Vydavatel: ČVUT

Redakce: Ústřední knihovna ČVUT

Časopis Acta Polytechnica vychází v režimu otevřeného přístupu a je publikován na platformě Open Journal Systems. Vychází šest čísel ročně, články jsou publikovány výhradně v anglickém jazyce. Článkům časopisu je od č. 5, roč. 52 (2013) přidělován identifikátor DOI (digital object identifier).

zařazen ve: Scopus (od roč. 51/2011), Directory of Open Access Journals (DOAJ)

ISSN 1210-2709 (print), ISSN 1805-2363 (online)

web časopisu: Acta Polytechnica

Podkomunita v komunitě

Poslední příspěvky

  • A METHOD FOR EVALUATION OF NONUNIFORM RADIANTCONVECTIVE LOAD ON HUMAN BODY DURING MENTAL WORK 

    Autor: Prokšová Zuská , Lenka; Kabrhel , Michal
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
    The objective of this study was to develop a documentation for the amendment of the microclimatic part of the Czech Government Regulation, particularly in a non-uniform radiant-convective load evaluation. Changes in ...
  • UNDERGROUND AIR DUCT TO CONTROL RISING MOISTURE IN HISTORIC BUILDINGS: IMPROVED DESIGN AND ITS DRYING EFFICIENCY 

    Autor: Pazderka , Jiří; Hájková , Eva; Jiránek , Martin
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
    The underground air ducts along peripheral walls of a building are a remediation method, which principle is to enable an air flow along the moist building structure’s surface to allow a sufficient evaporation of moisture ...
  • CONTRAROTATING PROPELLER AERODYNAMICS SOLVED BY A 3D PANEL METHOD WITH COUPLED BOUNDARY LAYER 

    Autor: Štorch , Vít; Nožička , Jiří
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
    The aerodynamics of contra-rotating propellers is a complex three-dimensional problem of an unsteady flow, which is often approached by assuming numerous simplifications. Presented computational model combines a 3D panel ...
  • RELATION BETWEEN LEFT VENTRICULAR UNLOADING DURING ECMO AND DRAINAGE CATHETER SIZE ASSESSED BY MATHEMATICAL MODELING 

    Autor: Strunina , Svitlana; Hozman , Jiri; Ostadal , Petr
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
    The flow-dependent left ventricle overload is a well-known complication of the veno-arterial extracorporeal membrane oxygenation in a severe cardiogenic shock, which leads to a distension of the left ventricle and, frequently, ...
  • STRENGHT AND DYNAMIC ANALYSIS OF A STRUCTURAL NODE LIMITING THE MULTIOUTPUT GEAR MECHANISM 

    Autor: Kačalová , Mária; Pavlenko , Slavko
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
    The rapidly advancing technological development leads to designing and researching a new multi- output gear mechanism. The investigated new double-output gear mechanism has two output coaxial shafts located against the ...
  • ON THE SPECTRUM OF THE ONEDIMENSIONAL SCHRÖDINGER HAMILTONIAN PERTURBED BY AN ATTRACTIVE GAUSSIAN POTENTIAL 

    Autor: Fassari , Silvestro; Gadella , Manuel; Nieto Miguel, Luis; Rinaldi , Fabio
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
    We propose a new approach to the problem of finding the eigenvalues (energy levels) in the discrete spectrum of the one-dimensional Hamiltonian with an attractive Gaussian potential by using the well-known Birman-Schwinger ...
  • ON SELFSIMILARITIES OF CUTANDPROJECT SETS 

    Autor: Masáková , Zuzana; Mazáč , Jan
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
    Among the commonly used mathematical models of quasicrystals are Delone sets constructed using a cut-and-project scheme, the so-called cut-and-project sets. A cut-and-project scheme (L,π1, π2) is given by a lattice L in Rs ...
  • THE ANALYSIS OF IMAGES IN NPOINT GRAVITATIONAL LENS BY METHODS OF ALGEBRAIC GEOMETRY 

    Autor: Kotvytskiy , Albert; Bronza , Semen; Shablenko , Vladimir
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
    This paper is devoted to the study of images in N-point gravitational lenses by methods of algebraic geometry. In the beginning, we carefully define images in algebraic terms. Based on the definition, we show that in this ...
  • ON THE COMMON LIMIT OF THE PTSYMMETRIC ROSEN–MORSE II AND FINITE SQUARE WELL POTENTIALS 

