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복분자(覆盆子), 석창포(石菖蒲), 상침자 및 숙지황(熟地黃)이 모발성장(毛髮成長)과 면포에 미치는 실험적(實驗的) 연구(硏究)
오영선,노석선,오민석,Oh, Young-Sun,Roh, Sek-Seun,Oh, Min-Suck 대한한방안이비인후피부과학회 2006 한방안이비인후피부과학회지 Vol.19 No.3
The effects of four extracts of medicinal herbs, Rubus coreanum, Acorus calamus, Morus alba and Rehmannia glutinosa on hair growth activity and acnes control were investigated. In the course of screening natural extracts for hair growth, we found that the extract of dried root of Rubus coreanum has the hair growth promoting effect. After topical application of these extracts to the back of C57BL/6 mice, the earlier conversion of telogen-to-anagen phase was induced. The growth of dermal papilla cells and mouse vibrissae hair follicle cultured in vitro, however, was not affected by treatment of these extracts. Furthermore these extracts do not possesspotent inhibitory effect on $5{\alpha}-reductase$ I and II activity and anti-bacterial effect on Escherichia coli , Propionibacterium acnes, Pityrosporum ovale, Staphylococcus aureus, Staphylococcus epidemidis, and Candida albicans. RT-PCR analysis showed that these extracts did notinduce mRNA levels of growth factors such as insulin-like growth factor-I, keratinocyte growth factor, hepatocyte growth factor and vascular endothelial growth factor in dermal papilla cells. These results suggest that Rubus coreanum has hair growth promoting effect. However, the effects of these materials on the hair growth promotion are not mediated through inhibition of $5{\alpha}-reductase$ I and II activity, stimulation of hair follicle cells and expression of growth factors in the dermal papilla cells.
가미계혈등탕(加味鷄血藤湯)이 고혈압(高血壓)에 미치는 영향(影響)
오영선,김윤식,설인찬,유병찬,Oh, Young-Seon,Kim, Yoon-Sik,Seol, In-Chan,Yu, Byeong-Chan 대한한방내과학회 2004 大韓韓方內科學會誌 Vol.25 No.4
Objectives : This study was done to investigate the effect of Gamigehyuldeung-tang on hypertension. Methods : After administering Gamigehyuldeung-tang extract to SHR(Spontaneous Hypertensive Rats) for 5 weeks, changes in blood pressure, pulse rate, aldosterone and catecholamine levels in plasma were examined, and immunohistochemical changes and scanning electron microscopic changes were observed. Results : The following results were obtained; blood presure decreased significantly as well as levels of aldosterone, dopamine and epinephrine in SHR. But levels of norepinephrine were unaffected. No capillary vessel dilation was observed. A decrease in cell damage was seen in microscope investigation. Conclusions : These results support a role for Gamigehyuldeung-tang might be usefully applied in treatment of hypertension.
On uniform asymptotic stability of the nonlinear differential system
오영선,안정향,Oh Young Sun,An Jeong Hyang Korea Society of Industrial Information Systems 2004 한국산업정보학회논문지 Vol.9 No.4
We investigate various $\phi(t)-stability$ of comparison differential equations and We obtain necessary and/or sufficient conditions for the asymptotic and uniform asymptotic stability of the differential equations x'=f( t, x)
퍼지이론과 임베디드장치를 이용한 실시간 고장예지 시스템 개발 -사출성형 중심으로-
오영선 ( Young Sun Oh ),신현재 ( Hyun Jae Shin ) 대한설비관리학회 2011 대한설비관리학회지 Vol.16 No.1
The objective of this study is to develop an efficient and practical real-time fault detection and prognostic system framework which is providing consistent useful information from sensed operating condition information. This system framework uses ideas combining expert knowledge that supplied by expert or experienced worker, resultant expert system database, real-time sensor information and fuzzy inference as the way to improve the performance of prognostic ability of proposed RFDPS system. The RFDPS model consists of four parts; embedded devide hardware part related to sensor, fuzzy inference/experts system part for describing uncertain status by fuzzying sensor signal, software part and database part for prognosis of quality condition monitoring on injection molding machines.
강의실 자동화를 위한 유비쿼터스 환경에서의 서비스 제어 구조
오영선(Oh Young-Seon),김병선(Kim Byoung-Sun),이현태(Lee Hyeun-Tae) 한국콘텐츠학회 2004 한국콘텐츠학회 종합학술대회 논문집 Vol.2 No.2
본 논문은 유비쿼터스 컴퓨팅 환경에서의 강의실 자동화를 살현하기 위한 서비스 제어 구조와 사용자 인터페이스를 설계한다. 서비스 제어를 위하여 UPnP 프로토콜을 기반으로한 서비스 제어구조를 제안하고 강의실에서의 서비스 시나리오를 설계하고 이를 위한 사용자 인터페이스를 설계하였다. 제안한 유비쿼터스 환경에서의 미래의 강의실 환경은 상황인지 컴퓨팅 능력을 이용하여 이용자에게 적응적인 사용자 인터페이스를 제어하고 사용자의 동작 이벤트를 인지하여 지능적인 강의 콘텐츠의 제작을 가능하게 함을 보여준다. In this paper, we propose a service control framework and user interface in a class automation of ubiquitous computing environment. We propose UPnP-based service control architecture and introduce an example service scenarios for automatic classroom. We present context-aware design approaches to argument user interface. We also present intelligent content authoring that facilitates producing e-learning content using activity context.
차별화 된 서비스를 제공하는 MPLS 기반의 VPN 구조 설계 및 구현
오홍석(OH Hong-Seok),오영선(OH Young-Seon),이현태(Lee Hyeun-Tae) 한국콘텐츠학회 2003 한국콘텐츠학회 종합학술대회 논문집 Vol.1 No.2
본 논문은 MPLS 기반의 VPN 서비스를 제공하고 각 VPN 사이트가 요구하는 QoS를 제공할 수 있는 에지 라우터를 설계하고 구현한다. 에지 라우터 설계를 위하여 라우팅과 시그널링 프로토콜을 기반으로 하는 제어 구조와 패킷 포워딩을 위한 데이터 구조를 설계하고 이를 이용하여 각각의 기능적 블록간의 인터페이스를 설계한다. 또한 에지 라우터의 설계를 기반으로 차별화 된 VPN 서비스를 제공하는 MPLS 기반의 VPN을 구현하고, 시뮬레이션을 통하여 설계된 에지 라우터 간 차별화 된 경로를 설정해 줌으로써 VPN 사이트 간에 요구되는 대역폭과 지연 등 트래픽 특성을 보장해 줄 수 있음을 확인한다. In paper, we present design and implementation of MPLS based VPN with QoS capabilities. We propose a design architecture of an edge router for MPLS based VPN with QoS capabilities in backbone network. We design functional blocks, interface specifications, detail routing and forwarding information based structure, and packet forwarding engine for the purpose of implementation of an edge router. We extend bgp-4 software for implementation differentiated service packet forwarding schemes in MPLS based VPN.