• 정보교육학회논문지
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• 제6권2호
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• pp.131-140
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• 2002

본 연구에서는 이러한 웹 자료의 조직적이고 통합적인 웹 기반 프로젝트 학습 시스템에 대한 개념을 설명하고 그 특성을 살려 학습자 중심의 웹 기반 프로젝트 시스템의 기본 구조를 제안한다. 본 연구의 웹 기반 프로젝트 학습 시스템은 학습자들이 시간과 공간의 제약을 받지 않는 인터넷상의 다양한 정보들을 이용할 수 있도록 한다. 그리고 프로젝트 시스템에서 수시로 교사와 전문가의 도움도 받고 다른 팀의 동료학생들로부터 도움과 평가를 받으면서 교실중심에서 벗어나 일상 생활 경험을 바탕으로 한 관심과 흥미, 주제 중심, 활동 중심, 문제 중심의 프로젝트 활동을 할 수 있도록 구현함으로써 학습자 중심의 프로젝트 학습이 되도록 한다.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 2004년도 추계학술발표회 발표논문집
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• pp.683-684
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• 2004

The RF system for PEFP 20MeV proton linear accelerator is described. The RF system for 3MeV RFQ was already installed and operated to drive the RFQ. The klystron was tested up to 600kW itself and operated up to 350kW routinely. The HPRF dummy load was stabilized with the change of the coolant. Preparation of 20MeV DTL HPRF test has been completed. LCP and PLC system for klystron power supply was already prepared. Voltage fluctuation was measured during klystron test. Voltage control feedback loop seems to be re-adjusted.

• 한국경영과학회:학술대회논문집
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• 한국경영과학회 1993년도 추계학술대회발표논문집; 서강대학교, 서울; 25 Sep. 1993
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• pp.212-226
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• 1993

The self-reliance of NSSS System Design is required not only the design capability to perform the system design but also the management capability to control the resource and time for the Project effectively. The purpose of this study is to develop the simplified standard Logic Network that is scheduled on the time and resource using the PERT/CPM method. That is mainly focused on Ulchin 3&4 Project. We prepare the management tool of NSSS System Design project. And we can utilize it as a reference tool for the similar project which are complex and long term in a next project.

• 한국산학기술학회논문지
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• 제10권12호
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• pp.3645-3652
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• 2009

프로젝트식 교과과정인 협동프로젝트가 성공적으로 운영되기 위한 가장 중요한 요소는 체제적이고 합리적인 평가라 할 수 있다. 본 논문에서는 단순한 결과 지향적인 평가를 벗어나 학습자에게 스스로 문제점에 대해 진단하고 개선할 수 있는 다차원 수행평가지원 시스템을 설계 및 구현한다. 이 시스템은 협동프로젝트를 이수하는 모든 과정을 평가함으로써 평가자와 피평가자 모두 평가 결과에 대해 만족할 수 있도록 구성하였다.

• 산업경영시스템학회지
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• 제14권24호
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• pp.169-177
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• 1991

The Existing Protect schedulings are mathematical nodes upon which probability control is based. In fact, under the mechatronics environment in the new product design and development, statistical information is very poor or sometimes non-existent. Probabilistic PERT/CPM methods are not always satisfying because those methods suppose that it is possible to apply central- limit theorem and there exists a critical path which is much mart critical than all the other paths. Fuzzy project scheduling is possibility based scheduling. For this reason, the Fuzzy Project Scheduling essential to design, development and control the new product under the mechatranics environment. This paper deals with a modeling on the project scheduling which use fuzzy set theory. Fuzzy concepts in the project scheduling are shown to be very useful and easy to work with in the R & D system.

• 한국CDE학회논문집
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• 제15권2호
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• pp.124-135
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• 2010

PLM(Product Lifecycle Management) is one of innovative manufacturing paradigms which leverages e-business technologies to allow a company's product content to be developed and integrated with all company business process through the extended enterprise. In these days, most construction companies also make an effort to enhance their systems for creating, sharing and managing information to improve business efficiency through entire lifecycle of project execution. Because of different needs, business process and diverse engineering activities such as design, structural analysis, installing simulation, documents and data managements, a new paradigm for construction companies is needed to manage and share the entire workflow, and information in total project lifecycle. In this paper, we conducted user requirement and business process analysis of constructions to design C-PLM system which is a PLM system for effective management of civil project and engineering activities. Also, we implement C-PLM system based on commercial PDM system, and applied it to civil project as case studies.

• 한국정보처리학회논문지
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• 제2권2호
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• pp.137-147
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• 1995

건설공사에서는 설계 및 시공이 엄격히 구분되어 있다. 따라서 시공에 필요한 물 량을 산출하기 위해서는 설계화일을 물량산출에 직접 사용하지 못하고 수작업에 의존 하고 있다. 이러한 이유는 설계 및 시공시스템의 기능사이에 서로의 연계성이 적기 때문이다. 본 연구에서는 공사설계의 치수 및 물량데이타를 이용하여 물량산출을 자동 화 할 수 있는 데이터베이스 모델을 구성하고 분석하였다. 즉, 설계시 CAD 시스템의 설계라이브러리에 저장되어 있는 구조설계화일과 물량산출자료의 연계성을 분석하여 공사물량을 효율적으로 산출할 수 있는 시스템을 구축하고, 이의 성능을 평가하였다.

• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.141-144
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• 2013

This paper presents a system called a Cash-flow based Construction Schedule Optimization system(CfSO). The existing CPM effectively handles schedule and cost management. However, funding strategy should be considered to obtain maximum profit and to progress a project favorably. One of measures is to coordinate the contract terms between owner and subcontractors (or suppliers). Contractor may decrease the interest cost attributed to project financing by adjusting the timing of cash-inflows and cash-outflows. It is an excellent method maximizing profits. This paper presents a method to estimate the amount of a cash-flow occurred periodically by integrating the terms of contract into scheduling. The proposed method is implemented as a system prototype in Microsoft Excel. This system provides a user an automated tool that identifies an optimal schedule that secures maximum profit by adjusting start and finish times of non-critical activities' free-floats without affecting on the project completion time. This system supports a project manager to establish an optimum project schedule and identifies profitable contractual conditions against to a construction owner.

• Applied Science and Convergence Technology
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• 제24권5호
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• pp.132-135
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• 2015

Schematic of RAON vacuum system is introduced. Vacuum test for superconducting cavity with liquid nitrogen is performed. Schematic plan for RAON vacuum system is introduced and vacuum control system for superconducting cavity test is constructed. Vacuum pressure of cavity is shown as a function of pumping time. The temperature of cavity is shown as a function of cooling time. Outgassing species from cavity is also detected. Detailed experimental procedure is presented to test the cavity vacuum with liquid nitrogen.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2023년도 가을학술발표대회논문집
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• pp.95-96
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• 2023

The purpose of this study is to derive the limitations of the existing management system by analyzing the characteristics of the PC process to improve the PC construction project management system process. To overcome the limitations derived, we present a process of managing integrated information from the design-production-construction stage using QR codes and clouds. This is expected to help develop a PC construction project management system.