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3상 유도전동기 구동용 새로운 ZVT 인버터의 제어기법
송인석(In-Seog Song),이성룡(Seong-Ryong Lee) 전력전자학회 1998 전력전자학술대회 논문집 Vol.- No.-
In this paper, a control strategy of the three phase ZVT inverter for ac motor drives is proposed. The topology of ZVT inverter analyzed with a description of the control conditions dependent on the load current and MSVN(Modified Space Vector Modulation). The detailed simulation results indicate that zero-voltage operation during transition of the MSVM algorithm can be achieved.<br/>
조주영(Joo Young Cho),박장필(Jang Pil Park),정준(Jun Jeong),변흥열(Heung Yeal Byun),이승은(Seung Eun Lee),전영수(Young Soo Chun),송인석(In Seog Song) 대한소화기학회 1993 대한소화기학회지 Vol.25 No.6
N/A Boerhaave's Syndrome, or spontaneous esophageal rupture, is generally used to designate lesions resulting from intrinsic forces acting upon the esophagus as opposed to trauma. This disease is a rare. condition with high morbidity and mortality. A 47-year-old man was admitted to our hospital due to hematemesis for 1 hour and epigastric pain Esophagoscopic finding shows a well marginated oval shape puched lesion with necrotic tissue on left side of distal esophagus. Esophagograrn shows large, well marginated diverticuloid esophageal rupture. Correction of the perforated esophagus was carried out with primary repair and drainage. We experienced a case of diverticuloid esophageal rupture in a patient with liver dysfunction and hyperglycemia so report it with review of literatures.