Zobrazují se záznamy 447-466 z 880

    • KINEMATIC SYNTHESIS OF CENTRAL-LEVER STEERING MECHANISM FOR FOUR WHEEL VEHICLES 

      Autor: Pramanik , Santiranjan; Thipse , Sukrut Shrikant
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
      A central lever steering mechanism has been synthesized to obtain five precision points for a four-wheel vehicle using Hooke and Jeeves optimization method. This compound mechanism has been studied as two identical crossed ...
    • Lab-scale Technology for Biogas Production from Lignocellulose Wastes 

      Autor: Krátký , Lukáš; Jirout , Tomáš; Nalezenec , Jiří
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      Currently-operating biogas plants are based on the treatment of lignocellulose biomass, which is included in materials such as agriculture and forestry wastes, municipal solid wastes, waste paper, wood and herbaceous energy ...
    • LABORATORY EQUIPMENT FOR AUTOTHERMAL REFORMING OF ORGANIC MATTER IN SUPERCRITICAL WATER 

      Autor: Gajdoš , Matúš
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      The ability of water to dissolve organic substances is very limited. However, its ability to dissolve them changes if pressure and temperature values reach the so-called critical point (p = 22.06MPa, T = 373.95 °C). Fluid ...
    • LABORATORY TESTING OF THE LEICA AT401 LASER TRACKER 

      Autor: Dvořáček , Filip
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
      This paper describes laboratory tests on a Leica AT401laser tracker. As the newer Leica AT402 model also uses the same firmware package, most of the results should also be valid for this device. First, we present the ...
    • LAMBERT FUNCTION METHODs TO STUDY LASER DYNAMICS WITH TIME-DELAYED FEEDBACK 

      Autor: Joglekar N, Yogesh; Vemuri , Gautam; Wilkey , Andrew
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
      Time-delayed differential equations arise frequently in the study of nonlinear dynamics of lasers with optical feedback and because the analytical solution of such equations can be intractable, one resorts to numerical ...
    • LAPLACE EQUATIONS, CONFORMAL SUPERINTEGRABILITY AND BÔCHER CONTRACTIONS 

      Autor: Kalnins G., Ernest; Miller, Jr , Willard; Subag , Eyal
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
      Quantum superintegrable systems are solvable eigenvalue problems. Their solvability is due to symmetry, but the symmetry is often ``hidden''.The symmetry generators of 2nd order superintegrable systems in 2 dimensions close ...
    • LAPLACE-RUNGE-LENZ VECTOR IN QUANTUM MECHANICS IN NONCOMMUTATIVE SPACE 

      Autor: Prešnajder , Peter; Gáliková , Veronika; Kováčik , Samuel
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      The object under scrutiny is the dynamical symmetry connected with conservation of the Laplace-Runge-Lenz vector (LRL) in the hydrogen atom problem solved by means of noncommutative quantum mechanics (NCQM). The considered ...
    • LARGE AREA HODOSCOPES FOR MUON DIAGNOSTICS OF HELIOSPHERE AND EARTH’S MAGNETOSPHERE 

      Autor: Yashin, I. I.; Ampilogov, N. V.; Astapov, I.I.; Barbashina, N.S.; Borog, V.V.; Dmitrieva, A.N.; Kokoulin, R.P.; Kompaniets, K.G.; Mannocchi, G.; Mikhailenko, A.S.; Petrukhin, A.A.; Saavedra, O.; Shutenko, V.V.; Trinchero, G.; Yakovleva, E.I.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Muon diagnostics is a technique for remote monitoring of active processes in the heliosphere and the magnetosphere of the Earth based on the analysis of angular variations of muon flux simultaneously detected from all ...
    • Laser Cutting of Materials of Various Thicknesses 

      Autor: Grepl , Martin; Pagáč , Marek; Petrů , Jana
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      Thise paper deals with the application of laser technology and optimizing the parameters for cutting nickel alloy. The theoretical part of the paper describes various types of lasers, their principles and usage. The ...
    • LASER ULTRASONIC MEASUREMENT OF MECHANICAL DECAY IN LIMESTONE CAUSED BY FREEZE-THAW CYCLES 

