23 research outputs found

    Subregional volume change of the orbitofrontal cortex and impaired organizational strategies in obsessive-compulsive disorder

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    Thesis (master`s)--서울대학교 대학원 :의학과 정신과학전공,2004.Maste

    Critical reviews of Korea's EIP Projects and Suggestions for Amendments to Laws

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    Analysis of neural network dysfunction during spatial working memory in first-degree relatives of schizophrenia : an event-related fMRI study

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    학위논문(박사) --서울대학교 대학원 :의학과(정신과학전공),2010.2.Docto

    A Study on Financial Feasibility of Ship Investment Project Using System Dynamics

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    ABSTRACT A Study on Financial Feasibility of Ship Investment Project using System Dynamics Choi, Jung Suk Department of Shipping Management Graduate School Korea Maritime & Ocean University Advised by Professor Lee, Ki-Hwan This study is initiated to overcome limits of current method in purchase of vessel, requiring immense amount of investment, and to stimulate virtuous cycle by introducing financial feasibility of vessel investment project. The objective of this study is to develop a dynamic and systematic vessel investment economic feasible model based on casual loop between variables affecting business performance in purchase of vessel. To achieve the objective, this study conduct establishing of financial feasibility of vessel investment model using System Dynamics method. Then perform simulation to get the dynamic DCF. Finally conduct comparison analysis with the commonly used DCF method. Formerly, feasibility studies related to purchase of vessel was not actively in progress, despite the critical importance of the study. Most widely used vessel investment validity method is DCF based profit estimation. This method holds limitations; under the DCF method, income and cost affecting business performance is merely estimated through fragmentary practice to project future profitability. Thus, DCF method holds limitations since the method does not fully consider future market condition. On the other side, vessel investment requires minimum investment period of 10 years, therefore enhanced realistic method to project income and cost is magnified in businesses. System Dynamics is a dynamic analysis method performing simulation, using casual loop between social phenomenon and dynamic system. Hence, system dynamic method is regarded as a realistic method since it estimates future income, cost and profitability in consideration of casual loop between various variables that could occur in a respect to vessel investment. To fulfill the above statements, system dynamics through 5 processes using financial feasibility of vessel investment project is performed. First, structure of system is set in place then income and cost factor variables in evaluation of business performance and using analysis of actual case is selected. The case used in this study is a 1,800TEU container vessel ordered by a “A Korean shipping company” Case which evaluated business performance following vessel investment of financial amortization period throughout 12 years were used in actual Empirical analysis. Based on the case, to evaluate dynamic business performance using system dynamics, 6 variables: income, cost, business performance, shipping market, world economy, financing market were selectively applied in particular model. Second, casual loop diagram between 6 variables are structured and casual relationship stream in variables affecting financial validity evaluation is examined from qualitative point of view. Prior to the structuring of casual loop diagram, relationship between income and cost which affects business performance immediately are set up and causal relationship with shipping market, financial market and world economy are identified. Besides, additional casual loop diagram is established for various variables used in projection of sub-model, bunker price and second hand vessel prices. Third, in a step to stock flow diagram, 3 main models: income, cost and business performance, 3 sub models: bunker price forecast, freight rate income forecast, second hand vessel price forecast are established and estimated value using dynamic simulation is forecasted and enhanced business performance estimation reality. Fourth, objectivity of simulated result in accordance with reality is verified by comparing the result with historic data. Variables used simulating estimation of studied model are bunker price, second hand price and government bond. results between Historic time series of variables and simulated result were 0.989, 0.916, 0.998, showing high correlationship. Furthermore, MAPEs results which is used to see coherency between historic data and simulated results came out to be 10.01%, 10.19%, 4.16%, showing suitable coherence. Fifth, Dynamic NPV result derived from such system dynamics is compared with NPV result of general DCF method. Dynamic NPV result revealed to be more conservative than the general DCF method based NPV result. It is analyzed that conservative outcome of dynamic NPV result is owing to the various factors such as depressed global economy and acceleration of unbalance between supply and demand in shipping market was reflected and improved reality in vessel investment. Under the above performed study, to overcome the limitations of commonly used DCF method in financial feasibility analysis model in purchase of vessel, SD model, a dynamic analysis method is applied and induced resonable estimation based on casual relation between variables. Additionally, a new forecast model is established for overall management of risks in variables used and future cash flow estimation is provided but it has few limitations of it’s own. First, SD evaluation method, forecasting future cash flow using results of estimation of various variables and casual loop diagram structured through qualitative decision shows difficulty in selection of variables from objective proof side. Second, limiting number of variable in studied model due to the adversity in structuring such a model and credibility of performed results is where the advantage of system dynamics was not fully utilized. Third, rather than to offer an alternative to overcome limitations of commonly used DCF method, dynamic DCF evaluation method with SD is used and could not fully surmount the limitations. Thus, conducive to improve financial feasibility of vessel investment project, diversified variables and analysis to prove objectivity needs to be analyzed. Eventually, objectivity in cash flow forecast and supplementary analysis method in accordance with reality needs to be applied to improve credibility and prediction of SD model.목 차 초 록(Abstract) Ⅶ 제 1 장 서 론 1 1.1 연구의 배경 및 목적 1 1.2 연구의 범위 및 방법 2 1.3 연구의 구성 4 제 2 장 이론적 고찰 6 2.1 선박투자 재무적 타당성 평가 6 2.2 시스템다이내믹스 11 2.3 선행연구 고찰 18 제 3 장 평가모델 구축 23 3.1 모델 구축 방법과 과정 23 3.2 모델 구축 대상과 실증분석 사례 선정 29 3.3 실증분석의 흐름과 사례개요 31 제 4 장 실증분석 38 4.1 기존 DCF방식에 의한 선박투자 재무적 타당성 평가 38 4.2 시스템 구조설정 및 구성변수 선정 46 4.3 인과지도 작성 54 4.4 시뮬레이션 모델 구축 59 4.5 시뮬레이션 모델 검증 90 4.6 시스템다이내믹스를 활용한 선박투자 타당성 평가 94 4.7 기존 DCF방식과 시스템 다이내믹스 방식 비교·분석 102 제 5 장 결 론 104 5.1 연구결과의 요약 104 5.2 연구의 시사점과 향후과제 105 참 고 문 헌 108 감사의 글 112 부록 : 시뮬레이션 모델의 수식 113Docto

