• Proceedings of the Korean Institute Of Construction Engineering and Management
• /
• 2007.11a
• /
• pp.917-920
• /
• 2007

Private companies will get back their investment by leasing facilities to the government, Since act on private participation in infrastructure were changed in January 2005, BTL(Build Transfer Lease) project of introduced in the domestic construction market for the purpose of providing public facilities with the public. BTL projects is for with approximately project life cycle form plan to maintenance the success of the project totally depends on the capability and role of concessionaire. Accordingly, this study is aimed to improve in order to proceed with BTL project efficiently, a clear standard for the item of evaluation was presented.

• Korean Chemical Engineering Research
• /
• v.58 no.4
• /
• pp.550-564
• /
• 2020

Distillation columns are one of the main equipment used for the separation of chemical components in petrochemical process design. However, in spite of the efficient operation in wide range, and the advantage of data collection for equipment verification, the distillation columns are inherently known for high energy consumption and capital cost. Hence, the trade-off analysis needs to be done between investment cost and operation cost to develop the most economical distillation columns. This study was conducted using Aspen Plus, a popular process simulation program, in the pursuit of broad application by as many process engineers as possible. In this paper, design variables for optimization of distillation columns were defined to improve emphatically the design quality with reducing erratic practice of many engineers. In addition, by eliminating unnecessary reviewing step and establishing systematic and efficient procedures, the amount of time for design and human resources were minimized. Aspen Process Economic Analyzers (APEA) program was introduced in order to calculate the investment cost reliably, and the efficient systematic procedure for utilization of APEA was established.

• Journal of Korean Society of Transportation
• /
• v.24 no.5 s.91
• /
• pp.67-74
• /
• 2006

This paper proposes a way to a risk quantification of public sector comparator in the value-for-money test of the BTL (Build-Transfer-Lease) scheme in rail investment projects. Two principal risks that are project delay and budget increasing costs are identified and are empirically quantified with a case study of the Haman-Jinju link. The methodology suggested is expected to be a good reference for the similar research afterwards and also to help in settling down the scheme that is only an early stage.

• Journal of Digital Convergence
• /
• v.16 no.5
• /
• pp.185-197
• /
• 2018

The purpose of this study is to analyze the Korean ETF market, which is experiencing a rapid increase in the number of stocks, to identify the degree of investment efficiency and to present investment directions. The methodology and procedure are ETF yield, change trends, correlation and regression analysis of the ETFs traded between 2010 and 2018. As a result, the total return of domestic ETFs was 3.51%, which was lower than the KOSPI growth rate and the return on equity ETFs was 4.03%, which was low. Leverage ETF yields were below 3%, which was low. The return on bond and currency ETFs was less than 1%. The most profitable ETFs were index ETFs, followed by domestic and leveraged ETFs. This study has contributed to establishing considerations when purchasing ETFs from the viewpoint of investors. Future research will present the direction of ETF investment more precisely.

• Proceedings of the Korean Institute Of Construction Engineering and Management
• /
• 2004.11a
• /
• pp.51-58
• /
• 2004

The input-oriented project promotion system private participation in infrastructure projects currently in use in Korea has encountered difficulties in securing the primary benefits of private sector creativity problem solving and inflow of private capital. As such, the performance (or output)-oriented procurement process implemented in England and other developed countries should be evaluated for introduction. In Korea, private participation projects are currently identified as either solicited or unsolicited projects, each with different promotional procedures, the problem with these procedures is that competition is not pre-activated, the private sectors creativity is under utilized, and the rationality of project evaluations is inconsistent. Korea should, in order to raise the level of private sector creativity and efficiency, go beyond the currently applied Input Specification project promotion system to a Performance-oriented system similar to those implemented in England and other countries. To achieve this, we mate several proposals for the introduction of the performance-oriented system. We divide the main features of our proposals into three categories, including a reformed concessionaire selection system, a performance orientation in preparation of the concession agreement, and a performance orientation in contract management, and discuss each. 1'his study describes performance-oriented promotion systems in an output-focused way As this is an initial study on the introduction of performance orientation in private participation, various key points and proposals were identified. However, in the future, detailed research in technical fields and systems, legal research, and practical projects will be needed for implementation

• Proceedings of the Korea Contents Association Conference
• /
• 2006.11a
• /
• pp.493-496
• /
• 2006

The need for a system to promote the effectiveness of national R&D investment has become an important issue. Korea Institute of Science and Technology Information(KISTI) is developing National Science and Technology Information System(NTIS) to meet this need. For the consistency of IT strategy and to promote more effective IT investment the NTIS have been established Information Technology Architecture (ITA). NTIS is the system for coordination outcomes of each R&D centers. This case study's contents are the process of NTIS ITA establishment, the major contents and the effectiveness of NTIS ITA.

