• Journal of the Korea Safety Management & Science
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• v.9 no.3
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• pp.21-27
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• 2007

This paper analyses the effect of parameters on the consequences of the unconfined vapor cloud explosion accident (UVCE) by the release of heavy gas (xylene vapor). Simulation results showed that the overpresure was increased with the increase of the release hole diameter and with the decrease of the interested distance and the wind speed. While, the overpresure was not nearly affected by the release height, weather and environmental conditions. From the results of the consequence analysis and analysis of affecting the consequences of UVCE, the emergency plan should be established taking into account these parameters.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2012.06a
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• pp.50-51
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• 2012

The final purpose of this study is to develop a hybrid ocean power generation system which has innovate and very high efficiency performance, and which can be operated on both emergency and normal conditions. So, A survey on the electricity power consumption of residential areas at island on south coast.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 1995.10a
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• pp.769-772
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• 1995

Most turbo machines, which operate at high speeds, such as gas turbines, jet engines, pumps, and compressors are prone to perrturbing vibrations. The best vibration control method for rotors is to eliminate destabilizing factors. Careful balancing application of "more stable" oil-lubricated bearing, such as tilting pad bearings or use of anti-swirl devices in seals, are examplse of passive vibration control methods. the use of magnetic bearing is an active control method. An obvious advantage of active control is that it provides damping (or modifies system stiffness or other parameters) only when there is a need for that, i.e., in emergency states, while not affecting the rotor normal operational conditions. Moreover, active control methods provide exact position control through on-line control. In this study, a magnetic actuator, digital contrliier using DSP, and bipolar operational power supply/amplifiers were developed to show the effectiveness of reducing robot vibration. Also the curve fitting procedure to obtain the transfer function of frequency dependent component was developed. Results presented in this dissertation will provide a well-defined technical parameters in designing magnetic damper system.er system.

• The Journal of Korean Medicine
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• v.21 no.4
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• pp.3-8
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• 2000

Xiexiafa is the one of eight methodes of treatment, the purgatives of oriental medicine was originated from Shanghanlun written by Zhangzhongjing. Traditionally Xiexiafa has been used to treat constipation. But All kinds of researches on Xiexiafa made purgatives possible to use variously for the disease of internal medicine. In the research on clinical use of Xiexiafa, the results were as follow. Xiexiafa is available on emergency medicine because of instant relief. It has an ability of preventive medicine and economical effect. It was considered to treat hard to cure and chronic diseases made by Sushi, Rexie, Shuijie, Tanzhi, Xuxie etc. Considering strong side effects of Xiexiafa and patient conditions, it must be used carefully.

• Journal of the Korea Institute of Military Science and Technology
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• v.4 no.2
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• pp.70-83
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• 2001

The required standards for environmental tests for communication and electronic equipment used currently in the army are not standards into which the Korean climate and use environment are taken into consideration. But the environmental testing standards of the U.S. army at the time of its establishment(MIL-STD-810) “A” version has been used without taking into consideration the Korean domestic situation and conditions by simply translating the US standards. Adherence to these standards may limit the ability to supply materials in case of emergency since the increase in the manufacturing costs according to excessively strict standards induces an increase in the acquisition cost of military equipment, unnecessarily high maintenance and repair expenses are consumed, and stocks of parts for the military use have to be retained at all times.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2011.11a
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• pp.136-137
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• 2011

The final purpose of this study is to develop a hybrid ocean power generation system which has innovate and very high efficiency performance, and which can be operated on both emergency and normal conditions. So, A survey on the electricity power consumption of residential areas at island on south coast.

• Journal of Institute of Control, Robotics and Systems
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• v.22 no.5
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• pp.367-373
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• 2016

In this paper, range measurement performance of LRF (Laser Range Finder) module and image contrast of color CCD camera are evaluated under the aerosol (high temperature steam) environments, which are simulated severe accident conditions of the LWR (Light-Water-Reactor) nuclear power plant. Data of LRF and color CCD camera are key informations, which are needed in the implementation of SLAM (Simultaneous Localization and Mapping) function for emergency response robot system to cope with urgently accidents of the nuclear power plant.

• Proceedings of the Korea Concrete Institute Conference
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• 2005.11a
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• pp.651-654
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• 2005

Fast-setting cement is usually used for emergency repair construction of roads, bridges, buildings and so on. In this study, we tried to develop fast-setting ultra early strength mortar for prepacked concrete and evaluated the properties of fresh and hardened concrete with it. The flowability of the mortar was high enough to be easily poured into coarse aggregates. It showed high early strength development which can make it possible to use newly constructed structures within $3\~4$ hours regardless of curing conditions such as curing temperature and curing environment. And it also showed good resistance to drying shrinkage and chemical attack.

• Proceedings of the KIEE Conference
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• 2009.04a
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• pp.213-215
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• 2009

본 연구에서는 화재시 재실자의 안전한 피난을 유도하는 피난유도시설의 설치기준과 지하철역사, 대형편의점(마트), 종합병원 등 의료시설, 학교 등 교육시설과 같은 불특정 다수의 사람이 이용하는 건축물에 설치된 피난 유도등의 현장적용사례와 유지관리 실태를 조사하였다. 이러한 건축물에서 재실자의 피난에 영향을 미치는 요소, 예상되는 인명 안전 등에 대하여 분석하여 문제점을 도출하였다. 본 연구결과는 기존의 소방시스템의 문제점으로 지적되고 있는 화재 발생 위치와 확산 경로에 관계없이 획일적으로 피난 방향을 표시하고 있는 시스템의 개선을 위한 최적의 피난 경로를 표시하는 인공지능형 방향성 유도등 개발에 활용할 것이다.

• Journal of the Korea Safety Management & Science
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• v.16 no.1
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• pp.231-237
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• 2014

In order to improve participation and quick decision-making in an emergency, the Voluntary Participation Program was recommended in this study for effective management of Civil Defense. The problems in the Law and Administration group and Forced Education by Mobilization system were analyzed through actual conditions of Civil Defense management and participation. In order to improve these problems, cases such as "Extension of Participation Methods", "Cooperation Activities with Civil Groups", "Usage of Community Information" were studied. Based on the investigation results, domestic applicability was recommended.