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한.양방 병원 외래환자의 한.양약 동시복용 경험 실태조사
오문수,강재승,황영일,정희재,김윤경,Oh, Moon-Su,Kang, Jae-Seung,Hwang, Young-Il,Jung, Hee-Jae,Kim, Yun-Kyung 대한한의학방제학회 2010 大韓韓醫學方劑學會誌 Vol.18 No.2
The purpose of this survey was to find out the actual condition and the problems of combined medications of patients who have general diseases, respiratory diseases. The objects of this survey were 1,769 outpatients who visited 8 Oriental hospitals and Seoul national university hospital respiratory clinics. SPSS program was used to analyze the survey data. The mean age of patients was lower in oriental hospital than in western hospital. The monthly family incomes were higher in oriental hospital patients than in western hospital patients. The condition of patients was better in oriental hospital than western hospital and self-assessed health status was more positive in oriental hospital patients than in western hospital patients. The percentage of having experienced of treated in oriental and western hospital at the same time was 21% in western hospital patients and 45% in oriental hospital patients. In patients with respiratory diseases, the percentage of having taken combined medications was 40.2% in oriental hospital and 13.7% in western hospital. In patients with non-respiratory diseases, the percentage of having taken combined medications was 27.4% in oriental hospital and 8.3% in western hospital. And in the patients with two different diseases, the percentage of having taken combined medications was 27.9% in oriental hospital and 6.3% in western hospital. The percentage of having experienced synergistic effects was 33.0% in western hospital and 56.3% in oriental hospital. The percentage of side effects was 12.6% in western hospital and 12.2% in oriental hospital. This survey was meaningful in that it reported the actual condition of combined medications of patients who have general diseases, respiratory diseases. For the deep study on synergistic and side effects of combined medications, it is necessary to collect many cases of synergistic and side effects by doctors in western and oriental hospitals.
저산란 반사경을 이용한 링레이저 자이로의 주파수 잠긴 개선
조민식,심규민,권용율,정태호,오문수,이수상,조현주,손승현,문건,이재철,Jo, Min-Sik,Shim, Kyu-Min,Kwon, Yong-Yool,Chung, Tae-Ho,Oh, Moon-Su,Lee, Soo-Sang,Cho, Hyun-Ju,Son, Seong-Hyun,Moon, Gun,Lee, Jae-Chul 한국광학회 2002 한국광학회지 Vol.13 No.4
링레이저 자이로의 주파수 잠김을 개선하기 위하여, 링레이저 공진기에 저산란 반사경을 적용하는 연구가 수행되었다. 초정밀 연마기술을 통해 표면 거칠기 1Å rms 이하의 반사경 기판을 가공하였으며, 가공된 기판에 이온빔 스퍼터링 코팅방식을 이용하여 산란율 300ppm 이하의 반사경을 제작하였다. 제작된 저산란 반사경을 링레이저 자이로에 적용한 결과, 자이로의 잠김 주파수를 약 0.1 deg/sec 이하로 개선할 수 있었다. For the improvement of the lock-in frequency of a ring laser gyro, a low-scattering mirror was employed in the laser resonator. A super-polishing technique produced fine mirror substrates of less than 1-A-rms-roughness. The mirror coating using an ionbeam sputtering technique reduced the scattering loss to less than 30 ppm. As a result of the mirror scattering enhancement of the ring laser, the lock-in frequency of the gyro was improved up to about 0.1 deg/sec.
위상측정 간섭계를 이용한 수십 Å급 및 sub Å급 반사경 기판 조도 평가
조민식(Min-Sik Jo),정태호(Tae-Ho Chung),오문수(Moon-Su Oh) 한국광학회 1999 한국광학회지 Vol.10 No.4
위상측정 간섭계(phase-measuring interferometer)를 이용한 표면조도(surface roughness) RMS값 수십 Å급과 sub Å급 반사경 기판의 조도 평가 특성이 조사되었다. 위상측정 간섭계의 조도 측정오차에 대한 위상 및 강도 데이터 평균의 영향이 조사되었으며, 이를 근거로 조도 측정오차를 최소화하는 최적의 위상 평균횟수와 강도 평균횟수가 도출되었다. 수십 Å급 샘플의 경우, 조도 측정값은 데이터 평균의 영향을 적게 받은 반면, sub Å급 반사경 기판의 경우는 위상 및 강도 평균횟수가 증가할수록 표면조도 측정오차가 뚜렷이 감소하였다. sub Å급 반사경 기판 조도 측정시에 위상 평균 30회, 강도 평균 20회에서 안정적이고, 신호 대 잡음비가 최대인 조도 측정값을 얻을 수 있었다. 이때의 조도 측정값은 광학적 heterodyne 간섭계에 의한 조도 측정결과와도 잘 일치하였다. 최적 데이터 평균횟수에서 표면조도 측정 반복도 역시 0.01Å이하의 양호한 측정오차를 보였다. We investigated the characteristics of surface roughness evaluation using phase-measuring interferometer for a few ten Å and sub Å-rough substrates. The influence of phase averaging and intensity averaging on the roughness measurement by phase-measuring interferometer was investigated and the optimal number of phase and intensity averaging for the least measurement error was searched. For a few ten Å-rough sample, roughness value did not depend so much on the data averaging. Whereas, measurement error for sub Å-rough sample was significantly improved as the number of phase and intensity averaging increased. At the phase averaging of 30 and the intensity averaging of 20, roughness value that measurement error was minimized was obtained, and it was in good agreement with that by optical heterodyne interferometer. Roughness measurement at the optimal data averaging showed also good repeatability error less than 0.01 Å.