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단일 병원에서 경험한 최근 급성 바이러스간염의 원인 및 임상 양상
강형민 ( Hyung Min Kang ),정숙향 ( Sook Hyang Jeong ),김진욱 ( Jin Wook Kim ),이동훈 ( Don Hun Lee ),최창규 ( Chang Kyu Choi ),박영수 ( Young Soo Park ),황진혁 ( Jin Hyuk Hwang ),김나영 ( Na Young Kim ),이동호 ( Dong Ho Lee ) 대한간학회 2007 Clinical and Molecular Hepatology(대한간학회지) Vol.13 No.4
강형민(Hyung-Min Kang),김철완(Cheol-Wan Kim),조태환(Tae-Hwan Cho),김동하(Dong-Ha Kim),윤수환(Su-Hwan Yun),권혁빈(Hyeok-Bin Kwon) 한국철도학회 2011 한국철도학회 학술발표대회논문집 Vol.2011 No.10
The aerodynamic features of a pantograph of a high speed train are analyzed according to shapes of pantograph covers. For this purpose two types of pantograph covers were selected: a wedge type cover and a cone type cover. Then the change of the aerodynamic forces of the pantograph affected by each type of the pantograph cover was computed. These results were compared with the original lift force of the pantograph. From the results the cone type cover changes the flow direction from side to side compared with the wedge type cover. Consequently it is confirmed that the effect of the wedge type cover on the lift force of pantograph is smaller than that of the cone type cover.
강형민(Hyung-Min Kang),조태환(Tae-Hwan Cho),김동하(Dong-Ha Kim),김철완(Cheol-Wan Kim),권혁빈(Hyeok-Bin Kwon),윤수환(Su-Hwan Yun) 한국철도학회 2012 한국철도학회 학술발표대회논문집 Vol.2012 No.5
팬터그래프 시스템의 소음 수준 개선을 위해 팬터그래프 커버의 저소음 형상 설계를 수행하였다. 이를 위해 차세대 고속전철에서 사용 예정인 커버의 측면 단면 형상을 기본 형상으로 하여 전산해석 및 소음 분석을 수행하였다. 이후 전방 커버 및 후방 커버의 수직 단면부 형상 개선을 위해 단면부를 쐐기 형태로 설계하였다. 이 때 설계 변수로 쐐기 형태 단면부의 가로 길이(Ɩ)를 선정하였다. 그 결과 쐐기 형상으로 수직 단면부 형상을 변화시킬 경우 기본 형상에 비해 소음 수준이 최대 1dB(A) 감소함을 확인하였다. The cross-sectional shape of pantograph cover was designed for reduction of the noise level of the pantograph system. The baseline model was set as the cross-section of the pantograph cover of the next generation high speed train and numerical simulation and noise analysis was performed. Then, to improve the vertical section shape of front and rear covers, the shape was designed as wedge type; the design parameter was determined as crosswise length of the wedge. Consequently, the noise level of designed cover is reduced by 1dB(A) compared with the baseline cover model.
복막투석 환자에서 발생한 Burkholderia cepacia 복막염
강형민 ( Hyung Min Kang ),박재은 ( Jae Eun Park ),이형돈 ( Hyoung Don Lee ),한봉준 ( Bong Jun Han ),김수현 ( Su Hyun Kim ),신석호 ( Suk Ho Shin ),윤수진 ( Su Jin Yoon ) 대한내과학회 2006 대한내과학회지 Vol.71 No.2
Burkholderia cepacia is an important opportunistic pathogen in immunocompromised and nosocomial patients, but this bacterial infection is rare in Korea. We report a case of Burkholderia cepacia peritonitis in a patient on CAPD. A 69-year-old male on CAPD for 5 years was presented with turbid peritoneal dialysate, diffuse abdominal pain and diarrhea. He was treated initially with intraperitoneal cefazolin and ceftazidime, and then intraperitoneal meropenem and oral TMP/SMX. His symptoms had improved with antibiotic treatment, but white blood cell counts of dialysate increased, instead. Burkholderia cepacia was isoloated from peritoneal fluid culture. The patient refused catheter removal in spite of our recommendation. He died of suddenly developed acute myocardial infarction and upper gastrointestinal bleeding. Catether tip culture also revealed Burkholderia cepacia.(Korean J Med 71:219-223, 2006)
유지연 ( Ji Youn Yoo ),강형민 ( Hyung Min Kang ),최진우 ( Jin Woo Choi ),정숙향 ( Sook Hyang Jeong ),김형호 ( Hyung Ho Kim ),김영훈 ( Young Hoon Kim ),이혜승 ( Hye Seung Lee ) 대한내과학회 2011 대한내과학회지 Vol.81 No.3
Of the various causes of malabsorption, to our knowledge, blind loop syndrome has been reported in Korea only rarely. Here, we report the case of a 63-year-old woman with hepatitis C virus-associated liver cirrhosis. The patient complained of abdominal distension and had an abnormal serum biochemistry caused by blind loop syndrome related to childhood abdominal surgery. Her laboratory findings showed an iron deficiency anemia, hypocholesterolemia, hypoproteinemia and hypoalbuminemia, and were confounded with those of liver cirrhosis. She underwent resection of the blind loop segment of the small intestine, after which her abdominal symptoms and abnormal laboratory findings improved, although they did not completely normalize due to her liver cirrhosis. (Korean J Med 2011;81:372-377)
서재규(Jae Kyu Suhr),강형민(Hyung Min Kang),정호기(Ho Gi Jung) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
This paper proposes a selection method of regions of interest (ROIs) for pedestrian detection using stereo vision. We define a ROI as a place where both driver and pedestrian are hardly see each other since this is dangerous location from a pedestrian detection viewpoint. The proposed method first finds boundary between the ground plane and obstacle based on UV-disparity, and then measures the depth change of obstacles. Finally, ROIs of pedestrian detector are selected by finding local extrema of the measured depth change. This approach can dramatically reduce the ROIs of pedestrian detection in order to decrease both false alarm and computational cost.