Now showing items 273-292 of 436

  • Nanostructuring of free-standing, dielectric membranes using electron-beam lithography 

    Grepstad, Jon Olav; Greve, Martin Møller; Reisinger, Thomas; Holst, Bodil (American Institute of Physics, 2013)
    Nanostructured dielectric membranes are used in several applications ranging from de Broglie matter-wave optical elements to photonic crystals. Precise pattern transfer and high aspect ratio structures are crucial for ...
    Journal article
  • Neutral atom and molecule focusing using a Fresnel zone plate 

    Reisinger, Thomas; Holst, Bodil (American Institute of Physics, 2008)
    Focusing of neutral atoms and molecules has several potential applications. The very first microscopy images using helium as an imaging probe were published earlier this year. Another possible application is to study the ...
    Peer reviewedJournal article
  • Neutral pion production at midrapidity in pp and Pb–Pb collisions at √sNN =2.76 TeV 

    Abelev, Betty; Adam, Jaroslav; Adamová, Dagmar; Aggarwal, Madan M.; Agnello, Michelangelo; Agostinelli, Andrea; Agrawal, Nikita; Aguilar Salazar, Saul; Ahammed, Zubayer; Ahmad, Nazeer; Alme, Johan; Erdal, Hege Austrheim; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Altinpinar, Sedat; Djuvsland, Øystein; Fehlker, Dominik; Haaland, Øystein Senneset; Huang, Meidana; Kanaki, Kalliopi; Liu, Lijiao; Lønne, Per-Ivar; Nystrand, Joakim; Rehman, Attiq ur; Skjerdal, Kyrre; Ullaland, Kjetil; Velure, Arild; Wagner, Boris; Yang, Shiming; Zhou, Zhuo; Arsene, Ionut Christian; Bätzing, Paul Christoph; Dordic, Olja; Lindal, Svein; Mahmood, Sohail Musa; Milosevic, Jovan; Qvigstad, Henrik; Richter, Matthias; Røed, Ketil; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Zhao, Chengxin; Langøy, Rune; Lien, Jørgen André; Ahmed, Ijaz; Ahn, Sang Un; Ahn, Sul-Ah; Aiola, Salvatore; ALICE, Collaboration (The University of Bergen, 2014-10)
    Invariant yields of neutral pions at midrapidity in the transverse momentum range 0.6<pT<12GeV/ c measured in Pb–Pb collisions at √sNN=2.76 TeV are presented for six centrality classes. The pp reference spectrum was measured ...
    Journal article
  • Neutral Pion Production in p-Pb Collisions at √s^NN = 5.02 TeV with ALICE PHOS at the LHC 

    Zhu, Hongsheng (The University of Bergen, 2015-08-24)
    In this thesis, the neutral mesons measurement with ALICE PHOS at the LHC is presented. Depending on the technical design of PHOS and its momentum reach, the strategies of the neutral mesons extraction by invariant mass ...
    Master thesis
  • Neutral Pion Production in pp Collisions at √s = 2.76 TeV at the LHC with the ALICE Detector using the Electromagnetic Calorimeter 

    Zhang, Haitao (The University of Bergen, 2015-07-13)
    In this thesis the measurement of the neutral pion yield and its differential invariant cross section in pp collisions at √s = 2.76 TeV is presented. The π^0 s are measured in the two photon decay channel and photons are ...
    Master thesis
  • New experimental techniques to study the adhesion to various solid surfaces of hydrate-relevant droplets and particles 

    Dahl, Maren Andrea (The University of Bergen, 2010-10-01)
    Hydrate plugging is a substantial problem in the oil and gas industry, both economically, environmentally and safety wise. Plugging may occur as a result of agglomeration of hydrate particles, deposition of hydrates on ...
    Master thesis
  • New hydrate risk evaluation for processing and transport of natural gas containing water and impurities 

    Kulkarni, Anuli Avinash (The University of Bergen, 2014-10-16)
    The growth of natural gas transport by pipeline has led to the establishment of a large network of pipelines throughout the world [1]. Transport of natural gas through a network of pipelines is a challenging issue, mainly ...
    Master thesis
  • A new method reveals more TGFs in the RHESSI data 

    Gjesteland, Thomas; Østgaard, Nikolai; Collier, A. B.; Carlson, B. E.; Eyles, C.; Smith, D. M. (American Geophysical Union, 2012-03-07)
    Peer reviewedJournal article
  • New method to detect rotation in high-energy heavy-ion collisions 

    Csernai, Laszlo; Svelle, Sindre; Wang, Du-Juan (American Physical Society, 2014-03-31)
    With increasing beam energies the angular momentum of the fireball in peripheral heavy-ion collisions increases, and the proposed differential Hanbury Brown and Twiss analysis is able to estimate this angular momentum ...
    Journal article
  • NMR measurements of wettability alternation in Berea Sandstone 

    Vevle, Joar (The University of Bergen, 2011-11-28)
    When a new oil reservoir is discovered and a production strategy is chosen the knowledge about wettability characteristics for the field is of outermost importance. Wettability is a key factor for fluid distribution ...
    Master thesis
  • A Novel Approach to Acoustic Liquid Density Measurements Using a Buffer Rod Based Measuring Cell 

