• Flow-Area Relations in Immiscible Two-Phase Flow in Porous Media 

      Roy, Subhadeep; Sinha, Santanu; Hansen, Alex (Journal article; Peer reviewed, 2020)
      We present a theoretical framework for immiscible incompressible two-phase flow in homogeneous porous media that connects the distribution of local fluid velocities to the average seepage velocities. By dividing the pore ...
    • Fluid flow through 3D-printed particle beds: a new technique for understanding, validating, and improving predictability of permeability from empirical equations 

      Gjengedal, Sondre; Brøtan, Vegard; Buset, Ole Tore; Larsen, Erik; Åsebø Berg, Olav; Torsæter, Ole; Ramstad, Randi Kalskin; Hilmo, Bernt Olav; Frengstad, Bjørn (Peer reviewed; Journal article, 2020)
      The application of 3D technology for fabrication of artificial porous media samples improves porous media flow studies. The geometrical characteristics of a porous media pore channel: the channel shape, size, porosity, ...
    • Fluid Meniscus Algorithms for Dynamic Pore-Network Modeling of Immiscible Two-Phase Flow in Porous Media 

      Sinha, Santanu; Gjennestad, Magnus Aashammer; Vassvik, Morten; Hansen, Alex (Peer reviewed; Journal article, 2021)
      We present in detail a set of algorithms for a dynamic pore-network model of immiscible two-phase flow in porous media to carry out fluid displacements in pores. The algorithms are universal for regular and irregular pore ...
    • Fluorescent Ligands for Detection of Transthyretin Amyloid - Photophysics and Cytotoxicity on Astrocytes 

      Ertzgaard, Ingrid (Master thesis, 2021)
      Når proteiner feilfoldes og danner uoppløselige avleiringer får man amyloidfibriller. Sykdommer som forårsakes av disse proteinaggregatene kalles for amyloidose. Når transportproteinet transthyretin (TTR) danner amyloidfibriller ...
    • Fluorescent Nanocomposites: Hollow Silica Microspheres with Embedded Carbon Dots 

      Delic, Asmira; Mariussen, Espen; Roede, Erik Dobloug; Krivokapic, Alexander; Erbe, Andreas; Lindgren, Mikael; Benelmekki, Maria; Einarsrud, Mari-Ann (Journal article; Peer reviewed, 2021)
      Intrinsically fluorescent carbon dots may form the basis for a safer and more accurate sensor technology for digital counting in bioanalytical assays. This work presents a simple and inexpensive synthesis method for producing ...
    • Fluorohectorite as a CO2 adsorbent: a DFT and DFTB study. 

      McDougall, Siv-Marie (Master thesis, 2020)
      I denne oppgaven gjøres beregninger med tetthetsfunksjonalteori (DFT) og tetthetsfunksjonalteori tight binding (DFTB) på leirematerialet fluorhektoritt for å finne hvilke kationer som passer best for interkalasjon av CO2. ...
    • Flux Optimisation of the Cold Neutron Source in the JEEP II Reactor 

      Kaald, Sindre Hestnes (Master thesis, 2019)
      The purpose of this thesis is to describe the optimisation of the cold moderator setup in the JEEP II research reactor. This includes the development of a MCNP model of the tangential beam channel of the JEEP II, combining ...
    • Flytende tak i en konsertsal 

      Eftevand, Mathias Sandvær (Master thesis, 2013)
      I denne masteroppgaven har det blitt sett på hva som skjer med de vanlige romakustiske parametrene ved å ha et fritthengende flytende tak med åpning mot sideveggene i en konsertsal. Koplingen mellom rommet over og under ...
    • Focused ultrasound and microbubble treatment increases delivery of transferrin receptor-targeting liposomes to the brain 

      Olsman, Marieke; Sereti, Viktoria; Mühlenpfordt, Melina; Johnsen, Kasper Bendix; Andresen, Thomas Lars; Urquhart, Andrew James; Davies, Catharina de Lange (Peer reviewed; Journal article, 2021)
      The blood-brain barrier (BBB) is a major obstacle to treating several brain disorders. Focused ultrasound (FUS) in combination with intravascular microbubbles increases BBB permeability by opening tight junctions, creating ...
    • Formation models for cosmic ray antinuclei 

      Kachelriess, Michael; Ostapchenko, Sergey; Tjemsland, Jonas (Peer reviewed; Journal article, 2022)
      The expected low background of light antinuclei, such as antideuteron and antihelium-3, makes them ideal detection channels for exotic physics, such as dark matter annihilations. At the same time, their small binding ...
    • Formation of Hydroxyapatite via Transformation of Amorphous Calcium Phosphate in the Presence of Alginate Additives 

