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주진규,김신은,이군재,김선국,이성호,Joo, Jin-Kyu,Kim, Shin-Eun,Lee, Gun-Jea,Kim, Sun-Kuk,Lee, Sung-Ho 한국건설관리학회 2012 한국건설관리학회 논문집 Vol.13 No.3
국내 공동주택의 리모델링 수월성 및 이에 따른 장수명화를 위해 그린 프레임 공법이 개발되었다. 그린 프레임 공법은 합성 프리캐스트 콘크리트 부재를 이용한 라멘구조로 벽식 구조와는 달리 양중 및 설치가 골조공사의 주공정으로 작용한다. 따라서 그린 프레임에 의한 적정 골조공사 공기 산정을 위해서는 체계적인 양중계획이 필요하다. 그러나 양중계획은 그린 프레임을 구성하는 요소인 합성 PC 부재(기둥, 보)의 단위 양중공정에 대한 분석이 선행되어야 한다. 따라서 본 연구는 그린 프레임 합성 PC 부재의 양중공정을 분석하는 것을 목적으로 한다. 이를 위해 합성 PC 기둥과 보의 양중절차와 시간을 도출하고, 그 결과를 사례 프로젝트에 적용하여 기준층의 양중 사이클을 분석한다. 본 연구의 결과는 향후 그린 프레임에 의한 골조공사 양중계획 시 핵심자료로 사용된다. Green frame technology intended to facilitate the remodeling of apartment housing complexes in Korea and extend their service life has been developed. Green frame design is a Rahmen structure using composite precast concrete members and, unlike a bearing-wall structure, lifting and installing structural members accounts for major steps of structural construction. Therefore, if green frame structure construction is to be scheduled appropriately, systematic lifting plan needs to be developed in advance. Development of lifting plan also requires unit lifting process of composite PC members (columns and beams) that consist of green frame to be analyzed first. Therefore, this study attempts to analyze the lifting process of composite PC members used in green frame structure. To that end, lifting procedure and time of composite PC column and beam are estimated and applied to a project case to analyze the lifting cycle of reference floor. Outcomes produced herein will be used as key data for development of lifting plan in subsequent green frame structure construction.
<SUP>18</SUP>F-FDG PET-CT에서 진단된 갑상선 우연종의 악성종양 발견율 및 특징
이강영,고건<SUP>1<.SUP>,김선국<SUP>1<.SUP>,고진철<SUP>1<.SUP>,김행수,최상용,박신희,박용휘<SUP>2<.SUP>,Kang Young Rhee,Gun Koh,<SUP>1<.SUP>,Sun Kuk Kim,<SUP>1<.SUP>,Jin Chul Koh,<SUP>1<.SUP>,Haeng Soo Kim,Sang Yong Choi,Shin 대한갑상선-내분비외과학회 2008 The Koreran journal of Endocrine Surgery Vol.8 No.1
<B>Purpose: </B>PET-CT is often used to differentiate benign or malignant thyroid incidentalomas. In this retrospective study, we evaluated whether the <SUP>18</SUP>F-FDG uptake pattern and PET-CT findings improved accuracy over the standardized uptake value (SUV). <B>Methods:</B> <SUP>18</SUP>F-FDG PET-CT was performed on 2,178 subjects from August, 2004, to October, 2007, in Sung-ae Hospital. PET-CT was performed on 806 patients (37%) with suspected or known nonthyroidal cancer and 1,372 healthy subjects (63%) without a previous history of cancer. We investigated the clinical characteristics of patients, history, standardized uptake value (SUV), ultrasonography, and hormone levels in blood. Thyroidal cancer was confirmed by ultrasonography-guided fine needle aspiration and pathology after thyroid operation. <B>Results:</B> The prevalence of focal thyroid lesions on PET-CT was 8.8% (191/2178). Thyroid cancer confirmation was 7.9% (15/191). The maximum SUV of malignant thyroid lesions were significantly higher than that of benign lesions (7.00±3.08 vs. 4.49±1.84, P<0.001). <B>Conclusion:</B> PET-CT image interpretation that includes 18F-FDG uptake and SUV is better than PET-CT alone for differentiating benign and malignant lesions. Thyroid cancer risk increases as SUVmax levels increase. <B>(Ko</B><B></B><B>rean J Endocrine Surg 2008;8:38-42)</B>