Browsing Fysisk institutt by Title

Now showing items 14-33 of 3666

  • A 1-μW Radiation-Hard Front-End in a 0.18-μm CMOS Process for the MALTA2 Monolithic Sensor 
    Piro, F.; Allport, P.; Asensi, I.; Berdalovic, I.; Bortoletto, D.; Buttar, C.; Cardella, Roberto Calogero; Charbon, E.; Dachs, F.; Dao, V.; Dobrijevic, D.; Dyndal, M.; Flores, L.; Freeman, P.; Gabrielli, A.; Gonella, L.; Kugathasan, T.; Leblanc, M.; Oyulmaz, K.; Pernegger, H.; Riedler, P.; Van Rijnbach, Rijnbach; Sandaker, Heidi; Sharma, A.; Solans, C.; Snoeys, W.; Suligoj, T.; Torres, J.; Worm, S. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    In this article, a low-power, radiation-hard front-end circuit for monolithic pixel sensors, designed to meet the requirements of low noise and low pixel-to-pixel variability, the key features to achieve high detection ...
  • A circuit for simultaneous measurements of skin electrical conductance, susceptance, and potential 
    Martinsen, Ørjan Grøttem; Kalvøy, Håvard; Bari, Dindar S.; Tronstad, Christian (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    A circuit is presented that enables measurement of skin electrical conductance, susceptance, and potential simultaneously beneath the same monopolar electrode. Example measurements are shown to confirm the function of the ...
  • A CMOS Multi-Electrode Array for Four-Electrode Bioimpedance Measurements 
    Nøvik, Steffen; Flø Drageseth, Magnus; Grøndalen, Magnus Børresen; Nilsen, Ola; Krauss, Stefan Johannes Karl; Martinsen, Ørjan Grøttem; Häfliger, Philipp Dominik (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    This work demonstrates how a multi-electrode array (MEA) dedicated to four-electrode bioimpedance measurements can be implemented on a complementary metal–oxide–semiconductor (CMOS) chip. As a proof of concept, an 8 × 8 ...
  • A coarse-grained phase-field crystal model of plastic motion 
    Salvalaglio, Marco; Angheluta, Luiza; Huang, Zhi-Feng; Voigt, Alex; Elder, Ken; Vinals, Jorge (Journal article / Tidsskriftartikkel / SubmittedVersion, 2020)
    The phase-field crystal model in an amplitude equation approximation is shown to provide an accurate description of the deformation field in defected crystalline structures, as well as of dislocation motion. We analyze in ...
  • A common [18F]-FDG PET radiomic signature to predict survival in patients with HPV-induced cancers 
    Niyoteka, Stephane; Seban, Romain-David; Rouhi, Rahimeh; Scarsbrook, Andrew; Genestie, Catherine; Classe, Marion; Carré, Alexandre; Sun, Roger; La Greca Saint-Esteven, Agustina; Chargari, Cyrus; McKenna, Jack; McDermott, Garry; Malinen, Eirik; Tanadini-Lang, Stephanie; Guckenberger, Matthias; Guren, Marianne; Lemanski, Claire; Deutsch, Eric; Robert, Charlotte (Journal article / Tidsskriftartikkel / SubmittedVersion, 2023)
    Locally advanced cervical cancer (LACC) and anal and oropharyngeal squamous cell carcinoma (ASCC and OPSCC) are mostly caused by oncogenic human papillomaviruses (HPV). In this paper, we developed machine learning (ML) ...
  • A computational model for gonadotropin releasing cells in the teleost fish medaka 
    Halnes, Geir; Tennøe, Simen; Haug, Trude; Einevoll, Gaute; Weltzien, Finn-Arne; Hodne, Kjetil (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    Pituitary endocrine cells fire action potentials (APs) to regulate their cytosolic Ca2+ concentration and hormone secretion rate. Depending on animal species, cell type, and biological conditions, pituitary APs are generated ...
  • A dataset of direct observations of sea ice drift and waves in ice 
    Rabault, Jean; Müller, Malte; Voermans, Joey; Brazhnikov, Dmitry; Turnbull, Ian; Marchenko, Aleksey; Biuw, Martin; Nose, Takehiko; Waseda, Takuji; Johansson, Malin; Breivik, Øyvind; Sutherland, Graig; Hole, Lars Robert; Johnson, Mark; Jensen, Atle; Gundersen, Olav; Kristoffersen, Yngve; Babanin, Alexander; Tedesco, Paulina Souza; Christensen, Kai Håkon; Kristiansen, Martin; Hope, Gaute; Kodaira, Tsubasa; Martins de Aguiar, Victor Cesar; Taelman, Catherine Cecilia A; Quigley, Cornelius Patrick; Filchuk, Kirill; Mahoney, Andrew R. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Variability in sea ice conditions, combined with strong couplings to the atmosphere and the ocean, lead to a broad range of complex sea ice dynamics. More in-situ measurements are needed to better identify the phenomena ...
