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相关论文: A heteropolymer in a medium with random droplets

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We consider random walkers that deform the medium as they move, enabling a faster motion in regions which have been recently visited. This induces an effective attraction between walkers mediated by the medium, which can be regarded as a…

The goal of the paper is a rigorous derivation of a macroscopic traffic flow model with a bifurcation or a local perturbation from a microscopic one. The microscopic model is a simple follow-the-leader with random parameters. The random…

偏微分方程分析 · 数学 2021-11-16 P Cardaliaguet , N Forcadel

We consider an energy conserving linear dynamics that we perturb by a Glauber dynamics with random site dependent intensity. We prove hydrodynamic limits for this non-reversible system in random media. The diffusion coefficient turns out to…

统计力学 · 物理学 2015-05-28 Cedric Bernardin

Diffusive transport of small molecules within the internal structures of biological and synthetic material systems is complex because the crowded environment presents chemical and physical barriers to mobility. We explored this mobility…

软凝聚态物质 · 物理学 2020-09-29 Rajarshi Guha , Subhadip Ghosh , Darrell Velegol , Peter J. Butler , Ayusman Sen , Jennifer L. Ross

We have investigated the formation of helium droplets in two physical situations. In the first one, droplets are atomised from superfluid or normal liquid by a fast helium vapour flow. In the second, droplets of normal liquid are formed…

软凝聚态物质 · 物理学 2009-11-13 Pierre-Etienne Wolf , Fabien Bonnet , Sylvain Perraud , Laurent Puech , Bernard Rousset , Pierre Thibault

We introduce a sequential model for the deposition and aggregation of particles in the submonolayer regime. Once a particle has been randomly deposited on the substrate, it sticks to the closest atom or island within a distance \ell,…

统计力学 · 物理学 2007-05-23 Paolo Politi , Yukio Saito

We consider the model for the distribution of a long homopolymer in a potential field. The typical shape of the polymer depends on the temperature parameter. We show that at a critical value of the temperature the transition occurs from a…

概率论 · 数学 2009-02-18 M. Cranston , L. Koralov , S. Molchanov , B. Vainberg

It has long been suggested that the mid-latitude atmospheric circulation possesses what has come to be known as `weather regimes', loosely categorised as regions of phase space with above-average density and/or extended persistence. Their…

大气与海洋物理 · 物理学 2022-07-13 Kristian Strommen , Matthew Chantry , Joshua Dorrington , Nina Otter

We study the structure and dynamics of a transient network composed of droplets of microemulsion connected by telechelic polymers. The polymer induces a bridging attraction between droplets without changing their shape. A viscoelastic…

软凝聚态物质 · 物理学 2009-10-31 F. Molino , J. Appell , M. Filali , E. Michel , G. Porte , S. Mora , E. Sunyer

In this work a stochastic model of gaseous transfer in polymer/CNT nanocomposites is presented. The model takes into account interfacial areas, i.e. polymer depletion regions. The local regime of transport is controlled by the density of…

材料科学 · 物理学 2023-11-09 Polina Kalashnikova , Ilia Kalashnikov , Konstantin Khromov

Droplet deposition onto a hydrophobic surface is studied experimentally and numerically. A wide range of droplet sizes can result from the same syringe, depending strongly on the needle retraction speed. Three regimes are identified…

流体动力学 · 物理学 2015-05-13 Bian Qian , Melissa Loureiro , David Gagnon , Anubhav Tripathi , Kenneth S. Breuer

We investigate a one-dimenisonal Hamiltonian system that describes a system of particles interacting through short-range repulsive potentials. Depending on the particle mean energy, $\epsilon$, the system demonstrates a spectrum of kinetic…

统计力学 · 物理学 2009-11-10 S. Denisov , A. Filippov , J. Klafter , M. Urbakh

In this paper, the localized surface modes in a defective multilayer structure has been investigated. It is shown that the defective multilayer structures can support two different kind of localized modes depending on the position and the…

光学 · 物理学 2013-05-29 S. Roshan Entezar , A. Namdar

We study the physics of droplet breakup in a statistically stationary homogeneous and isotropic turbulent flow by means of high resolution numerical investigations based on the multicomponent lattice Boltzmann method. We verified the…

流体动力学 · 物理学 2015-06-03 Prasad Perlekar , Luca Biferale , Mauro Sbragaglia , Sudhir Srivastava , Federico Toschi

In this paper, we describe the manifestation of localized states through coherent and incoherent analyses of a diffuse elastic wavefield inside a two-dimensional metamaterial made of a collection of vertical long beams glued to a thin…

We analytically compute a localization criterion in double scattering approximation for a set of dielectric spheres or perfectly conducting disks uniformly distributed in a spatial volume which can be either spherical or layered. For every…

光学 · 物理学 2009-10-31 C. Ordenovic , G. Berginc , C. Bourrely

We consider d-dimensional random surface models which for d=1 are the standard (tied-down) random walks (considered as a random ``string''). In higher dimensions, the one-dimensional (discrete) time parameter of the random walk is replaced…

概率论 · 数学 2016-09-07 Erwin Bolthausen

In this paper, we study the role of surface of the globule and the role of interactions with the solvent for designed sequence heteropolymers using random energy model (REM). We investigate the ground state energy and surface monomer…

软凝聚态物质 · 物理学 2007-05-23 Longhua Hu , Alexander Y. Grosberg

Two-scale homogenization limits of parabolic cross-diffusion systems in a heterogeneous medium with no-flux boundary conditions are proved. The heterogeneity of the medium is reflected in the diffusion coefficients or by the perforated…

偏微分方程分析 · 数学 2018-10-18 Ansgar Juengel , Mariya Ptashnyk

The distribution function for the intensity of radiation propagating in a random medium is analyzed for arbitrary multiplicity of scattering (for arbitrary relation between the distance of propagation and mean free path), including as…

凝聚态物理 · 物理学 2007-05-23 Eugene Kogan , Moshe Kaveh