Azathioprine에 반응을 보인 류마티양 관절염에 의한 경막염(Pachymeningitis)1예

배광봉,이정호,이정찬,곽상혁,강정현,김철희,김현수,김종숙,조덕연,김삼용 충남대학교 의과대학 지역사회의학연구소 1999 충남의대잡지 Vol.26 No.1

Rheumatoid arthritis frequently involves the cervical spine and may lead to neurologic impairement. However, direct involvement of CNS structures by inflammatory cells has been reported infrequently. The prevalence of this complication of rheumatoid arthritis is unknown. Inflammatory CNS involvement in rheumatoid arthritis reportedly occurs in the setting of longstanding, active, erosive articular disease and is accompanied by extracranial and extraspinal nodules and vasculitis. This is diagnosed by radiologic finding of CNS nodules or meningeal thickening and by biopsy or autopsy. Treatment with corticosteroid, cytotoxic agent or surgical decompression is helpful. But the majority of patients die within several months of onset of neurologic symptom. Recently, we experienced a case of pachymeningitis caused by rheumatoid arthritis, which resolved repeatedly with azathioprine treatment.

레이저 표면경화면과 마찰면의 프랙탈 차원 적용에 관한 연구

배춘익,옥철호 慶南專門大學 2001 論文集 Vol.29 No.1

연속파형 Nd:YAG 레이저에 의한 인코넬 600의 용접 공정변수의 연구

배신철,유영태,송성욱,신호준,나기대 朝鮮大學校 機械技術硏究所 2004 機械技術硏究 Vol.7 No.1

The laser welding process is one of the most advanced manufacturing technologies owing to its high speed and deep penetration. Welding characteristics of Inconel 600 Alloy using a continuous wave Nd:YAG laser are experimentally investigated. The major process parameters studied in the present laser welding experiment were position of focus, laser power, travel speed. The gap and offset maintained as small as possible. Optical microscope were used to investigate the microstructures of the welded zone. The follow conclusions can be drawn the laser power and travel speed have a pronounced effect the fusion zone size and shape.

기계구조용 탄소강의 표면개질을 위한 펄스 YAG 레이저의 적용

배춘익,옥철호 慶南專門大學 2000 論文集 Vol.28 No.1

액상 에피탁시법으로 成長시킨 GaAs의 Photoluminescence

裵仁鎬,李哲旭,金仁洙 嶺南大學校 基礎科學硏究所 1992 基礎科學硏究 Vol.12 No.-

Eptaxial layers of undoped GaAs were grown by liquid phase epitaxity(LPE) method on semi-insulating GaAs(100) substrates. GaAs epitaxial layers were characterized by photoluminescence(PL). In the as-grown LPE samples, the emission peaks observed at 1.511, 1.492 and 1.478eV. A PL peak at 5.11eV attributed to the excitons bound to neutral acceptors, and the peaks at 1.492 and 1.478eV were related to carbon and germanium, respectively. The crystal quality of the samples with gallium baking were superior to without baking. Increasing the excitation intensity, the exciton peak varies sensivity, but the peaks due to impurities no significant change. As the anneal temperature is increased, the crystal quality of samples are reduced.

백서에서 신 허혈성 손상에 미치는 칼슘 길항제의 효과

문철웅,정종훈,박천국,이승일,배학연,장경식,김만우,정춘해,홍순표,이병래,김호중 朝鮮大學校 附設 醫學硏究所 1993 The Medical Journal of Chosun University Vol.18 No.1

