Prohlížení Acta Polytechnica. 2013, vol. 53 dle názvu

Zobrazují se záznamy 59-78 z 169

    • ICECUBE OBSERVATORY: NEUTRINOS AND THE ORIGIN OF COSMIC RAYS 

      Autor: Desiati, Paolo
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The completed IceCube Observatory, the first km3 neutrino telescope, is already providing the most stringent limits on the flux of high energy cosmic neutrinos from point-like and diffuse galactic and extra-galactic sources. ...

    • Ignition Features of Plasma-Beam Discharge in Gas-Discharge Electron Gun Operation 

      Autor: Tutyk , Valery A.; Ovcharuk , Anatoliy N.; Gasik , Michail I.; Maslenikov , Dmitriy V.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The current paper presents the results of experimental researches to determine the mode features of plasma-beam discharge (PBD) generation by an electron beam injected by a low-vacuum gasdischarge electron gun (LGEG) with ...

    • In memory of Alois Apfelbeck: An Interconnection between Cayley-Eisenstein-Pólya and Landau Probability Distributions 

      Autor: Vojta , Vladimír
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The interconnection between the Cayley-Eisenstein-Pólya distribution and the Landau distribution is studied, and possibly new transform pairs for the Laplace and Mellin transform and integral expressions for the Lambert W ...

    • Inactivation of Candida albicans by Corona Discharge: The Increase of Inhibition Zones Area After Far Subsequent Exposition 

      Autor: Fantova , Vladyslava; Bujaček , Karol; Kříha , Vítězslav; Julák , Jaroslav
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The cold atmospheric pressure plasma generated by the negative corona discharge has inhibition effect on the microorganism growth. This effect is well-known and it can be demonstrated on the surface of cultivation agar ...

    • INFLUENCE OF THE RESULTS OF UHECR DETECTION ON THE LHC EXPERIMENTS 

      Autor: Petrukhin, Anatoly A.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The cosmic ray energy region 1015 ÷ 1017TeV corresponds to LHC energies 1 ÷ 14TeV in the center-of-mass system. The results obtained in cosmic rays (CR) in this energy interval can therefore be used for developing new ...

    • Inherited Properties of Effect Algebras Preserved by Isomorphisms 

      Autor: Paseka , Jan; Riečanová , Zdenka
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      We show that isomorphism of effect algebras preserves properties of effect algebras derived from effect algebraic sum ? of elements. These are partial order, order convergence, order topology, existence of states and other ...

    • Instability Growth Rate Dependence on Input Parameters During the Beam–Target Plasma Interaction 

      Autor: Horký , Miroslav
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The two-stream instability without magnetic field is described by the well-known Buneman dispersion relation. For more complicated situations we need to use the Generalized Buneman Dispersion Relation derived by Kulhánek, ...

    • Integration of the Watcher Telescope into the Sierra Stars Observatory Network – Lessons Learned for GLORIA 

      Autor: Topinka , Martin; Hanlon , Lorraine; Meehan , Seamus
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The UCD Watcher robotic telescope is planning to participate in the Sierra Stars Observatory Network (SSON), a US-based organisation that provides astronomical images upon request to subscribing users, who are typically ...

    • Intervals in Generalized Effect Algebras and their Sub-generalized Effect Algebras 

      Autor: Riečanová , Zdenka; Zajac , Michal
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      We consider subsets G of a generalized effect algebra E with 0∈G and such that every interval [0, q]G = [0, q]E ∩ G of G (q ∈ G , q ≠ 0) is a sub-effect algebra of the effect algebra [0, q]E. We give a condition on E and ...

    • INVESTIGATING THE Ep, i –Eiso CORRELATION 

      Autor: Amati, Lorenzo; Dichiara, Simone
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The correlation between the spectral peak photon energy, Ep, and the radiated energy or luminosity (i.e., the “Amati relation” and other correlations derived from it) is one of the central and most debated topics in GRB ...

    • ITINERARIES INDUCED BY EXCHANGE OF TWO INTERVALS 

      Autor: Masáková , Zuzana; Pelantová , Edita
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      We focus on the exchange T of two intervals with an irrational slope α. For a general subinterval I of the domain of T, the first return time to I takes three values. We describe the structure of the set of return itineraries ...

    • 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 ...

    • 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 ...

    • 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 ...

    • 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 ...

    • Long-Lived Plasma Process, Created by Impulse Discharge in Micro-Disperse Droplet Environment 

      Autor: Olszewski , Serge; Lisitchenko , Tamara; Yukhymenko , Vitalij
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The processes of organic compound (phenol and cation-active surfactants) destruction in water solutions, which stay under the influence of plasma treatment have been investigated in different dynamic plasma-liquid systems ...

    • Luiza: Analysis Framework for GLORIA 

      Autor: Żarnecki , Aleksander Filip; Piotrowski , Lech Wiktor; Mankiewicz , Lech; Małek , Sebastian
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The Luiza analysis framework for GLORIA is based on the Marlin package, which was originally developed for data analysis in the new High Energy Physics (HEP) project, International Linear Collider (ILC). The HEP experiments ...

    • Materials for Fusion Applications 

      Autor: Matějíček , Jiří
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      An overview of materials foreseen for use or already used in fusion devices is given. The operating conditions, material requirements and characteristics of candidate materials in several specific application segments are ...

    • MAXIMAL SUBSETS OF PAIRWISE SUMMABLE ELEMENTS IN GENERALIZED EFFECT ALGEBRAS 

      Autor: Riečanová , Zdenka; Janda , Jiří
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      We show that in any generalized effect algebra (G;⊕, 0) a maximal pairwise summable subset is a sub-generalized effect algebra of (G;⊕, 0), called a summability block. If G is lattice ordered, then every summability ...

    • MEASURING SUPERMASSIVE BLACK HOLE SPINS IN AGN 

      Autor: Brenneman, Laura
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Measuring the spins of supermassive black holes (SMBHs) in active galactic nuclei (AGN) can inform us about the relative role of gas accretion vs. mergers in recent epochs of the life of the host galaxy and its AGN. Recent ...