Results 41 to 50 of about 445,534 (289)

Using MHD free convection to receive the generated heat by an elliptical porous media

open access: yesCase Studies in Thermal Engineering, 2022
In many chemical processes, porous medium is usually used as a catalyst and mixing of reactants that may generate heat in thermal chemical processes.
Gongxing Yan   +4 more
doaj   +1 more source

Dynamics of osmosis in a porous medium [PDF]

open access: yesRoyal Society Open Science, 2014
We derive from kinetic theory, fluid mechanics and thermodynamics the minimal continuum-level equations governing the flow of a binary, non-electrolytic mixture in an isotropic porous medium with osmotic effects. For dilute mixtures, these equations are linear and in this limit provide a theoretical basis for the widely used semi-empirical
Silvana S. S. Cardoso   +1 more
openaire   +6 more sources

Porous Medium Equation with Nonlocal Pressure [PDF]

open access: yes, 2018
We provide a rather complete description of the results obtained so far on the nonlinear diffusion equation $u_t=\nabla\cdot (u^{m-1}\nabla (- )^{-s}u)$, which describes a flow through a porous medium driven by a nonlocal pressure. We consider constant parameters $m>1$ and $02$, and the asymptotic behavior of solutions when $N=1$. The cases $m = 1$
Stan, Diana   +2 more
openaire   +2 more sources

Equilibrium phase transitions in a porous medium [PDF]

open access: yesPhysical Review B, 1996
Static critical phenomena of a three-dimensional Ising model confined in a porous medium made by spinodal decomposition have been studied using large-scale Monte Carlo simulations. We thus examine the influence of the geometry of Vycor-like materials on phase transitions.
MacFarland, T.   +2 more
openaire   +4 more sources

Review of Foam with Novel CO2-Soluble Surfactants for Improved Mobility Control in Tight Oil Reservoirs

open access: yesMolecules
CO2-soluble surfactant foam systems have gained significant attention for their potential to enhance oil recovery, particularly in tight oil reservoirs where conventional water-soluble surfactants face challenges such as poor injectability and high ...
Fajun Zhao   +7 more
doaj   +1 more source

A framework for computing effective boundary conditions at the interface between free fluid and a porous medium

open access: yes, 2016
Interfacial boundary conditions determined from empirical or ad-hoc models remain the standard approach to model fluid flows over porous media, even in situations where the topology of the porous medium is known.
Bagheri, Shervin, Lācis, Uǧis
core   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Simulation of self-ignition flame suppression for high-pressure hydrogen release using porous media

open access: yesYou-qi chuyun
ObjectiveTo enhance the safety of hydrogen use, the impact of porous media on the propagation dynamics and suppression of self-ignition flames during hydrogen release in pipes was investigated. MethodsA numerical model of a high-pressure hydrogen release
Haoran YANG, Gan CUI
doaj   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

open access: yesFEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura   +2 more
wiley   +1 more source

Pressure Wave Interaction with Fractured Porous Zone in Porous Medium

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки
The propagation of a pressure wave in a porous medium with a fractured porous zone was numerically investigated. The study used a two-velocity model of a porous medium and a three-velocity model of a fractured porous medium. The problem was examined in a
A. A. Gubaidullin   +2 more
doaj   +1 more source

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