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Youn Doo Kim,Gae Ho Lee,Hyung Seung Kim,Dong Soo Kim,Kwang Kyu Park Korean Chemical Society 1994 Bulletin of the Korean Chemical Society Vol.15 No.9
A simple and rapid sample pretreatment process necessary for determination of metal oxides in water was proposed. Samples were injected into the continuous-flow tube installed inside the microwave oven and the treated samples were cooled before entered to the Ion Chromatography (IC) or Inductively Coupled Plasma (ICP). By coupling this microwave digestion system with IC or ICP, a fully automatic analytical procedures may be easily established. In this study, two different types of digestion methods were considered; the open tubing method (OTM) and the restraint tubing method (RTM). The RTM was proved to be 3 times faster in digestion period and 10 times higher in detection range than the OTM. Validation of proposed sample digestion system was carried out by using an ICP. The results showed that both of continuous-flow methods, the OTM and the RTM were comparable in accuracies with the conventional batch-type vessel digestion method.
김윤기(Kim Youn-Ki),이계영(Lee Gae-Young),김규식(Kim Gyu-Sik) 한국정보과학회 1999 한국정보과학회 학술발표논문집 Vol.26 No.1A
Intrusion detection과 network security는 컴퓨터 분야에서 점점 더 중요해지고 있다. 이로 인해 계속해서 침입탐지 시스템이 개발되고 있다. 네트웍 침입탐지 시스템에는 “중앙 집중식”과 “완전 분산형”이 제안되었다. “중앙 집중식”은 중안 제어 시스템에 과중한 부하를 유발시킬 수 있고 “완전 분산형”은 모든 호스트가 침입탐지 시스템을 수행시켜야하는 제한과 이로 인한 부하를 유발시킨다. 이런 단점을 해결하기 위한 방안으로써 각 랜마다 하나의 침입탐지 시스템을 수행시키는 방식의 분산 침입탐지 시스템 ENSM(Expanded Network Security Monitor)을 제안한다. 랜을 모니터하기 위해 설계된 NSM(Network Security Monitor)를 확장함으로써 제안하는 시스템을 설계한다.
간암 절제술 후 후기 합병증으로 발생한 기관지담관루의 치료 1 예
김영수,이진우,박현신,김인한,이돈행,김범수,김형길,문계혁,김승연,조진경 대한소화기내시경학회 2001 Clinical Endoscopy Vol.23 No.2
A bronchobiliary fistula (BBF), which is defined by an abnormal communication between the biliary system and the bronchial tree, is an uncommon complication after hemihe-patectomy, trauma, hydatid disease, choledocholithiasis, and other causes of biliary obstruction, BBF are rare complication of hepatic resection that can present from days to years after operation. Management of fistula is often very difficult and can be associated with high morbidity and mortality rates. Early recognition and proper management are essential to avoid a fatal outcome. Endoscopic retrograde cholangiopancreatography (ERCP) and percutaneous trans-hepatic cholangiography (PTC) are the diagnostic studies of choice and offer the possibility of therapeutic intervention. Although large series in the literature emphasize the surgical management of BBF, the reoperative procedures tend to be complicated, with a significant morbidity and mortality. Nonsurgical intervention via ERCP or PTC are more recently notably successful when resolution of a distal biliary obstruction is accomplished. Only after aggressive attempts at nonoperative, interventional techniques have failed should operative approaches be entertained. We are reporting a case of BBF secondary to hepatic resection of hepatocellular carcinoma which was managed by surgical operation.