Procházení ČVUT - elektronické publikace dle data publikování

Zobrazují se záznamy 61-80 z 1904

    • Optimization of Fuzzy Logic Controller for Supervisory Power System Stabilizers 

      Autor: Al-Turki , Y. A.; Attia , A.-F.; Soliman , H. F.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This paper presents a powerful supervisory power system stabilizer (PSS) using an adaptive fuzzy logic controller driven by an adaptive fuzzy set (AFS). The system under study consists of two synchronous generators, each ...

    • Teaching Management at Technical Universities Business Reality in the Academic Environment 

      Autor: Baroch , V.; Duchoň , B.; Faifrová , V.; Říha , Z.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      Students of technical universities often do not understand why their studies should include learning management skills (in addition to the study of economics). However, not only the experience of graduates but also the ...

    • Modeling of Concrete Creep Based on Microprestress-solidification Theory 

      Autor: Havlásek , P.; Jirásek , M.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      Creep of concrete is strongly affected by the evolution of pore humidity and temperature, which in turn depend on the environmental conditions and on the size and shape of the concrete member. Current codes of practice ...

    • 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, ...

    • GRB Duration Distribution Considering the Position of the Fermi 

      Autor: Szécsi , D.; Bagoly , Z.; Horváth , I.; Balázs , L. G.; Veres , P.; Mészáros , A.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      The Fermi satellite has a particular motion during its flight which enables it to catch the gamma-ray bursts mostly well. The side-effect of this favourable feature is that the lightcurves of the GBM detectors are stressed ...

    • Plasma Flow and Temperature in a Gliding Reactor with Different Electrode Configurations 

      Autor: Sláma , J.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This paper deals with the plasma flow shape depending on the electrode form of a gliding discharge plasma-chemical reactor, and with the temperature distribution along the direction of the plasma flow in one specific ...

    • Production of Biodiesel from Vegetable Oil Using Microware Irradiation 

      Autor: Kapilan , N.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      The petroleum oil supply crisis, the increase in demand and the price eruption have led to a search for an alternative fuel of bio-origin in India. Among the alternative fuels, biodiesel is considered as a sustainable ...

    • An Optimal Procedure for Determining the Height Parameters of Fracture Surfaces 

      Autor: Ficker , T.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This paper presents an attempt to find an optimal procedure for determining the height parameters of fracture surfaces. This is a useful task that may significantly increase the reliability of topographic analyses of solids. ...

    • Prediction of Lower Extremity Movement by Cyclograms 

      Autor: Kutilek , P.; Viteckova , S.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      Human gait is nowadays undergoing extensive analysis. Predictions of leg movements can be used for orthosis and prosthesis programming, and also for rehabilitation. Our work focuses on predicting human gait with the use ...

    • Optimal Combustion Conditions for a Small-scale Biomass Boiler 

      Autor: Plaček , Viktor; Oswald , Cyril; Hrdlička , Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This paper reports on an attempt to achieve maximum efficiency and lowest possible emissions for a small-scale biomass boiler. This aim can be attained only by changing the control algorithm of the boiler, and in this way ...

    • Research and development of CO2 Capture and Storage Technologies in Fossil Fuel Power Plants 

      Autor: Pilař , Lukáš; Hrdlička , Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This paper presents the results of a research project on the suitability of post-combustion CCS technology in the Czech Republic. It describes the ammonia CO2 separation method and its advantages and disadvantages. The ...

    • The Effect of Temperature on the Gasification Process 

      Autor: Baláš , Marek; Lisý , Martin; Štelcl , Ota
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      Gasification is a technology that uses fuel to produce power and heat. This technology is also suitable for biomass conversion. Biomass is a renewable energy source that is being developed to diversify the energy mix, so ...

    • Experimental Investigation of Radial Gas Dispersion Coefficients in a Fluidized Bed 

      Autor: Štefanica , Jiří; Hrdlička , Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      In a fluidized bed boiler, the combustion efficiency, the NOX formation rate, flue gas desulphurization and fluidized bed heat transfer are all ruled by the gas distribution. In this investigation, the tracer gas method ...

    • Strontium As a Structure Modifier for Non-binary Al–Si Alloy 

      Autor: Stunová , Barbora Bryksí
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This paper presents a study of the influence on the structure of AlSi10Mg alloy when 400 ppm of strontium is added. Not only changes in the morphology of eutectic silicon, but in particular changes in the morphology of the ...

    • A Way to Use Waste Heat to Generate Thermoelectric Power 

      Autor: Brázdil , Marian; Pospíšil , Jiří
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      In recent years there has been rising interest in thermoelectric generation as a potential source of electric power using waste heat. This paper describes thermoelectric power generation from waste heat from biomass boilers, ...

    • A Flexible Adjustment and Control System for Hydraulic Machines 

      Autor: Banyai , Daniel; Marcu , Lucian
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      Due to the advantages of hydraulic systems with variable displacement, it was necessary to design a control system that can adjust the pressure, flow, power or a combination of these features, that can be easily integrated ...

    • Explosion Cladding of Lead on Steel 

      Autor: Turňa , Milan; Ondruška , Jozef; Turňová , Zuzana
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This work deals with explosion cladding of lead on steel. The welded materials and the Semtex S type explosive are characterised. The preparation of the welded materials and the proposed welding assembly are described. The ...

    • Contributions to the Study of Dynamic Absorbers, a Case Study 

      Autor: Balcau , Monica; Plesa , Angela; Opruta , Dan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      Dynamic absorbers are used to reduce torsional vibrations. This paper studies the effect of a dynamic absorber attached to a mechanical system formed of three reduced masses which are acted on by one, two or three order x ...

    • Simulation of Free Airfoil Vibrations in Incompressible Viscous Flow — Comparison of FEM and FVM 

      Autor: Sváček , Petr; Horáček , Jaromír; Honzátko , Radek; Kozel , Karel
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This paper deals with a numerical solution of the interaction of two-dimensional (2-D) incompressible viscous flow and a vibrating profile NACA 0012 with large amplitudes. The laminar flow is described by the Navier-Stokes ...

    • Synthesis of Mechanisms by Methods of Nonlinear Dynamics 

      Autor: Valášek , Michael; Šika , Zbynek
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This paper deals with a new method for parametric kinematic synthesis of mechanisms. The traditional synthesis procedure based on collocation, correction and optimization suffers from the local minima of objective functions, ...