• Title/Summary/Keyword: Choi criteria

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A Study on Design Criteria for Web-based Library Instruction Program (웹 기반 도서관 이용자교육 프로그램의 설계기준에 관한 연구)

  • Shin, Kyoung-Hun;Choi, Sang-Ki
    • Journal of the Korean Society for information Management
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    • v.21 no.3
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    • pp.161-183
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    • 2004
  • Recently. Web-based library instruction is incomplete in domestic situation. The purpose of this study is to present the design criteria of web-based library instruction programs. This study draws elements of synthetic criteria that are analyzed by evaluation criteria of web site and web-based library instruction, and compares and analyzes web-based library instruction programs.

Design criteria and Case History of Korean Railway for Auger-drilled Pilling (철도분야 매입말뚝 설계기준 및 적용 현황)

  • Lee, Su-Hyung;Choi, Jeong-Hwan;Hwang, Seon-Keun;Eum, Ki-Young
    • Proceedings of the Korean Geotechical Society Conference
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    • 2008.10a
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    • pp.541-548
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    • 2008
  • Active application of auger-drilled piling is expected in Korea considering its advantage in noise and vibration problems against driven piling and its cost-effectiveness in comparison to the cast in-situ piling. The current design practice being used in Korea is adopted from the Japanese one, however the equipment and construction procedure is modified for the geotechnical conditions and construction circumstances in Korea. Therefore there is an urgent need for the establishment of the rational design criteria for the auger-drilled piling in Korea. As the preliminary work for the establishment, this paper presents the current practice in Korean railway constructions. Design criteria of Korea Railway Network Authority are introduced and its characteristics and the problems are described. Application cases of auger-drilled pile to railway construction are introduced as well.

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Dynamic Modeling of Green Building Certification Criteria Using System Dynamics (시스템 다이내믹스를 활용한 친환경건축물 인증기준의 동태모형 개발에 관한 연구)

  • Choi, Woo Ram;Lee, Hyo Won
    • KIEAE Journal
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    • v.9 no.5
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    • pp.53-61
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    • 2009
  • Green Building Certification System currently going into effect is a static evaluation model. Therefore, as far as the sustainable development of certification system is concerned, further long-term evaluation is required. The main purpose of this study is to offer a model in a way of developing and verifying a dynamic model in Green Building Certification. A dynamic model development has been given System Dynamics based on the causal structure. Thus, this study focused on searching the causal structure of certification criteria and verifying the reality of the model through simulation processing after developing a model. In conclusion, the development of dynamic evaluation method can be attributed to systematic evaluation for the criteria of Certification System.

Flexible Maintenance Scheduling of Generation System by Multi-Probabilistic Reliability Criterion in Korea Power System

  • Park, Jeong-Je;Choi, Jae-Seok;Baek, Ung-Ki;Cha, Jun-Min;Lee, Kwang-Y.
    • Journal of Electrical Engineering and Technology
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    • v.5 no.1
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    • pp.8-15
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    • 2010
  • A new technique using a search method which is based on fuzzy multi-criteria function is proposed for GMS(generator maintenance scheduling) in order to consider multi-objective function. Not only minimization of probabilistic production cost but also maximization of system reliability level are considered for fuzzy multi-criteria function. To obtain an optimal solution for generator maintenance scheduling under fuzzy environment, fuzzy multi-criteria relaxation method(fuzzy search method) is used. The practicality and effectiveness of the proposed approach are demonstrated by simulation studies for a real size power system model in Korea in 2010.

A Study on the Evaluation Criteria for the Selection of Academic CD-ROM Products (CD-ROM 제품(製品) 선정을 위한 평가기준(評價基準))

  • Choi, Sang-Ki
    • Journal of Information Management
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    • v.25 no.4
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    • pp.36-55
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    • 1994
  • This study discussed extensively the CD-ROM evaluation criteria that are necessary for library and information center to acquire the CD-ROM products. The evaluation criteria discussed in previous studies are divided into managerial and technical aspects, and especially the search software and user interface catagories in the technical aspect are investigated separately. Finally the basic checklist is suggested for the evaluation of CD-ROM product in appendix.

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Limitations of Common Criteria and Analysis of future Common Criteria with Collaborative Protection Profile (기존의 CC 평가제도의 한계와 cPP의 등장으로 인해 개정되는 새로운 CC 평가제도 분석)

  • Choi, Hyunduk;Yi, Okyeon
    • Proceedings of the Korea Information Processing Society Conference
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    • 2015.10a
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    • pp.832-834
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    • 2015
  • 최근 CCRA(Common Criteria Recognition Arrangement) 협정서 개정에 따라 공통평가기준인 CC(Common Criteria) 평가제도에 변화가 생기고 있다. 현재의 CC 평가제도가 가지는 한계를 보완하고자 PP(protection profile)를 대신하는 cPP(collaborative protection profile)가 개발되었는데, 기존의 폐쇄적으로 운영되던 PP 개발 프로세스와 달리 cPP 개발에는 CCRA 회원국의 여러 기관 및 기업이 적극적으로 개발에 참여할 수 있다. 따라서 현재 세계 각국에서 cPP 개발에 관한 논의가 활발히 진행되고 있으며 세분화된 연구도 요구되고 있다. 본 논문에서는 기존의 CC 평가제도가 가지는 한계를 살펴보고 이러한 한계를 극복하기 위한 cPP의 등장 및 개정되는 새로운 CC 평가제도의 운영을 분석한다.

