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    • Characterization of flow dynamics and reduced-order description of experimental two-phase pipe flow 

      Viggiano, Bianca; Skjæraasen, Olaf; Schümann, Heiner; Tutkun, Murat; Cal, Raúl Bayoán (Peer reviewed; Journal article, 2018)
      Two-phase dispersed and slug flows in a pipe are investigated using proper orthogonal decomposition (POD). The data are acquired through tomographic reconstruction of X-ray measurements, where holdup, cross-sectional phase ...

    • Characterization of hollow glass microspheres with potential for regional climate intervention to preserve snow and ice surfaces 

      Farkas, Julia; Aune, Marianne; Hansen, Bjørn Henrik; Nordam, Tor; Nordtug, Trond; Almeida Carvalho, Patricia; Throne-Holst, Mimmi (Peer reviewed; Journal article, 2023)
      Cold regions including the Arctic are warming fast, resulting in increased losses of snow and ice cover. A climate intervention approach, where hollow glass microspheres (HGMs) are applied on snow and ice surfaces such as ...

    • Characterization of liquid products from slow pyrolysis of woody biomass 

      Wang, Liang; Czégény, Zsuzsanna; Tschentscher, Roman; Skreiberg, Øyvind (Peer reviewed; Journal article, 2022)
      In the present work, birch and spruce woodchips were pyrolyzed in a fixed bed reactor under different pyrolysis conditions. The effects of pyrolysis temperature and atmosphere (i.e., with and without gas purging) on yield ...

    • Characterization of Microbial Diversity in Decayed Wood from a Spanish Forest: An Environmental Source of Industrially Relevant Microorganisms 

      Velasco-Rodríguez, Óscar; Fil, Mariana; Heggeset, Tonje Marita Bjerkan; Degnes, Kristin Fløgstad; Becerro-Recio, David; Kolsaková, Katarina; Haugen, Tone; Jønsson, Malene; Toral-Martínez, Macarena; García-Estrada, Carlos; Sola-Landa, Alberto; Josefsen, Kjell Domaas; Sletta, Håvard; Barreiro, Carlos (Peer reviewed; Journal article, 2022)
      Rotting wood is inhabited by a large diversity of bacteria, fungi, and insects with complex environmental relationships. The aim of this work was to study the composition of the microbiota (bacteria and fungi) in decaying ...

    • Characterization of Porous Structures of Cellulose Nanofibrils Loaded with Salicylic Acid 

      McDonagh, Birgitte Hjelmeland; Chinga-Carrasco, Gary (Peer reviewed; Journal article, 2020)
      Bleached and unbleached pulp fibers were treated with 2,2,6,6-tetramethylpyperidine-1-oxyl (TEMPO) mediated oxidation to obtain cellulose nanofibrils (CNFs). The resulting bleached and unbleached CNFs were mixed with ...

    • Characterization of Rough PTFE Surfaces by the Modified Wilhelmy Balance Technique 

      Karl, Christian; Krauklis, Andrey; Lang, Andrej; Giese, Ulrich (Peer reviewed; Journal article, 2020)
      The wetting of rough polymer surfaces is of great importance for many technical applications. In this paper, we demonstrate the relationship between the mean roughness values and the fractal dimension of rough and self-affine ...

    • Characterization, thermodynamics and mechanism of formation of SiC-SiOx core–shell nanowires 

      Broggi, Andrea; Ringdalen, Eli; Tangstad, Merete (Peer reviewed; Journal article, 2020)
      Silicon carbide nanowires are valuable for electronic and optical applications, due to their high mechanical and electrical properties. Previous studies demonstrated that nanowires can be produced easily, by mixing a ...

    • Charcoal and Use of Green Binder for Use in Carbon Anodes in the Aluminium Industry 

      Sommerseth, Camilla; Darell, Ove; Øye, Bjarte Arne; Støre, Anne; Rørvik, Stein (The Minerals, Metals & Materials Series;2367-1181, Chapter; Peer reviewed, 2020)
      Carbon anodes for aluminium production are produced from calcined petroleum coke (CPC), recycled anode butts and coal tar pitch (CTP). The CO2 produced during anode consumption contributes to a substantial amount of the ...

    • Charge Transport in 2D MoS2, WS2, and MoS2–WS2 Heterojunction-Based Field-Effect Transistors: Role of Ambipolarity 

      Kaushik, Vishakha; Ahmad, Mujeeb; Khushboo, Agarwal; Varandani, Deepak; Belle, Branson; Das, Pintu; Mehta, Bodh R. (Peer reviewed; Journal article, 2020)
      Electrical and optical characteristics of few-layered (3–4 L) chemical vapor deposition (CVD) grown MoS2, WS2, and MoS2–WS2 heterostructure-based back-gated field-effect transistor (FET) devices have herein been studied. ...

    • Chemical Durability of Thermal Insulating Materials in Hall-Héroult Electrolysis Cells 

      Luneng, Raymond; Bertel, Søren N.; Mikkelsen, Jørgen; Ratvik, Arne Petter; Grande, Tor (Peer reviewed; Journal article, 2019)
      The most common thermal insulating materials used in the cathode lining in aluminum electrolysis cells are Moler (diatomaceous earth), calcium silicate, or vermiculite based materials. The thermal insulation layer is ...

