Browsing Faculty of Mathematics and Natural Sciences by Title

Now showing items 3982-4001 of 9919

    • The Impact of Oxygen on the Reconnection Rate 

      Tenfjord, Paul; Hesse, Michael; Norgren, Astrid Elisabet Cecilia; Spinnangr, Susanne Flø; Kolstø, Håkon Midthun (Peer reviewed; Journal article, 2019-05-29)
      We investigate the role of a background oxygen population in magnetic reconnection, using particle‐in‐cell simulations. We run several simulations, with different initial oxygen temperatures and densities, to understand ...

    • Impact of parents' education on variation in hospital admissions for children: a population-based cohort study 

      Olsen, Frank; Balteskard, Lise; Uleberg, Bård Erling; Jacobsen, Bjarne K.; Heuch, Ivar; Moen, Atle (Journal article; Peer reviewed, 2021)
      Objectives To assess the impact of parental educational level on hospital admissions for children, and to evaluate whether differences in parents' educational level can explain geographic variation in admission rates. ...

    • Impact of physical obstacles on the structural and effective connectivity of in silico neuronal circuits 

      Ludl, Adriaan-Alexander; Soriano, Jordi (Journal article; Peer reviewed, 2020)
      Scaffolds and patterned substrates are among the most successful strategies to dictate the connectivity between neurons in culture. Here, we used numerical simulations to investigate the capacity of physical obstacles ...

    • The Impact of Pre‐Salt Rift Topography on Salt Tectonics: A Discrete‐Element Modeling Approach 

      M Pichel, Leonardo; Finch, Emma; Gawthorpe, Rob (Peer reviewed; Journal article, 2019)
      Gravity‐driven salt tectonics along passive margins is commonly depicted as comprising domains of updip extension and downdip contraction linked by an intermediate, broadly undeformed zone of translation. This study expands ...

    • The Impact of Rheology on Viscous Oil Displacement by Polymers Analyzed by Pore-Scale Network Modelling 

      Salmo, Iselin Cecilie; Sorbie, Ken; Skauge, Arne (Journal article; Peer reviewed, 2021)
      Several experimental studies have shown significant improvement in heavy oil recovery with polymers displaying different types of rheology, and the effect of rheology has been shown to be important. These experimental ...

    • Impact of runoff temporal distribution on ice dynamics 

      Fleurian, Basile de; Davy, Richard; Langebroek, Petra (Journal article; Peer reviewed, 2022)
      Record highs of meltwater production at the surface of the Greenland ice sheet have been recorded with a high recurrence over the last decades. Those melt seasons with longer durations, larger intensities, or with both ...

    • Impact of sea ice transport on Beaufort Gyre liquid freshwater content 

      Cornish, Sam B.; Muilwijk, Morven; Scott, Jeffery R.; Marson, Juliana M.; Myers, Paul G.; Zhang, Wenhao; Wang, Qiang; Kostov, Yavor; Johnson, Helen L.; Marshall, John (Journal article; Peer reviewed, 2023)
      The Arctic Ocean’s Beaufort Gyre (BG) is a wind-driven reservoir of relatively fresh seawater, situated beneath time-mean anticyclonic atmospheric circulation, and is covered by mobile pack ice for most of the year. Liquid ...

    • Impact of seasonal fluctuations of ice velocity on decadal trends observed in Southwest Greenland 

      Halas, Paul Lucas; Mouginot, Jérémie; de Fleurian, Basile; Langebroek, Petra (Journal article; Peer reviewed, 2023)
      By tracking the feature displacement between satellite images spaced approximately one year apart, surface runoff has been shown to have a long-term impact on the average ice flow of a land-terminating sector of Greenland. ...

    • Impact of Snow Initialization in Subseasonal‐to‐Seasonal Winter Forecasts With the Norwegian Climate Prediction Model 

      Li, Fei; Orsolini, Yvan; Keenlyside, Noel; Shen, Mao-Lin; Counillon, Francois; Wang, Yiguo (Peer reviewed; Journal article, 2019)
      Snow initialization has been previously investigated as a potential source of predictability atthe subseasonal‐to‐seasonal (S2S) timescale in winter and spring, through its local radiative,thermodynamical, and hydrological ...

    • Impact of solar irradiance and geomagnetic activity on polar NOx, ozone and temperature in WACCM simulations 

      Tartaglione, Nazario; Toniazzo, Thomas; Orsolini, Yvan J.; Otterå, Odd Helge (Journal article; Peer reviewed, 2020)
      The response of the atmosphere to solar irradiance and geomagnetic activity is analyzed in experiments with the Whole Atmosphere Community Climate Model (WACCM) under idealized forcings. Four experiments are carried out ...

