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Recently the materials possessing structure of molecular and supramolecular matrix are more and more actively studied. They are relative to many polymeric materials of a technological origin, such as rubber, and living biological tissues.…

适应与自组织系统 · 物理学 2013-06-27 A. A. Bedulina , A. V. Kobelev

Well-posedness of a free boundary problem for electrostatic microelectromechanical systems (MEMS) is investigated when nonlinear bending effects are taken into account. The model describes the evolution of the deflection of an electrically…

偏微分方程分析 · 数学 2014-09-26 Philippe Laurencot , Christoph Walker

In this paper we studied the weakly nonlinear stage of stationary convective instability in a nonuniformly rotating layer of an electrically conductive fluid in an axial uniform magnetic field under the influence of: a) temperature…

等离子体物理 · 物理学 2019-11-14 M. I. Kopp , A. V. Tur , V. V. Yanovsky

We study a general model describing a self-detecting single electron transistor realized by a suspended carbon nanotube actuated by a nearby antenna. The main features of the device, recently observed in a number of experiments, are…

介观与纳米尺度物理 · 物理学 2015-06-04 A. Nocera , C. A. Perroni , V. Marigliano Ramaglia , V. Cataudella

Coherent structures are solutions to reaction-diffusion systems that are time-periodic in an appropriate moving frame and spatially asymptotic at $x=\pm\infty$ to spatially periodic travelling waves. This paper is concerned with sources…

偏微分方程分析 · 数学 2015-05-27 Margaret Beck , Toan Nguyen , Bjorn Sandstede , Kevin Zumbrun

We study the linear properties, nonlinear saturation and a steady, strongly nonlinear state of the Parker instability in galaxies. We consider magnetic buoyancy and its consequences with and without cosmic rays. Cosmic rays are described…

A recent large deflection cantilever model is considered. The principal nonlinear effects come through the beam's inextensibility---local arc length preservation---rather than traditional extensible effects attributed to fully restricted…

偏微分方程分析 · 数学 2019-10-16 Maria Deliyianni , Varun Gudibanda , Jason Howell , Justin T. Webster

The linear instability of thin, vertically-isothermal Keplerian discs, under the influence of axial magnetic field is investigated. Solutions of the stability problem are found explicitly by asymptotic expansions in the small aspect ratio…

太阳与恒星天体物理 · 物理学 2015-06-03 E. Liverts , Yu. Shtemler , M. Mond

We consider nonlinear effects in scattering of light by a periodic structure supporting optical bound states in the continuum. In the spectral vicinity of the bound states the scattered electromagnetic field is resonantly enhanced…

光学 · 物理学 2019-02-18 Evgeny N. Bulgakov , Dmitrii N. Maksimov

Nonlinear effects are omnipresent in thin films of ion conducting materials showing up as a significant increase of the conductivity. For a disordered hopping model general physical mechanisms are identified giving rise to the occurrence of…

无序系统与神经网络 · 物理学 2015-06-18 Andreas Heuer , Lars Luehning

We derive phenomenological model for endurance-write time switching tradeoff for nonvolatile memories with thermally activated switching mechanisms. The model predicts linear to cubic dependence of endurance on write time for metal oxide…

其他凝聚态物理 · 物理学 2016-10-10 Dmitri Strukov

In 1971 the memristor was originally postulated as a new non-linear circuit element relating the time integrals of current and voltage. More recently researchers at HPLabs have linked the theoretical memristor concept to resistance…

介观与纳米尺度物理 · 物理学 2010-03-16 Blaise Mouttet

The nonlinear stage of modulational instability in optical fibers induced by a wide and easily accessible class of localized perturbations is studied using the nonlinear Schrodinger equation. It is showed that the development of associated…

斑图形成与孤子 · 物理学 2018-11-14 Matteo Conforti , Sitai Li , Gino Biondini , Stefano Trillo

We investigate emergent dynamics due to non-reciprocity in the $\mathcal{O}(2)$ model. The lattice XY model, where non-reciprocity stems from vision cone like couplings, can be described by a continuum description in which non-reciprocity…

统计力学 · 物理学 2026-03-25 Ylann Rouzaire , Daniel JG Pearce , Ignacio Pagonabarraga , Demian Levis

We present a new method to derive kinetic equations for systems undergoing non-linear transport in the presence of memory effects. In the framework of mesoscopic nonequilibrium thermodynamics, we derive a generalized Fokker-Planck equation…

统计力学 · 物理学 2009-11-10 I. Santamaria-Holek , J. M. Rubi

We analyse the dynamical evolution of a fluid with non-linear drag, for which binary collisions are elastic, described at the kinetic level by the Enskog-Fokker-Planck equation. This model system, rooted in the theory of non-linear Brownian…

软凝聚态物质 · 物理学 2024-03-26 A. Patrón , B. Sánchez-Rey , A. Prados

We present approximate analytical method of analysis of stationary states of nonlinear quantum systems with the noise. As an example we consider quantum nonlinear oscillator excited by fluctuating force and found parameter regions with more…

光学 · 物理学 2015-01-06 Igor Protsenko , Evgenii Protsenko , Alexander Uskov

We compute effective energies of thin bilayer structures composed by soft nematic elastic-liquid crystals in various geometrical regimes and functional configurations. Our focus is on order-strain interaction in elastic foundations composed…

偏微分方程分析 · 数学 2021-03-12 Pierluigi Cesana , Andres A Leon Baldelli

Memristors are nonlinear two-terminal circuit elements whose resistance at a given time depends on past electrical stimuli. Recently, networks of memristors have received attention in neuromorphic computing since they can be used as a tool…

最优化与控制 · 数学 2024-09-24 Marieke Heidema , Henk van Waarde , Bart Besselink

Using a rotating flat layer heated from below as an example, we consider effects which lead to stabilizing an exponentially growing magnetic field in magnetostrophic convection in transition from the kinematic dynamo to the full non-linear…

流体动力学 · 物理学 2015-05-18 P. Hejda , M. Reshetnyak