This article involves the study and analysis of fully developed flow a magnetorheological fluid through non-isotropic porous medium under effect an external, uniform, transversal magnetic field. Permeability is taken as exponential distribution function transverse direction. The Darcy-Brinkman-Lapwood-Lorentz equation for in media has been used solved non-slip boundary conditions by Modified Ho...

Compressional waves in heterogeneous permeable media suffer attenuation fiom both scattering and induced pore scale flow of the viscous saturating fluid. Stochastic medium theories are used to describe scattering on multiple length scales, and are validated by numerical examples using a dual length scale sedimentary sequence taken from a producing oil reservoir. The highly variable permeability...

An analysis has been carried out to obtain the free convective heat and mass transfer characteristics of an incompressible MHD viscoelastic fluid flow immersed in a porous medium of variable permeability bounded by an infinite porous vertical plate in slip flow regime in the presence of a transverse magnetic field with heat source and radiation effects. The permeability of the porous medium dec...

The effect of non-uniform heat generation on an unsteady MHD laminar boundary layer flow of viscous, incompressible fluid over a vertical stretching plate embedded in a sparsely packed porous medium is investigated numerically. The flow in the porous medium is governed by Brinkman-Forchheimer extended Darcy model. The variation of porosity, permeability and thermal conductivity is assumed. By a...

The permeability of gelatin-coated collodion membranes, as measured by the flow of water or of dilute solutions through the membranes, has been found to vary with the pH of the solutions. The permeability is greatest near the isoelectric point of the protein; with increasing concentration of either acid or alkali it decreases, passes through a minimum, and then increases. These variations with ...

Assessing the human placental barrier permeability of drugs is very important to guarantee drug safety during pregnancy. Quantitative structure-activity relationship (QSAR) method was used as an effective assessing tool for the placental transfer study of drugs, while in vitro human placental perfusion is the most widely used method. In this study, the partial least squares (PLS) variable selec...

Permeability is an important aspect of sediment remediation. It well-known that oyster shells can be used for remediation, however the influence pyrolysis temperature on permeability remains unknown. In this study, we examined and remediation using crushed less than 5 mm in size were pyrolyzed at 350 °C (POS350) 600 (POS600) six hours. Based results variable head test, POS600 has greater POS350...

accurate permeability estimation has always been a concern in determining flow units, assigning appropriate capillary pressure andrelative permeability curves to reservoir rock types, geological modeling, and dynamic simulation.acoustic method can be used as analternative and effective tool for permeability determination. in this study, a four-step approach is proposed for permeability estimati...

In this paper we continue the investigation of the Maxwell-Landau-Lifschitz and Maxwell-Bloch equations. In particular we extend some previous results about the Cauchy problem and the quasi-stationary limit to the case where the magnetic permeability and the electric permittivity are variable.