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박창권(C.G.Park),오병수(B.S.Oh),문훈영(H.Y.Moon) 한국자동차공학회 1997 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1997 No.6_2
The purpose of the paper is to analyze heat transfer within a running tire and to evaluate temperature variation. Geometry of the tire as well as the governing equation in physical domain is transformed into those in computational domain by boundary-fitted coordinates. An<br/> unsteady three-dimensional heat conduction equation is solved with heat convecton and radiation boundary conditions. The governing equation includes the conduction. convection and radiation terms. In this paper. we compared the numerical solutions with the experimental results. We know that the highest temperature region is the shoulder of tire. The result of this analysis coincides with the experimental one.<br/>
개에서 시행한 한쪽 이식 폐의 99m Tc - MAA 관류스캔
전석길(S . K . Zeon),류종걸(J . G . Ryu),박창권(C . K . Park),유영선(Y . S . Yoo),정덕수(D . S . Jung),이종길(J . K . Lee) 대한핵의학회 1997 핵의학 분자영상 Vol.31 No.3
N/A The aim of this study is to evaluate the efficiency of the pulmonary perfusion scan(Pp scan) in the experimental animal single lung transplantation. Eight left lung transplanted mongrel dogs were included in this study. The serial Pp scan with 111M.Bq 99mTc- MAA were done at the periods of immediate postoperative period, POD 3 days, and POD 10-14 days and finally autopsy was done in each cases. The transplanted lung perfusion was analysed as a percentage radioactivity of transplanted/native lung(T/N) ratio. The Pp scan of a donor mongrel dog was used as a reference(left/right lung (T/N) ratio : 85.2%). The average T/N ratio of all cases on immediate postoperative state(reperfusion injury) : 19.2%, three acute rejections : 12.6%, three bronchial dehiscences : 6.1% and two pulmonary thromboses : 2.0% Two cases showed moderate improvement of reperfusion injury as increasing the T/N ratio in POD 3 days Pp scan. The T/N ratio showed sequentially decreased in six cases. As a conclusion, the Pp scan could be a noninvasive method in the evaluation of the experimental one-lung transplanted mongrel dog.