Prohlížení Acta Polytechnica dle názvu

Zobrazují se záznamy 84-103 z 880

    • Analysis of parameters important for indirect drying of biomass fuel 

      Autor: Sabatini, Michel; Havlík, Jan; Dlouhý, Tomáš
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      This paper focuses on biomass drying for the design and operation of an indirect dryer used in a biomass power plant. Indirect biomass drying is not as well described process as direct drying, especially when used for the ...

    • ANALYSIS OF STATIC ANGLE OF REPOSE WITH RESPECT TO POWDER MATERIAL PROPERTIES 

      Autor: Macho , Oliver; Demková , Karin; Gabrišová , Ľudmila; Čierny , Matúš; Mužíková , Jitka; Galbavá , Paulína; Nižnanská , Žofia; Blaško , Jaroslav; Peciar , Peter; Fekete , Roman; Peciar , Marián
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
      This paper investigates the Angle of Repose (AoR) of powder materials with respect to their morphological and rheological properties. Glass beads, sand, flour and semolina of different particle sizes were used as the ...

    • ANALYSIS OF THE ACCURACY OF FIBRE-OPTIC STRAIN GAUGES 

      Autor: Jiroutová , Dita; Vokáč , Miroslav
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      In recent years, the field of structure monitoring has been making increasing use of systems based on fiber-optic technologies. Fiber-optic technology offers many advantages, including higher quality measurements, greater ...

    • ANALYSIS OF THE MACRO EXPERIMENT DATA TO COMPARE PARTICLE ARRIVAL TIMES UNDER GRAN SASSO 

      Autor: Ronga, Francesco
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The claim of a neutrino velocity different from the speed of the light, made in September 2011 by the Opera experiment, suggested the study of the time delays between TeV underground muons in the Gran Sasso laboratory using ...

    • ANALYSIS OF THE PROPERTIES OF AW2099 ALUMINIUM-LITHIUM ALLOY WELDED BY LASER BEAM WITH AW5087 ALUMINIUM-MAGNESIUM FILLER MATERIAL 

      Autor: Sahul , Miroslav; Sahul , Martin; Pašák , Matej; Marônek , Milan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      EN AW2099 aluminium lithium alloy, 2.0mm in thickness, was used as an experimental material. EN AW2099 belongs to the 3rd generation of aluminium lithium alloys. The third generation was developed to improve the disadvantages ...

    • ANALYSIS OF TRANSONIC FLOW PAST CUSPED AIRFOILS 

      Autor: Stodůlka , Jiří; Šafařík , Pavel
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
      Transonic flow past two cusped airfoils is numerically solved and achieved results are analyzed by means of flow behavior and oblique shocks formation.Regions around sharp trailing edges are studied in detail and parameters ...

    • ANALYSIS OF WELD JOINT DEFORMATIONS BY OPTICAL 3D SCANNING 

      Autor: Urminsky , Jan; Marônek , Milan; Jáňa , Miroslav; Morovič , Ladislav
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
      This paper presents an analysis of weld joint deformation using optical 3D scanning. The weld joints of bimetals were made by explosion welding (EXW). GOM ATOS II TripleScan SO MV320 equipment with measuring volume 320 × ...

    • Analytic and Algebraic Methods in Physics 

      Autor: Khrabustovskii , Andrii; Znojil , Miloslav
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)

    • 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 ...

    • ANALYTICAL SOLUTION OF (2+1) DIMENSIONAL DIRAC EQUATION IN TIME-DEPENDENT NONCOMMUTATIVE PHASE-SPACE 

      Autor: Haouam , Ilyas
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
      In this article, we studied the system of a (2+1) dimensional Dirac equation in a time-dependent noncommutative phase-space. More specifically, we investigated the analytical solution of the corresponding system by the ...

    • Angular Distribution of GRBs 

      Autor: Balázs , L. G.; Mészáros , A.; Horváth , I.; Bagoly , Z.; Veres , P.; Tusnády , G.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      We studied the complete randomness of the angular distribution of BATSE gamma-ray bursts (GRBs). Based on their durations and peak fluxes, we divided the BATSE sample into 5 subsamples (short1, short2, intermediate, long1, ...

