Browsing Fysisk institutt by Title

Now showing items 2271-2290 of 3667

  • The observation of vibrating pear-shapes in radon nuclei 
    Butler, P.A.; Gaffney, LP; Spagnoletti, P.; Konki, J.; Scheck, M.; Smith, J.F.; Abrahams, K.; Bowry, M.; Cederkall, J.; Chupp, T.; De Angelis, G.; De Witte, H.; Garrett, P.E.; Goldkuhle, A.; Henrich, C.; Illana, A.; Johnston, K.; Joss, D.T.; Keatings, J.M.; Kelly, N.A.; Komorowska, M.; Kröll, T.; Lozano, M.; Nara Singh, B.S.; O'Donnell, D.; Ojala, J.; Page, R.D.; Pedersen, Line Gaard; Raison, C.; Reiter, P; Rodriguez, J.A.; Rosiak, D.; Rothe, S.; Shneidman, T.M.; Siebeck, B.; Seidlitz, M.; Sinclair, J.; Stryjczyk, M.; Van Duppen, P; Vinals, S.; Virtanen, V.; Warr, N.; Wrzosek-Lipska, K; Zielinska, M. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    There is a large body of evidence that atomic nuclei can undergo octupole distortion and assume the shape of a pear. This phenomenon is important for measurements of electric-dipole moments of atoms, which would indicate ...
  • Observation of WWW production in pp collisions at √s=13 TeV with the ATLAS detector 
    Aad, Georges; Abbott, Brad; Abbott, Dale C.; Abed Abud, Adam; Abeling, Kira; Abhayasinghe, Deshan Kavishka; Abidi, Syed Haider; Aboulhorma, Asmaa; Abramowicz, Halina; Abreu, Henso; Ananiev, Viktor; Bjørke, Kristian; Bugge, Magnar Kopangen; Cameron, David Gordon; Catmore, James Richard; Gramstad, Eirik; Heggelund, Andreas; Håland, Even Simonsen; Morisbak, Vanja; Ould-Saada, Farid; Pedersen, Maiken; Read, Alexander Lincoln; Rye, Eli Bæverfjord; Røhne, Ole Myren; Sandaker, Heidi; Vadla, Knut Oddvar Høie; Buanes, Trygve; Djuvsland, Julia Isabell; Eigen, Gerald; Fomin, Nikolai; Huiberts, Simon Kristian; Latour, Bertrand Pascal Christian; Lee, Graham Richard; Lipniacka, Anna; Stugu, Bjarne Sandvik; Træet, Are Sivertsen; Abulaiti, Yiming; Abusleme Hoffman, Angel C.; Acharya, Bobby S.; Achkar, Baida; Adam, Lennart; Adam-Bourdarios, Claire; Adamczyk, Leszek; Adamek, Lukas; Addepalli, Sagar Vidya; Adelman, Jareed; Adigüzel, Aytül; Adorni, Sofia; Adye, Tim; Affolder, Anthony Allen; ATLAS, Collaboration (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    This Letter reports the observation of WWW production and a measurement of its cross section using 139  fb−1 of proton-proton collision data recorded at a center-of-mass energy of 13 TeV by the ATLAS detector at the Large ...
  • Observational Evidence for the Role of Hall Conductance in Alfvén Wave Reflection 
    Ivarsen, Magnus Fagernes; Park, Jaeheung; Kwak, Young-Sil; Jin, Yaqi; Knudsen, D. J.; Clausen, Lasse Boy Novock (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Electromagnetic energy carried by magnetohydrodynamic modes is an important mechanism in the energy transfer between the magnetosphere and the ionosphere. Alfvén waves are known to carry field‐aligned currents and thus ...
  • Observational evidence for throat aurora being associated with magnetopause reconnection 
    Han, De-Sheng; Xu, Tong; Jin, Yaqi; Oksavik, Kjellmar; Chen, Xiangcai; Liu, Jian-Jun; Zhang, Qinghe; Baddeley, Lisa; Herlingshaw, Katie (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    Throat auroras have been suggested to be related to indentations on the subsolar magnetopause. However, the indentation generation process and the resulting ionospheric responses have remained unknown. An EISCAT Svalbard ...
  • Observations of Polar Cap Patch Substructures by EISCAT Svalbard Radar 
    Bravo, Karina Ibanez (Master thesis / Masteroppgave, 2009)
    This thesis discusses substructures within convecting large-scale plasma density enhancements, known as “patches”, in the polar F-region ionosphere. Two days of high resolution EISCAT Svalbard Radar (ESR) data from both ...
  • Obtaining range measurements from ambient noise cross-correlations for the self-calibration of nodes 
    Aparicio, Joaquin; Holm, Sverre (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    The calibration of nodes in a sensor network or in a positioning system is a time-consuming process. This is especially relevant in indoor environments, where GPS signals are not available. Usually, it involves a user ...
