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Polydisperse linear polymer melts can be microscopically described by the tube model and fractal reptation dynamics, while on the macroscopic side the generalized Maxwell model is capable of correctly displaying most of the rheological…

流体动力学 · 物理学 2018-02-20 Christian Lang

Taylor dispersion, the gravity-induced enhancement of translational diffusion during the steady settling of a Brownian particle, has so far been analyzed only for torque-free bodies (H. Brenner, J. Colloid Interface Sci., 71(2): 189-208,…

统计力学 · 物理学 2025-08-26 Zhongqiang Xiong , Ryohei Seto , Masao Doi

This paper compares theory and experiment for the kinetics of time-dependent sedimentation. We discuss non-interacting suspensions and colloids which may exhibit behavior similar to the one-dimensional motion of compressible gas. The…

凝聚态物理 · 物理学 2016-08-31 Sergei E. Esipov

A generalization of a distribution increases the flexibility particularly in studying of a phenomenon and its properties. Many generalizations of continuous univariate distributions are available in literature. In this study, an…

应用统计 · 统计学 2024-08-30 Brijesh P. Singh , Sandeep Singh , Utpal Dhar Das

A coarse-grained multi-blob description of polymer solutions is presented, based on soft, transferable effective interactions between bonded and non-bonded blobs. The number of blobs is chosen such that the blob density does not exceed…

软凝聚态物质 · 物理学 2009-11-13 Carlo Pierleoni , Barbara Capone , Jean-Pierre Hansen

Particle Flow Filters perform the measurement update by moving particles to a different location rather than modifying the particles' weight based on the likelihood. Their movement (flow) is dictated by a drift term, which continuously…

计算工程、金融与科学 · 计算机科学 2025-07-04 Simone Servadio

Factor analysis for high-dimensional data is a canonical problem in statistics and has a wide range of applications. However, there is currently no factor model tailored to effectively analyze high-dimensional count responses with…

统计方法学 · 统计学 2024-08-21 Wei Liu , Qingzhi Zhong

Motivated by the importance of dispersive readout in quantum technology, we study a prototypical dispersive readout setup that is probed by a squeezed vacuum in a time-reversal-symmetric fashion. To this end, we develop a…

量子物理 · 物理学 2025-12-03 Ming Li , JunYan Luo , Gloria Platero , Georg Engelhardt

We investigate both ensemble and time-averaged mean-squared displacements of particles in a polydisperse granular system in a homogeneous cooling state. The system contains an arbitrary number of species of different sizes and masses. The…

软凝聚态物质 · 物理学 2024-09-20 Anna S. Bodrova , Alexander I. Osinsky

Polymer mixtures fractionate between phases depending on their molecular weight. Consequently, by varying solvent conditions, a polydisperse polymer sample can be separated between phases so as to achieve a particular molecular weight…

软凝聚态物质 · 物理学 2026-04-10 J. Pedro de Souza , William M. Jacobs , Howard A. Stone

The aim of this paper is to introduce a new technique for calculation of observables, in particular multiplicity distributions, in various statistical ensembles at finite volume. The method is based on Fourier analysis of the grand…

核理论 · 物理学 2008-12-18 M. Hauer , V. V. Begun , M. I. Gorenstein

The application of dynamic light scattering to soft matter systems has strongly profited from advanced approaches such as the so-called modulated 3D cross correlation technique (mod3D-DLS) that suppress contributions from multiple…

软凝聚态物质 · 物理学 2022-03-15 Antara Pal , Peter Holmqvist , Andrea Vaccaro , Peter Schurtenberger

We estimate the distribution of random parameters in a distributed parameter model with unbounded input and output for the transdermal transport of ethanol in humans. The model takes the form of a diffusion equation with the input being the…

最优化与控制 · 数学 2018-08-14 Melike Sirlanci , Susan E. Luczak , Catharine E. Fairbairn , Dahyeon Kang , Ruoxi Pan , Xin Yu , I. G. Rosen

This review summarizes recent progress in investigating polymer systems by using Differential dynamic microscopy (DDM), a rapidly emerging approach that transforms a commercial microscope by combining real-space information with the…

软凝聚态物质 · 物理学 2021-06-07 Roberto Cerbino , Fabio Giavazzi , Matthew E. Helgeson

The method of Taylor series expansion is used to develop a numerical solution to the reactor point kinetics equations. It is shown that taking a first order expansion of the neutron density and precursor concentrations at each time step…

计算物理 · 物理学 2013-04-03 David McMahon , Adam Pierson

Tracer-diffusion of small molecules through dense systems of chain polymers is studied within an athermal lattice model, where hard core interactions are taken into account by means of the site exclusion principle. An approximate mapping of…

软凝聚态物质 · 物理学 2009-11-07 O. Durr , T. Volz , W. Dieterich , A. Nitzan

We describe a simulation method for the accurate study of the equilibrium freezing properties of polydisperse fluids under the experimentally relevant condition of fixed polydispersity. The approach is based on the phase switch Monte Carlo…

软凝聚态物质 · 物理学 2009-11-13 Nigel B. Wilding

The long time dynamics of polymeric materials has been extensively studied in the past through various experimental techniques and computer simulations. While computer simulations typically treat generic, simplified models, experiments deal…

软凝聚态物质 · 物理学 2008-09-10 Vagelis A. Harmandaris , Kurt Kremer

We present a microfluidic method leading to accurate measurements of the mutual diffusion coefficient of a liquid binary mixture over the whole solute concentration range in a single experiment. This method fully exploits solvent…

软凝聚态物质 · 物理学 2017-09-21 Anne Bouchaudy , Charles Loussert , Jean-Baptiste Salmon

We propose a systematic expansion method which is applied to freely evolving granular fluids contained in sufficiently small systems. Restricting ourselves to small systems, we show that there exists a small parameter which characterizes a…

统计力学 · 物理学 2007-05-23 J. Wakou