Zobrazeno 1 - 10
of 127
pro vyhledávání: '"Olchawa, W."'
Publikováno v:
Materials 2020, 13, 2748
The main goal of our research is to develop an effective method with a wide range of applications for the statistical reconstruction of heterogeneous microstructures with compact inclusions of any shape, such as highly irregular grains. The devised a
Externí odkaz:
http://arxiv.org/abs/2004.02587
Publikováno v:
Acta Phys. Pol. B, 49 (2018) 961-979
Despite simplicity, the synchronous cellular automaton [D.A. Young, Math. Biosci. 72, 51 (1984)] enables reconstructing basic features of patterns of skin. Our extended model allows studying the formatting of patterns and their temporal evolution als
Externí odkaz:
http://arxiv.org/abs/1804.06228
Publikováno v:
Transp Porous Med 125 (2018) 105-125; [Special Issue on Reconstruction of Porous Media and Materials and Its Applications, Issue Editors: Pejman Tahmasebi, Muhammad Sahimi]
We report a multiscale approach of broad applicability to stochastic reconstruction of multiphase materials, including porous ones. The approach devised uses an optimization method, such as the simulated annealing (SA) and the so-called entropic desc
Externí odkaz:
http://arxiv.org/abs/1708.01147
Publikováno v:
Acta Phys. Pol. B, 48 (2017) 1433-40
A wide variety of real random composites can be studied by means of prototypes of multiphase microstructures with a controllable spatial inhomogeneity. To create them, we propose a versatile model of randomly overlapping super-spheres of a given radi
Externí odkaz:
http://arxiv.org/abs/1706.06880
Publikováno v:
Comput. Mater. Sci. 123 (2016) 26-30
We propose an approximate reconstruction of random heterogeneous microstructures using the two-exponent power-law (TEPL). This rule originates from the entropic descriptor (ED) that is a multi-scale measure of spatial inhomogeneity for a given micros
Externí odkaz:
http://arxiv.org/abs/1603.07529
The simple entropic method to statistical reconstructing of heterogeneous three-dimensional media from a single two-dimensional image is briefly reported. We apply the entropic descriptor quantifying spatial inhomogeneity that depends on length scale
Externí odkaz:
http://arxiv.org/abs/1508.03857
Publikováno v:
Physica A, 444 (2016) 799-807
Recently, the effective medium approach using 2x2 basic cluster of model lattice sites to predict the conductivity of interacting droplets has been presented by Hattori et al. To make a step aside from pure applications, we have studied earlier a mul
Externí odkaz:
http://arxiv.org/abs/1506.05156
The Stark-induced shift and asymmetry, the so-called pressure shift (PS) of $H_\alpha$ and $H_\beta$ Balmer lines in spectra of DA white dwarfs (WDs), as masking effects in measurements of the gravitational red shift in WDs, have been examined in det
Externí odkaz:
http://arxiv.org/abs/1506.04064
Publikováno v:
Physica A, 424 (2015) 130-141
Macroscopic properties of heterogeneous media are frequently modelled by regular lattice models, which are based on a relatively small basic cluster of lattice sites. Here, we extend one of such models to any cluster's size kxk. We also explore its m
Externí odkaz:
http://arxiv.org/abs/1409.4611
Autor:
Olchawa, W., Piasecki, R.
Publikováno v:
Comput. Mater. Sci., 98 (2015) 390-398
We report a fast, efficient and credible statistical reconstruction of any two-phase patterns of islands of miscellaneous shapes and poly-dispersed in sizes. In the proposed multi-scale approach called a weighted doubly-hybrid, two different pairs of
Externí odkaz:
http://arxiv.org/abs/1406.0037