  • OClO and BrO observations in the volcanic plume of Mt. Etna - Implications on the chemistry of chlorine and bromine species in volcanic plumes 
    Gliss, Jonas; Bobrowski, Nicole; Vogel, Leif; Platt, Ulrich (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
  • Off-momentum cleaning simulations and measurements at the Large Hadron Collider 
    Garcia Morales, Hector; Bruce, Roderik; Redaelli, Stefano; Belen, Salvachua; Wretborn, Joel; Sjobak, Kyrre Ness (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2021)
    The Large Hadron Collider is designed to collide proton beams with unprecedented energy in order to extend the frontiers of high-energy physics. Particles that have an energy different from the nominal one follow dispersive ...
  • Offset Correction for Swept Threshold Ultra-Wide-Band Sampling 
    Vele, Dino (Master thesis / Masteroppgave, 2019)
  • Olivine Grain Size Distributions in Faults and Shear Zones: Evidence for Nonsteady State Deformation 
    Aupart, Claire Olga Maryse; Dunkel, Kristina G; Angheluta, Luiza; Austrheim, Håkon Olaf; Ildefonse, Beniot; Malthe-Sørenssen, Anders; Jamtveit, Bjørn (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    The grain size distribution of deformed rocks may provide valuable information about their deformation history and the associated mechanisms. Here we present a unique set of olivine grain size distributions from ultramafic ...
  • On a configurable hardware implementation of the BCJR algorithm 
    Olsen, Terje Normann (Master thesis / Masteroppgave, 2007)
    The introduction of turbo codes in 1993 was a breakthrough in constructing error correction codes that were able to approach the theoretical limit of performance. Different implementations of turbo codes have become widely ...
  • On quantitative off-axis Scanning Transmission Ion Microscopy (STIM) 
    Whitlow, Harry James (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Spurred by a need to determine major (C, H, N and O) contents in biological tissue sections, a formalism for quantitative off-axis Scanning Transmission Ion Microscopy (OA-STIM) has been established. This can be used with, ...
  • On separate chemical freeze-outs of hadrons and light (anti)nuclei in high energy nuclear collisions 
    Bugaev, Kyrill A.; Grinyuk, Boris E.; Ivanytskyi, A.I.; Sagun, Violetta V.; Savchenko, Denis O.; Zinovjev, Gennady M.; Nikonov, Eduard G.; Bravina, Larissa; Zabrodin, Evgeny; Blaschke, David Bernhard; Kabana, S; Taranenko, Arkadiy V. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
  • On the collocation of the cusp aurora and the GPS phase scintillation: A statistical study 
    Jin, Yaqi; Moen, Jøran I.; Miloch, Wojciech J. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    The climatology map of the GPS phase scintillation identifies two regions of high scintillation occurrences: around magnetic noon and around magnetic midnight. The scintillation occurrence rate is higher around noon, while ...
  • On the Dynamics of the Autler-Townes effect 
    Seputis, Arnoldas (Master thesis / Masteroppgave, 2020)
    In this thesis the effect of Autler-Townes splitting is revisited and the dynamics of a 2- and 3-level quantum systems, exhibiting this effect, is studied. This effect is a special case of the Stark effect, where the ...
  • On the Effect of Environmental Exposure on Dwell Fatigue Performance of a Fine-Grained Nickel-Based Superalloy 
    Pedrazzini, S; Child, DJ; Aarholt, Thomas; Ball, C; Dowd, M; Girling, A; Cockings, H; Perkins, K; Hardy, MC; Stone, HJ; Bagot, PAJ (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    The influence of sulfur contamination on the corrosion-fatigue behavior of a polycrystalline superalloy used in aero-engines is considered. Samples tested under a variety of environmental conditions (including exposures ...
  • On the environment-induced decoherence in quantum devices 
    Brox, Håkon (Doctoral thesis / Doktoravhandling, 2012)
  • On the flow shear instability driven by Reversed Flow Events in the polar ionosphere 
    Stausland, Christoffer Tansem (Master thesis / Masteroppgave, 2014)
    In this thesis we have investigated the flow shears in Reversed Flow Events both with a statistical approach and case studies to gain more information about the Kelvin-Helmholtz instability arising from the shears delimiting ...
  • On the Geometry of Kaluza-Klein Theories and the Geometrical Origin of LightRestricted Access 
    Steen, Mikael Bull (Master thesis / Masteroppgave, 2014)
  • On the high-temperature oxidation of ZnSb for thermoelectric applications 
    Madathil, Reshma; Thoreton, Vincent; Prytz, Øystein; Norby, Truls Eivind (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Thermoelectric ZnSb has a native surface oxide layer of Sb2O5 +ZnO, while HT oxidation in air resulted in selective oxidation to ZnO, with no detectable Sb by STEM-EDS. The ZnO consisted of an inner nano-granular and a ...