نتایج جستجو برای: strain rate

تعداد نتایج: 1154942  

Journal: :journal of mechanical research and application 2012
m. najafi r. eslami-farsani s. m. r. khalili

the aim of this work is to evaluate the influence of fabrication methods on the com-pressive properties of sandwich composites using both experimental work and numerical simulations. two types of sandwich composites with e-glass/kevlar/polyester resin facings and end-grain balsa wood as core have been produced by vacuum infusion processing (vip) and hand-lay up (hl) method. compression tests on...

A Najafizadeh R Ebrahimi,

Processing map for hot working of Ti-IF steel has been developed in the temperature range of 750 to 1100 °C and strain rate of 0.01 to 100 s-1. This map in the austenite region exhibits a single domain with a peak efficiency of 45% occurring at 1025 °C and strain rate of 0.02 s-1. The domain extends over the temperature range of 1000 to 1100 °C and strain rate range of 0.01 to 1 s-1. The true s...

The study aimed was to measure left ventricular (LV) strain using speckle tracking echocardiography (STE) for assessment of LV function. Eighty-two subjects (mean age 57±9 years) with suspected chest pain underwent two-dimensional (2D)-echocardiography before coronary angiography. Conventional echocardiographic parameters were used for the assessment of LV function. Longitudinal strain and its ...

Journal: :archives of cardiovascular imaging 0
alireza moaref cardiovascular research center, shahid faghihi hospital, shiraz university of medical sciences, shiraz, ir iran; cardiovascular research center, shahid faghihi hospital, shiraz university of medical sciences, shiraz, ir iran. tel/fax: +98-7112342248 firuzeh abtahi cardiovascular research center, shiraz university of medical sciences, shiraz, ir iran kamran aghasadeghi cardiovascular research center, shiraz university of medical sciences, shiraz, ir iran shahnaz shekarforoush department of physiology, arsanjan branch, islamic azad university, shiraz, ir iran

conclusions this study indicated that the rv systolic strain and strain rate can be used to detect early rv systolic dysfunction in ssc patients without pulmonary hypertension. these parameters may be useful for the provision of a more adequate management of ssc patients. results in the ssc patients, the rv strain (- 19 ± 10 vs. - 25 ± 4 %; p = 0.004) and the systolic strain rate (- 1.3 ± 0.5 v...

Journal: :Japanese Geotechnical Society Special Publication 2015

Journal: :Journal of the Japan Institute of Metals and Materials 2000

Journal: :Journal of the Society of Materials Science, Japan 2015

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