• 제목/요약/키워드: Configuration Change

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건설원전 형상관리를 위한 통합변경프로세스 연구 (Research Integrated Change Process for Configuration Management of Construction Nuclear Power Plant)

  • 박유진
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2016년도 춘계 학술논문 발표대회
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    • pp.231-232
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    • 2016
  • Configuration Management (CM) is a process of identifying and documenting the characteristics of a Structures, Systems and Components (SSCs), and of ensuring that changes to these characteristics are properly assessed, approved, issued, implemented and verified. There are requirement management, change control, facility configuration information management for CM activities. In order to improve safety of Nuclear Power Plant(NPP), it is necessary to manage change item systematically. Existing CM concept is focused on the NPP in operation. On the other hand, NPP under construction is difficult to efficiently manage the change because of different change process from varoius stake-holders. This research considers method of consolidation change process for NPP to ensure that approved changes are accurately reflected in the design requirements, facility configuration information, and the physical configuration.

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캠퍼스 주변 가로공간구조 변화에 관한 연구 (강원대학교 캠퍼스 후문을 중심으로) (A Study on the Change of Campus Circumference Transversal Spatial Configuration (Focusing on the back-street of Kangwon University Campus))

  • 황동근;김영욱;이낙운
    • 산업기술연구
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    • 제29권B호
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    • pp.47-56
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    • 2009
  • University is very big scale among urban facilities as for single facilities and there is characteristic that accompany various university support functions in contiguity area. Width that have diverse spatial configuration generally our country university campus around was formed, this does function that connect university and ambit. Specially, formation enables change of spatial configuration that existent width system has if is new around university campus. Also, can form more animate and lively width spatial configuration by forming more various and complex width spatial configuration in width had formed in existing. It is that search special quality of university surrounding width spatial configuration analyzing existing width spatial configuration of Kangwon National University back gate by formation if this study is new in city and forecasts the change, and used space syntax by spatial configuration analysis method.

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소프트웨어 형상관리 시스템과 개인 작업공간 통합 기반 산출물 의존 관계 추적성 개선 기법 (Traceability Enhancement Technique for Dependency Relations of Software Artifacts based on the Integration of Software Configuration Management System and Personal Workspace)

  • 김대엽;윤청
    • 정보처리학회논문지D
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    • 제18D권6호
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    • pp.451-460
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    • 2011
  • 지속적으로 변경되는 소프트웨어 산출물들의 변경 이력과 의존 관계를 추적하는 능력은 소프트웨어 시스템 개발 프로세스에서 확인 및 검증, 시험과 같은 품질관리 활동들을 지원하는 중요한 요소로 인식되고 있다. 일반적인 소프트웨어 형상관리 시스템들은 산출물에 대한 추적 정보를 형상관리 시스템 내에서만 제공하고 있으며 개인의 작업공간에서 발생한 개별적인 변경까지 추적하는 기능은 지원하지 못하고 있다. 본 연구를 통해 형상관리 시스템과 개인의 작업공간을 통합함으로써 형상항목에 대한 변경뿐만 아니라 개인의 작업공간에 존재하는 산출물들의 변경 이력까지 추적할 수 있도록 하였다. 더 나아가 소프트웨어 산출물들이 동시에 생성되어 하나의 형상항목에 포함되는 경우 이들 산출물들의 버전 링크를 식별함으로써 산출물들 사이의 의존 관계를 추적할 수 있도록 하였다. 형상관리 시스템과 개인 작업공간의 통합을 위해 형상항목의 수정버전(revision)을 작업공간에 존재하는 산출물들의 버전에 태그로 연결시켰으며, 통합 변경 과정에서 산출물들에 대한 변경 이력 및 의존 관계의 효율적인 추적이 가능하도록 하였다.

