نتایج جستجو برای: modified extended nernst planck equation

تعداد نتایج: 689309  

Journal: :physical chemistry and electrochemistry 0
p khorramzadeh department of chemistry, marvdasht branch, islamic azad university, marvdasht, iran nima karachi department of chemistry, marvdasht branch, islamic azad university, marvdasht, iran seyyed mostafa hosseini young researchers and elite club, marvdasht branch, islamic azad university, marvdasht, iran

an analytical equation of state has been previously modified by papari et al. for representing the volumetric properties of molecular fluids. however the performance of that eos has not been yet well investigated for refrigerant fluids. this study extended that equation to 19 liquid refrigerants to predict their densities at isothermal and saturated states. two temperature-independent parameter...

Journal: :Cement and Concrete Research 2022

This study established a reactive transport model (RTM) for saturated cement-based materials based on multi-ionic through an uncharged, ‘free water’ and charged, ‘the electrical double layer’ coupled with chemical equilibrium interaction between pore solution solid phase. A set of modified Poisson-Nernst-Planck equations, including the effect temperature, property, structure changes, have been ...

Journal: :SIAM J. Math. Analysis 2007
Bob Eisenberg Weishi Liu

Ionic channels and semiconductor devices use atomic scale structures to control macroscopic flows from one reservoir to another. The onedimensional steady-state Poisson-Nernst-Planck (PNP) system is a useful representation of these devices but experience shows that describing the reservoirs as boundary conditions is difficult. We study the PNP system for two types of ions with three regions of ...

2015
DAVID KINDERLEHRER XIANG XU

The Poisson-Nernst-Planck system of equations used to model ionic transport is interpreted as a gradient flow for the Wasserstein distance and a free energy in the space of probability measures with finite second moment. A variational scheme is then set up and is the starting point of the construction of global weak solutions in a unified framework for the cases of both linear and nonlinear dif...

Journal: :Journal of Membrane Science 2021

Electrodialysis, reverse electrodialysis, and related electrochemical processes are increasingly important technologies for water purification renewable energy generation storage. The electrical efficiency of these is directly to the permselectivity ion exchange membranes (IEMs) – defined as extent which membrane permits passage counter-ions (ions opposite charge membrane, e.g., cations a catio...

Journal: :Communications in Mathematical Sciences 2015

Journal: :Journal of computational physics 2011
Qiong Zheng Duan Chen Guo-Wei Wei

The Poisson Nernst-Planck (PNP) theory is a simplified continuum model for a wide variety of chemical, physical and biological applications. Its ability of providing quantitative explanation and increasingly qualitative predictions of experimental measurements has earned itself much recognition in the research community. Numerous computational algorithms have been constructed for the solution o...

Journal: :Journal of Computational and Applied Mathematics 2016

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