• International Journal of Naval Architecture and Ocean Engineering
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• 제8권4호
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• pp.344-359
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• 2016

Due to the increasing occurrence of maritime accidents and high-level requirements and modernization of naval wars, the concept of ship environment adaptability becomes more and more important. Therefore, it is of great importance to carry out an evaluation system for ship environment adaptability, which contributes to both ship design and classification. This paper develops a comprehensive evaluation system for ship environment adaptability based on fuzzy mathematics theory. An evaluation index system for ship environment adaptability is elaborately summarized first. Then the analytic hierarchy process (AHP) and entropy weighting methods are applied to aggregate the evaluations of criteria weights for each criterion and the corresponding subcriteria. Next, the multilevel fuzzy comprehensive evaluation method is applied to assess the ship integrative environment adaptability. Finally, in order to verify the proposed approach, an illustrative example for optimization and evaluation of five ship alternatives is adopted. Moreover, the influence of criteria weights, membership functions and fuzzy operators on the results is also analyzed.

• 농촌계획
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• 제28권4호
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• pp.127-138
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• 2022

In responding to climate change in the agricultural sector, Climate Smart Agriculture (CSA) is an approach to establish a sustainable agricultural system through comprehensive management of technology, policy, and investment. The international community is continually expanding CSA implementation, and it became more important to understand the status of the domestic agriculture system and practices that are relevant to CSA. This study explored the available CSA in domestic agricultural systems and presented the order of relative importance of CSA technology. AHP analysis is employed for the evaluation with the following criteria: productivity, marketability, adaptability, and mitigation. The relative importance is evaluated with six agricultural technologies (soil, crop management, water, energy efficiency, alternative energy, and precision agriculture) in 28 agricultural technology sectors. The results of the AHP analysis showed that 'alternative energy' was found to be a top priority among the agricultural technology sectors, and 'shallow depth drain in rice paddy' was a top priority for agricultural technology. Also, the 'marketability' in soil and water sectors, 'mitigation' in crop management, and 'adaptability' in energy efficiency and alternative energy were given higher priority. The results of this study can be used as a good source for strategic CSA preparation and application.

• 한국농공학회논문집
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• 제63권3호
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• pp.13-26
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• 2021

Recent drought events in the South Korea and the magnitude of drought losses indicate the continuing vulnerability of the agricultural drought. Various studies have been performed on drought hazard assessment at the regional scales, but until recently, drought management has been response oriented with little attention to mitigation and preparedness. A vulnerability assessment is introduced in order to preemptively respond to agricultural drought and to predict the occurrence of drought. This paper presents a method for spatial, Geographic Information Systems-based assessment of agricultural drought vulnerability in South Korea. It was hypothesized that the key 14 items that define agricultural drought vulnerability were meteorological, agricultural reservoir, social, and adaptability factors. Also, this study is to analyze agricultural drought vulnerability by comparing vulnerability assessment according to weighting method. The weight of the evaluation elements is expressed through the Analytic Hierarchy Process (AHP), which includes subjective elements such as surveys, and the Entropy method using attribute information of the evaluation items. The agricultural drought vulnerability map was created through development of a numerical weighting scheme to evaluate the drought potential of the classes within each factor. This vulnerability assessment is calculated the vulnerability index based on the weight, and analyze the vulnerable map from 2015 to 2019. The identification of agricultural drought vulnerability is an essential step in addressing the issue of drought vulnerability in the South Korea and can lead to mitigation-oriented drought management and supports government policymaking.

• 한국방재안전학회논문집
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• 제13권4호
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• pp.37-46
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• 2020

전 세계적으로 레질리언스의 중요성이 부각되고 있음에도 자연재해와 관련된 레질리언스의 단일정의는 명확하지 않은 실정이다. 그 이유는 레질리언스의 정의가 취약성, 복구, 적응력, 지속가능성과 같은 유사한 용어와 어떻게 관련되어 있는지에 대한 상관성에 대한 구체적인 정의가 없기 때문이다. 또한 국가와 지역마다 지형·지질학적 특성이 다르고 태풍과 가뭄, 지진의 재해종류가 다르듯 이에 대한 각각의 측정지표가 다르기 때문이다. 따라서 본 연구에서는 레질리언스의 정의를 본 연구의 공간적인 특성을 반영하여 '지방도로 또는 인명이나 시설물이 인접해 있는 지방도로에서 발생하는 복합재해(집중호우, 산사태, 토석류)에 대한 복원능력으로 정의하고 이를 도로중심 재난 레질리언스(DRR : Disaster Resilience focusing on the Road)로 구분하였다. 또한 도로중심 재난 레질리언스 인자의 도출을 위해 국내·외 문헌조사를 실시하였고, DRR평가체계 구축을 위한 계층구조 설정 및 AHP설문조사를 실시하였다. AHP설문 분석결과 지방도로 내부에 위치하고 있는 도로재난 직접영향인자(배수시설, 방호시설 등)의 가중치는 0.742로 나타났고, 지방도로 인근에 위치하고 있는 도로재난 간접영향인자(인구, 재산 등)의 가중치는 0.258로 나타나 도로재난 직접영향인자가 간접영향인자보다 상대적으로 높게 분석되었다.