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이종준(Jong Joon Lee),윤재은(Jae Eun Yun),김동섭(Tong Seop Kim) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6
Operation of a 30㎾ class microturbine was simulated on the basis of component characteristic parameters obtained from performance test. Characteristic parameters, such as turbine inlet temperature, compressor and turbine efficiencies, recuperator effectiveness and generator efficiency, was obtained for a wide operation range using analysis based data reduction of the test result. Component characteristics such as performance maps and characteristic curves were generated using those data. Based on the component characteristics, operation of the microturbine was simulated for various operating condition and compared with measured performance parameters. The data obtained from the test and the simulation program will be used for performance diagnostics study.
이종준(Lee, Jong-Joon),장경호(Jang, Kyung-Ho) 영남대학교 산경연구소 2010 영상저널 Vol.3 No.1
예측불허의 급변하는 경쟁 환경속에서 부가가치 창출의 핵심요소로 인사 정보시스템(e-Human Resource Management)의 가치가 새롭게 부상되고 있으며 정보, 혁신, 그리고 아이디어 창출 등 탁월한 인사자원 정보시스템의 확보가 기업의 성과를 좌우하게 된다. 이러한 현실을 감안해볼 때, 본 연구에서는 경쟁력을 갖춘 인사 정보시스템을 구축을 위해서는 인사자원 정보시스템을 사용자들의 욕구와 기대는 물론 깊은 이해와 연구가 요구되며, 그들이 어떻게 인사자원관리 시스템을 이용하고, 활용하는지를 알아야 한다. 또한 인사자원 관리시스템을 이용하는데 있어서 숙련도, 보상, 품질의 만족도 및 재이용 의도에 어느 정도에 영향을 미치는지를 연구 해보고, 이용자 행태의 효율적인 활용방안의 도출과 향후 인사자원 관리시스템 구축과 활성화의 계기를 만드는데 실무적 시사점을 제공하고자 하였다. The value of e-Human Resource Management is bobed up new in the environment of the fast change and a tough prediction. The insurance of prominent e-Human Resource Management such as information, innovation and idea of creation influences the result of a company. When it considers the actuality, to build e-Human Resource Management with global competitiveness, the user of e-Human Resource Management has to understand and study e-Human Resource Management and to know how they use e-Human Resource Management. In using e-Human Resource Management, we have to study that skill, reward, satisfaction of quality have an effect on an intention of the reuse.
기획B형간염 바이러스의 잠재 감염 ; B형간염 바이러스 잠재 감염과 간세포암
이종준 ( Jong Joon Lee ),권오상 ( Oh Sang Kwon ) 대한소화기학회 2013 대한소화기학회지 Vol.62 No.3
Many studies have suggested that occult HBV infection has a substantial clinical relevance to hepatocellular carcinoma (HCC). Occult HBV infection is an important risk factor for the development of cirrhosis and HCC in patients without HBsAg. As a matter of fact, occult HBV infection is one of the most common causes of crytogenic HCC in endemic areas of HBV. However, there still are controversial issues about the association between occult HBV infection and HCC according to the underlying liver disease. In alcoholic cirrhosis, occult HBV infection may exert synergistic effect on the development of HCC. However, there is insufficient evidence to relate occult HBV infection to hepatocarcinogenesis in non-alcoholic fatty liver disease. In cryptogenic HCC, occult HBV infection may play a direct role in the development of HCC. In order to elucidate the assocciation between occult HBV infection and HCC, underlying liver disease must be specified and larger number of cases must be included in future studies. (Korean J Gastroenterol 2013;62:160-164)
클레부딘 근육병증이 발생한 만성 B형간염 환자들에서 엔테카비어 전환 치료의 효과
이지원 ( Ji Won Lee ),이영준 ( Young Jun Lee ),이종준 ( Jong Joon Lee ),김정호 ( Jung Ho Kim ),정영걸 ( Young Kul Jung ),권오상 ( Oh Sang Kwon ),최덕주 ( Duck Joo Choi ),김연수 ( Yun Soo Kim ),김주현 ( Ju Hyun Kim ) 대한소화기학회 2013 대한소화기학회지 Vol.61 No.1
