Acta Polytechnica. 2015, vol. 55, no. 1

 

Now showing items 1-10 of 10

    • EFFECT OF PVA MODIFICATION ON PROPERTIES OF CEMENT COMPOSITES 

      Author: 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 

      Author: 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 ...

    • OPERATION MODES AND CHARACTERISTICS OF PLASMA DIPOLE ANTENNA 

      Author: 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 ...

    • SIMULATION OF RADIATIVE HEAT FLUX DISTRIBUTION UNDER AN INFRARED HEAT EMITTER 

      Author: 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 ...

    • DIFFUSE DBD IN ATMOSPHERIC AIR AT DIFFERENT APPLIED PULSE WIDTHS 

      Author: 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 

      Author: 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 ...

    • BIPERIODIC FIBONACCI WORD AND ITS FRACTAL CURVE 

      Author: 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 ...

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

      Author: 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, ...

    • HIGH-TEMPERATURE GASIFICATION OF RDF WASTE AND MELTING OF FLY ASH OBTAINED FROM THE INCINERATION OF MUNICIPAL WASTE 

      Author: 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 

      Author: 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 ...