Now showing items 521-540 of 2078

    • f0(980) resonance production in pp collisions with the ALICE detector at the LHC 

      Lorenzo, Alessandra; Acharya, Shreyasi; Acosta, Fernando T.; Adamová, Dagmar; Adolfsson, Jonatan; Aggarwal, Madan M.; Aglieri Rinella, Gianluca; Agnello, Michelangelo; Agrawal, Neelima; Ahammed, Zubayer; Alme, Johan; Altenkaemper, Lucas; Djuvsland, Øystein; Ersdal, Magnus Rentsch; Fionda, Fiorella Maria Celeste; Nystrand, Joakim; Rehman, Attiq Ur; Røhrich, Dieter; Tambave, Ganesh Jagannath; Ullaland, Kjetil; Wagner, Boris; 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; Ahn, Sang Un; Aiola, Salvatore; Akindinov, Alexander; Al-Turany, Mohammad; Alam, Sk Noor; Albuquerque, D. S. D.; Aleksandrov, Dmitry; Alessandro, Bruno; ALICE, Collaboration (Peer reviewed; Journal article, 2019)
      We report on a preliminary study of the production of f0(980) → π+π− at mid-rapidity (|y| < 0.5) performed with the ALICE detector at the LHC in minimum bias pp collisions at the centre-of-mass energy √ s = 5.02 TeV. The ...
    • Faglege samtalar mellom elevar under nokre elevøvingar i naturfag: Nokre prosesskjenneteikn 

      Høylo, Arnt-Inge (Master thesis, 2016-06-01)
      This study has dealt with conversations in the classroom connected to practical work in science. It has been looked at conversations where teacher is with and where teacher is not included. The aim of the task was to look ...
    • Fast Mie calculations with a radial basis function neural network 

      Stremme, Michael Jonas (Master thesis, 2019-02-22)
      Scattering phenomena have been of great interest and driving scientific advancement for centuries. Mie theory outlines a precise way to compute the scattering by spherical particles. However, the computational labor involved ...
    • Fast resolution change in neutral helium atom microscopy 

      Flatabø, Ranveig; Eder, Sabrina Daniela; Ravn, Anders K; Samelin, Bjørn; Greve, Martin Møller; Reisinger, Thomas; Holst, Bodil (Peer reviewed; Journal article, 2018)
      In neutral helium atom microscopy, a beam of atoms is scanned across a surface. Though still in its infancy, neutral helium microscopy has seen a rapid development over the last few years. The inertness and low energy of ...
    • Features concerning capillary pressure and the effect on two-phase and three-phase flow 

      Dale, Elisabeth Iren; Skauge, Arne (Chapter, 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 ...
    • Femtosecond Single Cycle Pulses Enhanced the Efficiency of High Order Harmonic Generation 

      Taoutioui, Abdelmalek; Agueny, Hicham (Journal article; Peer reviewed, 2021)
      High-order harmonic generation is a nonlinear process that converts the gained energy during light-matter interaction into high-frequency radiation, thus resulting in the generation of coherent attosecond pulses in the XUV ...
    • Femtosecond-pulse-train ionization of Rydberg wave packets 

      Simonsen, Sigrid Ina; Sørngård, Stian Astad; Førre, Morten; Hansen, Jan Petter (Peer reviewed; Journal article, 2012-10-09)
      We calculate, based on first-order perturbation theory, the total and differential ionization probabilities from a dynamic periodic Rydberg wave packet of a given n-shell exposed to a train of femtosecond laser pulses. The ...
    • Fibres in Heritage Objects : Identification and Characterisation by Imaging Techniques 

      Lukesova, Hana (Doctoral thesis, 2021-08-27)
      The work presented in this thesis focuses on the identification and characterisation of plant fibres from cultural heritage objects. The main emphasis is on method development (Archaeometry) in the field of optical microscopy. ...
    • Fiducial and differential cross sections of Higgs boson production measured in the four-lepton decay channel in \(\boldsymbol{pp}\) collisions at \(\boldsymbol{\sqrt{s}}\) = 8 TeV with the ATLAS detector 

      Aad, Georges; Abbott, Brad; Abdallah, Jalal; Abdel Khalek, Samah; Abdinov, Ovsat Bahram oglu; Aben, Rosemarie; Abi, Babak; Abolins, Maris; AbouZeid, Hass; Abramowicz, Halina; Buanes, Trygve; Dale, Ørjan; Eigen, Gerald; Kastanas, Alex; Liebig, Wolfgang; Lipniacka, Anna; Martin dit Latour, Bertrand; Rosendahl, Peter Lundgaard; Sandaker, Heidi; Sjursen, Therese B.; Smestad, Lillian; Stugu, Bjarne; Ugland, Maren; Bugge, Lars; Bugge, Magnar Kopangen; Cameron, David Gordon; Catmore, James Richard; Czyczula, Zofia; Franconi, Laura; Gjelsten, Børge Kile; Gramstad, Eirik; Ould-Saada, Farid; Pajchel, Katarina; Pedersen, Maiken; Read, Alexander Lincoln; Røhne, Ole Myren; Stapnes, Steinar; Strandlie, Are; Abreu, Henso; Abreu, Rômulo F.; Adamczyk, Leszek; Adams, David; Adelman, Jareed; Adomeit, Stefanie; Adye, Tim; Agatonovic-Jovin, Tatjana; Aguilar Saavedra, Juan Antonio; Åkerstedt, Henrik; Åkesson, Torsten P.A.; Åsman, Barbro; ATLAS, Collaboration (Peer reviewed; Journal article, 2014-11-10)
      Measurements of fiducial and differential cross sections of Higgs boson production in the \({H \rightarrow ZZ ^{*}\rightarrow 4\ell}\) decay channel are presented. The cross sections are determined within a fiducial phase ...
    • Field Pilot Injection Strategies for CO2 Foam EOR in a Layered Heterogeneous Carbonate Reservoir 

