Now showing items 1-20 of 837

  • A 3D computational study of effective medium methods applied to fractured media 

    Sævik, Pål Næverlid; Berre, Inga; Jakobsen, Morten; Lien, Martha (Springer, 2013-10)
    This work evaluates and improves upon existing effective medium methods for permeability upscaling in fractured media. Specifically, we are concerned with the asymmetric self-consistent, symmetric self-consistent, and ...
    Journal article
  • Acacia trees on the cultural landscapes of the Red Sea Hills 

    Hobbs, Joseph J.; Krzywinski, Knut; Andersen, Gidske Leknæs; Talib, Mohamed; Pierce, Richard H.; Saadallah, Ahmed Ebaid Mohamed (Springer, 2014-07-18)
    This paper examines interactions between five pastoral nomadic culture groups of the Egyptian and Sudanese Red Sea Hills and the acacia trees Acacia tortilis (Forssk.) Hayne subsp. tortilis and subsp. raddiana growing in ...
    Journal article
  • Acoustic Methods for Obtaining the Pressure Reflection Coefficient from a Buffer Rod Based Measurement Cell 

    Bjørndal, Erlend; Frøysa, Kjell-Eivind (IEEE, 2008-08-08)
    The known acoustic methods for obtaining the pressure reflection coefficient from a buffer rod based measurement cell are presented, along with 2 new generic approaches for measuring the pressure reflection coefficient ...
    Journal articlePeer reviewed
  • Active and integrated management of water resources throughout CO2 capture and sequestration operations 

    Court, Benjamin; Celia, Michael A.; Nordbotten, Jan Martin; Elliot, Thomas R. (Elsevier, 2011)
    Most projected climate change mitigation strategies will require a significant expansion of CO2 Capture and Sequestration (CCS) in the next two decades. Four major categories of challenges are being actively researched: ...
    Journal article
  • Advances in herring biology: from simple to complex, coping with plasticity and adaptability 

    Geffen, Audrey J. (Oxford Journals, 2009)
    At least two centuries of investigations on herring have been absorbed by scientific journals, and applied and fundamental research has produced groundbreaking concepts in fisheries, population biology, and marine ecology. ...
    Journal articlePeer reviewed
  • The ALICE TPC, a large 3-dimensional tracking device with fast readout for ultra-high multiplicity events 

    Alme, Johan; Andres, Y; Appelshauser, H; Bablok, Sebastian Robert; Bialas, N; Bølgen, Rikard; Bonnes, U; Bramm, R; Braun-Munzinger, P; Campagnolo, R; Christiansen, P; Dobrin, A; Engster, C; Fehlker, Dominik; Foka, Y; Frankenfeld, U; Gaardhoje, JJ; Garabatos, C; Glassel, P; Gutierrez, CG; Gros, P; Gustafsson, HA; Helstrup, Håvard; Hoch, M; Ivanov, M; Janik, R; Junique, A; Kalweit, A; Keidel, R; Kniege, S; Kowalski, M; Larsen, Dag Toppe; Lesenechal, Y; Lenoir, P; Lindegaard, N; Lippmann, C; Mager, M; Mast, M; Matyja, A; Munkejord, Magne; Musa, L; Nielsen, BS; Nikolic, V; Oeschler, H; Olsen, EK; Oskarsson, A; Osterman, L; Pikna, M; Rehman, A; Renault, G; Renfordt, R; Rossegger, S; Røhrich, Dieter; Røed, Ketil; Richter, Matthias; Rueshmann, G; Rybicki, A; Sann, H; Schmidt, HR; Siska, M; Sitar, B; Soegaard, C; Soltveit, HK; Soyk, D; Stachel, J; Stelzer, H; Stenlund, E; Stock, R; Strmen, P; Szarka, I; Ullaland, Kjetil; Vranic, D; Veenhof, R; Westergaard, J; Wiechula, J; Windelband, B (Elsevier, 2010-10-01)
    The design, construction, and commissioning of the ALICE Time-Projection Chamber (TPC) is described. It is the main device for pattern recognition, tracking, and identification of charged particles in the ALICE experiment ...
    Journal article
  • An altitude and distance correction to the initial fluence distribution of TGFs 

