Poslední příspěvky

  • Simulation of the acoustic wave propagation using a meshless method 

    Bajko, Jaroslav; Niedoba, Pavel; Čermák, Libor; Jícha, Miroslav (EDP Sciences, 2017-05-12)
    This paper presents numerical simulations of the acoustic wave propagation phenomenon modelled via Linearized Euler equations. A meshless method based on collocation of the strong form of the equation system is adopted. ...
  • Local controllability of trident snake robot based on sub-Riemannian extremals 

    Hrdina, Jaroslav (Universit`a del Salento, 2017-05-24)
    To solve trident snake robot local controllability by differential geometry tools, we construct a privileged system of coordinates with respect to the distribution given by Pffaf system based on local nonholonomic conditions ...
  • On a product of universal hyperalgebras 

    Šlapal, Josef; Chaisansuk, Nitima (Faculty of Mathematics and Computer Science, Ovidius University, 2015-05-15)
    We introduce and study a new operation of product of universal hyperalgebras which lies, with respect to set inclusion, between the cartesian product of the hyperalgebras and the cartesian product of their idempotent hulls. ...
  • On the stability of some properties of partial algebras under powers 

    Šlapal, Josef; Leeratanavalee, Prof Sorasak; Chaisansuk, Nitima (SAV, 2014-04-01)
    In the paper, we study eight properties of partial algebras most of which are related to diagonality. For each of the properties, we give sufficient conditions under which this property is preserved by powers of partial algebras.
  • Topological structuring of the digital plane 

    Šlapal, Josef (DMTCS, 2013-08-01)
    We discuss an Alexandroff topology on the digital plane having the property that its quotient topologies include the Khalimsky and Marcus-Wyse topologies. We introduce a further quotient topology of the topology discussed and ...
  • Applications of the discontinuous Galerkin method to propagating acoustic wave problems 

    Nytra, Jan; Čermák, Libor; Jícha, Miroslav (SAGE Publishing, 2017-06-16)
    The purpose of this article is to demonstrate that the discontinuous Galerkin method is efficient and suitable to solve linearized Euler equations, modelling sound propagation phenomena.
  • Funkcionální analýza s aplikacemi ve zpracování signálů 

    Veselý, Vítězslav; Rajmic, Pavel (Vysoké učení technické v Brně, 2015-01-01)
    Látka je rozčleněna do sedmi kapitol s cílem podat ucelený výklad základů lineární funkcionální analýzy, který čtenáři umožní hlouběji pochopit matematickou podstatu a usnadnit tak následné studium podle aplikačního zaměření. ...
  • Three-axes error modeling based on second order dual numbers 

    Ing., Dipl.-Ing Michal Holub, Ph.D.; Hrdina, Jaroslav; Vašík, Petr; Vetiška, Jan (Springer-Verlag, 2015-11-17)
    The aim of the paper is to employ the dual numbers in the multi axes machine error modelling in order to apply the algebraic methods in computations. The calculus of higher order dual numbers allows us to calculate with ...
  • Reconstruction of an ellipse from its raster image 

    Hrdina, Jaroslav; Pavlík, Jan (Academic Publications, Ltd, 2015-04-14)
    Motivated by practical application, we investigate the ways how to obtain a description of an ellipse whose circumscribed rectangle is known exactly and whose coordinates of touching points are known up to a certain ...
  • Komprimované snímání perfúzního zobrazování v MRI 

    Mangová, Marie; Rajmic, Pavel; Jiřík, Radovan (Společnost elektrotechnického inženýrství, 2013-11-20)
    Perfúzní zobrazování v MRI je lékařská diagnostická metoda, kdy pacientovi podáme kontrastní látku a poté průběžně sledujeme průběh její koncentrace v postižené oblasti. Tuto závislost můžeme přibližně matematicky popsat ...