Now showing items 438-457 of 651

    • Particle Production in p+p and d+Au Collisions at √sNN = 200 GeV 

      Yang, Hongyan (The University of Bergen, 2007-12-14)
      Doctoral thesis
    • Particle–wave discrimination in Poisson spot experiments 

      Reisinger, Thomas; Bracco, Gianangelo; Holst, Bodil (IOP Publishing Ltd, 2011)
      Matter–wave interferometry has been used extensively over the last few years to demonstrate the quantum-mechanical wave nature of increasingly larger and more massive particles. We have recently suggested the use of ...
      Peer reviewedJournal article
    • PEPT: an invaluable tool for 3-D particle tracking and CFD simulation verification in hydrocyclone studies 

      Chang, Yu-Fen; Adamsen, Tom Christian; Pisarev, Gleb; Hoffmann, Alex Christian (EDP Sciences, 2013)
      Particle tracks in a hydrocyclone generated both experimentally by positron emission particle tracking (PEPT) and numerically with Eulerian-Lagranian CFD have been studied and compared. A hydrocyclone with a cylinder-on-cone ...
      Journal article
    • Performance Evaluation of a Small-Animal PET/CT System 

      Dahle, Tordis Johnsen (The University of Bergen, 2014-06-02)
      This master project is the first vendor-independent performance evaluation of the new nanoScan PET/CT system at the University of Bergen. A comprehensive performance evaluation of a novel scanner is very important, ...
      Master thesis
    • Performance of the ATLAS muon trigger in pp collisions at $\sqrt{s}=$8 TeV 

      Aad, Georges; Abbott, Brad; Abdallah, Jalal; Abdel Khalek, Samah; Abdinov, Ovsat Bahram oglu; Aben, Rosemarie; Abi, Babak; Abolins, Maris; AbouZeid, Hass; Abramowicz, Halina; Buanes, Trygve; Dale, Ørjan; Eigen, Gerald; Kastanas, Alex; Liebig, Wolfgang; Lipniacka, Anna; Martin dit Latour, Bertrand; Rosendahl, Peter Lundgaard; Sandaker, Heidi; Sjursen, Therese B.; Smestad, Lillian; Stugu, Bjarne; Ugland, Maren; Bugge, Lars; Bugge, Magnar Kopangen; Cameron, David Gordon; Catmore, James Richard; Czyczula, Zofia; Franconi, Laura; Gjelsten, Børge Kile; Gramstad, Eirik; Ould-Saada, Farid; Pajchel, Katarina; Pedersen, Maiken; Read, Alexander Lincoln; Røhne, Ole Myren; Stapnes, Steinar; Strandlie, Are; Abreu, Henso; Abreu, Rômulo F.; Abulaiti, Yiming; Acharya, Bobby S.; Adamczyk, Leszek; Adams, David; Adelman, Jareed; Adomeit, Stefanie; Adye, Tim; Agatonovic-Jovin, Tatjana; Aguilar Saavedra, Juan Antonio; Agustoni, Marco; ATLAS, Collaboration (Springer, 2015-03-13)
      The performance of the ATLAS muon trigger system has been evaluated with proton--proton collision data collected in 2012 at the Large Hadron Collider at a centre-of-mass energy of 8 TeV. The performance was primarily ...
      Journal article
    • Performance of the High Level Trigger gamma-conversion reconstruction chain in the ALICE central tracking detectors 

      Solem, Thomas Christopher (The University of Bergen, 2011-06-01)
      Photons are produced through various processes in the particle and nuclei collisions at the LHC, and pose as useful probes of the formation of a Qaurk-Gluon Plasma. The probability of a photon converting within the central ...
      Master thesis
    • Periodic shock-emission from acoustically driven cavitation clouds: a source of the subharmonic signal 

      Johnston, Keith; Tapia-Siles, Cecilia; Gerold, Bjoern; Postema, Michiel; Cochran, Sandy; Cuschieri, Alfred; Prentice, Paul (Elsevier, 2014-12)
      Single clouds of cavitation bubbles, driven by 254 kHz focused ultrasound at pressure amplitudes in the range of 0.48–1.22 MPa, have been observed via high-speed shadowgraphic imaging at 1 × 10⁶ frames per second. Clouds ...
      Journal article
    • Permittivity measurements using dual open ended coaxial probes 

