• 대한건축학회논문집:계획계
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• 제34권12호
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• pp.3-12
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• 2018

The purpose of this study is to draw implications for revitalizing public-private partnership system that can reduce the financial burden of the government and utilize the creative know-how of the private sector by analyzing the cases of public building construction projects by public-private partnership method in Japan. In this study, first of all, I looked at the current state of public-private partnership policy in Japan and then selected 8 representative projects as an analysis target. Next, in order to grasp the specific situation that is aimed at securing publicity and revitalizing private participation, I analyzed the role sharing between public and private sectors in the maintenance and management of public buildings, and examined the conditions for private revenue facilities. As a result of the analysis, the following implications were drawn. First, the methods of public building construction by public-private partnership in Japan are largely divided into BTO method based on the PFI method, and the method of installing public facilities and private revenue facilities based on the term leasehold rights system. Second, measures were taken to mitigate the burden of the state and local governments in establishing public facilities. Third, the public has delegated to the private sector actively about the role that the private sector can play, expanding the role of private sector widely from design to operation in the public building construction projects. Fourth, in order to actively participate in private sectors and promote regional revitalization, private profit-making projects are widely accepted, but consideration has been given to guarantee a certain level of publicity.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2002년도 학술대회지
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• pp.306-310
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• 2002

1990년대의 우루과이 라운드 협정과 최근에 시작된 뉴라운드 협상 등에 의한 건설시장의 세계화 추세는 해외건설시장을 질적${\cdot}$ 양적으로 변화시키고 있다. 세계화된 건설시장은 건설업체에게는 해외건설시장의 수주규모를 확대시킬 수 있는 기회를 제공하기도 하지만 해외건설사업 진출에 따른 리스크도 급격히 증가시키는 양면성을 갖고 있다. 일례로 ENR에 따르면 해외건설사업에 진출하고 있는 세계 상위 225대 건설업체들 중 $13.9\%$ 가량이 손실을 경험하고 있으며, 년간평균 수익률 또한 지속적으로 하락하고 있다. 이로 인해 최근 일부 국내 건설업체들이 해외진출을 기피하는 경향까지 보이고 있다. 그러나 한정된 국내건설시장의 한계를 극복하고 건설산업을 지속적으로 발전시키기 위해서는 해외시장 진출에 적극적인 자세를 갖는 것과 함께 수익성을 높일 수 있는 전략을 수립하는 것이 필요하다. 본 연구는 해외건설사업의 수익성에 영향을 미치는 리스크에 대한 체계적인 대응전략을 마련하기 위한 연구의 한 단계로서 지난 35년 간의 해외건설공사의 수익성 추이를 살펴보고, 국내업체가 수행한 59개 해외건설공사를 대상으로 설문 및 방문조사를 실시하여 해외건설공사의 수익성에 영향을 미치는 주요인자를 규명하였다. 여기서 도출된 주요인자들은 향후 해외건설사업 수행을 위한 정형화된 리스크 관리기법 개발을 위한 기초자료로 활용될 것이다.

• 한국경제지리학회지
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• 제20권1호
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• pp.105-120
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• 2017

충주 기업도시는 2005년에 시범사업 지역으로 선정되어 2020년 완공을 목표로 하고 있다. 본 연구의 목적은 선진국 기업도시의 성공요인을 토대로 충주 기업도시의 발전 전략 및 활성화 방안을 제시하는데 있다. 충주 기업도시는 충청북도의 신성장 동력산업인 첨단지식 산업 중심 클러스터와 주변의 뛰어난 자연 환경을 배경으로 친환경 웰빙 자족도시로 성장시킬 예정이다. 충주 기업도시가 성공하기 위해서는 기업, 대학, 지자체, 정부 등 개발 주체 사이의 협력이 중요하고, 선도기업과 연구 기관을 유치해야 하며, 비영리 전담기구를 설치해야 한다. 충주 기업도시의 성공적 개발은 수도권 과밀화와 국토 불균형을 해결하는 지역균형개발 정책의 성공을 의미한다.

• 한국BIM학회 논문집
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• 제7권3호
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• pp.40-48
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• 2017

It only takes one failed project to wipe out an entire year's profit, when the projects are not managed efficiently. Additionally, escalating costs of materials and a competitive local construction market make subcontractors a challenge. Subcontractors have finite resources that should be allocated simultaneously across many projects in a dynamic manner. Significant scheduling problems are posed by concurrent multi-projects with limited resources. The objective of this thesis is to identify the effect of productivity changes on the total cost resulting from shifting crews across projects using a descriptive model. To effectively achieve the objective, this study has developed a descriptive cost model for a subcontractor with multi-resources and multi-projects. The model was designed for a subcontractor to use as a decision-making tool for resources allocation and scheduling. The model identified several factors affecting productivity. Moreover, when the model was tested using hypothetical data, it produced some effective combinations of resource allocation with associated total costs. Furthermore, a subcontractor minimizes total costs by balancing overtime costs, tardiness penalties, and incentive bonus, while satisfying available processing time constraints.