• Proceedings of the Korean Society for Quality Management Conference
• /
• 2006.11a
• /
• pp.170-173
• /
• 2006

본 연구는 모터 제조회사에서 모터 수명 향상을 위해 식스 시그마 방법론에 근거하여 개선한 사례연구이다. 모터 수명 향상 활동을 추진하기 위해 본 연구에서는 제조부문의 식스 시그마 프로젝트 추진절차인 Define-Measure-Analyze-Improve-Control 절차를 수행했다. 모터 수명과 연관된 불량 유형을 정의하고 불량 측정 시스템에 대한 계측시스템의 정도평가, 불량유형요인효과분석, 4Step Diagram과 같은 분석기법을 활용하여 수명에 중요한 요인도출, 중요 요인의 개선대책 수립 및 개선 확인 후 최종적으로 지속적인 신뢰성 관리 방안을 수립하였다. 본 연구는 대부분 영세한 모터 제조업체에서 모터수명 관리를 위해 많은 투자를 할 수 없는 현황을 고려할 때 신뢰성 관리의 효율적 방안을 제시한다.

• Proceedings of the Korean Institute Of Construction Engineering and Management
• /
• 2006.11a
• /
• pp.378-383
• /
• 2006

This study presents the results from an investigation into ABS to revitalize small and medium construction enterprises, and to analyze merits and demerits of ABS introduction using sensitivity analysis some realistic cases. According to some available procedures, this study suggests ABS introduction structure of new education facilities construction in BTL projects of two different types. In order to analyze the effectiveness of introduction, a model was built as new education facilities construction in this paper. In addition, this study tried to put a figure on finance interest changes by analyzing changes for earning rates and money that payed by the government. Moreover, this study also presents merits and demerits of ABS introduction.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2016.04a
• /
• pp.508-511
• /
• 2016

IT 프로젝트 수행하는 과정 중 가장 많은 시간을 투자해야 하는 부분은 요구사항 분석이다. 소프트웨어 공학에서 요구사항 분석 방법이 체계화되어 실무에서 많이 활용하고 있으며, 분석 결과로 프로그램 개발뿐만 아니라 정보시스템 관련 모든 분야에서 활용할 수 있다. 하지만 소프트웨어 중심의 요구사항 분석방법은 데이터베이스 설계에 적용하기에는 불필요한 정보가 포함 되어 잘못된 데이터 모델로 설계될 수 있다. 또한, 데이터 중심으로 필요한 요구사항을 분석하는 방법론이 없는 실정이기에 선행 연구에서 데이터 모델링을 위한 업무 요구사항 방법을 제시하였다. 선행 연구 방법은 실제로 적용할 때 절차가 복잡하고 분석에 어려움이 있어, 본 연구는 선행 연구방법의 절차를 개선하고 적용하기 쉬운 방법으로 연구하여 제시하였다. 제안한 방법을 검증하기 위해 선행 연구방법과 동일한 업무요구사항명세서를 적용하여 단계별로 업무 분석 결과를 비교하였다. 그 결과 선행 연구방법보다 절차가 간소화되어 향상된 결과를 얻을 수 있었다. 분석한 결과를 바탕으로 향후 데이터 모델링 단계에 대해 계속 연구할 예정이다.

• Journal of Digital Convergence
• /
• v.12 no.12
• /
• pp.1-11
• /
• 2014

This article has reviewed some possible factors of priority setting in the government R&D investment, and also reviewed the roles of scientific community. Recently many development countries have planned more and more large-scale researches which require huge resources. Many large-scale researches have presented strikingly poor performance records in terms of efficiency. Nevertheless, more and more large-scale researches have been selected and executed. According to this article, some factors such as attracting attention of the media and the public, enhancing national prestige, raising the technological independence for economic growth were raised. As implications for policy, this article presented a necessity of strengthening the public control for priority setting of government R&D investment. And new procedures such as public discourse and National Assembly's in-depth deliberation were presented.