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The average scattered intensity is determined by the optical characteristics of particles in dispersion. The normalized time auto-correlation function of the scattered light intensity $g^{(2)}(\tau) $ includes both the optical and…

化学物理 · 物理学 2007-05-23 Yong Sun

The increasing scientific and technological interest in nanoparticles has raised the need for fast, efficient and precise characterization techniques. Powder diffraction is a very efficient experimental method, as it is straightforward and…

材料科学 · 物理学 2008-12-02 A. Cervellino , C. Giannini , A. Guagliardi , M. Ladisa

Polymer chains dissolved in a solvent take random conformations due to large internal degrees of freedom and are characterized geometrically by their average shape and size. The diffusive dynamics of such large macromolecules play an…

软凝聚态物质 · 物理学 2023-07-11 Prabeen Kumar Pattnayak , Aloke Kumar , Gaurav Tomar

In this paper we study the combined effects of size and shape of small solid state particles on the absorption, emission and scattering characteristics. We use the statistical approach to calculate these optical properties. In this approach…

天体物理学 · 物理学 2009-11-10 M. Min , J. W. Hovenier , A. de Koter

Particle-dimer scattering below and above the three-body threshold is studied using Faddeev differential equations. Correllations between the observables are shown and some analogies between three-nucleon and three-atom systems are…

原子与分子团簇 · 物理学 2015-06-18 E. A. Kolganova

We establish the convergences (with respect to the simulation time $t$; the number of particles $N$; the timestep $\gamma$) of a Moran/Fleming-Viot type particle scheme toward the quasi-stationary distribution of a diffusion on the…

概率论 · 数学 2020-10-21 Lucas Journel , Pierre Monmarché

The stochastic solution to diffusion equations with polynomial coefficients is called a Pearson diffusion. If the time derivative is replaced by a distributed fractional derivative, the stochastic solution is called a fractional Pearson…

概率论 · 数学 2016-11-29 Jebessa B. Mijena , Erkan Nane

The Smoluchowski equation is a system of partial differential equations modelling the diffusion and binary coagulation of a large collection of tiny particles. The mass parameter may be indexed either by positive integers, or by positive…

概率论 · 数学 2008-12-01 Mohammad Reza Yaghouti , Fraydoun Rezakhanlou , Alan Hammond

We consider a system of stochastic interacting particles with general diffusion coefficient and drift functions and we study the types of collisions that arise in them. In particular, interactions between particles are inversely…

概率论 · 数学 2025-09-30 Sergio Andraus , Nicole Hufnagel , Jacek Małecki

We present an extension of relativistic single-particle distribution function for weakly interacting particles at local thermodynamical equilibrium including spin degrees of freedom, for massive spin 1/2 particles. We infer, on the basis of…

核理论 · 物理学 2015-06-15 F. Becattini , V. Chandra , L. Del Zanna , E. Grossi

The Chapman-Kolmogorov equation with fractional integrals is derived. An integral of fractional order is considered as an approximation of the integral on fractal. Fractional integrals can be used to describe the fractal media. Using…

无序系统与神经网络 · 物理学 2009-11-13 Vasily E. Tarasov

We here calculate the series expansion of the T-matrix for a spheroidal particle in the small-size/long-wavelength limit, up to third lowest order with respect to the size parameter, X, which we will define rigorously for a non-spherical…

Colloidal droplets are used in a variety of practical applications. Some of these applications require particles of different sizes. These include medical diagnostic methods, the creation of photonic crystals, the formation of…

软凝聚态物质 · 物理学 2024-04-04 P. A. Zolotarev , K. S. Kolegov

In this paper, we construct a type of interacting particle systems to approximate a class of stochastic different equations whose coefficients depend on the conditional probability distributions of the processes given partial observations.…

概率论 · 数学 2024-03-27 Kai Du , Yunzhang Li , Yuyang Ye

In this paper we develop a simple theory to study the effects of ionic size on ionic distributions around a charged spherical particle. We include a correction to the regular Poisson-Boltzmann equation in order to take into account the size…

软凝聚态物质 · 物理学 2017-08-30 Thiago Colla , Lucas Nunes Lopes , Alexandre P. dos Santos

In this paper, we are interested in the estimation of Particle Size Distributions (PSDs) during a batch crystallization process in which particles of two different shapes coexist and evolve simultaneously. The PSDs are estimated thanks to a…

最优化与控制 · 数学 2021-03-23 Lucas Brivadis , Ludovic Sacchelli

We revisit extending the Kolmogorov-Smirnov distance between probability distributions to the multidimensional setting and make new arguments about the proper way to approach this generalization. Our proposed formulation maximizes the…

统计计算 · 统计学 2025-04-16 Peter Matthew Jacobs , Foad Namjoo , Jeff M. Phillips

Probability distributions for correlation functions of particles interacting via random-valued fields are discussed as a novel tool for determining the spectrum of a theory. In particular, this method is used to determine the energies of…

核理论 · 物理学 2016-04-20 Amy N. Nicholson

The equilibrium size distribution function of clusters (nanoparticles) in the system of finite number of molecules (atoms) in finite closed volume with constant total energy (isolated system) is found using methods of statistical…

统计力学 · 物理学 2013-06-04 I. H. Umirzakov

The dynamics of neutrally buoyant particles transported by a turbulent flow is investigated for spherical particles with radii of the order of the Kolmogorov dissipative scale or larger. The pseudo-penalisation spectral method that has been…

流体动力学 · 物理学 2017-05-24 Holger Homann , Jeremie Bec