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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)
정신지체인의 신체훈련이 최대하 운동시 혈중 면역글로불린 농도에 미치는 영향
김권섭 ( Kwon Sub Kim ),류호상 ( Ho Sang Ryu ),권영우 ( Young Woo Kwon ) 한국스포츠정책과학원(구 한국스포츠개발원) 2007 체육과학연구 Vol.18 No.3
이 연구는 8주간의 신체훈련이 최대하 운동시 면역글로불린(IgA, IgG, IgM)에 미치는 영향을 알아보기 위한 것이다. 14명의 정신지체인을 대상으로 훈련군(n=7)과 대조군(n=7)으로 나누었다. 평균 지능지수는 45-55(IQ) 범위였다. 훈련프로그램은 트레이드밀과 자전거 에르고메터를 이용한 유산소 운동과 웨이트 트레이닝으로 구성되었다. 분석을 위한 채혈은 훈련전후 안정시와 운동직후에 수행되었으며 최대하 운동은 자전거 에르고메터를 이용하였다. 최대하 운동은 먼저 50 RPM. 2kp에서 시작하여 4분에 70-80%의 목표심박수에 도달하게 한 후 20분간 지속하였다. 결과 IgA는 운동과 회복에 따른 변화가 없었으며, 훈련에 따른 변화 또한 나타나지 않았다, IgG는 변량분석결과 집단과 처치에 따른 상호작용효과가 나타났다. 따라서 훈련군의 훈련 후 증가율이 대조군의 훈련 후 증가율에 비하여 유의하게 높게 나타났다(p=.049). IgM은 변량분석결과 상호작용효과는 나타나지 않았으며 주효과 검증에서도 집단과 처치, 측정시점에 따른 변화는 없었다. 이상의 결과를 요약하면 일회성 운동은 부분적으로 면역글로불린을 증가시키며, 8주간 훈련 또한 부분적으로 면역글로불린을 증가시키는 것으로 나타났다. 보다 명확한 연구의 규명을 위해서는 다른 면역조절 매개변인이나 다른 운동 강도, 체력변화와 면역기능의 관계, 일반인과의 비교연구와 같은 추가적인 연구가 요망된다. The purpose of this study was to investigate the effects of 8 week training program on immunoglobulins(IgA, IgG, IgM). Fourteen mentally retarded men were participated in this study and were assigned to two groups(experimental; n=7 and control groups; n=7). Their intelligent quotients were shown from 45 to 55. Training program consisted of aerobic exercise, weight training. All variables were measured before and after training. Before and after the intervention, each subject took cycle ergometer test under controlled laboratory condition. All exercise sessions took place on a bicycle ergometer (@ 50 RPM), performing 4 minutes of cycling at 2kp to reach targeted heart rate (70-80%/max) then, continued for 20 minutes. Blood samples were obtained before, immediate exercise. IgA did not change with acute and chronic exercise both experimental and control group. There was significant interaction between groups and exercise training in IgG, so blood IgG concentrations increased significantly with submaximal exercise and this exercise induced increase was more higher in exercise training group than control group(p=.049). IgM showed no significant change with training and acute exercise. In conclusion, chronic exercise partially increased blood immunoglobulins concentration (IgG) after submaximal exercise. Further study needed to elucidate the exact mechanism related to chronic exercise and immune function on other immune parameter and different exercise intensity, physical fitness.