Results 11 to 20 of about 16,507,412 (359)

Strain rate sensitivity of sintered silver nanoparticles using rate-jump indentation [PDF]

open access: yes, 2018
Nanoindentation experiments were performed at room temperature on pressure-less sintered silver nanoparticles (AgNP) samples. Two representative die attach solder materials: sintered electrically conductive silver adhesive and conventional Sn-3.0Ag-0.5Cu
X. Long   +5 more
semanticscholar   +2 more sources

Intermediate strain rate behaviour of cancellous bone: from the lower to the higher strain rate [PDF]

open access: yesComputer Methods in Biomechanics and Biomedical Engineering, 2014
Not ...
Prot, Marianne   +3 more
openaire   +8 more sources

On the Strain Rate Sensitivity of Fused Filament Fabrication (FFF) Processed PLA, ABS, PETG, PA6, and PP Thermoplastic Polymers

open access: yesPolymers, 2020
In this study, the strain rate sensitivity of five different thermoplastic polymers processed via Fused Filament Fabrication (FFF) Additive Manufacturing (AM) is reported. Namely, Polylactic Acid (PLA), Acrylonitrile-Butadiene-Styrene (ABS), Polyethylene
N. Vidakis   +5 more
semanticscholar   +1 more source

Ultrahigh high-strain-rate superplasticity in a nanostructured high-entropy alloy

open access: yesNature Communications, 2020
Superplasticity describes a material’s ability to sustain large plastic deformation in the form of a tensile elongation to over 400% of its original length, but is generally observed only at a low strain rate (~10−4 s−1), which results in long processing
N. Nguyen   +5 more
semanticscholar   +1 more source

Strain-Rate-Dependent Phase Transition Mechanism in Polybutene1 during Uniaxial Stretching: From Quasi-Static to Dynamic Loading Conditions [PDF]

open access: yes, 2022
With the assistance of an ultrafast time-resolved synchrotron radiation wide-angle X-ray diffraction technique and a homemade hyphenated high-speed tensile apparatus, structural evolutions in the crystalline domain of polybutene-1 (PB-1) are elucidated ...
Wancheng Yu   +13 more
core   +1 more source

Myocardial strain and strain rate in Kawasaki disease [PDF]

open access: yesEuropean Heart Journal - Cardiovascular Imaging, 2013
We sought to determine whether velocity vector imaging (VVI)-derived left ventricular (LV) myocardial deformation indices could detect subtle myocardial abnormalities in acute Kawasaki disease (KD).The study cohort of children with KD was divided by coronary artery dilation (CAD, Z-score >2.5) and/or uncomplicated vs.
Rachel T, McCandless   +5 more
openaire   +2 more sources

A novel methodology for large strain under intermediate strain rate loading

open access: yesPolymer Testing, 2021
Hopkinson bar has already worked to measure mechanical properties of materials under high strain rates, but it fails to conduct intermediate strain rates loading with considerable deformation. Thereby, a methodology is proposed for achieving enough large
H. He   +5 more
doaj   +1 more source

Strain y strain rate para dummies

open access: yesRevista Colombiana de Cardiología, 2011
Desarrollos recientes en el campo de la ecocardiografía han permitido a los cardiólogos cuantificar de manera objetiva la función miocárdica regional y global con base en los conceptos de deformación (strain) y velocidad de deformación (strain rate) que ...
Pastor Olaya, MD   +2 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

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

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