Now showing items 1-16 of 16

    • Cosmic Ray Signatures from Decaying Gravitino Dark Matter 

      Bomark, Nils-Erik; Lola, Smaragda; Osland, Per; Raklev, Are R. (Scuola Internazionale Superiore di Studi Avanzati, 2009)
      We study the charged cosmic rays arising from the slow decay of gravitino dark matter within supersymmetric scenarios with trilinear R-parity violation. It is shown that operators of the LLE type can very well account ...
      Conference object
    • CP Violation in the scalar sector 

      Emmanuel-Costa, David; Øgreid, Odd Magne; Osland, Per; Rebelo, Margarida N. (Proceedings of Science, 2016)
      Models with an extended scalar sector may in principle provide new sources of CP violation originating in the scalar potential. One of the simplest ways to implement this idea is to have CP violation in a two-Higgs-doublet ...
      Conference object
    • Flame Propagation in Dust Clouds: Challenges for Model Validation 

      Skjold, Trygve (2010)
      Modelling of industrial dust explosions poses a formidable challenge to researchers and safety engineers. Whereas current best practice with respect to modelling the consequences of vapour cloud explosions in the petroleum ...
      Conference object
    • Modelling of vented dust explosions – empirical foundation and prospects for future validation of CFD codes 

      Skjold, Trygve; Wingerden, Kees van; Hansen, Olav R.; Eckhoff, Rolf Kristian (Institution of Chemical Engineers (IChemE), 2008)
      Explosion venting is the most frequently used method for mitigating the effects from accidental dust explosions in the process industry. Optimal design of vent systems and credible execution of risk assessments in powder ...
      Conference object
    • Possibilities, limitations, and the way ahead for dust explosion modelling 

      Skjold, Trygve; Larsen, Ø.; Hansen, Olav R. (Institution of Chemical Engineers (IChemE), 2006)
      The purpose of the present paper is threefold. First, a brief review of modelling, main results, and preliminary conclusions from the DESC project are presented; current capabilities and limitations of the DESC code are ...
      Conference object
    • Rotation and Turbulent Instability in Peripheral Heavy Ion Collisions 

      Csernai, Laszlo; Wang, Du-Juan (EDP Sciences, 2014-04-29)
      In recent years fluid dynamical processes became a dominant direction of research in high energy heavy ion reactions. The Quark-gluon Plasma formed in these reactions has low viscosity, which leads to significant fluctuations ...
      Conference object
    • Scattering from spheres and cylinders - revisited 

      Hobæk, Halvor; Nesse, Tonje Lexau (Norwegian Physical Society, 2006)
      Backscattering of sound from elastic spheres is commonly applied for calibration of acoustic systems. Measurements on the "form function" of various tungsten carbide spheres turned out not to match simulations based on ...
      Conference object
    • Simplified modelling of explosion propagation by dust lifting in coal mines 

      Skjold, Trygve; Eckhoff, Rolf Kristian; Arntzen, Bjørn Johan; Lebecki, K.; Dyduch, Z.; Klemens, R.; Zydak, P. (School of Engineering and Electronics, University of Edinburgh, 2007)
      Dispersion of accumulated layers of combustible dust by turbulent flow or shock waves ahead of the propagating flame may sustain explosion propagation in coal mine galleries and other industrial facilities. The mechanisms ...
      Conference object
    • Simualtion of Three-phase Flow in Porous Media Including Capillary Pressure Representing Variation in Rock Wettability 

      Be, Alif; Skauge, Arne; Delshad, M. (EAGE, 2011-04-12)
      Conference object
    • Simulating the Effect of Release of Pressure and Dust Lifting on Coal Dust Explosions 

      Skjold, Trygve (2007)
      Dispersion of accumulated layers of combustible dust by turbulent flow or shock waves ahead of a propagating flame can play an important role for explosion propagation in coal mines. In 1924, Greenwald and Wheeler ...
      Conference object
    • Simulating the Influence of Obstacles on Accelerating Dust and Gas Flames 

      Skjold, Trygve; Pu, Y. K.; Arntzen, Bjørn Johan; Hansen, Olav R.; Storvik, Idar E.; Taraldset, Ole Jacob; Eckhoff, Rolf Kristian (2005)
      Conference object
    • Simulation of geomechanical effects of CO2 injection in cold aquifers with possibility of hydrate formation 

      Kvamme, Bjørn; Jemai, Khaled; Chejara, Ashok; Vafaei, Mohammad Taghi (International Conference on Gas Hydrates, 2011)
      The injection of CO2 in saline aquifers can have a significant impact on the geochemistry and the geo-mechanics of the reservoirs. Due to this injection, minerals will dissociate in regions with low pH or precipitate in ...
      Conference object
    • Simulation of hydrate dynamics in reservoirs 

      Kvamme, Bjørn; Vafaei, Mohammad Taghi; Chejara, Ashok; Jemai, Khaled (International Conference on Gas Hydrates, 2011)
      Gas hydrates in reservoirs are generally not in thermodynamic equilibrium and there may be several competing phase transitions involving hydrate. Formation of carbon dioxide hydrates during aquifer storage of carbon ...
      Conference object
    • Testing the presence of CP violation in the 2HDM 

      Grzadkowski, Bohdan; Øgreid, Odd Magne; Osland, Per (PoS - Proceedings of Science, 2015-04-27)
      We review CP properties of the Two-Higgs-Doublet model. In particular, we show that sponta- neous CP violation occurs in the parameter space on the border between regions allowing explicit CP violation and those where ...
      Conference object
    • Turbulence, Vorticity and Lambda Polarization 

      Csernai, Laszlo; Becattini, Francesco; Wang, Du-Juan (IOP Publishing, 2014)
      Present highest energy heavy ion experiments show the dominance of the fluid dynamical processes. The possibility of new collective phenomena, rotation and turbulence occurs, which were known only in macroscopic systems ...
      Conference object
    • Update on the CP-Violating Inert-Doublet Model 

      Grzadkowski, Bohdan; Øgreid, Odd Magne; Osland, Per; Pukhov, Alexander; Purmohammadi, Mahdi (The XXth International Workshop High Energy Physics and Quantum Field Theory, 2012)
      We have updated a recently proposed extension of the Inert Doublet Model. The extension amounts to the addition of an extra non-inert scalar doublet. The model thus offers a possibility of CP violation in the scalar sector ...
      Conference object