• 대한안전경영과학회지
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• 제19권2호
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• pp.15-29
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• 2017

In changes of social environment, change of the use of land due to the change of residence type, industry and urban structure is an influential factor to safety vulnerable social group. From PTSD from disaster experience point of view, experience of disaster, damage from disaster, witness of disaster make people experience anxiety and confusion, increase the anxiety toward disaster and lead to difficulty in daily lives. As for the result of analyzing anxiety factors regarding disaster damage potential composed of 20 items of safety manager, damage potential of sink hole which recently rapidly increased was the highest, and followed by anxiety from safety damage potential of family, anxiety from phone call damage. Likewise, if the anxiety toward disaster damage potential is digitized, it contributes to setting safety management planning for disaster prevention as it visualizes the risk.

• Journal of Information Processing Systems
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• 제14권5호
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• pp.1286-1292
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• 2018

To support and protect firefighters in the scene of disaster, this research suggests an Internet of Things (IoT) system architecture that can be configurable and applicable to firefighting and rescue in various disaster situations. The proposed approach provides increased adaptability and reusability of systems compared to existing approaches. To validate the feasibility of the approach, a system of systems based on the architecture was developed and successfully tested for a specific firefighting and rescue scenario in a given test environment.

• Structural Engineering and Mechanics
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• 제56권4호
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• pp.549-567
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• 2015

A first-order moment method (FORM) reliability analysis is commonly used for structural stability analysis. It requires the values and partial derivatives of the performance to function with respect to the random variables for the design. These calculations can be cumbersome when the performance functions are implicit. A Gaussian process (GP)-based response surface is adopted in this study to approximate the limit state function. By using a trained GP model, a large number of values and partial derivatives of the performance functions can be obtained for conventional reliability analysis with a FORM, thereby reducing the number of stability analysis calculations. This dynamic renewed knowledge source can provide great assistance in improving the predictive capacity of GP during the iterative process, particularly from the view of machine learning. An iterative algorithm is therefore proposed to improve the precision of GP approximation around the design point by constantly adding new design points to the initial training set. Examples are provided to illustrate the GP-based response surface for both structural and non-structural reliability analyses. The results show that the proposed approach is applicable to structural reliability analyses that involve implicit performance functions and structural response evaluations that entail time-consuming finite element analyses.

• 한국안전학회지
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• 제28권1호
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• pp.137-143
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• 2013

Cultural heritage passing down to posterity is a global concern. But there are many culture heritage that not remained to now disappeared by various disasters. It is told that disaster is learnt from disaster. The most fundamental task in disaster prevention is to collect and analyze cases of accidents so as not to repeat a disaster. In other words, an analysis of various disaster-related materials and their countermeasures in the Joseon period is an actual condition-based phenomenological methodology used to prevent disasters at cultural properties today. In this context, it is important to collect histories of disasters in the Joseon period, to extract disaster-related historical data and to categorize the data to build a disaster literature database. This study has produced [Database of Disasters in the Joseon Era], a collection of articles on fire outbreaks based on The Annals and The Daily Records belonging to the Memory of the World. On the basis of this chronology, human and property damages caused by fires in Joseon have been examined, identified by districts, as well as disaster technologies, have been analyzed. It has also built disaster vulnerability maps in the Joseon Dynasty Era.

• 한국조경학회지
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• 제45권6호
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• pp.90-97
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• 2017

방재공원을 주제로 하는 도시 내 응급대피 장소의 건설은 국내외 도시재해 대책에 있어 중요한 요소이다. 특히 방재 역할을 하는 도시 내 공원녹지의 접근성은 방재 서비스 효과와도 직결된다. 본 연구는 울산시 중구와 남구를 대상으로 도로망과 인구분포 및 공원녹지 지리정보와 ArcGIS 네트워크 분석 기법을 이용하여 3가지 유형의 방재공원 접근성을 분석하고, 서비스 면적율과 서비스 인구율 등 2개 지표를 통하여 울산시 방재공원녹지의 서비스 효과를 평가하였다. 평가 결과, 긴급대피 공원녹지(5분)와 중심대피 공원녹지의 접근성은 양호하지만, 긴급대피 공원녹지(3분)와 임시대피공원녹지의 서비스구역 면적과 인구는 전체의 60% 이하로 불량한 것으로 나타났다. 울산시 방재공원녹지의 전체적인 서비스 효과는 이상적이 못하기 때문에 방재공원녹지 체계에 많은 개선이 필요하다고 판단된다.

