نتایج جستجو برای: oscillatory plates
تعداد نتایج: 56201 فیلتر نتایج به سال:
منشأ گسیختگی و خرابی کلی سازه، و قوع ترک در اعضای سازه می باشد. در این تحقیق به عیب یابی یکی از مهمترین اعضای سازه ای که صفحات خمشی می باشند ، پرداخته شده است. یکی از وجوه تمایز این تحقیق نسبت به تحقیقات گذشپته این است که فقط از پاسخ های سازه خراب جهت عیب یابی استفاده می شود و نیاز به پاسخ های سازه سالم نمی باشد. در این تحقیق، عیب یابی صفحات با استفاده از چهار روش مختلف از جمله تبدیل موجک، تبد...
The effects of apparent wall slip on rheometric measurements waxy gels are quantified for consisting a macrocrystalline wax added in mineral oil concentrations 3.0 and 7.5 wt. %. formed situ stress-controlled rheometer, rheological properties then obtained. Seven different geometry configurations, including parallel plates, concentric cylinders, vane, employed. surface roughness the geometries ...
BACKGROUND High-frequency oscillatory ventilation is an alternative ventilation mode that improves oxygenation in trauma patients in whom conventional ventilation strategies have been unsuccessful. OBJECTIVE To evaluate the effect of high-frequency oscillatory ventilation on oxygenation, survival, and parameters predictive of survival in trauma patients. METHODS A retrospective case series ...
An excitable medium is a nonlinear dissipative dynamical system able to sustain undamped wave propagation. Examples of excitable media include cardiac tissue and neural media. This thesis investigates a class of novel dynamical phenomena in excitable media, known collectively as oscillatory waves. The examples of oscillatory waves considered here are Tango waves, breathers and pulse generators....
The baaterium Flaobcterium aquatile (Frankland and Frankland) Bergey et al. was isolated and described as BaciUus aquatiis (Frankland and Frankland, 1889). The species was slected by Bergey et al. (1923) as the type for the genus Flavoberium. With the exception of studies by Gary (1950) the genus appears to have rceived very little systematic investigation. If the type concept of taxonomy is-fo...
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