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Two-dimensional fractional brownian motion
(Wolfram Demonstrations Project, 2011)
Two-dimensional fractional brownian motion
(Wolfram Demonstrations Project, 2016)
Simulation of Intrinsic Random Fields of Order k with Gaussian Generalized Increments by Gibbs Sampling
(Springer, 2015)
This work pertains to the simulation of an intrinsic random field of order k
with a given generalized covariance function and multivariate Gaussian generalized
increments. An iterative algorithm based on the Gibbs sampler ...
Spectral simulation of vector random fields with stationary gaussian increments in d-dimensional euclidean spaces
(Springer, 2017)
This paper addresses the problem of simulating multivariate random fields with stationary Gaussian increments in a d-dimensional Euclidean space. To this end, one considers a spectral turning-bands algorithm, in which the ...
Description of food surfaces and microstructural changes using fractal image texture analysis
(ELSEVIER SCI LTD, 2002)
Images, particularly photomicrographs, provide qualitative information about surfaces of foods and cells. Methods to analyze the texture of images such as fractional Brownian motion (FBMM), box counting (BCM), and fractal ...
Enhanced Diffusion due to Active Swimmers at a Solid Surface
(AMER PHYSICAL SOC, 2011-01-25)
We consider two systems of active swimmers moving close to a solid surface, one being a living population of wild-type E. coli and the other being an assembly of self-propelled Au-Pt rods. In both situations, we have ...
Representações espectrais de sistemas complexos: aplicações à síntese de superfícies brownianas fracionárias anisotrópicas, filtragem de sinais e identificação de correlações
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em FísicaFísica da Matéria Condensada; Astrofísica e Cosmologia; Física da Ionosfera, 2012-08-24)
In this thesis, we study the application of spectral representations to the solution of problems
in seismic exploration, the synthesis of fractal surfaces and the identification of correlations
between one-dimensional ...