Browsing Det matematisk-naturvitenskapelige fakultet by Title

Now showing items 327-346 of 838

  • Geometric Stoichiometry: Unifying Concepts of Animal Nutrition to Understand How Protein-Rich Diets Can Be “Too Much of a Good Thing” 
    Anderson, Thomas R.; Raubenheimer, David; Hessen, Dag Olav (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Understanding the factors that control the growth of heterotrophic organisms is central to predicting food web interactions and biogeochemical cycling within ecosystems. We present a new framework, Geometric Stoichiometry ...
  • Gold(I) N-heterocyclic carbene precursors for focused electron beam-induced deposition 
    Glessi, Cristiano; Mahgoub, Aya; Hagen, Cornelis W.; Tilset, Mats (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Seven gold(I) N-heterocyclic carbene (NHC) complexes were synthesized, characterized, and identified as suitable precursors for focused electron beam-induced deposition (FEBID). Several variations on the core Au(NHC)X ...
  • Grain size sensitive creep during simulated seismic slip in nanogranular fault gouges: constraints from Transmission Kikuchi Diffraction (TKD) 
    Demurtas, Matteo; Smith, Steven A.F.; Prior, David J.; Brenker, Frank E.; Di Toro, Giulio (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    Nanograins (≪1 μm) are common in the principal slip zones of natural and experimental faults, but their formation and influence on fault mechanical behavior are poorly understood. We performed transmission Kikuchi diffraction ...
  • Granular porous landslide tsunami modelling – the 2014 Lake Askja flank collapse 
    Rauter, Matthias; Viroulet, Sylvain; Gylfadóttir, Sigríður Sif; Fellin, Wolfgang; Løvholt, Finn (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Subaerial landslides and volcano flank collapses can generate tsunamis with devastating consequences. The lack of comprehensive models incorporating both the landslide and the wave mechanics represents a gap in providing ...
  • Gravitational and Finite-Size Effects On Pressure Saturation Curves During Drainage 
    Ayaz, Monem; Toussaint, Renaud; Schäfer, Gerhard; Måløy, Knut Jørgen (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    We experimentally and numerically study the influence of gravity and finite-size effects on the pressure-saturation relationship in a given porous medium during slow drainage. The effect of gravity is systematically varied ...
  • H passivation of Li on Zn-site in ZnO: Positron annihilation spectroscopy and secondary ion mass spectrometry 
    Johansen, Klaus Magnus H; Zubiaga, Asier; Tuomisto, Filip; Monakhov, Edouard; Kuznetsov, Andrej; Svensson, Bengt Gunnar (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2011)
    The interaction of hydrogen (H) with lithium (Li) and zinc vacancies (VZn) in hydrothermally grown n-type zinc oxide (ZnO) has been investigated by positron annihilation spectroscopy (PAS) and secondary ion mass spectrometry. ...
  • Hall effect measurements on thermoelectric Ca3Co4O9: On how to determine the charge carrier concentration in strongly correlated misfit cobaltites 
    Schrade, Matthias; Norby, Truls; Finstad, Terje (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    The Hall coefficient RH and electrical conductivity of misfit calcium cobalt oxide (Ca2CoO3−δ)q(CoO2) (CCO) were measured at room temperature for different oxygen vacancy concentrations δ. Based on these and numerous ...
  • Heritability Estimation of Cognitive Phenotypes in the ABCD Study® Using Mixed Models 
    Smith, Diana M.; Loughnan, Robert; Friedman, Naomi P.; Parekh, Pravesh; Frei, Oleksandr; Thompson, Wesley K.; Andreassen, Ole; Neale, Michael; Jernigan, Terry L.; Dale, Anders M. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Abstract Twin and family studies have historically aimed to partition phenotypic variance into components corresponding to additive genetic effects ( A ), common environment ( C ), and unique environment ( E ). Here we ...
  • hGSuite HyperBrowser: A web-based toolkit for hierarchical metadata-informed analysis of genomic tracks 
    Kalyanasundaram, Sumana; Lefol, Yohan Pierre; Gundersen, Sveinung; Rognes, Torbjørn; Alsøe, Lene; Nilsen, Hilde; Hovig, Eivind; Sandve, Geir Kjetil Ferkingstad; Domanska, Diana (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Many high-throughput sequencing datasets can be represented as objects with coordinates along a reference genome. Currently, biological investigations often involve a large number of such datasets, for example representing ...
  • High electron mobility single-crystalline ZnSnN2 on ZnO (0001) substrates 
    Gogova, Daniela; Olsen, Vegard Skiftestad; Bazioti, Kalliopi; Lee, In-Hwan; Prytz, Øystein; Vines, Lasse; Kuznetsov, Andrej (Journal article / Tidsskriftartikkel / SubmittedVersion, 2020)
    Making a systematic effort, we have developed single-crystalline ZnSnN2 on ZnO (0001) by reactive magnetron co-sputtering. Epitaxial growth was achieved at 350 °C by co-sputtering from metal targets in a nitrogen atmosphere, ...
