Poslední příspěvky

  • The Intriguing Nature of the Cataclysmic Variable SS Cygni 

    Autor: Giovannelli , F.; Sabau-Graziati , L.
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
    The classification of SS Cyg as a dwarf nova (DN), a subclass of the non–magnetic (NM) cataclysmic variable (CV) has been considered by most of the community as well established because of a paper appeared in Nature (Bath ...
  • A Study of the Properties of Electrical Insulation Oils and of the Components of Natural Oils 

    Autor: Spohner , Milan
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
    This paper presents a study of the electrical and non-electrical properties of insulating oils. For the correct choice of an electrical insulation oil, it is necessary to know its density, dynamic viscosity, dielectric ...
  • Diamond Films for Implantable Electrodes 

    Autor: Henychová , Petra; Hiřmanová , Klára; Vraný , Martin
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
    Diamond is a promising material for implantable electrodes due to its unique properties. The aim of this work is to investigate the growth of boron-doped nanocrystalline diamond (B-NCD) films by plasma-enhanced microwave ...
  • The Electrification of Tramways in Ostrava in 1900–1901 

    Autor: Závodná , Michaela
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
    This paper focuses on the electrification of tramways in Ostrava in 1900-1901. As the administrative, economic and cultural centre of an evolving industrial agglomeration, Ostrava had specific transportation requirements. ...
  • Evaluation of Bioelectrical Impedance Spectroscopy for the Assessment of Extracellular Body Water 

    Autor: Weyer , Sören; Röthlingshöfer , Lisa; Walter , Marian; Leonhardt , Steffen
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
    This study evaluates bioelectrical impedance spectroscopy (BIS) measurements to detect body fluid status. The multifrequency impedance measurements were performed in five female pigs. Animals were connected to an extracorporeal ...
  • Geometrical Modeling of Concrete Microstructure for the Assessment of ITZ Percolation 

    Autor: Rypl , Daniel; Bým , Tomáš
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
    Percolation is considered to be a critical factor affecting the transport properties of multiphase materials. In the case of concrete, the transport properties are strongly dependent on the interfacial transition zone ...
  • Model of Customer Buying Behavior in the CZ Mobile Telecommunication Market 

    Autor: Grünwald , Ondrej
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
    The Czech mobile telecommunication market constitutes an oligopoly of three operators, who have built a privileged position and effectively crush any competition. The entry of a new operator has been considered by the ...
  • A Taskdriven Grammar Refactoring Algorithm 

    Autor: Halupka , Ivan; Kollár , Ján; Pietriková , Emília
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
    This paper presents our proposal and the implementation of an algorithm for automated refactoring of context-free grammars. Rather than operating under some domain-specific task, in our approach refactoring is perfomed on ...
  • A Numerical Study of Wind Flow Over a Coal Storage Shelter 

    Autor: Bodnár , Tomáš; Beneš , Ludek; Pirkl , Luboš; Gulíková , Eva
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
    This paper presents some of the main numerical results obtained while simulating the wind flow over a shelter covering a coal storage. The aim of this numerical study was to evaluate the change in flow patterns caused by ...
  • Transonic Flow of Wet Steam — Numerical Simulation 

    Autor: Halama , Jan
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
    The paper presents a numerical simulation of the transonic flow of steam with a non-equilibrium phase change. The flow of steam is approximated by a mixture model complemented by transport equations for moments. Proper ...
  • The Asymptotic Properties of Turbulent Solutions to the NavierStokes Equations 

    Autor: Skalák , Zdenek
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
    In this paper we study the large time behavior of solutions to the Navier-Stokes equations. We present a brief survey of results concerning energy decay, and discuss a related phenomenon of the large time energy concentration ...
  • Hierarchical Modeling of Mastic Asphalt in Layered Road Structures Based on the MoriTanaka Method 

    Autor: Valenta , Richard; Šejnoha , Michal
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
    We present an application of the Mori-Tanaka micromechanical model for a description of the highly nonlinear behavior of asphalt mixtures. This method is expected to replace an expensive finite element-based fully-coupled ...
  • ESSO — Electrification of the Central Labe Districts between 1916 and 1950 

    Autor: Holovský , Jan
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
    Elektrárenský svaz stredolabských okresu, LLC (in English “The Power Plant Union of the Central Labe (Elbe)” districts, which will be referred to here as “ESSO”), came into existence in 1916 in response to growing interest ...
  • A MicromechanicsBased Model for Stiffness and Strength Estimation of Cocciopesto Mortars 

    Autor: Nežerka , Václav; Zeman , Jan
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
    The purpose of this paper is to propose an inexpensive micromechanics-based scheme for stiffness homogenization and strength estimation of mortars containing crushed bricks, known as cocciopesto. The model utilizes the ...
  • A Comparison of Power Quality Controllers 

    Autor: Černek , Petr; Brejcha , Michal; Hájek , Jan; Pígl , Jan
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
    This paper focuses on certain types of FACTS (Flexibile AC Transmission System) controllers, which can be used for improving the power quality at the point of connection with the power network. It focuses on types of ...
  • Simulation of a Matrix Converter Fed Drive With Sliding Mode Control 

    Autor: Bauer , Jan
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
    Induction machines are among the most widely used electrical-to-mechanical converters in electric drives. Their advantageous robustness and simplicity goes hand-in-hand with complicated control. A converter with a suitable ...
  • Development of an Ultralight with a Ducted Fan 

    Autor: Brabec , Jiří; Helmich , Martin
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
    This paper introduces the UL-39 project, an ultralight aircraft with a ducted fan, and some of the problems that have arisen in the course of its development. Several problems with the design of a non-traditional aircraft ...
  • Flexible MultiElectrode Array for Medical Applications 

    Autor: Winkin , Nadine; Mokwa , Wilfried
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
    A flexible multi-electrode array (MEA) with an embedded silicon chip for electrical stimulation of neurons or for recording action potentials has been manufactured and characterized. Possible improvements for medical ...
  • A Network Simulation Tool for Task Scheduling 

    Autor: Votava , Ondřej
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
    Distributed computing may be looked at from many points of view. Task scheduling is the viewpoint, where a distributed application can be described as a Directed Acyclic Graph and every node of the graph is executed ...
  • Control Algorithms for Largescale Singleaxis Photovoltaic Trackers 

    Autor: Schneider , Dorian
    (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
    The electrical yield of large-scale photovoltaic power plants can be greatly improved by employing solar trackers. While fixed-tilt superstructures are stationary and immobile, trackers move the PV-module plane in order ...

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