• Well-posedness of the fully coupled quasi-static thermo-poroelastic equations with nonlinear convective transport 

      Brun, Mats Kirkesæther; Radu, Florin Adrian; Ahmed, Elyes; Nordbotten, Jan Martin (Peer reviewed; Journal article, 2019-03)
      This paper is concerned with the analysis of the quasi-static thermo-poroelastic model. This model is nonlinear and includes thermal effects compared to the classical quasi-static poroelastic model (also known as Biot's ...
    • West Spitsbergen fold and thrust belt: A digital educational data package for teaching structural geology 

      Horota, Rafael Kenji; Senger, Kim; Rodes, Nil; Betlem, Peter; Smyrak-Sikora, Aleksandra; Jonassen, Marius Opsanger; Kramer, Daniel; Braathen, Alvar (Journal article; Peer reviewed, 2023)
      The discipline of structural geology is taking an advantage of compiling observations from multiple field sites to comprehend the bigger picture and constrain the region's geological evolution. In this study we demonstrate ...
    • Wettability effects on oil recovery mechanisms in fractured chalk 

      Aspenes, Eirik (Doctoral thesis, 2007-02-02)
      This thesis is a part of the ongoing project, “Oil recovery from fractured chalk reservoirs”, which is a collaboration between the Reservoir Physics Group at the University of Bergen and ConocoPhillips Research Center in ...
    • Wetting in Porous Media: A Nuclear Magnetic Resonance Study. 

      Sørgård, Henrik Nicolay (Doctoral thesis, 2020-06-30)
      The purpose of this thesis has been to study mechanisms responsible for wettability alteration on reservoir minerals and then to study how surface wettability affects the distribution of immiscible liquids in porous media. ...
    • Wetting of porous thin films exhibiting large contact angles 

      Helseth, Lars Egil; Greve, Martin Møller (Journal article; Peer reviewed, 2023)
      Porous solid films that promote large apparent contact angles are interesting systems since their wetting properties are dependent on both the surface structure and water penetration into the film. In this study, a ...
    • Wetting Stability of Aged Limestone in the presence of HPAM polymer 

      Sandnes, Martine Folgerø (Master thesis, 2020-06-04)
      The Norwegian Petroleum Directorate required that a polymer field pilot should be performed in the Johan Sverdrup field in the second phase of the field development to confirm potential enhanced recovery potential at the ...
    • What can selection experiments teach us about fisheries-induced evolution? 

      Diaz Pauli, Beatriz; Heino, Mikko Petteri (Peer reviewed; Journal article, 2014-03)
      There is evidence that fisheries are altering the phenotypic composition of fish populations, often in ways that may reduce the value of fish stocks for the exploiters. Despite the increasing number of theoretical and field ...
    • What Determines the Parameters of a Propagating Streamer: A Comparison of Outputs of the Streamer Parameter Model and of Hydrodynamic Simulations 

      Lehtinen, Nikolai Grigorievich; Marskar, Robert (Journal article; Peer reviewed, 2021)
      Electric streamer discharges (streamers) in the air are a very important stage of lightning, taking place before formation of the leader discharge, and with which an electric discharge starts from conducting objects which ...
    • What Is Gill Health and What Is Its Role in Marine Finfish Aquaculture in the Face of a Changing Climate? 

      Foyle, Kevin L.; Hess, Sybille; Powell, Mark; Herbert, Neill A. (Journal article; Peer reviewed, 2020)
      It is hard to find a definition of gill health in the literature although there is a lot of information on changes to gill structure as a result of infectious and non-infectious challenge. How these changes relate to overall ...
    • What Is Known About Vertex Cover Kernelization? 

      Fellows, Michael R.; Jaffke, Lars; Király, Aliz Izabella; Rosamond, Frances; Weller, Mathias (Peer reviewed; Journal article, 2018)
      We are pleased to dedicate this survey on kernelization of the Vertex Cover problem, to Professor Juraj Hromkovič on the occasion of his 60th birthday. The Vertex Cover problem is often referred to as the Drosophila of ...
    • What is natural? The importance of a long-term perspective in biodiversity conservation and management 

      Willis, Katherine Jane; Birks, Harry John Betteley (Peer reviewed; Journal article, 2006)
      Ecosystems change in response to factors such as climate variability, invasions, and wildfires. Most records used to assess such change are based on short-term ecological data or satellite imagery spanning only a few ...
    • What is quantitative plant biology? 

