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이중현,김용섭,이정호,이창우,김상욱,이문섭,오민구,하달봉,이경섭 동국대학교 의학연구소 2000 東國醫學 Vol.7 No.-
신장이식은 환자의 삶의 질을 높이고 거의 정상적인 사회생활을 가능하게 함으로써 말기신부전 환자의 3가지 신대체 요법(혈액투석, 복막투석, 신장이식) 중에 가장 효과적이고 각광받는 치료법이라 할 수 있다. 최근 들어 의료기술과 의학의 발달로 신장이식의 성공률은 과거에 비해 비약적으로 높아지고 있으며 국내에서도 점차 신장이식수술을 받는 환자가 증가하고 있으나 서울이나 다른 대도시에 비해 의료환경이 열악한 중소도시나 지방의 병원에서는 아직도 시행하지 못하고 있는 형편이다. 이에 저자들은 경북 최초로 자체 의료진에 의해 고혈압과 말기 신부전으로 동국대 포항병원에서 혈액투석을 받고 있던 32세의 남자환자에게 부인으로부터 신장을 제공받아 신장이식을 성공적으로 시행하였기에 문헌고찰과 함께 보고하고자 한다. Kidney transplantation is the preferred treatment modality for many patients with end-stage renal disease (ESRD), because it offers improved quality of life over both hemodialysis and peritoneal dialysis. Patients who do well after transplantation generally report improvement in vitality and freedom to return to the style of life that they experienced before their progression to ESRD. Recently, the success rate of kidney transplantation is greatly being increased as the surgical technique and immunosuppressive drugs are developed. Kidney transplantation is also popular in Korea which has good result. But, until now the general hospitals which are located at small city can't try the kidney transplantation because they don't have proper facilities and experts. We firstly experienced a case of kidney transplantation in a 32 years old man with hypertension and chronic renal failure at KyoungBuk province. So we report this case with references.
강혁주,김성욱,최석진,이중현,장재식,서영범,윤병구,박건욱,김성자,김용섭,강승완,이구,양창헌,이창우,김욱년,이광헌,서정일 동국대학교 의학연구소 2000 東國醫學 Vol.7 No.-
과립상 세포종은 Schwann 세포 기원으로 생각되며 인체에 비교적 드물게 발생한다. 과립상 세포종은 전신 어느 곳에서나 발견될 수 있으나 주로 혀, 구강, 피부 혹은 유방 등에서 호발하며 드물게 위장관에서 발견된다. 위장관에서는 식도에서 가장 호발하며 다음으로 위, 대장 순이다. 과립상 세포종은 대부분, 특히 위장관에서는 양성이며 소수의 악성 병변이 보고되었다. 이러한 이유와 함께 수술 전의 진단이 어렵기 때문에 과립상 세포종에 대한 근본적인 치료는 현재까지 외과적 절제술이다. 최근에 시도되는 치료방법들로는 내시경적 레이저 치료, 용종절제술, 내시경적 점막 절제술 등이 있다. 저자들은 상부 소화관 내시경검사를 시행하여 식도 과립상 세포종을 진단하고 내시경적 점막 절제술을 시행하여 합병증 없이 퇴원하여 현재 재발없이 경과 관찰중인 1례를 경험하였기에 보고하는 바이다. Granular cell tumors, which occur infrequently, are probably of Schwann cell origin. They can occur almost anywhere in the body but usually affect the tongue, oral cavity, skin, or breasts and are rarely found in the gastrointestinal tracts. The esophagus is the most frequent gastrointestinal site, followed by the stomach and the colon. Granular cell tumors are generally benign, especially in the gastrointestinal tract, some malignant lesions have been reported. For this reason, and also because preoperative diagnosis is difficult, the standard treatment for granular cell tumor has until now been surgical excision. In recent years, other therapeutic methods is endoscopic laser therapy (ELT), polypectiomy, endoscopic mucosal resection (EMR). We report a case of esophageal granular cell tumor which was diagnosed by an endoscopy and managed using an endoscopic mucosal resection without complication.
金庸燮 홍익대학교 산업기술연구소 1994 産業技術 Vol.3 No.-
Purpose of this paper is to inform those people involved in acquisition, design and building of waterjet propulsion craft,about mechanism and impact of interaction efficiencies on the propulsive characteristics. This paper is furthermore aimed at yielding information to asist in assessing the most appropriate method the determination of the overall efficiency.
폴리스타이렌 아이오노머와 액정중합체 블렌드의 기계적 성질
김희석,김준섭,최재곤,박기주,윤용국,진정일 조선대학교 생산기술연구소 1997 生産技術硏究 Vol.19 No.1
The dynamic mechanical properties of thermotropic liquid crystalline polyester (LCP) blends with polystyrene (PS) and Li sulfonated polystyrene (PSSLi) were investigated. It was found that PS forms an immiscible blend with LCP. However, above the matrix T_(g) of the PS, the addition of the LCP increases the modulus of the blend significantly because the LCP acts as filler below its T_(g). In PSSLi/LCP blend system, it was also found that, in the temperature range between two T_(g)s of the ionomer, the LCP acts as filler and thus increases the modulus of the blend. However, the filler effect of the LCP on the modulus decreases rapidly with increasing temperature and disappears above the T_(g) of the LCP. Finally, it was suggested that the PSSLi may be partially miscible with the LCP via ion-dipole interactions between a Li^(+) cation of the PSSLi and a carbonyl group of the LCP.
金庸燮,金島永 홍익대학교 산업기술연구소 1992 産業技術 Vol.1 No.-
Air cooling system that is operated by midnight electric power isused to save energy. It is important to know the velocity profile inthe mixing box to evaluate its performance, bacause the air cooled in evaporator and the recirculation air are mixed in the mixing box. This study carried out an experiment and a theoretical analysis to investigate the characteristics of the flow in the mixing box. The location of recirculation hole and the maximum mixing region are obtained. Also the effect of thickness ratio (t/h) is examined.
FRP폐선 자재를 활용한 폴리머 시멘트 몰타르 제조에 대한 연구
金庸燮 홍익대학교 산업기술연구소 2002 産業技術 Vol.12 No.-
Many studies have been carried out to cut down treatment expenses by recycling waste FRP. Among them, gasification, oil recovery by pyrolysis, and polymer cement mortar manufacture are major achievements. It is relatively simple to process polymer cement mortar manufacture, and it is also used for various purposes. Thus many researches in connection with it have been performed. At this study, waste FRP was crushed, then polymer cement mortar was made, and finally compression test was done. From the result, optimum mixture ratio of waste FRP has been found, and also optimum admixture mixture ratio that prevents compression strength from a decline has been found.
金庸燮 홍익대학교 산업기술연구소 2001 産業技術 Vol.11 No.-
Residual stresses and thermal deformation of a structure due to welding are very important factors for a weld design. Theoretical analysis has been carried out to investigate influence of heat flux to residual stresses and thermal deformation produced by circumferential welding. Temperature, stresses and deformation are obtain as a function of circumferential degree and distance from welding center line. These result can be applied to predict and remove the deformation or residual stresses built up by welding.