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강승리,박원균,권보상,고재곤,구현우,박정준 대한흉부외과학회 2018 Journal of Chest Surgery (J Chest Surg) Vol.51 No.2
Coronary sinus ostial atresia (CSOA) with persistent left superior vena cava (LSVC) in the absence of an unroofed coronary sinus is a benign and rare anomaly that may be taken lightly in most instances. However, if overlooked in patients undergoing univentricular heart repair such as bidirectional Glenn or Fontan-type surgery, fatal surgical outcomes may occur due to coronary venous drainage failure. We report a case of CSOA with a persistent LSVC that was managed through coronary sinus rerouting during a total cavopulmonary connection, and provide a review of the literature regarding this rare anomaly.
한만형,정현석,권승리 한국공업화학회 2016 한국공업화학회 연구논문 초록집 Vol.2016 No.1
In perovskite solar cell, electron transport layer (ETL) which normally used mp-TiO<sub>2</sub> is essential to extract electrons and decrease the hysteresis in perovskite solar cell I-V curve. However, mp-TiO<sub>2</sub> is composed of organic binder which affect to interrupt the electrons transport. Therefore, for removing of organic binder, high temperature process (500°C) is necessary. In this reason, the fabrication of flexible perovskite solar cell is limited. In the present study, we tried to treat mp-TiO<sub>2</sub> layer by Reactive Ion Etching (RIE) process. We controlled plasma power of RIE, atmosphere of chamber(ratio of Ar and O<sub>2</sub>) and reaction time. We checked removal of organic binder with mp-TiO<sub>2</sub> by XPS and formation of good crystallinity of anatase TiO<sub>2</sub> phase by XRD and TEM. Finally we not only optimized the process of RIE instead of high temperature process but also fabricated good efficiency of perovskite solar cells.