• 제목/요약/키워드: Total system performance assessment

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Development of Database and QA Systems for Post Closure Performance Assessment on A Potential HLW Repository

  • Hwang, Y-S;Kim, S-G;Kang, C-H
    • Nuclear Engineering and Technology
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    • v.34 no.4
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    • pp.406-414
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    • 2002
  • In TSPA of long-term post closure radiological safety on permanent disposal of HLW in Korea, appropriate management of input and output data through QA is necessary. The robust QA system is developed using the T2R3 principles applicable for five major steps in R&D's. The proposed system is implemented in the web-based system so that all participants in TSPA are able to access the system. In addition, the internet based input database for TSPA is developed. Currently data from literature surveys, domestic laboratory and field experiments as well as expert elicitation are applied for TSPA.

A Case Study on the Effect of Fault Reactivation on Groundwater Flow around a Hypothetical HLW Repository (Fault Reactivation에 의한 가상 방사성폐기물 처분장 주변 지하수 유동 변화 평가 : 2차원 케이스 스터디)

  • Seo, Eun-Jin;Hwang, Yong-Soo;Han, Ji-Woong
    • Tunnel and Underground Space
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    • v.16 no.4 s.63
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    • pp.307-312
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    • 2006
  • Radionuclide released from corroded container migrates through groundwater flow pathway in the underground rock. Therefore it is important to study the groundwater flow analysis for total system performance assessment of a HLW repository. In this study assuming a geological change of underground rock in future, the two dimensional groundwater flow analysis is done by the NAMMU, the assessment code for groundwater flow in porous media. Assuming the hypothetical repository with the reactivation of fault in the vicinity of it, the effect of change in aperture and permeability by reactivation of fault around a repository on groundwater pathway is studied.

교통영향평가제도 개선방안 연구

  • 이한준;권영인;조준행
    • Journal of Korean Society of Transportation
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    • v.7 no.2
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    • pp.71-87
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    • 1989
  • The objectives of this study are first, to evaluate the actual performance of the Transportation Impact Assesment System of Korea, second, to find the institutional problems of the system, and third, to seek for the best improvement of the system. Total 70 assessment reports performed in 1988 and judgements of the municipal councils of the reports were inspected. And the legal system of all levels were reviewed. According to the results, there are some needs to expand the number of cities subject to the assessment system. And the several regulations about the qualification of the agents assessing transportation impacts, the composition and operation of the municipal councils, and the timing of assessing the impacts are turned out improper. A proper alternative of amendment of the regulations are recommended. And the establishment of central council for judging assessments of hudge facilities, adoption of joint assessment of facilities bellow the standard, post occupancy assess ent, and transportation fee system were also recommended.

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Assessment of Three-Phase Actuated Signal Operation at Diamond Interchanges (다이아몬드 인터체인지의 3 현시 신호운영 평가)

  • 이상수
    • Proceedings of the KOR-KST Conference
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    • 2002.02a
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    • pp.143-159
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    • 2002
  • The performance of two single-barrier three-phase actuated control systems at diamond interchanges was evaluated for various traffic conditions. To emulate the actuated signal control, hardware-in-the-loop system combined with CORSIM simulation program was used. Two performance measures, average delay and total stops, were used for the evaluation process. Results showed that the two three-phase systems gave similar performance in terms of average delay, but not stops. The delay performance of each phasing system was generally dependent on the traffic pattern and ramp spacing. The total stops decreased as the spacing increased, and it was the most sensitive variable that can differentiate between the two three-phase systems. It was also shown that the hardware-in-the-loop control could provide a good method to overcome the limitations of current simulation technology.

