نتایج جستجو برای: naca

تعداد نتایج: 757  

Journal: :Incertitudes et fiabilité des systèmes multiphysiques 2018

2010
Bastiaan M Gerritse Annelies Schalkwijk Ben J Pelzer Gert J Scheffer Jos M Draaisma

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...

ژورنال: مهندسی سازه 2006
بهروز میرزایی سید اسماعیل رضوی

     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...

2014
Aigul Moldobaeva Otgonchimeg Rentsendorj John Jenkins Elizabeth M. Wagner

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 ...

2011
Thomas O'Hara László Virág András Varró Yoram Rudy

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...

Journal: :Journal of Mechanical Engineering Science and Technology 2019

Journal: :Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine 2021

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 ...

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