Browsing Fysisk institutt by Title

Now showing items 1311-1330 of 3672

  • Ice particles sink below the water surface due to a balance of salt, van der Waals and buoyancy forces 
    Thiyam, Priyadarshini; Fiedler, Johannes; Buhmann, Stefan Yoshi; Persson, Clas; Brevik, Iver Håkon; Boström, Mathias; Parsons, Drew F. (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
    According to the classical Archimedes’ principle, ice floats in water and has a fraction of its volume above the water surface. However, for very small ice particles, other competing forces such as van der Waals forces due ...
  • Identification and characterization of deep nitrogen acceptors in β-Ga2O3 using defect spectroscopies 
    Ghadi, Hemant; McGlone, Joe F.; Cornuelle, Evan; Senckowski, Alexander; Sharma, Shivam; Wong, Man Hoi; Singisetti, Uttam; Frodason, Ymir Kalmann; Peelaers, Hartwin; Lyons, John; Varley, Joel Basile; Van de Walle, Chris G.; Arehart, Aaron; Ringel, Steven A. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    The ability to achieve highly resistive beta-phase gallium oxide (β-Ga2O3) layers and substrates is critical for β-Ga2O3 high voltage and RF devices. To date, the most common approach involves doping with iron (Fe), which ...
  • Identification and Suppression of Majority Surface States in the Dry-Etched β-Ga2O3 
    Wang, Zhengpeng; Yu, Xinxin; Gong, Hehe; Hu, Tiancheng; Zhang, Yijun; Ji, Xiaoli; Ren, Fangfang; Gu, Shulin; Zheng, Youdou; Zhang, Rong; Kuznetsov, Andrej; Ye, Jiandong (Journal article / Tidsskriftartikkel / SubmittedVersion, 2022)
    Surface treatment after dry etching is vital to enhance the surface quality of the material and thus improve device performance. In this Letter, we identified the majority surface states induced by the dry etching of β-Ga2O3 ...
  • Identification and tracking of extreme electron densities by EISCAT Svalbard radar and SuperDARN 
    Barth, Vigdis Lonar (Master thesis / Masteroppgave, 2009)
  • Identification of boosted Higgs bosons decaying into b-quark pairs with the ATLAS detector at √s=13 TeV 
    Aad, Georges; Abbott, Brad; Abbott, Dale C.; Abdinov, Ovsat Bahram oglu; Abed Abud, Adam; Abeling, Kira; Abhayasinghe, Deshan Kavishka; Abidi, Syed Haider; AbouZeid, Hass; Abraham, Nadine L.; Bjørke, Kristian; Bugge, Magnar Kopangen; Cameron, David Gordon; Catmore, James Richard; Feigl, Simon; Garonne, Vincent; Gramstad, Eirik; Hellesund, Simen; Morisbak, Vanja; Oppen, Henrik; Ould-Saada, Farid; Pedersen, Maiken; Read, Alexander Lincoln; Røhne, Ole Myren; Sandaker, Heidi; Vadla, Knut Oddvar Høie; Buanes, Trygve; Djuvsland, Julia Isabell; Eigen, Gerald; Fomin, Nikolai; Lee, Graham Richard; Lipniacka, Anna; Martin dit Latour, Bertrand; Mæland, Steffen; Stugu, Bjarne; Træet, Are Sivertsen; Abramowicz, Halina; Abreu, Henso; Abulaiti, Yiming; Acharya, Bobby S.; Achkar, Baida; Adachi, Shunsuke; Adam, Lennart; Adam-Bourdarios, Claire; Adamczyk, Leszek; Adamek, Lukas; Adelman, Jareed; Adersberger, Michael; Adigüzel, Aytül; Adorni, Sofia; ATLAS, Collaboration (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
    This paper describes a study of techniques for identifying Higgs bosons at high transverse momenta decaying into bottom-quark pairs, H → bb¯, for proton–proton collision data collected by the ATLAS detector at the Large ...
  • Identification of high-spin proton configurations in 136Ba and 137Ba 
    Kaya, L.; Vogt, A; Reiter, P; Müller-Gatermann, C.; Gargano, A; Coraggio, L; Itaco, N; Blazhev, A; Arnswald, K.; Bazzacco, D; Birkenbach, B; Bracco, A; Bruyneel, B; Corradi, L; Crespi, F.C.L.; De Angelis, G; Droste, M.; Eberth, J; Farnea, E; Fioretto, E; Fransen, C; Gadea, A; Giaz, A; Görgen, Andreas; Gottardo, A; Hadynska-Klek, Katarzyna; Hess, H; Hetzenegger, R.; Hirsch, R; John, P.R.; Jolie, J; Jungclaus, A; Korten, W; Leoni, S; Lewandowski, L.; Lunardi, S; Menegazzo, R; Mengoni, D; Michelagnoli, C; Mijatovic, T; Montagnoli, G; Montanari, D; Napoli, D; Podolyák, Zs; Pollarolo, G; Recchia, F; Rosiak, D.; Saed-Samii, N.; Sahin, Eda; Siciliano, M; Scarlassara, F; Seidlitz, M; Söderström, P.-A.; Stefanini, AM; Stezowski, O; Szilner, S; Szpak, B; Ur, C; Valiente-Dobón, JJ; Weinert, M; Wolf, K; Zell, KO (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    The high-spin structures of 136 Ba and 137 Ba are investigated after multinucleon-transfer (MNT) and fusion-evaporation reactions. 136 Ba is populated in a 136 Xe + 238 U MNT reaction employing the high-resolution ...
