• Title/Summary/Keyword: Maintenance Planning

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Implementation of a Virtual Environment for the HLW Disposal Process Analyses (고준위폐기물 처분공정 개념분석을 위한 가상환경 구축)

  • Lee J.Y.;Cho D.K.;Choi H.J.;Kim S.G.;Choi J.W.
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2005.06a
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    • pp.1636-1639
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    • 2005
  • The process equipment and remote handling for the deep geological disposal of high-level radioactive waste(HLW) should be checked prior to the operation in view of reliability and operability. In this study, the concept of virtual environment workcell is implemented to analyze and define the feasible disposal process instead of real mock-up, which is very expensive and time consuming. To do this, the parts of process equipment for the disposal and maintenance will be modeled in 3-D graphics, assembled, and kinematics will be assigned. Also, the virtual workcell for the encapsulation and disposal process of spent fuel will be implemented in the graphical environment, which is the same as the real environment. This virtual workcell will have the several functions for verification such as analyses for the equipment's work space, the collision detection, the path planning and graphic simulation of the processes etc. This graphic virtual workcell of the HLW disposal process can be effectively used in designing of the processes for the hot cell equipment and enhance the reliability of the spent fuel management.

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Development of Generation Planning System for Power Market Operation (전력시장 운영 발전계획시스템 개발)

  • Choi, Jae-Seok;Yoon, Yong-Tae;Cha, Jun-Min;Park, Jun-Hyeong;Ku, Bon-Hui;Oh, Tae-Gon;Lee, Sang-Sung;Baek, Ung-Ki;Choi, Hyeon-Il;Park, Sung-Jin
    • Proceedings of the KIEE Conference
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    • 2011.07a
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    • pp.364-365
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    • 2011
  • This study develops a new system for generation system simulation and operational planning (namely, KPWR-X) including GMS(Generator Maintenance Scheduling), UC(Unit Commitment), and LF(Load Forecasting) for new power system environment in recent. The KPWR-X provides operator and planner to help the generation system more safely and economically. GUI developed in this study makes operator feel in convenient to control whole power system. In future, it is expected that generation company, ISO, and fuel procurement, etc. may use an instructional tool developer's suggestion for application. It will be also applicable to establish the operational strategies for generation control, fuel procurement and power system risk management.

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Estimation Economic Value of Multi-Functionality and Preservation Program of Traditional Stone Fences in Korea (내륙지방 전통담장의 가치평가 및 보전 방안)

  • Rhee, Sang-Young
    • Journal of Korean Society of Rural Planning
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    • v.13 no.2
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    • pp.51-61
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    • 2007
  • The purpose of this paper is to estimate the economic value of Multi-functionality Roles including landscape and so on, which traditional stone fences in Korea possess, using Dichotomous Choice Contingent Valuation Method (DC-CVM). The stone fences is life cultural heritance of regional residents. It has functions like Development of Favorable Landscapes, Maintenance of Cultural Heritage, and Recreation/Relaxation. Expectation from regional visitors shows that the existence and inheritance value of the stone wall is higher then we expected. According to the research that we had done from the people that had agreed to contribute the stone wall. moreover the public commercial value of regional tradition stone was not only 2,900 billion won but also it will increase an economic gain in every year. Therefore, preserving the stone wall that has Multi-functional Roles and values can lead to huge economic value in the future. But farmhouses in the stone wall conservation area are being supported 9 billion won in every year. This is only 0.03% of the income that farmhouse earns per year. Thus, stone wall preservation policy and plan can raise green-tour commercial value of inland area as a long-term inside measurement. Those will have to be propelled continuously.

