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규칙적인 태극권의 참여가 유방암 수술환자의 산화-항산화계에 미치는 영향
황인수(In Soo-Hwang),곽이섭(Yi-Sub Kwak) 한국생명과학회 2009 생명과학회지 Vol.19 No.4
Treatment for breast cancer produces side effects that diminish functional capacity and quality of life (QOL) among survivors. Tai Chi is a moderate form of exercise that may improve functional capacity, physical activity and oxidative stress. The purpose of this study was to evaluate the effects of regular Tai Chi exercise on malondialdehyde (MDA), SOD and physical fitness (muscle strength, flexibility, flexion, extension, adduction, and abduction). Forty obese women were recruited from a public health center and divided into control (CON: n=20) and trained (EXP: n=20) groups. The Tai Chi exercise group participated in a 12-week (4 times/week) training program. Data were analyzed with T-test. MDA, SOD and physical fitness (muscle strength, flexibility, flexion, extension, adduction, and abduction) were evaluated before and after the Tai Chi program in both groups. There were significant improvements in shoulder flexibility, flexion, extension, abduction, and adduction. However, there was no improvement in muscle strength. There were also significant improvements in MDA and SOD. Based on these results, Tai Chi exercise has been shown to stimulate endogenous antioxidant enzymes and reduce oxidative damage markers. and also be effective in improving physical fitness and QOL. Further study is needed in this area.
연관분석을 이용한 효과적인 표절검사 및 문서분류에 관한 연구
황인수 ( In Soo Hwang ) 한국정보시스템학회 2014 情報시스템硏究 Vol.23 No.3
Plagiarism occurs when the content is copied without permission or citation, and the problem of plagiarism has rapidly increased because of the digital era of resources available on the World Wide Web. An important task in plagiarism detection is measuring and determining similar text portions between a given pair of documents. One of the main difficulties of this task is that not all similar text fragments are examples of plagiarism, since thematic coincidences also tend to produce portions of similar text. In order to handle this problem, this paper proposed association analysis in data mining to detect plagiarism. This method is able to detect common actions performed by plagiarists such as word deletion, insertion and transposition, allowing to obtain plausible portions of plagiarized text. Experimental results employing an unsupervised document classification strategy showed that the proposed method outperformed traditionally used approaches.
황인수,Hwang, In-Soo 한국경영정보학회 2005 Asia Pacific Journal of Information Systems Vol.15 No.3
One of the most fundamental problems in business is to evaluate the value of each product. The difficulty is that the profit of one product not only comes from its own sales, but also its influence on the sales of other products, i.e., the "cross-selling effect". This study integrates a measure for cross selling and an algorithm for profit estimation. Sales transaction data and post sales survey data from on-line and off-line shopping mall is used to show the effectiveness of the method against other heuristic for profit estimation based on product-specific profitability. We show that with the use of the new method we are able to identify the cross-selling potential of each product and use the information for better product selection.
ACF 담지에 의한 기상 수은 흡착성 PTFE 멤브레인 필터의 제조
강인수(In-Soo Kang),신요섭(Yo-Seob Shin),권병찬(Byung Chan Kwon),박노국(No-Kuk Park),이태진(Tae Jin Lee),이승우(Seung Woo Lee),서명조(Myung Jo Seo),황상연(Sang Yeon Hwang) 한국에너지기후변화학회 2019 에너지기후변화학회지 Vol.14 No.1
In this study, the adsorbent was coated on the bag filter material to remove mercury in the flue gas of the incinerator. Activated carbon fiber (ACF) powder was used as an adsorbent. Dip coating, droplet coating, and spray coating method were tried to effectively coat ACF on the surface of polytetrafluorothylene (PTFE) non-woven fabric as a bag filter material. Among these coating methods, ACF powder was coated on the surface of PTFE non-woven fabric by dip coating to observe the adsorption behavior of mercury. It was confirmed that the coating of ACF added the mercury adsorption characteristic of the bag filter material. In addition, it was confirmed that when KI was supported on the ACF surface, the mercury adsorption performance was enhanced. This result is expected to be used as basic research data to develop a technique to simultaneously remove ultra-fine dust and small amount gas phase mercury in the flue gas in the dust collection process by filtration.