Now showing items 993-1012 of 1484

    • Observation of Electric-Field-Induced Structural Dislocations in a Ferroelectric Oxide 

      Evans, Donald; Småbråten, Didrik Rene; Holstad, Theodor Secanell; Vullum, Per Erik; Mosberg, Aleksander Buseth; Yan, Zewu; Bourret, Edith; Van Helvoort, Antonius; Selbach, Sverre Magnus; Meier, Dennis (Peer reviewed; Journal article, 2021)
      Dislocations are 1D topological defects with emergent electronic properties. Their low dimensionality and unique properties make them excellent candidates for innovative device concepts, ranging from dislocation-based ...
    • Observations of rising methane bubbles in Trondheimsfjord and its implications to gas dissolution 

      Olsen, Jan Erik; Krause, Daniel Franklin; Davies, Emlyn John; Skjetne, Paal (Journal article; Peer reviewed, 2019-02-13)
      Gas dissolution reduces the release of methane to the atmosphere from subsea sources. Being able to predict and assess the methane flux to the atmosphere requires knowledge on gas dissolution and mass transfer. This can ...
    • Observations of rising methane bubbles in Trondheimsfjord and its implications to gas dissolution 

      Olsen, Jan Erik; Krause, Daniel Franklin; Davies, Emlyn John; Skjetne, Paal (Journal article; Peer reviewed, 2019-03-01)
      Gas dissolution reduces the release of methane to the atmosphere from subsea sources. Being able to predict and assess the methane flux to the atmosphere requires knowledge on gas dissolution and mass transfer. This can ...
    • Occurrence, characterisation and fate of (nano)particulate Ti and Ag in two Norwegian wastewater treatment plants 

      Polesel, Fabio; Farkas, Julia; Kjos, Marianne Steinsvik; Almeida Carvalho, Patricia; Flores-Alsina, Xavier; Gernaey, Krist V.; Hansen, Steffen Foss; Plosz, Benedek; Booth, Andy (Journal article; Peer reviewed, 2018-09-15)
      Due to their widespread application in consumer products, elemental titanium (e.g., titanium dioxide, TiO2) and silver (Ag), also in nanoparticulate form, are increasingly released from households and industrial facilities ...
    • Offset dependence of overburden time-shifts from ultrasonic data 

      Bakk, Audun; Holt, Rune Martin; Bauer, Andreas; Dupuy, Bastien; Romdhane, Mohamed Anouar (Peer reviewed; Journal article, 2020)
      Depletion or injection into a reservoir implies stress changes and strains in the reservoir and its surroundings. This may lead to measurable time-shifts for seismic waves propagating in the subsurface. To better understand ...
    • Offshore Wind: Employment and value creation of EPCI exports in Norway 

      Rocha Aponte, Fabian; Andersen, Tina; Nørstebø, Vibeke Stærkebye; Uggen, Kristin Tolstad; Bjelle, Eivind Lekve; Wiebe, Kirsten Svenja (Peer reviewed; Journal article, 2021)
      The objective of this study is to investigate the value creation potential and the employment effects for the offshore wind engineering, procurement, construction and installation (EPCI) sector in Norway up to 2030 considering ...
    • On capital utilization in the hydrogen economy: The quest to minimize idle capacity in renewables-rich energy systems 

      Cloete, Schalk Willem Petrus; Ruhnau, Oliver; Hirth, Lion (Peer reviewed; Journal article, 2020)
      The hydrogen economy is currently experiencing a surge in attention, partly due to the possibility of absorbing variable renewable energy (VRE) production peaks through electrolysis. A fundamental challenge with this ...
    • On Common Research Needs for the Next Generation of Floating Support Structures 

      Aksnes, Vegard Øgård; Alsos, Hagbart Skage; Bachynski-Polic, Erin Elizabeth; Berthelsen, Petter Andreas; Delhaye, Virgile Roger; Furevik, Birgitte Rugaard; Jostad, Hans Petter; Kristiansen, Trygve; Ommani, Babak (Chapter; Peer reviewed, 2022)
      The world is facing several industrial and societal challenges, such as providing enough renewable energy and enough safe and healthy food as formulated in the United Nations sustainable development goals. Using floating ...
    • On intermetallic phases formed during interdiffusion between aluminium alloys and stainless steel 

      Bergh, Tina; Arbo, Siri Marthe; Hagen, Anette Brocks; Blindheim, Jørgen; Friis, Jesper; Khalid, Muhammad Zeeshan; Ringdalen, Inga Gudem; Holmestad, Randi; Westermann, Ida; Vullum, Per Erik (Peer reviewed; Journal article, 2022)
      One of the major challenges in welding of aluminium (Al) alloys and steels is the growth of brittle intermetallic phases, which depends on the thermomechanical processing history and the alloying elements. This work focuses ...
    • On pragmatism in industrial modeling 

