• Journal of Korea Society of Digital Industry and Information Management
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• v.4 no.2
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• pp.39-47
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• 2008

As internet is spreaded widely, the number of cyber terror using hacking and virus is increased. Also the international cyber terror to the national key organizations go on increasing. If the national key organizations is attacked by the attack, the national paper, document and records are exposed to the other nations. The national paper, document and records can give damage to the nation. Especially, the unknown attack can give much damage to the nation. Therefore, this paper suggested a countermeasures on the cyber terror for the national key organizations provided the inner of the organization is safe. The uneffective item and invasion privacy item are included among the countermeasures. However the countermeasures can protect only one cyber terror to the national key organizations.

• Smart Structures and Systems
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• v.5 no.4
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• pp.369-379
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• 2009

The sudden collapse of Interstate 35 Bridge in Minneapolis gave a wake-up call to US municipalities to re-evaluate aging bridges. In this situation, structural health monitoring (SHM) technology can provide the essential help needed for monitoring and maintaining the nation's infrastructure. Monitoring long span bridges such as cable-stayed bridges effectively requires the use of a large number of sensors. In this article, we introduce a probabilistic approach to identify optimal locations of sensors to enhance damage detection. Probability distribution functions are established using an artificial neural network trained using a priori knowledge of damage locations. The optimal number of sensors is identified using multi-objective optimization that simultaneously considers information entropy and sensor cost-objective functions. Luling Bridge, a cable-stayed bridge over the Mississippi River, is selected as a case study to demonstrate the efficiency of the proposed approach.

• Journal of Korea Society of Digital Industry and Information Management
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• v.6 no.2
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• pp.29-38
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• 2010

It often occur to nature disaster that like earthquake, typhoon, etc. around KOREA. A Haiti and Chile also metropolitan area of KOREA occur earthquake. in result, People think of nature disaster. Structures of present age are easily affected by nature disaster. So we are important that warn of dangerous situation as soon as possible. On this study, I introduce Integrated monitoring system that administrator check a event as early. I develop Monitoring System using SMS(Short Message Service). Administrator always monitor structure on real-time using mobile web-page. As Administrator using mobile device like PDA, Administrator always monitor structure. As using this system, Damage of nature disaster is minimized and is prevented post damage.

• Proceedings of the KIEE Conference
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• 2003.07a
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• pp.169-171
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• 2003

Because the overhead transmission lines are exposed to the outdoor weather, the faults of the transmission tines are due to natural conditions, and among these faults, the outage rate by lightning is about 50%. The lightning causes the damage of power system equipments, the shut down of electricity and the electro-magnetic interference. Therefore, the pertinent insulation design is important, not only to decrease the damage of the facility itself but also to increase the reliability of electric power system. For these reasons, we have to obtain and accumulate the lightning current parameters for the basic lightning research. This paper describes the development of real time analysis system about lightning information.

• Proceedings of the KIEE Conference
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• 2003.07a
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• pp.175-177
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• 2003

Because the overhead transmission lines arc exposed to the outdoor weather, the faults of the transmission lines are due to natural conditions, and among these faults, the outage rate by lightning is about 50%. The lightning causes the damage of power system equipments, the shut down of electricity and the electro-magnetic interference. Therefore, the pertinent insulation design is important, not only to decrease the damage of the facility itself but also to increase the reliability of electric power system. For these reasons, we have to obtain and accumulate the lightning current parameters for the basic lightning research. This paper describes the development of real time analysis system about lightning information.

• Proceedings of the Korean Society of Computer Information Conference
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• 2014.07a
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• pp.145-146
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• 2014

본 논문에서는 스포츠 경기에서 일어날 수 있는 부상에 대해 올바른 지식과 대처방법을 잘 표현하는 앱을 만드는 것으로, 스포츠 팀에 필요한 팀 탁터 역할을 할 수 있는 앱을 설계한다. 일반적으로 팀 닥터는 일정 규모의 선수단이나 경기에서 상주하면서 선수들이 부상이 발생할 때마다 응급처치 및 병원에서 적절한 치료를 받도록 해준다. 그러나, 아마추어팀이나 학생들이 하는 소규모 그룹에서는 거의 코치나 학생들밖에 없는 경우가 다반사이다. 이럴 경우 팀닥터의 역할을 해주는 앱을 사용하므로써 의료기관을 방문하기 전까지 누구나 쉽게 의료정보를 얻고 응급처치를 할 수 있도록 해준다.

• Nuclear Engineering and Technology
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• v.36 no.6
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• pp.485-496
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• 2004

Typical probabilistic safety assessment (PSA) results were used to estimate the performance indicator (PI) thresholds of unplanned reactor scram (URS) and safety system unavailability (SSU) for Korean nuclear power plants (NPPs). The changes in core damage frequency (${\Delta}$CDFs) of $10^{-6}/yr$, $10^{-5}/yr$, and $10^{-4}/yr$ were adopted as the risk criteria in setting up the PI thresholds. The PI thresholds for the URS were estimated using information pertaining to the initiating event frequencies, the CDF, and the CDF contribution of each initiating event. The PI thresholds of the SSU were estimated using information on the unavailability, the Fussell-Vesely importance, and the CDF.

• 한국방재학회:학술대회논문집
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• 2008.02a
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• pp.641-644
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• 2008

Recently, a lot of life damage caused by disaster have happened in the underground space. Because the space is closed areas and used by the unspecific majority. Therefore there are many kinds of emergency equipments for diminishing the life damage in case of the disaster. In this paper, we propose the retrieval system for the administrator. Our system provides the function for searching the descriptive information and spatial information of the equipment management. And the administrator can manage underground disaster equipments effectively through the system.

• Proceedings of the Korean Society of Disaster Information Conference
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• 2017.11a
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• pp.291-292
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• 2017

본 논문에서는 연구실험실에서 이루어지는 연구 활동에 따라 다양한 유해요인이 존재하게 된다. 생물 관련 실험실에서 근무하는 연구 활동 종사자들은 바이러스, 박테리아와 같은 유해요인, 화학 관련 실험실에서 근무하는 연구 활동 종사자들은 다양한 화학물질에 노출되고 있고 이렇게 노출되는 유해요인에 따라 연구 활동 종사자들이 경험하는 건강요인도 다르다. 외국에서는 연구 활동 종사자들 대상으로 실험실 근무와 건강영향간의 상관관계를 조사한 연구가 있는 편이지만 우리나라에서는 이에 대한 연구가 많이 부족한 실정이다. 따라서 이 연구의 목적은 우리나라 일부 대학의 생물 및 화학실험실의 연구 활동 종사자를 대상으로 건강상의 영향을 조사하고 연구 활동 종사자의 건강에 영향을 끼치는 환경적 요인을 파악하는데 있다.

• Journal of the Society of Disaster Information
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• v.9 no.1
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• pp.97-104
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• 2013

Locally and abroad, people's anxiety is now at a high due to CBRNE accidents. The accidents occur by various causes, and the scale of disaster could be enlarged. In this study, we focused on CBRNE education training program as a way of reducting damage of CBRNE accidents which could harm unspecified individuals and drew a parallel by a comparative analysis about CBRNE educational programs of domestic institutions.