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WhoAmI: 와이파이와 와이파이 다이렉트 환경에서의 개인정보 공유 어플리케이션
곽준석,박종문,이명준,Kwak, Jun-Seok,Park, Jongmoon,Lee, Myung-Joon 한국정보통신학회 2014 한국정보통신학회논문지 Vol.18 No.2
사람들이 보다 다양한 사회 활동에 참여함에 따라 적절한 수준에서 개인 정보를 서로가 공유하는 작업이 더욱 빈번해지고 중요해지고 있다. 스마트폰의 급속한 보급과 네트워크 기술의 발전을 통하여 정보공유를 위한 다양한 어플리케이션이 등장했음에도 불구하고, 이들 어플리케이션은 인접한 주위 사람들의 개인정보를 공유하기 위한 효과적인 메커니즘을 제공하지 못하고 있다. 본 논문에서는 와이파이와 와이파이 다이렉트 환경에서 주위 사용자들의 개인정보를 공유하는 안드로이드 어플리케이션 WhoAmI를 소개한다. WhoAmI는 명함, 동호회, 친구로 미리 정의된 액세스 수준에 따라, 접근 가능한 주위 사람들에게 개인의 프로파일 정보를 자연스럽게 제공한다. 이와 더불어 음악, 사진, 동영상 같은 정보들 또한 개발된 어플리케이션을 통하여 효과적으로 공유될 수 있다. As people are taking part in more versatile social activities, it becomes more frequent and more important for people to share personal information each other in appropriate level. Unfortunately, although the rapid spread of smart devices and advance of network technologies have brought many applications for information sharing into our hands, they do not provide effective mechanism for sharing personal information on collocated people. In this paper, we introduce an android application named WhoAmI which provides the functionality of sharing personal information on nearby users over Wi-Fi Direct as well as Wi-Fi network environment. According to the predefined access level such as business, community or friend, WhoAmI naturally provides profile information to accessible users. In addition, the information such as music, photo, movie can be effectively shared through the application.
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ALT (Alanine Aminotransferase) 검사성적과 E형 간염항체 양성률간의 관련성
곽준석,옥치상 환경독성보건학회 1998 환경독성보건학회지 Vol.13 No.3
In order to elucidate the prevalence of anti-HEV, anti-HCV and HBsAg in ALT (Alanine Aminotransferase)-elevated patient group and healthy person control group, we examined anti-HEV, anti-HCV and HBsAg in 92 persons, respectively. The prevalence of anti-HEV in ALT-elevated patient group (4.3%) was not significantly higher than that (2.2%) of healthy person control group(P>0.05). While in healthy person control group the prevalence of anti-HEV in female (2.4%) was higher than that (2.0%) in male, and in ALT-elevated group male (4.8%) was higher than female (3.3%), there were no significances. The positive rate of anti-HEV was not significantly increased with age between healthy person control and ALT-elevated patient group. The odds ratio's of HEV, HCV and HBV with ALT-elevated patient group were 2.05 (95% CI: 0.31-16.54), 8.67 (95% CI: 1.06-188.63) and 7.23 (95% CI: 2.47-22.71), respectively, but had no significance. It was turned out that HCV and HBV were significantly correlated with ALT-elevated patient group, but HEV had no significance with it in this paper.
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ALT (Alanine Aminotransferase) 검사성적과 E형 간염항체 양성률간의 관련성
곽준석,옥치상 한국환경독성학회 1998 환경독성보건학회지 Vol.13 No.2
In order to elucidate the prevalence of anti-HEV, anti-HCV and HBsAg in ALT (Alanine Aminotransferase)-elevated patient group and healthy person control group, we examined anti-HEV, anti-HCV and HBsAg in 92 persons, respectively. The prevalence of anti-HEV in ALT-elevated patient group (4.31%) was not significantly higher than that (2.2%) of healthy person control group (P>0.05). While in healthy person control group the prevalence of anti-HEV in female (2.49%) was higher than that (2.0%) in male, and in ALT-elevated group male (4.81%) was higher than female (3.3%), there were no significances. The positive rate of anti-HEV was not significantly increased with age between healthy person control and ALT-elevated patient group. The odds ratio's of HEV, HCV and HBV with ALT-elevated patient group were 2.05 (95% CI : 0.31~16.54), 8.67 (95% Cl : 1.06~188.63) and 7.23 (959% CI : 2.47~-22.71), respectively, but had no significance. It was turned out that HCV and HBV were significantly correlated with ALT-elevated patient group, but HEV had no significance with it in this paper.
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Laser ablation 방법으로 증착한 BST 유전체 박막의 마이크로 웨이브 특성
곽준석,김채옥,홍진표 漢陽大學校 自然科學硏究所 2000 自然科學論文集 Vol.19 No.-
Microwave properties of ferroelectric Ba0.5Sr0.5TiO₃(BST) thin films were investigated utilizing a gold resonator combined with a planar flip-chip structure. The dielectric properties, capacitance (C) and dielectric loss (tan δ) of the BST film are characterized under the influence of an applied dc voltage, Vb, at room temperature. The BST ferroelectric capacitor with a capacitance of about 0.6 pF successfully control the tunability of the resonance frequency in the resonator with a factor of ~ 2. In addition, dependence of the loss tangent and the capacitance on the electrode was performed for the BST/LaAlO₃structure. Low loss tangent of about 3X10-3 was obtained at about 2GHz and 80 V bias voltage.
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