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- 저자 : 김정욱 ( Jung Wuk Kim ) (검색결과 14 건)
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Construction Delay Risk Estimation with Vulnerability Index Applied Simulation
김정욱(Kim, Jung Wuk) 한국부동산학회 2009 不動産學報 Vol.36 No.-
1. CONTENTS (1) RESEARCH OBJECTIVES 본 연구 목적은 부동산 프로젝트의 핵심 위험 중 하나인 건설프로젝트의 공기지연 위험의 정량적 예측 방법론을 제시하는 데 있다. (2) research method 본 연구는 건설프로젝트의 공기지연에 지대한 영향을 미치는 핵심요소를 광범위한 문헌조사를 통해 추출하고, 선정된 핵심 지연 요소 (공정의 지연을 일으키는 요소)에 대하여 건설프로젝트의 각 공정의 영향 정도를 fuzzy relation으로 정의하여 관계를 정량화하고, 핵심 지연 요소의 조건 변화에 따른 대상 공정의 지연 정도의 상관관계를 정의한다. fuzzy relation의 정의를 위해 해당 공종 및 공정에 대한 다년간의 업무 경험을 가진 엔지니어의 경험적 지식을 설문을 통해 수정, 적용하였으며, 이렇게 수량화된 지연 요소와 공정의 지연 정도의 관계를 인덱스화 (Activity Vulnerability Index) 하여 경험이 부족한 엔지니어나 프로젝트 관리자가 담당 공정 및 프로젝트에 대하여 지연 위험을 예측하는데 참조 가능토록 하였다. 또한 이 인덱스화된 지연 위험을 반영한 simulation을 통해 리스크의 분석 수준 및 활용 정도를 향상시킬 수 있다. (3) RESEARCH FINDINGS 본 연구를 통해 경험많은 엔지니어 및 프로젝트 관리자의 경험적 지식 및 주관적 의견을 원인-결과의 인과 구조된 논리 방식으로 정량화함으로써 일차원적 수치화에 의한 주관적 지식의 정량화 오류를 최소화하는 방법론을 제시하였다. 2. RESULTS 본 연구는 fuzzy relation을 통한 원인과 결과 사이의 패턴을 정량화된 관계로 형성, 인덱스화하고 이를 활용하여 공정 단위 및 프로젝트 단위의 scheduling simulation을 통해 손에 잡히는 구체적으로 수치화된 공기지연 위험을 예측하는 방법론을 제시한다. 이를 통해 부동산 개발 프로젝트에 있어 주요 위험 요소의 하나인 건설프로젝트 관리의 위험 요인에 대한 효과적인 대응이 가능할 것으로 기대한다. 3. KEY WORDS 공기지연, 프로젝트 위험, 위험 예측, 싸이클론, 시뮬레이션, 퍼지 이론(fuzzy theory)
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김정욱(Kim, Jung Wuk),윤준선(Yoon, Jun Seon) 한국부동산학회 2010 不動産學報 Vol.40 No.-
1. CONTENTS (1) RESEARCH OBJECTIVES The purpose of this study is to suggest a measurement indicator and a forecasting methodology for real estate business: based on experienced and subjective knowledge of expertise. (2) RESEARCH METHOD Development of the appropriate methodology to quantifying subjective knowledge on real estate business forecasting is the main focused area of this study. AHP (Analytic Hierarchy Process) and Fuzzy Set Theory were adopted to quantify and logically arrange the experts' knowledge. The subjective opinions which provided basis for forecasting were obtained by survey on experts in the areas of real estate and construction industry. (3) RESEARCH FINDINGS This study tried to resolve the obstacles of previous research efforts which suggested real estate business indicators based on statistical data obtained from various areas, and showed the possibility that subjective knowledge can help estimation of real estate business and decision making logically and quantitatively in this area. 2. RESULTS This study presented the measurement indicator representing the real estate business. In addition, the methodology that quantifies the amount of change in the real estate business, which is estimated qualitatively by industry experts, was provided. The indicator and the forecasting methodology presented in this research are useful for representing subjective knowledge of expertise and flexible for considering new factors and assumptions in the process of forecasting.