Renal ischemia is one of the most common causes of acute renal failure. Four factors related to the pathogenesis of acute renal failure are vasoconstriction, decreased glomerular filtration rate, tubular back leak of filtrate, and intratubular obstruction. The cellular response to renal ischemic insults include decreased content of adenosine trihosphate, lipid peroxidation induced membrane degradation, alteration in cellular pH, and calcium or phospholipase induced mitochondrial dysfunction. Much attention has been given to the role of increased cellular calcium as a pathogenetic contributor to cell injury during ischemia. Author studied the protective effects of calcium antagonists on cellular injury during renal ischemia in rat. To investigate the protective role of these agents, author measured the amount of malondialdehyde(MDA) and the enzyme activities of free radical scarvengers-superoxide dismutase(SOD), catalase and glutathione peroxidase from non-pretreated group and calcium antagonists pretreated groups in control, ischemia and reflow subgroups. The results were summerized as follows: 1) The amount of MDA in non-pretreated group was higher in the reflow compared with the control(<p<0.01). But, in all pretreated groups, there was no statistically difference in the amount of MDA. 2) The SOD activity in non-pretreated group was lower in both the ischemia and the reflow compared with the control (P<0.05). But, in both verapamil and trifluoperazine-pretreated groups, there was no statistically difference in the SOD activity. 3) Both catalase and glutathione peroxidase activities in non-pretreated group were lower in both the ischemia and the reflow compared with the control (P<0.05). But in all pretreated groups, there was no statically difference in both catalase and glutathione peroxidase activities. These results suggest that free radical mediated ischemic injury by renal artery clamp in rat can be protected by intraperitoneal pretreatment with calcium antagonists. As trifluoperazine has a protective effect in renal ischemia, the calcium activated calmodulin dependent enzyme may play a role in renal ischemic injury.

種薯의 크기, 切斷 및 Curing處理가 감자의 生育 및 收量에 미치는 影響

李喆浩,文永培 진주산업대학교 1982 論文集 Vol.20 No.-

감자種薯의 Curing處理, 種薯의 크기, 切斷效果 等이 감자의 塊莖形成(收量)에 미치는 影響을 究明하기 위하여 1982年 晋州農林專門大學 構內에서 男爵品種을 供試하여 處理한 結果를 要約한면 다음과 같다. 1. Curing處理는 發芽率과 腐敗 및 健全發芽 個體比率에 影響을 주지 않았다. 2. 어느 處理區에서나 定植期가 빠를수록 增收되는 傾向이었다. 3. 種薯處理에 있어서 全形薯가 切片薯 보다 11% 가량 增收되는 傾向이였다. 4. 種薯의 크기는 30∼50g에서 감자의 생육이 良好하고 收量이 많았다. To Study the effect co curing, cutting and tuber size on the tuber formation of potato, this experiment was carried out with Irish Cobbler at the campus of Jin ju Agricuttural and Forestry Technical Collegs, in 1982. Results gained would be summarized as followings: 1. In curing treatments, growths were similar to non-treatments in uniformity of sprouting and percentage of rotten tuber pieces and of healthy sprouted tuber pieces. 2. In all treatments earlier transplanting resulted higher growth and yield of plant. 3. In whole tuber treatments marketable tuber yields were increased by 11% more than tuber piece treatment. 4. In the 30 gram and 50 gram pots, the growth and yield were increased in comparison with 15 gram. From the results of this study, it concluded that the tuber could be planted heavier than 30 gram for increasing the yield.

중증 재생불량성 빈혈 환자에서 신우신염에 대한 광범위항생제치료 중에 속발한 Saccharomyces cerevisiae 진균감염 1예

김철희,이정호,이정찬,강정현,곽상혁,배광봉,김현수,김종숙,조덕연,김삼용 충남대학교 의과대학 지역사회의학연구소 1999 충남의대잡지 Vol.26 No.1

Most patients with aplastic anemia who do not respond to immunosuppressive treatment or are not candidates for bone marrow transplantation die of infection or bleeding. The neutropenia in acute leukemia, aplastic anemia, or occurring subsequently to chemotherapy and bone marrow transplantation increases susceptibility to infection. In general, the number of infectious episodes correlate with the degree and duration of neutropenia. Global immunosuppression produced by conditioning for bone marrow transplantation or graft-versus-host disease, is associated with unusual bacterial and fungal pathogens, or serious viral and protozoan infections. In addition, repeated treatment with broad-spectrum antibiotics is associated with the emergence of resistant organisms and fungal diseases because of the altered microbial microenvironment of the host. The incidence of invasive fungal infection caused by Saccharomycetes eerevisiae in immunosuppressed patients is very rare, compared with that of infection by candida or aspcrgillus species. Cases of Saccharomycetes cerevisiae fungemia occurring in the course of treatment with broad-spectrum antibiotics are reported in patients with extensive burn or with prosthetic valve endocarditis. We experienced a case of urinary tract infection by Saccharomycetes cerevisiae in a 27-year old female patient with severe aplastic anemia. We report the case with a review of relevant literatures.

