Results 261 to 270 of about 7,555,861 (292)
Some of the next articles are maybe not open access.
Nonscaling calculation of the effective diffusion coefficient in periodic channels
The Journal of Chemical Physics, 2017An algorithm calculating the effective diffusion coefficient D(x) in 2D and 3D channels with periodically varying cross section along the longitudinal coordinate x is presented. Unlike other methods, it is not based on scaling of the transverse coordinates, or the smallness of the width of the channel. The result is expressed as an integral of specific
openaire +2 more sources
Effective diffusion coefficient of sucrose in calcium alginate gel
Enzyme and Microbial Technology, 1990The effective diffusion coefficient of sucrose in 5% calcium alginate gel containing 41.6 g.d.c. l-1. Saccharomyces cerevisiae was investigated. Both free and immobilized S. cerevisiae in 0.175 cm and 0.3 cm diameter particles were used and the reactions were achieved in a medium containing 100 g l-1 sucrose and 0.05 M CaCl2.
openaire +2 more sources
?Uphill? hydrogen diffusion effects and hydrogen diffusion coefficients in palladium
International Journal of Hydrogen Energy, 1997Information concerning measurements of hydrogen diffusion coefficients over α- and β-phase ranges of hydrogen content in the palladium/hydrogen system is summarized. The utilization of palladium as a hydrogen purification membrane has constituted a background for observations of “uphill” hydrogen diffusion effects.
openaire +1 more source
Effective Diffusion Coefficients in Calcium Alginate Gel
Biotechnology Progress, 1987AbstractThe effective diffusion coefficient of glucose, De in calcium alginate gel determined at 35°C by two different methods gave values which, on average, were at least 24% less than in water. Assessment of the effect of glucose concentration on De seems to indicate that De increased with decreasing glucose concentration at very low concentrations ...
openaire +1 more source
Effect of electrolytes on the self-diffusion coefficient of water
Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 1976The self-diffusion coefficient of water in aqueous solutions of various electrolytes at a concentration of 0.1 mol dm–3 has been measured at 25°C by using the diaphragm cell technique with deuterium as tracer. The data are correlated with the viscosity B-coefficients and the entropies of hydration.
openaire +1 more source
Effective time of a diffusion source in a pack cementation process on the AZ91D magnesium alloy
Journal of Materials Research and Technology, 2023Dongzhu Lu, Yanliang Huang
exaly
Modeling and experiment for effective diffusion coefficient of gas in water-saturated coal
Fuel, 2021Leilei Si, Jianping Wei
exaly
CHLORIDE EFFECTIVE DIFFUSION COEFFICIENT OF CONCRETE
2019Doctor of Philosophy (PhD)
openaire +1 more source