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임동순(D. S. Yim),박찬현(C. H. Park),조남찬(N. C. Cho),오현승(H. S. Oh) 한국산업경영시스템학회 2009 한국산업경영시스템학회지 Vol.32 No.3
This paper introduces a case study for efficient generation of production schedules in a tube manufacturing system. The considered scheduling problem consists of two sub problems : lot sizing for a job and job sequencing. Since these problems require simulation optimization in which the performance measures are obtained by simulation execution, the trade-off between solution quality and computation time is an important issue. In this study, the optimal lot size for every product type is determined from simulation experiments. Then, target production quantity for each product type is transformed to several jobs such that a job consists of determined lot size. To obtain the good solution for a job sequence in a reasonable time, a number of alternatives are generated from heuristic rules developed by intuition and analysis of the considered system, and a job sequence is selected from simulation experiments.
위암 (胃癌) 환자 708예에 대한 임상적 (臨床的) 관찰
이민호(M H Lee),이동후(D H Lee),박경남(K N Park),이호채(H C Lee),박찬현(C H Park),손락지(R J Sohn) 대한소화기학회 1982 대한소화기학회지 Vol.14 No.1
N/A The incidence of stomach cancer, which was one of the commonest malignancies has been a little decreased recently, but it is still in the first rank in Japan, Finland and Korea. In the respect of portance of stomach cancer, we analysed 708 cases of stomach cancer which were confirmed by endoscopic biopsy from Mlarch 194 to February 1982 in Hanyang University Hospital. The results were as follows: 1. The peak age of stomach cancer was 7th decade(29.2%) and male to female ratio was 2.1: 1 with male preponderance. 2. The patients groups who had under 3 months duration of illness before confirmatory diagnosis was 33.9% and over 12 months was 31.5%. Indigestion was the most common subjective symptom(53.2%) and epigastric pain, weight loss, hunger pain and belching were common symptoms in order of frequency. 3. The most common blood type was type A(36.4%) and O type, B type and AB type in order of frequency. 4. There was no statistically significant difference in incidence not only between smoking group and nonsmoking group(p>0.1), but also between alcohol drinker group and non drinker group(p>0.1). 5. The cases with achlorhydria or hypochlorhydria were 74.7%(162/217). 6. The proportion of patients with anemia(Hb. under 12 gm%) was 59.4%, 7. The most predilection site of stomach cancer was antrum and body(90.6%) and the most common Borrmanns type was type g (47.5%). 8. The most common histological type was adenocarcinoma(74.6%) and positive result rate of biopsy with gastroscope for stomach cancer was 93.4%. 9. The numbers of patients who had got operation were 316cases of 708cases(44.6%)
전대원(D. W. Jun),조경란(K. R. Cho),김상목(S. M. Kim),강경원(K. W. Kahang),김호중(H. J. Kim),강종명(C. M. Kang),박찬현(C. H. Park) 대한신장학회 2000 Kidney Research and Clinical Practice Vol.19 No.1
N/A We investigated the clinical manifestations of hemorrhagic fever with renal syndrome in civilian. We retrospectively reviewed the clinical manifestations and laboratory findings of the thirty-nine patients who had visited our hospital. The characteristic clinical findings observed in these patients were lower incidence of hemorrhagic tendency such as conjunctival hemorrhage(13%) and petechial hemorrhage (18%) and higher incidence of gastrointestinal symptoms such as abdominal pain and nausea(69%). And only 5Yo of the patients had the hypotensive period. Laboratory findings showed comparatively mild degree of thrombocytopenia and decreased renal func- tion. However ALT and AST were revealed abnormally increased at 82.1% and 66.7% of the patients respectivelly. The above results represented that the recent infections of hemorrhagic fever with renal syndrome in civilian showed atypical manifestations of lower incidence of the hypotensive period and lesser hemorrhagic tendency, so we should consider hemorrhagic fever with renal syndrome as a diagnosis when a patient has these clinical features in epidemic seasons.
박승철,이미안,최혜란,최한상,김성윤,정선근,박찬현,김태화,석성억,이창홍 대한감염학회 1984 감염 Vol.16 No.1
Cefotaxime은 반합성 Cephalosporin 제제로서 광범위항생제이며 β-lactamase에 안정성을 갖고 있으며 S. typhi에 대해서는 최저저지농도가 0.04㎍/dl로서 매우 유요한 것으로 나타나 있다. Mekendrik은 2예의 장티푸스환자에서 Cefotaxime 4.0gm/day 치료로 임상적인 효과를 못보았다고 한다. 그 이유는 Cefotaxime이 포유동물의 세포내로 침투하기 어려운 때문이라고 하였으며 또다른 임상연구에서는 Cefotaxime 투여 24시간후 혈액배양에서 S. typhi가 자란다고 한다. 본 연구에서는 45명의 많은 환자에서 Cefotaxime을 투여한 결과 비교적 양호한 치료효과를 얻었다. Table2에서 보는 바와 같이 45명중 31명이 7일이내에 치료 효과를 보였다. 평균 치료기간이 6.9일로서 Chloram-phenicol 투여시의 5.4일 보다는 길으나 임상적으로는 치료제로서 사용할만한 약제로 볼 수 있다. Santiago 에서의 연구결과는 Chloramphenicol 5.1일, Ampicillin은 6.7일이었으며 Co-trimoxazole은 7일이었다. 31명의 환자에서 Cefotaxime 2.0 gm/day의 용량으로는 해열이 되지않으므로 1 일 4.0 gm으로 중량하여 평균 3.2일만에 해열이 되었다. 그러나 초기치료부터 1일 4.0 gm 으로 시작한 자료가 없으므로 용량간에 효과를 비교할만한 근거는 없다. 3예의 재발과 5예의 단기보균자수는 Amoxycillin 치료시와 유사하다. 이들은 Co-trinoxazole로 치료하였다. 3예의 장출혈환자는 Cefortaxime의 부작용은 아니며 장티푸스환자에서 통상적으로 볼 수 있는 합병증이라고 사료된다. Cefotaxime 투여시 약간의 피부발진 이외의 부작용을 발견할 수 없었다. Cefotaxime은 가격이 비싸고 경구적 투여라는 단점이 있으나 골수장애를 일으킬 수 있는 Chloramphenicol에 대신해서 장티푸스치료에 사용할 수 있는 약제다.