Results 21 to 30 of about 333,521 (317)
VERIFICATION OF THE DIFFUSION AND TRANSPORT SOLVERS WITHIN DIF3D FOR 3D HEXAGONAL GEOMETRIES [PDF]
EPJ Web of Conferences, 2021 The DIF3D code (DIFfusion 3D) has been a workhorse of fast reactor analysis work at Argonne National Laboratory for over 40 years. DIF3D was primarily built in the late 1970s as a three-dimensional multigroup diffusion equation solver operating on semi ...
Nelson A. G., Smith M. A., Heidet F.
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Material barriers to diffusive and stochastic transport [PDF]
Proceedings of the National Academy of Sciences, 2018 Significance Observations of tracer transport in fluids generally reveal highly complex patterns shaped by an intricate network of transport barriers and enhancers. The elements of this network appear to be universal for small diffusivities, independent of the tracer and its initial distribution.
George Haller +2 more
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Quantifying matrix diffusion effect on solute transport in subsurface fractured media [PDF]
Hydrology and Earth System SciencesMatrix diffusion is an important process for solute transport in subsurface fractured media. The effect of matrix diffusion on solute transport depends on various fracture and matrix parameters as well as the underlying temporal-spatial scales.
H. Wu, H. Wu, Y. Wei, K. Zhang
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Deterministic ratchets: Route to diffusive transport [PDF]
Physical Review E, 2002 The rectification efficiency of an underdamped ratchet operated in the adiabatic regime increases according to a scaling current-amplitude curve as the damping constant approaches a critical threshold; below threshold the rectified signal becomes extremely irregular and eventually its time average drops to zero.
M. Borromeo +2 more
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Membranes, 2022 In many applications of hydrated, dense polymer membranes—including fuel cells, desalination, molecular separations, electrolyzers, and solar fuels devices—the membrane is challenged with aqueous streams that contain multiple solutes.
Antara Mazumder +3 more
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Disorder Induced Diffusive Transport in Ratchets [PDF]
Physical Review Letters, 2000 10 pages, 4 EPS figures; submitted to Phys.
Popescu, M. N. +3 more
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Petroleum Science, 2019 Different from the conventional gas reservoirs, gas transport in nanoporous shales is complicated due to multiple transport mechanisms and reservoir characteristics.
Qi Zhang +4 more
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Frontiers in Astronomy and Space Sciences, 2023 In the first part of this work, we highlighted a drift-diffusion equation capable of resolving the magnetic local time dimension when describing the effects of trapped particle transport on radiation belt intensity.
Solène Lejosne +2 more
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Tutorial on diffuse light transport
Journal of Biomedical Optics, 2008 A tutorial introduction to diffuse light transport is presented. The basic analytic equations of time-resolved, steady-state and modulated light transport are introduced. The perturbation method for handling slight heterogeneities in optical properties is outlined. The treatment of boundary conditions such as an air/tissue surface is described.
Steven L, Jacques, Brian W, Pogue
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Fractional Transport of Photons in Deterministic Aperiodic Structures
Scientific Reports, 2017 The propagation of optical pulses through primary types of deterministic aperiodic structures is numerically studied in time domain using the rigorous transfer matrix method in combination with analytical fractional transport models.
Luca Dal Negro, Sandeep Inampudi
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