• The Transactions of The Korean Institute of Electrical Engineers
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• v.59 no.3
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• pp.531-535
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• 2010

345kV Incheon Thermal Power Plant Transmission Line Collapse Analysis and Countermeasures. The Typhoon Galmaegi which had been formed in July 15, 2008 diminished into a tropical cyclone and cooled the air above the West Sea. The cooled air colliding with the warm inland air caused a strong whirlwind at some places in the west seaside; the whirlwind battered the 345kV Incheon Thermal Power Plant Transmission Line to be collapsed. The resistance of transmission towers against wind pressure, one of the key elements in transmission line engineering, is designed to endure the pressure corresponding to the maximum instantaneous wind speed. Before the above accident happened, no transmission line has ever been collapsed by a whirlwind. So this paper is aimed to analyze causes that collapsed 345kV Incheon Thermal Power Plant transmission line and to introduce countermeasures.

• Proceedings of the Korea Institutes of Information Security and Cryptology Conference
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• 2006.06a
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• pp.356-360
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• 2006

Recently, many power analysis attacks have been proposed. Since the attacks are powerful, it is very important to implement cryptosystems securely against the attacks. We propose countermeasures against power analysis attacks for elliptic curve cryptosystems based on Koblitz curves (KCs), which are a special class of elliptic curves. That is, we make our countermeasures be secure against SPA, DPA, and new DPA attacks, specially RPA, ZPA, using a random point at each execution of elliptic curve scalar multiplication. And since our countermeasures are designed to use the Frobenius map of KC, those are very fast.

• Proceedings of the KIEE Conference
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• 2009.07a
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• pp.323_324
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• 2009

345kV Incheon Thermal Power Plant Transmission Line Collapse Analysis and Countermeasures. The Typhoon Galmaegi which had been formed in July 15, 2008 diminished into a tropical cyclone and cooled the air above the West Sea. The cooled air colliding with the warm inland air caused a strong whirlwind at some places in the west seaside; the whirlwind battered the 345kV Incheon Thermal Power Plant Transmission Line to be collapsed. The resistance against wind pressure, one of the key elements in transmission line engineering, is designed to endure the pressure corresponding to the maximum instantaneous wind speed. Before the above accident happened, no transmission line has ever been collapsed by a whirlwind. So this paper is aimed to analyze causes that collapsed 345kV Incheon Thermal Power Plant transmission line and to introduce countermeasures.

• Korean Management Science Review
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• v.17 no.1
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• pp.145-158
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• 2000

The medical records of diagnostic and testing information include sensitive personal information that reveals some of the most intimate aspects of an individual's life. The hospital information system (HIS) operates in a state of high risk which may lead to the possible loss to the IS resources caused by various threats. This research addresses twofold : (1) to perform asset identification ad valuation and (2) to recommend countermeasures for secure HIS network using case studies This paper applied a risk management tool CRAMM (Central Computer and Tele-communications Agency's Risk Analysis and Management Method) to assess asset values and suggest countermeasures for the security of computerized medical information of two large hospitals in Korea. CRAMM countermeasures are recommended at the reference sites from the network security requirements of system utilized for the diagnosis and treatment of patients. The results of the study will enhance the awareness of IS risk management by IS managers.

• Proceedings of KOSOMES biannual meeting
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• 2005.11a
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• pp.91-110
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• 2005

Maritime terrorism at sea is the form of violent interference with shipping. Its global reach and negative impact on sea transportation, safety of navigation and marine environment, as well as the threat it poses to human lives and property, call for effective countermeasures at the international and national level at the same time. First, this paper gives a factual assessment of the phenomenon of maritime terrorism as well as a legal analysis of the international provisions to suppress such forms of violence at sea which is different from piracy. And also this paper attempts to address and identify issues relevant to the existing international regulations such as SUA Convention as the main source of international regulations applicable to acts of terrorism at sea, ISPS Code, PSI, etc. Finally this paper suggests the national countermeasures against maritime terrorism in light of above mentioned the definition, causes, types of maritime terrorism and concerning international regulations.

• Proceedings of the KIEE Conference
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• 2006.11a
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• pp.30-32
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• 2006

New building, reinforcement, maintenance and test of power equipments are always necessary in a power system. Our power system is getting old and the total power capacity is also getting large, so power equipment outages are getting often. Power euipment outages make less margine for a stable condition of a power system operation. Therefore, through overviews and countermeasures against the outage should be made in order to be in a stable operational conditions during the outage. We have too many outages over 300 per month in our power system. So, we can't have enough time to study our power system and to make countermeasures without a helping program. This program is designed to give various and appropriate informations necessary for an outage scheduling. By applying this program, we can raise the job efficiency high and spare the time spent. So we can afford to do through system studies and make good countermeasures. I think this program can contribute greately to power system stable operation.

• Korean Journal of Agricultural Science
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• v.20 no.2
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• pp.201-210
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• 1993

The political and technological countermeasures to cope with the UR problems are under studying at present or some of them are already applied to increas farm household income. It is evident that the leisture farm development is considered the best alternative among the countermeasures. On account of mitigating labour shortage, a most difficult problem encountered by agriculture, and of promoting consumption of farm products, the leisure farm development could increase farm household incomes accoringly. This study is ultimately aimed at identifing the countermeasures to increase farm household incomes by suggestion of the improvement of leisure farm management thorough survey of the present leisure farm management status. The leisure farm. management survey was carried out based on the seven leisure farms such as Songnam, Cheongrock, Yusung, Duryong, Hwachun, Maesan and Sinhuck which are saperately located in Chungnam Province.

• Proceedings of the Korean Geotechical Society Conference
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• 2010.03a
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• pp.279-290
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• 2010

Technical countermeasures against debris flow should be established upon the risk level of the target location. Risk of debris flow should consider the hazard imposed by debris flow and vulnerability of the facilities to debris flow. In this research, we have defined the target location for risk evaluation and suggested scoring method of hazard of debris flow and vulnerability of road to debris flow. By defining risk rank into 6 categories in terms of possibility of damage during rainfall and using the risk scores of 46 debris flow cases, we have suggested risk ranking matrix. The method can be used in ranking the drainage basin adjacent to road by simply determining the hazard with vulnerability score and can be used for planning the debris flow countermeasures.

• Asia-Pacific Journal of Business
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• v.7 no.2
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• pp.49-59
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• 2016

The study attempts to investigate the causes of Sino-U.S. trade friction in recent years and provides countermeasures accordingly. The import and export volume of two countries, the product structure of China's export, the 337th Act lawsuits related to China, the industries involved in trade friction, and the G-L Index of Sino-U.S. Products are analyzed in detail. The causes of Sino-US trade frictions are discussed from the aspect of mercantilism and trade protectionism, interest groups and governments' trade policies, Chinese product structure, intellectual property protection in China, and performance of Chinese enterprises in litigation. Based on these, countermeasures are put forward. China needs to implement industrial upgrading, increasing the added value of products, and improving intellectual property protection. A trade friction warning system also needs to be constructed. The Chinese government needs to carry out strategic dialogue and international negotiation.

• Journal of the Korea Safety Management & Science
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• v.16 no.1
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• pp.29-35
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• 2014

The purpose of this study is to investigate the problem on safety and health training system in Occupational Safety and Health Act(OSHA) and to find countermeasures to improve it in the construction industry. The questionary survey was done on aiming at tracing the legal drawbacks of safety and health training system. The questionary was prepared to target on site workers, management supervisors, and safety supervisors in various construction sites. After analyzing the answers from the survey, realistic and optimal countermeasures on derived problems were proposed. These should be included on the next revision of OSHA.