• 한국신재생에너지학회:학술대회논문집
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• 2010.06a
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• pp.152.1-152.1
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• 2010

최근들어 기후변화와 자원부족이 현실적 위협으로 등장하면서 에너지와 환경문제가 국가경제의 미래를 결정하는 주요변수로 부각되고 있다. 이는 환경이 경제성장의 제약요인이 아닌 지속성장을 가능하게 하는 새로운 기회요인으로 전환되었음을 의미한다. 이러한 이유로 미국 EU 일본 등 선진국들은 녹색시장을 선도하기 위해 자신들의 국력을 집중하고 있다. 우리나라는 고유가로 인한 자원부족과 기후변화 위기를 극복하기 위하여 미래지향적인 저탄소 녹색성장을 새로운 국가비전으로 제시(815 경축사)한 바 있으며, 녹색성장은 신성장동력과 일자리 창출을 주도할 수 있는 신국가발전 패러다임으로 자리잡았다. 이에 따라 에너지분야의 국가정책을 주도하기 위한 일환으로 그린에너지기술의 국가별 협력체계 구축을 통해 에너지기술개발 대안 수립이 필요하다. 우리는 선진국과 기술수준을 비교할 때 상대적으로 기술개발 후발자(follower)로서, 효과적으로 그린에너지기술을 개발하기 위해서는 선진국과의 국제협력이 현실적인 대안이라고 할 수 있다. 본 연구에서는 AHP기법과 SM기법을 복합적으로 활용하여 12대 그린에너지기술의 국제협력을 위한 영향요인 발굴 및 평가에 적용하였고, 각 기술별 전략품목에 대한 평가를 통해 국제협력 우선순위를 산정하였다. 영향요인으로는 국제협력유형, 기술개발 시급성, 기술수준, 시장성, 수출성을 고려하였으며, 평가결과는 CCS가 가장 높은 것으로 나타났다. 다음으로 그린카, 전력IT, IGCC가 상위권 그룹에 속하는 결과를 도출하였다.

• Journal of Digital Convergence
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• v.13 no.4
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• pp.311-317
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• 2015

It is important to analyze and offer specialized start-ups effect factors for collegians in order to systematically and successfully support technology-centered start-ups of collegians, whose social experience is insufficient. However, consistently changing start ups environmental analysis is difficult, which can be a problem, because technology-centered start-ups factor analysis is carried out depending on statistical package. This paper proposes an ATSA system that demonstrates effect factors on technology-centered start-ups decision making as a hierarchial structure by using AHP, inputs the effect factors to judgment matrix after pre-processing, calculates standardized values and weights, verifies consistency, and draws priorities through weights integration. It was confirmed that the ATSA system can efficiently support decision making for technology-centered start-ups by quantitatively analyzing qualitative factors through experiments by applying multi-criteria decision making to the analyses of start-ups founders' internal and external factors and various start-ups environments.

• Journal of Korea Port Economic Association
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• v.27 no.2
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• pp.39-57
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• 2011

Recently Incheon Port and Pyeongtak·Dangjin Port called as Capital Region Ports have enjoyed ever-increasing cargo volumes. However, there is a lack of research on this region while plenty of outputs were suggested on mega hub and regional hub ports in terms of shipping companies and stakeholders' port choice criteria. To identify and evaluate the Capital Region Ports, this paper identifies the factors and sub-components influencing their port choice and presents a structure for evaluating them. Based on the literature related to port selection and competition, a regional survey employed Factor Analysis to reveal that 'port facility and link', 'cost and service', 'port hinterland' and 'information service and port operation policy' are the determining factors in these regions. From the overall evaluation using Fuzzy Theory, Port of Incheon Port obtained high score compare to that of Port of Pyeongtak Dangjin.

• Journal of Korea Water Resources Association
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• v.42 no.3
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• pp.177-190
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• 2009

Rehabilitation projects for old water mains typically require considerable capital investments. One of the economical ways of pursuing the rehabilitation projects is to focus on a specific area within the entire region under management. In this paper the hierarchical clustering methods that analyze spatial inter-relationship of location data are applied to about 8,000 water leak location data recorded in a case study area from 1992 to 1997. Among the hierarchical clustering methods Single, Complete, and Average Linkage Methods are used to identify clusters of the water leak locations and to divide the area according to the defined clusters. By comparing the clusters identified by the clustering methods, the best clustering method for the case study area is suggested. Prioritization of the area for maintenance is obtained based on the water leak incident intensity for the clustered area using the suggested best clustering method.

