• 한국철도학회:학술대회논문집
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• 한국철도학회 2003년도 춘계학술대회 논문집
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• pp.315-320
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• 2003

Selecting a railroad line requires the comparative evaluation of various elements. As a systematic approach to this selection it will be necessary to apply the VE study and the LCC analysis. This study proposes a methodology for selecting the optimum line of the ralroad using VE-LCC analysis. The VE study is performed by following four steps : Information analysis, Function analysis, Alternative evaluation, and Optimum plan selection. The economics evaluation in VE study is using LCC analysis and Sensitivity analysis. Cost items in LCC analysis are classified into bridge, tunnel, rail, and earthwork. We could select the optimum alte-rnatives considering not only cost elements hut also various evaluation element in VE-LCC analysis. The synthetic evaluation process of relative value composition and weighted matrix evaluation

• Journal of Preventive Medicine and Public Health
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• 제41권2호
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• pp.69-73
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• 2008

To curb a rapid increase in expenditures for pharmaceuticals, the Korean government introduced a positive list system and a negotiation process for drug prices at the end of 2006. Economic evaluation of pharmaceuticals has begun to have a pivotal role in the listing and pricing of drugs for the Korean National Health Insurance. There are some points to discuss regarding the use of economic evaluation in the listing and pricing in the context of the Korean system. First, the listing and pricing processes have been fragmented, evoking complaints from pharmaceutical companies and delaying the access of new drugs to patients. Second, there is a concern that the positive list system may limit the range and availability of drugs for patients to choose for treatment. Third, the time schedule for de-listing of existing drugs may not be realistic. Fourth, it is not always easy to provide reliable evidence of cost-effectiveness due to a lack of materials. Fifth, there is no consensus on the range of the ICER (incremental cost-effectiveness ratio) acceptable to the Korean society. In conclusion, in the near future, it will be necessary to evaluate the achievements that the economic evaluation has provided to the Korean society.

• 한국실내디자인학회논문집
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• 제20권2호
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• pp.3-9
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• 2011

In this study, the change of critical elements of the design evaluation was investigated during two decades at the architectural competition which was held nationwide in Germany. Specifically, the periods of investigation span both from July 1989 to June 1990 and from July 2009 to June 2010. The results of the analysis show that the cost of construction, the maintenance cost, the design of facade and the energy conservation are being magnified for the new important elements. The images of buildings and the economic aspects are meant to be high. The frequency of the critical elements for interior spaces is approximately two times more important than those for the forms and outdoor spaces. Overall, many juries of the architectural competition in Germany were interested in the elements for interior spaces. The field of function accounts for roughly the half of four basic architectural fields such as function, others, aesthetic and construction fields. The critical elements are required persistently such as context, Circulation, organization of space, form, landscape and outdoor space design, arrangement of building, cost of construction, function, design of facade, location of main entrance. These items are regarded as the most important elements of the design evaluation at the competition. Knowing the change of critical elements of the design evaluation, we can understand the trend of architecture in Germany. The results of this study can be applied in Korea to develop the critical elements of design.

• 한국임상약학회지
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• 제28권1호
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• pp.40-50
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• 2018

Objective: This study presented the analysis period, the complexity of combined therapy and comparator choice as the key limitations in the economic evaluation of new drugs, and discussed programs for coping with these limitations. Methods: This study evaluated the post-evaluation, risk-sharing agreement, extra funding program, and flexible incremental cost-effectiveness ratio (ICER) threshold as actions or programs that would increase accessibility to costly new drugs. The study also presented the cases of other countries. The application of the post-evaluation was considered to deal with high uncertainty regarding new drugs. Results: The risk-sharing agreement was introduced in European countries as well as South Korea and has been responsible for the shift from using the financial schemes to outcome-based schemes. The drug funding program has had troubled in securing stable extra funds. The application of higher ICER in the economic evaluation of expensive and innovative oncology drugs was criticized because of the inequity between oncology patients and patients with other diseases. Conclusion: Therefore, introducing and applying actions that would increase the accessibility to costly new drugs in South Korea have been deemed necessary after careful reviews and discussions with various stakeholders (insurer, policy makers, pharmaceutical companies and patients).