    Nisi, Ragnhild Schrøder; Østgaard, Nikolai; Gjesteland, Thomas; Collier, Andrew B. (Wiley, 2014-10)
    The source fluence distribution of terrestrial gamma ray flashes (TGFs) has been extensively discussed in recent years, but few have considered how the TGF fluence distribution at the source, as estimated from satellite ...
    Journal article
  • Analysing estimators in the alternative echo integrator method 

    Aksland, Magnar (Bentham Open, 2010)
    Abstract: New and existing estimators of the “Echo Value Constant” based on split-beam detected and integrated single target echoes in the “alternative echo integration method” have been compared by using acoustic data. ...
    Peer reviewedJournal article
  • Analysis of a low-level coastal jet off the western coast of Norway 

    Christakos, Konstantinos; Varlas, Georgios; Reuder, Joachim; Katsafados, Petros; Papadopoulos, Anastasios (Elsevier, 2014)
    Offshore wind installations depend strongly on an improved knowledge of the atmospheric and ocean conditions affecting the marine atmospheric boundary layer (MABL). In particular the better understanding of atmospheric ...
    Journal article
  • Analysis of CryoSat’s radar altimeter waveforms over different Arctic sea ice regimes 

    Zygmuntowska, Marta; Khvorostovsky, Kirill (The University of Bergen, 2014-06-11)
    Satellite altimetry has been used to derive information about sea ice thickness in the Arctic already for several decades. As part of the algorithms applied the shape of the radar signal is used to identify leads, the ...
    Journal article
  • Analysis of the vertical temperature structure in the Bergen valley, Norway, and its connection to pollution episodes, and its connection to pollution episodes 

    Wolf, Tobias; Esau, Igor; Reuder, Joachim (WileyAmerican Geophysical Union, 2014-09)
    The vertical temperature profile in the lowest 1000m of the atmosphere determines a number of important physical processes and meteorological phenomena such as high concentrations of anthropogenic air pollutants in urban ...
    Journal article
  • Anthropogenic increase of oceanic pCO2 in the Barents Sea surface water 

    Omar, Abdirahman M.; Johannessen, Truls; Kaltin, Staffan; Olsen, Are (American Geophysical Union, 2003-12-26)
    We evaluate the change of surface water CO2 partial pressure ( pCO2 sw) in the Barents Sea (BS) between 1967 and 2000–2001. We use temperature (T) data collected during a survey in the BS in 1967 and a relationship between ...
    Peer reviewedJournal article
  • Antibiotic uptake by cultured Atlantic cod leucocytes and effect on intracellular Francisella noatunensis subsp. noatunensis replication 

    Kaldestad, Marte Albriktsen; Haugland, Gyri Teien; Rønneseth, Anita; Wergeland, Heidrun Inger; Samuelsen, Ole Bent (Inter-Research, 2014-02-04)
    The granuloma disease caused by Francisella noatunensis subsp. noatunensis in farmed Atlantic cod has not been successfully treated by use of antibacterials, even when antibacterial resistance testing indicates a sufficient ...
    Journal article
  • Application of Vertically-Integrated Models with Subscale Vertical Dynamics to Field Sites for CO2 Sequestration 

    Guo, B; Bandilla, Karl W.; Keilegavlen, Eirik; Doster, Florian; Celia, Michael A. (Elsevier, 2014)
    To address the engineering questions on security issues of geological carbon sequestration (GCS), a broad range of computational models with different levels of complexity have been developed - from multiphase multicomponent ...
    Journal article
  • Approaches to defining a planetary boundary for biodiversity 

    Mace, Georgina M.; Reyers, Belinda; Alkemade, Rob; Biggs, Reinette; Chapin, F. Stuart; Cornell, Sarah E.; Díaz, Sandra; Jennings, Simon; Leadley, Paul; Mumby, Peter J.; Purvis, Andy; Scholes, Robert J.; Seddon, Alistair; Solan, Martin; Steffen, W.; Woodward, Guy (PLoS, 2014-09)
    The idea that there is an identifiable set of boundaries, beyond which anthropogenic change will put the Earth system outside a safe operating space for humanity, is attracting interest in the scientific community and ...
    Journal article
  • Aquaporin evolution in fishes 

