Search Results - "Olchawa, W."

Stabilization of 1D solitons by fractional derivatives in systems with quintic nonlinearity by Stephanovich, V. A., Olchawa, W.

“…We study theoretically the properties of a soliton solution of the fractional Schrödinger equation with quintic nonlinearity. Under “fractional” we understand…”
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1D solitons in cubic-quintic fractional nonlinear Schrödinger model by Stephanovich, V. A., Olchawa, W., Kirichenko, E. V., Dugaev, V. K.

“…We examine the properties of a soliton solution of the fractional Schrö dinger equation with cubic-quintic nonlinearity. Using analytical (variational) and…”
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Speeding up of microstructure reconstruction: II. Application to patterns of poly-dispersed islands by Olchawa, W., Piasecki, R.

“…[Display omitted] •A weighted doubly-hybrid method of statistical reconstruction of patterns is reported.•The weighting factors account in part for an…”
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Low-cost approximate reconstructing of heterogeneous microstructures by Olchawa, W., Piasecki, R., Wiśniowski, R., Frączek, D.

“…[Display omitted] •A two-exponent power-law (TEPL) based on the entropic measure of spatial inhomogeneity is found.•The model of overlapping spheres of a…”
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A new approach to determination of the asymmetry parameter of Stark-broadened isolated spectral lines by Bartecka, A., Olchawa, W., Bacławski, A., Musielok, J.

“…A new approach to evaluation of asymmetry parameters of Stark-broadened isolated spectral lines is presented. The procedure is discussed on the example of the…”
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Inhomogeneity tensors of ion microfield in Debye plasma at neutral emitter by HALENKA, J, OLCHAWA, W

“…A method of calculation of inhomogeneity microfield tensors in Debye plasma, using the Mayer-Mayer cluster expansion, is presented. The octupole inhomogeneity…”
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Stark broadening of hydrogen spectral lines with fine structure effects by OLCHAWA, W, OLCHAWA, R, GRABOWSKI, B

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A critical analysis of the advanced generalized theory: Applicability and applications by Alexiou, S., Griem, H.R., Halenka, J., Olchawa, W.

“…A recent series of theoretical works (“advanced generalized theory”) has been proposed and applied to the analysis of hydrogen lines, particularly H α in…”
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Effective electrical conductivity of microstructural patterns of binary mixtures on a square lattice in the presence of nearest-neighbour interactions by Wiśniowski, R., Olchawa, W.

“…The effective conductivity and percolative behaviour of microstructural patterns of binary mixtures are studied. Microstructure patterns are not entirely…”
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Stark-Broadening Studies of N(I) Multiplet 3p 4 P o -3d 4 D at 1052.630 nm by Bartecka, A., Bacławski, A., Olchawa, W.

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On multi-scale percolation behaviour of the effective conductivity for the lattice model with interacting particles by Wiśniowski, R., Olchawa, W., Frączek, D., Piasecki, R.

“…Recently, the effective medium approach (EMA) using 2×2 basic cluster of model lattice sites to predict the conductivity of interacting microemulsion droplets…”
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On multi-scale percolation behaviour of the effective conductivity for the lattice model by Olchawa, W., Wiśniowski, R., Frączek, D., Piasecki, R.

“…Macroscopic properties of heterogeneous media are frequently modelled by regular lattice models, which are based on a relatively small basic cluster of lattice…”
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Experimental and theoretical Stark broadening studies of the hydrogen Paschen beta line by Wujec, T, Olchawa, W, Halenka, J, Musielok, J

“…Experimental and theoretical Stark broadening studies of the Paschen beta line of hydrogen (lambda=1.28 microm) are reported. Line shape measurements were…”
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A modified cellular automaton using activation and inhibition regions geometrically compatible with biaxial anisotropy by Piasecki, R, Olchawa, W, Fraczek, D

“…Young's cellular automaton, recently applied to study the spatiotemporal evolution of binary patterns for favorable/hostile environments, has now been modified…”
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Computer simulations of hydrogen spectral line shapes in dense plasmas by Olchawa, Wiesław

“…A new formalism has been elaborated for calculations of hydrogen line profiles emitted by dense plasmas. The main equation of this formalism has a similar form…”
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A Two-Stage Reconstruction of Microstructures with Arbitrarily Shaped Inclusions by Piasecki, R, Olchawa, W, Frączek, D, Bartecka, A

“…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…”
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Sensitivity to initial conditions in an extended activator-inhibitor model for the formation of patterns by Piasecki, R, Olchawa, W, Smaga, K

“…Acta Phys. Pol. B, 49 (2018) 961-979 Despite simplicity, the synchronous cellular automaton [D.A. Young, Math. Biosci. 72, 51 (1984)] enables reconstructing…”
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Analysis of the accuracy of computer simulations in calculations of the Stark broadening of hydrogen Ly α, Ly β and Ly γ lines in plasmas by Halenka, J., Olchawa, W.

“…An analysis of the accuracy of numerical methods and physical models, applied in computer simulations of hydrogen line profiles, formed in plasmas, has been…”
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Speeding up of microstructure reconstruction: II. Application to patterns of poly-dispersed islands by Olchawa, W, Piasecki, R

“…Comput. Mater. Sci., 98 (2015) 390-398 We report a fast, efficient and credible statistical reconstruction of any two-phase patterns of islands of…”
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Statistical Reconstruction of Microstructures Using Entropic Descriptors by Piasecki, R, Olchawa, W, Frączek, D, Wiśniowski, R

“…Transp Porous Med 125 (2018) 105-125; [Special Issue on Reconstruction of Porous Media and Materials and Its Applications, Issue Editors: Pejman Tahmasebi,…”
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