태권도 참여정도와 목표지향 및 인지된 자유감의 관계

김진배,장호중,유희철,박순문 한국학교체육학회 2003 한국학교 체육학회지 Vol.13 No.2

본 연구의 목적은 태권도 참여정도와 목표지향 및 인지된 자유감의 관계를 규명하는데 있어 연구대상은 2003년 현재 서울?경기 지역에 거주하며 태권도 수련을 하는 20세이상의 성인 남 228명, 여 272명, 총 500명을 대상으로 하여 목표지향을 측정하기 위해 Duda(1989)와 Nicholls(1989)에 의해서 개발된 TEOSQ를 성창훈이(1995)이 번안 작성한 설문지를 사용하였고 인지된 자유감(perceived freedom)을 측정하기 위해서는 여가진단 도구(Leisure Diagnostic Battery; LDB, Witt & Ellis, 1987) 원형중(1989)이 한국의 실정에 맞게 번안 검증하여 재개발한 여가진단 도구중에서 인지핀 자유감 척도를 사용하였다. 자료분석을 위해 사용된 통계분석은 프로그램인 WNDOWS용 SPSS/PC+ 10.0버전 을 이용하여 빈도분석(Frequency), 신뢰도분석(Reliability analysis), 일원인량분석(one-way ANOVA), 중다회귀블석 (multiple regression analysis)을 실시한 결과 첫째, 인구통제학적 특성에 따른 목표지향, 인지된 자유감의 차이는 부분적으로 나타났다. 둘째, 태권도 수련정도와 목표지향 및 인지된 자유감은 부분적으로 영향을 미치는 것으로 나타났다. 셋째. 태권도 수련자의 목표지향은 인지된 자유감에 영향을 미치는 것으로 나타났다. A study on the relation among the level of practice of Taekwondo, goal orientation and perceived freedom The purpose of this study is to look into the relation among the level of practice of Taekwondo, goal orientation and freedom. The, survey was conducted against 500 subjects, which consists of 272 female adults and 228 male adults above 20 who are practicing Taekwondo in the Seoul and Gyeonggi areas as of 2003. For evaluating the goal orientation, we used two research tools: 1) for evaluating the goal orientation, the questionnaire that Seong Chang-hun(1995) adapted the TEOSQ(Task and Ego Orientation in Sort Questionnaire) which was developed by Duda(1989) and Nicholls(1989), 2) for evaluating the perceived freedom, the perceived freedom scale which is one of the tools that Won Hyeong-jung(1989) adapted, verified and re-deveoped the LDB(Leisure Diagnostic Battery; Witt & Ellis, 1987) in consideration of domestic conditions. For analysis, we performed frequency analysis, reliability analysis, one-way ANOVA, and multiple regression analysis against the data with SPSS/PC+ Version 10.0 for WINDOWS which one of popular statistical analysis programs. Based on the above research procedure, we could conclude as follows: First, difference between the goal orientation and the perceived freedom of Taekwondo practicians was partially shown on the basis of demographic characteristics. Second, the level of practice of Taekwondo partly influenced their goal orientation and perceived freedom. Third, their goal orientation influenced their recognized freedom.

레이저 경화면의 형상특징 해석을 위한 프랙탈 차원의 적용

옥철호,조연상,배춘익,박흥식,전태옥 동아대학교 생산기술연구소 2000 生産技術硏究所硏究論文集 Vol.5 No.2

The determination of surface topography is believed to be extremely important in the areas of contact mechanics, adhesion and friction. In order to describe topography of various frictional surface, the harding test was carried out under different experimental conditions in dry friction. And fractal descriptors was applied to frictional surface of laser modified steel with image processing system. These descriptors to analyze surface structure are fractal dimension. Surface fractal dimension can be determined by sum of intensity difference of surface pixel. Topography of frictional surface can be effectively obtained by fractal dimensions.