    Autor: Kovács , József; Lévai , Géza
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
    Two PT-symmetric potentials are compared, which possess asymptotically finite imaginary components: the PT-symmetric Rosen-Morse II and the finite PT-symmetric square well potentials. Despite their different mathematical ...
  • NONUNITARY TRANSFORMATION OF QUANTUM TIMEDEPENDENT NONHERMITIAN SYSTEMS 

    Autor: Maamache , Mustapha
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
    We provide a new perspective on non-Hermitian evolution in quantum mechanics by emphasizing the same method as in the Hermitian quantum evolution. We first give a precise description of the non unitary transformation  and ...
  • LAMBERT FUNCTION METHODs TO STUDY LASER DYNAMICS WITH TIMEDELAYED FEEDBACK 

    Autor: Joglekar N, Yogesh; Vemuri , Gautam; Wilkey , Andrew
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
    Time-delayed differential equations arise frequently in the study of nonlinear dynamics of lasers with optical feedback and because the analytical solution of such equations can be intractable, one resorts to numerical ...
  • FUNCTIONAL REALIZATIONS OF LIE ALGEBRAS AS NOETHER POINT SYMMETRIES OF SYSTEMS 

    Autor: Campoamor-Stursberg , Rutwig
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
    Functional realizations of Lie algebras are applied to the problem of determining Lie and Noether point symmetries of Lagrangian systems in N dimensions, particularly in the plane. This encompasses both the case of ...
  • ALGEBRAIC DESCRIPTION OF SHAPE INVARIANCE REVISITED 

    Autor: Ohya , Satoshi
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
    We revisit the algebraic description of shape invariance method in one-dimensional quantum mechanics. In this note we focus on four particular examples: the Kepler problem in flat space, the Kepler problem in spherical ...
  • On the spectrum of the onedimensional Schrodinger Hamiltonian perturbed by an attractive Gaussian potential 

    Autor: Fassari , S.; Gadella , M.; Rinaldi , F.; Nieto M., L.
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
    We propose a new approach to the problem of nding the eigenvalues (energy levels)
  • CRYPTOHERMITIAN APPROACH TO THE KLEIN–GORDON EQUATION 

    Autor: Semoradova , Iveta
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
    We explore the Klein-Gordon equation in the framework of crypto-Hermitian quantum mechanics. Solutions to common problems with probability interpretation and indefinite inner product of the Klein-Gordon equation are proposed.
  • LIE ALGEBRA REPRESENTATIONS AND RIGGED HILBERT SPACES: THE SO2 CASE 

    Autor: Celeghini , Enrico; Gadella , Manuel; del Olmo A, Mariano
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
    It is well known that related with the irreducible representations of the Lie group SO(2) we find a discrete basis as well a continuous one. In this paper we revisited this situation under the light of  Rigged Hilbert ...
  • PLATFORM WITH CAMERA SYSTEM FOR MEASUREMENT OF COMPENSATORY MOVEMENTS OF SMALL ANIMALS 

    Autor: Kutílek , Patrik; Škoda , David; Hýbl , Ján; Černý , Rudolf; Frynta , Daniel; Landová , Eva; Frýdlová , Petra; Kurali , Aniko; Doskočil , Radek; Křivánek , Václav
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
    The article introduces systems and methods of a controllable rotational platform used for measuring compensatory movement of small animals. The system, based on a camera subsystem, is located on a mechanical platform powered ...
  • PARAMETERS EFFECTING FORCED VORTEX FORMATION IN BLADE PASSAGEWAY OF DYNAMIC AIR CLASSIFIER 

    Autor: Adamčík , Martin; Svěrák , Tomáš; Peciar , Peter
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
    Air classification of particulate materials is a method of classifying particles into coarse and fine fractions based on their size, density, or shape. Performance of the rotor air classifier is affected by operating ...
  • SIMPLE MODELS OF THREE COUPLED PT SYMMETRIC WAVE GUIDES ALLOWING FOR THIRDORDER EXCEPTIONAL POINTS 

    Autor: Schnabel , Jan; Cartarius , Holger; Main , Jörg; Wunner , Günter; Heiss , Walter Dieter
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
    We study theoretical models of three coupled wave guides with a PT-symmetric distribution of gain and loss. A realistic matrix model is developed in terms of a three-mode expansion. By comparing with a previously postulated ...
  • HIGHLY ACCURATE CALCULATION OF THE REAL AND COMPLEX EIGENVALUES OF ONEDIMENSIONAL ANHARMONIC OSCILLATORS 

    Autor: Fernández Marcelo, Francisco; Garcia , Javier
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
    We draw attention on the fact that the Riccati-Padé method developed some time ago enables the accurate calculation of bound-state eigenvalues as well as of resonances embedded either in the continuum or in the discrete ...

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