Results 261 to 270 of about 8,075,923 (324)
Transport of degradable contaminants in a composite vertical cut-off wall under nonlinear adsorption conditions. [PDF]
Sci RepLin H, Ouyang S, Huang J, Li Q.
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Diffusion Tensor Imaging-Based Glymphatic Dysfunction Assessments in Migraine Syndromes: Mechanisms and Diagnostic Implications. [PDF]
BiomedicinesLai E +4 more
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Single-Molecule and Super-Resolution Diffusion Quantification Unveils Reversible Enhancement of Lipid-Membrane Diffusivity by General Anesthetics. [PDF]
ACS NanoJepson T, Jin H, Wu CY, Li W, Xu K.
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Revisiting the interpretation of axon diameter mapping using higher-order signal representations. [PDF]
Imaging Neurosci (Camb)Karat BG +6 more
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A technique to create hydrogels with tethered concentration gradients of molecules <i>in vitro</i>.
Soft MatterO'Shea TC, Salem A, Schultz KM.
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Diffusive Skin Effect in Zeolites
The Journal of Physical Chemistry Letters, 2022Effective contact and collision between reactants and active sites are essential for heterogeneous catalysis. Herein, we investigated molecular diffusion in more than 200 kinds of zeolites, and an intriguing "diffusive skin effect" was observed, whereby molecules migrated along the pore walls of zeolites (i.e., diffusion trajectories) because of the ...
Wei Rao +8 more
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Effective diffusion constant for inhomogeneous diffusion
Journal of Physics A: Mathematical and General, 1993Summary: We consider the problem of determining analytically the effective diffusion constant \(D_{\text{eff}}\) for diffusion in an inhomogeneous medium, described by the diffusion equation \(\partial_ t P = \partial_ x[D(x) \partial_ x P]\) with a position-dependent diffusion coefficient \(D(x)\).
Revathi, S., Balakrishnan, V.
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SIAM Journal on Numerical Analysis, 2019
In this paper, we develop efficient stochastic structure-preserving schemes to compute the effective diffusivity for particles moving in random flows.
Junlong Lyu +3 more
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In this paper, we develop efficient stochastic structure-preserving schemes to compute the effective diffusivity for particles moving in random flows.
Junlong Lyu +3 more
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Thin Solid Films, 1984
Abstract On the basis of the fact that the mean square displacement of atoms in the vicinity of the surface is higher than that in the bulk, a thin film diffusion size effect is introduced. In films of the order of 100 A thick it leads to a marked increase in the diffusivity as the film thickness decreases.
V.B. Sapozhnikov, M.G. Goldiner
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Abstract On the basis of the fact that the mean square displacement of atoms in the vicinity of the surface is higher than that in the bulk, a thin film diffusion size effect is introduced. In films of the order of 100 A thick it leads to a marked increase in the diffusivity as the film thickness decreases.
V.B. Sapozhnikov, M.G. Goldiner
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Journal of Physical Chemistry C, 2019
Technical zeolite bodies with additional porosity have been prepared with the intention to improve effective diffusivity.
Rogéria Bingre +4 more
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Technical zeolite bodies with additional porosity have been prepared with the intention to improve effective diffusivity.
Rogéria Bingre +4 more
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