Now showing items 591-598 of 598

    • X-ray emission from magnetic massive stars 

      Nazé, Yaël; Petit, Véronique; Rinbrand, Melanie; Cohen, David H.; Owocki, Stanley P.; Ud-Doula, Asif; Wade, Gregg A. (2014-10-30)
      Magnetically confined winds of early-type stars are expected to be sources of bright and hard X-rays. To clarify the systematics of the observed X-ray properties, we have analyzed a large series of Chandra and XMM-Newton ...
    • An X-ray imaging survey of quasar jets: Testing the inverse Compton model 

      Marshall, Herman L.; Gelbord, Jonathan M.; Schwartz, Daniel A.; Murphey, David W.; Lovell, James E. J.; Worrall, Diana M.; Birkinshaw, Mark; Perlman, Eric S.; Godfrey, Leith E. H.; Jauncey, David L. (2011-03-01)
      We present results from continued Chandra X-ray imaging and spectroscopy of a flux-limited sample of flat spectrum radio-emitting quasars with jet-like extended structure. X-rays are detected from 24 of the 39 jets observed ...
    • X-ray nuclear activity in S4G barred galaxies: no link between bar strength and co-occurrent supermassive black hole fueling 

      Cisternas, Mauricio; Gadotti, Dimitri A.; Knapen, Johan H.; Kim, Taehyun; Díaz-García, Simón; Laurikainen, Eija; Salo, Heikki; González-Martín, Omaira; Ho, Luis C.; Mizusawa, Trisha (2013-10-10)
      Stellar bars can lead to gas inflow toward the center of a galaxy and stimulate nuclear star formation. However, there is no compelling evidence on whether they also feed a central supermassive black hole: by measuring the ...
    • Zero Emissions Sulphur Recovery Production 

      Alqattan, Ahmad; Alshatti, Naser; Alajmi, Qahsan; Alajmi, Fahad
      A designed process for the concurrent production of hydrogen and Sulphur from a H2S containing gas stream (acid gas) with zero emissions. The method uses catalytic oxidative cracking, COC, of H2S to form H2 and S2. In ...
    • Zero-knowledge proofs for mix-nets of secret shares 

      Silaghi, Marius Cӑlin (2005-03-07)
      Mix-nets can be used to shuffle vectors of shared secrets. This operation can be an important building block for solving combinatorial problems where constraints are secret to different participants. A main contribution ...
    • ZnO nanorod-smectic liquid crystal composites: Role of ZnO particle size, shape, and concentration on liquid crystal order and current-voltage properties 

      Branch, J.; Thompson, Raymond G.; Taylor, Jefferson W.; Salamanca-Riba, Lourdes G.; Martínez-Miranda, Luz J. (2014-04-30)
      This paper investigates how changing the ZnO nanorod size and concentration in a smectic liquid crystal affect the order of the liquid crystal and the current-voltage (I-V) curves in these ZnO nanorods - octylcyanobiphenyl ...
    • δ Sct-type pulsations in eclipsing binary systems: Y Cam 

      Wood, Matt A.; Rodríguez, Eloy; García, Juan Mario; Costa, Víctor M.; Lampens, Patricia; Van Cauteren, Paul; Mkrtichian, David E.; Olson, Edward C.; Amado, Pedro J.; Daszyńska-Daszkiewicz, Jadwiga (2010)
      We present the results of a three-continent multisite photometric campaign carried out on the Algol-type eclipsing binary system Y Cam, in which the primary component is a multiperiodic δ Sct-type pulsator. The observations ...
    • Υ(1S+2S+3S) production in d+Au and p+p collisions at √s NN=200 GeV and cold-nuclear-matter effects 

      Adare, Andrew Marshall; Afanasiev, Sergei V.; Aidala, C.; Ajitanand, N. N.; Akiba, Yasuyuki; Akimoto, R.; Baksay, Gyöngyi; Baksay, Laszlo; Hohlmann, Marcus; Rembeczki, S. (2013-04-25)
      The three Υ states, Υ(1S+2S+3S), are measured in d+Au and p+p collisions at √sNN=200 GeV and rapidities 1.2<|y|<2.2 by the PHENIX experiment at the Relativistic Heavy Ion Collider. Cross sections for the inclusive Υ(1S+2S+3S) ...