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We analyze the simplest problem of electrochemical relaxation in more than one dimension - the response of an uncharged, ideally polarizable metallic sphere (or cylinder) in a symmetric, binary electrolyte to a uniform electric field. In…

材料科学 · 物理学 2009-11-11 Kevin T. Chu , Martin Z. Bazant

We present a systematic statistical mechanical analysis of the conformational properties of a stiff polyelectrolyte chain with intrachain attractions that are due to counterion correlations. We show that the mean-field solution corresponds…

软凝聚态物质 · 物理学 2007-05-23 Per Lyngs Hansen , Rudi Podgornik , Daniel Svenšek , V. Adrian Parsegian

Buckling plays a critical role in the transport and dynamics of elastic microfilaments in Stokesian fluids. However, previous work has only considered filaments with homogeneous structural properties. Filament backbone stiffness can be…

软凝聚态物质 · 物理学 2023-01-20 Thomas Nguyen , Harishankar Manikantan

Wrinkling of an inextensible elastic lining of an inner-lined tube under imposed pressure is considered. A simple equation modeling the elastic properties of the lining, the pressure, and the soft-substrate forces is derived. This equation…

软凝聚态物质 · 物理学 2022-01-20 Benjamin Foster , Nicolás Verschueren , Edgar Knobloch , Leonardo Gordillo

In this work, we introduced a class of nonlocal models to accurately approximate the Poisson model on manifolds that are embedded in high dimensional Euclid spaces with Dirichlet boundary. In comparison to the existing nonlocal Poisson…

数值分析 · 数学 2023-03-15 Yajie Zhang , Zuoqiang Shi

We examine the reductions of the order of certain third- and second-order nonlinear equations with arbitrary nonlinearity through their symmetries and some appropriate transformations. We use the folding transformation which enables one to…

可精确求解与可积系统 · 物理学 2015-04-02 K. M. Tamizhmani , K. Krishnakumar , P. G. L. Leach

For the non-rotating gaseous stars modeled by the compressible Euler-Poisson system with general pressure law, Lin and Zeng [18] proved a turning point principle, which gives the sharp linear stability/instability criteria for the…

偏微分方程分析 · 数学 2023-08-21 Zhiwu Lin , Yucong Wang , Hao Zhu

This paper concerns the study of the incompressible Euler equations with variable density, in the case of space dimension $d=2$. Contrarily to their homogeneous (constant density) counterpart, those equations are not known to be well-posed…

偏微分方程分析 · 数学 2025-02-17 Francesco Fanelli

We consider mechanically-induced pattern formation within the framework of a growing, planar, elastic rod attached to an elastic foundation. Through a combination of weakly nonlinear analysis and numerical methods, we identify how the shape…

生物物理 · 物理学 2020-06-02 Axel A. Almet , Helen M. Byrne , Philip K. Maini , Derek E. Moulton

We consider the nonlinear Poisson-Boltzmann equation in the context of electrostatic models for a biological macromolecule, embedded in a bounded domain containing a solution of an arbitrary number of ionic species which is not necessarily…

偏微分方程分析 · 数学 2022-04-26 José A. Iglesias , Svetoslav Nakov

The nonconservative elastic responses of active solids have driven a recent explosion of interest in two-dimensional "odd" elasticity: small, linear deformations of these Cauchy elastic solids enable new behaviour absent from classical,…

软凝聚态物质 · 物理学 2026-05-05 Shiheng Zhao , Pierre A. Haas

I study the buckling transition under compression of a two-dimensional, hexagonal, regular elastic honeycomb. Under isotropic compression, the system buckles to a configuration consisting of a unit cell containing four of the original…

材料科学 · 物理学 2009-11-10 E. A. Jagla

This article investigates the large deflection and post-buckling of composite plates by employing the Carrera Unified Formulation (CUF). As a consequence, the geometrically nonlinear governing equations and the relevant incremental…

软凝聚态物质 · 物理学 2021-07-28 E. Carrera , R. Azzara , E. Daneshkhah , A. Pagani , B. Wu

The critical Ising model in two dimensions with a defect line is analyzed to deliver the first exact solution with twisted boundary conditions. We derive exact expressions for the eigenvalues of the transfer matrix and obtain analytically…

统计力学 · 物理学 2016-10-26 Armen Poghosyan , Nikolay Izmailian , Ralph Kenna

Applying the light-cone sum rules (LCSR) approach, the next-to-leading-order (NLO) corrections to $B \to A$ form factors are calculated with the twist-two and twist-three $B$ meson light-cone distribution amplitudes (LCDAs) at leading power…

高能物理 - 唯象学 · 物理学 2025-12-04 Fang-Zhou Di , Yu-Hao Liu

The development of efficient and robust dynamic models is fundamental in the field of systems and control engineering. In this paper, a new formulation for the dynamic model of nonlinear mechanical systems, that can be applied to different…

系统与控制 · 电气工程与系统科学 2026-02-09 Davide Tebaldi , Roberto Zanasi

In this paper, we revised a post-buckling of an elastic circular plate subject to uniform pressure on its edge. The governing von Karman equations are solved by power series method and numerical colocation method. An alternative method for…

经典物理 · 物理学 2018-12-03 Milan Batista

We consider the focusing NLS with an angular momentum and a harmonic potential, which models Bose-Einstein condensate under a rotating magnetic trap. We give a sharp condition on the global existence and blowup in the mass-critical case. We…

偏微分方程分析 · 数学 2023-12-08 Nyla Basharat , Hichem Hajaiej , Yi Hu , Shijun Zheng

The elastic behavior of materials operating in the linear regime is constrained, by definition, to operations that are linear in the imposed deformation. Though the nonlinear regime holds promise for new functionality, the design in this…

软凝聚态物质 · 物理学 2020-12-15 Daniel Hexner

The sliding columnar phase is a new liquid-crystalline phase of matter composed of two-dimensional smectic lattices stacked one on top of the other. This phase is characterized by strong orientational but weak positional correlations…

软凝聚态物质 · 物理学 2009-10-31 C. S. O'Hern , T. C. Lubensky