• 제어로봇시스템학회:학술대회논문집
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• 2005.06a
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• pp.1602-1605
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• 2005

An audit tracer is one of the last ways to defend an attack for network equipments. Firewall and IDS which block off an attack in advance are active way and audit tracing is passive way which analogizes a type and a situation of an attack from log after an attack. This paper explains importance of audit trace function in network equipment for security and defines events which we must leave by security audit log. We design and implement security audit system for secure router. This paper explains the reason why we separate general audit log and security audit log.

• Journal of Families and Better Life
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• v.13 no.2
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• pp.45-55
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• 1995

본 연구는 1992 Health and Retirement Survey(HRS' the Beta Release)를 사용하여 유산상속 결정에 미치는 영향요인을 분석하였다 조사를 위해 사용된 표본은 55세이상의 노 인 2,208명이었으며 표본 특성을 파악하기 위해 평균과 빈도를 분석하였고 유산상속 결정에 미치는 영향요인을 조사하기 위해 Probit 분석을 수행하였다 분석결과 주택지분액이 클수록 저축.CD.채권.주식보유액이 많은 노인일수록 유산상속을 할가능성이 높게나타났다 또한 교육수준이 높거나 백인 노인의 경우는 교육수준이 낮거나 백인이 아닌 경우보다 유산상속 을 할 가능성이 높았다 반면 건강상태가 나쁘거나 자녀수가 많은 노인은 유산상속을 할 가 능성이 낮게 나타났다.

• Proceedings of the Korea Environmental Mutagen Society Conference
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• 2004.11a
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• pp.157-157
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• 2004

• Journal of the Korean Data and Information Science Society
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• v.19 no.1
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• pp.25-36
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• 2008

Error Correcting Output Codes (ECOC) can improve generalization performance when applied to multicategory classification problem. In this study we propose a new criterion to select hyperparameters included in ECOC scheme. Instead of margins of a data we propose to use the probability of misclassification error since it makes the criterion simple. Using this we obtain an upper bound of leave-one-out error of OVA(one vs all) method. Our experiments from real and synthetic data indicate that the bound leads to good estimates of parameters.

• 전기의세계
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• v.45 no.4
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• pp.36-39
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• 1996

1949년 이후, 중국에서의 전력사업은 급속히 증가하였으며, 1949년부터 1994년까지의 에너지 생산의 연평균성장률과 기존에 장치용량은 각각 12.68%와 10.97%이다. 하지만 중국의 많은 인구와 발전중인 산업의 엄청난 수요로 인하여 전기에너지의 부족은 여전히 중국의 가장 심각한 문제이다. 그래서, 서부에서 동부로 전력에너지를 전송하기 위해서도 더욱더 고압의 AC와 DC 전송 system 채택이 적절하다. 최근까지는 많은 500kV AC 계통과 하나의 .+-.500kV DC link를 운영하였다. 다른 한편으로는, 설치된 전력기기의 안전운전을 어떻게 보장 할 것인가가 또 다른 중요한 문제이다. 그러므로, 절연진단이 온 나라이 전력설비에 더 많은 관심이 기울어지고 있다.

• Proceedings of the Korean Society of Marine Engineers Conference
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• 2011.06a
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• pp.285-285
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• 2011

This project can know realtime localization, sea weather and so on. also send information and message for work efficiency. in the case of an emergency like fall into the water or absent without leave, let the other sailer positions will allow for a quick response. so this system can be great help to emergency responders will be able to play a major role.

• Bulletin of the Korean Mathematical Society
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• v.38 no.1
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• pp.129-136
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• 2001

We consider a solution process of stochastic differential equation(SDE) driven by S'($R^d$)-valued Wiener process and study a large deviation type of estimates for the process. We get an upper bound in exit probability for such a process to leave a ball of radius $\tau$ before a finite time t. We apply the Ito formula to the SDE under the structure of nuclear space.

• Journal of the Korean Mathematical Society
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• v.37 no.3
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• pp.371-389
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• 2000

Working within classical distribution theory, we develop notions of multiplication and convolution for tempered distributions which are general enough to encompass the classical cases -such as pointwise multiplication of continuous functions or the convolution of $L^1$ functions- which most textbook treatments of distribution theory leave out. Pains are taken to develop a theory which satisfies the commutative and asociative laws.

• The Academic Congress of Korean Shoulder and Elbow Society
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• 2001.03a
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• pp.123-128
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• 2001

in young, active, strenuous patients $\blacksquare$ stabilization for unstable SLAP lesion $\blacksquare$ tenodesis for ruptured biceps tendon above the groove $\blacksquare$ repair for ruptured biceps tendon below the groove $\blacksquare$ relocation for biceps instability in old, inactive patients $\blacksquare$ no need stabilization for unstable SLAP lesion $\blacksquare$ debride/tenotomy for partial ruptured biceps tendon $\blacksquare$ leave alone/trimming of stump for complete ruptured biceps tendon $\blacksquare$ tenodesis/in-site fixation for biceps instability

• Journal of the Speleological Society of Korea
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• no.69
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• pp.1-7
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• 2005

The mountains and rivers in Guilin are famous for their beauty; the pines and rocks on Huangshan Mountains are well known for their magnificence. And now, another famous scenic zone that shall be one of the wonders of the world located in remote area of Northeast of China appears quietly, and it attracts lots of tourists and makes them reluctant to leave. That is Huanren, a Manchu county, which is famous as miraculous place.