نتایج جستجو برای: strain rate imaging

تعداد نتایج: 1573666  

Journal: :international journal of iron & steel society of iran 2004
r ebrahimi a najafizadeh

processing map for hot working of ti-if steel has been developed in the temperature range of 750 to 1100 °cand strain rate of 0.01 to 100 s-1. this map in the austenite region exhibits a single domain with a peak efficiencyof 45% occurring at 1025 °c and strain rate of 0.02 s-1. the domain extends over the temperature range of 1000to 1100 °c and strain rate range of 0.01 to 1 s-1. the true stre...

Journal: :Heart, lung & circulation 2007
Liza Thomas

This article discusses the traditional and more recent echocardiographic measures that have been employed to evaluate atrial function. Conventional parameters commonly used and reported in the literature include the study of the various phases of atrial activity using atrial volume measurements, the peak A wave velocity, its velocity time integral (VTI) and the fraction of atrial contribution (...

2003
N. Malpica A. Santos E. Pérez M. García-Fernández Gregorio Marañón M. Desco

The use of Tissue Doppler Imaging Imaging (TDI) has allowed to obtain velocity, strain and strain rate parameters in real time and is currently used routinely in the echocardiography lab. For analysis2D image sequences, profiles are marked on the image, and quantitative time profiles are obtained from them, a procedure known as anatomic M-mode. For correct quantification, the position of the re...

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