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역설계 시스템을 이용한 고속 Air-Blower의 특성 해석
제우성(Woo Seong Che),이동수(Dong Soo Lee),신재진(Jae-Jin Shin),안진우(Jin-Woo Ahn),이동희(Dong-Hee Lee) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.4
This paper presents a reverse engineering technology for the analysis and design of a high speed air-blower system. The characteristics of air-blower is dependent on a motor and a flow of a impeller. In this paper, a impeller shape and a flow of an air-blower' system are reverse engineered to analyzed the output characteristics. And the results are verified by a practical test. The reverse engineering for an air-blower can be used to improve the performance of blower flow.
Phenylhydrazine으로 처리한 토끼 적혈구의 Aspartate Aminotransferase Isozyme의 활성도
신재진,이동욱,이희성 중앙대학교 의과대학 의과학연구소 1981 中央醫大誌 Vol.6 No.2
The activity of aspartate aminotransferase(L-aspartate:2-oxoglutarate aminotransferase, EC 2.6.1.1) isozymes in red blood cells were studied during induction of and recovery from phenylhydrazineproduced reticulocytosis. Aspartate aminotransferase activity was assayed by calorimetric method of Reitman and Frankel. The results obtained were as follows: 1. Red blood cells of normal rabbit contained about 2.5%, of reticulocytes. 2. Total activity of aspartate aminotransferase in normal blood cells was 20.30 units and the relative activity of cytosolic and mitochondrial aspartate aminotransferase isozymes were 98.5% and 1.5%, respectively. 3. The reticulocyte count in phenylhydrazine-treated rabbit increased to a value of about 55%, on day 5, and attained a value of essentially 100% on day 6. 4. Total aspartate aminotransferase activity was maximal on day 7, about 49.85 units, which is about 2.46 fold higher than normal value. The relative activity of cytosolic and mitochondrial aspartate aminotransferase isozymes were 90.27% and 9.73%, respectively. 5. The increase in total aspartate aminotransferase activity during the induction of reticulocytosis was due primarily to the 16.17 fold increase in the activity of the mitochondrial isozyme (K_s=0.0325; K_d =O.0067; t(1/2)=103.43hr). 6. The activity of the cytosolic isozyme increased to about 2.4 times its normal value(K_s=0.8496;K_d=0.0177; t(1/2)=39.15hr). 7. The rate constants following recovery from phenylhydrazine treatment were: K_s=0.0132; K_d=0.0440; t(1/2)=15.75hr. for the mitochondrial isozyme and K_s=0.5340; K_d=0.0267; t(1/2)=25.96hr. for the cytosolic isozyme.