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한원석,이진각,이준석,한호규,윤창노 대한화학회 2012 Bulletin of the Korean Chemical Society Vol.33 No.5
Rice blast is the most serious disease of rice due to its harmfulness and its world wide distribution. Magnaporthe grisea is the cause of rice blast disease and destroys rice enough to feed several tens of millions of people each year. Fungicides are commonly used to control rice blast. But M. grisea acquires resistance to chemical treatments by genetic mutations. 2-Phenylimino-1,3-thiazolines were proposed as a novel class of fungicides against M. grisea in the previous study. To develop compounds with a higher biological activity, a new series of 2-phenylimino-1,3-thiazolines was synthesized and its fungicidal activity was determined against M. grisea. The QSAR analysis was carried out on a series of 2-phenylimino-1,3-thiazolines. The QSAR results showed the dependence of fungicidal activity on the structural and physicochemical features of 2-phenylimino- 1,3-thiazolines. Our results could be used as guidelines for the study of the mode of action and further design of optimal fungicides.
MOCVD를 이용해 성장한 n-ZnO/p-Si 이종접한 다이오드의 전기적 특성 평가
한원석,공보현,김동찬,조형규 한국표면공학회 2007 한국표면공학회 학술발표회 초록집 Vol.2007 No.-
저온 성장이 가능한 MOCVD를 이용하여 단결정 p-Si 기판위에 n-ZnO를 산소분압을 탈리하여 성장하였다. 산소유량에 따른 이종접합 다이오드의 전기적 특성을 평가하기위하여 n-ZnO의 전기전도도, 이동도, 캐리어 농도를 측정하였으며, 소자에 저항성 접촉(ohmic contact) 전극을 형성하여 전류-전압 특성을 파악하였다.
한원석,Young-Jin Yoon,Cheol-Woo Park,Sung-Hwan Park,Oun-Ouk Nam,Il Rhee 대한심장학회 2012 Korean Circulation Journal Vol.42 No.7
Pericardial abscess is an extremely rare complication of Staphylococcus aureus bacteremia. We report a case of a 72-year-old woman with multiple acupuncture scars on both knees who presented with shortness of breath and general weakness. Transthoracic echocar-diography and pericardiocentesis confirmed the presence of pericardial fluid collection. Staphylococcus aureus grew in both pericardial fluid and blood. Although an aggressive medical treatment including intravenous antibiotics and percutaneous drainage, the patient died 2 days after admission.