2008 가을 학술대회 축사

김창세(Chang-Se Kim) 한국콘크리트학회 2008 콘크리트학회지 Vol.20 No.6

DC 서보모터의 센서리스 속도 제어

김창세(Chang-Se Kim),하윤수(Yun-Su Ha),하주식(Joo-Shik Ha) 한국해양대학교 해사산업연구소 1998 海事産業硏究所論文集 Vol.7 No.-

DC servo motors are widely used in many industrial fields as actuator of robot and driving power motors of electrical vehicle. Usually in the speed control systems of DC servo motors, speed sensors are required and this fact results in the increased price and operating cost and the limitted application of the motors. In this paper, a new speed control method for DC servo motor is proposed. In the scheme, the rotational speed is estimated by the measurement values of the armature voltage and current, instead of measurement by sensor. This paper also report on the results of experiments to prove the validity of the proposed method.

건설교통 R&D 혁신로드맵과 건설 R&D 정책방향

金昌世(Kim Chang Se) 대한건축학회 2007 建築 Vol.51 No.3

수도 행정에 바란다

김창세,Kim, Chang-Se 한국상하수도협회 1993 水道 Vol.60 No.-

Cryofibrinogenemia의 임상적 연구

박천규(Chun Kyu Park),윤세영(Se Young Yun),김창세(Chang Se Kim) 대한외과학회 1976 Annals of Surgical Treatment and Research Vol.18 No.7

알코올 투여로 온 흰쥐의 혈액성분의 변화와 간조직 손상과의 상호관계에 관한 연구

조만희,김창세 순천향대학교 1986 논문집 Vol.9 No.2

The white rats were divided by 3 groups; 0.6g(group A), 1.8g(group B) and 4.8g(group C) of alcohol per kg of body weight. The ethanol has been administered to the stomach with a polyethylene catheter using 20% ethanol solution for 30 days. In 5 day interval from the begining, the white rats were sacrificed to collect sample for blood analysis and histopathological observation. And the following results were obtained. 1. The most variable changes of blood components to be influenced by alcohol administration were; alcohol concentration, activities of liver ADH and GOT, numbers of RBC and WBC, amounts of triglyceride and total cholesterol and α₂-globulin fraction. 2. The liver histopathological changes, depending on the amounts and feeding days from the alcohol administration, were observed; normal finding on 1st to 10th and after then mild ballooning degeneration, necrosis of hepatic parenchymal cells in portal tract, mild infiltration of lymphocytes and fats degeneration. 3. The interrelationship between changes of blood components and histopathological damage of liver were coincide on 10th to 20th in the aspects of remarkable changes. From the above summary the amount and duration of ethanol-administration were influenced on changes of blood components and histopathological findings of liver while the early period usually 1st to 10th day was observed no more pathological changes but after then significants changes observed. From the above result there were suggested that the alcohol retaining in the body in a long period were results to appear in biochemical metabolic change.

알코올 및 인삼액이 효소활성도에 미치는 영향에 관한 연구

신경현,조만희,김창세 순천향대학교 1994 논문집 Vol.17 No.2

This study was investigated for the change of r-GTP, CPK activity and CPK-isoenzyme by alcohol and Ginseng administration, The normal white S.D rats were classified with four groups; ethanol treated was group A, ethanol pretreated group combined pretreated with Ginseng extract was group B, Ginseng extract treated was group C, and Ginseng extract treated group combined pretreated with ethanol was group D. The white rats of four groups were treated with 20%, 30%, 40% ethanol and/or 1% Ginseng extract. Then enzyme activities such as r-GTP, CPK and CPK-isoenzyme had been measared in serum, hepatic, and renal tissues. The sample was collected by 5 day intervalus for 25 days. The following results were obtained. 1. The changes of serum r-GTP activities were significantly increased in ethanol-treated group, decreased in Ginseng-treated group. 2. The changes of hepatic r-GTP activites were significantly increased in ethanol-treated group, decreased in Ginseng-treated group. 3. The changes of renal r-GTP activites were significantly increased in ethanol-treated group, decreased in ginseng-treated group. 4. The changes of serum CPK activites were significantly increased in ethanol-treated group, decreased in ginseng-treated group. 5. The changes of hepatic and renal tissue CPK activites were not significant. 6. The changes of serum and hepatic tissue CPK-isoengyme were significantly increased in ethanol-treated group, decreased in ginseng-treated group combined pretreated with ethanol. 7. The changes of CPK-isoengyme, CPK 1 and CPK 2 were not significant.

