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RISS 인기검색어
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- 저자 : 김기만 (검색결과 505 건)
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김기만 대한흉부심장혈관외과학회 1989 The Korean Journal of Thoracic and Cardiovascular Vol.22 No.6
We have reviewed 73 patients who experienced hemoptysis with pulmonary tuberculosis to analyze the factors contributing hemoptysis and its management The result are; 1. The age group between 30 * 50 years old was major prevalent group [59%]. 2. Sexual ratio was 3.9 to 1, as 58 men and 15 women. 3. In 58 patients [79.5 %], the number of hemoptysis in frequency was less than 5 times. 4. The quantity of hemoptysis was ranged from less than 50 ml to more than 600 ml and 20 patients [27.4%] experienced bleeding more than 600 ml at once. 5. There was no seasonal difference in hemoptysis. 6. The common prodromal symptoms of hemoptysis were coughing, fatigability, hot foreign sensation of throat in order of frequency. 7. In chest roentgenographic finding, the cavitary lesion was the most common finding, 67% [51 cases], and the multiple cavity was 19.2%[14 cases]. 8. 23 patients [31.37%] were operated for control of hemoptysis and pulmonary tuberculosis itself, 7[30.43 %] of them suffered from complication of empyema, respiratory failure, empyema with bronchopulmonary fistula. 9. One patient [4%] was died due to respiratory failure after left thoracoplasty.
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태양열을 이용한 메탄의 수증기 개질 반응기 연구Part 1. 수증기 개질 반응에서의 최적 반응 조건 탐색
김기만,강용혁,한귀영,남우석 한국태양에너지학회 2005 한국태양에너지학회 논문집 Vol.25 No.4
The reaction of steam reforming of methane with commercial catalysts was conducted for thermochemical heat storage. The reaction conditions were investigated for temperature range of 700 to 900 ℃ and steam to carbon mole ratios between 3.0 and 5.0. The reactor was made of stainless steel and it's dimension was 12 cm inside diameter and 6cm long. The effects of space velocity and reactants mole ratio and temperature on the methane conversion and CO selectivity were examined. Optimum reaction condition was determined. There was not a significant difference of methane conversion and CO selectivity compared to conventional reactor.
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