Browsing Det matematisk-naturvitenskapelige fakultet by Title

Now showing items 785-804 of 838

  • Towards bone regeneration: Understanding the nucleating ability of proline-rich peptides in biomineralisation 
    Øvrebø, Øystein; De Lauretis, Angela; Ma, Qianli; Perale, Giuseppe; Nilsen, Ola; Rossi, Filippo; Haugen, Håvard Jostein (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
    Obtaining rapid mineralisation is a challenge in current bone graft materials, which has been attributed to the difficulty of guiding the biological processes towards osteogenesis. Amelogenin, a key protein in enamel ...
  • Tracing North Atlantic volcanism and seaway connectivity across the Paleocene–Eocene Thermal Maximum (PETM) 
    Jones, Morgan Thomas; Stokke, Ella Wulfsberg; Svensen, Henrik Hovland; Planke, Sverre; Vickers, Madeleine Larissa (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Abstract. There is a temporal correlation between the peak activity of the North Atlantic Igneous Province (NAIP) and the Paleocene–Eocene Thermal Maximum (PETM), suggesting that the NAIP may have initiated and/or prolonged ...
  • Tracking Lithiation of Si-Based Anodes in Real Time by Total Scattering Computed Tomography 
    Wragg, David Stephen; Skautvedt, Casper; Brennhagen, Anders; Geiss, Carina; Checchia, Stefano; Koposov, Alexey (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    The existing set of characterization tools does not permit a full description of the three-dimensional (3D) structure and operating mechanisms of amorphous, low-scattering alloying active materials in metal-ion batteries. ...
  • Tracking Structural Deactivation of H-Ferrierite Zeolite Catalyst During MTH with XRD 
    Berdiell, Izar Capel; Braghin, Giorgio Bruno; Cordero-Lanzac, Tomas; Beato, Pablo; Lundegaard, Lars F.; Wragg, David Stephen; Bordiga, Silvia; Svelle, Stian (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Abstract We used the methanol-to-hydrocarbon (MTH) reaction as a shape-selective model reaction to investigate coke formation in zeolite H-Ferrierite. Despite being a 2D topology in terms of channel propagation, the FER ...
  • Trajectories of freshwater microbial genomics and greenhouse gas saturation upon glacial retreat 
    Wei, Jing; Fontaine, Laurent; Valiente Parra, Nicolas; Dörsch, Peter; Hessen, Dag Olav; Eiler, Alexander (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Abstract Due to climate warming, ice sheets around the world are losing mass, contributing to changes across terrestrial landscapes on decadal time spans. However, landscape repercussions on climate are poorly constrained ...
  • Transient electrohydrodynamic flow with concentration-dependent fluid properties: Modelling and energy-stable numerical schemes 
    Linga, Gaute; Bolet, Asger; Mathiesen, Joachim (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
    Transport of electrolytic solutions under influence of electric fields occurs in phenomena ranging from biology to geophysics. Here, we present a continuum model for single-phase electrohydrodynamic flow, which can be ...
  • Transient High Strain Rate During Localized Viscous Creep in the Dry Lower Continental Crust (Lofoten, Norway) 
    Campbell, Lucy; Menegon, Luca (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    Understanding the ability of the lower crust to support transient changes in stresses and strain rates during the earthquake cycle requires a detailed investigation of the deformation mechanisms and rheology of deep crustal ...
  • Transitioning from Methanol to Olefins (MTO) toward a Tandem CO2 Hydrogenation Process: On the Role and Fate of Heteroatoms (Mg, Si) in MAPO-18 Zeotypes 
    Cordero Lanzac, Tomas; Capel Berdiell, Izar; Airi, Alessia; Chung, Sang-Ho; Mancuso, Jenna; Redekop, Evgeniy; Fabris, Claudia; Figueroa-Quintero, Leidy; Navarro, Juan Carlos (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
    The tandem CO2 hydrogenation to hydrocarbons over mixed metal oxide/zeolite catalysts (OXZEO) is an efficient way of producing value-added hydrocarbons (platform chemicals and fuels) directly from CO2 via methanol intermediate ...
  • Trap-limited diffusion of Zn in β−Ga2O3 
    Hommedal, Ylva Knausgård; Frodason, Ymir Kalmann; Vines, Lasse; Johansen, Klaus Magnus H (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Diffusion of Zn in (001)- and (¯201)-oriented β−Ga2O3 was studied using secondary-ion mass spectrometry and first-principles calculations based on hybrid and semilocal functionals. The β−Ga2O3 samples were sealed in quartz ...