Carotenoids 식이와 알코올이 혈액학적 성분과 간조직에 미치는 영향에 관한 연구

조만희,김연선,이상한,우기민,장예진,김창세 순천향의학연구소 1999 Journal of Soonchunhyang Medical Science Vol.5 No.2

Alcohol is well known agent which can damage the human tissues such as liver via stimulating lipid peroxidation and storage, denaturation of macromolecules, and inhibiting protein metabolism. On the other hand, carotenoids in addition to vitamins A, C, E and lipoic acid, play important roles in protecting these oxidative damages as well as preventing the production of free radicals. This study was carried out to elucidate the precise effects of alcohol administration into rats on the antioxidative functions of dietary carotenoids and isolated β-carotene, and to find out any parameters to uncover more detailed biochemical mechanisms of these agents. For these purposes, two different approaches were performed: 1) examination of the changes in hematological parameters (e.g., total proteins, A/G ratio, ALT/AST et. al) and statistical correlations among inter- and intragroups, 2) examination of the histopathological changes by an electron microscope. The results were analyzed and summarized as following; (1) Carrot diet for one week caused a slight increase in albumin. A/G ratio and AST levels, and a slight decrease in ALT, ALP, BUN and uric acid levels. Two-week alcohol administration following carrot diet increased total proteins, albumin A/G ratio and BUN levels. However, both groups were shown to have little significant changes in cholesterol concentrations. (2) Cheese diet for one week caused a significant increase in total proteins, albumin, AST, ALP, uric acid and total cholesterol levels, and a significant decrease in A/G ratio and glucose concentrations. However, two-week β-carotene diet following cheese intake increased total proteins albumin, A/G ratio, BUN and total cholesterol levels, whereas AST, ALT, ALP and uric acid levels were decreased. (3) Alcohol administration for one week caused an increase in AST activities and a decrease in total proteins, albumin, ALT, ALP and BUN levels. A successive β-carotene diet following alcohol administration increased total proteins, albumin, ALT, ALP and BUN levels, whereas decreased AST and uric acid levels. However, there were not significant changes in A/G ratio, glucose and total cholesterol levels in both groups. (4) β-carotene diet for one week caused a slight increase in albumin, glucose, AST and uric acid levels, and a slight decrease in ALP and BUN levels. Two-weeks alcohol administration following β-carotene diet increased albumin, glucose, BUN and total cholesterol levels, whereas decreased AST, ALT, ALP and uric acid levels. (5) Although the pathological investigation on the liver did not reveal significant changes, cheese diet group (CH-BC/1-CH) was shown to have some lipid deposits. Some results were unexpected and different from typical hematological changes shown by other researchers. Nonetheless, these results strongly suggest that the liver damage or hepatism caused by alcohol intake affects many kinds of biochemical metabolisms, which results in significant changes in many hematological parameters. In addition, dietary carotenoid and isolated β-carotene were shown to have protective roles against the biochemical changes by alcohol intake.

알코홀이 r-GTP 활성에 미치는 인삼의 영향

이상한,조만희,신경현,김창세 순천향대학교 1989 논문집 Vol.12 No.3

This study was carried out to investigate the effects on the changes of the r-glutamyl transpeptidase activity of ethanol-administered white rats. There was classified into group; ethanol treated group(group A), ethanol treated group which was pretreated with ginseng extract(group B), ginseng extract treated group(group C), and ginseng extract treated group which was pretreated with ethanol(group D). White rats of four groups were treated with combined 1% ginseng extract and / or 20% ethanol for 30 days, and were measured the changes of r-GTP activity on the serum, hepatic and renal tissue sample collected at 5 days interval. Following results have been obtained. 1. The changes of serum r-GTP activity were significantly decreased in ethanol treated group B which was pretreated with ginseng extract than in ethanol treated group A. The values were highly significant at the 20th day of feeding. 2. The changes of hepatic r-GTP activity were more increased in group A and decreased in group D. The values were found significantly lowest in 10th and highest in 5th days. 3. The changes of renal r-GTP activity were more increased in group A and decreased in group D. The values were significantly highest in 10th and lowest in 20th days. Based on these results it was found that the changes of r-GTP activity between serum and hepato-renal tissue were exist and the protective action of ginseng against alcohol degradative effects was noted.

HPLC를 이용한 농약 Carbendazim의 측정법에 관한 연구

김준서,조만희,이상한,김창세 순천향의학연구소 1997 Journal of Soonchunhyang Medical Science Vol.3 No.1

The measurements of pesticide Carbendazim were studied and following conditions were proposed as a most good methods; 1. There were detected at 204 nm by means of Hitachi 200-20 spectrophotometer. 2. Pesticide Carbendazim mesurement was performed by menas of ISCO model 2350, spherisorb ODS column, 70% acetonitrile as a solvent phase, flow rate 0.5 ml/min, chart speed 0.5 cm/min, and 25℃ oven temperature. 3. The relationships between the concentration and absorbance of pesticide Carbendazim were linear from 2.5 to 15 ppm. 4. It showed stable result in Folin-Wu, and the recovery rate was also good.