Results 21 to 30 of about 543,986 (337)

Kinetics investigation of thin layer plums drying simultaneously pretreated with ultrasound and osmotic dehydration [PDF]

open access: yesPizhūhish va Nuāvarī dar ̒Ulūm va Sanāyi̒-i Ghaz̠āyī, 2015
Ultrasound is one of the emerging technologies that its application in drying foodstuffs aimed at reducing the time needed to process and improve the quality characteristics of dried product is growing day by day.
Rasoul Ghorban   +3 more
doaj   +1 more source

Characterization of Effective Diffusion within Viscoelastic Fluids with Elastic Instabilities

open access: yesFluids, 2022
We considered effective diffusion, characterized by magnitudes of effective diffusion coefficients, in order to quantify mass transport due to the onset and development of elastic instabilities.
Valerie Hietsch   +2 more
doaj   +1 more source

Heavy quark momentum diffusion coefficient during hydrodynamization via effective kinetic theory [PDF]

open access: yesEPJ Web of Conferences
In these proceedings, we compute the heavy quark momentum diffusion coefficient using QCD effective kinetic theory for a plasma going through the bottom-up thermalization scenario until approximate hydrodynamization.
Boguslavski Kirill   +4 more
doaj   +1 more source

Direct determination of the diffusion coefficient variation of coal based on Fick's law and model establishment

open access: yesMeitan kexue jishu, 2023
Gas diffusion ability directly affects gas exploitation, outburst risk, emission and content determination. In order to study the influence of stress, gas pressure and temperature on gas diffusion coefficient in coal, the gas diffusion coefficient in ...
Yujin QIN   +4 more
doaj   +1 more source

Impact of water vapor diffusion and latent heat on the effective thermal conductivity of snow [PDF]

open access: yesThe Cryosphere, 2021
Heat transport in snowpacks is understood to occur through the two processes of heat conduction and latent heat transport carried by water vapor, which are generally treated as decoupled from one another. This paper investigates the coupling between both
K. Fourteau   +3 more
doaj   +1 more source

The Steady-State Transport of Oxygen through Hemoglobin Solutions [PDF]

open access: yes, 1966
The steady-state transport of oxygen through hemoglobin solutions was studied to identify the mechanism of the diffusion augmentation observed at low oxygen tensions. A novel technique employing a platinum-silver oxygen electrode was developed to measure
Friedlander, S. K., Keller, K. H.
core   +2 more sources

Correlation for the Effective Gas Diffusion Coefficient in Carbon Paper Diffusion Media [PDF]

open access: yesEnergy & Fuels, 2009
The understanding of mass transport limitations in polymer electrolyte membrane (PEM) fuel cells is crucial in the research and progress of this technology. The structure of the components, specifically the as diffusion layer (GDL), of PEM fuel cells, is complex. Thus, for the purpose of simulating mass transport in the GDL, the effect of the structure
Zamel, Nada, Li, Xianguo, Shen, Jun
openaire   +3 more sources

Corrections to Einstein's relation for Brownian motion in a tilted periodic potential [PDF]

open access: yes, 2012
In this paper we revisit the problem of Brownian motion in a tilted periodic potential. We use homogenization theory to derive general formulas for the effective velocity and the effective diffusion tensor that are valid for arbitrary tilts. Furthermore,
B. Helffer   +35 more
core   +2 more sources

Determining the effective hydrogen diffusion coefficient in 100Cr6 [PDF]

open access: yesMaterials and Corrosion, 2020
AbstractIn the present study, the diffusion constant for hydrogen in hardened 100Cr6 was measured in permeation tests. The tests were conducted on samples of different thicknesses. The diffusivity of hydrogen was also measured in prestrained samples to study the influence of plastic strain on the diffusion rate.
Andreas Kailer   +3 more
openaire   +2 more sources

Effects of the variation of diffusion coefficients in the potentiometric stripping analysis [PDF]

open access: yesElectrochemical Science Advances, 2020
AbstractA simple steady state model of potentiometric stripping analysis and its derivative mode that are influenced by the film of adsorbed substance that hinders the diffusion of oxidant and metal ions is developed. The dependence of stripping time and the maximum in the derivative mode on the degree of inhibition is calculated.
openaire   +4 more sources

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