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이상목,최석화,이현하,이원창,Lee Sang-mog,Choi Seok-hwa,Lee Hyun-ha,Lee Won-chang 대한수의사회 1992 대한수의사회지 Vol.28 No.6
This study was performed to investigate the infestation rate of heartworm(Dirofilaria immitis) in the peripheral blood of the dog being raised in Korea. Blood samples were obtained between 17 : 00 and 20 : 00 from June to August, 1991. Heartworm was exami
고식적인 라섹과 웨이브프론트 방식을 이용한 라섹 전후의 고위수차의 변화 비교
이상목,이민정,김미금,위원량,이진학,Sang Mok Lee,Min Joung Lee,Mee Kum Kim,Won Ryang Wee,Jin Hak Lee 대한안과학회 2007 대한안과학회지 Vol.48 No.8
Purpose: To evaluate the postoperative higher-order aberrations (HOAs) and factors affecting postoperative changes in HOAs in eyes that underwent wavefront-guided LASEK (laser-assisted subepithelial keratectomy), compared with the eyes that underwent conventional LASEK. Methods: We reviewed the medical records of 221 patients who had undergone LASEK or wavefront guided LASEK with VISX WaveScan and VISX Star S4 eximer laser by a single surgeon (427 total eye operations). We matched 29 eyes of the LASEK and the wavefront LASEK groups (58 eyes total) according to the guideline: preoperative refractive power differences must be within 1 diopter and preoperative root-mean-square (RMS) of total HOAs differences must be within 0.01 ?m. Preoperative wavefront aberrations and two-months postoperative wavefront aberrations and associated factors were compared and analyzed. Results: Postoperative total HOAs, comas, and spherical aberrations increased significantly from 0.36±0.10 ?m to 0.49±0.16 ?m (p=.001), 0.21±0.09 ?m to 0.31±0.14 ?m (p=.003), and 0.03±0.10 ?m to 0.10±0.20 ?m (p=.043), respectively, in the conventional LASEK group. In the wavefront LASEK group, postoperative HOAs, comas, and spherical aberrations significantly increased from 0.36±0.10 μm to 0.46±0.14 μm (p=.004), 0.18±0.10 ?m to 0.29±0.14 ?m (p=.002), and 0.09±0.14 ?m to 0.19±0.14 ?m (p=.006), respectively. There were no significant differences in HOAs between the two groups. A strong negative correlation between preoperative total HOAs and a multiple of increase in total HOAs postoperatively was found, with the negative correlation being stronger in the wavefront-guided LASEK group (Pearson’s correlation coefficient =-0.697, p<.001) than in the LASEK group (Pearson’s correlation coefficient =-0.632, p<.001). Conclusions: There were no significant decreases in HOAs in the eyes that underwent wavefront-guided LASEK compared with the matched control eyes of patients that underwent conventional LASEK. Analyzing the tendency of a multiple of increase in total HOAs according to the preoperative HOAs, it suggests that the wavefront-guided LASEK may be more effective in suppressing an increase in total HOAs in the eyes with higher preoperative HOAs.
이상목,황정선,Lee, Sangmok,Hwang, Jungsun 한국군사과학기술학회 2013 한국군사과학기술학회지 Vol.16 No.6
Transmission is a core component of helicopter to transmit power from engine to rotor and must have a endurance to be able to show satisfactorily its performance required during its life time. When developing a new helicopter, both military and civil airworthiness authorities require a tie-down test to verify its endurance. Procedure for transmission endurance test is described in FAR part 29 or US military specification but its details are more or less ambiguous. In this paper, we have proposed a proper procedure for transmission endurance test by giving KUH transmission endurance test example including determination of applicable torque, load and test profile.
희망칼럼 - 국제 기후 변화 대책은 새로운 성장의 기회
이상목,Lee, Sang-Mok 국가핵융합연구소 2009 핵융합뉴스레터 Vol.42 No.-
매년 여름을 앞두고 농어민들은 물론 여름휴가를 준비하는 도시민들의 최대 관심사였던 장마예보가 48년 만에 역사 속으로 사라진다는 뉴스가 있었다. 장마전선의 영향을 받는 기간 동안 집중 호우가 있었던 예전과 달리 장마전선 형성전이나 소멸 후에도 강한 비가 수시로 내리는 등 우리나라의 여름철 강수 특성이 많이 변해 장마를 예측한다는 것이 의미가 없다는 이유이다. 장마예보가 반가운 뉴스는 아니었지만 기후변화로 인한 현상이라 생각하니 씁쓸해진다.
셀레나이트로 유도되는 백내장에서 선삼 성분에 따른 백내장 억제효과의 비교 분석
이상목,정문선,정진호,김미금,위원량,박정일,이진학,Sang Mok Lee,MD,Jung Moon Sun,MD,Jin Ho Jeong,MD,Mee Kum Kim,MD,Won Ryang Wee,MD,Jeong Hill Park,PhD,Jin Hak Lee,MD 대한안과학회 2010 대한안과학회지 Vol.51 No.5
Purpose: To compare the protective effects of saponin and non-saponin Sun-ginseng extract fractions in a selenite-induced rat cataract model. Methods: A total of 101 Sprague-Dawley rat pups were divided into four groups by treatment: Sun-ginseng, saponin fraction, non-saponin fraction, and control. For induction of cataracts, sodium selenite 15 nmol/g was injected subcutaneously in 13 day-old rat pups. Sun-ginseng extract 100 μg/g (Group I, Ginseng Science, Seoul, Korea), saponin fraction 100 μg/g (Group II), non-saponin fraction 100 μg/g (Group III), and phosphate buffered saline (Control group) were injected intraperitoneally every two days for a total of seven injections. The rats were sacrified and their lenses were dissected and photographed at day 7 and 14, and the cataracts were graded according to the ratio of the cataract area to the total lens area. The blind method was used for the evaluation of the cataract area. Results: At day 14, cataract formation rates (CFR) were 33.3% in group I, 76.4% in group II, 41.2% in group III, and 77.7% in the control group. The mean cataract area (MCA) was 13.4±20.8% in group I, 14.4±11.7% in group II, 5.7±7.7% in group III, and 15.8±12.1% in the control group. Group III showed statistically significant results compared with those of control group (CFR p=0.001, MCA p=0.001). We observed significantly lower incidence and smaller mean cataract area in Group I and Group III at day 7 compared with the control group (Group I, CFR p=0.018; Group III, CFR p=0.032, MCA p=0.005). Conclusions: The protective effects of Sun-ginseng extract are caused by the components in the non-saponin fraction, not by those in the saponin fraction, in a selenite-induced cataract rat model. J Korean Ophthalmol Soc 2010;51(5):733-739