21 citations · 74 across the 12 of their papers we have counts for
12 papers
A modified cellular automaton using activation and inhibition regions geometrically compatible with biaxial anisotropy
R. Piasecki, W. Olchawa, D. Fraczek
Young's cellular automaton, recently applied to study the spatiotemporal evolution of binary patterns for favorable/hostile environments, has now been modified from a different poi…
A Two-Stage Reconstruction of Microstructures with Arbitrarily Shaped Inclusions
R. Piasecki, W. Olchawa, D. Frączek +1
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 i…
Sensitivity to initial conditions in an extended activator-inhibitor model for the formation of patterns
R. Piasecki, W. Olchawa, K. Smaga
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 allow…
Statistical Reconstruction of Microstructures Using Entropic Descriptors
R. Piasecki, W. Olchawa, D. Frączek +1
We report a multiscale approach of broad applicability to stochastic reconstruction of multiphase materials, including porous ones. The approach devised uses an optimization method…
Controlling spatial inhomogeneity in prototypical multiphase microstructures
D. Frączek, R. Piasecki, W. Olchawa +1
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…
Low-cost approximate reconstructing of heterogeneous microstructures
W. Olchawa, R. Piasecki, R. Wiśniowski +1
We propose an approximate reconstruction of random heterogeneous microstructures using the two-exponent power-law (TEPL). This rule originates from the entropic descriptor (ED) tha…
Entropic descriptor based reconstruction of three-dimensional porous microstructures using a single cross-section
D. Frączek, W. Olchawa, R. Piasecki +1
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 des…
On multi-scale percolation behaviour of the effective conductivity for the lattice model with interacting particles
R. Wiśniowski, W. Olchawa, D. Frączek +1
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 m…
Pressure Shift and Gravitational Red Shift of Balmer Lines in White Dwarfs. Rediscussion
J. Halenka, W. Olchawa, J. Madej +1
The Stark-induced shift and asymmetry, the so-called pressure shift (PS) of and Balmer lines in spectra of DA white dwarfs (WDs), as masking effects in measurements of…
On multi-scale percolation behaviour of the effective conductivity for the lattice model
W. Olchawa, R. Wiśniowski, D. Frączek +1
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 exte…
Speeding up of microstructure reconstruction: II. Application to patterns of poly-dispersed islands
W. Olchawa, R. Piasecki
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-…
Speeding up of microstructure reconstruction: I. Application to labyrinth patterns
R. Piasecki, W. Olchawa
Recently, entropic descriptors based the Monte Carlo hybrid reconstruction of the microstructure of a binary/greyscale pattern has been proposed (Piasecki 2011 Proc. R. Soc. A 467…