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이소라(Sora Yi),이우진(Woo Jin Lee),이영준(YoungJoon Rhee) 유기성자원학회 2018 유기물자원화 Vol.26 No.1
최근 지자체에서는 매립지 사용에 관한 갈등과 사용종료 시점을 앞두고 논란이 이는 사례가 늘고 있으며, 대체 매립지 마련이나 기존 매립지의 수명연장 합의를 이끄는데 난항을 겪고 있다. 이에 본 연구는 매립지 정비를 통하여 기 매립된 폐기물과 향후 매립될 폐기물의 순환이용 가능량을 산정하고, 매립지의 용량을 확보하도록 기여하는 데에 그 목적이 있다. 이를 위해 부피증가율, 중량비, 겉보기밀도를 주요 파라미터로 결정하고, 기존 사업 사례를 통해 그 값을 산정하였다. 기존 사업 지역(아산시, 예천군, 안동시)에서의 부피증가율의 평균값은 1.42로 산정되었다. 중량비의 경우 세 지역의 토사류 평균값은 45.6%로 산정되었고, 가연성 폐기물과 불연성 폐기물의 비율은 「전국 폐기물 발생 및 처리 현황」 통계자료를 활용할 수 있도록 산정 방법론을 제시하였다. 겉보기밀도는 두 지역 평균값을 이용하였으며 가연성, 불연성, 토사류별로 각각 0.35톤/㎥, 1.40톤/㎥, 1.58톤/㎥으로 산정되었다. 본 연구에서 산정된 주요 파라미터들과 제시된 방법론을 통해 사례 연구로 청주매립지의 순환이용 가능량을 분석하였다. 기 매립된 폐기물을 정비하여 순환이용함으로써 새로 확보될 매립용량은 기존 매립지 용량 대비 45%에 해당되었다. 또한 매년 반입되는 물량을 선별하여 가연성분은 에너지화하고, 소각재, 불연성 및 토사류만 재매립할 경우 청주시의 매립지 사용연한이 20년 증가되는 것으로 분석되었다. 향후 본 연구에서 구축한 방법론은 특정 매립지를 선정하여 순환이용 하고자 할 때 기초자료로 활용될 수 있을 것으로 기대된다. As many local governments have faced increasing conflicts on landfill use and the time of end use, it is difficult to provide an alternative landfill or conclude a consensus of lifespan extension for the existing landfill site. Therefore, the purpose of this study is to contribute improving of the landfill capacity by calculating the resource recovery potentials of landfilled waste previously and in the future by landfill mining. For this, rate of volume increase, weight ratio, and apparent density were adopted as major parameters and their values were calculated through previous cases. The rate of volume increase was calculated to 1.42 by averaging previous cases of three areas. The average weight ratio of soil matter was 45.6% by calculating for the three areas. For the combustible waste and incombustible waste, statistical data can be used. The apparent densities were divided by combustible waste, incombustible waste, and soil matter using an average of two areas value, i.e., 0.35ton/㎥, 1.40ton/㎥ and 1.58ton/㎥. We analyzed the resource recovery potential of Cheongju landfill by using the estimated parameters. The additional landfill capacity was 45% of the existing landfill capacity by recovering landfilled waste by landfill mining. In addition, it is analyzed that the lifespan is extended to 20 years, if the combustible waste of new inputting waste is sorted and combusted for energy recovery and incineration ash, incombustible waste, and soil matter are only reclaimed into the existing Cheongju landfill. It is expected that the methodology and parameters of this study will be used as basic data when resource recovery potential is analyzed for another case study of landfill mining.
