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相关论文: Wetting of gradient fields: pathwise estimates

200 篇论文

We compute the probability distribution of the interface width at the depinning threshold, using recent powerful algorithms. It confirms the universality classes found previously. In all cases, the distribution is surprisingly well…

凝聚态物理 · 物理学 2009-11-10 Alberto Rosso , Werner Krauth , Pierre Le Doussal , Jean Vannimenus , Kay Joerg Wiese

A model in statistical mechanics, characterised by the corresponding Gibbs measure, is a subset of the totality of probability distributions on the phase space. The shape of this subset, i.e., the geometry, then plays an important role in…

凝聚态物理 · 物理学 2007-05-23 D. C. Brody , A. Ritz

We argue that for complete wetting at a curved substrate (wall) the wall-fluid surface tension is non-analytic in $R_i^{-1}$, the curvature of the wall and that the density profile of the fluid near the wall acquires a contribution…

软凝聚态物质 · 物理学 2009-11-10 R. Evans , R. Roth , P. Bryk

Liquid-liquid wetting failure is investigated in a two-dimensional Couette system with two immiscible fluids of arbitrary viscosity. The problem is solved exactly using a sharp interface treatment of hydrodynamics (lubrication theory) as a…

流体动力学 · 物理学 2009-11-13 M. Sbragaglia , K. Sugiyama , L. Biferale

We establish a thermodynamic limit and Gaussian fluctuations for the height and surface width of the random interface formed by the deposition of particles on surfaces. The results hold for the standard ballistic deposition model as well as…

统计力学 · 物理学 2009-11-07 Mathew D. Penrose , J. E. Yukich

Bayesian experimental design (BED) is to answer the question that how to choose designs that maximize the information gathering. For implicit models, where the likelihood is intractable but sampling is possible, conventional BED methods…

机器学习 · 计算机科学 2021-03-16 Jiaxin Zhang , Sirui Bi , Guannan Zhang

Based on the thermodynamic variation, we rigorously derive the sharp-interface model for solid-state dewetting on a flat substrate in the form of cylindrical symmetry. The governing equations for the model belong to fourth-order geometric…

材料科学 · 物理学 2018-05-22 Quan Zhao

Enchanting ripple pattern exist on interface, and manifest them self in it's fluctuation profile as well. These ripples apparently flow as the interface struck with inhomogeneous externally driven field interface, moves fluctuating about it…

统计力学 · 物理学 2016-02-26 Manish K. Sahai

Water-ice systems undergoing melting develop complex spatio-temporal interface dynamics and a non-trivial temperature field. In this contribution, we present computational aspects of a recently conducted validation study that aims at…

流体动力学 · 物理学 2018-01-12 K. Schüller , B. Berkels , J. Kowalski

We investigate the ability of a multi-order parameter phase field model with obstacle potentials to describe grain boundary premelting in equilibrium situations. In agreement with an energetic picture we find that the transition between dry…

Using an interface displacement model derived from a microscopic density functional theory we investigate thin liquidlike wetting layers adsorbed on flat substrates with an embedded chemical heterogeneity forming a stripe. For a wide range…

软凝聚态物质 · 物理学 2009-10-31 C. Bauer , S. Dietrich , A. O. Parry

We study an asymptotic nonlinear model for filamention on two-dimensional vorticity interfaces. Different re-formulations of the model equation reveal its underlying structural properties. They enable us to construct global weak solutions…

偏微分方程分析 · 数学 2024-10-11 Adrian Constantin , David Dritschel , Pierre Germain

The study of the relation between the Weierstrass inducing formulae for constant mean curvature surfaces and the completely integrable euclidean nonlinear sigma-model suggests a connection among integrable sigma -models in a background and…

微分几何 · 数学 2007-05-23 L. Martina , Kur. Myrzakul , R. Myrzakulov

Using coarse grained models we investigate the behavior of water adjacent to an extended hydrophobic surface peppered with various fractions of hydrophilic patches of different sizes. We study the spatial dependence of the mean interface…

统计力学 · 物理学 2014-09-09 Adam P. Willard , David Chandler

We demonstrate that a transformation device can be emulated using a gradient-index waveguide. The effective index of the waveguide is spatially varied by tailoring a gradient thickness dielectric waveguide. Based on this technology, we…

光学 · 物理学 2015-06-05 Y. Wang , C. Sheng , H. Liu , Y. J. Zheng , C. Zhu , S. M. Wang , S. N. Zhu

In this paper, we introduce a novel way to represent the interface for two-phase flows with phase change. We combine a level-set method with a Cartesian embedded boundary method and take advantage of both. This is part of an effort to…

数值分析 · 数学 2022-12-28 A. Limare , S. Popinet , C. Josserand , Z. Xue , A. Ghigo

A general class of unidirectional transforms is presented that can be computed in a distributed manner along an arbitrary routing tree. Additionally, we provide a set of conditions under which these transforms are invertible. These…

分布式、并行与集群计算 · 计算机科学 2015-05-14 Godwin Shen , Antonio Ortega

Interface undercooling is one of the most significant parameters in the solidification of colloidal suspensions. However, quantitative measurement of interface undercooling of colloidal suspensions is still a challenge. Here, a new…

材料科学 · 物理学 2015-08-13 Jiaxue You , Lilin Wang , Zhijun Wang , Junjie Li , Jincheng Wang , Xin Lin , Weidong Huang

This paper studies interpretability of convolutional networks by means of saliency maps. Most approaches based on Class Activation Maps (CAM) combine information from fully connected layers and gradient through variants of backpropagation.…

计算机视觉与模式识别 · 计算机科学 2024-04-24 Felipe Torres Figueroa , Hanwei Zhang , Ronan Sicre , Yannis Avrithis , Stephane Ayache

An estimate of the net direction of climate interactions in different geographical regions is made by constructing a directed climate network from a regular latitude-longitude grid of nodes, using a directionality index (DI) based on…

混沌动力学 · 物理学 2015-06-23 J. Ignacio Deza , Cristina Masoller , Marcelo Barreiro