نتایج جستجو برای: brownian

تعداد نتایج: 16313  

The present investigation draws scholars' attention to the effect of exponential variable viscosity modeled by Vogel and variable permeability on stagnation point flow of Carreau Nanofluid over an electromagnetic plate through a porous medium. Brownian motion and thermophoretic diffusion mechanism are taken into consideration. An efficient fourth-order RK method along with shooting technique ar...

In this study, the Brownian motion and thermophoresis effects on the MHD ferrofluid flow over a cone with thermal radiation were discussed. Kerosene with the magnetic nanoparticles (Fe3O4) was considered. A set of transformed governing nonlinear coupled ordinary differential equations were solved numerically using Runge-Kutta based shooting technique. A simulation was performed by mixing ferrou...

2014
Monique de Jager Frederic Bartumeus Andrea Kölzsch Franz J. Weissing Geerten M. Hengeveld Bart A. Nolet Peter M. J. Herman Johan van de Koppel

Ecological theory uses Brownian motion as a default template for describing ecological movement, despite limited mechanistic underpinning. The generality of Brownian motion has recently been challenged by empirical studies that highlight alternative movement patterns of animals, especially when foraging in resource-poor environments. Yet, empirical studies reveal animals moving in a Brownian fa...

F. Hosseinibalam O. Ghaffarpasand S. Hassanzadeh

Langevin equation for a nano-particle suspended in a laminar fluid flow was analytically studied. The Brownian motion generated from molecular bombardment was taken as a Wiener stochastic process and approximated by a Gaussian white noise. Euler-Maruyama method was used to solve the Langevin equation numerically. The accuracy of Brownian simulation was checked by performing a series of simulati...

A. Noghrehabadi M. Ghalambaz

In this paper, natural convection heat transfer over a vertical plate in a Darcy porous medium saturated with a nanofluid subject to heat generation/absorption was theoretically studied. The governing partial differential equations were transformed to a set of ordinary differential equations using similarity transformations and solved using finite difference method. The influence of parametric ...

2015

Brownian motion and stochastic flow systems. Wiley series inrprobability and mathematical statistics. Applied probability and statistics, ISSN. 0271-6232.Brownian motion is the seemingly random movement of particles suspended in a fluid or a. stochastic flow systems would be presented in this report.Harrison, J. Brownian motion and stochastic flow systems II. Originally published: New York : Wi...

1998
JEAN-FRANÇOIS DELMAS

Abstract. We consider a super-Brownian motion X. Its canonical measures can be studied through the path-valued process called the Brownian snake. We obtain the limiting behavior of the volume of the ε-neighborhood for the range of the Brownian snake, and as a consequence we derive the analogous result for the range of super-Brownian motion and for the support of the integrated super-Brownian ex...

1997
Davar Khoshnevisan Zhan Shi

(To appear) Brownian Sheet and Capacity By Davar Khoshnevisan* and Zhan Shi University of Utah & Universit e Paris VI Summary. The main goal of this paper is to present an explicit capacity estimate for hitting probabilities of the Brownian sheet. As applications, we determine the escape rates of the Brownian sheet, and also obtain a local intersection equivalence between the Brownian sheet and...

‎In this paper Lie symmetry analysis is applied to find new‎ solution for Fokker Plank equation of geometric Brownian motion‎. This analysis classifies the solution format of the Fokker Plank‎ ‎equation‎.

1999
Juan Ruiz JEAN BERTOIN JUAN RUIZ DE CHAVEZ

We construct a Brownian path conditioned on its minimum value over a fixed time interval by a simple transformation of a Brownian bridge. DOI: 10.1214/ECP.v4-1003 Posted at the Zurich Open Repository and Archive, University of Zurich ZORA URL: http://doi.org/10.5167/uzh-79487 Published Version Originally published at: Bertoin, Jean; Pitman, Jim; de Chavez, Juan Ruiz (1999). Constructions of a B...

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