    • Impact of space weather on the polar atmosphere 

      Edvartsen, Jone Øvretvedt (Master thesis, 2020-07-01)
      The impact of the Chemical-Dynamical coulping and the Mansurov effect are examined. Statistical correlations are found for both mechanisms. The possibility of an aliasing effect being responsible for the obtained significance ...

    • Impact of springtime Himalayan-Tibetan Plateau snowpack on the onset of the Indian summer monsoon in coupled seasonal forecasts 

      Senan, Retish; Orsolini, Yvan; Weisheimer, Antje; Vitart, Frédéric; Balsamo, Gianpaolo; Dutra, E.; Doblas-Reyes, Franscisco J.; Basang, Droma (Peer reviewed; Journal article, 2016-02-20)
      The springtime snowpack over the Himalayan–Tibetan Plateau (HTP) region and Eurasia has long been suggested to be an influential factor on the onset of the Indian summer monsoon. To assess the impact of realistic initialization ...

    • The impact of sunlight on high-latitude equivalent currents 

      Laundal, Karl Magnus; Gjerløv, Jesper; Østgaard, Nikolai; Reistad, Jone Peter; Haaland, Stein; Snekvik, Kristian; Tenfjord, Paul; Ohtani, Shin-ichi; Milan, Steve (Peer reviewed; Journal article, 2016-03)
      Ground magnetic field measurements can be mathematically related to an overhead ionospheric equivalent current. In this study we look in detail at how the global equivalent current, calculated using more than 30 years of ...

    • The impact of surface currents on the wave climate in narrow fjords 

      Christakos, Konstantinos; Björkqvist, Jan-Victor; Breivik, Øyvind; Tuomi, Laura; Furevik, Birgitte Rugaard; Albretsen, Jon (Journal article; Peer reviewed, 2021)
      This study investigates the effect of surface currents on wind-generated waves in a complex coastal system with narrow fjords. The simulations are based on a phase-averaged wave model forced with surface currents from a ...

    • Impact of temporomandibular joint complaints on tinnitus-related distress 

      Edvall, Niklas K; Gunan, Edis; Genitsaridi, Eleni; Lazar, Andra; Mehraei, Golbarg; Billing, Mattias; Tullberg, Marie; Bulla, Jan; Whitton, Jonathon; Canlon, Barbara; Hall, Deborah A; Cederroth, Christopher R (Peer reviewed; Journal article, 2019-08-22)
      There is increasing evidence of associations between the presence of temporomandibular joint (TMJ) disorders and tinnitus. It has been recently proposed that tinnitus patients with TMJ complaints could constitute a subtype, ...

    • Impact of the Agulhas Current on Southern Africa Precipitation: A Modeling Study 

      Nkwinkwa, Arielle Stela Imbol; Rouault, Mathieu; Keenlyside, Noel Sebastian; Koseki, Shunya (Journal article; Peer reviewed, 2021)
      The Agulhas Current (AC) creates a sharp temperature gradient with the surrounding ocean, leading to a large turbulent flux of moisture from ocean to atmosphere. We use two simulations of the Weather Research and Forecasting ...

    • The impact of the wind stress curl in the North Atlantic on the Atlantic inflow to the Norwegian Sea toward the Arctic 

      Orvik, Kjell Arild; Skagseth, Øystein (Peer reviewed; Journal article, 2003-09-04)
      The Norwegian Atlantic Current (NwAC) through the Norwegian Sea serves as a conduit of warm and saline Atlantic water from the North Atlantic to the Arctic Ocean, an important factor for climate and ecology. In this study, ...

    • Impact of time-dependent wettability alteration on the dynamics of capillary pressure 

      Kassa, Abay; Gasda, Sarah; Kumar, Kundan; Radu, Florin Adrian (Journal article; Peer reviewed, 2020)
      Wettability is a pore-scale property that has an important impact on capillarity, residual trapping, and hysteresis in porous media systems. In many applications, the wettability of the rock surface is assumed to be constant ...

    • The impact of turbulence modelling on large offshore wind turbine response 

      Nybø, Astrid (Doctoral thesis, 2022-10-28)
      In order to reduce climate change, a large up-scaling of renewable energy capacity is necessary in the near future. Offshore wind is expected to play a key role in this green shift. The wind conditions offshore are in ...

    • Impact of variable proton relative biological effectiveness on estimates of secondary cancer risk in paediatric cancer patients 

      Grandemo, Vilde (Master thesis, 2018-12-12)
      Background: Proton therapy has an increased dose-conformity compared to conventional radiotherapy with photons, and paediatric cancer patients receiving cranio-spinal irradiation (CSI) are routinely referred to this treatment ...