Now showing items 325-344 of 535

    • 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
    • Near-surface petrochemical sensing using coplanar waveguides 

      Solberg, Magnus Lien (The University of Bergen, 2015-09-11)
      The project studies the ability of coplanar waveguide sensor in sensing thin layers of petrochemical liquid. A coplanar waveguide is built on flexible printable circuit board partially based on an existing design. Two ...
      Master thesis
    • Network analysis of geomagnetic substorms using the SuperMAG database of ground-based magnetometer stations 

      Dods, Joe; Chapman, Sandra; Gjerløv, Jesper (Wiley, 2015-09-26)
      The overall morphology and dynamics of magnetospheric substorms is well established in terms of the observed qualitative auroral features seen in ground-based magnetometers. This paper focuses on the quantitative ...
      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
    • A new population of terrestrial gamma-ray flashes in the RHESSI data 

      Østgaard, Nikolai; Albrechtsen, Kjetil; Gjesteland, Thomas; Collier, Andrew B. (AGU Publications, 2015-12-23)
      Terrestrial gamma-ray flashes (TGFs) are the most energetic photon phenomenon occurring naturally on Earth. An outstanding question is as follows: Are these flashes just a rare exotic phenomenon or are they an intrinsic ...
      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 Nonlinear Differential Equation Solver With Potential Application to Pelton Turbines 

      Tveit, Jesper (The University of Bergen, 2016-05-02)
      The focus in this thesis is the development and implementation of a new method for solving nonlinear differential equations on a grid. The method’s novelty lies in the way it represents continuously distributed variables ...
      Doctoral thesis
    • Nonlinear echoes from encapsulated antibubbles 

      Johansen, Kristoffer; Kotopoulis, Spiros; Poortinga, Albert T.; Postema, Michiel (Elsevier B.V., 2015-09-19)
      An antibubble consists of a liquid droplet, surrounded by a gas, often with an encapsulating shell. Antibubbles of microscopic sizes suspended in fluids are acoustically active in the ultrasonic range. Antibubbles have ...
      Journal article
    • 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
    • A novel synthesis of tin oxide thin films by the sol-gel process for optoelectronic applications 

      Maharajan, Marikkannan; Venkatachalapathy, Vishnukanthan; Asokan, Vijayshankar; Jeyanthinath, Mayandi; Pearce, Joshua M. (AIP, 2015)
      A novel and simple chemical method based on sol-gel processing was proposed to deposit metastable orthorhombic tin oxide (SnOx) thin films on glass substrates at room temperature. The resultant samples are labeled according ...
      Journal article
    • A novel synthesis of tin oxide thin films by the sol-gel process for optoelectronic applications 

      Maharajan, Marikkannan; Venkatachalapathy, Vishnukanthan; Asokan, Vijayshankar; Jeyanthinath, Mayandi; Pearce, Joshua M. (AIP Publishing, 2015-02-13)
      A novel and simple chemical method based on sol-gel processing was proposed to deposit metastable orthorhombic tin oxide (SnOx) thin films on glass substrates at room temperature. The resultant samples are labeled according ...
      Journal 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