• Environmental engineer
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• v.22 s.230
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• pp.63-63
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• 2005

• Journal of the Korean Professional Engineers Association
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• v.32 no.5
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• pp.14-19
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• 1999

• Proceedings of the Korean Professional Engineer Association Conference
• /
• 1996.12a
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• pp.109-116
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• 1996

• NEWSLETTER 전기공업
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• no.92-7 s.50
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• pp.1-15
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• 1992

• Journal of the Korea Institute of Information and Communication Engineering
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• v.18 no.1
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• pp.91-96
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• 2014

According to the spread of computers and the development of the information society, people are focused on privacy information. As the development of its associated policy and technology, it has been tried various attempts to protect their personal information. In this paper, we proposed anti-screen capture modules to protect personal information or a company's confidential information for agencies and departments that keeps top security. As a result, we can prevent an illegal use or a stealing of another person's information in a public agency or personal computer. Also modules can stop exposures of top security data and personal information during they communicate with others in their institution's sever system.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2012.10a
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• pp.787-790
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• 2012

Recently due to the development of the information society and the spread of computer, interest for personal information is increased and as policy and technology associated with the development, we have been various attempts to protect your personal information. In this paper, for agencies and departments to computer use and to deal with Important data of individuals, personal information or the company's confidential information, we proposed modules to protect them. As a result, we prevent a public agency or private institutions within that using mean bad or stealing another person's information. When we communicate various information with the systems in the institutions, the module can be prevented critical data and personal information exposure.

• Proceedings of the Korean Professional Engineer Association Conference
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• 1995.10a
• /
• pp.135-143
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• 1995

As a result of impressive economic growth for e past 3 decades Korean rural community saw improvement in road, houses etc. whereas movement of rural population to great urban centers, water pollutions, generation of wastes and damage to rural environment and landscapes emerged as a serious issue. In this treatise the writer reviewed the process of development of rural community under the government initiative and introduced the project for arrangement and restucturing of rural environment and discussed on the directions and requirements for future development.

• Aerospace Engineering and Technology
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• v.12 no.2
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• pp.230-240
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• 2013

Human powered aircraft: the aim is to fly only by human power, features many challenging issues. Contrary to the general aircraft operated by an engine, human powered aircraft, that manoeuvres by lower power, requires additional consideration about weight, material, aerodynamical and structural analysis. Since this aircraft flies at a low speed, low Reynolds number flight will need to be taken into account. In this paper, SNU (Seoul National University) Human Powered Aircraft was designed by comparing it with the existing human power aircrafts, as well as by using theoretical analysis that obtains the design parameters. Also, this paper discuss about the manufacturing process using composite material for real human powered aircraft.

• The Journal of Engineering Geology
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• v.28 no.4
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• pp.553-563
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• 2018

The recent increase of ground subsidence in Korea requires the development of technology for predicting the possibility of ground subsidence. Eighteen parameters affecting the ground subsidence for pre-excavation are classified into 6 categories considering ground types, groundwater, and external factors. Eighteen parameters consists of a table which gives ground subsidence risk ratings for pre-excavation(GSRp). Certain scores are given to these parameters after they are divided into several classes considering the importance and the credibility of parameters and the engineering judgements of the authors. Because of the difference of ground subsidence factors depending on the ground and field conditions, weighting factors for the individual factor and for the each category are multiplied. Weighting factors are calculated from citation frequencies of influencing factors. Ground subsidence risk ratings for pre-excavation can be quantified by considering the individual score of each parameter and weighting factors for the individual factor and for the each category. The suggested GSRp tables obtained from this study are expected to be used by engineers for the estimation of ground subsidence risk ratings for pre-excavation sites.