    A)Study on the industrial symbiosis of industrial complexes through industrial ecology approaches

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    학위논문(박사)--서울대학교 대학원 :환경계획학과,1998.Docto

    (The)Study on the placeness by architectural surfaces

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    학위논문(석사)--서울대학교 대학원 :건축학과,2005.Maste

    Role of the China Steel Industry Analysis

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    지역환경과 지역경제의 상생을 위한 충남도 대기환경재원 개선 연구

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    1. 배경 및 목적 충남도는 우리나라 최대의 전력생산지역이자 우리나라의 주요 산업단지가 위치한 지역으로서 국가의 산업발전에 크게 기여하고 있지만, 그 과정에서 유발되는 다양하고 심각한 환경문제에 대한 정부차원의 지원과 전략이 미흡하다. 이로 인해 충남도의 지역환경은 오염물질이 과도하게 배출됨에 따라 환경이 악화되면서 지역주민들의 건강과 재정이 위협을 받게 되었다. 이러한 환경오염 양태는 경제성장은 다른 곳으로 이전되고 오염물질만 주변 지역에 남는 전형적인 환경문제의 외부화 현상으로 설명될 수 있으며 이의 내부화를 통한 교정이 필요하다. 현재 충남에 입지한 대규모 화력발전소와 민간 화학산업 및 제철산업 단지에서 발생하는 대기오염으로 인한 피해를 줄이고 더 나아가 충남도의 적극적이고 지속가능한 대응전략을 마련하고 추진하기 위해서는 추가적이고 확고한 재원이 필요하다. - 이후 생략제1장 서 론 제2장 이론적 고찰 제3장 현황 및 문제점 제4장 개선방안 제5장 결론 및 정책제

    내포신도시 스마트도시 구현을 위한 시범사업 발굴

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    본 연구는 충남도청이 입지하면서 개발이 진행 중인 내포신도시를 대상으로 스마트도시 정책 추진 방향을 살펴보고, 향후 내포신도시에서 스마트도시 사업을 추진할 때 고려할 정책 방향을 설정하고, 그에 따라 추진 가능한 사업 아이템을 도출하는 연구이다.제1장 서론 1 1. 연구의 배경 1 2. 연구의 목적 3 3. 연구의 방법 3 제2장 스마트도시 정책 및 선행 연구의 검토 5 1. 스마트도시의 개념 5 2. 스마트도시의 정책 동향 7 1) U-city 정책 7 2) 스마트도시 정책으로 전환 10 3. 정부 부처별 정책 추진 현황 11 4. 스마트도시 관련 선행 연구의 검토 19 제3장 내포신도시의 스마트도시 조성 여건과 조성 방향 27 1. 내포신도시 조성 현황 27 2. 스마트도시 조성의 필요성 34 3. 스마트도시 사업 추진 방향 35 1) 스마트도시 관련 계획의 검토 35 2) 스마트도시 개발의 고려 요인과 개발 방향 39 3) 국내외 스마트도시 추진 사업 사례 43 제4장 내포신도시의 스마트도시 시범사업 발굴 55 1. 스마트도시 시범사업 발굴의 전제 조건 55 1) 정부정책과 연계 가능한 사업의 발굴 55 2) 내포신도시 개발전략과 연계된 사업 발굴 56 3) 내포신도시의 문제점과 잠재력을 고려한 사업 발굴 58 2. 내포신도시 스마트도시 시범사업의 제안 65 3. 스마트도시 시범사업의 추진 방안 104 제5장 내포신도시 기반시설의 효율적 활용방안 107 1. 도시관제센터 기능 확대 방안 107 2. 스마트도시 전문 조직 설치 방안 108 3. 주변 지역 통합적 기반시설 관리 방안 111 제6장 연구의 결론 및 후속 제안 113 1. 연구 결론 113 2. 후속 제안 114 참고문헌 11
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