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박진기(J. G. Park),안덕찬(D. C. Ahn),남재복(J. B. Nam),김영석(Y. S. Kim) 한국소성가공학회 2010 한국소성가공학회 학술대회 논문집 Vol.2010 No.10
This paper includes a review of biaxial tensile test equipment and specimen. Biaxial testing of metal is becoming prevalent in sheet metal industry to evaluate mechanical properties for tested materials. Because light and high strength materials as aluminum, magnesium, titanium, and ultra high strength steel are largely anisotropic, biaxial tensile test i: used as opposed to the common uniaxial test. Also, the stresses acting on a component in service are generally multi-axial in nature. Therefore, it is necessary to consider the mechanical properties not only under uniaxial stress states but also under these multi-axial states of stress. In this paper, the several kinds of biaxial tensile test were introduced and it: limitation and challenge were discussed.
김선주,김현,박유현,강 찬 영,노영선,김오현 연세대학교의과대학 2021 Yonsei medical journal Vol.62 No.7
Purpose: Severe acute respiratory syndrome coronavirus 2, which causes coronavirus disease 2019 (COVID-19), has spreadworldwide. Global health systems, including emergency medical systems, are suffering from a lack of medical resources. Using amethod for classifying patients visiting the emergency department (ED), we aimed to investigate trends in emergency medicalsystem usage during the COVID-19 epidemic in Korea. Materials and Methods: This retrospective observational study included patients who visited emergency medical institutionsregistered with the National Emergency Department Information System database from January 1, 2017 to May 31, 2020. The primaryoutcome was identification of changes in the distribution of patients visiting the ED according to the type of emergencymedical institution. The secondary outcome was a detailed comparison of Korean Triage and Acuity Scale (KTAS) levels and patientdistributions before and during the infectious disaster crisis period. Results: Severe patients visited regional emergency centers (RECs) and local emergency centers (LECs) more frequently duringthe COVID-19 period, and disposition status warranting admission to the intensive care unit or resulting in death was more commonin RECs and LECs during the COVID-19 period [RECs, before COVID-19: 300686 (6.3%), during COVID-19: 33548 (8.0%)(p<0.001); LECs, before COVID-19: 373593 (3.7%), during COVID-19: 38873 (4.5%) (p<0.001)]. Conclusion: During the COVID-19 period, severe patients were shifted to advanced emergency medical institutions, and theKTAS better reflected severe patients. Patient distribution according to the stage of emergency medical institution improved, andvalidation of the KTAS triage increased more in RECs.
백승돈,장선주,박소은,오태진,임재찬,이호수,박소정,김태희 대한의학회 2011 Journal of Korean medical science Vol.26 No.12
HMG-CoA reductase inhibitors (statins) are widely used to treat hypercholesterolemia. Among the adverse effects associated with these drugs are statin-associated myopathies,ranging from asymptomatic elevation of serum creatine kinase to fatal rhabdomyolysis. Fluvastatin-induced fatal rhabdomyolysis has not been previously reported. We describe here a patient with liver cirrhosis who experienced fluvastatin-induced fatal rhabdomyolysis. This patient had been treated with simvastatin (20 mg/day) for coronary artery disease and was switched to fluvastatin (20 mg/day) 10 days before admission. He was also taking aspirin, betaxolol, candesartan, lactulose, and entecavir. Rhabdomyolysis was complicated and continued to progress. He was treated with massive hydration, urine alkalization, intravenous furosemide, and continuous renal replacement therapy for acute renal failure, but eventually died due to rhabdomyolysis complicated by hepatic failure. In conclusion, fluvastatin should be used with caution in patients with liver cirrhosis,especially with other medications metabolized with CYP2C9.
완고한 보행장애를 주소로 하는 만성기 뇌출혈 환자의 한의 치료 및 재활 운동 증례보고 1례 : GAITRite®를 이용하여
채인철,최인우,김찬영,박미소,박상수,정은선,차지윤,조현경,김윤식,설인찬,유호룡 대한한방내과학회 2019 大韓韓方內科學會誌 Vol.40 No.4
Objective: The aim of this study was to report the effectiveness of traditional Korean medicine treatment with rehabilitation exercise on a chronic intracerebral hemorrhage patient with a severe gait disturbance. Method: The patient was treated with Korean herbal medicine (Gami-sibjeondaebo-tang) along with acupuncture, moxibustion, and rehabilitation exercise. The treatment effect was evaluated through the Manual Muscle Test (MMT) and the Korean version of the Modified Barthel Index (K-MBI). The gait of the patient was evaluated by Functional Ambulatory Category (FAC) and the Timed Up and Go (TUG) test. The spatiotemporal parameters were evaluated by a walkway system (GAITRite® system) and gait symmetry was evaluated by Symmetry Criterion (SC). Results: After 111 days of traditional Korean medicine treatment, the spatiotemporal parameters and symmetry of the patient’s gait improved. Conclusion: This study suggested that traditional Korean medicine treatment with rehabilitation exercise could be effective for gait disturbance in patients with chronic intracerebral hemorrhage.