Now showing items 350-369 of 697

    • The kinetics of lactate production and removal during whole-body exercise 

      Moxnes, John Fredrik; Sandbakk, Øyvind (2012-03-13)
      Background Based on a literature review, the current study aimed to construct mathematical models of lactate production and removal in both muscles and blood during steady state and at varying intensities during whole-body ...
    • L-alanine-induced germination in Bacillus licheniformis -the impact of native gerA sequences 

      Madslien, Elisabeth Henie; Granum, Per Einar; Blatny, Janet Martha; Lindback, Toril (2014)
      Background L-alanine, acting through the GerA receptor, was recently found to be an efficient germinant in Bacillus licheniformis ATCC14580/DSM13. Results In this study, we show that several of 46 examined B. ...
    • Laboratory analysis of CBRN-substances: Stakeholder networks as clue to higher CBRN resilience in Europe 

      Plamboeck, Agneta Hånell; Stöven, Svenja; Davidson, Raquel Duarte; Fykse, Else-Marie; Griffiths, Mark D.; Nieuwenhuizen, Maarten; Rivier, Cédric; van der Schans, Marcel (2016)
      The threat of terrorists using CBRN agents continues to pose a risk of mass casualties and severe disruption of societal functions in Europe. Standardisation of crisis management activities is one important step towards ...
    • Lack of behavioural responses of humpback whales (Megaptera novaeangliae) indicate limited effectiveness of sonar mitigation 

      Wensveen, Paul; Kvadsheim, Petter Helgevold; Lam, Frans-Peter A.; vonBenda-Beckmann, Sander; Sivle, Lise Doksæter; Visser, Fleur; Cure, Charlotte; Tyack, Peter L.; Miller, Patrick James O'Malley (2017)
      Exposure to underwater sound can cause permanent hearing loss and other physiological effects in marine animals. To reduce this risk, naval sonars are sometimes gradually increased in intensity at the start of transmission ...
    • Laminar burning velocity of gases vented from failed Li-ion batteries 

      Henriksen, Mathias; Vaagsaether, K.; Lundberg, Joachim; Forseth, Sissel; Bjerketvedt, D. (2021-06-10)
      In the last decade, several fires and explosions caused by Li-ion batteries (LIBs) have been reported. This can be attributed to the thermal runaway and catastrophic failures of LIBs that release combustible gases, which ...
    • Laminar burning velocity of the dimethyl carbonate–air mixture formed by the Li-ion electrolyte solvent 

      Henriksen, Mathias; Vågsæther, Knut; Gaathaug, Andre Vagner; Lundberg, Joachim; Forseth, Sissel; Bjerketvedt, Dag (2020-08-21)
      If a Li-ion cell fails and the electrolyte leaks out into air, a flammable premixed gas cloud can be formed. The electrolyte combustion energy is 65–70% of the total energy content of the cell. The main objective of this ...
    • Large scale MALDI-TOF MS based taxa identification to identify novel pigment producers in a marine bacterial culture collection 

      Stafsnes, Marit Hallvardsd; Dybwad, Marius; Brunsvik, Anders; Bruheim, Per (2013)
      A challenge in the rational exploitation of microbial culture collections is to avoid superfluous testing of replicas. MALDI-TOF MS has been shown to be an efficient dereplication tool as it can be used to discriminate ...
    • Large-eddy simulation of dense gas dispersion over a simplified urban area 

      Wingstedt, Emma My Maria; Osnes, Andreas Nygård; Åkervik, Espen; Eriksson, Daniel; Reif, Bjørn Anders Pettersson (2017)
      Dispersion of neutral and dense gas over a simplified urban area, comprising four cubes, has been investigated by the means of large-eddy simulations (LES). The results have been compared to wind tunnel experiments and ...
    • Large-eddy simulations of dense-gas dispersion within a high-Reynolds number turbulent boundary layer 

      Wingstedt, Emma My Maria; Vartdal, Magnus; Reif, Bjørn Anders Pettersson (2017)
      Large-eddy simulations of flows over a backward-facing step with release of four different gases with increasing densities have been performed. The results have been analysed with particular emphasis on the part of the ...
    • Laser beam propagation through turbulence and adaptive optics for beam delivery improvement 

      Nicolas, Stephane (2015-10-08)
      We report results from numerical simulations of laser beam propagation through atmospheric turbulence. In particular, we study the statistical variations of the fractional beam energy hitting inside an optical aperture ...
    • Leakage rate of the nerve agent tabun from sea-dumped munition 