서현이 ( Hyun Yi Suh ),이우진 ( Woo Jin Lee ),나수영 ( Soo-young Na ) 대한소화기학회 2019 대한소화기학회지 Vol.73 No.5
Inflammatory bowel disease (IBD) is a chronic inflammatory disease of the gastrointestinal tract with an unknown etiology and pathogenesis. The incidence and prevalence of IBD are increasing rapidly in Korea. Approximately one-third of patients with IBD appear to develop extra-intestinal manifestations with the skin being one of the most commonly affected organs. They may precede, occur simultaneously, or follow the diagnosis of IBD. In addition, they may parallel with the luminal symptoms or independent from the disease activity of IBD. This review outlines the skin manifestations associated with IBD and discusses their management. Skin manifestations should be managed in close collaboration with a dermatologist. (Korean J Gastroenterol 2019;73:285-293)
증 례 : 경피적 승모판 풍선성형술을 시행한 환자에 나타난 감염성 심내막염 1예
강남규 ( Nam Kyu Kang ),김배근 ( Bae Keun Kim ),김해성 ( Hae Sung Kim ),박보배 ( Bo Bae Park ),노인영 ( In Young Nho ),이우진 ( Woo Jin Yi ),정혜선 ( Hye Seon Jung ) 대한내과학회 2016 대한내과학회지 Vol.90 No.1
Percutaneous mitral balloon valvuloplasty (PMBV) is the treatment of choice for mitral stenosis. Only a few reported cases have been reported in PMBV patients worldwide. In this study, a case of a 34 year-old female with infective endocarditis a year after PMBV is presented. The patient presented with fever, and peripheral vascular symptoms. Transthoracic echocardiography showed vegetation on the anterior mitral leaflets and Staphylococcus Viridans was isolated from blood cultures. The patient was successfully treated with Amoxicillin + Clavulate and Gentamicin. Further studies on the correlation between PMBV and infective endocarditis are needed. (Korean J Med 2016;90:37-40)
구강외과 수술용 스텐트 기반 영상유도 수술 시스템의 개발
이우진,김대승,이원진,이삼선,최순철,허민석,허경회,김명진,이지호 대한구강악안면방사선학회 2009 Imaging Science in Dentistry Vol.39 No.3
Purpose : The purpose of this study was to develop a stent-based image guided surgery system and to apply it to oral and maxillofacial surgeries for anatomically complex sites. Materials and Methods : We devised a patient-specific stent for patient-to-image registration and navigation. Threedimensional positions of the reference probe and the tool probe were tracked by an optical camera system and the relative position of the handpiece drill tip to the reference probe was monitored continuously on the monitor of a PC. Using 8 landmarks for measuring accuracy, the spatial discrepancy between CT image coordinate and physical coordinate was calculated for testing the normality. Results : The accuracy over 8 anatomical landmarks showed an overall mean of 0.56±0.16 mm. The developed system was applied to a surgery for a vertical alveolar bone augmentation in right mandibular posterior area and possible interior alveolar nerve injury case of an impacted third molar. The developed system provided continuous monitoring of invisible anatomical structures during operation and 3D information for operation sites. The clinical challenge showed sufficient accuracy and availability of anatomically complex operation sites. Conclusion : The developed system showed sufficient accuracy and availability in oral and maxillofacial surgeries for anatomically complex sites. (Korean J Oral Maxillofac Radiol 2009; 39 : 149-56)
김남진,이준성,김경아,이혜란,오장원,조이대,이우진,백현욱,전영빈,김정룡 대한간학회 2002 Clinical and Molecular Hepatology(대한간학회지) Vol.8 No.3
Hepatitis E is an infectious viral disease with clinical and morphologic features of acute hepatitis. Although HEV infection is endemic in the Indian subcontinent, Southeast and Central Asia, a large outbreak of hepatitis E was identified in China. Smaller outbreaks have been observed in the Middle East, northern and western parts of Africa, and Mexico. Sporadic hepatitis E also has been observed in several countries. In nonendemic regions, the sporadic cases of hepatitis E are almost always associated with travel to HEV-endemic regions. In Korea, there has been no report on hepatitis E. Recently, we experienced a case of acute icteric hepatitis in which serologic study showed seroconversion of IgM anti-HEV. The patient did not have any travel history to an HEV-endemic area. We report this as an initial case of acute hepatitis E in Korea. (Korean J Hepatol 2002;8:312-316)