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郭義鍾,鄭成鍾 全北大學校 1994 論文集 Vol.37 No.-
Since 1970, there have been several researches of drawing recognition system. But most of the syste as use database to recognize drawing and ones need management of the database. And in the conventional segmentation method, the more complex symbols are contatined in the drawing, the more symbols are added to recognize them in database. In this thesis, I proposed a segmentation method to separate compound symbol into basic symbols. And segmented symbols can be recognized using database of minimum. Experimental results show that input drawing can be separated into line components and loop components using proposed algorithm and compound symbols are separated intos basic symbols.
郭義鍾,尹厚炳,鄭成鍾 全北大學校 1994 論文集 Vol.37 No.-
As the diverse of industry increase information to handle, requirement of automatic input system has been increased. And these automatic input systems have been developed as the font of various kinds of recognition system. Expecially. drawing recognition system which is an automatic input system of drawing has been studied since 1970. But most of those systems are on-line system. On-line system can not continously display a status of making drawing by restriction of size of monitor, And can not input a printed data or hand drawn data with keyboard. In this paper, an off-line system to beautify the input data coming through scanner is proposed, and input data is a hand drawn data or printed data consisting of texts and graphics. To do this process, input data will be separated into line component, loop component, text. As shown in results, hand drawns or printed datas are separated into charater, line, and loop component. And also these separated component are beautified through symbol recognition.
Effect of Ginkgetin from Ginkgo biloba Leaves on Cyclooxygenases and In Vivo Skin Inflammation
Kwak, Wie-Jong,Han, Chang Kyun,Son, Kun Ho,Chang, Hyeun Wook,Kang, Sam Sik,Park, Byung Kyu,Kim, Hyun Pyo 영남대학교 약품개발연구소 2002 영남대학교 약품개발연구소 연구업적집 Vol.11 No.-
Ginkgetin, a biflavone from Ginkgo biloba leaves, was previously reported to be a phospholipase A_2 inhibitor and this compound showed the potent antiarthritic activity in art adjuvant-induced arthritis as well as analgesic activity. This investigation was carried out to find effects on cyclooxygenase (COX)-1 and -2 including an in vivo effect. Ginkgetin (1 - 10 ??M) and the biflavonoid mixture(10-50 ㎍/ml), mainly a 1:1 mixture of ginketin and isoginkgetin, from G. blloba leaves, inhibited production of prostaglandin E_2 from lipopolysaccharide-induced RAW 264.7 cetls. This inhibition was mediated, at least in part, by down-regulation of COX-2 expression, but not by direct inhibition of COX-1 or COX-2 activity. Down-regulation of COX-2 by ginkgetin was also proved in the dorsal skin of ICR mouse treated by 12-0-tetradecanoylphorbol 13-acetate (TPA). At total doses of 1,000㎍/site on the dorsal skin (15mm × 15 mm), ginkgetin inhibited prostaglandin E_2 production by 65.6% along with a marked suppression of COX-2 induction. in addition, ginkgetin and the biflavonoid mixture(100-1,000 ㎍/ear)dose-dependently inhibited skin inflammation of croton oil induced ear edema in mice by topical application. The present study suggests that ginkgetion from G.blloba leaves down-regulates COX-2 induction in vlvo and this down-regulating potential is associated with an anti-inflammatory activity against skin inflammatory responses.
박지은,정연재,박준범,김혜영,유영현,이광식,양원태,김도훈,김종민 한국발생생물학회 2019 발생과 생식 Vol.23 No.3
Type 2 diabetes mellitus (T2DM) is characterized by insulin resistance (IR). T2DM is correlated with obesity and most T2DM medications have been developed for enhancing insulin sensitivity. Silk protein fibroin (SPF) from spiders has been suggested as an attractive biomaterial for medical purposes. We generated transgenic rice (TR) expressing SPF and fed it to diabetic BKS.Cg-m+/+Leprdb mice to monitor the changes in blood glucose levels and adipose tissue proteins associated with energy metabolism and insulin signaling. In the present study, the adipocyte size in abdominal fat in TR-SPF-fed mice was remarkably smaller than that of the control. Whereas the adenosine monophosphate-activated protein kinase (AMPK)-activated protein kinase and insulin receptor substrate 1 (IRS1) protein levels were increased in abdominal adipose tissues after TR-SPF feeding, levels of six-transmembrane protein of prostate 2 (STAMP2) proteins decreased. Phosphorylation of AMPK at threonine 172 and IRS1 at serine 307 and tyrosine 632 were both increased in adipose tissues from TR-SPFfed mice. Increased expression and phosphorylation of IRS1 at both serine 307 and tyrosine 632 in adipose tissues indicated that adipocytes obtained from abdominal fat in TR-SPF-fed mice were more susceptible to insulin signaling than that of the control. STAMP2 protein levels decreased in adipose tissues from TR-SPF-fed mice, indicating that STAMP2 proteins were reducing adipocytes that were undergoing lipolysis. Taken together, this study showed that TR-SPF was effective in reducing blood glucose levels in diabetic mice and that concurrent lipolysis in abdominal adipocytes was associated with alterations of AMPK, IRS1, and STAMP2. Increased IRS1 expression and its phosphorylation by TR-SFP were considered to be particularly important in the induction of lipolysis in adipocytes, as well as in reducing blood glucose levels in this animal model.
그리드 사용자에 대한 정책기반 접근 제어 시스템 설계 및 구현
김경수(Kyong Su Kim),김법균(Beob Kyun Kim),황호전(Ho Jeon Hwang),곽의종(Eu Jong Kwak),두길수(Gil Soo Doo),안동언(Dong Un ANN),정성종(Sung Jong Chung) 한국정보과학회 2003 한국정보과학회 학술발표논문집 Vol.30 No.1A
차세대 통신에서는 컴퓨터자원들이 지속적으로 대용량화 · 고속화되는 추세이며 특히 생명공학, 유전공학, 유체역학, 기상기후 예측 등 여러 과학 분야에서 단일자원으로는 제공하기 힘든 계산 및 저장자원을 요구 하고 있다. 이러한 문제를 해결하기 위해서 지리적으로 분산 되어있는 자원들을 연결하여 마치 단일차원을 사용하는 것처럼 해주는 서비스인 그리드가 대두 되었다. 그러나 그리드 사용자가 작업을 수행시키기 위해서는 자신의 DN(Distinguished Name)을 Remote Machine상에 Local User Account를 바인딩 시켜줘야 한다. 따라서 각 사이트 관리자는 그리드 서비스를 제공하기 위해 수많은 그리드 사용자의 DN과 Local User Account를 바인딩 처리를 해 주어야 한다. 그러나 사실상 현실적으로 불가능하다. 이러한 문제를 해결하기 위해서 본 논문에서는 그리드 사용자에 대한 정책기반 접근 제어 시스템을 설계 및 구현했다.