      Autor: Kravcov , Alexander; Franek , Ondřej; Morozov , Nikolaj; Kucewicz , Michał; Tomaszewski , Michał; Svoboda , Pavel; Baranowski , Paweł
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
      In this article, an innovative new method of non-destructive testing for estimating the sensitivity of limestone is presented. An advantage of the laser ultrasonic structuroscopy method is the time and the quality, due to ...
    • LEAD-TIME, INVENTORY, AND SAFETY STOCK CALCULATION IN JOB-SHOP MANUFACTURING 

      Autor: Sellitto Afonso, Miguel
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
      The purpose of this article is to present a method for calculating the lead-time, the inventory, and the safety stock or buffer in job shop manufacturing, which are essentially stochastic variables. The research method is ...
    • LIE ALGEBRA REPRESENTATIONS AND RIGGED HILBERT SPACES: THE SO(2) CASE 

      Autor: Celeghini , Enrico; Gadella , Manuel; del Olmo A, Mariano
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
      It is well known that related with the irreducible representations of the Lie group SO(2) we find a discrete basis as well a continuous one. In this paper we revisited this situation under the light of  Rigged Hilbert ...
    • LIE GROUPS AND NUMERICAL SOLUTIONS OF DIFFERENTIAL EQUATIONS: INVARIANT DISCRETIZATION VERSUS DIFFERENTIAL APPROXIMATION 

      Autor: Levi , Decio; Winternitz , Pavel
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      We briefly review two different methods of applying Lie group theory in the numerical solution of ordinary differential equations. On specific examples we show how the symmetry preserving discretization provides difference ...
    • Lifetime Assessment of a Steam Pipeline 

      Autor: Janovec , Jiří; Poláchová , Daniela; Junek , Michal
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      The aim of this paper is to design a method for assessing the life of steam pipes for Czech power plants. The most widely-used material in Czech power plants is steel 15 128. Our findings may also be applied for international ...
    • LIMIT ON UHE NEUTRINO FLUXES FROM THE PIERRE AUGER OBSERVATORY 

      Autor: Maldera, S.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The surface detector of the Pierre Auger Observatory is sensitive to Ultra High Energy (UHE) neutrinos. Neutrinos of all flavors can interact in the atmosphere producing inclined showers near the ground. Moreover, ultra ...
    • Linearisation of a second-order nonlinear ordinary differential equation 

      Autor: Maharaj, Adhir; Leach, Peter G. L.; Govender, Megan; Day, David P.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
      We analyse nonlinear second-order differential equations in terms of algebraic properties by reducing a nonlinear partial differential equation to a nonlinear second-order ordinary differential equation via the point ...
    • Linearised coherent states for non-rational SUSY extensions of the harmonic oscillator 

      Autor: Contreras-Astorga, Alonso; Fernández C., David J.; Muro-Cabral, César
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      In this work, we derive two equivalent non-rational extensions of the quantum harmonic oscillator using two different supersymmetric transformations. For these extensions, we built ladder operators as the product of the ...
    • Load carrying capacity of masonry arch railway bridges at the serviceability limit state 

      Autor: Vokál, Marek; Drahorád, Michal
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      This article focuses on masonry arch railway bridges. The main topic is the algorithm, which was developed for the purpose of a non-linear arch bridge analysis. The sensitivity analysis of the input parameters of the ...
    • Local Magnetohydrodynamic Characteristics of the Plasma Stream generated by MPC 

      Autor: Cherednychenko , Tatyana N.; Garkusha , Igor E.; Chebotarev , Vladimir V.; Solyakov , Dmytro G.; Petrov , Yuriy V.; Ladygina , Maryna S.; Eliseev , Dmytro V.; Chuvilo , Alexander A.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      This paper investigates the spatial distributions of electrical current which flows inside the plasma stream generated by a magnetoplasma compressor (MPC). Two different modes of MPC operation with different gas supply ...
    • LOCAL VELOCITY PROFILES MEASURED BY PIV IN AN VESSEL AGITATED BY RUSHTON TURBINE 

      Autor: Šulc , Radek; Pešava , Vít; Ditl , Pavel
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      The hydrodynamics and flow field were measured in an agitated vessel using 2-D Time Resolved Particle Image Velocimetry (2-D TR PIV). The experiments were carried out in a fully baffled cylindrical flat bottom vessel 300 ...