainly acceptive for physical material performance than waterproofing layer performance on the external condition after construction. The reason are legalized only for material performance quality standard even though it is existed waterproofing materials for membrane. In actuality, waterproofing layer are greatly occurred in performance a decreased developing essential element that are human footprints as a result physical perimeter environment after construction and on the construction. As the result, this present paper purpose for evaluation and performance of the membrane waterproofing layer on the construction.

  • PDF

A Basic Study on Evaluation Method and Performance of Membrane Waterproofing Layer (멤브레인 방수층 성능 및 평가방법에 관한 기초적 연구)

  • 오미현;권시원;강효진;정희원;최인성;오상근
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2003.05a
    • /
    • pp.17-21
    • /
    • 2003
  • This study is mainly acceptive for physical material performance than waterproofing layer performance on the external condition after construction. The reason are legalized only for material performance duality standard even though it is existed waterproofing materials for membrane. In actuality, waterproofing layer are greatly occurred in performance a decreased developing essential element that are human footprints as a result physical perimeter environment after construction and on the construction. As the result, this present paper purpose for evaluation and performance of the membrane waterproofing layer on the construction.

  • PDF

A Study on Developing the Performance Evaluation Indicators of Defense R&D Test Development Projects (국방연구개발 시험개발사업 성과평가지표 개발에 관한 연구)

  • Lee, Hyung-Jun;Kim, Woo-Je;Kim, Chan-Soo
    • IE interfaces
    • /
    • v.23 no.1
    • /
    • pp.78-88
    • /
    • 2010
  • In this paper we develop a model for the performance evaluation of defense R&D test development projects based on analytic hierarchy process. First, evaluation indicators are collected through the related literature survey and a delphi inquiry method. Second, stepwise multiple linear regression is used for developing a hierarchical structure for analytic hierarchy process in the evaluation model, which can make the selected evaluation indicators of the hierarchical structure independent. Also we verify the effectiveness of proposed indicators of the performance evaluation by comparing with the existing evaluation indicators. The developed indicators for the performance evaluation is more reasonable and practical than the previous indicators on defense R&D test development projects.

Seismic performance evaluation using capacity spectrum method of bridge retrofitted with isolators (능력스펙트럼을 이용한 지진격리교량의 내진성능평가)

  • 김민지;한경봉;박선규
    • Proceedings of the Korea Concrete Institute Conference
    • /
    • 2002.10a
    • /
    • pp.129-134
    • /
    • 2002
  • The seismic performance evaluation and retrofit process are very important for old bridge. If the result is not appropriate, a retrofit process requires. Among the various retrofit methods, this paper selects a seismic isolator and evaluates a seismic performance of bridge. In case of applied seismic isolators to bridge, it proved that seismic capacity is increased by isolators A period of bridge is increased, and a seismic response is decreased. A method of evaluation is capacity spectrum method. By means of a graphical procedure, capacity spectrum estimates a performance level of structure by comparing the capacity of structure with the demand of earthquake ground motion on the structure. The objective of this study is to compare a seismic performance of a non-seismic designed bridge and seismic isolated bridge and to verify a effect of seismic isolator

  • PDF