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위장관 ( 胃腸管 ) : 소아장중첩증의 치료에 영향을 주는 요인 분석
김종우(J . W . Kim),황의호(E . H . Hwang),최승훈(S . H . Choi),이철(C . Lee),김규언(K . U . Kim),이승규(S . K . Lee),오기근(K . K . Oh),손영모(Y . M . Son) 대한소화기학회 1990 대한소화기학회지 Vol.22 No.3
N/A We report the retrospective analysis of 111 patients with intussusception who were admitted to the Department of Surgery and Department of Pediatrics of Yongdong Severance Hospital from March 1,1988 to August 31,1989. SPSS-PC with IBM-AT personal computer was used for the analysis of the data. Following results were obtained. 1) 79 patients were successfully treated with Barium reduction and patients underwent sugical management. The success rate of Barium reduction was 71.2%. 2) Male to female ratio was 1.8:l. Occurrence of the age under 12 months was 69.6% for surgically treated group and 78.1%. for medically treated group. 3) Mean hospital stay of surgically treated group was 7.5 days and that of medically treated group was 3.9 days. (p=0.012) 4) Duratian of symptom was 38.6 hours for surgically treated group and 25.4 hours for medically treated group.
김종우 ( J W Kim ),김태진 ( T J Kim ),나광연 ( K Y Ra ) 한국축산학회 1970 한국축산학회지 Vol.12 No.3
This study was accomplished to find out the degree temperature effects on preservation of goat`s milk. The milk was tested under the controlled temperatures 35℃, 25℃, 15℃ and 5℃. The milk was drawn from 30 goats kept in the Taejon area and was preserved for 120 hours in the laboratory. The results of the acidity test, alcohol test, boiling test, pH test, methylene blue test and bacterial counts were as follows; 1. The acidity was 0.147% just after milking. The milk mainfained freshness(0.168%) for 8 hours at 35℃, (0.179%) for 20hours at 25℃,(0.170%) for 48hours at 15℃ and(0.161%) for 120 hours at 5℃. 2. The results of the alcohol test indicated negative for 4 hours at 35℃ and 25℃, 16 hours at 15℃ and 120 hours at 5℃. 3. The results of the boiling test were negative for 8 hours at 35℃, 20 hours at 25℃, 72 hours at 15℃ and 120 hours at 5℃. 4. The results of the pH test were pH 6.2 and did not change for 8 hours at 35℃, 16 hours at 25℃, 48 hours at 15℃ and 120 hours at 5℃. 5. The methylene blue reduction test showed that milk maintained it`s freshness for 12 hours at 35℃, 16 hours at 25℃, 48 hours at 15℃ and 120 hours at 5℃. 6. The total bacterial counts of goat`s milk were 200,000/㎖ just after the milking. It was also found that the milk maintained freshness for(980,000/㎖) 4 hours at 35℃, (930,000/㎖) 4 hours at 25℃, (1,400,000/㎖) 8 hours at 15℃ and(1,800,000/㎖) 120 hoars at 5℃. 7. In summary, Goat`s milk produced in Korea during the summer can be preserved for 4 hours at 35℃ and 25℃, 8hours at 15℃ and 120 hours at 5℃.
간접 분사식 디젤 기관에서 메탄올/경유 Dual 연료에 의한 성능 및 배출물 특성에 관한 연구
김종우(J.W. Kim),배상수(S.S. Pae),이상준(S.J. Lee),김유광(Y.K. Kim) 한국자동차공학회 1996 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1996 No.6_2
This paper presents the characteristics of the performance and the emissions of indirect diesel engine by using the dual fuel, which is composed of the methanol and the diesel. To do this, fumigation and mixing injection method were applied respectively, and compared with each other. In additions, the intake air temperature were varied from the ambient temperature to 50 "C in order to investigate the effects of the higher latent heat of methanol. In fumigation, the<br/> air assisted injection assembly are used to accelerate the atomization of methanol. As a results, the load are the main factor to limit the mixing ratio, so fumigation is better than the mixing injection, because of controlling the mixing ration in proportional to the load.<br/>
김종우(J. W. Kim),김현규(H. k. kim),박호준(H. J. Park),전충환(C. H. Joen),장영준(Y. J. Chang) 한국자동차공학회 1996 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1996 No.11_2
To diagnosis the complexible diesel fuel combustion processes and spray characteristics, many simplified injection systems are developed and used. Especially it is very popular that the solenoid servo valve use to control the fuel providing from injection pump to injector, but this system cause some problems, one of them is that makes a unsteady motion of needle when operating time is not enough. In this study, to clarify the effect of this unsteady motion of needle was measured by the injection rate and spray characteristics with using needle lift sensor.<br/>