Results 21 to 30 of about 482,455 (269)
Surface Diffusion Phenomena in Gaseous Diffusion, (III) [PDF]
Journal of Nuclear Science and Technology, 1963 The surface diffusion in localized monolayers is discussed. The authors regard the surface diffusion phenomena as the random walk of the so-called “hopping molecules” on a solid surface. It is assumed that when a molecule adsorbed in a site jumps to one of the nearest neighbor sites the molecule can jump to any one of them whether it is vacant or not ...
Kunio HIGASHI, Hiroo ITO, Jun OISHI
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Thermal Grooving by Surface Diffusion: a Review of Classical Thermo-Kinetics Approach
Hittite Journal of Science and Engineering, 2017 I n polycrystalline materials wherever a grain boundary intersects a free surface and whenever the topographic variation associated with the atomic motion is favored by total free energy dissipation, the material surface grooves.
Oncu Akyildiz, Tarik Omer Ogurtani
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The robust finite-volume schemes for modeling nonclassical surface reactions
Nonlinear Analysis, 2018 A coupled system of nonlinear parabolic PDEs arising in modeling of surface reactions with piecewise continuous kinetic data is studied. The nonclassic conjugation conditions are used at the surface of the discontinuity of the kinetic data.
Raimondas Čiegis +2 more
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Фізика і хімія твердого тіла, 2022 In this study, an attempt was made to quantify the contribution of the surface diffusion process to mass transfer during electrochemical deposition of metals.
A.I. Nesterenko +2 more
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Multiscale Apparent Permeability Model of Shale Nanopores Based on Fractal Theory
Energies, 2019 Based on fractal geometry theory, the Hagen−Poiseuille law, and the Langmuir adsorption law, this paper established a mathematical model of gas flow in nano-pores of shale, and deduced a new shale apparent permeability model.
Qiang Wang +5 more
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Area confined position control of molecular aggregates
New Journal of Physics, 2016 We report an experimental approach to control the position of molecular aggregates on surfaces by vacuum deposition. The control is accomplished by regulating the molecular density on the surface in a confined area.
Hong Wang +6 more
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Metals, 2019 In this paper, the sintering neck growth process of metal fibers under the surface diffusion mechanism is simulated by using the Lattice Boltzmann method (LBM).
Houping Dai +2 more
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Mechanism of Spontaneous Surface Modifications on Polycrystalline Cu Due to Electric Fields
Micromachines, 2021 We present a credible mechanism of spontaneous field emitter formation in high electric field applications, such as Compact Linear Collider in CERN (The European Organization for Nuclear Research).
Kristian Kuppart +6 more
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Sediment deposition model of grading electrode in water cooling circuit of HVDC converter valve
The Journal of Engineering, 2019 The converter valve is one of the core equipment in high-voltage direct current (HVDC) system, and the cooling system is often used for heat dissipation.
Xiaoning Song +5 more
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Diffusion on curved, periodic surfaces [PDF]
Physical Review E, 1999 We present a simulation algorithm for a diffusion on a curved surface given by the equation phi(r)=0. The algorithm is tested against analytical results known for diffusion on a cylinder and a sphere, and applied to the diffusion on the P, D, and G periodic nodal surfaces.
Burdzy, Krzysztof +3 more
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