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플라즈마분자선에피탁시법으로 성장한 산화비스무스아연 박막의 구조특성
임동석,신은정,임세환,한석규,이효성,홍순구,정명호,이정용,조형균,Lim, Dong-Seok,Shin, Eun-Jung,Lim, Se-Hwan,Han, Seok-Kyu,Lee, Hyo-Sung,Hong, Soon-Ku,Joeng, Myoung-Ho,Lee, Jeong-Yong,Cho, Hyung-Koun,Yao, Takafumi 한국재료학회 2011 한국재료학회지 Vol.21 No.10
We report the structural characterization of $Bi_xZn_{1-x}O$ thin films grown on c-plane sapphire substrates by plasma-assisted molecular beam epitaxy. By increasing the Bi flux during the growth process, $Bi_xZn_{1-x}O$ thin films with various Bi contents (x = 0~13.17 atomic %) were prepared. X-ray diffraction (XRD) measurements revealed the formation of Bi-oxide phase in (Bi)ZnO after increasing the Bi content. However, it was impossible to determine whether the formed Bi-oxide phase was the monoclinic structure ${\alpha}-Bi_2O_3$ or the tetragonal structure ${\beta}-Bi_2O_3$ by means of XRD ${\theta}-2{\theta}$ measurements, as the observed diffraction peaks of the $2{\theta}$ value at ~28 were very close to reflection of the (012) plane for the monoclinic structure ${\alpha}-Bi_2O_3$ at 28.064 and the reflection of the (201) plane for the tetragonal structure ${\beta}-Bi_2O_3$ at 27.946. By means of transmission electron microscopy (TEM) using a diffraction pattern analysis and a high-resolution lattice image, it was finally determined as the monoclinic structure ${\alpha}-Bi_2O_3$ phase. To investigate the distribution of the Bi and Bi-oxide phases in BiZnO films, elemental mapping using energy dispersive spectroscopy equipped with TEM was performed. Considering both the XRD and the elemental mapping results, it was concluded that hexagonal-structure wurtzite $Bi_xZn_{1-x}O$ thin films were grown at a low Bi content (x = ~2.37 atomic %) without the formation of ${\alpha}-Bi_2O_3$. However, the increased Bi content (x = 4.63~13.17 atomic %) resulted in the formation of the ${\alpha}-Bi_2O_3$ phase in the wurtzite (Bi)ZnO matrix.
가감석홍전(加減惜紅煎)으로 호전된 궤양성대장염(潰瘍性大腸炎) 환자(患者) 치험(治驗) 1례(例)
임동석,김남욱,이형호,이영수,홍석,김희철,최창원,Lim, Dong-Seok,Kim, Nam-Uk,Lee, Hyung-Ho,Lee, Yeong-Su,Hong, Seok,Kim, Hee-Chul,Choi, Chang-Won 대한한의학방제학회 2007 大韓韓醫學方劑學會誌 Vol.15 No.1
Objective : this study is designed to evaluate the effects of an oriental medicine therapy, namely gagam-sukhongjeon, on ulcerative colitis Methods : The Clinical data was analyzed on a patient with ulcerative colitis due to hanyeolchakjab(寒熱錯雜), whose symptoms were combined chillness and fever. The patient visited at the internal medicine department of Dong-Shin University Suncheon Oriental Hospital on February 25, 2006, and go into hospital from February 25, 2006 to March 9, 2006. and revisited from March 18, 2006 to April 5, 2006. The patient was treated with Herbal medicine(gagam-sukhongjeon) Result : After treatment, bloody stool and abdominal pain disappeared in visual analogue scale(VAS), pain disability index(PDI) and verbal rating scale(VRS). Conclusions : This study suggests that gagam-Sukhongjeon is significantly effective in treatment of ulcerative colitis.
진인화철탕가와송(眞人化鐵湯加瓦松)이 N-Nitrosodiethylamine으로 유발된 흰쥐의 간암에 미치는 영향
임동석,최창원,Lim, Dong-Seok,Choi, Chang-Won 대한한방내과학회 2008 大韓韓方內科學會誌 Vol.29 No.3
Objective : The purpose of our study was to investigate the effect of JinlnWhaChul-tang-ga-wasong (JIN) on NDEA-induced liver tumorigenesis. Materials and Methods : We investigated the possible protective effects of Jininwhachul-tang-ga-wasong (JIN) as an anticancer against NDEA-induced liver injury in mice. Experimental mice were classified into 3 groups; normal, saline administered group (control group), and JIN extract (0.15g/kg/every other day) administered group (JIN group) after being injected with NDEA over 12 weeks. We examined the state of differentiation of these tumors and the effects of JIN after 6 weeks. To confirm the induction of apoptosis, the cells were analyzed by terminal deorynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL) assay, acridine orange staining and flow cytometric analysis. To investigate inhibitory effect on the expression of COX-2 by JIN, we performed COX-2 immunohistochemistry and reverse transcription polymerase chain reaction analysis. Results : Body weights significantly decreased in the control and JIN groups compared with the normal group. The levels of cholesterol, hemoglobin and testosterone decreased in the control compared with the normal group. The level of estradiol significantly increased in the control compared with the normal group. The control group reacted with TUNEL assay more than the normal and JIN groups. Upon naked eye, light and electron microscopic examination, JIN improved the morphological and histopathological changes of the liver caused by NDEA-induced hepatic neoplasm. COX-2 immunoreactivity decreased in the JIN group compared with the control group, mRNA expression of the control group was greater than the normal and JIN groups. Conclusion : these results suggest the possibility that JIN may exert an anti-tumor effect on NDEA-induced liver tumorigenesis.
S-2-1 : 토탈솔루션 형태의 지능형 상수도 통합관리 시스템 설계/시공/운영-대도시 상수도 시스템 통합운영
임동석 ( Dong Seok Lim ),박정수 ( Jung Su Park ),이태국 ( Tae Kuk Lee ),장윤성 ( Yoon Sung Jang ),최정훈 ( Jung Hoon Choi ),이병기 ( Byeong Gi Lee ),신동환 ( Dong Hwan Shin ),김영진 ( Young Jin Kim ),이일재 ( Il Jae Lee ),박승국 ( 한국물환경학회(구 한국수질보전학회) 2013 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2013 No.-