Background/Aims: Clevudine is a potent antiviral agent against HBV. However, long-term clevudine therapy may cause myopathy. This study was carried out to identify the efficacy of entecavir switching therapy in chronic hepatitis B patients experiencing clevudine-induced myopathy. Methods: One hundred forty six patients with chronic hepatitis B treated with 30 mg of clevudine per day for 73 weeks (range, 36-132 weeks) were enrolled. Among them, clevudine-induced myopathy occurred in 21 patients (14.4%) which was diagnosed if the patients had symptoms related to myopathy with concurrent CK and AST elevation. All the patients who were diagnosed as clevudine-induced myopathy stopped the therapy, and 17 patients (81%) were switched to entecavir 0.5 mg. Results: The patients with clevudine-induced myopathy were switched to entecavir 0.5 mg for median 68 weeks, and all of them showed disappearance of clinical myopathic symptoms and normalization of CK and AST level within median 2.2 months. Eight patients (47%) were HBeAg positive before entecavir treatment, and HBeAg seroconversion was achieved in 2 patients (25%). HBV DNA level was elevated in 3 patients (17.6%) at the time when the patients were diagnosed as myopathy, all of them achieved virological response with entecavir switching therapy. ALT level was elevated in 3 patients (17.6%) before entecavir treatment, all of them showed normalization of ALT level. During entecavir therapy, genotypic resistance to entecavir or virological breakthrough was not noted. Conclusions: In chronic hepatitis B patients experiencing clevudine-induced myopathy, switching to entecavir 0.5 mg per day showed a resolution of myopathy and adequate viral suppression. (Korean J Gastroenterol 2013;61:30-36)
이동민 ( Dong Min Lee ),권오상 ( Oh Sang Kwon ),최윤이 ( Youn-i Choi ),신승각 ( Seung Kak Shin ),장승준 ( Seung Jun Jang ),서현정 ( Hyunjung Seo ),이종준 ( Jong Joon Lee ),최덕주 ( Duck Joo Choi ),김연수 ( Yun Soo Kim ),김주현 ( J 대한소화기학회 2018 대한소화기학회지 Vol.72 No.2
Simple hepatic cysts are common benign liver lesions that usually have no malignant capability. They are generally asymptomatic and are often found incidentally by abdominal imaging procedures. Treatment becomes necessary, however, when huge hepatic cysts cause symptoms and develop complications, such as hemorrhage, adjacent organ damage, and infection. Several therapeutic options have been performed for symptomatic and huge cysts, including the aspiration of cystic fluid, infusion of various sclerosing agents, and surgical intervention. The optimal management of huge hepatic cysts is controversial and each option has its complications and limitations. This paper reports a case of a 66-year-old woman diagnosed with a simple hepatic cyst 2 years earlier, who was referred to hospital due to abdominal pain. The diagnosis was a huge hepatic cyst with symptoms by abdominal imaging studies. During the follow-up period, the huge cysts resolved spontaneously without treatment. (Korean J Gastroenterol 2018;72:86-89)
윤재은(Jae Eun Yun),김정진(Jeong Jin Kim),이종준(Jong Joon Lee),김동섭(Tong Seop Kim) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.11
Performance diagnosis of gas turbines is very important because it provides useful data regarding the operating condition and thus let us know the mal-functioned component. As a first step for a successful diagnosis, correct evaluation of the operation condition (component performance) is important. In this work, the neural network scheme is applied to the prediction of the operation condition of a microturbine. Based on operation data of a 30 ㎾ class microturbine, a program to simulate the engine operation has been set up. With models for performance degradation of each component, performance data for mal-functioned engine (fault data) were generated. Then the neural network was applied to predicting the operation condition (component characteristics such as efficiency and flow capacity of compressor and turbine, and recuperator effectiveness) corresponding to each set of degraded engine performance data.