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The purpose of this work is to create a model of a nanofluidic transistor which is able to mimic the effects of pH on nanopore conductance. The pH of the electrolyte is an experimentally controllable parameter through which the charge…

介观与纳米尺度物理 · 物理学 2019-10-02 Dávid Fertig , Mónika Valiskó , Dezső Boda

Understanding how electrolyte-filled porous electrodes respond to an applied potential is important to many electrochemical technologies. Here, we consider a model supercapacitor of two blocking cylindrical pores on either side of a…

软凝聚态物质 · 物理学 2022-04-05 Jie Yang , Mathijs Janssen , Cheng Lian , René van Roij

Bipolar nanopores, with asymmetric charge distributions, can induce significant ionic current rectification (ICR) at ultra-short lengths, finding potential applications in nanofluidic devices, energy conversion, and other related fields.…

化学物理 · 物理学 2024-10-29 Hongwen Zhang , Long Ma , Chao Zhang , Yinghua Qiu

We study the charging dynamics of a long electrolyte-filled slit pore in response to a suddenly applied potential. In particular, we analytically solve the Poisson-Nernst-Planck (PNP) equations for a pore for which $\lambda_D\ll H\ll L$,…

软凝聚态物质 · 物理学 2022-01-28 Timur Aslyamov , Mathijs Janssen

Ion flow in charged nanopores is strongly influenced by the ratio of the Debye length to the pore radius. We investigate the asymptotic behaviour of solutions to the Poisson-Nernst-Planck (PNP) system in narrow pore like geometries and…

偏微分方程分析 · 数学 2019-04-10 B. Matejczyk , J. -F. Pietschmann , G. Richardson , M. -T. Wolfram

Ion transport in biological and synthetic nanochannels is characterized by phenomena such as ion current fluctuations and rectification. Recently, it has been demonstrated that nanofabricated synthetic pores can mimic transport properties…

经典物理 · 物理学 2009-11-13 I. D. Kosińska , I. Goychuk , M. Kostur , G. Schmid , P. Hänggi

Supercooled liquids are characterized by relaxation times that increase dramatically by cooling or compression. Many liquids have been shown to obey power-law density scaling, according to which the relaxation time is a function of density…

软凝聚态物质 · 物理学 2012-12-19 Lasse Bøhling , Trond S. Ingebrigtsen , A. Grzybowski , M. Paluch , Jeppe C. Dyre , Thomas B. Schrøder

For heavy-ion collisions at RHIC a scaling behavior is found in the dependencies on azimuthal angle $\phi$ and impact parameter $b$ for pion production at high $p_T$ essentially independent of the hadronization process. The scaling variable…

核理论 · 物理学 2010-04-06 Rudolph C. Hwa , C. B. Yang

We investigate thermal rectification in nanoporous silicon using a semi-classical Monte Carlo (MC) simulation method. We consider geometrically asymmetric nanoporous structures, and investigate the combined effects of porosity, inter-pore…

材料科学 · 物理学 2019-11-18 Dhritiman Chakraborty , Joshua Brooke , Nick C S Hulse , Neophytos Neophytou

We present a 3D finite element solver for the nonlinear Poisson-Nernst-Planck (PNP) equations for electrodiffusion, coupled to the Stokes system of fluid dynamics. The model serves as a building block for the simulation of macromolecule…

We present a method to determine the equilibrium geometry of large atomistic systems with linear scaling. It is based on a separate treatment of long and short wavelength components of the forces. While the rapidly varying part is handled…

材料科学 · 物理学 2009-11-07 Stefan Goedecker , Frederic Lancon , Thierry Deutsch

We consider the asymptotic behavior of the polarization process for polar codes when the blocklength tends to infinity. In particular, we study the problem of asymptotic analysis of the cumulative distribution $\mathbb{P}(Z_n \leq z)$,…

信息论 · 计算机科学 2010-01-28 S. Hamed Hassani , Rudiger Urbanke

Corrections to scaling, associated with deviations of the order parameter from the scaling morphology in the initial state, are studied for systems with O(n) symmetry at zero temperature in phase-ordering kinetics. Including corrections to…

统计力学 · 物理学 2009-10-31 N. P. Rapapa , A. J. Bray

Confinement strongly influences electrochemical systems, where structural control has enabled advances in nanofluidics, sensing, and energy storage. In electric double-layer capacitors (EDLCs), or supercapacitors, energy density is governed…

化学物理 · 物理学 2026-01-30 Bryce Rives , Filipe Henrique , Pawel Zuk , Ankur Gupta

Present work attempts to identify the roles of flow- and geometric-variables on the scaling factor which is a necessary parameter for modeling the apparent viscosity of non-Newtonian fluid in porous media. While idealizing the porous media…

流体动力学 · 物理学 2021-02-11 Jithin M. , Nimish Kumar , Ashoke De , Malay K. Das

We study the relationship between signatures of high redshift ionization in large-angle CMB polarization power spectra and features in the Planck 2015 data. Using a principal component (PC) ionization basis that is complete to the cosmic…

宇宙学与河外天体物理 · 物理学 2018-09-19 Chen Heinrich , Wayne Hu

Aggregation of nanoparticles of given size $R$ induced by addition of a polymer strongly depends on its degree of rigidity. This is shown here on a large variety of silica nanoparticle self-assemblies obtained by electrostatic complexation…

软凝聚态物质 · 物理学 2016-11-08 Li Shi , Florent Carn , François Boué , Eric Buhler

Double-pass polarimetry measures the polarization properties of a sample over a range of polar angles and all azimuths. Here, we present a tolerance analysis of all the optical elements in both the calibration and measurement procedures to…

光学 · 物理学 2020-08-18 Yimin Yu , Nabila Baba-Ali , Gregg M Gallatin

We consider the thermodynamics of a uniformly charged polyelectrolyte with harmonic bonds. For such a system there is at high temperatures an approximate scaling of global properties like the end-to-end distance and the interaction energy…

chem-ph · 物理学 2016-08-15 Carsten Peterson , Ola Sommelius , Bo Söderberg

A brief review is presented of the scaling of complex fluids, polymers and polyelectrolytes in solution and in confined geometry, in thermodynamical, structural and rheology properties using equilibrium and nonequilibrium dissipative…

软凝聚态物质 · 物理学 2016-12-06 Armando Gama Goicochea