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신동건,김성호,권태환,조동규,이재태,이규보,김영욱 대한내과학회 1990 대한내과학회지 Vol.38 No.3
Thirty-four CAPD patients underwent peritoneal scintigraphy utilizing ^(99m)Tc-sulfur colloid. Patients were divided into three groups. Group 1(23 cases) had no complications secondary to CAPD. In 20 of these, radiocolloid was distributed evenly after the end of infusion, and an even distribution was maintained throughout the whole dwelling time. The average recovery rate of radioactivity from the drained dialysate was 70.7%. Three cases in group 1 had a poor radiocolloid recovery rate(21%), and their scintigram and postevacuation images showed multifocal accumulation of radiocolloid after three hours of ambulation. Its clinical significance was undetermined. Group 2(6 cases) had abnormal physical findings presented as external genital swelling(3), abdominal wall swelling(2), or leakage from exit-site(1). Scintigrams were abnormal in two patients with genital swelling and provided localizing information that aided in the management of leakage. In one instance of abdominal wall swelling, peritoneal scintigraphy demonstrated leakage from the previous operation site. Group 3 (5 cases) consisted of patients with recurrent peritonitis. Scintigrams were normal in all patients. No side effects or complications associated with the technique were observed. In conclusion, peritoneal scintigraphy with radiocolloid is a safe, non-invasive method of imaging of the peritoneal cavity and can be used effectively for the assessment of complications related to CAPD procedure.
PCS 회로 및 PWM 방식에 따른 저주파 리플전류 분석
신동건(Dong-gun Shin),김종수(Jong-Soo Kim),강현수(Hyun-Soo Kang),이병국(Byoung-Kuk Lee) 대한전기학회 2007 대한전기학회 학술대회 논문집 Vol.2007 No.10
본 논문에서는 연료전지 시스템에서 발생하는 저주파 리플 전류의 발생 및 전달과정을 분석하고, PCS 회로 및 PWM 방식에 따른 저주파 리플 영향을 비교 분석한다. 전압형 풀브리지 컨버터와 전류형 풀브리지 컨버터에서의 저주파 리플 전류 발생 양상을 시뮬레이션을 통하여 비교 분석한다.