  • High entropy alloy CrFeNiCoCu sputter deposited films: Structure, electrical properties, and oxidation 
    Mayandi, Jeyanthinath; Schrade, Matthias; Vajeeston, Ponniah; Stange, Marit Synnøve Sæverud; Lind, Anna Maria; Sunding, Martin Fleissner; Deuermeier, Jonas; Fortunato, Elvira; Løvvik, Ole Martin; Ulyashin, Alexander; Diplas, Spyridon; Almeida Carvalho, Patricia; Finstad, Terje Gunnar (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2022)
    High entropy alloy (HEA) films of CrFeCoNiCu were deposited by sputtering. Their structure was characterized and their electric transport properties were studied by temperature-dependent Hall and Seebeck measurements. The ...
  • High mobility of intrinsic defects in α-Ga2O3 
    Azarov, Alexander; Park, Ji-Hyeon; Jeon, Dae-Woo; Kuznetsov, Andrej (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2023)
    Migration properties of the intrinsic defects were investigated in α-Ga2O3 by controllable introduction of the lattice disorder with ion irradiation and monitoring its evolution as a function of ion dose, flux, and ...
  • High performance and toxicity assessment of Ta3N5 nanotubes for photoelectrochemical water splitting 
    Xu, Kaiqi; Chatzitakis, Athanasios Eleftherios; Risbakk, Sanne; Yang, Mingyi; Backe, Paul Hoff; Grandcolas, Mathieu; Bjørås, Magnar; Norby, Truls Eivind (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    In this work, Co-based cocatalysts are electrodeposited on mesoporous Ta3N5 nanotubes. The electrodeposition time is varied and the optimized photoelectrode reaches a photocurrent density of 6.3 mA/cm2 at 1.23 V vs. SHE, ...
  • High Performance Predictable Quantum Efficient Detector Based on Induced-Junction Photodiodes Passivated with SiO2/SiNx 
    Koybasi, Ozhan; Nordseth, Ørnulf; Tran, Trinh; Povoli, Marco; Rajteri, Mauro; Pepe, Carlo; Bardalen, Eivind; Manoocheri, Farshid; Summanwar, Anand; Korpusenko, Mikhail; Getz, Michael Norderhaug; Ohlckers, Per; Ikonen, Erkki; Gran, Jarle (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    We performed a systematic study involving simulation and experimental techniques to develop induced-junction silicon photodetectors passivated with thermally grown SiO2 and plasma-enhanced chemical vapor deposited (PECVD) ...
  • High power iron phosphate cathodes by atomic layer deposition 
    Brennhagen, Anders; Kvamme, Kristian Breivik; Sverdlilje, Katja S. S.; Nilsen, Ola (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Amorphous thin films of FePO4 and Fe4(P2O7)3 show excellent power capabilities and good stability as cathode materials in Li-ion batteries. Within our tested range of materials, 10 nm FePO4 shows the best results and can ...
  • High temperature transport properties of thermoelectric CaMnO3-d - Indication of strongly interacting small polarons 
    Schrade, Matthias; Kabir, Rezaul; Li, Sean; Norby, Truls; Finstad, Terje (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
    The conductivity and Seebeck coefficient of CaMnO3−δ have been studied at temperatures up to 1000 °C and in atmospheres with controlled oxygen partial pressure. Both transport coefficients were varied in situ by the ...
  • High versus low energy ion irradiation impact on functional properties of PLD-grown alumina coatings 
    Zaborowska, A.; Kurpaska, L.; Wyszkowska, E.; Azarov, Alexander; Turek, M.; Kosińska, A.; Frelek-Kozak, M.; Jagielski, J. (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2023)
    It is well known that ion irradiation can be successfully used to reproduce microstructural features triggered by neutron irradiation. Even though the irradiation process brings many benefits, it is also associated with ...
  • High-stress creep preceding coseismic rupturing in amphibolite-facies ultramylonites 
    Papa, Simone; Pennacchioni, Giorgio; Menegon, Luca; Thielmann, Marcel (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
    Coeval pseudotachylytes (solidified melts produced during seismic slip) and mylonites are generally regarded as the geological record of transient seismic events during dominant ductile flow. Thermal runaway has been ...
  • High-Temperature Structural and Electrical Properties of BaLnCo2O6 Positrodes 
    Szpunar, Iga; Strandbakke, Ragnar; Sørby, Magnus Helgerud; Wachowski, Sebastian Lech; Balaguer, Maria; Tarach, Mateusz; Serra, José M.; Witkowska, Agnieszka; Dzik, Ewa; Norby, Truls Eivind; Gazda, Maria; Mielewczyk-Gryń, Aleksandra (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    The application of double perovskite cobaltites BaLnCo2O6−δ (Ln = lanthanide element) in electrochemical devices for energy conversion requires control of their properties at operating conditions. This work presents a study ...
  • Highly Correlated Hydride Ion Tracer Diffusion in SrTiO3–xHx Oxyhydrides 
    Liu, Xin; Bjørheim, Tor Svendsen; Vines, Lasse; Fjellvåg, Øystein; Granerød, Cecilie Skjold; Prytz, Øystein; Yamamoto, Takafumi; Kageyama, Hiroshi; Norby, Truls Eivind; Haugsrud, Reidar (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
    Mixed oxide hydride anion systems constitute a novel class of materials exhibiting intriguing properties such as solid-state hydride ion conduction and fast anion exchange. In this contribution we derive the kinetics of ...