• Steel and Composite Structures
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• 제16권2호
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• pp.117-133
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• 2014

Natural vibration of truss cable structures is analyzed based upon the general structural analysis software ANSYS, energy variational method and Rayleigh method, the calculated results of three methods are compared, from which the characteristics of free-vibration are obtained. Moreover, vertical seismic response analysis of truss cable structures is carried out via time-history method. Introducing three natural earthquake waves calculated the results including time-history curve of vertical maximal displacement, time-history curve of maximal internal force. Variation curve of maximal displacement of node along span, and variation curve of maximal internal force of member along span are presented. The results show the formulas of frequencies for truss cable structures obtained by energy variational method are of high accuracy. Furthermore, the maximal displacement and the maximal internal force occur near the 1/5 span point. These provide convenient and simple design method for practical engineering.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제7권5호
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• pp.1291-1312
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• 2013

Cloud computing changes the service models of information systems and accelerates the pace of technological innovation of consumer electronics. However, it also brings new security issues. As one of the important foundations of various cloud security solutions, entity authentication is attracting increasing interest of many researchers. This article proposes a layered security architecture to provide a trust transmission mechanism among cloud systems maintained by different organizations. Based on the security architecture, four protocols are proposed to implement mutual authentication, data sharing and secure data transmission in federated cloud systems. The protocols not only can ensure the confidentiality of the data transferred, but also resist man-in-the-middle attacks and masquerading attacks. Additionally, the security properties of the four protocols have been proved by S-pi calculus formal verification. Finally, the performance of the protocols is investigated in a lab environment and the feasibility of the security architecture has been verified under a hybrid cloud system.

• 한국농촌건축학회논문집
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• 제20권4호
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• pp.53-64
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• 2018

Disasters that occur most frequently in rural areas are drought, flood, damages from wind and cold weather. In order to overcome the damage caused by natural disasters, various projects related to safety and disaster prevention. However, Government-centered disaster recovery operating system showed difficulties to utilize the natural scenery and ecological environment of rural villages. So the participation of the residents is necessary. Therefore, this study aims to find a more effective disaster recovery direction by suggesting the application method, Inhabitant-friendly improving a village environment contents in Rural Disaster Villages, for continuous disaster management. The research methods were literature analysis, interviews, and expert discussion. As a result, it was found that the rural disaster village environmental improvement facilities, inhabitant-friendly recovery system, and inhabitant-friendly village environment contents and suggests a application method of inhabitant-friendly village environment contents. The research will be used as basic data when preparing a guide for improving the environment for residents in rural villages.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제25권4호
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• pp.17-25
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• 2019

Purpose: Despite the fact that the needs for disaster emergency medical facilities to minimize casualties are increasing, research for emergency medical facilities is insufficient compared to research for DMAT investment. A management strategy for emergency medical facilities in disaster site needs to be proposed. Methods: Recently there was introduction of mobile hospital system using unit modular method, but it was found out to be used only in disaster emergency training. Emergency medical facilities in disaster site require various tasks. Examination for our research was carried out through consultations with emergency medical and mobile hospital expert because there is no practical use case to apply Emergency Medical Facilities in Korea. Result: In this research we proposed a management strategy to manage and operate emergency medical facilities composed of tent, unit module and container in the aspects of management efficiency. Implications: It is highly expected to establish a foundation for fast and accurate disaster emergency medical facilities deployment by applying the results of our research to Emergency response manual of disaster emergency medical service.

• 한국재난정보학회 논문집
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• 제13권4호
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• pp.519-528
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• 2017

국내에서도 홍수, 지진, 산사태, 화재 등의 다양한 재난재해로 인하여 이재민이 발생하고 있으며, 이 중 대다수가 이재민 임시주거시설로 대피하고 있다. 그러나 이재민 임시주거시설 내에서 개인공간을 확보할 수 있는 실내 임시주거시설의 배치와 성능에 관한 계획은 미비하다. 이에 이재민 임시주거시설 내 거주환경을 개선하기 위하여, 국민안전처에서 지정한 1인당 최소 수용면적 $3.3m^2$로 실내 임시주거시설의 모듈을 구축, 모듈의 배치계획을 진행하였으며, 실내 임시주거시설의 형태, 재료, 성능에 대한 평가 방향을 제시하였다.