Prohlížení Ústřední knihovna ČVUT dle názvu

Zobrazují se záznamy 400-419 z 2019

    • 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 ...

    • Control Algorithms for Large-scale Single-axis 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 ...

    • CONTROL OF THE DOUBLE INVERTED PENDULUM ON A CART USING THE NATURAL MOTION 

      Autor: Neusser , Zdenek; Valášek , Michael
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      This paper deals with controlling the swing-up motion of the double pendulum on a cart using a novel control. The system control is based on finding a feasible trajectory connecting the equilibrium positions from which the ...

    • Conversion of units of length from the Czech state standard to the geodetic baseline Javoriv 

      Autor: Lechner, Jiří; Kosarev, Nikolai Sergeevich; Trevoho, Igor Sergeevich
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      Modern society cannot do without high quality geospatial data. This need constantly strengthens with the growth of the information society and the emerging cyber society. Validity and quality of geospatial data is strongly ...

    • Cooperation of active steering control of wheelsets with subsystems of an autonomous urban rail vehicle 

      Autor: Vrba, Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      The paper presents the motivations for the application of actively controlled elements in the running gear of a rail vehicle and the challenges that need to be addressed before deploying vehicles with actively controlled ...

    • Corn starch doped with sodium iodate as solid polymer electrolytes for energy storage applications 

      Autor: Awang, Fatin Farhana; Hassan, Mohd Faiz; Kamarudin, Khadijah Hilmun
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
      The concern about environmental problems has inspired a of energy storage devices from natural sources. In this study, solid polymer electrolyte (SPE) films made from corn starch doped with different compositions of sodium ...

    • CORPORATE SOCIAL RESPONSIBILITY: THE MAIN FORMS AND THE ROLE IN SOCIAL-AND-ECONOMIC POLICY 

      Autor: Tumanyan, Y. R.
      (Willenberg Foundation - CTU, 2014)
      The paper analyzes the main forms and the role of corporate social responsibility in social-and-economic policy. The author studied various forms of conducting social-andeconomic policy and was able to prove that under ...

    • CORRELATION ANALYSIS OF VEHICLE FRONTAL IMPACT PARAMETERS 

      Autor: Mík, Josef; Kadlecová, Jana
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
      The article considers a possible improvement of road vehicle safety by using eCall – a system which initiates an emergency call in case of traffic accident. A possible way of better description of a frontal impact accident ...

    • Correlation of porosity and properties of recycled fine aggregate concrete with fly ash 

      Autor: Lin, Hangwei; Takasu, Koji; Koyamada, Hidehiro; Suyama, Hiroki
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      In this paper, we presented the experimental discussion of samples of recycled aggregate concrete with replacement of natural fine aggregate by recycled fine aggregate. Three mix kinds were produced and, for each of these ...

    • CORRELATION RELATIONSHIPS FOR THE HYPOPLASTIC MODEL FOR FINE GRAINED SOILS 

      Autor: Kadlíček, Tomáš; Janda, Tomáš; Šejnoha, Michal
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
      The paper is concerned with our ongoing research effort devoted to the development of reliable computational tools for the calibration of advanced constitutive models of soils. At present, such software is available for ...

    • Cosmological Evolution of the Central Engine in High-Luminosity, High-Accretion Rate AGN 

      Autor: Guainazzi, Matteo
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      In this paper I discuss the status of observational studies aiming at probing the cosmological evolution of the central engine in high-luminosity, high-accretion rate Active Galactic Nuclei (AGN). X-ray spectroscopic ...

    • Cost-optimization based target reliability for fire design of insulated steel columns 

      Autor: Chaudhary, Ranjit Kumar; Gernay, Thomas; Van Coile, Ruben
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      Adequacy of a structural fire design can in theory be demonstrated through a probabilistic risk assessment (PRA) where the compliance with tolerability limits and the ALARP requirement are explicitly ascertained. However, ...

    • COULOMB SCATTERING IN NON-COMMUTATIVE QUANTUM MECHANICS 

      Autor: Gáliková , Veronika; Prešnajder , Peter
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Recently we formulated the Coulomb problem in a rotationally invariant NC configuration space specified by NC coordinates xi, i = 1, 2, 3, satisfying commutation relations [xi, xj ] = 2iλεijkxk (λ being our NC parameter). ...

    • COUNTER-ROTATING DUAL ROTOR WIND TURBINE LAYOUT OPTIMISATION 

      Autor: Hetyei, Csaba; Szlivka, Ferenc
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2021)
      General energy demand is continuously increasing, thus the energy generating assets need to be optimised for higher efficiency. Wind turbines are no exception. Their maximum efficiency can be determined on a theoretical ...

    • COUPLED ELECTROMAGNETIC-THERMAL SIMULATION OF A POWER TRANSFORMER BY 3D FEM 

      Autor: Henriques , Henrique Oliveira; Vizeu , Carlos Eduardo; Souza , Paulo Cesar; Costa , Mauricio Caldora; Sotelo , Guilherme Gonçalves; Sousa , Jonaylton Moura; Fortes , Marcio Zamboti; Ferreira , Vitor Hugo
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
      Power transformers are the most common equipment in an electric power system, which has been manufactured in the last decade. However, overheating can damage them, considerably reducing their operation lives, which may ...

    • COUPLED SIMULATION FOR FIRE-EXPOSED STRUCTURES USING CFD AND THERMO-MECHANICAL MODELS 

      Autor: Šulc, Stanislav; Šmilauer, Vít; Wald, František
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
      Fire resistance of buildings is based on fire tests in furnaces with gas burners. However, the tests are very expensive and time consuming. This article presents a coupled simulation of an element loaded by a force and a ...

    • COUPLED SIMULATION OF GAS COOLED FAST REACTOR FUEL ASSEMBLY WITH NESTLE CODE SYSTEM 

      Autor: Osusky, Filip; Cerba, Stefan; Luley, Jakub; Vrban, Branislav; Hascik, Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      The paper is focused on coupled calculation of the Gas Cooled Fast Reactor. The proper modelling of coupled neutronics and thermal-hydraulics is the corner stone for future safety assessment of the control and emergency ...

    • COVARIANT INTEGRAL QUANTIZATIONS AND THEIR APPLICATIONS TO QUANTUM COSMOLOGY 

      Autor: Gazeau , Jean-Pierre
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
      We present a general formalism for giving a measure space paired with a separable Hilbert space a quantum version based on a normalized positive operator-valued measure. The latter are built from families of density operators ...

    • CP VIOLATIONS (AND MORE) AFTER THE FIRST TWO YEARS OF LHCB 

      Autor: Auriemma, Giulio
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The most interesting cosmological open problems, baryon asymmetry, dark matter, inflation and dark energy, are not explained by the standard model of particle physics (SM). The finalgoal of the Large Hadron Collider an ...

    • Creating a Multi-axis Machining Postprocessor 

      Autor: Vavruška , Petr
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This paper focuses on the postprocessor creation process. When using standard commercially available postprocessors it is often very difficult to modify its internal source code, and it is a very complex process, in many ...