Comprehensive Crisis Management System of Operational Continuity Management (운영연속성관리(OCM)관점에서 위기관리통합시스템 구축)

  • Kang, Heau-Jo
    • Journal of Advanced Navigation Technology
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    • v.14 no.1
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    • pp.127-133
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    • 2010
  • The process for establishment of Operational Continuity Management Plan is organized repeatedly of Business Risk Assessment, Crisis Analysis, Business Impact Analysis, Establishing Business Recovery Strategies, Detailed Planning, Plan Execution, Test and Maintenance(Including Monitoring). Therefore, in this paper in response to global environmental change and the construction and operation of social security systems to maximize operational continuity management, crisis management and crisis management systems, building integrated systems for building technology in general and operational continuity management within an organization to understand developed to provide a framework for implementing operational continuity management in terms of crisis management has proposed to build an integrated system.

Estimation Economic Value of Multi-functionality and Preservation Program of Stone Fences in Jeju (제주 전통돌담의 가치평가 및 보전 방안)

  • Rhee, Sang-Young
    • Journal of Korean Society of Rural Planning
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    • v.12 no.2 s.31
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    • pp.27-35
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    • 2006
  • The purpose of this paper is to estimate the economic value of Multi-functionality Roles including landscape and so on, which the stone fences in Jejudo possess, using Dichotomous Choice Contingent Valuation Method(DC-CVM). The stone wall is life cultural heritance of Cheju islanders. It has functions like Development of Favorable Landscapes, Maintenance of Cultural Heritage, and Recreation/Relaxation. Expectation from Cheju visitors shows that the existence and inheritance value of the stone wall is higher then we expected. According to the research that we had done from the people that had agreed to contribute the stone wall, the result was that the public commercial value of Cheju tradition stone will increase every yew(2006: 367 billion won, 2011: 437.1 billion won). Therefore, preserving the stone wall that has Multi-functional Roles and values can lead to huge economic value in the future. But farmhouses in the stone wall conservation area are being supported 6 million won every year. This is only 10% of the income that farmhouse ems per year. Thus, stone wall preservation policy and plan that can raise green-tour commercial value of Cheju Island of long-term inside measurement will have to be propelled continuously.

A Study on the Estimation of Software Development Cost of IT Projects in Public Sector (공공부문 정보화사업의 소프트웨어 개발비용 예측에 관한 연구)

  • 박찬규;구자환;김성희;신수정;송병선
    • Korean Management Science Review
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    • v.19 no.2
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    • pp.191-204
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    • 2002
  • As the portion of information systems (IS) budget to the total government budget becomes greater, the cost estimation of IS development and maintenance projects is recognized as one of the most important problems to be resolved for scientific and efficient management of IS budget. Since IS budget makes much effect on the delivery time, quality and productivity of IS projects, the exact cost estimation is also necessary for the successful accomplishment of IS projects. The primary concern in the cost estimation of IS projects is software cost estimation, which requires the measurement of the size of softwares. There are two methods for sizing software : line-of-code approach, function point model. In this paper, we propose a function-point-based model for estimating software cost. The proposed model is derived by collecting about fifty domestic IT projects in public sector and analyzing their relationship between cost drivers and development effort. Since the proposed model is developed by simplifying the function point model that can be used only when detailed user requirements are specified, it can be also applied at project planning and budgeting phase.

A study on the economical life of large-diameter water pipe: case study in P waterworks (대구경 상수도관로의 경제적수명 산정 연구: P상수도 사례연구)

  • Kim, Kibum;Seo, Jeewon;Choi, Taeho;Koo, Jayong
    • Journal of Korean Society of Water and Wastewater
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    • v.32 no.1
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    • pp.37-45
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    • 2018
  • This study develops a model to estimate the economic life of the large-diameter water supply pipeline in Korea by supplementing existing methods used to perform similar calculations. To evaluate the developed methodology, the model was applied to the actual target area with the conveyance pipe in P waterworks. The application yielded an economic life computation of 39.7 years, considering the cost of damages, maintenance, and renewal of the pipeline. Based on a sensitivity analysis of the derived results, the most important factor influencing the economic life expectancy was the predicted failure rate. The methodology for estimating the economic life of the water supply pipeline proposed in this study is one of the core processes of basic waterworks facility management planning. Therefore, the methods and results proposed in this study may be applied to asset management planning for water service providers.

