• Effects of Oxygen Mobility in La-Fe-Based Perovskites on the Catalytic Activity and Selectivity of Methane Oxidation 

  Chang, Hui; Bjørgum, Erlend; Mihai, Oana; Yang, Jie; Lein, Hilde Lea; Grande, Tor; Raaen, Steinar; Zhu, Yi-an; Holmen, Anders; Chen, De (Peer reviewed; Journal article, 2020)

  The mechanism and structure requirements of selective and total oxidation of methane in a chemical looping process are both experimentally and theoretically examined on La1–xSrxFeO3−δ (x = 0, 0.2, and 0.5) and La0.5Sr0.5 ...

• A combined fluid-dynamic and thermodynamic model to predict the onset of rapid phase transitions in LNG spills 

  Lervåg, Karl Yngve; Skarsvåg, Hans Langva; Aursand, Eskil; Ouassou, Jabir Ali; Hammer, Morten; Reigstad, Gunhild Allard; Ervik, Åsmund; Fyhn, Eirik Holm; Gjennestad, Magnus Aashammer; Aursand, Peder; Wilhelmsen, Øivind (Peer reviewed; Journal article, 2020)

  Transport of liquefied natural gas (LNG) by ship occurs globally on a massive scale. The large temperature difference between LNG and water means LNG will boil violently if spilled onto water. This may cause a physical ...

• SiC crystalline micro bullets on bio-carbon based charcoal substrate 

  Jayakumari, Sethulakshmy; Vullum, Per Erik; Van Helvoort, Antonius; Tangstad, Merete (Peer reviewed; Journal article, 2020)

  Silicon carbide (SiC) micro bullets were grown on a bio-carbon based charcoal substrate, the morphology and crystal structure were analyzed. In order to collect the crystallographic details scanning electron microscopy ...

• High-energy astrophysical neutrinos from interactions in the Local Bubble 

  Kachelriess, Michael; Semikoz, Dimitry; Bouyahiaoui, Makarim (Journal article; Peer reviewed, 2020)

  A signal of high-energy extraterrestrial neutrinos was discovered by the IceCube experiment [1]. Neutrinos are always produced together with gamma-rays, but the gamma-ray flux from extra- galactic sources cascade down to ...

• Condensates and pressure of two-flavor chiral perturbation theory at nonzero isospin and temperature 

  Andersen, Jens Oluf; Mojahed, Martin Aria; Adhikari, Prabal (Peer reviewed; Journal article, 2021)

  We consider two-flavor chiral perturbation theory (χPT) at finite isospin chemical potential μI and finite temperature T . We calculate the effective potential and the quark and pion condensates as functions of T and μI ...

• The Impact of Thermal History on Water Adsorption in a Synthetic Nanolayered Silicate with Intercalated Li+ or Na+ 

  Michels Brito Miranda, Leander Edward; Fonesca, C. L. S. da; Méheust, Y.; Altoé, M. A. S.; Santos, E. C. dos; Grassi, G.; Droppa Jr., R.; Knudsen, Kenneth Dahl; Cavalcanti, Leide Passos; Hunvik, Kristoffer William Bø; Fossum, Jon Otto; Silva, G.J. da; Bordallo, H. N. (Peer reviewed; Journal article, 2020)

  For applications benefitting from the swelling properties of nanolayered silicates (clay minerals), it is of paramount importance to understand the hysteresis in the clay–water interaction. In this context, the present ...

• Reconfigurable Mechanical Anisotropy in Self-Assembled Magnetic Superstructures 

  Håkonsen, Verner; Singh, Gurvinder; De Toro, Jose Angel; Normile, Peter S; Wahlström, Erik; He, Jianying; Zhang, Zhiliang (Peer reviewed; Journal article, 2021)

  Enhancement of mechanical properties in self-assembled superstructures of magnetic nanoparticles is a new emerging aspect of their remarkable collective behavior. However, how magnetic interactions modulate mechanical ...

• Single scattering of polarized light by correlated surface and volume disorder 

  Banon, Jean-Philippe Armand; Simonsen, Ingve; Carminati, Remi (Peer reviewed; Journal article, 2020)

  We study light scattering by systems combining randomly rough surface and volume dielectric fluctuations. We introduce a general model including correlations between surface and volume disorders, and we study the scattering ...

• Extracellular vesicles in patients in the acute phase of psychosis and after clinical improvement: an explorative study 

  Tunset, Mette Elise; Haslene-Hox, Hanne; Bossche, Tim Van Den; Vaaler, Arne; Sulheim, Einar; Kondziella, Daniel (Peer reviewed; Journal article, 2020)

  Extracellular vesicles (EVs) are cell-derived structures that transport proteins, lipids and nucleic acids between cells, thereby affecting the phenotype of the recipient cell. As the content of EVs reflects the status of ...

• Climatological Westward‐Propagating Semidiurnal Tides and Their Composite Response to Sudden Stratospheric Warmings in SuperDARN and SD‐WACCM‐X 

  Zhang, Z.; Limpasuvan, Varavut; Orsolini, Yvan J.; Espy, Patrick Joseph; Hibbins, Robert (Peer reviewed; Journal article, 2021)

  Using the Super Dual Auroral Radar Network observations (clustered around 60°N) and NCAR CESM2.0 extended Whole Atmosphere Community Climate Model nudged with reanalyzes, we examine the climatology of semidiurnal tides in ...