  • A densely interconnected network for deep learning accelerated MRI 
    Ottesen, Jon André; Caan, Matthan; Groote, Inge Rasmus; Bjørnerud, Atle (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    To improve accelerated MRI reconstruction through a densely connected cascading deep learning reconstruction framework. Materials and methods A cascading deep learning reconstruction framework (reference model) was modified ...
  • A first glimpse at the shell structure beyond 54Ca: Spectroscopy of 55K, 55Ca, and 57Ca 
    Koiwai, T.; Wimmer, K.; Doornenbal, P.; Obertelli, A.; Barbieri, C.; Duguet, T.; Holt, J.D.; Miyagi, T.; Navrátil, P.; Ogata, K.; Shimizu, N.; Somà, V.; Utsuno, Y.; Yoshida, K.; Achouri, N.L.; Baba, H.; Browne, F.; Calvet, D.; Château, F.; Chen, S.; Chiga, N.; Corsi, A.; Cortés, M.L.; Delbart, A.; Gheller, J.-M.; Giganon, A.; Gillibert, A.; Hilaire, C.; Isobe, T.; Kobayashi, T.; Kubota, Y.; Lapoux, V.; Liu, H.N.; Motobayashi, T.; Murray, I.; Otsu, H.; Panin, V.; Paul, N.; Rodriguez, W.; Sakurai, H.; Sasano, M.; Steppenbeck, D.; Stuhl, L.; Sun, Y.L.; Togano, Y.; Uesaka, T.; Yoneda, K.; Aktas, O.; Aumann, T.; Chung, L.X.; Flavigny, F.; Franchoo, S.; Gasparic, I.; Gerst, R.-B.; Gibelin, J.; Hahn, K.I.; Kim, D.; Kondo, Y.; Koseoglou, P.; Lee, J.; Lehr, C.; Linh, B.D.; Lokotko, T.; MacCormick, M.; Moschner, K.; Nakamura, T.; Park, S.Y.; Rossi, D.; Sahin, Eda; Söderström, P.-A.; Sohler, D.; Takeuchi, S.; Toernqvist, H.; Vaquero, V.; Wagner, V.; Wang, S.; Werner, V.; Xu, X.; Yamada, H.; Yan, D.; Yang, Z.; Yasuda, M.; Zanetti, L. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
  • A global spectral-Galerkin investigation of a Rayleigh–Taylor instability in plasma using an MHD–Boussinesq model 
    Piterskaya, Anna; Miloch, Wojciech Jacek; Mortensen, Mikael (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    This paper presents a new efficient algorithm based on the spectral-Galerkin numerical approximations complemented by a magnetohydrodynamics–Boussinesq model and a new solver for studying the development of a Rayleigh–Taylor ...
  • A Hierarchy of Non-Equilibrium Two-Phase Flow Models 
    Linga, Gaute; Flåtten, Tore Halsne (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    We review and extend a hierarchy of relaxation models for two-phase flow. The models are derived from the non-equilibrium Baer–Nunziato model, which is endowed with relaxation source terms to drive it towards equilibrium. ...
  • A high-granularity digital tracking calorimeter optimized for proton CT 
    Alme, Johan; Barnaföldi, Gergely Gábor; Barthel, Rene; Borshchov, Vyacheslav; Bodova, Tea; van den Brink, Anthony; Brons, Stephan; Chaar, Mamdouh; Eikeland, Viljar Nilsen; Feofilov, Grigory; Genov, Georgi; Grimstad, Silje; Grøttvik, Ola Slettevoll; Helstrup, Håvard; Herland, Alf Kristoffer; Hilde, Annar Eivindplass; Igolkin, Sergey; Keidel, Ralf; Kobdaj, Chinorat; van der Kolk, Naomi; Listratenko, Oleksandr; Malik, Qasim Waheed; Mehendale, Shruti Vineet; Meric, Ilker; Nesbø, Simon Voigt; Odland, Odd Harald; Papp, Gábor; Peitzmann, Thomas; Pettersen, Helge Egil Seime; Piersimoni, Pierluigi; Protsenko, Maksym; Rehman, Attiq Ur; Richter, Matthias; Røhrich, Dieter; Samnøy, Andreas Tefre; Seco, Joao; Setterdahl, Lena; Shafiee, Hesam; Skjolddal, Øistein Jelmert; Solheim, Emilie Haugland; Songmoolnak, Arnon; Sudár, Ákos; Sølie, Jarle Rambo; Tambave, Ganesh Jagannath; Tymchuk, Ihor; Ullaland, Kjetil; Underdal, Håkon Andreas; Varga-Kofarago, Monika; Volz, Lennart; Wagner, Boris; Widerøe, Fredrik Mekki; Xiao, RenZheng; Yang, Shiming; Yokoyama, Hiroki (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    A typical proton CT (pCT) detector comprises a tracking system, used to measure the proton position before and after the imaged object, and an energy/range detector to measure the residual proton range after crossing the ...
