• Proceedings of the KIEE Conference
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• 1998.07d
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• pp.1525-1527
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• 1998

The line-fuse which one of device most widely used in distributed line system has a ability to cut off the fault current flow into the house. But this device can be used only one time. So there are many waste of human power and money to exchange acted line-fuse. In this paper, we designed new type of line-fuse melting zone using by different union metal, so line-fuse can be reused after once operated.

• Research in Community and Public Health Nursing
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• v.17 no.2
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• pp.235-241
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• 2006

Purpose: This study was to review dysmenorrhea and its relief methods in nursing students by using base data for reducing dysmenorrhea. Method: The subjects were 92 students, data were collected by questionnaire surveys using convenience sampling and analyzed by the SPSS 12.0 program. Results: Medium amount of menstruation was most frequently answered and massage on painful sites was the most frequently used relief method(p<0.05). Frequency of medication was once a day during menstrual period, and methods that the most wanted to use when pain got severe was alternative methods(aroma, massage, and acupuncture)(p<0.05). Amount of menstruation showed a negative correlation with the duration(r=-0.32), dysmenorrhea was correlated with the severest days of dysmenorrhea(r=0.24) and the frequency of medication(r=-0.23). Conclusion: These results suggested that dysmenorrhea was correlated with the severest days of dysmenorrhea and the frequency of medication, but other variables showed no relations with menstrual characteristics.

• Korean Journal of Adult Nursing
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• v.18 no.4
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• pp.653-659
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• 2006

Purpose: The purpose of this study was to examine internet addiction, self-esteem and loneliness in adolescents. Method: Subjects were middle and high school students in Daegu (N=486). Self-rating questionnaire included demographic data, the Korean version of Young internet addiction scale, self-rating self-esteem and loneliness scale. We have received the consent from teachers and students. Results: Among the subjects, 34% was addicted and internet addiction was significantly different according to gender, record at school, economic status, attitude of mother, father, teacher and friend about internet. There were significant differences in self-esteem and loneliness according to internet addiction. Internet addiction, self-esteem and loneliness were related to each other. Conclusion: These results indicate that internet addiction would be changed according to gender, record at school, economic status, attitude of mother, father, teacher and friend about internet. Therefore, further studies are needed to generalize these results and examine widely the related variables of internet addiction.

• Journal of Information Processing Systems
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• v.12 no.3
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• pp.410-421
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• 2016

In this paper, we propose a framework that attempts to incorporate landmarks into a segment-based Mandarin speech recognition system. In this method, landmarks provide boundary information and phonetic class information, and the information is used to direct the decoding process. To prove the validity of this method, two kinds of landmarks that can be reliably detected are used to direct the decoding process of a segment model (SM) based Mandarin LVCSR (large vocabulary continuous speech recognition) system. The results of our experiment show that about 30% decoding time can be saved without an obvious decrease in recognition accuracy. Thus, the potential of our method is demonstrated.

• Journal of the Korean Data and Information Science Society
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• v.12 no.2
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• pp.125-143
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• 2001

We, in this paper, propose a kernel estimator of hazard ratio with censored survival data. The uniform consistency and asymptotic normality of the proposed estimator are proved by using counting process approach. In order to assess the performance of the proposed estimator, we compare the kernel estimator with Cox estimator and the generalized rank estimators of hazard ratio in terms of MSE by Monte Carlo simulation. Two examples are illustrated for our results.

• Proceedings of the KIEE Conference
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• 1997.07a
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• pp.118-120
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• 1997

A Lineal Stepping Motor (LSM) can operate in an open loop control mode similarly to a rotary stepping motor. However, the LSM has a large transient vibration, and it sometimes causes the miss-step. In this paper, a new vibration suppression method using an energy stored in winding inductance and induced voltage of the LPM is proposed.

• Annual Conference of KIPS
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• 2002.11b
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• pp.1177-1180
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• 2002

본 논문에서는 IETF CAT Working Group에서 발표한 PKINIT기반의 인증서비스를 향상시킨 Kerberos 인증 메커니즘을 제안한다. PKINIT기반의 X.509, DS/DNS를 적용하여 영역간의 서비스를 제공하는 인증과 키 교환방식으로 DNS를 통해 외부영역의 위치를 탐색하고 X.509 디렉토리 인증 시스템을 적용, 영역간 인증은 DNS 서버로부터 공개키를 획득하여 다른 영역을 인증하도록 하였다. 영역간 인증과 키 교환은 Kerberos의 관용키 암호방식을 사용하고 세션 연결은 X.509 공개키 방식에 기반을 두고 있다. 효율적인 TGT(티켓승인 티켓) 교환과 통신상의 Overload를 감소시키는 효과와 인증절차의 간소화를 가지는 Kerberos시스템을 설계하였다.

• Research in Community and Public Health Nursing
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• v.18 no.3
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• pp.452-459
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• 2007

Purpose: The purpose of this study was to examine stress and social support according to Internet addiction in juveniles. Method: Subjects were middle and high school students in Daegu (N=492). Data were collected using a self-rating questionnaire including demographic data, which was the Korean versions of an Internet addiction scale, a stress scale and a social support scale. Results: Stress and social support were significantly different according to Internet addition. Significant correlations were observed between Internet addiction and stress and between Internet addiction and social support. Conclusion: These results indicate that the more addictive to the Internet a student is, the more stress and the less social support he/she has. Therefore, further studies are needed to generalize these results and examine widely the effects of Internet addiction.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2013.11a
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• pp.16-17
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• 2013

최근의 방송은 고화질, 고품질, 실감화 등으로 방송통신융합과 신규 서비스가 나오게 됨으로서 멀티플랫폼으로 발전하고 있다. 뿐만 아니라 디지털 전환에 따른 방송장비의 진화로 장비수요가 증가하고 있는 추세이다. 국내는 주로 방송장비산업체가 중소기업 위주로 이루어져 있어, 정부차원의 적극적인 지원과 국내 외의 표준화를 통한 국산 방송장비의 원천 기술 확보 및 방송사업자의 적극적인 활용을 통한 검증으로 경쟁력 강화가 함께 이루어질 수 있도록 하여야 할 것이다. 또한 정부의 지원으로 기 개발된 장비는 개도국과 선진국으로 분류하여 차별화된 방송장비로 공략하고, 개도국에 중복된 지원을 단일 창구화하여 공략할 수 있도록 정부차원의 정책이 필요할 것으로 보인다.

• Proceedings of the KIEE Conference
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• 2007.04b
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• pp.31-34
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• 2007

회복전압 측정법(RVM: Recovery voltage measurement)은 최근 유럽지역에서 활발히 연구 진행되고 있는 절연 진단 기법 중의 하나로 소개된바 있으며, 오일과 절연지 사이에 스며든 수분량을 검출할 수 있는 진단 시스템기법이다. 변압기 내부의 절연물질에 대한 분극특성을 분석함으로서 열화진행정도 및 열화정도를 진단하는데 활용될 수 있다. 본 논문은 국산화의 일환으로 전기계측제어용 LabVIEW 프로그램을 활용하여 RVM 전 과정을 자동으로 사용할 수 있도록 자체 제작한 프로그램을 소개하고자 한다.