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RISS 인기검색어
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- 저자 : 이성욱(S. Lee) (검색결과 90 건)
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여호와 증인 환자에서 산부인과적 무혈 수술의 임상적 고찰
이성욱(S.W. Lee),오일영(I.Y. Oh),서상기(S.G. Seo),반태학(T.H. Ban),박윤희(Y.H. Park),박성철(S.C. Park),한광수(K.S. Hahn) 대한산부인과학회 2000 Obstetrics & Gynecology Science Vol.43 No.5
Objective : Jehovah's Witnesses are members of a religious denomination whose beliefs prohibit the use of blood or blood products. Plasma volume expanders and extracorporeal hemodilution of the patients's own blood are theologically acceptiable. And so we evaluated effectiveness of major operative procedures carried out on Jehovas's Witnesses patients without blood transfusions or blood products. Methods : We retrospectively studied 50 cases of Jehovas's Witnesses who underwent obstetric and gynecologic bloodless surgery from February 1995 to August 1999. No patients recieved any blood or blood products during hospitalizaion. Results : The age distribution of patients was between 9 years and 58 year, average 36.7±8.7 years old. The most common cases for bloodless surgery was Cesarean section. The recombinant human erythropoietin(EPO) was treated in 5 cases of Cesarean section, 2 cases of TAH and 2 cases of ovarian tumor perioperatively. EPO-treated 9 cases were increased postoperative mean Hb levels compared with preoperative mean Hb levels. Histology revealed 9 cases of adenomyosis, 8 cases of leiomyoma, 3 cases of germ cell tumor, 2 cases of ectopic pregnancy, 1 case of CIS, 1 case of Krukenberg tumor, 1 case of epithelial cell tumor, 1 case of hemorrhagic corpus tumor and 1 case of sexcord stromal tumor, total 27 cases. There was no operative death and postoperative morbidities were few. Conclusions : We concluded that if we preformed the surgeries with careful operative techniques and various blood conserving procedures we could do the bloodless surgery of Jehovah's Witnesses with relative safety. But the establishment of a well programmed special medical supports for the Jehovah's Witnesses community will be needed in future.
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붐 형상 변화에 따른 컨테이너 크레인 구조 안정성의 실험적 해석
이성욱(S. W. Lee),한동섭(D. S. Han),심재준(J. J. Shim),한근조(G. J. Han),김태형(T. H. Kim) 한국정밀공학회 2006 한국정밀공학회 학술발표대회 논문집 Vol.2006 No.5월
This study was carried out to analyze the effect of wind load on the structural stability of a container crane according to the change of the boom shape using wind tunnel test and provide a container crane designer with data which can be used in a wind resistance design of a container crane assuming that a wind load 75m/s wind velocity is applied in a container crane. Data acquisition conditions for this experiment were established in accordance with the similarity. The scale of a container crane dimension, wind velocity and time were chosen as 1/200, 1/13.3 and 1/15. And this experiment was implemented in an Eiffel type atmospheric boundary layer wind tunnel with 11.52㎡ cross-section area. Each directional drag and overturning moment coefficients of a container crane according to the change of the boom shape were investigated.
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풍동실험을 이용한 관절형 컨테이너 크레인의 구조 안정성 해석
이성욱(S. W. Lee),심재준(J. J. Shim),한근조(G. J. Han),김태형(T. H. Kim) 한국정밀공학회 2005 한국정밀공학회 학술발표대회 논문집 Vol.2005 No.10월
This study was carried out to analyze the effect of wind load on the structural stability of a 50ton articulation type container crane using wind tunnel test and provide a container crane designer with data which can be used in a wind resistance design of an articulation type container crane assuming that a wind load 75㎧ wind velocity is applied in an articulation type container crane. Data acquisition conditions for this experiment were established in accordance with the similarity. The scale of an articulation type container crane dimension, wind velocity and time were chosen as 1/200, 1/13.3 and 1/15. And this experiment was implemented in an Eiffel type atmospheric boundary layer wind tunnel with 11.52㎡ cross-section area. Each directional drag and overturning moment coefficients were investigated and uplift forces at each supporting point due to the wind load were analyzed.
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