http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
소시신경유두안에서 각막보정주사레이저편광측정계를 이용한 망막신경섬유층 분석 및 의의
오민진,정상혁,최규룡,Min Jin Oh,Sang Hyuk Jung,Kyu Ryong Choi 대한안과학회 2007 대한안과학회지 Vol.48 No.2
Purpose: Eyes with small optic disc may be infirm to glaucomatous damage but suitable and objective methods for monitoring glaucomatous optic nerve damage in small optic disc are limited. The purpose of this study was to evaluate the usefulness of the retinal nerve fiber layer (RNFL) analysis using scanning laser polarimetry in patients with small optic disc. Methods: 63 patients with small optic disc were recruited in this study. Eyes with average disc diameter 1.617 mm or less which was 33 percentile by topographic scanning system in our normal population study were enrolled. There were 26 patients with normal tension glaucoma and 37 patients with normal visual fields. Each patient underwent RNFL analysis using GDx VCC. Measurements of axial length, intraocular pressure, refractive error, disc diameter and cup/disc ratio were fulfilled. Findings were compared with independent t-test between 2 groups. GDx VCC parameters were analyzed with multiple logistic regression analysis. Results: No differences in age, axial length, intraocular pressure, refractive error and disc diameter were apparent between the two groups. However, significant differences were detected in GDx VCC parameters including TSNIT average, Superior average, TSNIT standard deviation, NFI, Superior ratio, Inferior ratio, Sup/nasal, Maximum modualation, Superior maximum and Normalized superior area (p<0.001). The RNFL damage of superior area was prominent. Conclusions: In the patients with small optic disc, it is hard to detect the pathologic glaucomatous change by their disc morphologies. Therefore, RNFL analysis could be useful for a glaucoma screening of the patients with small optic disc.
Optimum design of roll forming process of slide rail using design of experiments
오민진,김낙수 대한기계학회 2008 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.22 No.8
In the design of the roll forming process, design errors can be determined in advance by using an FE simulation tool such as SHAPE-RF. In the case of a product such as a slide rail having a complicated shape and requiring highprecision forming, a standard is necessary for quantitatively evaluating the quality of the formed shape. In the analysis of the roll forming process of a slide rail, the pass having the largest deformation is designated as the target pass and the positions and shapes of the rolls are set as design variables. A minimum number of simulations was performed by using the table of orthogonal arrays. A cost function was obtained from the results by using the design of experiments such as the response surface method and it was minimized for satisfying the design constraints. By improving the design of the target pass, the shape of the final product approaches that intended by the designer.
유리체강내 트리암시놀론 주사 후 안압 상승에 대한 임상양상 분석
오민진,최규룡,이수영,이정희,Min Jin Oh,Kyu Ryong Choi,Soo Young Lee,Jeong Hee Lee 대한안과학회 2006 대한안과학회지 Vol.47 No.10
Purpose: To evaluate the incidence of intraocular pressure (IOP) elevation and the associated factors following intravitreal triamcinolone acetonide injection. Methods: A retrospective observational case study was performed in 143 eyes of 143 patients who received intravitreal injection of 4 mg triamcinlone acetonide and who had a minimum follow-up of 6 months. The eyes were examined before and periodically after the intravitreal injection of triamcinolone acetonide. A significant IOP elevation was defined as IOP>21 mmHg or a rise of more than 5 mmHg in patient with IOP over 21 mmHg at their first examination. Results: Mean IOP increased from 16.1±3.2 mmHg preoperatively to 23.3±7.7 mmHg postoperatively. A significant IOP elevation was observed in 68 eyes (47.6%). IOP elevation was observed the day after injection and decreased to the baseline value after 6 months following injection. The time to reach maximum IOP was 3 months in 24.5%, 2 months in 20.3% and 1 week in 12.6%. Factors associated with IOP elevation were younger age, high IOP before injection, myopia, and unaccompanying anterior chamber paracentesis. Most cases of IOP elevation following intravitreal triamcinolone acetonide injection were controlled by antiglaucoma medication. However, in 4 eyes, filtering surgery or valve implantation was required. Conclusions: IOP elevation after intravitreal triamcinolone injection is common and may take an extended period of time to manifest. Cautious monitoring of IOP is recommended after intravitreal triamcinolone injection especially in younger patients and those with high IOP before injection, myopia, and unaccompanying anterior chamber paracentesis.
자연과학편 : 운동과 황기 추출물 투여가 혈중 에너지기질 및 항산화 방어기전에 미치는 영향
민진아(JinAhMin),이수천(SooChunLee) 한국체육학회 2007 한국체육학회지 Vol.46 No.4
동양 문화권에서 주로 이용되는 보조제(ergogenic aids)인 한약재의 연구들 중 황기는 콩과에 속하는 초본 식물로 구성 성분인 polysaccharide와 saponin등이 항고혈압성분, 면역반응, 항염, 항산화 등의 생리활성을 가지는 것으로 보고 되어왔다. 본 연구에서는 Sprague Dawely계 수컷 쥐 28마리를 대상으로 운동 시 황기 추출물의 투여가 운동 중 에너지 대사와 항산화 체계에 미치는 영향에 관하여 연구하였다. 운동 시 황기추출물의 투여는 혈중 글루코스와 혈장 유리지방산의 농도를 증가시켰으나 혈중 중성지방의 농도는 유의하게 감소했다. 항산화 방어체계에서는 운동 시 황기추출물의 투여는 대퇴사두근의 과산화 지표인 MDA 농도를 감소시키고, 항산화 효소 활성도를 증가 시키는 경향을 나타냈으나 유의성은 나타나지 않았다. 따라서 운동 시 황기 추출물의 투여는 운동 중 에너지 대사에 영향을 미치며, 항산화 방어기전에 균형을 유지하는데 긍정적인 효과를 나타냈다. The purpose of this study was to investigate the effects of antioxidant system and improvement of blood lipids when abstraction of Astragalus membranaceus was orally injected to 28 rats. 28 male SD rats were divided into four group, control(CON), exercise group with only saline(EXE), group with only abstraction of Astragalus membranaceus injection(AS) and exercise group with abstraction of Astragalus membranaceus injection(ASE). All rats were trained on a motor driven treadmill. After exercise test, blood was collected for the measurement of glucose, TG, FFA, SOD, MDA The blood glucose and FFA concentration was significantly higher (p<.05) in the exercise group (ASE) compared with the sedentary(AS). whereas, the blood TG concentration was significantly lower (p<.05) in the exercise group (EXE, ASE) compared with the sedentary(CON, AS). MDA in quadri is lower in the exercise group and SOD in quadri is higher in the exercise group but these are no significant differences in statistics. These results suggested that the injection of Astragalus membranaceus abstraction in exercise was effected to blood energy metabolism and antioxidants system positively.