    • ANNEALING OF POLYCRYSTALLINE THIN FILM SILICON SOLAR CELLS IN WATER VAPOUR AT SUB-ATMOSPHERIC PRESSURES 

      Autor: Pikna , Peter; Píč , Vlastimil; Benda , Vítězslav; Fejfar , Antonín
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      Thin film polycrystalline silicon (poly-Si) solar cells were annealed in water vapour at pressures below atmospheric pressure. PN junction of the sample was contacted by measuring probes directly in the pressure chamber ...

    • Antipalindromic numbers 

      Autor: Dvořáková, Ľubomíra; Kruml, Stanislav; Ryzák, David
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
      Everybody has certainly heard about palindromes: words that stay the same when read backwards. For instance, kayak, radar, or rotor. Mathematicians are interested in palindromic numbers: positive integers whose expansion ...

    • APPLICABILITY OF CARBON FIBRES IN REFRACTORY CEMENT COMPOSITES 

      Autor: Holčapek , Ondřej; Reiterman , Pavel; Konvalinka , Petr
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      The main objective of this article is to present the influence of high temperatures on mechanical properties of advanced refractory cement composite reinforced with carbon fibres. The presented material is suitable for ...

    • Applicability of Secondary Denitrification Measures on a Fluidized Bed Boiler 

      Autor: Jeníková, Jitka; Michaliková, Kristýna; Hrdlička, František; Hrdlička, Jan; Pilař, Lukáš; Vodička, Matěj; Skopec, Pavel
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      This article compares performance of selective catalytic reduction (SCR) and selective non-catalytic reduction (SNCR) applied on the same pilot unit, a 500 kW fluidized bed boiler burning Czech lignite. Correlation of the ...

    • APPLICABILITY VERIFICATION OF AUTOFORM SOFTWARE FOR FEM SIMULATION OF MECHANICAL FIXATION OF HEMMED JOINTS 

      Autor: Chrášťanský , Lukáš; Šanovec , Jan; Martawirya , Yatna Yuwana; Valeš , Michal
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      This paper deals with the problematics of fixation of hemmed joints, especially with one specific mechanical method how to ensure a dimensional stability of a hemmed joint of car-body parts, such as doors, bonnet and trunk ...

    • Application of additional insulation to ETICS on surfaces with biocorrosion 

      Autor: Antošová, Naďa; Šťastný, Patrik; Petro, Marek; Krištofič, Štefan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
      The paper presents partial outputs from an experiment that demonstrated the impact of applying an additional insulation on an existing contact insulation system with a green-algae surface. The aim was mainly to detect the ...

    • APPLICATION OF ADVANCED COMBUSTION MODELS IN INTERNAL COMBUSTION ENGINES BASED ON 3-D CFD LES APPROACH 

      Autor: Vítek, Oldřich; Macek, Jan; Doleček, Vít; Syrovátka, Zbyněk; Pavlovic, Zoran; Priesching, Peter; Tap, Ferry
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
      This paper deals with the application of advanced simulation techniques for combustion modeling in the case of an internal combustion engine. The main focus is put on models with a high predictive ability hence 3-D CFD was ...

    • Application of an artificial intelligence segmentation for deep hyperthermia treatment planning in the pelvic region 

      Autor: Drizdal, Tomas; Novak, Marek
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      During a microwave hyperthermia oncology treatment, the target region temperature is elevated to the temperatures of 40–44 °C, which improves the therapeutic effect of a standard radiotherapy and/or chemotherapy treatments. ...

    • APPLICATION OF CORROSION PLATES IN DRINKING WATER 

      Autor: Skalický , Michal
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      Drinking water has always been, is and will be a strategic raw material. Stopping corrosion or at least minimisation of its impact while keeping quality drinking water supplies is a big challenge for the future. That is ...