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Browsing by School "School of Engineering and Natural Sciences (UI)"

Browsing by School "School of Engineering and Natural Sciences (UI)"

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  • Bjarnason, Ingi Þorleifur (Hið íslenska náttúrufræðifélag, 1997)
    Heitur reitur er landsvæði sem einkennist af mikilli eldvirkni og jarðhita og stendur hátt yfir umhverfið. Ísland er einn af stærstu heitu reitum jarðar og gnæfir 2-4 km yfir venjulega hæð Norður-Atlantshafshryggjarins sem gengur í gegnum landið. Markmið ...
  • Ulfarsson, Magnus; Walters, G B; Gústafsson, O; Steinberg, S; Silva, A; Doyle, O M; Brammer, M; Gudbjartsson, Daniel; Arnarsdóttir, S; Jonsdottir, Gudbjorg; Gísladóttir, R S; Bjornsdottir, Gyda; Helgason, H; Ellingsen, L M; Halldórsson, J G; Sæmundsen, Evald E.; Stefánsdóttir, B; Jónsson, L; Eiríksdóttir, V K; Eiríksdóttir, G R; Jóhannesdóttir, G H; Unnsteinsdóttir, U; Jónsdóttir, B; Magnúsdóttir, B B; sulem, patrick; Þorsteinsdóttir, Unnur; Sigurðsson, E; Brandeis, D; Meyer-Lindenberg, A; Stefánsson, H; Stefansson, Kari (Springer Nature, 2017-04-25)
    Several copy number variants have been associated with neuropsychiatric disorders and these variants have been shown to also influence cognitive abilities in carriers unaffected by psychiatric disorders. Previously, we associated the 15q11.2(BP1–BP2) ...
  • Bjarnason, Ingi Þorleifur; Cowie, Patience; Anders, Mark H.; Seeber, Leonardo; Scholz, Christopher H. (The Seismological Society of America, 1993)
    We have mapped in detail surface ruptures of the 1912 magnitude 7.0 strike-slip earthquake in south Iceland. This earthquake ruptured fresh basalt flows that had covered the pre-existing fault. The observed style of surface fracturing closely matches ...
  • Gylfadottir, Sigridur Sif; Kim, Jihwan; Helgason, Jón Kristinn; Brynjólfsson, Sveinn; Höskuldsson, Ármann; Jóhannesson, Tómas; Harbitz, Carl Bonnevie; Løvholt, Finn (Wiley-Blackwell, 2017-05)
    A large rockslide was released from the inner Askja caldera into Lake Askja, Iceland, on 21 July 2014. Upon entering the lake, it caused a large tsunami that traveled about ∼3 km across the lake and inundated the shore with vertical runup measuring up ...
  • Aufaristama, Muhammad; Höskuldsson, Ármann; Ulfarsson, Magnus; Jónsdóttir, Ingibjörg; Thordarson, Thorvaldur (MDPI AG, 2019-02-26)
    The Holuhraun lava flow was the largest effusive eruption in Iceland for 230 years, with an estimated lava bulk volume of ~1.44 km3 and covering an area of ~84 km2. The six month long eruption at Holuhraun 2014–2015 generated a diverse surface environment. ...
  • Zafar, T.; Elm Heintz, Kasper; Fynbo, J. P. U.; Malesani, D.; Bolmer, J.; Ledoux, C.; Arabsalmani, M.; Kaper, L.; Campana, S.; Starling, R. L. C.; Selsing, J.; Kann, D. A.; Postigo, A. de Ugarte; Schweyer, T.; Christensen, L.; Møller, P.; Japelj, J.; Perley, D.; Tanvir, N. R.; D’Avanzo, P.; Hartmann, D. H.; Hjorth, J.; Covino, S.; Sbarufatti, B.; Jakobsson, P.; Izzo, L.; Salvaterra, R.; D’Elia, V.; Xu, D. (American Astronomical Society, 2018-06-18)
    The ultraviolet (UV) extinction feature at 2175 Å is ubiquitously observed in the Galaxy but is rarely detected at high redshifts. Here we report the spectroscopic detection of the 2175 Å bump on the sightline to the γ-ray burst (GRB) afterglow GRB ...
  • Fiebig, J.; Stefansson, Andri; Ricci, A.; Tassi, F.; Viveiros, F.; Silva, S.; Lopez, T.M.; Schreiber, C.; Hofmann, S.; Mountain, B.W. (European Association of Geochemistry, 2019-07-29)
    Abiotic formation of n-alkane hydrocarbons has been postulated to occur within Earth's crust. Apparent evidence was primarily based on uncommon carbon and hydrogen isotope distribution patterns that set methane and its higher chain homologues apart ...