      Autran, Daphné; Bassel, George W.; Chae, Eunyoung; Ezer, Daphne; Ferjani, Ali; Fleck, Christian; Hamant, Olivier; Hartmann, Félix P.; Jiao, Yuling; Johnston, Iain; Kwiatkowska, Dorota; Lim, Boon L.; Mahönen, Ari Pekka; Morris, Richard J.; Mulder, Bela M.; Nakayama, Naomi; Sozzani, Ross; Strader, Lucia C.; Ten Tusscher, Kirsten; Ueda, Minako; Wolf, Sebastian (Journal article; Peer reviewed, 2021)
      Quantitative plant biology is an interdisciplinary field that builds on a long history of biomathematics and biophysics. Today, thanks to high spatiotemporal resolution tools and computational modelling, it sets a new ...
    • What is the appropriate coordinate system for magnetometer data when analyzing ionospheric currents? 

      Laundal, Karl Magnus; Gjerløv, Jesper (Peer reviewed; Journal article, 2014-10)
      In this paper we investigate which coordinate representation is most appropriate when analyzing ground magnetometer data in terms of ionospheric currents, in particular the westward electrojet. The AL and the recently ...
    • What is the flux of low energy electron precipitation in the lower thermosphere? 

      Eide, Haakon Dahl (Master thesis, 2022-06-03)
      The ionisation caused by Energetic particle precipitation (EPP) into the atmosphere, lead to chemical reactions producing NO_x (N, NO, NO_2) gases. Auroral electrons (1-30 keV) deposit their energy throughout the upper ...
    • What is the observed relationship between species richness and productivity? Comment 

      Whittaker, Robert J.; Heegaard, Einar (Journal article, 2003)
    • What we do in the dark: Prevalence of omnivorous feeding activity in Arctic zooplankton during polar night 

      Kunisch, Erin; Graeve, Martin; Gradinger, Rolf Rudolf; Flores, Hauke; Varpe, Øystein; Bluhm, Bodil (Journal article; Peer reviewed, 2023)
      During the productive polar day, zooplankton and sea-ice amphipods fulfill a critical role in energy transfer from primary producers to higher trophic-level species in Arctic marine ecosystems. Recent polar night studies ...
    • When to reproduce? A new answer to an old question 

      Skorping, Arne; Jensen, Knut Helge; Mennerat, Adele; Högstedt, Göran (Peer reviewed; Journal article, 2016-04)
      We present a life-history model based on the assumptions that juvenile survival follows a negative exponential function and that fecundity gain increases linearly with time to maturity. This model predicts that the optimal ...
    • The Whitham Equation as a model for surface water waves 

      Moldabayev, Daulet; Kalisch, Henrik; Dutykh, Denys (Peer reviewed; Journal article, 2015-08)
      The Whitham equation was proposed as an alternate model equation for the simplified description of uni-directional wave motion at the surface of an inviscid fluid. As the Whitham equation incorporates the full linear ...
    • Who benefits from postponement in multi-period supply channel optimization? 

      Azad Gholami, Reza; Sandal, Leif Kristoffer; Ubøe, Jan (Journal article; Peer reviewed, 2024)
      Duopolistic price-setting supply channels competing in a bilevel framework have been extensively studied in single-period (static) settings. However, such supply channels typically face uncertain and time-varying demand; ...
    • Whole genome resequencing reveals diagnostic markers for investigating global migration and hybridization between minke whale species 

      Malde, Ketil; Seliussen, Bjørghild Breistein; Sanchez, Maria Quintela; Dahle, Geir; Besnier, Francois; Skaug, Hans J.; Øien, Nils Inge; Solvang, Hiroko Kato; Haug, Tore; Skern-Mauritzen, Rasmus; Kanda, Naohisa; Pastene, Luis A.; Jonassen, Inge; Glover, Kevin (Peer reviewed; Journal article, 2017-01-13)
      Background: In the marine environment, where there are few absolute physical barriers, contemporary contact between previously isolated species can occur across great distances, and in some cases, may be inter-oceanic. An ...