    Finn, Roderick Nigel; Cerdà, Joan (Frontiers Research Foundation, 2011-07-26)
    Aquaporins represent a primordial group of transmembrane solvent channels that have been documented throughout the living biota. This facet alone emphasizes the positive selection pressure for proteins associated with ...
    Peer reviewedJournal article
  • Arachnoid cysts do not contain cerebrospinal fluid: A comparative chemical analysis of arachnoid cyst fluid and cerebrospinal fluid in adults 

    Berle, Magnus; Wester, Knut; Ulvik, Rune Johan; Kroksveen, Ann Cathrine; Haaland, Øystein; Amiry-Moghaddam, Mahmood; Berven, Frode S. (BioMed Central, 2010-06-10)
    Background Arachnoid cyst (AC) fluid has not previously been compared with cerebrospinal fluid (CSF) from the same patient. ACs are commonly referred to as containing "CSF-like fluid". The objective of this study was to ...
    Journal articlePeer reviewed
  • Arctic Holocene proxy climate database – New approaches to assessing geochronological accuracy and encoding climate variables 

    Sundqvist, H.S.; Kaufmann, Darrell; MaKay, Nickholas; Axford, Y.; Balascio, Nickholas; Briner, Jason P.; Cwynar, L.C.; Sejrup, Hans Petter; Subetto, D.A.; Andrews, J.T.; Bakke, Jostein; Birks, Harry John Betteley; Brooks, S.J.; Vernal, A.E.; Jennings, A.E.; Ljungvist, K.M.; Rûhland, K.M.; Saenger, C.; Smol, J.P.; Viau, A.E. (Copernicus Publications, 2014-08-29)
    We present a systematic compilation of previously published Holocene proxy climate records from the Arctic. We identified 170 sites from north of 58° N latitude where proxy time series extend back at least to 6 cal ka (all ...
    Journal article
  • Arctic sea ice and Eurasian climate: A review 

    Gao, Yongqi; Sun, Jianqi; Li, Fei; He, Shengping; Sandven, Stein; Yan, Qing; Zhang, Zhongshi; Lohmann, Katja; Keenlyside, Noel; Furevik, Tore; Suo, Lingling (Science Press, 2014-11-28)
    The Arctic plays a fundamental role in the climate system and has shown significant climate change in recent decades, including the Arctic warming and decline of Arctic sea-ice extent and thickness. In contrast to the ...
    Journal article
  • The Arctic Summer Cloud Ocean Study (ASCOS): Overview and experimental design 

    Tjernström, Michael; Leck, Caroline; Birch, Cathryn E.; Bottenheim, Jan W.; Brooks, Barbara J.; Brooks, Ian M.; Bäcklin, Leif; Chang, Rachel; de Leeuw, Gerrit; Di Liberto, Luca; De La Rosa, Sara; Granath, Eva; Graus, Martin; Hänsel, Armin; Heintzenberg, Jost; Held, Andreas; Hind, Andrew; Johnston, Paul; Knulst, Johan C.; Martin, Maria; Matrai, Patricia A.; Mauritsen, Thorsten; Müller, Markus; Norris, Sarah J.; Orellana, Mónica V.; Orsini, Douglas A.; Paatero, Jussi; Persson, P. Ola G.; Gao, Qiuju; Rauschenberg, Carlton; Ristovski, Zoran; Sedlař, Joseph; Shupe, Matthew D.; Sierau, Berko; Sirevaag, Anders; Sjögren, Staffan; Stetzer, Olaf; Swietlicki, Erik; Szczodrak, Malgorzata; Vaattovaara, Petri; Wahlberg, Nils; Westberg, Maria; Wheeler, Cassie R. (Copernicus Publications, 2014-03-19)
    The climate in the Arctic is changing faster than anywhere else on earth. Poorly understood feedback processes relating to Arctic clouds and aerosol–cloud interactions contribute to a poor understanding of the present ...
    Journal article