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The fragmentation equation is commonly expressed in terms of two functions, the rate of fragmentation and the mean number of fragments. In the case of binary fragmentation an alternative description is possible based on the fragmentation…

数学物理 · 物理学 2022-03-08 Themis Matsoukas

Breaking waves generate a distribution of bubble sizes that evolves over time. Knowledge of how this distribution evolves is of practical importance for maritime and climate studies. The analytical framework developed in Part 1 examined how…

流体动力学 · 物理学 2020-12-10 Wai Hong Ronald Chan , Perry L. Johnson , Parviz Moin , Javier Urzay

We show that the size distributions of fragments created by high energy nuclear collisions are remarkably well reproduced within the framework of a parameter free percolation model. We discuss two possible scenarios to explain this…

统计力学 · 物理学 2009-10-31 X. Campi , H. Krivine , E. Plagnol , N. Sator

A probabilistic method for solving time-dependent load-transfer models of fracture is developed. It is applicable to any rule of load redistribution, i.e, local, hierarchical, etc. In the new method, the fluctuations are generated during…

统计力学 · 物理学 2019-08-17 J. B. Gomez , Y. Moreno , A. F. Pacheco

As well known, the generalized Langevin equation with a memory kernel decreasing at large times as an inverse power law of time describes the motion of an anomalously diffusing particle. Here, we focus attention on some new aspects of the…

统计力学 · 物理学 2011-05-27 Noëlle Pottier

Linear rate equations are used to describe the cascading decay of an initial heavy cluster into fragments. We consider moments of arbitrary orders of the mass multiplicity spectrum and derive scaling properties pertaining to their time…

核理论 · 物理学 2008-11-26 B. G. Giraud , R. Peschanski

We use a model whose rules were inspired by population genetics, the random capability growth model, to describe the statistical details observed in experiments of fragmentation of brittle platelike objects, and in particular the existence…

统计力学 · 物理学 2016-12-21 M. A. F. Gomes , Viviane M. de Oliveira

Power law distributions have been repeatedly observed in a wide variety of socioeconomic, biological and technological areas. In many of the observations, e.g., city populations and sizes of living organisms, the objects of interest evolve…

概率论 · 数学 2009-09-29 Predrag R. Jelenkovic , Jian Tan

Consider a particle diffusing in a confined volume which is divided into two equal regions. In one region the diffusion coefficient is twice the value of the diffusion coefficient in the other region. Will the particle spend equal…

动力系统 · 数学 2015-06-04 P. F. Tupper , Xin Yang

A lattice model with a spatial dispersion corresponding to a power-law type is suggested. This model serves as a microscopic model for elastic continuum with power-law non-locality. We prove that the continuous limit maps of the equations…

数学物理 · 物理学 2015-01-07 Vasily E. Tarasov

Stochastic models for the development of cracks in 1 and 2 dimensional objects are presented. In one dimension, we focus on particular scenarios for interacting and non-interacting fragments during the breakup process. For two dimensional…

统计力学 · 物理学 2009-11-11 F. P. M. dos Santos , R. Donangelo , S. R. Souza

Dynamical systems in nature exhibit selfsimilar fractal fluctuations and the corresponding power spectra follow inverse power law form signifying long-range space-time correlations identified as self-organized criticality. The physics of…

综合物理 · 物理学 2008-05-23 A. M. Selvam

The times required for reaching the power-law-in-time growth of the droplet radius after nucleation of a markedly supercritical binary droplet, are found analytically and estimated at diffusion-controlled or free-molecular regimes of…

统计力学 · 物理学 2009-01-23 Fedor M. Kuni , Alexandra A. Lezova , Alexander K. Shchekin

The two-fractal overlap model of earthquake shows that the contact area distribution of two fractal surfaces follows power law decay in many cases and this agrees with the Guttenberg-Richter power law. Here, we attempt to predict the large…

统计力学 · 物理学 2009-09-29 Srutarshi Pradhan , Pinaki Choudhuri , Bikas K. Chakrabarti

We define a spatially-dependent fragmentation process, which involves rectangles breaking up into progressively smaller pieces at rates that depend on their shape. Long, thin rectangles are more likely to break quickly, and are also more…

概率论 · 数学 2021-06-15 Alice Callegaro , Matthew I. Roberts

In the paper (Goloveshkin and Myagkov 2014) we proposed a two-dimensional energy-based model of fragmentation of rapidly expanding cylinder under plane strain conditions. The model allowed one to estimate the average fragment length and the…

经典物理 · 物理学 2018-03-28 V. A. Goloveshkin , N. N. Myagkov

Gradually Truncated Log-normal distribution - Size distribution of firms Abstract Many natural and economical phenomena are described through power law or log- normal distributions. In these cases, probability decreases very slowly with…

统计力学 · 物理学 2008-12-02 Hari M. Gupta , Jose R. Campanha

We study a random fragmentation process and its associated random tree. The process has earlier been studied by Dean and Majumdar (J. Phys. A: Math. Gen., vol. 35, L501--L507), who found a phase transition: the number of fragmentations is…

概率论 · 数学 2007-05-23 S. Janson , R. Neininger

In this article we investigate the energy spectrum statistics of fractals at the quantum level. We show that the energy-level distribution of a fractal follows a power-law behaviour, if its energy spectrum is a limit set of piece-wise…

无序系统与神经网络 · 物理学 2019-02-06 Askar A. Iliasov , Mikhail I. Katsnelson , Shengjun Yuan

To seek for a possible origin of fractal pattern in nature, we perform a molecular dynamics simulation for a fragmentation of an infinite fcc lattice. The fragmentation is induced by the initial condition of the model that the lattice…

适应与自组织系统 · 物理学 2015-06-26 Shinpei Chikazumi , Akira Iwamoto