Prohlížení Acta Polytechnica dle názvu

Zobrazují se záznamy 124-143 z 880

    • Atmospheric Argon Free burning Arcs with a Simplified Unified Model Using CFD-Arc Modeling 

      Autor: Lee , Won-Ho; Lee , Jong-Chul
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Free burning arcs, where the work piece acts as an anode, are frequently used for a number of applications. Our investigation is exclusively concerned with a simplified unified model of arcs and their electrodes under ...

    • AUTOMATIC BIOMASS BOILER WITH AN EXTERNAL THERMOELECTRIC GENERATOR 

      Autor: Brázdil , Marian; Šnajdárek , Ladislav; Kracík , Petr; Pospíšil , Jirí
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      This paper presents the design and test results of an external thermoelectric generator that utilizes the waste heat from a small-scale domestic biomass boiler with nominal rated heat output of 25 kW. The low-temperature ...

    • AUTOMATIC CLASSIFICATION OF POINT CLOUDS FOR HIGHWAY DOCUMENTATION 

      Autor: Hůlková , Martina; Pavelka , Karel; Matoušková , Eva
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      Mobile laser scanning systems confirmed the capability for detailed roadway documentation. Hand in hand with enormous datasets acquired by these systems is the increase in the demands on the fast and effective processing ...

    • AUTOMATIC EEG CLASSIFICATION USING DENSITY BASED ALGORITHMS DBSCAN AND DENCLUE 

      Autor: Piorecký , Marek; Štrobl , Jan; Krajča , Vladimír
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      Electroencephalograph (EEG) is a commonly used method in neurological practice. Automatic classifiers (algorithms) highlight signal sections with interesting activity and assist an expert with record scoring. Algorithm ...

    • AUTOMATIC RECONSTRUCTION OF ROOF MODELS FROM BUILDING OUTLINES AND AERIAL IMAGE DATA 

      Autor: Hron , Vojtěch; Halounová , Lena
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      The knowledge of roof shapes is essential for the creation of 3D building models. Many experts and researchers use 3D building models for specialized tasks, such as creating noise maps, estimating the solar potential of ...

    • AUTOMATIC WINDING GENERATION USING MATRIX REPRESENTATION - ANFRACTUS TOOL 1.0 

      Autor: Ouamara , Daoud; Dubas , Frédéric; Benallal , Mohamed Nadjib; Randi , Sid Ali; Espanet , Christophe
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      This paper describes an original approach dealing with AC/DC winding design in electrical machines. A research software called “ANFRACTUS Tool 1.0”, allowing automatic generation of all windings in multi-phases electrical ...

    • AUTOMORPHISMS OF ALGEBRAS AND ORTHOGONAL POLYNOMIALS 

      Autor: Gromada , Daniel; Pošta , Severin
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      Suitable automorphisms together with complete classification of representations of some algebras can be used to generate some sets of orthogonal polynomials “at no cost”. This is also the case of nonstandard Klimyk-Gavrilik ...

    • 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 ...

    • BATHYMETRY FROM WORLDVIEW-3 SATELLITE DATA USING RADIOMETRIC BAND RATIO 

      Autor: Parente , Claudio; Pepe , Massimiliano
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      The use of optical satellite sensors allows to obtain bathymetry data on large area ina short time and in a cheap way. In addition, in particular places where it is difficult to carry out the survey by classic methods, the ...

    • Bearing capacity of damaged reinforced concrete beams strengthened with metal casing 

      Autor: Karpiuk, Irina; Danilenko , Denis; Karpiuk, Vasyl; Danilenko , Anna; Lyashenko, Tatiana
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
      Experimental data on the bearing capacity of damaged reinforced concrete beams with the dimensions of 2000×200×100 mm, reinforced with prestressed metal casings, are presented. Damaging in the form of through normal and ...

    • BETA CANTOR SERIES EXPANSION AND ADMISSIBLE SEQUENCES 

      Autor: Caalim , Jonathan; Demegillo , Shiela
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
      We introduce a numeration system, called the beta Cantor series expansion, that generalizes the classical positive and negative beta expansions by allowing non-integer bases in the Q-Cantor series expansion. In particular, ...

    • BEYOND THE STANDARD MODEL OF THE DISC–LINE SPECTRAL PROFILES FROM BLACK HOLE ACCRETION DISCS 

      Autor: Sochora , Vjaceslav; Karas , Vladimír; Svoboda , Jirí; Dovciak , Michal
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      The strong gravitational field of a black hole has distinct effects on the observed profile of a spectral line from an accretion disc near a black hole. The observed profile of the spectral line is broadened and skewed by ...

    • Biomass Gasification — Primary Methods for Eliminating Tar 

      Autor: Lisý , Martin; Baláš , Marek; Moskalík , Jiří; Štelcl , Otakar
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This present paper deals with primary methods for reducing tar in biomass gasification, namely by feeding a natural catalyst into a fluidized bed. This method is verified using an experimental pilot plant.

    • 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 ...

    • BOOTES Observation of GRB 080603B 

      Autor: Jelínek , M.; Gorosabel , J.; Castro-Tirado , A. J.; Postigo , A. de Ugarte; Guziy , S.; Cunniffe , R.; Kubánek , P.; Prouza , M.; Vítek , S.; Hudec , R.; Reglero , V.; Sabau-Graziati , L.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      We report on multicolor photometry of long GRB080603B afterglow from BOOTES-1B and BOOTES-2. The optical afterglow has already been reported to present a break in the optical lightcurve at 0.12 ± 0.2 days after the trigger. ...

    • CALCULATION OF STRESS AND DEFORMATION IN FUEL ROD CLADDING DURING PELLET-CLADDING 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 ...

    • Calculation of the Inductance of Plasma Column at PF-1000 Device with Assumed Current Distribution 

      Autor: Kortanek , Jiri; Kubes , Pavel
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Processed data is taken from the D-D fusion reaction experiments on PF-1000 at IFPILM Warsaw, operating with 2 MA, 1011 neutron yield, using interferometry, temporal resolved neutron diagnostics, magnetic probe diagnostics ...

    • CALCULATIONS OF ION TRAJECTORIES AT MAGNETOPLASMA SEPARATION AND EXPERIMENTS WITH POLYATOMIC GASES 

      Autor: Yuferov , Vladimir; Shariy , Sergey; Tkachova , Tetiana; Katrechko , Vyacheslav; Svichkar , Alexander; Ilichova , Vira; Shvets , Mykhailo; Mufel , Evgen
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
      Calculated trajectories of ions with different masses, indicating the possibility of a mixture separation, are obtained. Comparative experiments for plasma of monatomic and polyatomic gases (Ar, N2, CO2), upon combination ...

    • CAN ONE REALLY STUDY CHAOS ANALYTICALLY? 

      Autor: Lee Howard, M.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      One generally thinks that chaos can be studied only numerically by aid of the computer. It is however suggested by the theorem of Sharkovskii and Li and Yorke that in Id continuous maps analytical studies are possible. How ...

    • Case study: Dosimetric comparison of VMAT, IMRT and 3DCRT techniques for left-sided breast cancer treated in deep inspiration breath-hold 

      Autor: Hanušová, Tereza
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      The aim of this case study was to compare 3D conformal radiotherapy (3DCRT) plans for patients treated for left-sided breast cancer (whole breast without positive lymph nodes in deep inspiration breath-hold (DIBH)) to ...