• Korean Journal of Construction Engineering and Management
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• v.5 no.2 s.18
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• pp.136-143
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• 2004

This study presents a risk management methodology using fuzzy theory for early construction stage and is focused on risk identification and risk analysis. This study identifies various risk factors associated with activities clearly construction stage, then establishes the Risk Breakdown Structure(RBS) by classifying the risks into the three groups; Common risks, risks for Earth works, and risks for Foundation works. The risk analysis method presented in this study is based on the RBS that has two levels such as upper level and lower level. The risk exposure of lower level risk factors is assessed by fuzzy inference. The weight of risks is estimated by fuzzy measure. Then, the estimated risk exposures and weights are aggregated to assess the risk exposure of upper level risks by Choquet fuzzy integral. The risk exposure of upper level risks determine the priority of risk factors in view of risk management. This study performs case study to validate the proposed method. The result of case study shows that the methodology suggested in this thesis would be utilized well in evaluating risk exposure.

• Journal of the Korea institute for structural maintenance and inspection
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• v.17 no.5
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• pp.122-129
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• 2013

In this study, the risk factors which derive from the ground condition of typical construction sites are put forward. In order to prioritize the risk elements, the analytical method of AHP was used. The result of using a weighting factor for each risk analysis showed that if the constituency index is less than 0.1, then reliable results and priorities for each of the risk elements can be calculated using the AHP method. From now on, if the range of measured value can be established, the risk or safety value of concrete structures for power lines can be applicable.

• Journal of KIISE:Computing Practices and Letters
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• v.15 no.9
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• pp.695-699
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• 2009

In this paper, we propose an automatic prostate segmentation technique using image intensity and gradient information. Our method is composed of four steps. First, rays at regular intervals are generated. To minimize the effect of noise, the start and end positions of the ray are calculated. Second, the profiles on each ray are sorted based on the gradient. And priorities are applied to the sorted gradient in the profile. Third, boundary points are extracted by using gradient priority and intensity distribution. Finally, to reduce the error, the extracted boundary points are corrected by using B-spline interpolation. For accuracy evaluation, the average distance differences and overlapping region ratio between results of manual and automatic segmentations are calculated. As the experimental results, the average distance difference error and standard deviation were 1.09mm $\pm0.20mm$. And the overlapping region ratio was 92%.

• Journal of Labour Economics
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• v.34 no.3
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• pp.29-58
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• 2011

Using careful background research and methodology, we proposed a revised sectoral index of vulnerability that is directly applied to two central labor examples: working hours and minimum wages. The valued calculated by each specific index represent the degree of weakness in corresponding conditions at the level of workplace units. Our proposed vulnerability index promises to be applicable to all business units under labor spot inspection. Also, it can be easily updated as the business environment evolves. The index is useful in selecting certain groups of business units and in evaluating the effectiveness of each regional government office.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2004.04a
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• pp.451-456
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• 2004

This study was performed to analyze the operation system of transfer crone to improve the reality of yard operation roles in container terminal and present the applicable method of operation rules to apply the operation priority. And we derived the procedure to estimate the maximum number of waiting truck based on the waiting of truck and the occupancy of driving lane in yard, and analyzed the constraint state of space. To solve the space constraint, we provided a multi-job principle to define the space resource and described the solution and sequence diagram for the principle.

• Proceedings of the KIEE Conference
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• 2006.11a
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• pp.204-206
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• 2006

구조개편 이후로 수요관리 프로그램에 매년 막대한 재원이 투자되고 있으나, 수요관리 프로그램별 포트폴리오 구성에 대한 연구가 이루어져 오지 않았다. 지금까지의 수요관리 목표량은 과거 보급실적이나 전년도 실적을 근거로 단순히 추정하는 수준이며, 수요관리 프로그램 유형별, 세부프로그램별 보급 우선순위가 체계적으로 정해져 있지 않다. 본 논문에서는 효율개선 프로그램의 고효율기기에 대한 수요관리 목표량을 운영상의 경제적인 이득을 얻을 수 있는 관점에서 해석하여 수요 관리 목표량을 선정한다.