Blar i Department of Physics and Technology på tittel

Viser treff 1552-1571 av 2104

    • Rotation and Polarization in Heavy Ion Collisions 

      Xie, Yilong (Doctoral thesis, 2017-12-19)

    • Rotation and Turbulence in Peripheral Heavy Ion Collisions 

      Wang, Du-Juan (Doctoral thesis, 2014-12-16)
      In our computational fluid dynamics (CFD) calculations the Kelvin-Helmholtz instability (KHI) starts to develop in peripheral collisions. At high energies the shear viscosity of the Quark Gluon Plasma (QGP) flow is becoming ...

    • Rotation and Turbulent Instability in Peripheral Heavy Ion Collisions 

      Csernai, Laszlo; Wang, Du-Juan (Journal article; 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 ...

    • Rotation in an exact hydrodynamical model 

      Csernai, Laszlo; Wang, Du-Juan; Csörgo, T. (Peer reviewed; Journal article, 2014-08-01)
      We study an exact and extended solution of the fluid dynamical model of heavy ion reactions and estimate the rate of slowing down of the rotation due to the longitudinal and transverse expansion of the system. The initial ...

    • Rydberg Atoms in THz Fields 

      Rørstad, Jørgen Johansen (Master thesis, 2015-11-17)
      Rydberg atoms are highly excited atoms with bizarre and exotic properties such as huge orbits and exaggerated sensitivity to fields. In this study we examine these atoms using classical methods. We present the classical ...

    • S3-inspired three-Higgs-doublet models: A class with a complex vacuum 

      Kuncinas, Anton; Osland, Per; Øgreid, Odd Magne; Rebelo, Margarida N. (Journal article; Peer reviewed, 2020)
      In this paper we analyze in detail an S3-symmetric three-Higgs-doublet model with a specific vacuum configuration. This analysis allows us to illustrate important features of models with several Higgs doublets, such as the ...

    • En sammenligning av NMRL-data og konvensjonelle loggemetoder fra Trollfeltet 

      Ilnicka, Agnieszka (Master thesis, 2009-04-27)
      Logger kan grupperes etter hvilke ønskede reservoarparametrene disse registrerer. Loggemetoder undersøkt i denne oppgaven kan deles inn i tre kategorier: o Litologiske logger: Gammaloggen o Porøsitetslogger: Tetthetsloggen ...

    • Sammenligning av spredningsmodellering med kodene PHAST og FLACS, for “tyngre en luft” gassjeter med horisontalt sammenstøt, og valideringssimuleringer av MUST forsøkene. 

      Lindtner, Aksel (Master thesis, 2011-01-20)
      Denne rapporten er et arbeid som sammenligner to dataverktøy, PHAST og FLACS vedrørende ulike spredningsscenarier for fluider, først og fremst tung-gassutslipp. Det er utført en rekke simuleringer som ligger til grunn for ...

    • Scaffolding open inquiry: How a teacher provides students with structure and space 

      Bjønness, Birgitte; Kolstø, Stein Dankert (Peer reviewed; Journal article, 2015)
      The present case study examines a teacher’s scaffolding strategies supporting his students during a twelve-week open inquiry project at an upper secondary school. We use interaction analysis to identify how he provides ...

    • Scale size-dependent characteristics of the magnetosphere-ionosphere system using auroral imaging 

      Humberset, Beate Krøvel (Doctoral thesis, 2017-10-06)
      The spectacular and breathtaking aurora dancing around on the night sky visualizes the fundamental behavior of complex processes in the near Earth space. The plethora of papers published over the last five decades have ...

    • Scale size-dependent characteristics of the nightside aurora 

      Humberset, Beate Krøvel; Gjerløv, Jesper; Samara, Marilla; Michell, Robert (Peer reviewed; Journal article, 2017-02)
      We have determined the spatiotemporal characteristics of the magnetosphere-ionosphere (M-I) coupling using auroral imaging. Observations at fixed positions for an extended period of time are provided by a ground-based ...