    Bjørndal, Erlend; Frøysa, Kjell-Eivind; Engeseth, Svein-Atle (IEEE, 2008-08-08)
    A new method for measuring the pressure reflection coefficient in a buffer rod configuration is presented, together with experimental results for acoustic measurements of the liquid density, based on the measurement of the ...
    Peer reviewedJournal article
  • Nuclear methods for subsea fluid characterization 

    Meriç, Ilker (The University of Bergen, 2012-06-20)
    Doctoral thesis
  • Nuclear modification factor for charged pions and protons at forward rapidity in central Au plus Au collisions at 200 GeV 

    Arsene, Ionut Christian; Bearden, Ian G.; Beavis, Dana; Besliu, Calin; Budick, Barton; Bøggild, Hans; Boggild, H; Chasman, Chellis; Christensen, Claus Hviid; Christiansen, Peter C.; Debbe, Ramiro; Enger, Elin; Gaardhoje, Jens Jørgen; Germinario, Marco; Hagel, Krys; Holm, Anders; Ito, Hironori; Jipa, Alexandru; Jundt, Francis; Jørdre, Jens Ivar; Jorde, JI; Jørgensen, Claus E.; Jorgensen, CE; Karabowicz, R.; Kim, EunJu; Kozik, Tomasz; Larsen, Truls Martin; Lee, Jeong-Hun; Lee, Yung K.; Lindal, Svein; Lystad, G; Lystad, Ronny; Løvhøiden, Gunnar; Majka, Zbigniew; Makeev, Andrew; Mikelsen, Mads; Murray, Michael J.; Natowitz, Joseph B.; Nielsen, Børge Svane; Ouerdane, Djamel; Planeta, Roman; Rami, Fouad; Ristea, Carmen; Ristea, Oana; Røhrich, Dieter; Rhrich, D; Samset, Bjørn Hallvard; Sandberg, Daniel; Sanders, Stephen J.; Staszel, Pawel; Tveter, Trine Spedstad; Videbaek, F; Videbæk, Flemming; Wada, Ryoichi; Yang, Hongyan; Yin, Zhongbaao; Zgură, Ion Sorin; Zgura, IS (Elsevier, 2007-07)
    We present spectra of charged pions and protons in 0–10% central Au + Au collisions at View the MathML sourcesNN=200 GeV at mid-rapidity (y=0y=0) and forward pseudorapidity (η=2.2η=2.2) measured with the BRAHMS experiment ...
    Journal article
  • The number of link and cluster states: the core of the 2D q state Potts model 

    Hove, Joakim (Institute of Physics Publishing, 2005-11-30)
    Due to Fortuin and Kastelyin the q state Potts model has a representation as a sum over random graphs, generalizing the Potts model to arbitrary q is based on this representation. A key element of the random cluster ...
    Journal articlePeer reviewed
  • Numerical and experimental study of the vortex length in a gas cyclone 

    Svensen, Ellinor Arguilla (The University of Bergen, 2012-09-01)
    Numerical and experimental study of the vortex length in a gas cyclone. Using a central composite design to find which factors influence the vortex length.
    Master thesis
  • Numerical computations of pressurized liquefied gas releases into the atmosphere 

    Ichard, Mathieu (The University of Bergen, 2012-04-13)
    There is great concern about accidental releases and dispersion of toxic and flammable industrial chemicals into the atmosphere. Their toxic effects and/or flammable properties, combined with their widespread use and ...
    Doctoral thesis
  • Numerical Modeling of Supercritical ‘Out-Salting’ in the “Atlantis II Deep” (Red Sea) Hydrothermal System 

    Hovland, Martin; Rueslåtten, Håkon; Kuznetsova, Tatiana; Kvamme, Bjørn; Fladmark, Gunnar E.; Johnsen, Hans Konrad (Bentham Open, 2007)
    Supercritical water behaves close to that of a non-polar fluid and its ability to dissolve salt ions is very low. In rifting locations world-wide, where hot vents occur, it has been shown that seawater attains supercritical ...
    Peer reviewedJournal article
  • Numerical simulations of the flow and plugging behaviour of hydrate particles 

    Fatnes, Eirik Daniel (The University of Bergen, 2010-05-06)
    Abstract The main hydrate mitigation used by the industry today is to avoid formation at all cost. Avoidance of hydrate formation is made possible by use of inhibitors such as methanol or glycol. These are so called ...
    Master thesis
  • Observation of an excited B[± over c] meson state with the ATLAS detector 

    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; 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.; Adamczyk, Leszek; Adams, David; Adelman, Jareed; Adomeit, Stefanie; Adye, Tim; Agatonovic-Jovin, Tatjana; Aguilar Saavedra, Juan Antonio; Agustoni, Marco; Åkerstedt, Henrik; Åkesson, Torsten P.A.; Åsman, Barbro; ATLAS, Collaboration (American Physical Society, 2014-11-21)
    A search for excited states of the B[± over c] meson is performed using 4.9  fb[superscript −1] of 7 TeV and 19.2  fb[superscript −1] of 8 TeV pp collision data collected by the ATLAS experiment at the LHC. A new state is ...
    Journal article