The problem of Rayleigh waves polarized in a plane of symmetry of an anisotropic linear elastic medium is investigated in terms of displacements. The implicit secular equation is derived and subsequently rearranged into a system of three polynomial equations, which is convenient for...

We study the hard and electrically conductive multicomponent diboride Ti0.25Zr0.25Hf0.25Ta0.25B2 with high thermal stability by ab-initio calculations. We focus on the effect of defects (either vacancies or C atoms, both relevant for numerous experiments including our own) on material characteristics....

The thermal stability and oxidation behavior of metastable W–Zr thin-film alloys with up to 83 at. % Zr were thoroughly investigated with a focus on the effect of gradual substitution of Zr for W. The films were prepared by dc magnetron co-sputtering of W and Zr targ...

The weak and strong comparison principles (WCP and SCP, respectively) are investigated for quasilinear elliptic boundary value problems with the p-Laplacian in one space dimension, Δp(u) =d/dx(|u'|p−2u'). We treat the “degenerate” case of 2 <p <∞ and allow also for the non...

In this paper, we characterize all pairs of (possibly disconnected) graphs R, S such that (i) every 2‐connected {R, S}‐free graph of sufficiently large order has a 2‐factor, and (ii) every connected {R, S}‐free graph of sufficiently large order with minimum degree at least two...

The colouring defect of a cubic graph, introduced by Steffen in 2015, is the minimum number of edges that are left uncovered by any set of three perfect matchings. Since a cubic graph has defect 0 if and only if it is 3-edge-colourable, this invariant can measure...

We investigate automorphism groups of planar graphs. The main result is a complete recursive description of all abstract groups that can be realized as automorphism groups of planar graphs. The characterization is formulated in terms of inhomogeneous wreath products. In the proof, we&#x...

The reversible semiconductor-to-metal transition of vanadium dioxide (VO2) makes VO2-based coatings a promising candidate for thermochromic smart windows, reducing the energy consumption of buildings. We report on transfer of the sputter technique for deposition of strongly thermochromic ZrO2/W-doped ...

The present paper is devoted to the further development of the discrete theory of Riemann surfaces. This theory considers finite graphs as analogous of Riemann surfaces and branched coverings of graphs as holomorphic maps. The main object of investigation are automorphism groups of ...

The paper is devoted to the homogenization of the vibroacoustic fluid-structure interaction problem in a layer which consists of a perforated plate and a surrounding acoustic fluid. As the major novelty of the problem, we consider a plate with metamaterial properties due to embedde...

The use of biologically derived vessels as small-diameter vascular grafts in vascular diseases is currently intensely studied. Vessel decellularization provides a biocompatible scaffold with very low immunogenicity that avoids immunosuppression after transplantation. Good scaffold preservation is important as&#...

The two-scale computational homogenization method is proposed for modeling of locally periodic fluid-saturated media subjected to a large deformation induced by quasistatic loading. The periodic heterogeneities are relevant to the mesoscopic scale at which a double porous medium constituted by a&...

Vertically unstable transforaminal sacral fractures can be stabilized with several types of transiliac internal fixators (TIFI): the classical one (TIFI-C), the supraacetabular one (TIFI-A) and by dual application of TIFI (DTIFI). Pelvic models made of solid foam (Sawbones 1301) were used in...

Cavity ring-down spectroscopy combined with laser induced fluorescence was applied during a high-power impulse magnetron sputtering of Ti target to determine the time evolutions and spatial distributions of Ti atom and ion densities of levels belonging to the ground state multiplets (GSM)&#x...

The presented paper is devoted to studying the dynein molecular motor and its stochastic description. The model aims to obtain good results comparable to literature sources qualitatively. We choose the Hoover-Holian oscillator to describe the dynein behaviour of each of its legs. It...

We study a new family of sign-changing solutions to the stationary nonlinear Schrodinger equation −Δv + qv = |v|^(p−2) v, in R3, with 2 < p < ∞ and q > 0 or q=0. These solutions are spiraling in the sense that they are not axially symmetric but inv...

Thermochromic coatings based on vanadium dioxide exhibit great potential in various fields, including smart energy-saving windows with temperature-dependent transmittance in the infrared at preserved transmittance in the visible. However, these promises come with challenges concerning the low-temperature prepar...

The main goal of this work is to investigate the number and energy of the arriving atoms to the growing films with respect to the discharge voltage at a given input power using Monte-Carlo simulation for light and heavy elements (C, Al, Ti, Zr, Hf, Ta, W, and&#x...

This work presents a pipeline for processing digitally scanned documents, reading their textual content, and storing it in a dataset for the purpose of information retrieval. The pipeline is able to handle images of various quality, whether they were obtained by a digital scanner&#...

The class E(k) of hypergraphs with a k-exclusive sum labelling is hereditary, but non-trivial to characterise even for k=1. Our main result is a complete description of the minimal forbidden induced subhypergraphs of E(1) that are 3-uniform with maximum vertex degree 2. We also...