  • A highly active and reusable multicomponent high entropy metal oxide catalyst for nitroarenes hydrogenation 
    Soltani, Nayereh; Rahman, Jamil Ur; Almeida Carvalho, Patricia; Finstad, Terje Gunnar (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Abstract It is well known that multicomponent catalysts can improve catalytic performance, however their rational design and precise control of catalytic activities by varying the composition of the elements is challenging. ...
  • A hybrid, asymmetric, linear Higgs factory based on plasma-wakefield and radio-frequency acceleration 
    Foster, Brian; D'Arcy, Richard; Lindstrøm, Carl A. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    The construction of an electron–positron collider 'Higgs factory' has been stalled for a decade, not because of feasibility but because of the cost of conventional radio-frequency (RF) acceleration. Plasma-wakefield ...
  • A measurement of the calorimeter response to single hadrons and determination of the jet energy scale uncertainty using LHC Run-1 pp-collision data with the ATLAS detector 
    Aaboud, Morad; Aad, Georges; Abbott, Brad; Abdallah, J.; Abdinov, Ovsat Bahram oglu; Abeloos, Baptiste; Aben, Rosemarie; AbouZeid, Hass; Abraham, Nadine L.; Abramowicz, Halina; Abreu, Henso; Buanes, Trygve; Dale, Ørjan; Eigen, Gerald; Kastanas, Alex; Liebig, Wolfgang; Lipniacka, Anna; Martin dit Latour, Bertrand; Mæland, Steffen; Smestad, Lillian; Stugu, Bjarne; Yang, Zongchang; Zalieckas, Justas; Bugge, Magnar Kopangen; Cameron, David Gordon; Catmore, James Richard; Feigl, Simon; Franconi, Laura; Garonne, Vincent; Gjelsten, Børge Kile; Gramstad, Eirik; Morisbak, Vanja; Nilsen, Jon Kerr; Ould-Saada, Farid; Pajchel, Katarina; Pedersen, Maiken; Raddum, Silje Hattrem; Read, Alexander Lincoln; Røhne, Ole Myren; Sandaker, Heidi; Serfon, Cédric; Stapnes, Steinar; Strandlie, Are; Abreu, Rômulo F.; Acharya, Bobby S.; Adamczyk, Leszek; Adams, David; Adelman, Jareed; Adomeit, Stefanie; Adye, Tim; Affolder, Anthony Allen; ATLAS, Collaboration (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
  • A modified dividing local Gaussian processes algorithm for theoretical particle physics applications 
    Lohrmann, Timo; Kvellestad, Anders; De Bin, Riccardo (Chapter / Bokkapittel / PublishedVersion; Peer reviewed, 2022)
    We explore the use of dividing local Gaussian processes in the context of theoretical particle physics. We adapt an existing algorithm to the specific problem, trading some speed for a better precision. An intensive ...
  • A multiparameter model for non-invasive detection of hypoglycemia 
    Elvebakk, Ole; Tronstad, Christian; Birkeland, Kåre I.; Jenssen, Trond Geir; Bjørgaas, Marit Ragnhild Rokne; Gulseth, Hanne Løvdal; Kalvøy, Håvard; Høgetveit, Jan Olav; Martinsen, Ørjan Grøttem (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
    Objective: Severe hypoglycemia is the most serious acute complication for people with type 1 diabetes (T1D). Approximately 25% of people with T1D have impaired ability to recognize impending hypoglycemia, and nocturnal ...
  • A new approach to the inverse problem for current mapping in thin-film superconductors 
    Zuber, Johannes; Wells, Frederick S.; Fedoseev, Sergey A.; Johansen, Tom Henning; Rosenfeld, Anatoly B.; Pan, Alexey (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    A novel mathematical approach has been developed to complete the inversion of the Biot-Savart law in one- and two-dimensional cases from measurements of the perpendicular component of the magnetic field using the well-developed ...
  • A new software implementation of the Oslo method with rigorous statistical uncertainty propagation 
    Midtbø, Jørgen Eriksson; Zeiser, Fabio; Lima, Erlend; Larsen, Ann-Cecilie; Tveten, Gry Merete; Guttormsen, Magne Sveen; Garrote, F. L. Bello; Kvellestad, Anders; Renstrøm, Therese (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    The Oslo method comprises a set of analysis techniques designed to extract nuclear level density and average -decay strength function from a set of excitation-energy tagged -ray spectra. Here we present a new software ...
  • A node-splitting lattice spring model coupled with a J-integral formulation as a fracture criterion 
    Ye, Bo; Jettestuen, Espen; Malthe-Sørenssen, Anders (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    A global energy minimization criterion based on Griffith’s theory is introduced for the node-splitting lattice spring model. The fracture criterion is computed by both direct numerical simulations of energy release rate G ...