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박광훈(Park K.H),이건우(Lee K.W),조형희(Cho H.H),함희철(Ham H.C),배주찬(Bae J.CH),Oh M.K 한국유체기계학회 2006 유체기계 연구개발 발표회 논문집 Vol.- No.-
The slot film cooling technique has been used to protect a chamber wall from hot combustion gas. This method has been applicable toramjet combustor and gas turbine. Especially, the multi-slot film cooling method is mainly applicable in the ramjet operating undersupersonic condition. This experimental study has been conducted to investigate effects of a recirculation zone and a lip thickness to slot height ratio on a multi-slot film cooling in the ramjet combustor. A pre-diffuser typed ramjet combustor having a recirculation zone due to the expansion step has been used for this study.
국군 수도병원의 심혈관계 수술 304예에 대한 임상적 고찰
선경,박영환,김범식,이건우,이영욱,백광제,정원상,곽영태,김형묵,Sun, K.,Park, Y.H.,Kim, B.S.,Lee, K.W.,Lee, Y.W.,Baek, K.J.,Jung, W.S.,Kwak, Y.T.,Kim, H.M. 대한흉부심장혈관외과학회 1988 Journal of Chest Surgery (J Chest Surg) Vol.21 No.6
From 1959 through Jun. 1988, 2094 cases of various Cardiovascular diseases were operated, which were consisted of 1215 open heart surgery under extra-corporeal circulation or hypothermia and 879 conventional Cardiovascular Surgery at Department of Thoracic & Cardiovascular Surgery in National Medical Center. There were 1111 congenital heart anomalies and 983 acquired cardiovascular diseases. Among 1111 congenital cases, acyanotic cases were 748 and cyanotic cases were 363. In acquired heart cases, valvular heart diseases [702 cases] were the most frequent and a small No. of cardiac tumor and coronary artery diseases were included. Overall operative mortality was 9.3%, consisting of 4.6% for acyanotic anomaly, 20.6% for cyanotic anomaly and 8.7% for acquired heart diseases. In open heart surgery, overall mortality was 11.6% and 6% in conventional cardiovascular surgery.