• 한국입자에어로졸학회지
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• 제18권4호
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• pp.109-127
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• 2022

Recently, low-cost particulate matter (PM) sensors have been widely used in monitoring mass concentration. Maintaining the accuracy of the sensors is important and requires rigorous performance evaluation and calibration. In this study, two commercial low-cost PM sensors(LCS), Plantower PMS3003 and Plantower PMS7003, were evaluated in the laboratory and field with a reference-grade PM monitor (GRIMM 11-D). Laboratory evaluation was conducted with single/mixed particles of PSL (Poly Styrene Latex) in an acrylic chamber at 20℃ and relative humidity of 20%. Field evaluation was conducted inside a building of Yonsei University (Shinchon) from February 12 to March 31, 2022. In both evaluations, LCS measured values became different from reference measured values when the relative humidity was high or the outdoor air PM10/PM2.5 ratio was high. Based on the field evaluation, the LCS measured values were corrected through four different regression analysis models. As a result, the multivariate polynomial regression analysis model showed highest matching with the reference PM monitor (PM2.5 >0.9, PM10 >0.85). In this model, the PM10/PM2.5 ratio and relative humidity were chosen as independent variables.

• 한국산업융합학회 논문집
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• 제25권6_2호
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• pp.1017-1027
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• 2022

Development of social overhead capital (SOC) requires huge national finance, and performance issues such as cost-efficiency, safety, and environment have been constantly raised. However, currently each construction client has limited access to its own projects' performance without analytic methodology for industry-level comparisons and benchmarking for improvement. To overcome this problem, this study proposes a comprehensive performance analysis framework for post-evaluation of large-scale construction projects. To this end, this study performed a case study of advanced countries (the U.S., the U.K. and Japan) and consultation with related experts to develop a tailored performance analysis framework for the Post- Construction Evaluation and Management system in Korea. The developed framework covers three categories (project performance, project efficiency, and ripple effect), nine areas (cost, schedule, change, safety, quality, demand, benefit-cost ratio, civil complaint, and defect), and 31 detailed metrics. Using industry-level project performance database and statistical techniques, the proposed framework can be used not only to diagnose excellent and unsatisfactory performance areas for completed construction projects, but also to provide reference data for future similar projects. This study can contribute to the improvement of clients' performance management practices and effectiveness of construction projects.

• Journal of Forest and Environmental Science
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• 제19권1호
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• pp.108-123
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• 2003

1992년 리우회의 이후 국제적으로 환경자원의 중요성이 인식되면서 환경자원에 대한 가치를 정량화하고자 하는 움직임이 본격화 되었다. 우리나라 역시 이러한 국제적인 추세에 영향을 받으면서 1990년초부터 비시장재화의 가치를 평가하고자 하는 연구가 본격적으로 시작되었다. 또한 1999년에 예비타당성조사가 도입되면서 대규모건설사업 수행 전에 환경자원의 가치까지 고려한 비용편익분석이 실제로 이루어지고 있다. 하지만 환경자원에 대한 가치평가 방법이 아직 정립되지 못한 실정이다. 본 연구에서는 환경자원의 가치 평가를 위한 이론과 주요 평가 방법을 소개하였다. 이론에서는 환경자원의 가치를 수요함수와 생산함수차원에서 검토하고 이들 두 함수가 함께 고려된 시장에서 최적 수준을 도출하였다. 평가 방법에서는 시장의 특성에 따라 대표되는 평가 방법인 여행비용법, 만족가격법, 가상가치평가법을 소개하였다.

• 대한전기학회논문지
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• 제32권2호
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• pp.33-42
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• 1983

Outage cost inclusion in operational simulation is very important subject in generation planning. Conventional discretized one in probabilistic simulation has unavoidably insufficient modeling and costly computation time. Now that the analytic operational simulation is possible, the outage cost inclusion is desired. With this inclusion the objective function of operational simulation becomes convex, so that analytic manipulation is easier. The derivation of outage cost is made in this paper, and the effects is evaluated. Further marginal cost is mentioned.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2004년도 추계학술대회 논문집 전력기술부문
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• pp.143-146
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• 2004

This paper presents a method to improve reliability by dispersed generation (DG) installation considering load types and interruption cost. The objective functions such as power losses cost, operation cost of DGS, power buy cost and interruption cost are minimized for reliability improvement and efficient operation. The several indices for reliability evaluation are improved by dispersed generation system installation.

• 정보보호학회논문지
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• 제14권1호
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• pp.25-34
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• 2004

CC(=ISO/IEC 15408)는 정보보호시스템의 국제표준이며 CC평가 및 인증체계에서는 평가기관 운영하며 평가기관에서는 적정한 평가비 산정을 위한 근거가 필요하다. 본 논문에서는 특정한 평가기관의 환경이 아니라, CC기준과 기존의 PP 및 ST만을 바탕으로 하여, 제품유형별 및 보증수준별 평가업무량 모델을 제시하였으며, 평가실무자득의 경험, 보안기능의 사용율 개념 및 기능점수방법 등을 이용하였다. 본 결과는 CC평가환경에서 정보보호제품의 평가비 및 기간의 산정을 위한 기본자료로 활용될 수 있을 것이다.