Acta Polytechnica. 2018, vol. 58, no.5

 

Zobrazují se záznamy 1-8 z 8

    • WEAR BEHAVIOUR OF VANES FOR A ROTARY VANE EXPANDER WITH VARIOUS GRAPHITE MATERIALS UNDER DRY SLIDING CONDITIONS 

      Autor: Vodička , Václav; Novotný , Václav; Mascuch , Jakub
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      This study presents tribological properties of various graphite materials of vanes for rotary vane expanders. A test device was developed in order to measure the wear and power dissipation under conditions similar to a ...

    • NEW APPROACH FOR ONLINE ARABIC MANUSCRIPT RECOGNITION BY DEEP BELIEF NETWORK 

      Autor: Samir , Benbakreti; Boukelif , Aoued
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      In this paper, we present a neural approach for an unconstrained Arabic manuscript recognition using the online writing signal rather than images. First, we build the database which contains 2800 characters and 4800 words ...

    • EFFECT OF IMPERATA CYLINDRICA REINFORCEMENT FORM ON THE TENSILE AND IMPACT PROPERTIES OF ITS COMPOSITES WITH RECYCLED LOW DENSITY POLYETHYLENE 

      Autor: Olusunmade Femi, Olusola; Bulus Emmanuel, Abba; Kashin Kelvin, Terwase
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      Composites of recycled low-density polyethylene obtained from waste water-sachets and imperata cylindrica were produced with particulate and long-fibre unidirectional mat reinforcements. Comparison was made of the tensile ...

    • ANALYSIS OF DALLARA T12 RACE CAR FRONT WING VIBRATIONS 

      Autor: Sorokin Alekseevich, Pavel; Khryakov Stanislavovich, Kirill; Gommers , Michiel
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      This work investigates aerodynamic elements’ vibrations of high-speed vehicles on the example of the Dallara T12 race car front wing. Made up energy spectrums of wing vibrations for three specific cases arising during ...

    • THE TIME DIFFERENCE IN EMISSION OF LIGHT AND PRESSURE PULSES FROM OSCILLATING BUBBLES 

      Autor: Vokurka , Karel
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      Oscillations of spark-generated bubbles are studied experimentally. In this work, an attention is paid to the time difference in the radiation of light flashes and pressure pulses from a bubble at the final stages of the ...

    • INTELLIGENT CONTROLLER FOR TRACKING A 14-INCH CELESTRON TELESCOPE 

      Autor: Attia A., Abdel-Fattah
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      The paper proposes a design of two fuzzy and Proportional-Integral-Derivative (PID) controllers for a position tracking of the 1400 Celestron telescope. The position responses; right ascension and declination in such a way ...

    • EFFECTS ON THE FINAL INTENSITY OF INPUT FORCES IN LONGBOLTS INSTALLED AT THE MINING OPERATION 2 AREA, OKD, INC. 

      Autor: Dvořák , Pavel; Jiránková , Eva
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      In the deep coal mines of OKD, Inc., both bolts and long bolts of different designs are used for the rock massif and steel arch support reinforcement. Continuous measurement of forces in 6 strand bolts and 1 cable bolt ...

    • MINIMAL NON-INTEGER ALPHABETS ALLOWING PARALLEL ADDITION 

      Autor: Legerský , Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      Parallel addition, i.e., addition with limited carry propagation has been so far studied for complex bases and integer alphabets. We focus on alphabets consisting of integer combinations of powers of the base. We give ...