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박영배,이영우,오동진,고창순,서정돈,서봉관,오병회 대한내과학회 1986 대한내과학회지 Vol.31 No.5
To assess the change in left ventricular function after hospital discharge, 57 patients with acute myocardial infarction were studied before discharge and 26 of them after discharge as well with either or both of treadmill test and radionuclide ventriculography(RNV). Follow-up study patients were 2g men with mean age of 53.1. Their infarct locations were anterior in 16 cases, inferior in 8 cases and anterior and inferior in 2 cases; 21 cases were in Killip class I, 3 cases in II, and 2 cases in III. Follow-up study was performed 2~19 months(mean 7.3 months) after acute myocardial infarction. The results were as follows: 1) Predischarge study showed that a relationship is present between regional wall motion abnormality, Killip class, peak serum CK and left ventricular ejection fraction(LVEF). 2) Predischarge and follow-up treadmill tests showed no significant change. 3) Follow-up RNV showed worsening of regional wall motion only in 1 case: Other cases showed either improvement or no change in regional wall motion. 4) Overall patients showed a significant increase in LVEF on follow-up. By location, only anterior infarction showed a significant increase in LVEF. 5) Killip class I patients showed a significant increase in LVEF on follow-up. 6) Most cases in this study were uncomplicated myocardial infarction and they showed improved LV function(suggested by RNV) on follow-up. Treadmill test also seems to be valuable for evaluationg improvement in exercise capacity on follow-up. So it is recomended that treadmill test or RNV be performed after discharge to evaluate change in LV function objectively.
박영배,이승일,고현진,송미영,김상균 대한한의진단학회 2010 大韓韓醫診斷學會誌 Vol.14 No.2
Objectives In this study, diagnosis of an ontology-based electronic chart system works by presenting a model electronic chart system is contributing to the standardization and objectification in Oriental Medicine field. Methods The clinic is currently used in the electronic chart, and use surveys and research utilization was diagnosed. In addition, the symptoms with medicines, prescriptions, patterns ontology data, information, relationships between the association was derived. electronic chart the flow of information from the input data stream was defined using the ontology. Medicines, prescriptions, patterns diagnosis ontology, using the process model presented in the electronic chart. Results This study show that interoperable model within the diagnostic capabilities of the electronic chart system in Oriental Medicine and represent diagnosis process in the system with symptoms. Conclusions Diagnosed with symptoms of ontology integration with electronic chart to study the model was placed goal. Diagnosis and prescription due to strong associative connection implies an ontology can be seen even more important. Diagnostic elements will be added to enhance the diagnostic capabilities in the electronic chart can be varied and objective diagnostic model can be presented. This study extends the range for the CDSS, and new areas of research can be presented
MMIC 응용을 위한 초소형 능동형 90° 전력 결합기
박영배,윤영 한국전자파학회 2007 한국전자파학회논문지 Vol.18 No.9
본 논문에서는 MMIC 응용을 위한 초소형화된 능동형 90° 전력 결합기를 제안한다. 기존의 수동형 90° 전력 결합기는 매우 큰 크기 때문에 MMIC 상에 집적되어질 수가 없다. 따라서 초소형화된 90° 전력 결합기는 고집적된 MMIC의 개발을 위해 요구되어진다. 본 논문을 위해서 InGaP/GaAs HBT를 이용한 초소형화된 능동형 90° 전력 결합기는 고집적된 MMIC 응용을 위해 GaAs 기판 상에 제작하였다. 제작된 능동형 90° 전력 결합기의 크기는 2.42×1.05 mm이며, 이는 기존의 수동형 90° 전력 결합기의 약 2.2 % 정도의 크기였다. 제작된 능동형 90° 전력 결합기는 2.4 GHz에서 기존의 수동형 90° 전력 결합기보다 약 10 dB의 이득 특성과 -92.6°의 양호한 위상차 결합 특성을 보였다. 초소형화된 능동형 90° 전력 결합기는 기존의 수동형 90° 전력 결합기들에 비해서 좋은 RF 성능을 나타내었다. 본 논문은 능동형 90° 전력 결합기에 대한 최초의 보고이다.
Candida Parapsilosis 에 의한 인공판막심내막염 1 예
박영배,이영우,김재중,송재관,최윤식,오병희,서정돈,남현석 대한내과학회 1987 대한내과학회지 Vol.32 No.6
Prosthetic valve endocarditis is increasing in frequency with widespread use of valve replacement in Korea. Fungal endocarditis is very rare but demands more careful attention, berause it causes higher mortality and needs more extensive treatment including surgery. We report a case of prosthetic valve endocarditis caused by Candida parapsilosis, who had underwent aortic valve replacement about 2 months before. Nine pairs of blood cultures, urine culture and tissue culture from aortic valve vegetation all yielded Candida parapsilosis.