      Tørnes, John Aasulf; Vik, Thomas; Kjellstrøm, Tomas Tungen (2020-10)
      The leakage rate of nerve agents from corroded munition on the sea floor has been estimated by using table sugar as a simulant for the nerve agent tabun. Laboratory experiments were conducted with a full-size model of a ...
    • Legionella and non-Legionella bacteria in a biological treatment plant 

      Fykse, Else-Marie; Aarskaug, Tone; Thrane, Ingjerd; Blatny, Janet Martha (2013)
      Legionella pneumophila were previously identified in the aeration ponds (up to 1010 CFU/L) of a biological wastewater treatment plant at Borregaard Ind. Ltd., Sarpsborg, Norway, and in air samples (up to 3300 CFU/m3) ...
    • Lifetime distributions from tracking individual BC3H1 cells subjected to yessotoxin 

      Korsnes, Monica Suarez; Korsnes, Reinert (2015)
      This work shows examples of lifetime distributions for individual BC3H1 cells after start of exposure to the marine toxin yessotoxin (YTX) in an experimental dish. The present tracking of many single cells from time-lapse ...
    • Linear motion of multiple superposed viscous fluids 

      Vartdal, Magnus; Osnes, Andreas Nygård (2019-04-16)
      In this paper the small-amplitude motion of multiple superposed viscous fluids is studied as a linearized initial-value problem. The analysis results in a closed set of equations for the Laplace transformed amplitudes of ...
    • Localized mesosphere-stratosphere-troposphere radar echoes from the E region at 69 degrees N: Properties and physical mechanisms 

      Rapp, Markus; Leitert, Lasse; Latteck, Ralph; Zecha, Marius; Hoffmann, Peter; Höffner, Josef; Hoppe, Ulf-Peter; La Hoz, Cesar; Thrane, Eivind (2011)
      We present the first observations, to our knowledge, of a new class of high-latitude mesosphere-stratosphere-troposphere radar echoes from the E region as observed with the Arctic Lidar Observatory for Middle Atmosphere ...
    • A logical characterisation of SPARQL federation 

      Stolpe, Audun (2014)
      The paper provides a logical characterisation of distributed processing of SPARQL queries. The principal notion analysed is that of a distribution scheme; a pair consisting of an evaluation rule and a distribution function. ...
    • Long-range tropospheric transport of uranium and plutonium weapons fallout from Semipalatinsk nuclear test site to Norway 

      Wendel, Cato; Fifield, L. Keith; Oughton, Deborah Helen; Lind, Ole Christian; Skipperud, Lindis; Bartnicki, Jerzy; Tims, S.; Høibråten, Steinar; Salbu, Brit (2013)
      A combination of state-of-the-art isotopic fingerprinting techniques and atmospheric transport modelling using real-time historical meteorological data has been used to demonstrate direct tropospheric transport of radioactive ...
    • A LoRa Mesh Network Asset Tracking Prototype 

      Andersen, Emil; Blaalid, Thomas; Engstad, Hans; Røkenes, Sigve; Johnsen, Frank T. (2020)
      Long Range (LoRa) is a low powered wide area communications technology, which uses radio frequencies in the industrial, scientific and medical (ISM) band to transmit data over long distances. Due to these properties, i.e., ...
    • Low-Complexity Adaptive Sonar Imaging 

      Buskenes, Jo Inge; Hansen, Roy Edgar; Austeng, Andreas (2016)
      We have studied the low-complexity adaptive (LCA) beamformer in active sonar imaging. LCA can be viewed as either a simplification of the minimum variance distortionless response (MVDR) beamformer, or as an adaptive extension ...
    • Low-energy enhancement of nuclear γ strength and its impact on astrophysical reaction rates 

      Larsen, Ann-Cecilie; Blasi, Nives; Bracco, Angela; Bürger, Arnold; Camera, Franco; Eriksen, Tomas Kvalheim; Giacoppo, Francesca; Goriely, Stephan; Guttormsen, Magne Sveen; Görgen, Andreas; Hagen, Trine Wiborg; Harissopulos, Sotirios; Koehler, Paul Edward; Leoni, Silvia; Million, Bénédicte; Nyhus, Hilde-Therese; Renstrøm, Therese; Rose, Sunniva Johanne; Ruud, Inger Eli; Schiller, Andreas Ulrich; Siem, Sunniva; Tornyi, Tamas Gabor; Tveten, Gry Merete; Voinov, Alexander; Wiedeking, Mathis (2014)
      An unexpected enhancement in the low-energy part of the γ-strength function for light and medium-mass nuclei has been discovered at the Oslo Cyclotron Laboratory. This enhancement could lead to an increase in the neutron-capture ...