Poslední příspěvky

  • AN EXPERIMENTAL ASSESSMENT OF THE PLATE HEAT EXCHANGER CHARACTERISTICS BY WILSON PLOT METHOD 

    Autor: Opatřil , Jan; Havlík , Jan; Bartoš , Ondřej; Dlouhý , Tomáš
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
    An aim of this paper is suggestion of the evaluation method based on the experimental data and the Wilson plot method for the Plate Heat Exchangers (PHE). For the purpose of the project the new experimental loop was built ...
  • A QUANTITATIVE EVALUATION OF THE WATER DISTRIBUTION IN A SOIL SAMPLE USING NEUTRON IMAGING 

    Autor: Šácha , Jan; Sněhota , Michal; Hovind , Jan
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
    This paper presents an empirical method by Kang et al. recently proposed for correcting two-dimensional neutron radiography for water quantification in soil. The method was tested on data from neutron imaging of the water ...
  • BACK TO BASICS: TOWARDS NOVEL COMPUTATION AND ARRANGEMENT OF SPATIAL SENSORY IN IMAGES 

    Autor: Wen , Wei; Khatibi , Siamak
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
    The current camera has made a huge progress in the sensor resolution and the lowluminance performance. However, we are still far from having an optimal camera as powerful as our eye is. The study of the evolution process ...
  • A METHOD FOR MEASURING THE SENSITIVITY OF BUILDING STRUCTURAL MEMBERS TO FIRE DECAY PHASES 

    Autor: Gernay , Thomas
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
    Firefighters face a major threat when intervening in a building during a fire: the possibility of structural collapse during the cooling phase of the fire, or soon thereafter. At present, this threat is amplified by the ...
  • ANALYSIS AND IMPLEMENTATION OF APPLICATION SCHEMAS FOR THE INSPIRE BUILDINGS THEME 

    Autor: Med , Michal; Souček , Petr
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
    Implementing the INSPIRE directive involves transforming various data themes into the structure and content given by Data Specifications published by the Joint Research Center of the European Commission. The data is to be ...
  • RESPONSE OF HIGHPERFORMANCE FIBRE REINFORCED CONCRETE REINFORCED BY TEXTILE REINFORCEMENT TO IMPACT LOADING 

    Autor: Vogel , Filip; Holčapek , Ondřej; Konvalinka , Petr
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
    Generally, cement composites like high-performance concrete (HPC) are very brittle. The resistance to the impact loading of the HPFRC and the HPFRC reinforced by the textile reinforcement are compared in this article. The ...
  • IMPACT OF PLASTIC DEFORMATION ON THE PROPERTIES OF A SELECTED ALUMINIUM ALLOY 

    Autor: Lišková , Anna; Lacková , Petra; Mihaliková , Mária; Kočiško , Róbert
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
    This paper reports on an experiment to assess the influence of plastic deformation on the microstructure and properties of EN AW 6012 (AlMgSiPb) aluminium alloy in two states. The first was the initial state with heat ...
  • EXPERIMENTAL EVALUATION OF WEDM MACHINED SURFACE WAVINESS 

    Autor: Mouralova , Katerina; Kovar , Jiri; Houska , Pavel
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
    Wire Electrical Discharge Machining (WEDM) an unconventional machining technology which has become indispensable in many industries. The typical morphology of a surface machined using the electrical discharge technology ...
  • OPTIMALIZATION OF AFTERBURNER CHANNEL IN BIOMASS BOILER USING CFD ANALYSIS 

    Autor: Pospíšil , Jiří; Lisý , Martin; Špiláček , Michal
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
    This contribution presents the results of parametrical studies focused on the mixing process in a small rectangular duct within a biomass boiler. The first study investigates the influence of a local narrowing located in ...
  • SIMULATION OF SURFACE HEATING FOR ARBITRARY SHAPE’S MOVING BODIES/SOURCES BY USING RFUNCTIONS 

    Autor: Plankovskyy , Sergiy; Shypul , Olga; Tsegelnyk , Yevgen; Tryfonov , Oleg; Golovin , Ivan
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
    The purpose of this article is to propose an efficient algorithm for determining the place of an action of a heat source with a given motion law for a body of an arbitrary shape using methods of analytical geometry. The ...
  • CONSTITUTIVE MODEL OF STEEL FIBRE REINFORCED CONCRETE SUBJECTED TO HIGH TEMPERATURES 