  • Trapping of active Brownian and run-and-tumble particles: A first-passage time approach 
    Moen, Emily Qing Zang; Olsen, Kristian Stølevik; Rønning, Jonas; Angheluta, Luiza (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    We use a first-passage time approach to study the statistics of the trapping times induced by persistent motion of active particles colliding with flat boundaries. The angular first-passage time distribution and mean ...
  • Trapping of multiple H atoms at the Ga(1) vacancy in b-Ga2O3 
    Fowler, W. Beall; Stavola, Michael; Qin, Ying; Weiser, Philip Michael (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Recent suggestions that hydrogen incorporation at the Ga(1) vacancy in β-Ga2O3 may have an impact on its electronic properties have led us to extend our earlier work on these defects. While our previous work provides strong ...
  • Truth is, we all are transients: A perspective on the time-dependent nature of reactions and those who study them 
    Redekop, Evgeniy; Yablonsky, Gregory S.; Gleaves, John T. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Understanding and mastery of Transient Kinetics in the context of multi-scale transport-reaction systems employed in catalysis is one of the ultimate frontiers in chemical science and engineering. In this perspective, we ...
  • Tuning defect-related optical bands by channeling implants in semiconductors 
    Azarov, Alexander; Galeckas, Augustinas; Ling, Francis Chi-Chung; Kuznetsov, Andrej (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2023)
    Abstract Ion implantation is an excellent method to introduce defects into semiconductors, extending their functionalities in a controllable way. Herein, we investigated an option to use crystallographically ...
  • Tuning electrical properties in Ga2O3 polymorphs induced with ion beams 
    Polyakov, A.Y.; Kochkova, A.I.; Azarov, Alexander; Venkatachalapathy, Vishnukanthan; Miakonkikh, A.V.; Vasilev, A.A.; Chernykh, A.V.; Shchemerov, I.V.; Romanov, A.A.; Kuznetsov, Andrej; Pearton, S.J. (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2023)
    Ion beam fabrication of metastable polymorphs of Ga2O3, assisted by the controllable accumulation of the disorder in the lattice, is an interesting alternative to conventional deposition techniques. However, the adjustability ...
  • Tuning the Casimir-Lifshitz force with gapped metals 
    Boström, Mathias; Rizwan Khan, M.; Gopidi, H. R.; Brevik, Iver Håkon; Li, Y.; Persson, Clas; Malyi, O. I. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    The Casimir-Lifshitz interaction, a long-range force that arises between solids and molecules due to quantum fluctuations in electromagnetic fields, has been widely studied in solid-state physics. The degree of polarization ...
  • Tuning the Magnetically Segregated Nanolayering in Mn–Ni–As Intermetallics 
    Gonano, Bruno Raymond Gino; Fjellvåg, Øystein; Steciuk, Gwladys; Guillou, Francois; Saha, Dipankar; Pelloquin, Denis; Fjellvåg, Helmer (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    2D materials exhibiting alternating ferro- and non-ferromagnetic layers are highly sought due to their potential for applications. In this work, we demonstrate, through the use of robust methodology, the existence of ...
  • Tuning the material and catalytic properties of SUZ-4 zeolites for the conversion of methanol or methane 
    Dyballa, Michael Martin; Pappas, Dimitrios; Borfecchia, Elisa; Beato, Pablo; Olsbye, Unni; Lillerud, Karl Petter; Arstad, Bjørnar; Svelle, Stian (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
    This work describes the synthesis and investigation of improved SUZ-4 catalysts (SZR framework) and their application in methanol-to-olefins and methane-to-methanol conversion. We report boron containing, dealuminated and ...
  • Twinning in Zr-Based Metal-Organic Framework Crystals 
    Øien-Ødegaard, Sigurd; Lillerud, Karl Petter (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Ab initio structure determination of new metal-organic framework (MOF) compounds is generally done by single crystal X-ray diffraction, but this technique can yield incorrect crystal structures if crystal twinning is ...
  • Two different approaches of microbial community structure characterization in riverine epilithic biofilms under multiple stressors conditions: Developing molecular indicators 
    Pin, Lorenzo; Eiler, Alexander; Fazi, Stefano; Friberg, Nikolai (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Microbial communities are major players in the biogeochemical processes and ecosystem functioning of river networks. Despite their importance in the ecosystem, biomonitoring tools relying on prokaryotes are still lacking. ...
  • Two-Step Dry Gel Method Produces MgAPO-11 with Low Aspect Ratio and Improved Catalytic Performance in the Conversion of Methanol to Hydrocarbons 
    Zhang, Lina; Firth, Daniel Sean; Olsbye, Unni; Bao, Xiaojun (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    In this article, the synthesis, characterization and catalytic performance of three MgAPO-11 catalysts with distinct crystal morphologies (sunflower, ball and candy) are presented. Among the three samples, the candy-like ...