Study on the Fire Hazard and Risk Analysis Derived from the Plant Configuration Change During the Shutdown Period at Nuclear Power Plants

  • Jee Moon-Hak;Hong Sung-Yull;Sung Chang-Kyung;Jung Hyun-Jong
    • Nuclear Engineering and Technology
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    • 제35권6호
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    • pp.547-555
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    • 2003
  • Fire hazard and risk analysis at Nuclear Power Plants is implemented on the basis of the normal operational configuration. This steady configuration, however, can be changed due to the temporary displacement of equipment, electric cable and irregular movement of workers through the fire compartments when the on-line maintenance is processed during the power operation mode or the scheduled outage mode for the refueling. With the consequence of this configuration change, the fire analysis condition and the evaluation result will be different from those that were analyzed based on the steady configuration. In this context, at this paper, the general items for the reassessment are categorized when the configuration has changed. The contemporary zone models for the detail fire analysis are also illustrated for their application for each classified condition.

악관절 관절원판 위치변화가 관절원판 형태 및 골변화에 미치는 영향 (Effect of disc displacement on the bony change and disc configuration of TMJ)

  • 김진화;이완;이병도
    • Imaging Science in Dentistry
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    • 제36권1호
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    • pp.17-24
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    • 2006
  • Purpose : The objective of this study was to investigate the effect of TMJ disc displacement on the TMJ disc configuration and surrounding osseous structure. Materials and Methods : The proton density and 72-weighted MR images of 57 TMJs were retrospectively studied. These TMJs were divided into three groups according to the anterior disc displacement status on MR sagittal images, those were the normal, anterior disc displacement with reduction (ADWR), anterior disc displacement without reduction (ADWOR). The frequency of disc configuration and surrounding bony change, the border status between articular disc and retrodiscal tissue were investigated according to the positional change of articular disc. Results : There were significant statistical differences of chi-square statistics of TMJ disc configurational type between normal and ADWR/ADWOR group, respectively. Surrounding bony change frequently appeared in ADWOR and a statistically significant difference of chi-square statistics of bony change frequency between normal and ADWOR group was observed. Conclusion : These results suggested that the disc configuration and bony change of TMJ are strongly related to TMJ disc displacement.

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무인기용 발사장비의 추진와이어 파단 및 구조변형 방지를 위한 형상변경 사례 (A Case Study on Configuration Change for Preventing Propulsion Wire Fracture and Structural Deformation of Launch System of UAV)

  • 임다훈;박경환
    • 품질경영학회지
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    • 제50권3호
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    • pp.533-543
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    • 2022
  • Purpose: The purpose of this study is to identify and resolve the causes of defects in the unmanned aerial vehicle launch system(propulsion wire fracture, rear rail deformation) and to prevent recurrence. Methods: The causes of the two defects were derived through fault tree analysis for each of the two defects and fault reproduction tests. In the case of propulsion wire, the installation of a high speed camera to check the behavior of wire was the driving force behind the defect resolution. Results: The results of this study are as follows; It was determined that the thickness of the washer was less than the maximum tolerance of the pulley was the cause of the propulsion wire fracture defect. Failure to comply with the launch procedure and insufficient safety margin were judged as the cause of the rear rail deformation defect. Accordingly, the configuration was changed to remove each defect. Conclusion: The case of this study was conducted to eliminate defects in the launch system for UAV. The causes of defects were estimated through fault tree analysis. After the configuration change, Structural analysis and launch tests were performed to demonstrate the safety and effectiveness of the modified configuration. As a result, the effect of the modified configuration was verified.

