http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
金熙南,申仁鉉,鄭煥基 조선대학교 기초과학연구소 1988 自然科學硏究 Vol.11 No.1
The studied area is located in the part of Youngkwang, Chollanamdo, Which is in the Southwestern part of the Ogcheon Geocynclinal zone. The geology consists of the Cretaceous volcanic rocks lie in unconformity, on which the Jurassic granitoids intruded themselves into age-unknown the schist in Ogcheon system. The granitoids consists of Hornblende biotite granite, Biotite granite, Porphyritic biotite granite, Two mica granite and fine grained muscovite granite. The methods of study are as follows:80 rock samples were picked up around the out-crops, and classified according to the distributed areas and there kinds. 32 thin section out of 80 samples were a modal analysis. And 5 out of the samples were chemical analysis. As a result of the modal analysis, the granitoids in the studied area are plotted by granite and quartz monzodiorite and have the similarity of the C-zone older group in Ogcheon system. From the result of the chemical analysis, the Jurassic granitoids are similarity C-zone older group in the Ogcheon system but are poor CaO and MgO. These granitoids belong to the alkali-calcic rock series in the a1kali-lime index composed by Peacock. By the I-S type classification by white and Chappell (1977) and Hine (1978), these granitoids originated from magmas. Measuring the magnetic susceptibilities through 44 rock samples resulted in predominated magnetite series. The proportion of the alk: fm of the Niggli mean value is 13:19, and these granitoids were possible generated from before the C-zone older group in Ogcheon system.
정대헌(Jeong Daeheon),정환기(Jeong Hwangi),Florian Reuting 한국HCI학회 2022 한국HCI학회 학술대회 Vol.2022 No.2
기존 저시력자의 웹 접근성 보조 기술의 문제점을 제시하고 간편한 보조 기술의 필요성을 주장한다. 대안적 기술로서 경계 검출을 바탕으로 청각 지도를 생성하는 기술인 Sonar 를 제안한다. 이어 저시력 시뮬레이터를 이용해 사용성 테스트를 진행한다.
새로운 계열의 선택적 COX-2 저해제: Luotonin A 동족체 및 그 질소 유도체
김동현,량경록,오준석,장영동,김진철,홍태균,황남경,정환기,김윤경,장현욱,Kim, Dong-Hyeon,Liang, Jing-Liu,Oh, Joon-Seok,Jahng, Yurng-Dong,Kim, Jin-Cheul,Hong, Tae-Gyun,Hwang, Nam-Kyung,Chung, Hwan-Ki,Kim, Yun-Kyung,Chang, Hyeun-Wook 대한약학회 2007 약학회지 Vol.51 No.5
A series of luotonin A homologues and their aza-analogues were prepared and evaluated their inhibitory activities on COX-1 and 2 as well as their selectivities on COX-2. The aza-analogue of dimethylene-bridged homologue of luotonin A, 3,3'-dimethylene-2-(1',8'-naphthyrid-2'-yl)-4(3H)-quinazolinone (2b), exhibited strongest inhibitory activity against COX-1 and COX-2 dependent phase of prostaglandin $D_2$ generation in mouse bone marrow-derived mast cells in a concentration-dependent manner with an $IC_{50}$ of 39.3 and $1.89{\mu}M$, respectively. Selectivity of 2b on COX-2 over COX-1 was 21 which implied 2b can be a potential lead for the development of selective COX-2 inhibitor.
가죽나무 에타놀 추출물 및 luteolin-7-O-glucoside의phospholipase A2 저해활성
장현욱,김미화,황남경,홍태균,김윤경,정환기,양주혜,전철구,배기환,Pham Ngoc Thanh,손건호,김현표,강삼식 한국생약학회 2007 생약학회지 Vol.38 No.3
our continuing effort to investigate compounds having anti-inflammatory activity from natural products, Ail-anthus altissima was examined. Among six compounds isolated from Ailanthus altissima, Luteolin-7-O-glucoside (L7G) alongwith ethanol extract of Ailnathus altissima (EAa) were chosen to determine their inhibitory activity on secretory recombinantphospholipase A2s enzyme activity in vitro 2-V (IC50 of about 100g/ml) and cPLA2, (IC50 of about 59g/ml), while L7G showed strong inhibitory effect on sPLA2-A, V and cPLA2 with an IC50value of approximately 40M, respectively.Key wordsAilanthus altissima, Luteolin-7-O-glucoside, Phospholipase A2, inflamation... ... .... phospholipase A2(PLA2). ..... ...... arachidonic acid(AA) . lysophos-pholipid. .... . PLA2. .. ... AA. cyclooxy-genase(COX). lipoxygenase(LOX). .. ... ....... prostaglandins(PGs), thromboxanes(TXs) .leukotrienes(LTs). .. .... . .. ... lysophos-pholipid. .. .... .... ..... ... ...... .... platelet activating factor(PAF, ........ ). ..... PLA2. ... ...... .