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자당분해효소 (蔗糖分解酵素) 측정에 의한 위암에서의 (胃癌) 장형화생의 (腸形化生) 의의
송인성 ( In Sung Song ),오인혁 ( In Hyeog Oh ),이계희 ( Kye Heui Lee ),김해련 ( Hae Ryeon Kim ),정형배 ( Hyeong Bae Jung ),김정룡 ( Chung Young Kim ) 대한소화기학회 1986 대한소화기학회지 Vol.18 No.2
Enzyme histochemistry of the gastric surface epithelium has been found to be valuable in diagnosing atrophic lesions with intestinal metaplasia of gastric mucosa. And interest in intestinal metaplasia of gastric mucosa as the origin of gastric carcinoma has increased considerably. To identify the type of intestinal metaplasia of stomach in gastric cancer by direct measurement of surcrase activity from gastric mucosa, we conducted this study. We obtained following results; 1) Intestinal metaplasia in atrophic gastritis showed two types, small intestinal type (46.1%) and colonic type (53.9%). Which was judged by direct measurement of sucrease activities from gastric mucosa. 2)In remnant stomach small intestinal type of metaplasia was observed in 55.6%, and 16.6% of gastric mucosa in benign gastric ulcer showed small intestinal type of metaplasia. 3)In gastric cancer, 37% of non-tumor bearing mucosa showed samll intestinal type of metaplasia. Our results suggest that degree of differentiation of intestinal metaplasia has no direct relationship with malignant potential in stomach.
판상엽 배합비와 공기희석율이 제품담배 연기성분 및 연소온도 변화에 미치는 영향
성용주,한영림,백신,김시몽,제병권,오인혁,이창국,김수호,신창호,김근수,Sung, Yong-Joo,Han, Young-Lim,Baek, Shin,Kim, Shi-Mong,Jeh, Byong-Kwon,Oh, In-Hyeog,Lee, Chang-Kook,Kim, Soo-Ho,Shin, Chang-Ho,Kim, Kun-Soo 한국연초학회 2008 한국연초학회지 Vol.30 No.2
The application of RECON(Reconstituted tobacco sheet) and the ventilation technology has been considered as very useful methods for controlling the tar and nicotine deliveries in modern blended tobacco. In this study, the effects of RECON contents in simulated blends on the smoke delivery and burning temperature were evaluated in three different ventilation levels. The ventilation showed a great influence on the burning temperature and smoke deliveries. The nicotine, tar and CO deliveries was greatly reduced by the ventilation. The amount of RECON showed the minor impacts on the smoke delivery. In high ventilation level such as 85 % ventilation, there was no distinct change in smoke deliveries by the amount of RECON.
김기범,권대규,이삼철,김성종,정인수,오인혁,김기주,변윤섭,정경락 한국화학공학회 2004 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.42 No.2
본 연구는 급성호흡부전환자를 치료하기 위하여 사용되고 있는 혈관 내 폐 보조장치의 기체전달을 향상시키기 위하여 중공사막에 진동기법을 사용하여 기체전달을 향상시키고자 시도하였다. 그리고 혈관 내 폐 보조장치를 정맥에 삽입하기 전, 혈관 내 폐 보조장치의 설계조건을 실험적 모델을 통하여 기체전달을 예측할 수 있는 예측식을 만들고자 하였다. 실험결과, 본 연구에서는 진동기법이 기체전달을 향상시키는데 효과적임을 확인할 수 있었다. 뿐만 아니라, 충진율과 가징 주파수의 함수관계를 이용하여 기체전달을 예측 할 수 있었다. 실험에 의하여 얻어진 결과는 예측식에 의하여 얻어진 결과와 유사한 결과를 얻었다. 그러므로 본 연구에서는 충진율과 가진 주파수의 함수를 이용하여 VIVLAD의 기체전달을 예측할 수 있었다. In this paper, we tried to improve gas exchange of the vibrating intravascular lung assist device(VIVLAD) using vibrating method in the hollow fiber membrane, for the patients suffering from acute respiratory distress syndrome(ARDS). And we tried to formularize prediction equations to make a prediction about gas transfer for designing intravenous artificial lung assist device, and designed modules under various conditions were studied through an experimental modeling before inserted the artificial lung assist device into as venous. As a result, we are convinced that vibration method is very useful for the has transfer increasing. Also, we can estimate the gas transfer as a function of the packing density and excited frequencies. The gas transfer obtained from the experiment was similar to that from the prediction equation, confirming the usefulness prediction equation. Therefore, we can estimate the gas transfer of the VIVLAD as a function of the packing density and excited frequencies.