نتایج جستجو برای: naca
تعداد نتایج: 757 فیلتر نتایج به سال:
BACKGROUND To determine the advanced life support procedures provided by an Emergency Medical Service (EMS) and a Helicopter Emergency Medical Service (HEMS) for vitally compromised children. Incidence and success rate of several procedures were studied, with a distinction made between procedures restricted to the HEMS-physician and procedures for which the HEMS is more experienced than the EMS...
بررسی و شناخت طرح جدیدی برای حل معادلات اویلر دو بعدی نشان داده میشود. حجم محدود جیمسون و همکاران با روش اصلاح شار بر پایه فیزیکی ارتقا مییابد. معادلات حاکم با روش حجم محدود صریح گسسته میشوند و سپس با استفاده از زمانروی تا رسیدن به یک حالت پایا حل میشوند. مدلی مناسب از اتلاف عددی به کار گرفته میشود. مزیت این روش سریع بودن همگرایی و افزایش محدوده پایداری است. برای ارزیابی قابلیت طرح، ت...
The process of leukocyte recruitment to the airways in real time has not been extensively studied, yet airway inflammation persists as a major contributor to lung pathology. We showed previously in vivo, that neutrophils are recruited acutely to the large airways after periods of airway distension imposed by the application of positive end-expiratory pressure (PEEP). Given extensive literature ...
Cellular electrophysiology experiments, important for understanding cardiac arrhythmia mechanisms, are usually performed with channels expressed in non myocytes, or with non-human myocytes. Differences between cell types and species affect results. Thus, an accurate model for the undiseased human ventricular action potential (AP) which reproduces a broad range of physiological behaviors is need...
Abstract Objective We aimed to investigate the medical characteristics of helicopter hoist operations (HHO) in HEMS missions. Methods designed a retrospective study evaluating all HHO and other human external cargo (HEC) missions performed by Swiss Air-Rescue (Rega) between January 1, 2010, December 31, 2019. Results During period, 9,963 (88.7 %) with HEC were conducted during day, 1,265 (11.3 ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید