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김연대(Yeon-Dae Kim),손지은(Ji-Eun Son),손성문(Seong-Mun Son) 인문사회과학기술융합학회 2018 예술인문사회융합멀티미디어논문지 Vol.8 No.8
기술격차로 인해서 발생되는 기술무역의 파생효과와 기술무역에 따른 기술무역수지를 살펴보고 기술무역과 상품무역의 상관관계에 대해서 알아보고자 한다. 우리나라와 주요국 사이의 기술 격차가 가져다주는 기술무역의 현황과 기술무역의 수지를 파악하여 상품무역에 영향을 미치는 기술무역의 역할을 연구해보고자 한다. 그리고 국가전략기술 전체의 주요국 기술수준 변동과 국가전략기술의 주요국 기술격차 변동을 파악한 다음 국가전략기술 전체의 기술수준 과 기술격차 변동을 함께 동시에 살펴봄으로서 우리나라의 기술무역이 차지하는 비중을 알아보고자 한다. 기술 격차에 따른 기술도입은 기술무역수지의 적자를 유발하면서도 상품 생산성 증대로 인하여 상품무역 수지 흑자를 유발하여 정의 효과를 가져다주는 순기능을 하고 있음을 발견할 수 있었다. 상품수출 증가에 따라 선진국으로부터 기술도입에 따른 기술비용증가로 기술무역수지 적자규모가 커지더라도 기술무역 규모의 확대는 상품무역 수지 개선을 통해 경제성장에 올바른 영향을 미치고 있음을 확인하였다. This study examines the effect of technology trade on technological trade gap and the relation between technology trade and commodity trade. This study examines the status of technology trade brought about by the technological gap between Korea and major countries, and studying the role of technology trade affecting commodity trade by identifying the balance of technology trade. The purpose of this study is to investigate the technological level and the technological gap between the major countries of the national strategic technology, and the proportion of Korea s technology trade. The introduction of technology according to technological gap has been found to cause a deficit in the trade balance of technology, but it has a positive effect of bringing about a positive effect by inducing a trade surplus of commodity due to increase of product productivity. It is confirmed that the expansion of the volume of technology trade has a positive effect on the economic growth through the improvement of the trade balance of goods even if the technical trade deficit is increased due to the increase of technology costs due to the introduction of technology from developed countries.
거대 간세포암에 대한 In-situ Hypothermic Perfusion Hepatectomy
이승규 ( Lee Seung Gyu ),안철수 ( An Cheol Su ),황신 ( Hwang Sin ),김기훈 ( Kim Gi Hun ),박광민 ( Park Gwang Min ),문덕복 ( Mun Deog Bog ),하태용 ( Ha Tae Yong ),오기봉 ( O Gi Bong ),조성훈 ( Jo Seong Hun ),김연대 ( Kim Yeon Dae 대한소화기학회 2003 대한소화기학회 추계학술대회 Vol.2003 No.-
거대 간세포암(Giant Hepatocellular Carcinoma; 직경>20 cm)이 간의 중앙부위에 발생하게 되면 간문부를 압박하게 되고 이는 이차적으로 폐쇄성 황달을 초래할 수도 있으며 혈관내압이 낮은 간내하대정맥과 문맥을 압박하여 복수, 하지의 부종 및 위-식도 정맥류 출혈을 유도할 수도 있다. 일반적으로 내과의들은 거대 간세포암의 치료로써 외과적 절제보다는 반복적인 간동맥 색전을 선호하는 소극적인 경향이 있다. 거대 간세포암은 대부분 팽창성
복부둔상에 의한 소장천공에서 시간경과에 따른 CT와 임상소견의 분석
강영준(Young Jun Kang),이용석(Yong Seuk Lee),백용해(Yong Hae Baik),최원용(Won Yong Choi),곽범석(Beom Seok Kwak),김연대(Yeon Dae Kim),박영진(Young Jin Park),김홍용(Hong Yong Kim) 대한외과학회 2008 Annals of Surgical Treatment and Research(ASRT) Vol.75 No.4
Purpose: The high mortality and morbidity rates associated with traumatic rupture of the small bowel have been attributed to the clinical difficulty of establishing an early diagnosis. CT scan is the most widely used tool for the diagnosis of blunt abdominal trauma, but its accuracy in diagnosing small bowel perforation is still controversial. This study was conducted to determine the overall and time-dependent diagnostic value of abdominal CT and the clinical findings of small bowel perforation. Methods: The clinical data and CT images of 21 patients with small bowel perforation after blunt trauma were retrospectively analyzed. The patients were divided into the early and late elapsed time groups based on the elapsed time of 8 hours from the initial trauma to the time of evaluation. Results: Any changes of the vital signs, including hypotension, tachycardia or fever, were observed in only half of the patients. Signs of peritonitis were evident in 7/11 of the early lapse group and in 10/10 of the late lapse group. The most common CT finding of small bowel perforation was free peritoneal air (17 of 21 patients), followed by segmental bowel wall thickening (15/21), high density ascites (14/21), an intermesentric fluid collection (13/21) and mesentic fat obliteration (11/21). Extraluminal air and segmental bowel wall thickening were detected more frequently in the late lapse group (P=0.03 and 0.01, respectively). In the one patient, bowel perforation was not evident at the initial evaluation according to the clinical findings and CT, but the follow-up CT exam showed specific findings for bowel perforation. Conclusion: CT scanning is a sensitive and effective modality for the evaluation of small bowel perforation, but this is less sensitive during the earlier post traumatic period. Therefore, careful clinical and radiological follow up is necessary for suspected cases, and even when an initial evaluation shows negative findings for bowel injury.