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Dependence of the broad frequency dielectric spectra of colloidal polystyrene particle suspensions on the difference between the counterion and co-ion diffusion coefficients
(Academic Press Inc Elsevier Science, 2006-12)
Dielectric properties of four suspensions of spherical polystyrene particles were measured at 25 ◦ C over a broad frequency range extending from 100 Hz to 10 MHz, using a HP 4192 A Impedance Analyzer. The instrument was ...
Lanthanide transport in stabilized zirconias: Interrelation between ionic radius and diffusion coefficient
(American Institute of Physics, 2004-06)
The diffusion of all stable lanthanides in calcia stabilized zirconia (CSZ) and in yttria stabilized zirconia (YSZ) was measured. Lanthanide migration enthalpies were calculated using the Mott-littleton approach. The results ...
Diffusive Drying Kinetics in Wheat, Part 1: Potential for a Simplified Analytical Solution
(Academic Press, 2001-12)
Mathematical models for kernel drying predict grain-air mass and heat transfer rates, and the faster and more accurately they can do this the better, especially in simulation-based design and control. Few publications used ...
Diffusion of nitrite and nitrate salts in pork tissue in the presence of sodium chloride
(Wiley Blackwell Publishing, Inc, 2002-08)
The objective of the present work was to analyze the effect of NaCl concentration on the diffusion coefficients of NaNO2 and KNO3 in pork tissue using unsteady techniques. Concentrations of nitrite and nitrate as a function ...
Superficial self-diffusion coefficient in Ih-ICE
(Masaryk University, 2020-07)
The evolution of the grain boundary groove in a bicrystalline ice sample was studied in this work. The groove is formed by the intersection of the grain boundary with the free surface. The bicrystalline ice sample had an ...
The Shannon entropy as a measure of diffusion in multidimensional dynamical systems
(Springer, 2018-04)
In the present work, we introduce two new estimators of chaotic diffusion based on the Shannon entropy. Using theoretical, heuristic and numerical arguments, we show that the entropy, S, provides a measure of the diffusion ...
Self Diffusivity of n-Dodecane and Benzothiophene in ZSM-5 Zeolites: Its Significance for a New Catalytic Light Diesel Desulfurization Process
(Berkeley Electronic Press, 2016-06-13)
This study provides theoretical support to a recent promising ZSM5 catalyst used for the selective desulfurization of light diesel type compounds (Al-Bogami and de Lasa 2013; Al-Bogami, Moreira, and de Lasa 2013). With ...
Mean-field approach to diffusion with interaction: Darken equation and numerical validation
(American Physical Society, 2018-08-22)
A mean-field theory for diffusion with interaction was introduced in Phys. Rev. E 92, 062118 (2015)PLEEE81539-375510.1103/PhysRevE.92.062118. Interaction effects are represented with a mean-field potential. Here we show ...
On the chaotic diffusion in multidimensional Hamiltonian systems
(Springer, 2018-01)
We present numerical evidence that diffusion in the herein studied multidimensional near-integrable Hamiltonian systems departs from a normal process, at least for realistic timescales. Therefore, the derivation of a ...
Monte Carlo simulation with fixed steplength for diffusion processes in nonhomogeneous media
(Academic Press Inc Elsevier Science, 2013-04)
Monte Carlo simulation is one of the most important tools in the study of diffusion processes. For constant diffusion coefficients, an appropriate Gaussian distribution of particle's steplengths can generate exact results, ...