소프트웨어 변경가시성의 의존도분석을 이용한 형상관리 (Configuration Management Using Dependency Analysis of Software Change Visibility)

  • 김경훈;경태원;송영재
    • 디지털융복합연구
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    • 제10권1호
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    • pp.335-339
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    • 2012
  • 소프트웨어 형상관리는 소프트웨어 제품에 기반이 되는 대규모 소프트웨어 산출물 집합을 관리하는 분야이다. 형상관리는 과거 수년 동안 빠르게 발달해왔지만, 새로운 형상관리 시스템은 여전히 요구되고 있다. 전통적인 방법을 쓰거나 형상관리에 대한 연구보다는 현재 개발 프로젝트의 필요한 전문적인 관리가 필요하다. 따라서 형상관리에 필요한 저장소의 일반적인 모델이나 형상관리에 변형에 따른 과정을 관리하고 프로그램에 연결되어 있는 프로그램의 인터페이스를 분리하여 관리하는 기법이 필요하다. 본 논문은 형상관리에 필요한 저장소를 제공하고 프로그램과 인터페이스를 분리하여 관리하는데 필요한 의사결정 시스템을 도입하였다. 따라서 필요한 형상관리의 의존도를 가지고 새로운 접근법을 시도하였다. 의존도가 높은 개별적 컴포넌트의 변형과 결합을 위해 의사결정 시스템을 이용하여 확인 및 검증을 하여 소프트웨어 개발에 필요한 형상관리를 제공하고 있다.

FAULT-TREE-BASED RISK ASSESSMENT FOR DYNAMIC CONDITION CHANGES

  • Kang, Hyun-Gook;Jang, Seung-Cheol
    • Nuclear Engineering and Technology
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    • 제39권2호
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    • pp.123-128
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    • 2007
  • In order to apply a static fault-tree (FT) method to a system or a plant whose configuration changes dynamically, condition gates and a post processing method are used to effectively accommodate these changes. An operator's performance change, which can be caused by these configuration changes, should also be considered to assess the risk to a plant in a more realistic manner. This study aims to develop an integrated framework to accommodate various configuration changes and their effect on an operator’s performance by using the FT model. We applied a condition-based human reliability assessment (CBHRA) method to consider various conditions endured by an operator. That is, we integrated the CBHRA method with the conventional post processing method for modeling the system configuration changes. The effect of the condition monitoring systems installed in a plant is also considered. In this study, we show an example application of the integrated framework to a probabilistic safety assessment for the shutdown phase of a nuclear power plant.

형상관리기법을 활용한 대형 프로젝트 정보화 전략개발 (A Study on Information Strategy Development Using Configuration Management in Large-scale Construction Project)

  • 원서경
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2018년도 춘계 학술논문 발표대회
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    • pp.66-67
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    • 2018
  • Large-scale construction projects require various license and technologies for the manufacturing and handling processes. Also, the whole life cycle business process management determines the success of the project. Then, the efficiency of the business conducted by stakeholders and their possessed technology should be enhanced in order to strengthen their competitive power. For this reason, many experts pointed out to focus on the improvement of the life cycle process and efficient management. Since it is very important to keep up-to-date data and utilize it for work during the long-term project to reflect changes in the large-scale project, the most important part of the project management in project is information change management. Therefore, the objective of this study is applying configuration management(CM) technique in order to managing change data generated for planning in early phase. The result of this research will certainly assist the large-scale project managers in the development of information change management system.

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한국형발사체 형상 관리 (Configuration Management of KSLV-II)

  • 정동호;박종찬;공철원;이효영
    • 한국추진공학회:학술대회논문집
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    • 한국추진공학회 2017년도 제48회 춘계학술대회논문집
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    • pp.1153-1155
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    • 2017
  • 발사체는 여러 부품이 모여 하나의 시스템으로 만들어진다. 여러 조직에서 개발되는 여러 부품을 하나의 시스템으로 만들기 위해서는 특정 시점에 모든 설계의 확정이 필요하다. 설계 확정 이후 변경은 통제된 절차 속에서 변경의 영향을 분석하고, 변경을 할지 말지 결정을 하고, 변경이 의도된 대로 잘 실시되었는지 확인하는 과정이 필요하다. 한국형발사체 개발과정에도 위와 같은 방식으로 구현된 형상 관리 절차를 적용하고 있다. CAD툴과 PLM을 연계하여 3D모델과 2D도면, 형상식별문서에 대해서 형상관리를 시행하고 있다.

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