Results 31 to 40 of about 94,291 (298)
Seismocardiographic Signal Timing with Myocardial Strain
, 2017 Speckle Tracking Echocardiography (STE) is a relatively new method for cardiac function evaluation. In the current study, STE was used to investigate the timing of heart-induced mostly subaudible (i.e., below the frequency limit of human hearing) chest ...
Kakavand, Bahram +3 more
core +1 more source
Vibrations and Relaxations in a Soft Sphere Glass: Boson Peak and Structure Factors [PDF]
, 2004 The dynamics of a soft sphere model glass, studied by molecular dynamics, is investigated. The vibrational density of states divided by $\omega^2$ shows a pronounced boson peak.
Schober, H. R.
core +1 more source
Investigation of the dynamic stability of bending-torsional deformations of the pipeline
Журнал Средневолжского математического общества, 2021 Nonlinear mathematical models are proposed that describe the dynamics of a pipeline with a fluid flowing in it: a) the model of bending-torsional vibrations with two degrees of freedom; b) the model describing flexural-torsional vibrations taking into ...
Velmisov Petr A. +2 more
doaj +1 more source
, 2006 A 2D temperature-dependent effective potential is calculated for the interacting longitudinal and transverse $L-$phonons of $\beta$ zirconium in the frozen-phonon model.
E. Yu. Tonkov +3 more
core +1 more source
Confinement effects on the vibrational properties of III-V and II-VI nanoclusters
, 2012 We present a first-principles study of the confinement effects on the vibrational properties of thousand atoms (radii up to 16.2 {\AA}) colloidal III-V and II-VI nanoclusters.
Bester, Gabriel, Han, Peng
core +1 more source
Effect of Vinyl Flooring on the Modal Properties of a Steel Footbridge [PDF]
, 2019 Damping ratios associated with non structural elements play an important role in mitigating the pedestrian-induced vibrations of slender footbridges.
Hernández Díaz, Alejandro Mateo +3 more
core +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective In multiple sclerosis, the optimal time for deploying a therapeutic intervention is before the central nervous system is damaged; given the success of trials treating the earliest stage of MS, the radiologically isolated syndrome, developing primary prevention strategies is an important next challenge.
Amy W. Laitinen +7 more
wiley +1 more source
Singular inextensible limit in the vibrations of post-buckled rods: Analytical derivation and role of boundary conditions [PDF]
, 2014 In-plane vibrations of an elastic rod clamped at both extremities are studied. The rod is modeled as an extensible planar Kirchhoff elastic rod under large displacements and rotations. Equilibrium configurations and vibrations around these configurations
GORIELY, Alain +2 more
core +6 more sources
Elinvar Materials: Recent Progress and Challenges
Advanced Engineering Materials, EarlyView.Elinvar materials, exhibiting temperature‐invariant elastic modulus, are critical for precision instruments and emerging technologies. This article reviews recent progress in the field, with a focus on the anomalous thermoelastic behavior observed in key material systems.
Wenjie Li, Yang Ren
wiley +1 more source
Estimation of the static modulus of elasticity of wood from the dynamic modulus of elasticity
Forest SystemsAim of study: Analyze the behavior and predictive capacity of different non-destructive testing (NDT) methods—ultrasound, longitudinal and transverse vibrations, and static bending— for estimating the MOEGTO in two species of great forestry interest in ...
Xuxan Rosas-Ramos +6 more
doaj +1 more source