      Kristiansen, Stine Marie (Master thesis, 2018-06-20)
      Injection of CO2 foam for enhanced oil recovery (EOR) may provide economic incentives for large-scale industrial CO2 storage. An international field pilot research program has been initiated to develop and test CO2 foam ...
    • Field-Aligned and Ionospheric Currents by AMPERE and SuperMAG During HSS/SIR-Driven Storms 

      Pedersen, M.N.; Vanhamäki, H.; Aikio, A.T.; Käki, S.; Workayehu, A.B.; Waters, C.L.; Gjerløv, Jesper (Journal article; Peer reviewed, 2021)
      This study considers 28 geomagnetic storms with Dst $\leq-50$ nT driven by high-speed streams (HSSs) and associated stream interaction regions (SIRs) during 2010-2017. Their impact on ionospheric horizontal and field-aligned ...
    • Fighting dust explosion hazards in the process industries 

      Eckhoff, Rolf Kristian (Journal article; Peer reviewed, 2020)
    • Finite element modeling of ultrasound measurement systems for gas. Comparison with experiments in air. 

      Hauge, Rune (Master thesis, 2013-06-10)
      A finite element based system model of an ultrasonic measurement system in air is developed. Simulations and experiments in air are compared.
    • Finite-Amplitude Power Budget Equations for Acoustic Fish Abundance Estimation 

      Lunde, Per (Journal article; Peer reviewed, 2020)
      Finiteamplitude (nonlinear) sound propagation effects in seawater may cause measurement errors in fish and zooplankton abundance estimation and species identification for accessible echo sounder transmit electrical power ...
    • Finite-amplitude sound propagation effects in volume backscattering measurements for fish abundance estimation 

      Pedersen, Audun Oppedal; Lunde, Per; Tichy, Frank; Korneliussen, Rolf (Journal article; Peer reviewed, 2022)
      Scientific advice for governmental management of marine resources relies on acoustical observation methods. Quantification and identification of fish and plankton species are often achieved using multi-frequency acoustic ...
    • Fire Protection of Industrial Process Equipment 

      Bjørge, Joachim Søreng (Doctoral thesis, 2019-12-09)
      Active and passive measures are two main branches in Fire Protection Engineering (FPE). The present thesis, entitled “Fire Protection of Industrial Process Equipment”, studies parts of these topics: 1. A study of the cooling ...
    • First 10 Months of TGF Observations by ASIM 

      Østgaard, Nikolai; Neubert, Torsten; Reglero, Victor; Ullaland, Kjetil; Yang, Shiming; Genov, Georgi; Marisaldi, Martino; Mezentsev, Andrey; Kochkin, Pavlo; Lehtinen, Nikolai; Sarria, David; Qureshi, Bilal Hasan; Solberg, Arne Olav; Maiorana, Carolina; Albrechtsen, Kjetil; Budtz-Jørgensen, Carl; Kuvvetli, Irfan; Christiansen, Freddy; Chanrion, Olivier; Heumesser, Matthias; Navarro-Gonzalez, Javier; Connell, Paul H.; Eyles, Christopher J; Christian, Hugh J.; Al-Nussirat, Samer (Peer reviewed; Journal article, 2019)
      The Atmosphere‐Space Interactions Monitor (ASIM) was launched to the International Space Station on 2 April 2018. The ASIM payload consists of two main instruments, the Modular X‐ray and Gamma‐ray Sensor (MXGS) for imaging ...
    • First and second-order models for the vortex length in cylinder-on-cone cyclones based on large-eddy simulations 

      Svensen, Ellinor Arguilla; Hoffmann, Alex Christian (Peer reviewed; Journal article, 2020)
      The common design of cyclone separators is the cylinder–on–cone design, and the conical shape has a strong effect on the behavior of the vortex core low in the cyclone. The “vortex length” is the distance between the lip ...
    • First experimental evidence of hop fibres in historical textiles 

      Skoglund, Git; Holst, Bodil; Lukesova, Hana (Journal article; Peer reviewed, 2020)
      Hop (Humulus lupulus) has been used in Scandinavia since at least the ninth century AD, as documented through archaeological findings and written, historical records. The written records are mainly focused on the use of ...
    • First irradiation test results of the ALICE SAMPA ASIC 

      Mahmood, Sohail Musa; Røed, Ketil; Velure, Arild; Winje, Fredrik (Peer reviewed; Journal article, 2018)
      With the continuous scaling of the CMOS technology, the CMOS circuits are considered to be more tolerant to Single event Latchup (SEL) effects due to the reduction in the supply voltages. This paper reports the results ...