Results 11 to 20 of about 2,812,703 (301)

Strain rate dependency of dislocation plasticity

open access: yesNature Communications, 2021
The relationship between the strain rate and micro-scale deformation in metals is still poorly understood. Here the authors use discrete dislocation dynamics and molecular dynamics to establish a universal relationship between material strength ...
Haidong Fan   +4 more
doaj   +1 more source

Assessment of left ventricular function in horses with aortic regurgitation by 2D speckle tracking

open access: yesBMC Veterinary Research, 2020
Background Aortic regurgitation (AR) may lead to left ventricular (LV) dilatation, cardiac arrhythmias and heart failure. Close follow-up of horses with AR is therefore paramount to detect onset of cardiac decompensation.
A. Decloedt   +4 more
doaj   +1 more source

Stress-strain synchronization for high strain rate tests on brittle composites [PDF]

open access: yes, 2018
Nowadays, many researchers develop rate-dependent composite material models for application in dynamic simulations. Ideally, full stress-strain curves at a wide range of strain rates are available for identification of the different parameters of these ...
Garoz Gómez, David   +6 more
core   +1 more source

Right atrial function assessed by volume-derived values and speckle tracking echocardiography in patients with hypertrophic cardiomyopathy

open access: yesBMC Cardiovascular Disorders, 2020
Background To detect the right atrial (RA) functions in hypertrophic cardiomyopathy (HCM) patients by using volume-derived values and two-dimensional strain.
Jun Huang   +5 more
doaj   +1 more source

Effect of changing strain rate on flow stress during hot deformation of type 316L stainless steel [PDF]

open access: yes, 2008
ompression testing has been used with ramped changes in strain rate during deformation, and with changes in strain rate between double deformations to study their effects on flow stress.
Abbod, MF   +4 more
core   +1 more source

Modelling of aluminium sheet material at elevated temperatures [PDF]

open access: yes, 2004
The formability of Al–Mg sheet can be improved considerably, by increasing the temperature.\ud At elevated temperatures, the mechanical response of the material becomes strain rate dependent.
Boogaard, A.H. van den   +2 more
core   +8 more sources

Strain and strain rate: An emerging technology in the perioperative period

open access: yesAnnals of Cardiac Anaesthesia, 2016
Newer noninvasive parameters are being used for perioperative detection of myocardial ischaemia. TDI and global strain rate are some of these parameters. TDI signal is a modification of the routine Doppler flow signal.
Vishwas Malik   +2 more
doaj   +1 more source

The Effect of Strain Rate on Diffusion Flames [PDF]

open access: yes, 1975
Several steady state and time-dependent solutions to the compressible conservation laws describing direct one-step near-equilibrium irreversible exothermic burning of initially unmixed gaseous reactants, with Lewis-Semenov number unity, are presented ...
Carrier, G. F.   +2 more
core   +1 more source

Strain and Strain Rate Echocardiography

open access: yesMethodist DeBakey Cardiovascular Journal, 2006
Myocardial function is eventually determined by the shortening and lengthening of myocardium, i.e., myocardial deformation or strain. The exact and direct measure of myocardial deformation has been dependent on the in vitro analysis of myocardial length.
Jianwen Wang, Sherif F. Nagueh
openaire   +1 more source

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