      Ucar, Seniz; Bjørnøy, Sindre Hove; Bassett, David; Strand, Berit Løkensgard; Sikorski, Pawel; Andreassen, Jens-Petter (Journal article; Peer reviewed, 2019)
      Hydroxyapatite (HA) is the primary mineral of vertebral tooth and bone tissue; thus, it is often incorporated into synthetic composite materials designed for hard tissue engineering applications. Understanding the formation ...
    • Formation of intermediate bands in silicon by transition metal doping - A DFT/DFTB computational study 

      Solevåg-Hoti, Kenny (Master thesis, 2016)
      The intermediate band solar cell offers the possibility of increasing the efficiency of modern-day solar cells. By having a narrow intermediate band placed in the conventional band gap, sequential absorption of photons is ...
    • Formation of light (anti)nuclei 

      Tjemsland, Jonas (Peer reviewed; Journal article, 2021)
      The production mechanism of light nuclei, such as deuteron, helium-3, tritium and their antiparticles, has recently attracted an increased attention from the astroparticle and heavy ion communities. The expected low ...
    • Formulation and characterisation of drug-loaded antibubbles for image-guided and ultrasound-triggered drug delivery 

      Kotopoulis, Spiros; Lam, Christina; Haugse, Ragnhild; Snipstad, Sofie; Murvold, Elsa Thodesen; Jouleh, Tæraneh; Berg, Sigrid; Hansen, Rune; Popa, Mihaela-Lucia; Mccormack, Emmet Matin; Gilja, Odd Helge; Poortinga, Albert (Peer reviewed; Journal article, 2022)
      The aim of this study was to develop high load-capacity antibubbles that can be visualized using diagnostic ultrasound and the encapsulated drug can be released and delivered using clinically translatable ultrasound. The ...
    • Four-wave Mixing-based Wavelength Conversion and Parametric Amplification in Submicron Silicon Core Fibers 

      Wu, Dong; Shen, Li; Ren, Haonan; Huang, Meng; Lacava, Cosimo; Campling, Joseph; Sun, Shiyu; Hawkins, Thomas A.; Gibson, Ursula; Petropoulos, Periklis; Ballato, John; Peacock, Anna (Peer reviewed; Journal article, 2020)
      Silicon core fibers represent a versatile platform for all-fiber integrated nonlinear optical applications. This paper describes the state of the art in four-wave mixing-based parametric amplification, and wavelength ...
    • Fourier ptychographic reconstruction using neural networks trained on stock images 

      Eriksen,Magnus Hovde (Master thesis, 2023)
      Fourier ptykografi er en beregningsbasert avbildningsteknikk for å oppnå høy oppløsning og samtidig et bredt synsfelt (FoV). Teknikken består av hente informasjon om prøvens Fourier spektrum ved å belyse prøven fra ...
    • Fourier ptychography algorithm based on scaled Fourier transform 

      Hasanzade, Mojde; Hussain, Nazabat; Breiby, Dag Werner; Akram, Muhammad Nadeem (Peer reviewed; Journal article, 2021)
      This letter discusses an alternative Fourier ptychography algorithm based on the scaled fast Fourier transform propagation. The advantage of this scheme is that it enables a zoom-in capability of the object spectrum and ...
    • Fourier ptychography for computationally enhanced imaging in two and three dimensions 

      Schnell, Knut Olav (Master thesis, 2019)
      Fourierptykografi (FP) er en nylig utviklet beregningsbasert avbildningsteknikk som kan forbedre egenskapene til et konvensjonelt optisk mikroskop utover de klassiske grensene som bestemmes av de optiske komponentene ...
    • Fracture networks in sea ice 

      Vevatne, Jonas Nesland; Rimstad, Eivind; Hope, Sigmund Mongstad; Korsnes, Reinert; Hansen, Alex (Journal article; Peer reviewed, 2014-04-16)
      Fracturing and refreezing of sea ice in the Kara sea are investigated using complex network analysis. By going to the dual network, where the fractures are nodes and their intersections links, we gain access to topological ...
    • Fracturing of Optimal Paths in a Random Lattice 

      Voigt, Andre (Master thesis, 2011)
      The subject of this thesis is the study of the creation of fault lines in a random lattice, provoked by the successive failure of optimal paths. Using the recently developed Optimal Path Cracked model, we investigate how ...