      Zoric, Josip; Johansen, Stein Tore; Einarsrud, Kristian Etienne; Solheim, Asbjørn (SINTEF Proceedings;1, Chapter, 2015)
      Many natural or industrial processes are of extreme complexity, and where the time- and length scales range from an atomistic level to years and kilometers. Often the processes or phenomena consist of multiple sub processes ...
    • On pragmatism in industrial modeling. Part III: Application to operational drilling 

      Johansen, Stein T.; Meese, Ernst A.; Zoric, Josip; Islam, Amunial; Martins, Dwayne W. (SINTEF Proceedings;2, Chapter, 2017)
      In this paper, we will apply the concepts of pragmatic industrial modelling to the development of a real time drilling support tool. We develop requirements to such a modelling tool, regarding both input and output, model ...
    • On scenario construction for stochastic shortest path problems in real road networks 

      Zhang, Dongqing; Wallace, Stein William; Guo, Zhaoxia; Dong, Yucheng; Kaut, Michal (Peer reviewed; Journal article, 2021)
      Stochastic shortest path (SSP) computations are often performed under very strict time constraints, so computational efficiency is critical. A major determinant for the CPU time is the number of scenarios used. We demonstrate ...
    • On the Atomic Structure of the β′′ Precipitate by Density Functional Theory 

      Frafjord, Jonas; Ringdalen, Inga Gudem; Holmestad, Randi; Friis, Jesper (Peer reviewed; Journal article, 2023)
      The substitution of elements into the precipitate in the 6xxx-series of aluminium alloys is an interface sensitive problem. The strain caused by the misfit between the precipitate and the matrix interacts with the size ...
    • On the biogenicity of Fe-oxyhydroxide filaments in silicified low-temperature hydrothermal deposits: Implications for the identification of Fe-oxidizing bacteria in the rock record 

      Johannessen, Karen Cecilie; McLoughlin, Nicola; Vullum, Per Erik; Thorseth, Ingunn Hindenes (Journal article; Peer reviewed, 2019)
      Microaerophilic Fe(II)‐oxidizing bacteria produce biomineralized twisted and branched stalks, which are promising biosignatures of microbial Fe oxidation in ancient jaspers and iron formations. Extracellular Fe stalks ...
    • On the choice of closure complexity in anisotropic drag closures for filtered Two Fluid Models 

      Cloete, Jan Hendrik; Cloete, Schalk Willem Petrus; Radl, Stefan; Amini, Shahriar (Journal article; Peer reviewed, 2019)
      Filtered Two Fluid Models (fTFMs) aim to enable accurate industrial-scale simulations of fluidized beds by means of closures accounting for the effects of bubbles and clusters. The present study aims to improve anisotropic ...
    • On the Direct Reduction Phenomena of Bauxite Ore Using H2 Gas in a Fixed Bed Reactor 

      Lazou, Adamantia; Eijk, Casper van der; Balomenos, Efthymios; Kolbeinsen, Leiv; Safarian, Jafar (Peer reviewed; Journal article, 2020)
      The Bayer Process is the dominant industrial method to produce alumina from bauxite ore. Due to the generation of large amounts of Bauxite Residue (red mud), an alternative method, called the Pedersen Process, is of our ...
    • On the Feasibility of Using Low-Melting Bath to Accommodate Inert Anodes in Aluminium Electrolysis Cells 

      Solheim, Asbjørn (Peer reviewed; Journal article, 2021)
      Inert anodes for aluminium production can be made of ceramics, metals, or a mixture of those (cermets). Regardless of the type of anode, the surface will be an oxide. With high enough anode potential, the surface oxide ...
    • On the mechanism of formation of back-end defects in the extrusion process 

      Valberg, Henry Sigvart; Lefstad, Martin; de Moraes Costa, André Luiz (Peer reviewed; Journal article, 2020)
      FEM-analysis is applied to study metal flow in aluminum extrusion with focus on how material flow defects form when the last part of the billet is extruded through an axisymmetric die. First, an overview is given of the ...
    • On the mechanism of Mn(II)-doping in Scandia stabilized zirconia electrolytes 

      Vøllestad, Einar; Øygarden, Vegar; Graff, Joachim Seland; Sunding, Martin Fleissner; Pietras, John D.; Polfus, Jonathan M.; Fontaine, Marie-Laure (Peer reviewed; Journal article, 2022)
      Cubic Scandia-stabilized zirconia (ScSZ) is an attractive electrolyte material for solid oxide cells due to its significant ionic conductivity, provided that the phase transition to its rhombohedral polymorph upon cooling ...
    • On the microstructural origins of improvements in conductivity by heavy deformation and ageing of Al-Mg-Si alloy 6101 

      Sunde, Jonas Kristoffer; Marioara, Calin Daniel; Wenner, Sigurd; Holmestad, Randi (Peer reviewed; Journal article, 2021)
      This work has examined an Al-0.54Mg-0.38Si (at.%) conductor alloy (6101) subjected to two different thermomechanical processing routes. Conventional solution treatment, quenching, and artificial ageing (170 °C) was compared ...