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We model the behaviour of a single colloid embedded in a cross-linked polymer gel, immersed in a viscous background fluid. External fields actuate the particle into a periodic motion, which deforms the embedding matrix and creates a local…

软凝聚态物质 · 物理学 2022-11-09 Guido L. A. Kusters , Cornelis Storm , Paul van der Schoot

For accurately obtaining the relationship between the carrier mobility and the applied electric field, a new multi-layer sample has been designed. Polyvinyl fluoride (PVF) films were hot pressed on both sides of linear low density…

应用物理 · 物理学 2018-03-21 Hui Zhao , Yewen Zhang , Jia Meng , Feihu Zheng , Zhenlian An

The paradox of a field of a moving locked charge (confined in a closed space) is considered and solved with the use of the integral Maxwell equations. While known formulas obtained for instantaneous fields of charges moving along straight…

经典物理 · 物理学 2020-12-02 Alexander J. Silenko

Current theories of diffusiophoresis in porous media are limited to a porous medium saturated with a valence symmetric electrolyte. A predictive model for diffusiophoresis in porous media saturated with a valence asymmetric electrolyte, or…

软凝聚态物质 · 物理学 2024-12-03 Siddharth Sambamoorthy , Henry C. W. Chu

Dislocations in soft condensed matter systems such as lamellar systems of polymers, liquid crystals and ternary mixtures of oil, water and surfactant (amphiphilic systems) are described in the framework of continuum elastic theory. These…

凝聚态物理 · 物理学 2015-06-25 R. Holyst , P. Oswald

Elastomers filled with liquid inclusions -- as opposed to conventional solid fillers -- are a recent trend in the soft matter community because of their unique range of mechanical and physical properties. Such properties stem, in part, from…

Using field theoretic approach, we study equilibrium shape deformation of a vesicle induced by the presence of enclosed flexible polymers, which is a simple model of drug delivery system or endocytosis. To evaluate the total free energy of…

软凝聚态物质 · 物理学 2015-05-20 Yutaka Oya , Katsuhiko Sato , Toshihiro Kawakatsu

We consider the electromagnetic field occurring in the background of a static, axially symmetric vacuum solution of Einstein's field equations immersed in an external magnetic field. The solution, known as the $\gamma$ metric (or…

广义相对论与量子宇宙学 · 物理学 2019-02-13 Carlos A. Benavides-Gallego , Ahmadjon Abdujabbarov , Daniele Malafarina , Bobomurat Ahmedov , Cosimo Bambi

Electrophoretic (EP) mobility reversal is commonly observed for strongly charged macromolecules in multivalent salt solutions. This curious effect takes place, e.g., when a charged polymer, such as DNA, adsorbs excess counterions so that…

软凝聚态物质 · 物理学 2023-03-28 Xiang Yang , Sahin Buyukdagli , Alberto Scacchi , Maria Sammalkorpi , Tapio Ala-Nissila

Numerical solutions of the standard electrokinetic model provide a basis for interpreting a variety of electrokinetic phenomena involving `bare' colloids. However, the model rests on the classical notion of a shear or slipping plane, whose…

软凝聚态物质 · 物理学 2007-05-23 Reghan J. Hill , D. A. Saville

We study the low-frequency polarization response of a surface-charged oblate spheroidal particle immersed in an electrolyte solution. Because the charged spheroid attracts counter-ions which form the electric double layer around the…

经典物理 · 物理学 2017-04-12 Chang-Yu Hou , Denise E. Freed , Pabitra N. Sen

The electroosmotic transfer (ratio of velocity of liquid to electric current density) and conductivity of disperse system were calculated as functions of volume fraction of disperse particles. The considered model of electric double layer…

软凝聚态物质 · 物理学 2007-05-23 V. N. Shilov , N. I. Zharkikh

An exact analytical theory is developed for calculating the diffusion coefficient of charge carriers in strongly anisotropic disordered solids with one-dimensional hopping transport mode for any dependence of the hopping rates on space and…

无序系统与神经网络 · 物理学 2012-01-10 A. V. Nenashev , F. Jansson , S. D. Baranovskii , R. Österbacka , A. V. Dvurechenskii , F. Gebhard

A (microscopic) static elastoplastic field theory of dislocations with moment and force stresses is considered. The relationship between the moment stress and the Nye tensor is used for the dislocation Lagrangian. We discuss the stress…

材料科学 · 物理学 2016-10-26 Markus Lazar

We investigate the electrostatics of a partially formed, charged spherical shell in a salt solution. We solve the problem numerically at the Poisson-Boltzmann level and analytically in the Debye-Huckel regime. From the results on energetics…

生物物理 · 物理学 2011-04-26 Anze Losdorfer Bozic , Antonio Siber , Rudolf Podgornik

We consider the coupling between an external electric field and dissociated ions embedded in anisotropic polarizable media such as block copolymers. We argue that the presence of such ions can induce strong morphological changes and even…

软凝聚态物质 · 物理学 2009-11-07 Yoav Tsori , Francois Tournilhac , David Andelman , Ludwik Leibler

By means of linear theory of elastoplasticity, solutions are given for screw and edge dislocations situated in an isotropic solid. The force stresses, strain fields, displacements, distortions, dislocation densities and moment stresses are…

材料科学 · 物理学 2007-05-23 Markus Lazar

In the technique of microrheology, macroscopic rheological parameters as well as information about local structure are deduced from the behavior of microscopic probe particles under thermal or active forcing. Microrheology requires…

软凝聚态物质 · 物理学 2009-11-13 Henry C. Fu , Vivek B. Shenoy , Thomas R. Powers

We study ionic and mass transport in a liquid crystalline fluid film in its nematic phase under an applied electrostatic field. Both analytic and numerical solutions are given for some prototypical configurations of interest in…

软凝聚态物质 · 物理学 2018-03-23 Christopher Conklin , Jorge Vinals

For a collisionless plasma in contact with a dielectric surface, where with unit probability electrons and ions are, respectively, absorbed and neutralized, thereby injecting electrons and holes into the conduction and valence band, we…

等离子体物理 · 物理学 2020-08-19 K. Rasek , F. X. Bronold , H. Fehske