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The scattering of light and surface plasmon polaritons (SPPs) by finite arrays of either holes or dimples in a metal film is treated theoretically. A modal expansion formalism, capable of handling real metals with up to thousands of…

介观与纳米尺度物理 · 物理学 2008-12-03 F. de Leon-Perez , G. Brucoli , F. J. Garcia-Vidal , L. Martin-Moreno

In this two part series, we present a contact model able to capture the response of interacting adhesive elastic-perfectly plastic particles under a variety of loadings. In Part I, we focus on elastic through fully-plastic contact with and…

软凝聚态物质 · 物理学 2023-09-15 William Zunker , Ken Kamrin

Modeling of microlensing events poses computational challenges for the resolution of the lens equation and the high dimensionality of the parameter space. In particular, numerical noise represents a severe limitation to fast and efficient…

天体物理仪器与方法 · 物理学 2025-02-19 V. Bozza , V. Saggese , G. Covone , P. Rota , J. Zhang

We consider a lattice model of a mixture of repulsive, attractive, or neutral monodisperse star (species A) and linear (species B) polymers with a third monomeric species C, which may represent free volume. The mixture is next to a hard,…

软凝聚态物质 · 物理学 2009-11-13 Richard Batman , P. D. Gujrati

Field-theoretical method is efficient in predicting the assembling structures of polymeric systems. However, for the polymer/nanoparticle mixture, the continuous density description is not suitable to capture the realistic assembly of…

软凝聚态物质 · 物理学 2017-05-17 Hui-shu Li , Bo-kai Zhang , Jian Li , Wen-de Tian , Kang Chen

The process of ageing in rubbers requires monitoring over long periods (days to years). To do so in non-conducting rubbers, small amounts of carbon-black particles were dispersed in a fractal network through the rubber matrix, to make the…

材料科学 · 物理学 2009-11-10 H. B. Brom , I. G. Romijn , J. G. Magis , M. van der Vleuten , M. A. J. Michels

We investigate the reliability of simulations of polyelectrolyte systems in aqueous environments, simulations that are performed using an efficient multi scale coarse grained polarizable pseudo-particle particle approach, denoted as pppl,…

软凝聚态物质 · 物理学 2024-01-01 Michel Masella , Fabien Léonforté

Scientific and environmental imagery often suffer from complex mixtures of noise related to the sensor and the environment. Existing restoration methods typically remove one degradation at a time, leading to cascading artifacts,…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Rupa Kurinchi-Vendhan , Pratyusha Sharma , Antonio Torralba , Sara Beery

Membranes derived from ultrathin polymeric films are promising to meet fast separations, but currently available approaches to produce polymer films with greatly reduced thicknesses on porous supports still faces challenges. Here,…

软凝聚态物质 · 物理学 2021-03-03 Xiansong Shi , Lei Wang , Nina Yan , Zhaogen Wang , Leiming Guo , Martin Steinhart , Yong Wang

Currently the extent of nanoplastic in the environment can only be estimated by extrapolation from the plastic waste that can be detected. To be able to quantify the whole extent of the problem, detection methods have to be developed that…

光学 · 物理学 2025-11-12 Ambika Shorny , Fritz Steiner , Helmut Hörner , Sarah M. Skoff

The effect of the adsorption of a polypeptide on the lateral interaction of dimyristoylphosphatidylserine molecules in different phase states on the surface of a 10\,mM KCl aqueous solution has been studied. Changes in the surface pressure…

The collision dynamics of hard spheres and cylindrical pores is solved exactly, which is the minimal model for a regularly porous membrane. Nonequilibrium event-driven molecular dynamics simulations are used to show that the permeability…

软凝聚态物质 · 物理学 2021-04-23 Yue Yu , Kai Zhang

Previous devices to separate cells by the characteristic force they experience due to dielectrophoresis, which depends on the size and electric properties of the particle, were limited by the flow rates and particle concentrations…

应用物理 · 物理学 2020-09-08 Ngoc-Duy Dinh , Dinh-Tuan Phan

Machine learning (ML) offers a powerful path toward discovering sustainable polymer materials, but progress has been limited by the lack of large, high-quality, and openly accessible polymer datasets. The Open Polymer Challenge (OPC)…

We present new policy mirror descent (PMD) methods for solving reinforcement learning (RL) problems with either strongly convex or general convex regularizers. By exploring the structural properties of these overall highly nonconvex…

机器学习 · 计算机科学 2022-04-08 Guanghui Lan

Modification of surfaces to enable dropwise condensation is a promising approach for achieving high condensation rates. In this work, we present an experimental study on condensation of water on copper surfaces coated with an ultrathin, 5…

Recent 3D multi-object tracking (3D MOT) methods mainly follow tracking-by-detection pipelines, but often suffer from high false positives, missed detections, and identity switches, especially in crowded and small-object scenarios. To…

计算机视觉与模式识别 · 计算机科学 2026-02-16 Peng Zhang , Xin Li , Xin Lin , Liang He

We study the repulsive polaron problem in a two-component two-dimensional system of fermionic atoms. We use two different interaction models: a short-range (hard-disk) potential and a dipolar potential. In our approach, all the atoms have…

Solutions of semiflexible polymers confined by repulsive planar walls are studied by density functional theory and Molecular Dynamics simulations, to clarify the competition between the chain alignment favored by the wall and the depletion…

软凝聚态物质 · 物理学 2016-05-25 Sergei A. Egorov , Andrey Milchev , Peter Virnau , Kurt Binder

Nanoparticles (NPs) are widely used in diverse application areas, such as medicine, engineering, and cosmetics. The size (or volume) of NPs is one of the most important parameters for their successful application. It is relatively…

介观与纳米尺度物理 · 物理学 2016-06-06 Ravi Kiran Attota