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김현중,김우환,이상철,임종호,조상희,김아현,Kim, Hyun-Joong,Kim, Woo-Hwan,Lee, Sang-Cheol,Im, Jong-Ho,Cho, Sang-Hee,Kim, Ah-Hyoun 한국통계학회 2008 Communications for statistical applications and me Vol.15 No.5
본 논문은 금융기관에서 활용하고 있는 운영리스크 측정모형에 대한 적합성검증 방법 중 안정성 검증에 관한 것이다. 신용리스크와는 달리 운영리스크는 손실자료의 특징, 과거 자료의 부족 그리고 적합성검증을 위한 이론적 도구의 부족 등으로 인해 현재 적절한 적합성검증 방안에 제시되지 못하고 있다. 본 논문에서는 운영리스크 VaR(Value at Risk) 추정값의 안정성을 평가하는 적합성검증 방법을 제시하고 이를 활용한 실증분석을 통해 제안된 방법에 대한 실제적 활용 가능성을 확인해 보고자 한다. 구체적으로 본 논문에서는 붓스트랩 방법을 활용하여 운영리스크 VaR의 신뢰구간을 생성함으로써 운영리스크 VaR 추정값의 안정성을 검증하는 기법을 제안하였으며, 이를 토대로 적합에 따른 운영리스크 VaR 추정값의 안정성을 측정하는 방안도 제시하였다. Operational risk is defined as the risk of loss resulting from inadequate or failed internal processes, people and systems, or external events. The advanced measurement approach proposed by Basel committee uses loss distribution approach(LDA) which quantifies operational loss based on bank's own historical data and measurement system. LDA involves two distribution fittings(frequency and severity) and then generates aggregate loss distribution by employing mathematical convolution. An objective validation for the operational risk measurement is essential because the operational risk measurement allows flexibility and subjective judgement to calculate regulatory capital. However, the methodology to verify the soundness of the operational risk measurement was not fully developed because the internal operational loss data had been extremely sparse and the modeling of extreme tail was very difficult. In this paper, we propose a methodology for the validation of operational risk measurement based on bootstrap confidence intervals of operational VaR(value at risk). We derived two methods to generate confidence intervals of operational VaR.
요통(腰痛) 환자에 대한 이침(耳鍼)의 침자수법(鍼刺手法)에 따른 치료효과(治療效果)의 임상적(臨床的) 고찰(考察)
김현중,김민수,이은용,박영재,Kim, Hyun-joong,Kim, Min-soo,Lee, Eun-yong,Park, Young-jae 대한침구의학회 2004 대한침구의학회지 Vol.21 No.1
Objective: The purpose of this study is to evaluate the effect of auricular acupuncture therapy by using different techniques combined with common acupuncture treatment on lumbago patients. Methods: 30 patients with lumbago who were hospitalized in Semyung Univ. Oriental Medical Hospital were devided into three groups. Group A of 10 patients were treated by common acupuncture treatment and auricular acupuncture therapy by methods of burying needles. Group B of 10 patients were treatedd by common acupuncture treatment and auricular acupuncture therapy by methods of pricking needles. Group C of 10 patients were treated only by common acupuncture treatment. The pain scale and improvement index of these three groups were evaluated after 10 days of admission. Results: 1. On the score of pain scale, group A and B were both superior to group C, but had no specific difference(p=0.15). 2. On the score of improvement index, group B was superior to group A, and group A was superior to group C(p=0.04). Conclusions: The combination of auricular acupuncture therapy and common acupuncture treatment was more effective than only to use common acupuncture treatment to lumbago patients. Especially, using the auricular acupuncture therapy by pricking methods, was the most effective methods in increasing improvement index.
김현중,양현호,Kim, Hyun-Joong,Yang, Hyun-Ho 한국정보통신학회 2011 한국정보통신학회논문지 Vol.15 No.7
유비쿼터스 컴퓨팅 기술의 발전과 함께 의료와 접목되어 시간과 공간에 구애받지 않고 언제 어디서나 건강관리를 받을 수 있는 새로운 형태의 의료서비스인 U-헬스케어가 많은 관심을 받고 있다. U-헬스케어를 실현하기 위해서는 일상생활 중 안정적인 생체정보 모니터링이 필수적이며 사용자를 구속하지 않으면서 생체정보를 간편히 측정할 수 있는 생체정보 측정 모듈이 연구되고 있으며 이를 통해 생체정보를 모니터링 하고자하는 시도들이 이루어지고 있다. 본 논문에서는 U-헬스케어를 위한 무선센서네트워크기반의 소형, 경량의 온도 센서노드를 제작하고 패치 형태로 신체에 부착하여 사용자의 활동에 불편함이 없이 실시간으로 체온을 측정하고 모니터링하여 이를 활용할 수 있는 방안을 제시하였다. With the advancement of ubiquitous computing technology, u-Healthcare (i.e. ubiquitous health care), is regarded as a key application for information society, which provides health management service at anytime in anywhere. To implement U-Healthcare system, it is essential to monitor stable biological information in daily life. In this paper, we proposed a small size, light weight, patch type real time temperature monitoring system based on wireless sensor network (WSN) technology to monitor patients' body temperature without any inconvenience of activity.
김현중,김민수,박영재,이은용,Kim, Hyun-joong,Kim, Min-soo,Park, Young-jae,Lee, Eun-yong 대한침구의학회 2004 대한침구의학회지 Vol.21 No.6
Objective : This study was performed to examine the Magnetic therapy decrease the allergic reaction of Bee Venom. Methods : We injected BV to sample group(n=10) and control group(n=10) at 2 points of body, and also sample group was treated with Magnetic therapy additionally. We observed the change of local pain, pruritus, color difference value at 1 hour, 24 hours after injection. Results : Local pain, pruritus and color difference value of sample group were more decreased than control group. Conclusions : The Magnetic therapy decreased allergic reaction of Bee Venom.