    Autor: Blesak , Lukas; Goremikins , Vadims; Wald , Frantisek; Sajdlova , Tereza
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
    Research on structural load-bearing systems exposed to elevated temperatures is an active topic in civil engineering. Carrying out a full-size experiment of a specimen exposed to fire is a challenging task considering not ...
  • CYCLIC STRESS ANALYSIS OF POLYESTER ARAMID POLYETHYLENE AND LIQUID CRYSTAL POLYMER YARNS 

    Autor: Vannucchi de Camargo , Felipe; Marcos Guilherme Eduardo, Carlos; Fragassa , Cristiano; Pavlovic , Ana
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
    Mooring ropes used in offshore oil platforms are exposed to a set of extreme environmental conditions that can be crucial to their behaviour in service. Considering the elevated mechanical demands on these ropes imposed ...
  • EXPERIMENTAL INVESTIGATION ON CHROMIUMVI REMOVAL FROM AQUEOUS SOLUTION USING ACTIVATED CARBON RESORCINOL FORMALDEHYDE XEROGELS 

    Autor: Oyedoh A., Eghe; Ekwonu C., Michael
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
    The adsorption of chromium(VI) metal ion in aqueous solutions by activated carbon resorcinol formaldehyde xerogels (ACRF) was investigated. The results showed that pore structure, surface area and the adsorbent surface ...
  • VERIFICATION AND VALIDATION OF NUMERICAL MODEL OF FIRE AND SMOKE DEVELOPMENT IN RAILWAY TUNNEL 

    Autor: Cabová , Kamila; Wald , František
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
    The paper describes verification and validation of numerical model of fire and smoke development in a railway tunnel carried out in numerical code Fire Dynamic Simulator. To evaluate a correctness of numerical solution of ...
  • TESTING THE ACCURACY OF MEASURED VALUES IN CONTINUOUS LONGTERM GEODETIC MONITORING 

    Autor: Vaněček , Jan; Štroner , Martin
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
    widespread used method. In this paper, an analysis of the accuracy and its changes over time of the measured values in continuous geodetic monitoring is presented. For the analysis, a set of data measured in the period of ...
  • FINITE ELEMENT MODELLING AND SIMULATION OF VEHICLE IMPACT ON STEEL SAFETY BARRIERS 

    Autor: Likhonina , Raissa
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
    This paper deals with a FEA simulation of the vehicle crash with steel safety barriers in ANSYS LS-DYNA® 15.0. Two types of safety barriers are used: JSNH4/H2 and JSAM-2/H2. A geometrical model of the barrier in the Modeler ...
  • ANALYSIS OF INTENSIVELY BLASTED ELECTRIC ARC BURNING IN THE ARC HEATER'S ANODE CHANNEL 

    Autor: Senk , Josef; Jakubova , Ivana; Laznickova , Ilona
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
    The paper deals with the description of the intensively blasted electric arc burning in Ar in the anode channel of the arc heater operated under various conditions. Directly measured experimental data (current, voltage, ...
  • ON GENERALIZATION OF SPECIAL FUNCTIONS RELATED TO WEYL GROUPS 

    Autor: Háková , Lenka; Tereszkiewicz , Agnieszka
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
    Weyl group orbit functions are defined in the context of Weyl groups of simple Lie algebras. They are multivariable complex functions possessing remarkable properties such as (anti)invariance with respect to the corresponding ...
  • DETERMINING THE ROLE OF INDIVIDUAL FLY ASH PARTICLES IN INFLUENCING THE VARIATION IN THE OVERALL PHYSICAL MORPHOLOGICAL AND CHEMICAL PROPERTIES OF FLY ASH 

    Autor: Haider , Usman; Bittnar , Zdenek; Kopecky , Lubomír; Šmilauer , Vít; Pokorny , Jaroslav; Zaleska , Martina; Prošek , Zdenek; Hrbek , Vladimír
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
    The properties of fly ashes vary because of the differences in the properties of their individual particles, and the determination of variation in these properties is of interest to the industries which use pulverized raw ...
  • SPECIFIC FEATURES OF THE OXYFUEL COMBUSTION CONDITIONS IN A BUBBLING FLUIDIZED BED 

    Autor: Skopec , Pavel; Hrdlička , Jan
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
    Oxyfuel combustion is a promising approach for capturing CO2 from power plants. This technology produces a flue gas with a high concentration of CO2. Our paper presents a verification of the oxyfuel combustion conditions ...

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