• Alternative coalescence model for deuteron, tritium, helium-3 and their antinuclei 

  Kachelriess, Michael; Ostapchenko, Sergey; Tjemsland, Jonas (Peer reviewed; Journal article, 2020)

  Antideuteron and antihelium nuclei have been proposed as a detection channel for dark matter annihilations and decays in the Milky Way, due to the low astrophysical background expected. To estimate both the signal for ...

• Reacceleration of charged dark matter 

  Kachelriess, Michael; Tjemsland, Jonas (Peer reviewed; Journal article, 2020)

  Charged particles scattering on moving inhomogenities of the magnetised interstellar medium can gain energy through the process of second-order Fermi acceleration. This energy gain depletes in turn the magnetic wave spectrum ...

• Effect of Acoustic Radiation Force on the Distribution of Nanoparticles in Solid Tumors. 

  Afadzi, Mercy; Myhre, Ola Finneng; Yemane, Petros Tesfamichael; Bjørkøy, Astrid; Torp, Sverre Helge; van Wamel, Annemieke; Lelu, Sylvie; Angelsen, Bjørn Atle Johan; Davies, Catharina de Lange (Peer reviewed; Journal article, 2020)

  Acoustic radiation force (ARF) might improve the distribution of nanoparticles (NPs) in tumors. To study this, tumors growing subcutaneously in mice were exposed to focused ultrasound (FUS) either 15 min or 4 h after the ...

• Revisiting cosmic ray antinuclei fluxes with a new coalescence model 

  Kachelriess, Michael; Ostapchenko, Sergey; Tjemsland, Jonas (Peer reviewed; Journal article, 2020)

  Antideuteron and antihelium nuclei have been proposed as promising detection channels for dark matter because of the low astrophysical backgrounds expected. To estimate both potential exotic contributions and their ...

• Conductivity control via minimally invasive anti-Frenkel defects in a functional oxide 

  Evans, Donald; Holstad, Theodor Secanell; Mosberg, Aleksander Buseth; Småbråten, Didrik Rene; Vullum, Per Erik; Dadlani, Anup; Shapovalov, Konstantin; Yan, Zewu; Bourret, Edith; Gao, David Zhe; Akola, Jaakko; Torgersen, Jan; Van Helvoort, Antonius; Selbach, Sverre Magnus; Meier, Dennis (Peer reviewed; Journal article, 2020)

  Utilizing quantum effects in complex oxides, such as magnetism, multiferroicity and superconductivity, requires atomic-level control of the material’s structure and composition. In contrast, the continuous conductivity ...

• Biological lipid nanotubes and their potential role in evolution 

  Gözen, Irep; Dommersnes, Paul Gunnar (Peer reviewed; Journal article, 2020)

  The membrane of cells and organelles are highly deformable fluid interfaces, and can take on a multitude of shapes. One distinctive and particularly interesting property of biological membranes is their ability to from ...

• The unique hybrid precipitate in a peak-aged Al-Cu-Mg-Ag alloy 

  Gazizov, Marat; Boev, A.O.; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Holmestad, Randi; Kaibyshev, Rustam; Aksyonov, D.A.; Krasnikov, V.S. (Peer reviewed; Journal article, 2021)

  The prevalent hardening phase forming in an Al-Cu-Mg-Ag alloy after peak-aging at 150 and 190 °C has been investigated using transmission electron microscopy methods. The precipitate atomic structure was determined. It is ...

• A comparison of lab-scale free rotating wind turbines and actuator disks 

  Helvig, Sanne de Jong; Vinnes, Magnus Kyrkjebø; Segalini, Antonio; Worth, Nicholas; Hearst, R. Jason (Peer reviewed; Journal article, 2021)

  Planar particle image velocimetry was conducted upstream and in the near-wake of a lab-scale free-rotating wind turbine model and compared to several actuator disks with the same dimensions. The Reynolds number of the ...

• Copper enrichment on aluminium surfaces after electropolishing and its effect on electron imaging and diffraction 

  Wenner, Sigurd; Lervik, Adrian; Thronsen, Elisabeth; Marioara, Calin Daniel; Kubowicz, Stephan; Holmestad, Randi (Peer reviewed; Journal article, 2021)

  Electropolishing is the most common method of preparing samples of aluminium alloys for scanning and transmission electron microscopy, as it yields a good surface quality and large flat, electron-transparent areas. Like ...

• Combined Zeeman and orbital effect on the Josephson effect in rippled graphene 

  Fyhn, Eirik Holm; Amundsen, Morten; Zalic, Ayelet; Dvir, Tom; Steinberg, Hadar; Linder, Jacob (Peer reviewed; Journal article, 2020)

  The two-dimensional nature of graphene Josephson junctions offers the possibility of creating effective superconductor-ferromagnet-superconductor junctions with tunable Zeeman splitting caused by an in-plane magnetic field. ...

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