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THE USE OF NUMERICAL MODELS IN SUPPORT OF SITE CHARACTERIZATION AND PERFORMANCE ASSESSMENT STUDIES FOR GEOLOGICAL REPOSITORIES

  • Neerdael, Bernard;Finsterle, Stefan
    • Nuclear Engineering and Technology
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    • v.42 no.2
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    • pp.145-150
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    • 2010
  • The paper is describing work being developed in the frame of a 5-year IAEA Coordinated Research Programme (CRP) started in late 2005. Participants gained knowledge of modelling methodologies and experience in the development and use of rather sophisticated simulation tools in support of site characterization and performance assessment calculations. These goals were achieved by a coordinated effort, in which the advantages and limitations of numerical models are examined and demonstrated through a comparative analysis of simplified, illustrative test cases. This knowledge and experience should help them address these issues in their own country's nuclear waste program. Coordination efforts during the first three years of the project aimed at enabling this transfer of expertise and maximizing the learning experience of the participants as a group. This was accomplished by identifying common interests of the participants (i.e., Process Modelling and Total System Performance Assessment methodology), and by defining complementary tasks that are solved by the members. Synthesis of all available results by comparative assessments is planned in the coming months. The project will be completed end of 2010. This paper is summarizing activities up to November 2009.

Development of TCA Method for Cost Analysis in Farmhouse (TCA 분석 TOOL 개발과 농가비용 비교분석)

  • Yoon, Sung-Yee
    • Korean Journal of Organic Agriculture
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    • v.12 no.1
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    • pp.23-44
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    • 2004
  • TCA(Total Cost Assessment) can be defined by a tool to evaluate actual profit about investment. Also, It can be used by method to make more reasonable decision-making in business. Enforcement of 'direct payment system' for environment friendship farmhouse of government is spreading recent times. But, it is true that it is no definite standard about appropriation of disbursement amount of money. TCA method can be utilized usefully for solution of these problem. Also, It will help to decide price grasping invisible cost and environment cost. Therefore, We tried that may can apply TCA theory in farmhouse class, and attempted economic performance estimation which use this. This study introduces TCA theory and developed applicable expense list in agriculture field. Also, We applied TCA theory to farmhouse. This theories referenced domestic and th6 foreign countries, connection literature. But, It handled part about invisible cost and social cost etc..

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Assessment of ASP-PMIS Quality in Korea

  • Lee, Seul-Ki;Yu, Jung-Ho
    • Journal of Construction Engineering and Project Management
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    • v.1 no.3
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    • pp.9-17
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    • 2011
  • Web-based PMIS (Project Management Information System) has played significant role in construction management processes in Korea. As the use of web-based PMIS increases, regular quality assessment to identify user's requirements is necessary. However, there have been rare research efforts for quality assessment of web-based PMIS. This study aims to assess the quality of web-based PMIS, especially ASP-PMIS (Application Service Provider based PMIS) that is widely used in Korean construction industry. The assessment factors of ASP-PMIS quality were adopted from previous research and empirically confirmed using exploratory factor analysis. ISA (Importance-Satisfaction Analysis), which is a variation of original IPA (Importance-Performance Analysis), were selected for the assessment and analysis method in this research. A total of 253 completed questionnaires, composed of 23 assessment items, were collected from the ASP-PMIS users in Korea (construction managers and constructors), and they were used to analyse the quality of the systems. Some possible contributions of this research are: it introduces a simple and easy-to-use tool for assessing the quality of ASP-PMIS with a set of quality assessment factors that are selected from previous researches and empirically tested; it provides the quality assessment results of ASP-PMIS in Korea so that ASP-PMIS providers in Korea can understand the users' opinion on their systems; it also identified that the urgent factors that require immediate attention to improvement. However, further researches are to be required on the following areas: enhancing the quality assessment factors in terms of their relation to the success of ASP-PMIS and to the users' performance; assessing and analyzing the quality of individual ASP-PMIS; establishing continuous improvement systems institutionally and instrumentally.

A Study on the Development of Criteria to Assess the Business Performance of the Development Fund for Women and the Organizations it Supports - focusing on the Assessment of the Seoul Metropolitan Government's Development Fund for Women - (여성발전기금의 평가도구 개발 및 지원단체의 사업수행능력 평가에 대한 연구 - 서울특별시 여성발전기금 지원사업 평가를 중심으로 -)

