conclusions pci was accompanied by some improvement in left atrial deformation indices as assessed by tissue doppler imaging. revascularization can, therefore, improve patient outcome. results regarding changes in left trial functional parameters after pci, those such as the strain of the septal wall and the anterior and inferior walls and the strain rate of the anterior and lateral walls signi...

Metallic glasses are known to have a remarkably robust yield strength, admitting Weibull moduli as high for crystalline engineering alloys. However, their postyielding behavior is strongly varying, with large scatter in both flow stress levels and strains at failure. Using x-ray tomography, we reveal how strain-dependent internal evolution of shear-band cavities underlies this unpredictable res...

Detennining the constitutive model is a key procedure in numerical simulation of concrete structures. The uniaxial stress-strain curve important information to determine model. This paper provided simplified that can be used simulation. comparison between Chinese Code and shows compression close code value. Numerical beams show proposed has high computational efficiency good convergence.

Abstract To determine the stress–strain curve of a ductile material up to fracture from tensile test, necking contour is measured by an optical measurement technique. The radius minimal cross-sectional area and curvature are used as input for analytical corrections curve, well finite element inverse simulations. Due increasing surface roughness that develops during testing, precise determinatio...

Accurate joint models require the ability to predict soft tissue behavior. This study evaluates the ability of constitutive equations to predict the nonlinear and viscoelastic behavior of tendon and ligament during stress relaxation testing in a porcine model. Three constitutive equations are compared in their ability to model relaxation, recovery and reloading of tissues. Quasi-linear viscoela...

BACKGROUND Malignancy is correlated with stiffness which is assessed by real time elastosonography (RTE). RTE is not used in routine practice. We aimed to establish the learning curve of RTE on radiology residents. METHODS Forty >/=1 cm solitary thyroid nodules referred to fine needle aspiration cytology were examined with RTE by a radiology specialist and two radiology residents separately. ...