Results 31 to 40 of about 17,643,790 (249)

Natural convection and the evolution of a reactive porous medium [PDF]

, 2011
We describe a mathematical model of buoyancy-driven flow and solute transport in a saturated porous medium, the porosity and permeability of which evolve through precipitation and dissolution as a mineral is lost or gained from the pore fluid. Imposing a
Ritchie, Lindsey Thomson, Pritchard, David   +1 more
core   +4 more sources

New Understanding of Transient Pressure Response in the Transition Zone of Oil-Water and Gas-Water Systems

Geofluids, 2018
Well test analysis requires a preselected model, which relies on the context input and the diagnostic result through the pressure logarithmic derivative curve.
Wenbin Xu, Zhihui Liu, Jie Liu, Yongfei Yang   +3 more
doaj   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

FEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell, Thomas Walther, Egbert Hoiczyk   +2 more
wiley   +1 more source

Effect of solid thermal conductivity and particle-particle contact on effective thermodiffusion coefficient in porous media [PDF]

, 2011
Transient mass transfer associated to a thermal gradient through a saturated porous medium is studied experimentally and theoretically to determine the effect of solid thermal conductivity and particle-particle contact on thermodiffusion processes.
Davarzani, Hossein, H. Davarzani, Quintard, Michel, M. Quintard, M. Marcoux, Marcoux, Manuel   +5 more
core   +1 more source

Impact of recrystallization cycles on drying of salt contaminated porous media [PDF]

, 2015
COMInternational ...
Derluyn, Hannelore, Shahidzadeh, Noushine, de Miranda, Stefano, Cnudde, V., Molari, L., Desarnaud, Julie, Molari, Luisa, Desarnaud, J., Shahidzadeh, N., Cnudde, Veerle, Miranda, S.,, Derluyn, H.   +11 more
core   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

FEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

Steady-State Transitions in Ordered Porous Media

, 2023
Previously performed experiments on flow through an ordered porous media cell with tomographic particle image velocimetry reveal a complex three-dimensional steady-state flow pattern.
Larsson, I. A. Sofia,, J. G. I. Hellström, Lundström, T. Staffan,, Forslund, Tobias O.M.,, Larsson, I. A. Sofia, Hellström, J. Gunnar I.,, T. S. Lundström, Lundström, T. Staffan, T. O. M. Forslund, I. A. S. Larsson, Forslund, Tobias O.M., Hellström, J. Gunnar I.   +11 more
core   +1 more source

Evaluation of a Volume-Averaged Species Transport Model with Micro–Macro Coupling for Breakthrough Curve Prediction

Molecules
In porous water filters, the transport and entrapment of contaminants can be modeled as a classic mass transport problem, which employs the conventional convection–dispersion equation to predict the transport of species existing in trace amounts.
Parham Mobadersani, Naine Tarun Bharat, Krishna M. Pillai   +2 more
doaj   +1 more source

Pore-scale numerical simulation of supercritical CO2-brine two-phase flow based on VOF method

Natural Gas Industry B, 2023
CO2 capture and storage technology is favorable for the reduction of CO2 emissions. In recent years, a great number of research achievements have been obtained on CO2 geological storage from nano scale to oil/gas reservoir scale, but most studies only ...
Yongfei Yang, Jinlei Wang, Jianzhong Wang, Qi Zhang, Jun Yao   +4 more
doaj   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

FEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source