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박철근 ( Park Cheol-geun ),김영민 ( Kim Young-min ),이남호 ( Lee Nam-ho ) 한국구조물진단유지관리공학회 2023 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.27 No.1
현재 국내 터널내 교통사고가 증가하는 추세임에도 불구하고 터널 내 화재사고 발생시 대처할수 있는 보수 · 보강 방안이 미흡한 실정이다. 터널 화재에 따른 도로의 기능 마비로 발생할 수 있는 경제적·사회적·지역간 단절에 대웅하고 경제적 손실과 2차 안전사고를 위한 파형강판+라이다 공법을 이용한 보수 보강 공법을 제시하고자 한다.
어양담(Eo Yang Dam),송현승(Song Hyeon Seung),이용웅(Lee Yong Woong),박철근(Park Cheol Geun),황명균(Hwang Myung Kyun) 한국지적정보학회 2007 한국지적정보학회지 Vol.9 No.2
비행궤적을 가지고 날아오는 물체의 출발위치를 정확히 계산하기 위해서는 지형 고도를 고려한 수평위치로의 보정이 필요하다. 그런데 일부 탐지체계의 경우 종이지도에 표시된 위치의 등고선을 육안판독하여 그 고도값을 입력하게 되므로 열악안 판독환경, 판독개인차 및 시간제한 등으로 인해 부정확한 위치 생성 가능성이 있다. 따라서 동일 지점에 대한 등고선 육안판독 고도와 등고선 제작에 활용된 수치고도자료를 계산한 결과를 비교하여 두 결과의 차이가 있는지를 분석하고, 현지측량자료와의 성과를 비교하였다. 또한 현재 군이 보유하고 있는 기준자료와 수치고도자료들을 종류별로 차이를 분석하여 독자적 탐지체계 개발시 적합한 수치고도자료를 제안하였다. Accurate position can be calculated by input height of intial fire position in fire-finding system. In some detection systems, operators read a specific position which lies on contours of the paper map, it is possible to get inaccurate object position due to bad interpretation condition, individual maturity, and time limit. Positional accuracy test performed between interpretation height of paper map and calculation result of digital map. Also, the experiment results calculated from several types of digital elevation data are compared with reference data. Author suggests the proper type of DTED (Digital Terrain Elevation Data)to future domestic fire-finding system.
김민형,최문석,이준혁,고광철,백승운,유병철,정재홍,최성철,김동희,이혁,송봉근,이종철,박철근 대한간학회 2003 Clinical and Molecular Hepatology(대한간학회지) Vol.9 No.1
Mesenchymal hamartoma of the liver (MHL) is a rare benign tumor usually found in childhood, especially during the first two years. MHL is extremely rare in adults. Most reported cases present with a slow growing abdominal mass. It is thought to be a developmental anomaly and consists of bile ducts, hepatocytes and mesenchymal tissue. We report a case of mesenchymal hamartoma of the liver in an adult male with a brief review of the literature.
김재준,김지은,백승운,최문석,이준혁,고광철,이종철,최규완,박철근,현재근,오영륜,이풍렬 대한소화기학회 1999 대한소화기학회지 Vol.33 No.5
Background/Aims: Although autoimmune hepatitis (AIH) is common in western countries, only sporadic cases have been reported in Korea. The aims of the study were to analyze the clinical and histological features and to examine clinical course of AIH in Korea. Methods: One-hundred and ninety-seven patients with chronic liver disease of unknown etiology were screened with anti-nuclear antibody (ANA) and anti-smooth muscle antibody (SMA). Fourteen (7.1%) patients had either antibodies and only 11 (5.6%) of them met the criteria suggested by the International Autoimmune Hepatitis Group as definite or probable. The clinical, laboratory and histologic features of these eleven cases were reviewed. Results: The mean age was 53.5 (31-73) years and all of the patient were female. The level of globulin and IgG were elevated in 63.6% and 75% of the patients respectively. ANA and SMA were positive in 54.5% and 72.7% of the patients, respectively. Eigh (72.7%) of the patients showed severe inflammation in liver iopsy. Among 8 patients who received immunosuppressive therapy, seven patients (87.5%) showed initial response, and biochemical and serologic remissions were achieved in 5 (62.5%) and 2 (25.0%) patients, respectively. Conclusions: AIH seems to be partly responsible for chronic liver disease of unknown etiology in Korea. AIH should be suspected in female patients with chronic liver disease of unknown etiology, especially in case of hypergammaglobulinemia.