Articles with "effective medium" as a keyword



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Stress-dependent permeability and wave dispersion in tight cracked rocks: Experimental validation of simple effective medium models

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Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2017jb014147

Abstract: We experimentally assess the impact of microstructure, pore fluid and frequency on wave velocity, wave dispersion and permeability in a thermally cracked Carrara marble under effective pressures up to 50 MPa. The cracked rock is… read more here.

Keywords: wave dispersion; dependent permeability; permeability; crack ... See more keywords

Effect of crack direction around laboratory-scale craters on material bulk permittivity

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Published in 2019 at "Icarus"

DOI: 10.1016/j.icarus.2018.09.030

Abstract: Abstract The impact of meteorites forms craters on celestial surfaces, below which cracks are formed. Lunar geological conditions around such craters have been estimated based on permittivity surveys by radar exploration. The relationship between density… read more here.

Keywords: effective medium; bulk permittivity; crack direction; permittivity ... See more keywords
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Universal effective medium theory to predict the thermal conductivity in nanostructured materials

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Published in 2022 at "International Journal of Heat and Mass Transfer"

DOI: 10.1016/j.ijheatmasstransfer.2021.122040

Abstract: S. Aria Hosseini, Sarah Khanniche, P. Alex Greaney, ∗ and Giuseppe Romano † Department of Mechanical Engineering, University of California, Riverside, 900 University Avenue, Riverside, CA 92521, USA Department of Chemical Engineering, Massachusetts Institute of… read more here.

Keywords: universal effective; medium theory; predict thermal; thermal conductivity ... See more keywords
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Particle-size distribution modified effective medium theory and validation by magneto-dielectric Co-Ti substituted BaM ferrite composites

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Published in 2018 at "Journal of Magnetism and Magnetic Materials"

DOI: 10.1016/j.jmmm.2018.01.013

Abstract: Abstract This letter reports an extended effective medium theory (EMT) including particle-size distribution functions to maximize the magnetic properties of magneto-dielectric composites. It is experimentally verified by Co-Ti substituted barium ferrite (BaCoxTixFe12−2xO19)/wax composites with specifically… read more here.

Keywords: particle size; medium theory; magneto dielectric; size ... See more keywords
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Microtwist elasticity: A continuum approach to zero modes and topological polarization in Kagome lattices

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Published in 2020 at "Journal of The Mechanics and Physics of Solids"

DOI: 10.1016/j.jmps.2020.104107

Abstract: Abstract The topologically polarized isostatic lattices discovered by Kane and Lubensky (2014, Nat. Phys. 10, 39–45) challenged the standard effective medium theories used in the modeling of many truss-based materials and metamaterials. As a matter… read more here.

Keywords: zero modes; effective medium; theory; microtwist elasticity ... See more keywords
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Quantification of gas hydrate saturation and morphology based on a generalized effective medium model

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Published in 2020 at "Marine and Petroleum Geology"

DOI: 10.1016/j.marpetgeo.2019.104166

Abstract: Abstract Numerous models have been developed for prediction of gas hydrate saturation based on the microstructural relationship between gas hydrates and sediment grains. However, quantification of hydrate saturation and morphology from elastic properties has been… read more here.

Keywords: gas; morphology; model; hydrate ... See more keywords
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Concentration-dependent transport in finite sized composites: Modified effective medium theory

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Published in 2018 at "Journal of Membrane Science"

DOI: 10.1016/j.memsci.2017.12.058

Abstract: Abstract Current models for transport in dispersions, while grounded in well-established effective medium theory (EMT), rely on the assumption of uniformity of the driving force. As consequence, theoretical approaches cannot accommodate driving force inhomogeneities as… read more here.

Keywords: phase; medium theory; theory; transport ... See more keywords
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Derivation and solution of effective medium equations for bulk heterojunction organic solar cells

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Published in 2017 at "European Journal of Applied Mathematics"

DOI: 10.1017/s0956792516000541

Abstract: A drift-diffusion model for charge transport in an organic bulk heterojunction solar cell, formed by conjoined acceptor and donor materials sandwiched between two electrodes, is formulated. The model accounts for (i) bulk photogeneration of excitons,… read more here.

Keywords: acceptor donor; model; geometry; micro structure ... See more keywords

Hertz‐Mindlin Theory of Contacting Grains and the Effective‐Medium Approximation for the Permeability of Deforming Porous Media

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Published in 2019 at "Geophysical Research Letters"

DOI: 10.1029/2019gl083727

Abstract: Estimating flow and transport properties of porous media that undergo deformation as a result of applying an external pressure or stress is important to a wide variety of processes, ranging from shale formations into which… read more here.

Keywords: mindlin theory; effective medium; medium; porous media ... See more keywords
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Effective medium theory to the description of plasmonic resonances: Role of Au and Ti nanoparticles embedded in MoO3 thin films

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Published in 2020 at "Scientific Reports"

DOI: 10.1038/s41598-020-62706-4

Abstract: The growing interest in functional transition metal oxides for efficient energy consumption or in the bio-sensing process; indicates that is necessary to develop a new theoretical method that describes experiments. This article presents a new… read more here.

Keywords: modulation; moo3; medium theory; thin films ... See more keywords
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Effective medium theory for bcc metals: electronically non-adiabatic H atom scattering in full dimensions

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Published in 2022 at "Physical Chemistry Chemical Physics"

DOI: 10.1039/d2cp00087c

Abstract: We report a newly derived Effective Medium Theory (EMT) formalism for bcc metals and apply it for the construction of a full-dimensional PES for H atoms interacting with molybdenum (Mo) and tungsten (W). We construct… read more here.

Keywords: bcc metals; atom scattering; effective medium; medium theory ... See more keywords