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민태훈(Taehoon Min),나형철(Hyungchul Na),김노유(Nohyu Kim) 한국비파괴검사학회 2011 한국비파괴검사학회지 Vol.31 No.2
위상잠금 적외선 열화상장치를 제어하기 위한 랩뷰(LabVlEW) 프로그램을 기본적인 적외선 열화상 하드웨어와 함께 개발하였다. 개발된 열화상 제어 프로그램은 열화상 카메라와 할로겐램프를 임의의 주기함 수로 동기화 시키면서 사이리스터 회로를 기반으로 랩뷰 소프트웨어에 의해 제어가 가능하도록 설계하였다. 개발된 프로그램은 스크린 메뉴 방식으로 구성되어 컴퓨터 화면에서 열원의 주기와 에너지, 적외선 카메라의 동작과 이미지 취득을 사용자가 자유롭게 변경하고 그 결과를 화면에서 확인할 수 있도록 제작되었다. 개발된 열화상 제어 프로그램과 장치를 이용하여 판재 내부의 원형인공결함의 이미지를 검사하여 광학 이미 지와 비교하였다. A LabVIEW program has been developed together with simple infrared thermography(IRT) system to control the lock-in conditions of the system efficiently. The IR imaging software was designed to operate both of infrared camera and halogen lamp by synchronizing them with periodic sine signal based on thyristor(SCR) circuits. LabVIEW software was programmed to provide users with screen-menu functions by which it can change the period and energy of heat source, operate the camera to acquire image, and monitor the state of the system on the computer screen. In experiment, lock-in IR image for a specimen with artificial hole defects was obtained by the developed IRT system and compared with optical image.
조덕신,이병재,민태훈,강보현,김형훈,이병완,최동철 대한내과학회 2002 대한내과학회지 Vol.63 No.4
The hemolytic uremic syndrome (HUS) is a clinical syndrome defined by the presence of thrombocytopenia, microangiopathic hemolytic anemia and acute renal failure with or without a clinically apparent etiology. The conventional treatment of choice is plasmapheresis as a first-line therapy. Most patients respond to plasmapheresis whereas some patients are refractory to the therapy. The second-line therapy is not well established although various therapies such as steroid, vincristine, intravenous immunoglobulin have been suggested. The intravenous immunoglobulin therapy in refractory hemolytic-uremic syndrome have rarely been successful in complete remission. We report a case of refractory HUS in a 48 year-old man who developed hemolytic anemia, thrombocytopenia, acute renal failure and ischemic retinopathy. The patient was refractory to plasmapheresis as a first-line therapy. The patient received intravenous immunoglobulin therapy as a second-line therapy after 8 days of plasmapheresis, which subsequently resulted in a complete remission of refractory HUS. The complete remission using immunoglobulin in HUS has not been previously reported in Korea.(Korean J Med 63:431-435, 2002) 저자들은 국내에는 드문 성인 용혈성 요독 증후군 환자에서 혈장 교환술에 반응이 없어 이차적 치료로 면역글로불린을 투여하여 완전 치유가 되었기에 이를 문헌 고찰과 함께 보고하는 바이다.
Churg-Strauss 증후군에서 관찰된 말초신경병증의 임상 및 전기생리학적 특징
석정임,배종석,주은연,민태훈,최동철,김병준 대한신경과학회 2004 대한신경과학회지 Vol.22 No.2
Background: Churg-Strauss syndrome (CSS) is characterized by disseminated vasculitis and eosinophilia in patients with asthma. This study was performed to delineate the characteristics of peripheral neuropathy and to identify the factors associated with the severity of neurologic disability. Methods: We reviewed the medical records of 12 consecutive patients with Churg-Strauss syndrome who had been diagnosed at Samsung Medical Center. The diagnosis of CSS was based on the American college of Rheumatology 1990 criteria. Results: Of the 12 patients, 9 had neurologic involvement. Six had neurologic symptoms as presenting manifestations. All neurologic manifestations were peripheral neuropathy; 5 had multiple mononeuropathy, 2 had distal symmetric polyneuropathy, and 2 had mononeuropathy. Neurologic disability score depended on the rapidity of steroid treatment. Conclusions: Neurologic involvement is common and develops early in patients with CSS, usually manifesting as peripheral neuropathy. Neurologic disability score showed that early steroid therapy was related with less neurologic disability.