• Journal of the Speleological Society of Korea
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• v.44 no.45
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• pp.65-71
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• 1996

동해시 천곡동에서 발굴된 천곡동굴은 석회동굴인 동시에 느린 경사로 된 수평 동굴이다. 본 연구에서는 이 동해천곡 동굴의 현황은 물론 특히 이 동굴이 어떻게 태어났으며 어떤 과정을 밟아 오늘의 동굴생태를 이루고 있는가를 연구하였다. 이 조사연구는 1991년 여름부터 지금까지 무려 10회에 달하는 학술조사, 개발타당성 조사. 그리고 개발계획조사 그리고 환경보전 진단의 조사에 참가하면서 수록한 것이다.(중략)

• 한국경영정보학회:학술대회논문집
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• 2007.11a
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• pp.35-42
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• 2007

본 연구는 정보화 사업 및 전자정부 사업 평가를 위한 표준모델과 통합성과지표를 제시하고 관련법 검토와 중앙행정기관의 담당 공무원들의 설문조사를 토대로 이의 타당성을 검증하기 위한 연구이다.

• Proceedings of the Korea Technology Innovation Society Conference
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• 2015.11a
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• pp.867-883
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• 2015

• Korea Petroleum Association Journal
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• no.9 s.43
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• pp.37-47
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• 1984

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.329-332
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• 2003

The Ministry of Construction and Transportation has estimated the reconsideration of economy in construction and the dullness of LCC forcast method which supports decision-marking in safety and maintenance of buildings. So, they have introduced LCC analysis method in steps of a feasibility study and design. Because of the introduction of LCC analysis process and method, it would be possible to make a logical decision from management maintenance, estimation, user point of view. In this study, it would bepossible to show a plan and alternative of design factors and structure in one building by using LCC analysis method and to compare and analyze the reduction of life circle cost bi the elapsed time.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.31 no.2D
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• pp.315-322
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• 2011

The Korea government set a Act called as Before and After Study for a huge SOC projects in order to check their feasibility again at the time of design, construction and completion period. However, the evaluation items and analysis method are so vague that its effectiveness has been challenged. Especially railroad projects need to be evaluated differently by railroad construction types and rolling stocks. This paper suggests the evaluation items as a common items and exclusive items on the type of construction and rolling stocks. Also data collection in the standardized form and GIS techniques and are introduced to analyze evaluation items effectively.

• Journal of Korean Society of Transportation
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• v.16 no.2
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• pp.37-51
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• 1998

본 연구는 수도권 남부의 일부지역을 대상으로 시뮬레이션 기법을 이용하여 ITS 서비스 도입효과를 분석함으로써 그 잠재력을 타진해 보고, 특정 ITS 서비스 도입전의 타당성조사에 활용 가능한 시뮬레이션 분석의 사례를 제시하는 것이 목적이다. 본 연구에서는 ITS의 핵심분야인 교통관리(ATMS)와 교통정보제공(ATIS)의 일부 서비스를 중심으로 분석을 실시하였으며, 대상지역에 대한 분석결과에 의하면 ITS 서비스는 그 효과면에서 잠재력이 있는 것으로 파악되었다. 개별 서비스 중에서는 직접적으로 혼잡구간의 수요를 억제하는 램프미터링이 가장 높은 효과를 보였으며, 여러 서비스를 조합하여 실시하는 경우, 혼잡지점에 대한 정보제공은 선별적으로 실시하는 것이 효과적인 것으로 분석되었다. ITS 서비스가 보다 큰 효과를 발휘할 수 있는 경우는 첨두시와 같이 돌발상황이 발생하는 도로가 혼잡하되, 주변의 대안도로가 충분히 확보되어 있고 어느 정도 용량 여유분이 있을 때인 것으로 분석되었다. 본 연구에서 수행한 시뮬레이션 분석 과정은 특정지역의 ITS서비스 도입여부 결정, 도로시설 등의 구축/운영 여건 평가, 서비스 제공전략 도출 등에 활용 가능하므로 ITS 구축사업 착수 이전에 대상지역에 대한 타당성조사 작업의 일부로서 포함될 수 있을 것이다. 따라서 시뮬레이션 모형을 이용한 평가의 과정 및 각 과정별 분석기법을 체계화된 틀로 정립하는 것이 필요하다.

• Journal of the Korean Society for Railway
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• v.15 no.2
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• pp.179-184
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• 2012

Environmental impact is getting more attention in many feasibility studies for railroad-related projects and research items. For sustainable growth and green transportation, the benefits typically used for feasibility studies in railway-related projects, are composed mostly of economic criterions which is not considering growing attention on changing paradigm. Based on the analysis of current methodologies, improvements in estimating environmental impact especially on noise and pollution are suggested. Active steering bogie has been proposed to satisfy stabilizing and steering performance of railroad. This paper describes the feasibility study of the active steering bogie for a urban railway vehicle based on environment-related criteria.

• Korean Journal of Construction Engineering and Management
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• v.11 no.1
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• pp.70-78
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• 2010

Recently our country need to change about hospital building operation and business change.The recent real estate development projects are made in very complex due to the diversity of development method or its legal aspects. Under such a real estate investment, the review of investment yield rate is fundamentally important for the one that invests and the one that finances it. Previously, the focus was in the review of the time to turn the surplus or the plan for making repayment of the borrowings, and without the analysis of sufficient investment yield rate. For a simple issue of finding the most advantageous project method, there is a need for reviewing the taxation issues, fund procurement method, legal aspects, policy analysis aspects and others. Therefore, the real estate investment is now likely to encounter the form of having the time of venture as well. In conclusion, the scientific and reasonable decision making in investing on the real estate does not suggest the absolute evaluation standard but the need and the use are more and more demanded.

• Journal of the Korean Society of Food Science and Nutrition
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• v.24 no.6
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• pp.887-891
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• 1995

Nutrient intake data collected by both dietary methods of the 24 hour recall method and the food frequency method from 538 middle school students were analysed to investigate any measurement errors occuring while using these methods. Measurement errors were observed both in terms of differences of average intake and consistancy from the two sources of data used. Wilcoxon signed ranks test was used to test the differences between the two average intakes and Speraman's rank order correlation coefficient was used to test consistancy. As a result, average intake value estimated from the food frequency method tended to be higher than that from the 24 hour recall method. The degree of overestimation varies from one nutrient to another. For instance, carotene showed not only the most significant differences in average intake but also showed the most incoisistancies between the two sets of data. This may imply the validity of nutrient intake as derived from different dietary survey methods varied from one nutrient to another, therefore the selection of dietary survey methods has to be made more cautiously in the case of certainnutrients.