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Published in 2020 at "Mathematical Methods in the Applied Sciences"
DOI: 10.1002/mma.7118
Abstract: We extend the doubly degenerate Cahn–Hilliard (DDCH) models for isotropic surface diffusion, which yield more accurate approximations than classical degenerate Cahn–Hilliard (DCH) models, to the anisotropic case. We consider both weak and strong anisotropies and…
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Keywords:
degenerate diffuse;
diffusion;
anisotropic surface;
surface diffusion ... See more keywords
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Published in 2019 at "Surface and Interface Analysis"
DOI: 10.1002/sia.6608
Abstract: This study presents the diffusion of heterogeneous ternary (Cu‐Ag‐Zr) adatoms clusters on Ag(111) using molecular dynamics techniques which could be important for the surface phenomena's and helpful for the ternary cluster's growth and formation of…
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Keywords:
ternary adatoms;
study;
diffusion;
surface ... See more keywords
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Published in 2018 at "Communications in Mathematical Physics"
DOI: 10.1007/s00220-018-3200-2
Abstract: In this paper we prove short-time existence of a smooth solution in the plane to the surface diffusion equation with an elastic term and without an additional curvature regularization. We also prove the asymptotic stability…
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Keywords:
plane surface;
flow elasticity;
surface diffusion;
diffusion flow ... See more keywords
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Published in 2021 at "JOM"
DOI: 10.1007/s11837-021-04589-y
Abstract: The adsorption and diffusion of Mo and Nb adatoms on the $$\alpha$$ -Al2O3 (0001) surface were explored using density functional theory-based methods. Adsorption energies of Mo and Nb adatoms at minima sites on the surface…
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Keywords:
surface diffusion;
advanced manufacturing;
surface;
adsorption ... See more keywords
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Published in 2021 at "Biophysical journal"
DOI: 10.1016/j.bpj.2021.06.026
Abstract: Repetitive stimulation of excitatory synapses triggers molecular events required for signal transfer across neuronal synapses. It has been hypothesized that one of these molecular events, the diffusion of extrasynaptic AMPARs (i.e. the diffusion hypothesis), is…
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Keywords:
diffusion postsynaptic;
support surface;
lack support;
diffusion ... See more keywords
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Published in 2020 at "Chemosphere"
DOI: 10.1016/j.chemosphere.2020.128748
Abstract: Two new adsorbents, namely avocado-based hydrochar and LDH/bone-based biochar, were developed, characterized, and applied for adsorbing 2-nitrophenol. The pore volume and surface diffusion model (PVSDM) was numerically solved for different geometries and applied to interpret…
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Keywords:
adsorption;
biochar;
model;
hydrochar adsorption ... See more keywords
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Published in 2021 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2021.110525
Abstract: Abstract A discrete element model (DEM) capable of handling changing temperatures was newly developed for simulating sintering phenomena. The neck growth rate caused by surface diffusion was determined using a finite-difference model (FDM). The developed…
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Keywords:
surface diffusion;
caused surface;
diffusion;
dem ... See more keywords
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Published in 2017 at "Chemical Physics Letters"
DOI: 10.1016/j.cplett.2017.04.018
Abstract: Abstract Molecular dynamics simulations have been performed in both the ab initio and classical mechanics frameworks of 5,6,7-trithiapentacene-13-one (TTPO) molecules on flat Au(1 1 1) surfaces. Results show new surface diffusion characteristics including a strong preference for…
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Keywords:
diffusion;
novel surface;
diffusion characteristics;
surface diffusion ... See more keywords
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Published in 2021 at "Fuel"
DOI: 10.1016/j.fuel.2020.118974
Abstract: Abstract Adsorbed-phase surface diffusion has been recognized as an important controlling factor on gas apparent permeability in micropores and smaller mesopores. However, for the estimation of surface diffusion coefficients of shales, the commonly used empirical…
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Keywords:
surface;
gas;
permeability;
surface diffusion ... See more keywords
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Published in 2019 at "Heliyon"
DOI: 10.1016/j.heliyon.2019.e02143
Abstract: Surface diffusivity in adsorption and ion exchange processes is probably the most important property studied expensively in the literature but some aspects, especially its dependence on solid phase concentration, is still an open subject to…
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Keywords:
diffusion;
surface;
concentration;
surface diffusion ... See more keywords
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Published in 2021 at "Materials Letters"
DOI: 10.1016/j.matlet.2020.129036
Abstract: Abstract We made head-shaped Cu-Sn solder joints with diameters about 10 μm, 20 μm, and 50 μm and reflowed the samples at 240 oC, 260 oC, and 280 oC for 60 s to 600 s.…
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Keywords:
controlled reaction;
diffusion;
diffusion controlled;
small size ... See more keywords