Integration of Ship Outfitting BOM with Lifecycle Stages (선박 의장 BOM을 Lifecycle을 고려한 BOM 통합 방안 연구)

  • Kim, Dae-Seok;Lee, Kyung-Ho;Lee, Jang-Hyun;Lee, Jung-Min;Lee, Kwang;Kim, Jin-Ho
    • Korean Journal of Computational Design and Engineering
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    • v.16 no.3
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    • pp.187-196
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    • 2011
  • Generally, BOM (Bill of Material) means a part list which is needed to manufacture or assemble a product or part. During manufacturing processes, BOM is inevitably required for most of enterprise processes such as design, procurement, production planning/control, resource planning, and financial works. Every manufacturing industry uses many kinds of BOM's that are adjusted to the requirement of functions of their work division. Moreover, BOM evolves in different forms according to the product development phases such as conceptual design; function design, detail design, and production design because it is necessary to use different product structures to keep product data generated throughout the lifecycle of a product. This includes all data and information related to the all the product development phases. Shipbuilding works also are processed and controlled based on BOM. However, effective maintenance of ship outfitting BOM data is getting difficult as the amount and complexity of data have increased due to variety and long lifecycle of ship. For the effective management of outfitting BOM data, two aspects must be considered. One is how to classify numerous BOMs type and the others how to display BOMs. So this study suggests a method to classify BOM types and propose two categories - Structure BOM, Display BOM. Base on this result, we propose the integrated ship outfitting BOMs model and analysis outfitting BOMs.

Development of a Computerized Telephone Triage and Consultation System for Patients Discharged with Ophthalmic Disease (눈질환자의 퇴원 후 증상관리를 위한 전화상담 전산 Triage 시스템 개발)

  • Lee, Hyun Jung
    • Journal of East-West Nursing Research
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    • v.18 no.2
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    • pp.95-103
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    • 2012
  • Purpose: This methodological study was done to develop a computerized telephone triage and consultation system for patients discharged with ophthalmic disease in order to provide more efficient practice guidelines for nurses, and evaluate the usability of the system. Methods: Development of the system consisted of six phases: strategic planning, analysis, design, implementation, evaluation, modification, and maintenance. Results: In the strategic planning phase, ophthalmic problems and nursing interventions of triage algorithms and practice guidelines were cross-mapped with the Omaha system. In the analysis phase, users requirements were identified. Then infrastructure including database, nursing knowledge base, and user interface were designed in the implementation phase. Usability and satisfaction of the system presented as very positive. Telephone consultation took about 2 minutes less than time in the previous system. The system was modified based on users' comments during the evaluation phase. Conclusion: This study was the first attempt in Korea to develop computerized triage system to prompt the quality of telephone consultation. It is suggestive that the computerized triage system may improve the quality of nursing.

A Study on State of Boundary Barriers Resources in Rural Villages (농촌마을 담장자원 조사연구)

  • Lim, Jong-Hyeon;Choi, Soo-Myung;Cho, Joong-Hyun
    • Journal of Korean Society of Rural Planning
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    • v.18 no.1
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    • pp.17-28
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    • 2012
  • Functional mismatch and thought and plan-less material use of recently built boundary barriers in rural areas should greatly degrade their amenity value as one of linear villagescapes, but, their present state-of-art basically necessary for problem-solving had never surveyed up to now. From this point of view, this study tried to investigate present stock quantities and qualities of boundary barriers in rural areas by sample studies on 21 case villages(7 types ${\times}$ 3 cases) and comparative analysis between the planned or improved and nots. Wall type was absolutely dominated in the structural terms, of which more than half was used cement block as building material and, therefore, grey-colored. More than half of total barrier length were fully shielded, while relatively partially shielded in the mountainous villages in open space and 'Cultural villages' with closed housing structures. Free standing style of barriers was shown along over two thirds of their total length, although not more than half in planned reclaimed villages. Especially, because of one-sided wall type structure, mismatched over-shieldness and poorer maintenance condition of the boundary barriers in peri-urban villages, there should be provided with very intensive improvement efforts for amenity barriers.