Now showing items 306-325 of 956

    • The Hall current system revealed as a statistical significant pattern during fast flows 

      Snekvik, Kristian; Nakamura, R.; Østgaard, Nikolai; Haaland, Stein; Retinò, A. (European Geosciences Union, 2008-11-05)
      We have examined the dawn-dusk component of the magnetic field, BY , in the night side current sheet during fast flows in the neutral sheet. 237 h of Cluster data from the plasma sheet between 2 August 2002 and 2 October ...
      Journal articlePeer reviewed
    • Heavy flavor azimuthal correlations in PYTHIA generated proton-proton collisions at LHC energies 

      Johansen, Marius Ole (The University of Bergen, 2014-11-20)
      The ALICE detector at CERN is a promising tool for the study of the Quark-Gluon Plasma (QGP), an exotic state of matter thought to be present in the early Universe. The study of partonic energy loss reveals vital information ...
      Master thesis
    • Heterogeneous distributed calibration framework for the high level trigger in ALICE 

      Bablok, Sebastian Robert (The University of Bergen, 2009-02-13)
      This thesis focusses on the development of a distributed and re-configurable online calibration environment for the ALICE (A Large Ion Collider Experiment) HLT (High Level Trigger). ALICE1 is one of the four major ...
      Doctoral thesis
    • Heterogeneous Hydrate Nucleation on Calcite {1014} and Kaolinite {001} Surfaces: A Molecular Dynamics Simulation Study 

      Mohammad, Numan (The University of Bergen, 2016-06-01)
      Natural gas hydrates are of significant interest due to the great amount of methane that can potentially be utilised as an energy source. These methane resources are trapped in ice-like form, which is a concern ...
      Master thesis
    • The Higgs Boson in Less Constrained Supersymmetric Models 

      Pettersen, Helge Egil Seime (The University of Bergen, 2012-06-01)
      In this thesis, we explore the phenomenological minimal supersymmetric standard model (pMSSM) in the context of the Higgs boson. If the emerging results from the LHC are real, will the pMSSM be able to accommodate this? ...
      Master thesis
    • The Higgs-like boson spin from the center–edge asymmetry in the diphoton channel at the LHC 

      Osland, Per; Pankov, Alexander A.; Tsytrinov, Andrej V. (Springer, 2015-05-07)
      We discuss the discrimination of the 125 GeV spin-parity 0+ Higgs-like boson observed at the LHC, decaying into two photons, H→γγ, against the hypothesis of a minimally coupled JP=2+ narrow diphoton resonance with the same ...
      Journal article
    • High Back Pressure on Pressure Safety Valves (PSVs) in a Flare System. Developing the Simulation model, Identifying and analyzing the back-pressure build-up 

      Sahoo, Muktikanta (The University of Bergen, 2013-10-01)
      Process safety is a disciplined framework for managing the integrity of operating systems and processes handling hazardous substances. It is achieved by applying good design principles, engineering, and operating and ...
      Master thesis
    • High Harmonic Generation in Strongly Correlated Systems 

      Lysne, Markus (The University of Bergen, 2018-06-23)
      In recent years, the study of phenomena pertaining to non-linear properties of materials has seen a major upswing - especially in the context of High Harmonic Generation (HHG). In this thesis, an account of the current ...
      Master thesis
    • High voltage electrical discharges in the laboratory 

      Grøndahl, Øystein (The University of Bergen, 2014-12-18)
      A new phenomenon called terrestrial gamma-ray flashes (TGFs) was discovered early in the 1990s by the NASA satellite Compton Gamma-Ray Observatory. The short-duration bursts of highly energetic gamma-rays are caused by ...
      Master thesis
    • High-latitude magnetic fields and their time derivatives: interhemispheric similarities 

      Viljanen, Ari; Tanskanen, Eija Irene (Springer, 2013-02-19)
      There are two simple and objective measures of geomagnetic activity: the daily range of field components, and the daily maximum of the time derivative of the field. We study these using data from the geomagnetic latitude ...
      Journal article
    • High-order harmonic generation from graphene: Strong attosecond pulses with arbitrary polarization 

      Sørngård, Stian Astad; Simonsen, Sigrid Ina; Hansen, Jan Petter (American Physical Society, 2013-05-03)
      We explore high-order harmonic generation (HHG) from a graphene sheet exposed to intense femtosecond laser pulses based on the Lewenstein model. It is demonstrated that the HHG cutoff frequency increases with graphene ...
      Peer reviewedJournal article
    • Higher harmonic flow coefficients of identified hadrons in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV 

      Adam, Jaroslav; Adamová, Dagmar; Aggarwal, Madan M.; Aglieri Rinella, Gianluca; Agnello, Michelangelo; Agrawal, Nikita; Ahammed, Zubayer; Ahmad, Shafiq F.; Ahn, Sang Un; Aiola, Salvatore; Alme, Johan; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Altinpinar, Sedat; Djuvsland, Øystein; Lønne, Per-Ivar; Nystrand, Joakim; Rehman, Attiq ur; Røhrich, Dieter; Tambave, Ganesh Jagannath; Ullaland, Kjetil; Velure, Arild; Wagner, Boris; Zhang, Hui; Zhou, Zhuo; Zhu, Hongsheng; 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; Akindinov, Alexander; Alam, Sk Noor; De Albuquerque, Danilo Silva; Aleksandrov, Dimitry; Alessandro, Bruno; Alexandre, Didier; Alfaro Molina, José Rubén; Alici, Andrea; ALICE, Collaboration (Springer, 2016-09)
      The elliptic, triangular, quadrangular and pentagonal anisotropic flow coefficients for $\pi^{\pm}$, $\mathrm{K}^{\pm}$ and p+$\overline{\mathrm{p}}$ in Pb-Pb collisions at $\sqrt{s_\mathrm{{NN}}} = 2.76$ TeV were measured ...
      Journal article
    • Highlights of experimental results from ALICE 