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김정욱(Kim, Jung Wuk),윤준선(Yoo, Jun Seon),이창석(Lee, Chang Suck) 한국부동산학회 2008 不動産學報 Vol.35 No.-
1. CONTENTS (1) RESEARCH OBJECTIVES The purposes of this paper are to introduce the theory of ethical production and quality management, to present and analyze incompetent construction cases and to suggest plans to improve environmental management and production ethics so as to prevent incompetent construction work by raising the ethics of the construction engineers. (2) RESEARCH METHOD Publications related to ethics, environment and quality were reviewed and referred, and the statements on the major construction accidents were analyzed. In addition, real estate construction ethics was investigated through interviews with the experts. (3) RESEARCH RESULTS Plans to resolve incompetent real estate construction and to raise ethics were derived through literature review and expert opinions. 2. RESULTS Causes of major construction accidents were analyzed in the aspect of construction engineering ethics and the solution to incompetent real estate construction was presented. This paper also suggested the concept of standard environmental management and the executional plan to improve the level of production ethics based on the conclusion that raising the ethics of the construction engineers would play a critical role in preventing incompetent construction.
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생태적 모델에 의한 호수의 수질예측기법 ; 의암호의 수질예측
홍욱희,김정욱 ( Wuk Hee Hong,Jung Wuk Kim ) 한국하천호수학회 1981 생태와 환경 Vol.14 No.1·2
For the water quality prediction of Lake Euiam which sites near Chuncheon City, the major pollution source in North Han River basin, a one-dimensional dynamic model, WQRRS, was applied and tested. This ecological model requires various input data such as lake geography, inflow and outflow, tribularies water quality, and meterological informations on the daily average basis, and predicts every day outflow water quality and biological information in the lake system. In 1980 simulations, the outflow water qualities coincided with the real situations. The simulation results with the increased pollution loads in the year 1991 and 2001 estimated by KAIST showed that the eutrophication problem would be more serious than the BOD increment within near future in Lake Euiam. The experience of WQRRS operation confirmed this model could be applicable to most lake systems with high reliability.
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홍상표,김정욱 ( Sang Pyo Hong,Jung Wuk Kim ) 한국환경영향평가학회 1996 환경영향평가 Vol.5 No.2
On the basis of sustainable long-term water resources planning, the development of ground water resources should be interlocked with the surface water development In considering the intertemporal equity, overpumping of groundwater may diminish or eliminate the groundwater resources stock of post-generations. Regulatory landuse zoning for groundwater resources recharge area is indispensable measures to prevent groundwater pollution. Adequate treatment of polluted water from various sources such as municipal sewage, industrial wastewater, landfill site leachate, and abandoned boring wells, is also necessary for groundwater protection. To preserve groundwater resources as common property goods, groundwater use tax should be imposed upon the large scale groundwater use. Finally, the establishment of groundwater development license system is recommended to achieve the social optimal production and to avoid external diseconomy.
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수자원(水資源) 오염 특성에 의한 불량매립지(不良埋立地) 예비평가모형(豫備評價模型) 정립
홍상표,김정욱,Hong, Sang-Pyo,Kim, Jung-Wuk 한국환경영향평가학회 1995 환경영향평가 Vol.4 No.1
To assess preliminarily the contamination potential of water resources including groundwater owing to the hydrogeological characteristics of landfill site and the potential impact to humans and animals through contamination of water resources by leachate, "Landfill Site Preliminary Assessment Model(LASPAS)" was contrived. LASPAS could help them proritization of remediation of landfil sites by the convenient and relatively simple evaluation method of landfill site features. LASPAS was designd to aliot numerical ratings to landfill site related factors undermentioned; 1) hydrogeological factors such as hydraulic conductivity of aquifer, thickness of confining layer over aquifer, topographical slope, net recharge, and subsurface containment 2) water resources contamination factors of impacts on receptors such as proximity to drinking water supply, substitutability of drinking water supply, type of use of water resources, known impact on drinking water supply, and flood potential.
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