Poslední příspěvky

  • MECHANICAL PROPERTIES OF PVA NANOFIBER TEXTILES WITH INCORPORATED NANODIAMONDS COPPER AND SILVER IONS 

    Autor: Indrová , Kateřina; Prošek , Zdeněk; Topič , Jaroslav; Ryparová , Pavla; Nežerka , Václav; Tesárek , Pavel
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
    The unique properties of nanotextiles based on poly(vinyl-alcohol) (PVA) manufactured using electrospinning method have been known and exploited for many years. Recently, the enrichment of nanofiber textiles with nanoparticles, ...
  • EFFECT OF PVA MODIFICATION ON PROPERTIES OF CEMENT COMPOSITES 

    Autor: Topič , Jaroslav; Prošek , Zdeněk; Indrová , Kateřina; Plachý , Tomáš; Nežerka , Václav; Kopecký , Lubomír; Tesárek , Pavel
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
    Polymers are used for modification of the cement-based composites and others building materials since the thirties of 20th century. Based on the conclusions of recent studies, it is assumed that even water soluble polymers ...
  • MICROSTRUCTURE DESCRIPTION AND MICROMECHANICAL PROPERTIES OF SPRUCE WOOD 

    Autor: Prošek , Zdeněk; Králík , Vlastimil; Topič , Jaroslav; Nežerka , Václav; Indrová , Kateřina; Tesárek , Pavel
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
    The knowledge about the microstructure and morphology of individual phases also allows an artificial modification of the material, or its processing, to produce engineered products with required properties. The purpose of ...
  • HIGHTEMPERATURE GASIFICATION OF RDF WASTE AND MELTING OF FLY ASH OBTAINED FROM THE INCINERATION OF MUNICIPAL WASTE 

    Autor: Lázár , Marián; Čarnogurská , Mária; Lengyelová , Marta; Korba , Ján
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
    Objective of this paper is to describe innovative solutions of thermal processing of selected components of municipal waste (so-called RDF waste) using low-ionized depended plasma arc generated by a progressive and promising ...
  • ELECTROSTATIC ION THRUSTERS TOWARDS PREDICTIVE MODELING 

    Autor: Duras , Julia; Kalentev , Oleksander; Schneider , Ralf; Matyash , Konstantin; Lüskow Felix, Karl; Geiser , Jürgen
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
    For satellite missions, thrusters have to be qualified in large vacuum vessels to simulate space environment. One caveat of these experiments is the possible  modification of the beam properties due to the interaction of ...
  • INITIAL FOLLOWUP OF OPTICAL TRANSIENTS WITH COLORES USING THE BOOTES NETWORK 

    Autor: Caballero-Garcia D., Maria; Jelinek , M.; Castro-Tirado , A.; Hudec , R.; Cunniffe , R.; Rabaza , O.; Sabau-Graziati , L.
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
    The Burst Observer and Optical Transient Exploring System (BOOTES) is a network of telescopes that allows the continuous monitoring of transient astrophysical sources. It was originally devoted to the study of the optical ...
  • OPERATION MODES AND CHARACTERISTICS OF PLASMA DIPOLE ANTENNA 

    Autor: Bogachev Nikolaevich, Nikolay; Bogdankevich , Irina L.; Gusein-Zade , Namik G.; Sergeychev , Konstantin F.
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
    Existence modes of  surface electromagnetic wave on a plasma cylinder, operating modes and characteristics of the plasma antenna were studied in this paper. Solutions of the dispersion equation of surface wave were obtained ...
  • DIFFUSE DBD IN ATMOSPHERIC AIR AT DIFFERENT APPLIED PULSE WIDTHS 

    Autor: Shershunova Alexandrovna, Ekaterina; Malashin , Maxim; Moshkunov , Sergei; Khomich , Vladislav
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
    The paper deals with the realization and the diagnostics of the volume diffuse dielectric barrier discharge in 1-mm air gap when applying high voltage rectangular pulses to the electrodes. The effect of the applied pulse ...
  • ISING MODEL SIMULATIONS AS A TESTBED OF NUCLEATION THEORY 

    Autor: Kulveit , Jan
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
    In this short review article we discuss the use of Ising lattice model as a testbed for improvement of theory of both homogeneous and heterogeneous nucleation theory. First we briefly overview the classical nucleation ...
  • SIMULATION OF RADIATIVE HEAT FLUX DISTRIBUTION UNDER AN INFRARED HEAT EMITTER 