• Journal of Information Processing Systems
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• 제14권2호
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• pp.487-498
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• 2018

The purpose of the high-speed railway construction is to better satisfy passenger travel demands. Accordingly, the design of the train working plan must also take a full account of the interests of passengers. Aiming at problems, such as the complex transport organization and different speed trains coexisting, combined with the existing research on the train working plan optimization model, the multiobjective bi-level programming model of the high-speed railway passenger train working plan was established. This model considers the interests of passengers as the center and also takes into account the interests of railway transport enterprises. Specifically, passenger travel cost and travel time minimizations are both considered as the objectives of upper-level programming, whereas railway enterprise profit maximization is regarded as the objective of the lower-level programming. The model solution algorithm based on genetic algorithm was proposed. Through an example analysis, the feasibility and rationality of the model and algorithm were proved.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년도 제37회 하계학술대회 논문집 A
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• pp.398-399
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• 2006

The procurement of generation and transmission/Distribution capacity in vertically-integrated electric industry is sufficient by facility construction in suitable time. However, the introduction of competitive electricity market increase the efficiency of availability for facilities and fuels. As a result, long-term capacity procurement is required for stable demand-supply balance since it is expected to maintain their generation capacity at a minimum for profit maximization. In this paper, a new long-term capacity procurement mechanism is proposed, which is able to assure supplemental contribution in competitive electricity market.

• 설비공학논문집
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• 제15권2호
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• pp.116-125
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• 2003

The new HVAC system to lower the conveyance energy and building height using IAV (Increasing Air Volume) technique is developed. IAV units which are equipped in each zone carry out air-conditioning and supply fresh air by induction of outdoor air in main duct. The design program which decides size of OAHU and IAV unit according to air conditioning load and fresh air demand of each zone is presented. The control system is developed to operate efficiently HVAC system and IAV unit, so that individual zone operation and well-deal with partial load and IAQ problem are possible. The new system is investigated in model building and makes more profit in conveyance energy, size of air conditioning facilities room and building height than VAV system. But in construction cost it is worse by about 15 per-centage.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2009년도 춘계학술대회
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• pp.531-539
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• 2009

The environment of automobile industry in the world is rapidly changing. It is changing of high oil price, technology, environment and construction of competition by newly rising an economic district. Automobile company is focusing on three issue because they want to reinforce competition of automobile industry in the world. That is innovation of production profit management through quality management and Lean. Chance of success is separated in R&D, providing distribution, manufacture, distribution, selling in automobile industry. Emphasis on development process, distribution process, manufacture process, circulation and selling process for strengthening the competitiveness and guarantee. In this thesis, we try to analysis the data set period of automobile production by using survival analysis. While using mean comparison of general statistics commit mistakes, survival analysis can used for including censored data in order to heighten analysis efficiency.

• 한국컴퓨터정보학회논문지
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• 제7권4호
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• pp.182-187
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• 2002

본 논문은 최근 다양한 인터넷 활용 기법을 적용하여 국한된 사무자동화에 대한 업무의 효율적 향상을 위해 많은 노력을 아끼지 않고 있다. 이에 대한 본 논문은 웹 관리 시스템 설계 및 구현을 바탕으로 기업 내 업무의 효율성을 기하기 위해, 인트라넷 구축과 이를 웹 기반 시스템으로 업무를 연장시켜 기업의 생산적인 이익을 창출하기 위한 전자상거래 시스템으로 구현함을 제시하고, 그에 따른 보안문제와 기업업무 적용차원에서 타당성을 분석하였다.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2003년도 춘계학술대회 논문집
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• pp.890-894
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• 2003

This paper discuss basic functional construction and plant layout of a ELV dismantling system that can maximize the reusability of tarts and the recoverability of materials by dismantling ELV rationally and efficiently. "Island" type was selected for the system configuration considering processing amount, economical efficiency, and effectiveness. The system is supported by the information system, and composed of dismantling stations and handling equipments. The layout of the stations was determined after simulation and optimization using commercial software package, Arena and OptQuest. The objective of the optimization was maximum profit while the system capacity is considered as constraint. The environmental load of ELV can be minimized when the composition and function of each station are embodied in detail and the system is interfaced with shredding operation.