• DAMA RESULTS: DARK MATTER IN THE GALACTIC HALO 

      Autor: Bernabei, R.; Belli, P.; Cappella, F.; Caracciolo, V.; Cerulli, R.; Dai, C. J.; d’Angelo, A.; Di Marco, A.; He, H. L.; Incicchitti, A.; Ma, X. H.; Montecchia, F.; Sheng, X. D.; Wang, R. G.; Ye, Z. P.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Experimental efforts and theoretical developmens support that most of the Universe is Dark and a large fraction of it should be made of relic particles; many possibilities are open on their nature and interaction types. ...
    • DARK ENERGY AND KEY PHYSICAL PARAMETERS OF CLUSTERS OF GALAXIES 

      Autor: Bisnovatyi-Kogan, Gennady S.; Chernin, Artur; Merafina, Marco
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      We study physics of clusters of galaxies embedded in the cosmic dark energy background. The equilibrium and stability of polytropic spheres with equation of state of the matter             P = Kpγ, γ = 1 + 1/n, in presence ...
    • DETECTION OF A CHANGE OF SLOPE IN THE SPECTRUM OF HEAVY MASS COSMIC RAYS PRIMARIES BY THE KASCADE-GRANDE EXPERIMENT 

      Autor: Chiavassa, A.; Apel, W. D.; Arteaga-Velázquez, J. C.; Bekk, K.; Bertaina, M.; Blümer, J.; Bozdog, H.; Brancus, I. M.; Cantoni, E.; Cossavella, F.; Daumiller, K.; de Souza, V.; Di Pierro, F.; Doll, P.; Engel, R.; Engler, J.; Finger, M.; Fuchs, B.; Fuhrmann, D.; Garino, F.; Gils, H. J.; Glasstetter, R.; Grupen, C.; Haungs, A.; Heck, D.; Hörandel, J. R.; Huber, D.; Huege, T.; Kampert, K.-H.; Kang, D.; Klages, H. O.; Link, K.; Łuczak, P.; Ludwig, M.; Mathes, H. J.; Mayer, H. J.; Melissas, M.; Milke, J.; Mitrica, B.; Morello, C.; Oehlschläger, J.; Ostapchenko, S.; Palmieri, N.; Petcu, M.; Pierog, T.; Rebel, H.; Roth, M.; Schieler, H.; Schoo, S.; Schröder, F. G.; Sima, O.; Toma, G.; Trinchero, G. C.; Ulrich, H.; Weindl, A.; Wochele, J.; Wommer, M.; Zabierowski, J.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      KASCADE-Grande is an extensive air shower experiment devoted to the study of cosmic rays in the 1016 ÷ 1018 eV energy range. The array is composed by different detectors allowing independent measurements of the number of ...
    • Developing Control and Monitoring Software for the Data Acquisition System of the COMPASS Experiment at CERN 

      Autor: Bodlák , Martin; Jarý , Vladimír; Konorov , Igor; Mann , Alexander; Nový , Josef; Paul , Severine; Virius , Miroslav
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      This paper focuses on the analysis, design and development of software for the new data acquisition system of the COMPASS experiment at CERN. In this system, the data flow is controlled by custom hardware; the software ...
    • Development of the PETAL Laser Facility and its Diagnostic Tools 

      Autor: Batani , Dimitri; Hulin , Sebastien; Ducret , Jean Eric; d’Humieres , Emmanuel; Tikhonchuk et al. , Vladimir
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The PETAL system (PETawatt Aquitaine Laser) is a high-energy short-pulse laser, currently in an advanced construction phase, to be combined with the French Mega-Joule Laser (LMJ). In a first operational phase (beginning ...
    • Diffuse Coplanar Surface Barrier Discharge in Nitrogen: Microdischarges Statistical Behavior 

      Autor: Cech , Jan; Hanusova , Jana; Stahel , Pavel; Slavicek , Pavel
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      We studied statistical behavior of microdischarges of diffuse coplanar surface barrier discharge (DCSBD) operated in nitrogen atmosphere at two input voltage regimes. We measured spectrally unresolved discharge patterns ...
    • DISC ATMOSPHERES AND WINDS IN X-RAY BINARIES 

      Autor: Díaz Trigo, Maria; Boirin, Laurence
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      We review the current status of studies of disc atmospheres and winds in low mass X-ray binaries. We discuss the possible wind launching mechanisms and compare the predictions of the models with the existent observations. ...
    • DO WE SEE THE ‘IRON PEAK’? 