      Acharya, Shreyasi; Adam, Jaroslav; Adamová, Dagmar; Adolfsson, Jonatan; Aggarwal, Madan M.; Aglieri Rinella, G; Agnello, Michelangelo; Agrawal, Nikita; Ahammed, Zubayer; Ahn, SU; Alme, Johan; Altenkaemper, Lucas; Arsene, Ionut Christian; Bätzing, Paul Christoph; Djuvsland, Øystein; Dordic, Olja; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Langøy, Rune; Lardeux, Antoine Xavier; Lien, Jørgen André; Lindal, Svein; Lønne, Per-Ivar; Mahmood, Sohail Musa; Milosevic, Jovan; Nesbø, Simon Voigt; Nystrand, Joakim; Rehman, Attiq Ur; Richter, Matthias Rudolph; Røed, Ketil; Røhrich, Dieter; Skaali, Toralf Bernhard; Tambave, Ganesh Jagannath; Tveter, Trine Spedstad; Ullaland, Kjetil; Velure, Arild; Wagner, Boris; Wikne, Jon Christopher; Zhang, Hui; Zhao, Chengxin; Zhou, Zhuo; Zhu, Hongsheng; Aiola, Salvatore; Akindinov, Alexander; Alam, Sk Noor; Alba, José Luis Bazo; De Albuquerque, Danilo Silva; Aleksandrov, Dimitry; Allessandro, B; ALICE, Collaboration (Elsevier, 2017-11)
      Highlights of recent results from the ALICE collaboration are presented. The collision systems investigated are Pb–Pb, p–Pb, and pp, and results from studies of bulk particle production, azimuthal correlations, open and ...
      Journal article
    • History Matching with Reduced Parameterization and Fast Streamline-based Sensitivities 

      Ibrahim, Fethia Abdulkerim (The University of Bergen, 2012-09-27)
      The main goal of history matching is to construct updated models capable of predicting the future performance of the reservoir more accurately. History matching method requires a solution of inverse problem to minimize the ...
      Master thesis
    • Holographic interferometry and its application in visualizing particle movements in continuous flow 

      Magnussen, Stian (The University of Bergen, 2004)
      This thesis presents the work performed at the Department of Physics and Technology at the University of Bergen during a collaborative project funded by Statoil. The parties in this collaboration were the University of ...
      Master thesis
    • Holographic multi-stereogram constructed from computer images : Applied 3-D printer 

      Olsen, Kjell Einar (The University of Bergen, 1996)
      The aim of this thesis is to develop a method to convert computer images to a holographic film plate. In the recording process of holographic multi-stereograms, one uses a liquid crystal display (LCD) to show 70 different ...
      Master thesis
    • How different safety barriers affect the margin between available and required evacuation time 

      Apeland, Wenche (The University of Bergen, 2015-06-01)
      The main purpose of this thesis has been to document that people can evacuate to temporarily safe locations / safe distances during the defined escalating jet fire scenario. It has been important to document that ...
      Master thesis
    • How do laypeople evaluate the degree of certainty in a weather report? A case study of the use of the Web service yr.no 

      Sivle, Anders Honningdal; Kolstø, Stein Dankert; Hansen, Pål Kirkeby; Kristiansen, Jens (American Meteorological Society, 2014-07)
      Many people depend on and use weather forecasts to plan their schedules. In so doing, ordinary people with no expertise in meteorology are frequently called upon to interpret uncertainty with respect to weather forecasts. ...
      Journal article
    • How Often Do Thermally Excited 630.0 nm Emissions Occur in the Polar Ionosphere? 

      Kwagala, Norah Kaggwa; Oksavik, Kjellmar; Lorentzen, Dag Arne; Johnsen, Magnar Gullikstad (American Geophysical Union, 2018-01)
      This paper studies thermally excited emissions in the polar ionosphere derived from European Incoherent Scatter Svalbard radar measurements from the years 2000–2015. The peak occurrence is found around magnetic noon, where ...
      Journal article
    • How the IMF By induces a By component in the closed magnetosphere and how it leads to asymmetric currents and convection patterns in the two hemispheres 

      Tenfjord, Paul; Østgaard, Nikolai; Snekvik, Kristian; Laundal, Karl Magnus; Reistad, Jone Peter; Haaland, Stein; Milan, Steve (Wiley, 2015-11-12)
      We used the Lyon-Fedder-Mobarry global magnetohydrodynamics model to study the effects of the interplanetary magnetic field (IMF) By component on the coupling between the solar wind and magnetosphere-ionosphere system. ...
      Journal article