      Karimi, Mahsa (The University of Bergen, 2012-11-19)
      The motivation for this study has been to conduct a feasibility study on a measuring device to monitor hydrate formation close to the inner surface of a pipe where a multiphase hydrocarbon fluid mixture is flowing. This ...
      Master thesis
    • Petrophysical characterization in paleokarst and effect on reservoir properties 

      Slotnæs, Katrine Nordlund (The University of Bergen, 2012-06-29)
      Karst is a geological process that can enhance porosity and permeability within a carbonate succession, thus affecting the heterogeneity producing a substantial effect on the fluid flow. The subject is not widely explored ...
      Master thesis
    • Phase Field Theory Modeling of CH4 and CO2 Fluxes from Exposed Natural Gas Hydrate Reserviors 

      Baig, Khuram (The University of Bergen, 2009-10-01)
      Natural gas hydrates are widely distributed in sediments along continental margins, and harbor enormous amounts of energy. Gas hydrates are crystalline solids which occur when water molecules form a cage like structure ...
      Master thesis
    • Phase field theory modeling of CH4/CO2 gas hydrates in gravity fields 

      Qasim, M.; Kvamme, B.; Baig, K. (PiscoMed Publishing, 2011)
      Natural gas hydrates in reservoirs are thermodynamically unstable due to the interactions with surrounding fluids (aqueous, gas) and mineral surfaces. Depending on the local flow hydrate will dissociate as well as reform. ...
      Journal article
    • Phase transitions in non-equilibrium dynamical systems 

      Horvát, Szabolcs (The University of Bergen, 2010-12-09)
      This work is a summary of three papers (references [5, 14, 24]), which deal with modelling the hadronization and freeze-out in heavy ion collisions. There is evidence that this is a non-equilibrium process, and therefore ...
      Doctoral thesis
    • Photon, neutrino and charged particle spectra from R-violating gravitino decays 

      Bomark, Nils-Erik; Lola, Smaragda; Osland, Per; Raklev, Are Reinert (Elsevier, 2010-03-22)
      We study photonic, neutrino and charged particle signatures from slow decays of gravitino dark matter in supersymmetric theories where R-parity is explicitly broken by trilinear operators. Photons and (anti-)fermions from ...
      Journal article
    • Photoproduction of ρ0 and Two–photon Production of Lepton Pairs in Ultra–peripheral Pb–Pb Collisions at the CERN LHC 

      Skjerdal, Kyrre (The University of Bergen, 2014-06-10)
      This thesis is based on the analysis of ultra–peripheral collisions collected by the ALICE Collaboration at the CERN LHC. ALICE is a general purpose detector designed to study heavy-ion collisions at ultra–relativistic ...
      Doctoral thesis
    • The Physics of the B Factories 

      Eigen, Gerald; Stugu, Bjarne; Sun, Liang (Springer, 2014-11)
      Journal article
    • Poisson’s spot with molecules 

      Reisinger, Thomas; Patel, Amil A.; Reingruber, Herbert; Fladischer, Katrin; Ernst, Wolfgang E.; Bracco, Gianangelo; Smith, Henry I.; Holst, Bodil (The American Physical Society, 2009)
      In the Poisson-spot experiment, waves emanating from a source are blocked by a circular obstacle. Due to their positive on-axis interference an image of the source the Poisson spot is observed within the geometrical shadow ...
      Peer reviewedJournal article
    • Polarization-independent CP-violation in SUSY theories 

      Vereshagin, Alexander (The University of Bergen, 2013-02-01)
      Supersymmetry (SUSY) is a beautiful mathematical concept which binds internal symmetries of a quantum field theory with global symmetries of the space-time. Applications of this approach may stretch from unsolved puzzles ...
      Doctoral thesis
    • Polymer Enhanced Foam in Unconsolidated Sand 

      Lande, Silje (The University of Bergen, 2016-06-01)
      Foam is an EOR technique that significantly can improve the macroscopic sweep efficiency by lowering the gas mobility. Limited stability of conventional surfactants for foam generation is one of the reasons why foam is not ...
      Master thesis
    • Pore-level foam generation and flow for mobility control in fractured systems 

      Gauteplass, Jarand; Chaudhary, Kuldeep; Kovscek, Anthony R.; Fernø, Martin A. (Elsevier, 2015-03-05)
      Pore-level foam generation, propagation, and sweep efficiency were visualized using silicon-wafer micromodels with an accurate representation of sandstone pore structure, grain shapes and sizes based on thin-section analysis. ...
      Journal article