      Autor: Erlykin, Anatoly D.; Wolfendale, Arnold W.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Recent measurements of the cosmic ray (CR) energy spectrum in the PeV region and above have confirmed the remarkable sharpness of the knee and revealed another structure at about 70PeV which we call the ‘Iron Peak’. The ...
    • EFFECT OF SLIP VELOCITY ON THE PERFORMANCE OF A SHORT BEARING LUBRICATED WITH A MAGNETIC FLUID 

      Autor: Patel U., Rachana; Deheri M., G.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      This paper aims at analyzing the effect of velocity slip on the behavior of a magnetic fluid based infinitely short hydrodynamic slider bearing. Solving the Reynolds’ equation, the expression for pressure distribution is ...
    • Emittance Characterization of Ion Beams Provided by Laser Plasma 

      Autor: Velardi, Luciano; Side, Domenico Delle; Marco, Massimo De; Nassisi, Vincenzo
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Laser ion sources offer the possibility to obtain ion beams useful for particle accelerators. Nanosecond pulsed lasers at intensities of the order of 108 W/cm2, interacting with solid matter in a vacuum, produce plasma of ...
    • Emmy Noether and Linear Evolution Equations 

      Autor: Leach , P. G. L.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Noether’s Theorem relates the Action Integral of a Lagrangian with symmetries which leave it invariant and the first integrals consequent upon the variational principle and the existence of the symmetries. These each have ...
    • EMPLOYMENT, PRODUCTION AND CONSUMPTION WITH RANDOM UPDATE: NON-EQUILIBRIUM STATIONARY STATE EQUATIONS 

      Autor: Lavička , Hynek; Novotný , Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      In this work, we investigate the Model of Employment, Production and Consumption, as introduced in a series of papers by I. Wright [1–3] from the perspective of statistical physics, and we focus on the presence of equilibrium. ...
    • EROSITA: AGN SCIENCE, BACKGROUND DETERMINATION, AND OPTICAL FOLLOW-UP SPECTROSCOPY 

      Autor: Boller, Thomas
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      More than 20 years after the highly impacting ROSAT all-sky survey in the soft X-ray spectral range, we are close to the next major X-ray all/sky surveys with eROSITA. eROSITA will be the primary instrument on-board the ...
    • Estimation of Amount of Scattered Neutrons at Devices PFZ and GIT-12 by MCNP Simulations 

      Autor: Šíla , Ondrej; Kubeš , Pavel; Kravárik , Josef; Rezác , Karel; Klír , Daniel; Cikhardt , Jakub
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Our work is dedicated to pinch effect occurring during current discharge in deuterium plasma, and our results are connected with two devices – plasma focus PFZ, situated in the Faculty of Electrical Engineering, CTU, Prague, ...
    • EXAMPLES OF QUANTUM HOLONOMY WITH TOPOLOGY CHANGES 

      Autor: Cheon , Taksu; Tanaka , Atushi; Turek , Ondřej
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      We study a family of closed quantum graphs described by one singular vertex of order n = 4. By suitable choice of the parameters specifying the singular vertex, we can construct a closed path in the parameter space that ...
    • EXTREMAL VECTORS FOR VERMA TYPE REPRESENTATION OF B2 

      Autor: Burdík , Čestmír; Navrátil , Ondřej
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Starting from the Verma modules of the algebra B2 we explicitly construct factor representations of the algebra B2 which are connected with the unitary representation of the group SO(3, 2). We find a full set of extremal ...
    • FACTOR AND PALINDROMIC COMPLEXITY OF THUE-MORSE’S AVATARS 

      Autor: Frougny , Christiane; Klouda , Karel
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Two infinite words that are connected with some significant univoque numbers are studied. It is shown that their factor and palindromic complexities almost coincide with the factor and palindromic complexities of the famous ...
    • Finding Hidden Treasures: Investigations in US Astronomical Plate Archives 

      Autor: Hudec , René; Hudec , Lukáš
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      We report here on an ongoing investigation of US astronomical plate archives and tests of the suitability of transportable scanning devices for in situ digitization of archival astronomical plates.
    • FOREWORD: THREE QUARTERS A CENTURY 

      Autor: Exner , Pavel
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Foreword
    • Fractal Dimension Estimation in Diagnosing Alzheimer’s Disease 

      Autor: Hubata-Vacek , Václav; Kukal , Jaromír; Rusina , Robert; Buncová , Marie
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Estimated entropies from a limited data set are always biased. Consequently, it is not a trivial task to calculate the entropy in real tasks. In this paper, we used a generalized definition of entropy to evaluate the ...