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Seismic wave attenuation and dispersion due to wave-induced fluid flow in rocks with strong permeability fluctuations
(Acoustical Society of America Institute of Physics, 2013-06)
Oscillatory fluid movements in heterogeneous porous rocks induced by seismic waves cause dissipation of wave field energy. The resulting seismic signature depends not only on the rock compressibility distribution, but also ...
Effects of murta (Ugni molinae Turcz) extract on gas and water vapor permeability of carboxymethylcellulose-based edible films
(Elsevier Science, 2007-10)
The effect of murta (Ugni molinae Turcz) leaves extract on water vapor permeability (WVP) and gas permeability (GP) of carboxymethylcellulose (CMC)-based films was studied. Two ecotypes of murta leaves “Soloyo Grande” (SG) ...
Porosity and permeability in volcanic rocks: A case study on the Serie Tobífera, South Patagonia, Argentina
(Elsevier Science, 2004-04)
The Middle to Late Jurassic Serie Tobífera belongs to the Chon-Aike Province and extends all over Patagonia and the Antarctic Peninsula. It consists largely of ignimbrites, epiclastics and rhyolitic lavas and was considered ...
A Fractal Model for Predicting Water and Air Permeabilities of Unsaturated Fractured Rocks
(Springer, 2011-12)
A fractal model to predict water and air permeabilities of unsaturated fractured rocks is presented. The derivation of the model is based on physical and geometric concepts. The pattern of the fracture network is assumed ...
Experimental assessment on the performance of hot wire anemometry in and around a permeable medium by comparison with Particle Image Velocimetry
(Elsevier, 2021-04)
The air flow through a test section partially obstructed by a permeable array of wires was measured simultaneously by Hot Wire Anemometry (HWA) and Particle Image Velocimetry. The objective ofthe study was the assessment ...
Artificial lipid membrane permeability method for predicting intestinal drug transport: Probing the determining step in the oral absorption of sulfadiazine; Influence of the formation of binary and ternary complexes with cyclodextrins
(Springer, 2018-02)
We propose an in vitro permeability assay by using a modified lipid membrane to predict the in vivo intestinal passive permeability of drugs. Two conditions were tested, one with a gradient pH (pH 5.5-donor/pH 7.4-receptor) ...
Dynamic permeability functions for partially saturated porous media
(Oxford University Press, 2020-02-04)
While the frequency-dependence of permeability under fully saturated conditions has been studied for decades, the corresponding characteristics of partially saturated porous media remain unexplored. Notably, it is not clear ...
A Python implementation in graphic processing unit of a lattice Boltzmann model for unstable three-dimensional flows in immersed permeable media
(American Institute of Physics, 2020-12)
The implementation of a lattice Boltzmann model for three-dimensional permeable media with localized drag forces is presented. The model was previously introduced for two-dimensional geometries and follows the basics of ...
Beta-cyclodextrin and permeability to water in the bladder of Bufo arenarum
(National Research Council Canada-NRC Research Press, 2011-05)
We measured the effect of β-cyclodextrin (BCD, a cholesterol scavenger) on water flow across the isolated toad bladder exposed to an osmotic gradient (Jw) by a gravimetric technique. BCD, when present in the solution bathing ...
Hopanoids, like sterols, modulate dynamics, compaction, phase segregation and permeability of membranes
(Elsevier Science, 2019-12)
In recent years, hopanoids, a group of pentacyclic compounds found in bacterial membranes, are in the spotlight since it was proposed that they induce order in lipid membranes in a similar way cholesterol do in eukaryotes, ...