Investigation of the Safety and Technical Criteria for HLW Disposal in Other Countries (세계 각국의 고준위계기물 처분안전 및 기술기준 고찰)

  • Choi, Jong-Won;Kwon, San-Gi;Ko, Won-Il;Kang, Chul-Hyung
    • Journal of Radiation Protection and Research
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    • v.26 no.2
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    • pp.119-132
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    • 2001
  • This paper provides the basic technical and safety criteria to guide establishing the reference HLW geological repository system that has been developing based on the recommendations from the international organizations such as IAEA and ICRP as well as the comparison of the regulations of several leading countries in HLW disposal. The proposed criteria and guidelines were categorized by the basic principles and general criteria for the radiological safety and the functional criteria of the repository system components. They would be useful for the development of the national regulations and criteria for HLW disposal in the future. They, of course, will be revised based on the deep geological investigation in Korean Peninsular which will be implemented in the future.

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Development of Evaluation Criteria for the Gifted Curriculum in Visual Arts (미술영재 교육과정 평가준거 개발)

  • Lee, Kyungjin;Kim, Sunah;Kang, Byoungjik;Choi, Jinyoung
    • Journal of Gifted/Talented Education
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    • v.23 no.2
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    • pp.193-213
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    • 2013
  • The purpose of this study was to develop and validate the evaluation criteria for gifted curriculum in visual arts. For this purpose, a draft of evaluation criteria for gifted curriculum in arts were first developed through literature review and opinions of experts in educational assessment, gifted education, visual art education. Then, the Delphi method was employed to validate the evaluation criteria. Delphi survey was carried out twice with 30 panelists consisting of experts in educational assessment, experts in gifted education, experts in arts(gifted) education and administrators in gifted education. Delphi survey was analyzed using the mean, content validity ratio, and the degree of consensus. Results were as followed. First, 58 evaluation criteria for gifted curriculum in arts were developed through literature review and expert opinions. The evaluation criteria included 12 context evaluation criteria, 25 input evaluation criteria, 12 process evaluation criteria, and 9 product evaluation criteria. Second, through the first and second Delphi survey, 2 evaluation criteria were not validated and finally were removed. The final evaluation criteria included 12 context evaluation criteria, 25 input evaluation criteria, 10 process evaluation criteria, and 9 product evaluation criteria. The evaluation criteria developed by this study can be used as a standard to establish the institution assessment system at the national level and evaluate institutions and programs.

A Study on the Phase Criteria of Nanoscale Systems (나노스케일 계의 상태기준에 관한 연구)

  • Lim, Min-Jong;Choi, Gyung-Min;Kim, Duck-Jool;Chung, Han-Shik;Jeong, Hyo-Min;Choi, Soon-Ho
    • Transactions of the Korean Society of Mechanical Engineers B
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    • v.31 no.5
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    • pp.435-447
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    • 2007
  • Recently, as MEMS and NEMS devices have been widely used in the various engineering applications, the characteristics of nanoscale systems are investigated in the limelight. However, as opposed to a macroscale system, the identification of the state of nanoscale systems is extremely hard because they can include only the order of $10^3{\sim}10^5$ molecules, which requires highly expensive and accurate experimental apparatus for an investigation. This limitations make the study on nanoscale system use computer simulations. Therefore, it is strongly required to identify the state of nanoscale system simulated in computer simulation. In this molecular dynamics(MD) study, we suggest that the potential energy of individual molecule can be used as criterion for defining the state of clusters or nanoscale systems. In addition, we compared the phase state from the potential energy with one from the radial distribution function(RDF) for verification. The comparison showed that the intermolecular potential energy can be used as a criteria distinguishing the phase state of nanoscale systems.

The Development of the Meta-Evaluation Criteria for the Accreditation Evaluation System of Engineering Education in Korea (공학교육인증 평가체제의 메타평가 준거 개발)

  • Cho, Ok-Kyung;Choi, Keumjin
    • Journal of Engineering Education Research
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    • v.16 no.3
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    • pp.28-41
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    • 2013
  • The purpose of this study was to develop the Meta-Evaluation Criteria which can comprehensively and systematically evaluate and improve the Accreditation Evaluation System for Engineering Education. This will provide useful implications for establishing value, direction, and improvement remedy for Engineering Educations Accreditation System of Korea. In order to achieve the purpose of this study, Meta-Evaluation Criteria was developed to comprehensively and systematically assess and analyze the Accreditation Evaluation System of Engineering Education. The research methodology used to study these subjects: literature review, interviews with experts, Delphi survey (three times), survey, analysis of narrative opinion and secondary source. The results and conclusions of this study can be summarized as follows: First, the final Meta-Evaluation Criteria were developed so as to comprehensively and systematically assess and analyze the Accreditation Evaluation System of Engineering Education. The criteria's validity and reliability were also identified. Specific details are as follows: In a draft plan of the Meta-Evaluation Criteria, Meta-Evaluation concept was defined as evaluation on the whole range of Accreditation Evaluation System of Engineering Education. Meta-Evaluation Criteria was designed to be based on a systematic approach and applies the phased approach to the lower component to reflect evaluation's characteristics. Then validity and reliability of the developed draft plan was verified by calculating Content Validity Ratio (CVR), Degree of Consensus, Degree of Convergence and Cronbach's alpha. The final developed Meta-Evaluation Criteria obtaining validity and reliability were composed of 5 evaluation areas (environment, input, performance, result, utilization), 15 evaluation items, 68 evaluation indicators.