نتایج جستجو برای: temperature gradient relaxation time
تعداد نتایج: 2401188 فیلتر نتایج به سال:
This paper investigates the axial unsteady flow of a generalized Burgers’ fluid with fractional constitutive equation in a circular micro-tube, in presence of a time-dependent pressure gradient and an electric field parallel to flow direction and a magnetic field perpendicular on the flow direction. The mathematical model used in this work is based on a time-nonlocal constitutive equation for s...
Abstract In this article, we have investigated the peristaltic transport of electro-osmotic flow Jeffrey fluid in an asymmetric channel, which walls are modulated by array patches. presence Electrical Debye Layer (EDL), Poisson Boltzmann equation for electrical potential within micro channel is considered. To evaluate potential, Debye-Huckel linearization employed governing equations modeled an...
UNLABELLED BACKGROUND/MOTIVATION: To directly determine isovolumetric cardiac time intervals by magnetic resonance elastography (MRE) using the magnitude of the complex signal for deducing morphological information combined with the phase of the complex signal for tension-relaxation measurements. METHODS Thirty-five healthy volunteers and 11 patients with relaxation abnormalities were subject...
The effect of lid closure and opening upon the ocular temperature gradient was studied in the rabbit eye by determining the changes in temperature of the anterior surface of the central cornea, the pupillary area of the anterior chamber, and the midiris area of the posterior chamber. With lid closure the temperature of all three areas rose to a similar level of 37.7° C. so that the ocular tempe...
Relaxation force properties of single sea buckthorn berries under uni-axial compression were studied. Sea buckthorn berries had a time dependent behavior similar to other viscoelastic materials. The three-term Maxwell model with a maximum relative difference (MRD) of % 5 ≤ was chosen as the best fit equation to the relaxation data. For both Indian Summer and Sinensis cultivars, the firmness (as...
The motion of temperature dependent viscosity and thermal conductivity of steady incompressible laminar free convective (MHD) non-Newtonian Casson fluid flow over an exponentially stretching surface embedded in a thermally stratified medium are investigated. It is assumed that natural convection is induced by buoyancy and exponentially decaying internal heat generation across the space. The dim...
Spatially heterogeneous dynamics in supercooled glycerol over the temperature range 198 K (1.04Tg) 212 K (1.12Tg) is investigated using widefield single molecule (SM) fluorescence microscopy. Measurements are performed using three different perylenedicarboximide probes to investigate whether probe size and probe–host interactions affect breadth of heterogeneity reported in the glassy host by su...
Spatially heterogeneous dynamics in supercooled glycerol over the temperature range 198 K (1.04T(g))-212 K (1.12T(g)) is investigated using widefield single molecule (SM) fluorescence microscopy. Measurements are performed using three different perylenedicarboximide probes to investigate whether probe size and probe-host interactions affect breadth of heterogeneity reported in the glassy host b...
Dielectric measurements were carried out on aqueous solution of poly(diallyldimethylammonium chloride) (PDADMAC) with different concentrations at room temperature. Additionally, for selected solutions the temperature dependence of dielectric relaxation spectroscopy (DRS) was examined in the range of 5-70 degrees C. The dielectric relaxation in the order of around MHz was observed, and the diele...
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