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수직형 터널 환기구 점검을 위한 진단기술자 안전중심 진단장비 개발 및 시범적용
류호상 ( Ryu Ho Sang ),정현준 ( Jung Hyunjun ),김재범 ( Kim Jae Bum ),지기환 ( Jee Kee Hwen ) 한국구조물진단유지관리공학회 2019 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.23 No.2
In this paper, the on-site applicability review was carried out on the actual site so that the inspection equipment for inspection of tunnel vertical-type vent can be developed to promote the safety of the inspection engineer and improve the inspection cost.
Carditis 와 역류성 식도염 및 Helicobacter pylori 감염과의 관계
이상우 ( Sang Woo Lee ),박동규 ( Dong Kyu Park ),김창덕 ( Chang Duck Kim ),진윤태 ( Yoon Tae Jeen ),최재현 ( Jai Hyun Choi ),엄순호 ( Soon Ho Um ),류호상 ( Ho Sang Ryu ),전훈재 ( Hoon Jai Chun ),송치욱 ( Chi Wook song ),현진해 ( J 대한소화기학회 2001 대한소화기학회지 Vol.38 No.5
Background/Aims: The aim of this study was to investigate the relationship among squamocolumnar junctional inflammation (carditis), reflux esophagitis, and Helicobacter pylori (H. pylori) infection. Methods: Gastrofiberscopy was performed for 221 patients with various gastrointestinal symptoms. Endoscopic biopsies were performed at the distal esophagus of 3 cm above squamocolumnar junction (Z-line), Z-line, antrum, and body. Biopsy specimens were assessed for density of neutrophils and mononuclear cells (each scored 0-3), and for the presence of H. pylori. A carditis score above 2 was considered positive. Results: Among the 221 patients, 107 cases were defined as reflux esophagitis (RE) group and remaining 114 cases were defined as control group. The prevalence of carditis was significantly different between the two groups (RE, 35.5%; controls, 54.4%, p=0.005). The prevalence of H. pylori infection was also different significantly between the two groups (RE, 40.2%; controls, 57.9%, p=0.009). The relationship between H. pylori infection and carditis (p=0.001) or intestinal metaplasia (p=0.033) was statistically significant. Conclusions: Carditis and H. pylori infection can not be a marker of reflux esophagitis. H. pylori infection is associated with carditis and intestinal metaplasia at squamocolumnar junction. (Korean J Gastroenterol 2001;38:319-324)
내과영역의 각종 감염환자에 대한 Ceftezole 의 치료효과
이병호(Byung Ho Lee),이윤석(Yun Suk Lee),류호상(Ho Sang Ryu),현진해(Jin Hai Hyun) 대한내과학회 1987 대한내과학회지 Vol.32 No.5
N/A Ceftezole, a demethyl-cefazolin, is a new cephalosporin antibiotics. It is a broad-spectrum antibiotics, active in vitro against many species of gram-positive and gram-negative bacteria, especially E. coli, Klebsiella spp. and Proteus mirabilis. It is highly stable to peni-cillinase-type β-lactamase of Staphylococcus and minimally hydrolyzed by penicillinase-type β-lactamase which was mediated by conjugative R-plasmids of gram-negative rods. The bactericidal activity of ceftezole was found to be nearly the same as that of cefazolin. We studied the clinical effects of ceftezole on 27 cases of various infection in internal medicine and performed sensitivity test for 205 organisms, isolated from patients who admitted to Korea University, Hae Wha Haspital. The results are followings. 1) The most gram-positive cocci other than Enter-ococcus revealed sensitivity pattern to ceftezole, 75.0 to 100.0% and gram-negative bacilli especially E. coli, Klebsiella spp., Salmonella spp., Shigella spp. are highly susceptable to ceftezole (81.6%, 81.3%, 100.0%, 100.0% sensitivity respectively) by disk diffusion method, 2) The overall effieacy of ceftezole on 27 cases of various infection in internal medicine reveals relatively good (77.8/o). 3) There was no remarkable side effects and no other untoward effects was observed in hematogenous and hepato-renal function.
엄순호 ( Soon Ho Um ),류호상 ( Ho Sang Ryu ),박미라 ( Mi Ra Park ),이재원 ( Jea Won Lee ),진윤태 ( Yoon Tae Jeen ),전훈재 ( Hoon Jae Chun ),송치욱 ( Chi Wook song ),이상우 ( Sang Woo Lee ),김창덕 ( Chang Duck Kim ),현진해 ( Jin Ha 대한소화기학회 1997 대한소화기학회지 Vol.29 No.6
Background/Aims: Well designed staging system of hepatocellular carcinoma(HCC) is needed for comparative therapeutic studies regarding HCC to be of value. The aim of study is to reevaluate prognostic factors affecting natural history of HCC and to devise a staging system according to prognostic index estimated mathematically Methods: One hundred eighty patients with HCC were analyzed retrospectively. All patients received only conservative treatments. Univariate and multivariate analysis were performed using clinical, biochemical and imaging data obtained at diagnosis. Results: The overall acturial survival rate at 1, 3, 6, 12, 24 months were 74%, 33%, 11%, 7%, 5%, respectively. For significant prognostic variables in the univariate analysis, multivariate survival analysis disclosed that tumor size(p=0.0039), ascites(p=0.0190), total serum bilirubin(p=0.001) were independent prognostic factors. Considering the contribution of each of these factors to prediction of survial, a pronostic index(PI) was defined as a following regression equation. PI=EXP(tumor size×0.1904+ascites×0.4114+Bilirubin×0.0504). According to PI, a new staging system was devised allowing division of patients into three groups with significantly different survival rates(p<0.01). Conclusions: The new staging system for HCC according to PI would be useful for the staratification of HCC patients in the comparative evaluation of various therapeutic modalities.(Korean J Gastroenterol 1997;29:786-796)
현진해(Jin Hai Hyun),류호상(Ho Sang Ryu),이중건(Choong Keun Lee),김창덕(Chang Duck Kim),박균철(Kyun Chul Park),조인식(In Sik Cho),김의경(Eui Kyeong Kim),김남성(Nam Seong Kim),이재동(Jae Dong Lee) 대한소화기학회 1988 대한소화기학회지 Vol.20 No.3
It is common to define double primary cancer as the case of primary malignant tumors of different histologic site origins in each other. Etiology of double primary cacer is not known exactly but there are many contributing factors and theories about double primary cancer development. Owing to advancement of diagnostic procedure, reported cases of double primary malignant tumors have been increased in number. But occurance rate of multiple prirnary malignant tumors is relatively rare. We report the two cases, which we have confirmed double promary malignant tumors of different site origins such as esophageal squamous cell carcinoma and stomach adenocarcinoma with gastric fiberoptic endoscopic biopsy.