• Journal of Environmental Science International
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• v.30 no.11
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• pp.937-944
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• 2021

In this study, water resource topics, infrastructure, water supply, users, and economic indicators based on statistical annual standards for evaluating water welfare were selected by examining domestic and foreign water resource-related indicators. The level of water welfare was evaluated relative to 23 cities and counties in Daegu and Gyeongsangbuk-do using data from the Statistical yearbook, and places with high value of indicators urbanization and large populations were excellent in the infrastructure field, but overall analysis showed that small and medium-sized cities had higher levels. It is judged that it is necessary to develop continuous research and indicators that can evaluate and quantify the level of physical welfare that the people can feel by utilizing the results of this study. In future studies, it is necessary to systematically evaluate the level of water welfare by local governments in Korea through more diverse evaluation items and detailed indicators for each item so that it can be used as basic data for realizing water welfare.

• Geomechanics and Engineering
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• v.30 no.2
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• pp.211-218
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• 2022

This study characterizes Proctor and geophysical properties in a broad range of grading and fines contents. The results show that soil index properties such as uniformity and fines plasticity control the optimum water content and peak dry unit trends, as well as elastic wave velocity. The capillary pressure at a degree of saturation less than S = 20% plays a critical role in determining the shear wave velocity for poorly graded sandy soils. The reduction in electrical resistivity with a higher water content becomes pronounced as the water phase is connected A parallel set of compaction and geophysical properties of sand-kaolinite mixtures reveal that the threshold boundaries computed from soil index properties adequately capture the transitions from sand-controlled to kaolinite-controlled behavior. In the transitional fines fraction zone between F_F ≈ 20 and 40%, either sand or kaolinite or both sand and kaolinite could dominate the geophysical properties and all other properties associated with soil compaction behavior. Overall, the compaction and geophysical data gathered in this study can be used to gain a first-order approximation of the degree of compaction in the field and produce degree of compaction maps as a function of water content and fines fraction.

• 한국지구물리탐사학회:학술대회논문집
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• 2010.10a
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• pp.129-132
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• 2010

• 한국지구물리탐사학회:학술대회논문집
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• 2010.10a
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• pp.125-128
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• 2010

• Journal of Korean Institute of Fire Investigation
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• v.7 no.1
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• pp.83-90
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• 2005

To minimize the loss of life and economic about the underground cable fire disaster and ship fire, fabricated with plastics, the government makes effort and regulations. Therefore, the theories, mechanism and environmental effect of the flame retardant was described in this study.

• Proceedings of the Korean Society of Disaster Information Conference
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• 2017.11a
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• pp.309-310
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• 2017

본 연구는 대한민국의 나날이 증가하는 범죄에 대한 문제의식을 바탕으로 주요 강력범죄 중 여성을 대상으로 삼는 범죄의 심각성에 대하여 초점을 두고 있다. 특히 4대 강력범죄 중 살인, 강간의 경우 여성이 피해자가 되는 경우가 매우 높게 나타나고 있으며, 최근 데이트 폭력 및 몰카범죄 등이 심각한 사회문제가 되고 있는 실정이다. 이에 여성을 대상으로 하는 범죄의 경우 다양한 기술이 결합된 CPTED를 활용하여 사회적 안전 확보 및 효과적인 환경설계를 통한 범죄예방 방안에 대하여 연구하였다.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2010.10a
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• pp.246-250
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• 2010

• Korean journal of aerospace and environmental medicine
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• v.30 no.3
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• pp.95-99
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• 2020

Coronavirus disease 2019 (COVID-19) reduces airline passengers, which leads to a sharp decline in airline sales. They are concerned about the dismissal or unpaid leave of the flight pilot and crew, and the management of the passengers is also under great stress. Stress management methods for COVID-19 can be divided into general stress management such as 'Let's change me', 'Let's find the source of life', and 'Let's ask for help', and mental health management in a disaster situation.

• Proceedings of the Korean Society of Disaster Information Conference
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• 2022.10a
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• pp.339-340
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• 2022

운전자가 필요없는 완전한 자율주행 시대에 있어, 자율주행 차량에 탑승한 사람의 상황인지 측면에서 불안감을 예측하고 이를 저감하는 방법은 매우 중요하다. 본 논문에서는 탑승자의 불안감을 유발시키는 자율주행 환경 요인으로 도로 환경, 차량의 내·외부 환경, 자율주행 제어 환경의 3가지 요소가 도출되었고, 각 요소에서 탑승자의 불안감을 유발시키는 세부 요인들을 도출하여 분석하였다.

• Proceedings of the Korean Society of Disaster Information Conference
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• 2022.10a
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• pp.128-129
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• 2022

본 연구는 통합관제센터 구축시 범죄예방환경설계(Crime Prevention Through Environmental Design, 이하CPTED)의 효과적인 기능과 운영 그리고 유관기관과의 협력을 위한 거버넌스의 측면과 향후 CCTV를 활용하는 방안을 마련하는 것이다.