  • Identification of LiNi and VNi acceptor levels in doped nickel oxide 
    Karsthof, Robert Michael; von Wenckstern, Holger; Olsen, Vegard Skiftestad; Grundmann, Marius (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Nickel oxide, in particular in its doped, semiconducting form, is an important component of several optoelectronic devices. Doped NiO is commonly achieved either by incorporation of lithium, which readily occupies Ni sites ...
  • Identification of substitutional Li in n-type ZnO and its role as an acceptor 
    Johansen, K. M.; Zubiaga, A.; Makkonen, I.; Tuomisto, F.; Neuvonen, P. T.; Knutsen, K. E.; Monakhov, E. V.; Kuznetsov, A. Yu.; Svensson, B. G. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2011)
    Monocrystalline n-type zinc oxide (ZnO) samples prepared by different techniques and containing various amounts of lithium (Li) have been studied by positron annihilation spectroscopy (PAS) and secondary ion mass spectrometry. ...
  • Identifying chemical and physical changes in wide-gap semiconductors using real-time and near ambient-pressure XPS 
    Astley, Simon; Hu, Di; Hazeldine, Kerry; Ash, Johnathan; Cross, Rachel E.; Cooil, Simon Phillip; Allen, Martin W.; Evans, James; James, Kelvin; Venturini, Federica; Grinter, David C.; Ferrer, Pilar; Arrigo, Rosa; Held, Georg; Williams, Gruffudd T.; Evans, D. Andrew (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Photoelectron spectroscopy is a powerful characterisation tool for semiconductor surfaces and interfaces, providing in principle a correlation between the electronic band structure and surface chemistry along with quantitative ...
  • Identifying features predictive of faculty integrating computation into physics courses 
    Young, Nicholas; Allen, Grant; Aiken, John Mark; Henderson, Rachel; Caballero, Marcos Daniel (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    Computation is a central aspect of 21st century physics practice; it is used to model complicated systems, to simulate impossible experiments, and to analyze mountains of data. Physics departments and their faculty are ...
  • Identifying Magnetic Phases in Additively Manufactured High-Entropy Alloy FeCoNiAlxMnx 
    Larsen, Aleksander; Poulia, Anthoula; S. Azar, Amin; Bazioti, Kalliopi; Almeida Carvalho, Patricia; Gunnæs, Anette Eleonora; Belle, Branson; Diplas, Spyridon; Mikheenko, Pavlo (Chapter / Bokkapittel / SubmittedVersion, 2021)
    High-Entropy Alloys are advanced technological materials composed of several (typically five) elements in nearly equal atomic concentration. By forming these alloys, previously unknown phase fields of multidimensional phase ...
  • Ikke-lineær tilstandsestimering 
    Skjolddal, Lena (Master thesis / Masteroppgave, 2012)
    Denne masteravhandlingen tar for seg generell Bayesestimering og numerisk implementasjon for denne. Variablene og fordelingene er sett på i lys av navigasjonsterminologi. Tilstandene og observasjonene ...
  • Image De-Quantization Using Plate Bending Model 
    Völgyes, David; Martinsen, Anne Catrine Trægde; Stray-Pedersen, Arne; Waaler, Dag; Pedersen, Marius (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    Discretized image signals might have a lower dynamic range than the display. Because of this, false contours might appear when the image has the same pixel value for a larger region and the distance between pixel levels ...
  • Image quality with iterative reconstruction techniques in CT of the lungs?A phantom study 
    Andersen, Hilde Kjernlie; Volgyes, David; Martinsen, Anne Catrine Trægde (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    Background: Iterative reconstruction techniques for reducing radiation dose and improving image quality in CT have proved to work differently for different patient sizes, dose levels, and anatomical areas. Purpose: This ...
  • Image texture and radiation dose properties in CT 
    Możejko, Dawid; Andersen, Hilde Kjernlie; Pedersen, Marius; Waaler, Dag; Martinsen, Anne Catrine Trægde (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
    The aim of this study was to compare image noise properties of GE Discovery HD 750 and Toshiba Aquilion ONE. The uniformity section of a Catphan 600 image quality assurance phantom was scanned with both scanners, at different ...
  • Image-based terrain characterization for autonomous vehicles, based on deep learning 
    Hagen, Andreas (Master thesis / Masteroppgave, 2019)
  • Imaging defect complexes in scanning transmission electron microscopy: Impact of depth, structural relaxation, and temperature investigated by simulations 
    Aarholt, Thomas; Frodason, Ymir Kalmann; Prytz, Øystein (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
  • Imaging Flux Avalanches in V 3 Si Superconducting Thin Films 
    Pinheiro, Lincoln Brum Leite Gusmuo; Motta, Maycon; Colauto, Fabiano; Johansen, Tom Henning; Bellingeri, Emilio; Bernini, Cristina; Ferdeghini, Carlo; Ortiz, Wilson Aires (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
    When developing superconducting devices patterned on thin films, one should bear in mind that flux avalanches might occur for some materials at a certain window of applied fields and temperatures. Although the A15 ...
  • Imaging of 212Pb in mice with a clinical SPECT/CT 
    Kvassheim, Monika; Tornes, Anna J. K.; Juzeniene, Asta; Stokke, Caroline; Revheim, Mona-Elisabeth R. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
  • Imaging the Beams Eye View in External Beam Radiotherapy 
    Eilertsen, Karsten (Doctoral thesis / Doktoravhandling, 2012)