    • Scattering from spheres and cylinders - revisited 

      Hobæk, Halvor; Nesse, Tonje Lexau (Chapter, 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 ...

    • Scattering studies with low-energy kaon-proton femtoscopy in proton-proton collisions at the LHC 

      Acharya, Shreyasi; Adamová, Dagmar; Adhya, Souvik Priyam; Adler, Clemens; Adolfsson, Jonatan; Aggarwal, Madan M.; Aglieri Rinella, Gianluca; Agnello, Michelangelo; Agrawal, Nikita; Ahammed, Zubayer; Alme, Johan; Altenkaemper, Lucas; Djuvsland, Øystein; Ersdal, Magnus Rentsch; Fionda, Fiorella Maria Celeste; Grøttvik, Ola Slettevoll; Lofnes, Ingrid Mckibben; Nystrand, Joakim; Rehman, Attiq ur; Røhrich, Dieter; Tambave, Ganesh Jagannath; Ullaland, Kjetil; Wagner, Boris; Yang, Shiming; Yuan, Shiming; Zhou, Zhuo; Arsene, Ionut Cristian; Bätzing, Paul Christoph; Dordic, Olja; Lardeux, Antoine Xavier; Lindal, Svein; Mahmood, Sohail Musa; Malik, Qasim Waheed; Richter, Matthias; Røed, Ketil; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Zhao, Chengxin; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Nesbø, Simon Voigt; Storetvedt, Maksim Melnik; Langøy, Rune; Lien, Jørgen André; Ahmad, Shafiq F.; Ahn, Sang Un; Aiola, Salvatore; Akindinov, Alexander; ALICE, Collaboration (Journal article; Peer reviewed, 2020)
      The study of the strength and behavior of the antikaon-nucleon (¯KN) interaction constitutes one of the key focuses of the strangeness sector in low-energy quantum chromodynamics (QCD). In this Letter a unique high-precision ...

    • Scenario based analysis of fire escalation in a gas process plant 

      Bjørge, Joachim Søreng (Master thesis, 2013-05-28)
      This study takes place on a medium sized gas process plant called reference plant. In this thesis several escalation scenarios, as well as gas dispersion, is evaluated through Kameleon KFX and Vessfire. It has previously ...

    • Schrödinger formulation of the nondipole light-matter interaction consistent with relativity 

      Førre, Morten; Selstø, Sølve (Journal article; Peer reviewed, 2020)
      An alternative and powerful Schrödinger-like equation for describing beyond dipole laser-matter interactions and leading relativistic corrections is derived. It is shown that this particular formulation is numerically very ...

    • The science case for the EISCAT_3D radar 

      McCrea, Ian W.; Aikio, Anita; Alfonsi, Lucilla; Belova, Evgenia; Buchert, Stephan C.; Clilverd, Mark; Engler, Norbert; Gustavsson, Björn Johan; Heinselman, C.; Kero, Johan; Kosch, Mike; Lamy, Herve; Leyser, Thomas; Ogawa, Yasunobu; Oksavik, Kjellmar; Pellinen-Wannberg, Asta; Pitout, Frederic; Rapp, Markus; Stanislawska, Iwona; Vierinen, Juha (Peer reviewed; Journal article, 2015-07-29)
      The EISCAT (European Incoherent SCATer) Scientific Association has provided versatile incoherent scatter (IS) radar facilities on the mainland of northern Scandinavia (the EISCAT UHF and VHF radar systems) and on Svalbard ...

    • Scintillation and irregularities from the nightside part of a Sun-aligned polar cap arc 

      van der Meeren, Christer; Oksavik, Kjellmar; Lorentzen, Dag Arne; Paxton, Larry J.; Clausen, Lasse Boy Novock (Peer reviewed; Journal article, 2016-06-18)
      In this paper we study the presence of irregularities and scintillation in relation to the nightside part of a long-lived, Sun-aligned transpolar arc on 15 January 2015. The arc was observed in DMSP UV and particle data ...

