• Cosmic Ray Signatures from Decaying Gravitino Dark Matter 

      Bomark, Nils-Erik; Lola, Smaragda; Osland, Per; Raklev, Are R. (Conference object; Journal article, 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 for ...
    • CP Violation in the scalar sector 

      Emmanuel-Costa, David; Øgreid, Odd Magne; Osland, Per; Rebelo, Margarida N. (Conference object; Peer reviewed; Journal article, 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 ...
    • Features concerning capillary pressure and the effect on two-phase and three-phase flow 

      Dale, Elisabeth Iren; Skauge, Arne (Conference object, 2008-04-30)
      The effect of capillary pressure related to immiscible WAG (Water Alternate Gas) is studied by use of a numerical simulator. The capillary pressure is found to have a significant effect on the pressure gradient and the ...
    • Flame Propagation in Dust Clouds: Challenges for Model Validation 

      Skjold, Trygve (Conference object; Peer reviewed, 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 ...
    • Fluid Flow Properties of WAG Injection Processes 

      Dale, Elisabeth Iren; Skauge, Arne (Conference object, 2008-04-30)
      Immiscible water-alternating-gas (IWAG) experiments performed on equilibrated fluids are summarised together with the corresponding two-phase gas-oil and water-oil displacements. Experimental studies at reservoir condition ...
    • 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 (IChemE Symposium Series;154, Conference object; Peer reviewed, 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 ...
    • A new algorithm for simultaneous retrieval of aerosol and marine parameters in coastal environments 

      Stamnes, Knut; Li, Wei; Fan, Y.; Hamre, Børge; Frette, Øyvind; Folkestad, Are; Sørensen, Kai; Stamnes, Jakob J. (Conference object; Peer reviewed; Journal article, 2013)
      We present simultaneous retrievals of aerosol and marine parameters in coastal areas from ocean color data using the OC-SMART algorithm, Ocean Color: Simultaneous Marine and Aerosol Retrieval Tool. OC-SMART uses a one-step ...
    • Possibilities, limitations, and the way ahead for dust explosion modelling 

      Skjold, Trygve; Larsen, Ø.; Hansen, Olav R. (IChemE Symposium Series;151, Conference object; Peer reviewed, 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 ...
    • Preliminary results of 3D-DDTC pixel detectors for the ATLAS upgrade 

      La Rosa, A; Boscardin, M; Dalla Betta, G.-F.; Darbo, G; Gemme, C; Pernegger, H; Piemonte, C; Povoli, M; Ronchin, S; Zoboli, A; Zorzi, N; Bolle, Erlend; Borri, M; Da Via, C; Dong, S; Fazio, S; Grenier, P; Grinstein, S; Gjersdal, H; Hansson, P; Huegging, F; Jackson, P; Kocian, M; Riviero, F; Røhne, Ole Myren; Sandaker, Heidi; Sjøbak, K; Slavicek, T; Tsung, W; Tsybychev, D; Wermes, N; Young, C (Conference object; Journal article, 2009)
      3D Silicon sensors fabricated at FBK-irst with the Double-side Double Type Column (DDTC) approach and columnar electrodes only partially etched through p-type substrates were tested in laboratory and in a 1.35 Tesla magnetic ...
    • Rotation and Turbulent Instability in Peripheral Heavy Ion Collisions 

      Csernai, Laszlo; Wang, Du-Juan (Conference object; Peer reviewed, 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 ...
    • Scattering from spheres and cylinders - revisited 

      Hobæk, Halvor; Nesse, Tonje Lexau (Conference object, 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 ...
    • 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. (Conference object; Peer reviewed, 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 ...
    • Simulating the Effect of Release of Pressure and Dust Lifting on Coal Dust Explosions 

      Skjold, Trygve (Conference object; Peer reviewed, 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 investigated ...
    • 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 (Conference object; Peer reviewed, 2005)
    • Simulation of geomechanical effects of CO2 injection in cold aquifers with possibility of hydrate formation 

      Kvamme, Bjørn; Jemai, Khaled; Chejara, Ashok; Vafaei, Mohammad Taghi (Conference object; Peer reviewed, 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 ...
    • Simulation of hydrate dynamics in reservoirs 

      Kvamme, Bjørn; Vafaei, Mohammad Taghi; Chejara, Ashok; Jemai, Khaled (Conference object; Peer reviewed, 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 dioxide ...
    • Testing the presence of CP violation in the 2HDM 

      Grzadkowski, Bohdan; Øgreid, Odd Magne; Osland, Per (Conference object; Peer reviewed; Journal article, 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 there ...
    • Turbulence, Vorticity and Lambda Polarization 

      Csernai, Laszlo; Becattini, Francesco; Wang, Du-Juan (Conference object; Peer reviewed, 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 ...
    • Update on the CP-Violating Inert-Doublet Model 

      Grzadkowski, Bohdan; Øgreid, Odd Magne; Osland, Per; Pukhov, Alexander; Purmohammadi, Mahdi (Conference object; Peer reviewed; Journal article, 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 ...