  • Lee, Bong-Wha;Kim, Kyoung-A
    • Journal of the Korean Home Economics Association
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    • v.44 no.3 s.217
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    • pp.127-141
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    • 2006
  • This study aims to create assessment tools for the development fund for women, and to assess the business performance of the organizations using this development fund for women on the basis of such tools. A total of 57 projects by 58 organizations were assessed for a period of eight months. The assessment was carried out by using five tools: 1) examining the weight of the assessment tools, 2) visiting and inspecting project sites, 3) visiting and inspecting the offices of the participating organizations, 4) cooperating with the Seoul Metropolitan Government for municipal administration, and 5) assessing the final project report. Each tool was comprised of three elements: ability of relevant organizations, operational procedure, and projects results. The assessment results are summarized below: 1. According to the examination of the general trends in assessing the organizations that received the Development Fund for Women, it was found that the assessment emphasized performance more than the process involved in the project. Thus, the result suggested that the projects should be carried out more aggressively. 2. Regression analysis was conducted to identify the capability of the organizations in performing the projects with the development fund for women and the capability of the subjects as an independent variable. It was observed that such capabilities were affected by the degree of role sharing and the utilization of internal organizations. It suggested the importance of human resources. 3. To motivate the subjects involved in executing the projects with the use of the Development Fund for Women, the requirements and the satisfaction factors suggested strengthening the scope of financial support and activating the project environment. In conclusion, it is considered that the findings would provide practical ways to improve the system in using the Development Fund for Women, and in setting relevant policies in the future.

Improvement of Review System on Sea Area Utilization-Impact by Marine Environmental Management Law (해양환경관리법상 해역이용영향 검토기관의 발전방향)

  • Lee, Dae-In;Eom, Ki-Hyuk;Kim, Gui-Young;Jang, Ju-Hyoung
    • Journal of the Korean Society for Marine Environment & Energy
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    • v.11 no.1
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    • pp.55-62
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    • 2008
  • This study investigated the status and problems of marine-related environmental impact assessment and a utilization-consultation system in Korea and suggested improvement of the review organization. Also, it conducted SWOT analysis based on evaluation of functions, roles and performance of the marine environmental impact assessment center and proposed development strategies of the center through introduction of expert opinions and advanced systems. The performance statement-review by the center in 2007 included 358 cases in total; 165 (46.1%) for consultation on utilization of sea area, 104 for environmental impact assessment (29.0%), and 89 (24.9%) for prior environmental review. The consultation on utilization of sea area can be divided into that for public water surface-use (41%) and reclamation (32%), and sea aggregate extraction process (21%). Although bad impacts on marine environment are reducing under the current system, there are some limits and problems to supplement it in terms of content, system and operation. Review system on sea area utilization-impact(marine environmental impact assessment center) by marine environmental management law needs to obtain expertise, fairness and efficiency and, to do so, have operational supports and institutional improvement to maximize its own functions and roles. At the same time, it is necessary for the center to establish identity and the status as a professional review organization by setting active development strategies inside the center. Finally, it should strengthen an consultation system of marine environmental impact assessment led by the related ministry to achieve effective coastal management.

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A Time series Analysis on the Performance Items of the "Housing Performance Grading Indication System" (주택성능등급표시제도 성능항목의 특성 및 시계열분석( I ))

  • Lee, Sung-Ok;Kim, Soo-Am;Shin, Sung-Eun
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 2009.11a
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    • pp.213-216
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    • 2009
  • The purpose of this study is analyzing temporal flow about 20 detailed performance items in the "Housing Performance Grading Indication System". This study try to figure out situations according grade in detailed performance item and to analyze change item about 112 cases(2 cases in 2006, 15 cases in 2007, 46 cases in 2008, 49 cases in 2009), from January 9, 2006 which system is undertaken, to October, 2009. This system consists of 5 main performance section, 14 performance categories and 20 detailed performance items. 5 main performance parts are Noise and Acoustics(Light-weight impact sound control, heavy-weight impact sound control, sound control of toilet, sound control of party wall), Long-life(flexibility, remodeling & maintenance, durability), Landscape & Indoor Environment(landscape, formaldehyde control & ventilation, daylighting, thermal environment), Welfare & Barrier-free(playground and community center, welfare space, barrier-free design), Fire Safety(fire safety, safe place, fire-resisting quality). Total efficiency about housing can understand systematically of 20 perfomance items though this research.

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