    • Scintillation and loss of signal lock from poleward moving auroral forms in the cusp ionosphere 

      Oksavik, Kjellmar; van der Meeren, Christer; Lorentzen, Dag Arne; Baddeley, Lisa; Moen, Jøran Idar (Journal article, 2015-10-27)
      We present two examples from the cusp ionosphere over Svalbard, where poleward moving auroral forms (PMAFs) are causing significant phase scintillation in signals from navigation satellites. The data were obtained using a ...

    • Search for a common baryon source in high-multiplicity pp collisions at the LHC 

      Acharya, Shreyasi; Adamová, Dagmar; Adler, Alexander; Adolfsson, Jonatan; Aggarwal, Madan M.; Aglieri Rinella, Gianluca; Agnello, Michelangelo; Agrawal, Nikita; Ahammed, Zubayer; Ahmad, Shafiq F.; Alme, Johan; Altenkaemper, Lucas; Djuvsland, Øystein; Eikeland, Viljar Nilsen; Ersdal, Magnus Rentsch; Fionda, Fiorella Maria Celeste; Grøttvik, Ola Slettevoll; Lofnes, Ingrid Mckibben; Nystrand, Joakim; Rehman, Attiq Ur; Røhrich, Dieter; Tambave, Ganesh Jagannath; Ullaland, Kjetil; Wagner, Boris; Yang, Shiming; Yuan, Shiming; Zhou, Zhuo; Arsene, Ionut Cristian; Dordic, Olja; Lardeux, Antoine Xavier; Mahmood, Sohail Musa; Malik, Qasim Waheed; Neagu, Alexandra; Richter, Matthias; Røed, Ketil; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Nesbø, Simon Voigt; Storetvedt, Maksim Melnik; Langøy, Rune; Lien, Jørgen André; Ahn, Sang Un; Akbar, Zaenai; Akindinov, Alexander; Al-Turany, Mohammed; Alam, Sk Noor; ALICE, Collaboration (Journal article; Peer reviewed, 2020)
      We report on the measurement of the size of the particle-emitting source from two-baryon correlations with ALICE in high-multiplicity pp collisions at √s = 13 TeV. The source radius is studied with low relative momentum ...

    • Search for a dark leptophilic scalar in e+e- collisions 

      Lees, Jean-Pierre; Poireau, Vincent; Tisserand, Vincent; Grauges, Eugeni; Palano, Antimo; Eigen, Gerald; Brown, David Nathan; Kolomensky, Yury G.; Fritsch, Miriam; Koch, Helmut; Schroeder, Torsten; Cheaib, Racha; Hearty, Christopher; Mattison, Tom S.; McKenna, Janis A.; So, Rocky Y.; Blinov, Vladimir E.; Buzykaev, Alexey; Druzhinin, Vladimir P.; Golubev, Vladimir B.; Kozyrev, Evgeny A.; Kravchenko, Evgeniy A.; Onuchin, Alexei P.; Serednyakov, Sergey I.; Skovpen, Yuri I.; Solodov, Evgeni Petrovich; Todyshev, Korneliy Yu.; Lankford, Andrew J.; Dey, Biplab; Gary, J. William; Long, Owen; Eisner, Alan M.; Lockman, William S.; Panduro-Vazquez, William; Chao, Daniel S.; Cheng, Chih-Hsiang; Echenard, Bertrand; Flood, Kevin T.; Hitlin, David G.; Kim, Jae; Lee, Myeongjae; Miyashita, Tomonari S.; Ongmongkolkul, Piti; Oyang, James; Porter, Frank C.; Röhrken, Markus; Huard, Zachary; Meadows, Brian T.; Pushpawela, Buddhi G.; Sokoloff, Michael D.; Sun, Liang; BABAR, Collaboration (Journal article; Peer reviewed, 2020-10-28)
      Many scenarios of physics beyond the standard model predict the existence of new gauge singlets, which might be substantially lighter than the weak scale. The experimental constraints on additional scalars with masses in ...