    • Chemical solution deposition of thin films for protonic ceramic fuel cells 

      Rørvik, Per Martin; Haavik, Camilla; Griesche, David; Schneller, Theodor; Lenrick, Filip; Wallenberg, L. Reine (Peer reviewed; Journal article, 2014)
      Chemical solution deposition (CSD) offers the opportunity to fabricate very thin electrolyte films at lower temperatures than traditional powder-based methods. CSD methods have not been used much in production of protonic ...

    • Chemical Stability and Characterization of Degradation Products of Blends of 1-(2-Hydroxyethyl)pyrrolidine and 3-Amino-1-propanol 

      Vevelstad, Solrun Johanne; Grimstvedt, Andreas Magnar; Francois, Maxime; Knuutila, Hanna K; Haugen, Geir; Wiig, Merete; Vernstad, Kai (Peer reviewed; Journal article, 2022)
      Aqueous amine solvents are used to capture CO2 from various flue gas sources. In this work, the chemical stability of a blend of 3-amino-1-propanol (3A1P) and 1-(2-hydroxyethyl)pyrrolidine [1-(2HE)PRLD] was studied. The ...

    • Chemical stability and H2 flux degradation of cercer membranes based on lanthanum tungstate and lanthanum chromite 

      Polfus, Jonathan M.; Li, Zuoan; Xing, Wen; Sunding, Martin Fleissner; Walmsley, John; Fontaine, Marie-Laure; Henriksen, Partow Pakdel; Bredesen, Rune (Peer reviewed; Journal article, 2016)
      Ceramic–ceramic composite (cercer) membranes of (Mo-doped) lanthanum tungstate, La27(W,Mo)5O55.5−δ, and lanthanum chromite, La0.87Sr0.13CrO3−δ, have recently been shown to exhibit H2 permeabilities among state-of-the-art. ...

    • Chemical stability of Ca3Co4−xO9+δ/CaMnO3−δ p–n junction for oxide-based thermoelectric generators 

      Gunnæs, Anette Eleonora; Tofan, Raluca; Berland, Kristian; Gorantla, Sandeep Madhukar; Storaas, Thomas Aarflot; Desissa, Temesgen Debelo; Schrade, Matthias; Persson, Clas; Einarsrud, Mari-Ann; Wiik, Kjell; Norby, Truls Eivind; Kanas, Nikola (Peer reviewed; Journal article, 2020)
      An all-oxide thermoelectric generator for high-temperature operation depends on a low electrical resistance of the direct p–n junction. Ca3Co4−xO9+δ and CaMnO3−δ exhibit p-type and n-type electronic conductivity, respectively, ...

    • A Children’s Health Perspective on Nano- and Microplastics 

      Sripada, Kam; Wierzbicka, Aneta; Abass, Khaled; Grimalt, Joan O.; Erbe, Andreas; Röllin, Halina B.; Weihe, Pál; Díaz, Gabriela Jiménez; Singh, Randolph Reyes; Visnes, Torkild; Rautio, Arja; Odland, Jon Øyvind; Wagner, Martin (Peer reviewed; Journal article, 2022)

    • Chitosan as a wound dressing starting material: antimicrobial Properties and mode of action 

      Matica, Mariana Adina; Aachmann, Finn Lillelund; Tøndervik, Anne; Sletta, Håvard; Ostafe, Vasile (Peer reviewed; Journal article, 2019)
      Fighting bacterial resistance is one of the concerns in modern days, as antibiotics remain the main resource of bacterial control. Data shows that for every antibiotic developed, there is a microorganism that becomes ...

    • Circular Economy and the triple bottom line in Norway 

      Wiebe, Kirsten Svenja; Nørstebø, Vibeke Stærkebye; Rocha Aponte, Fabian; Silva Simas, Moana; Andersen, Tina; Valdes, Gerardo Alfredo Perez (Peer reviewed; Journal article, 2023)
      A more circular economy aims to reduce global material consumption, make the most out of our resources, and create a more sustainable economic system. In this paper, we analyze how different circular economy actions in ...

    • Cleaning of polycyclic aromatic hydrocarbons (PAH) obtained from ferroalloys plant 

      Panjwani, Balram; Andersson, Stefan; Wittgens, Bernd; Olsen, Jan Erik (Chapter, 2017)
      Polycyclic Aromatic hydrocarbons (PAHs) are organic compounds consisting of only hydrogen and aromatic carbon rings. PAHs are neutral, non-polar molecules that are produced due to incomplete combustion of organic matter. ...

    • Cleaning of polycyclic aromatic hydrocarbons (PAH) obtained from ferroalloys plant 

      Panjwani, Balram; Andersson, Stefan; Wittgens, Bernd; Olsen, Jan Erik (SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)
      Polycyclic Aromatic hydrocarbons (PAHs) are organic compounds consisting of only hydrogen and aromatic carbon rings. PAHs are neutral, non-polar molecules that are produced due to incomplete combustion of organic matter. ...

    • Closure Law Model Uncertainty Quantification 

      Strand, Andreas; Kjølaas, Jørn; Bergstrøm, Trond Harald; Steinsland, Ingelin; Hellevik, Leif Rune (Peer reviewed; Journal article, 2021)
      The prediction uncertainty in simulators for industrial processes is due to uncertainties in the input variables and uncertainties in specification of the models, in particular the closure laws. In this work, the uncertainty ...