    Autor: Loufek , Jan; Královcová , Jiřina
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
    The article deals with a heat radiation model used for heat flux calculation of an infrared heater. In general, we consider a system consisting of a set of objects, whereas a single object could stand for a heater, a ...
  • BIPERIODIC FIBONACCI WORD AND ITS FRACTAL CURVE 

    Autor: Ramírez Luis, José; Rubiano Nevardo, Gustavo
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
    In this paper, we introduce a word-combinatorial interpretation of the biperiodic Fibonacci sequence. We study some properties of this new family of infinite words. Moreover,  we associate to this family of words a family ...
  • AN INTERPOLATION METHOD FOR DETERMINING THE FREQUENCIES OF PARAMETERIZED LARGESCALE STRUCTURES 

    Autor: Nasisi , Salvatore; Valášek , Michael; Vampola , Tomáš
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
    Parametric Model Order Reduction (pMOR) is an emerging category of models developed with the aim of describing reduced first and second-order dynamical systems. The use of a pROM turns out useful in a variety of applications ...
  • OPERATING SPECIFICATIONS OF CATALYTIC CLEANING OF GAS FROM BIOMASS GASIFICATION 

    Autor: Lisý , Martin; Baláš , Marek; Špiláček , Michal; Skála , Zdeněk
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
    The paper focuses on the theoretical description of the cleaning of syngas from biomass and waste gasification using catalytic methods, and on the verification of the theory through experiments. The main obstruction to ...
  • MULTILAYER COATINGS Ti/TiN Cr/CrN AND W/WN DEPOSITED BY MAGNETRON SPUTTERING FOR IMPROVEMENT OF ADHESION TO BASE MATERIALS 

    Autor: Horník , Jakub; Krum , Stanislav; Tondl , David; Puchnin , Maxim; Sachr , Pavel; Cvrček , Ladislav
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
    The paper deals with evaluation of single and multilayer layer PVD coatings based on Cr and Ti widely used in tool application. Additionally, W and WN based coating which are not so widespread were designed and deposited ...
  • FINITE ELEMENT ANALYSIS OF AORTAL BIFURCATION 

    Autor: Kronek , Jakub; Žitný , Rudolf
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
    Arterial bifurcations loaded by internal pressure represent significant stress concentrators. Increased mechanical stress inside arterial wall probably accelerates pathogenic processes at these places. Stress concentration ...
  • CALCULATION OF STRESS AND DEFORMATION IN FUEL ROD CLADDING DURING PELLETCLADDING INTERACTION 

    Autor: Halabuk , Dávid; Martinec , Jiří
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
    The elementary parts of every fuel assembly, and thus of the reactor core, are fuel rods. The main function of cladding is hermetic separation of nuclear fuel from coolant. The fuel rod works in very specific and difficult ...
  • ANALYTICAL METHODS FOR CALCULATING FAN AERODYNAMICS 

    Autor: Dostal , Jan; Kuzel , Jan
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
    This paper presents results obtained between 2010 and 2014 in the field of fan aerodynamics at the Department of Composite Technology at the VZLÚ aerospace research and experimental institute in Prague – Letnany. The need ...
  • CFD ANALYSIS OF THE SPACER GRIDS AND MIXING VANES EFFECT ON THE FLOW IN THE CHOSEN PART OF THE TVSAT FUEL ASSEMBLY 

    Autor: Juklíček , Jakub; Železný , Václav
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
    CFD is a promising and widely spread tool for a flow simulation in nuclear reactor fuel assemblies. One of the limiting factors is the complicated geometry of a spacer grid. It leads to the computational mesh with high ...
  • ANALYSIS OF MECHANICAL PROPERTIES OF HYDROTHERMALLY CURED HIGH STRENGTH CEMENT MATRIX FOR TEXTILE REINFORCED CONCRETE 

    Autor: Holčapek , Ondřej; Vogel , Filip; Konvalinka , Petr
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
    The main objective of this article is to describe the influence of hydrothermal curing conditions in an autoclave device (different pressure and temperature), which took place at various ages of a fresh mixture (cement ...
  • TREATMENT OF NATURAL GAS BY ADSORPTION OF CO2 

    Autor: Hádková , Kristýna; Tekáč , Viktor; Ciahotný , Karel; Beňo , Zdeněk; Vrbová , Veronika
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
    Apart from burning, one of the possible uses of natural gas is as a fuel for motor vehicles. There are two types of fuel from natural gas — CNG (Compressed Natural Gas) or LNG (Liquefied Natural Gas). Liquefaction of natural ...

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