  • Müller, Gideon Philipp (University of Iceland, School of Engineering and Natural Sciences, Faculty of Physical Sciences, 2019-09-02)
    An active field of research in magnetism today involves studies of solitons -- localised magnetic textures possessing particle-like properties. They are considered promising for various applications but are also intriguing from a fundamental point of ...
  • Saha, Subham (University of Iceland, School of Engineering and Natural Sciences, Faculty of Physical Sciences, 2017-06)
    Electron paramagnetic resonance (EPR) spectroscopy is routinely used to study the structure and dynamics of nucleic acids, to obtain information about their functions. A prerequisite for most EPR studies of nucleic acids is the incorporation of ...
  • Júlíusson, Haraldur Yngvi (University of Iceland, School of Engineering and Natural Sciences, Faculty of Physical Sciences, 2020-02-01)
    Rafeindasegullitrófsgreiningu (e. Electron Paramagnetic Resonance, EPR) er reglubundið beitt í rannsóknum á byggingu og hreyfingu kjarnsýra til að fá upplýsingar um starfsemi þeirra og hlutverk. Innleiðing meðseglandi kjarna á ákveðinn stað í kjarnsýrum ...
  • Batt, Catherine M.; Brown, Maxwell; Clelland, Sarah-Jane; Korte, Monika; Linford, Paul; Outram, Zoe (Elsevier BV, 2017-09)
    Archaeomagnetic dating offers a valuable chronological tool for archaeological investigations, particularly for dating fired material. The method depends on the establishment of a dated record of secular variation of the Earth's magnetic field and this ...
  • Ólafsdóttir, Þórunn Ásta; Alexandersson, Kristján F.; Sveinbjornsson, Gardar; Lapini, Giulia; Palladino, Laura; Montomoli, Emanuele; Del Giudice, Giuseppe; Gudbjartsson, Daniel; Jonsdottir, Ingileif (Frontiers Media SA, 2018-01-08)
    Influenza vaccination remains the best strategy for the prevention of influenza virus-related disease and reduction of disease severity and mortality. However, there is large individual variation in influenza vaccine responses. In this study, we ...
  • Koistinen, Olli-Pekka (Aalto University School of Science, 2019)
    Chemical reactions and other transitions involving rearrangements of atoms can be studied theoretically by analyzing a potential energy surface defined in a high-dimensional space of atom coordinates. Local minimum points of the energy surface correspond ...
  • Kibis, Oleg; Dini, Kevin Tanguy Elian; Iorsh, Ivan; Shelykh, Ivan (American Physical Society (APS), 2017-03-01)
    We demonstrate theoretically that the interaction of electrons in gapped Dirac materials (gapped graphene and transition-metal dichalchogenide monolayers) with a strong off-resonant electromagnetic field (dressing field) substantially renormalizes the ...
  • Prause, Simon; Weisenberger, Tobias Björn; Cappelletti, Piergiulio; Grimaldi, Carla; Rispoli, Concetta; Jónasson, Kristján; Jackson, Marie D.; Gudmundsson, Magnus Tumi (Elsevier BV, 2020-02-15)
    The evolution of hydrothermal alteration in glassy and variably palagonitized tuff, erupted as tephra in 1963 – 1964 on Surtsey, an island built in the offshore extension of Iceland’s southeast rift zone, is documented through a comparative petrographic ...
  • Scully, Sean (University of Iceland, School of Engineering and Natural Sciences, Faculty of Life and Environmental Sciences, 2019-05-31)
    The protein and amino acid metabolism of thermophilic bacteria has been a neglected aspect of their physiology despite its biotechnological potential. Under anaerobic conditions, the metabolism of many proteogenic amino acids requires the presence of ...
  • Tapia Rodriguez, Lucy E.; Walker, Paul M.; Sigurdsson, Helgi; Royall, Ben; Farrer, Ian; Ritchie, David A.; Yulin, Alexey V.; Shelykh, Ivan; Skolnick, Maurice S.; Krizhanovskii, Dmitry N. (The Optical Society, 2019-04-03)
    Using a sub-millimeter exciton-polariton waveguide suitable for integrated photonics, we experimentally demonstrate nonlinear modulation of pico-Joule pulses at the same time as amplification sufficient to compensate the system losses. By comparison ...
  • Rahpeyma, sahar (University of Iceland, School of Engineering and Natural Sciences, Faculty of Civil and Environmental Engineering, 2018-11-23)
    A comprehensive site-effect investigation framework was developed and applied to earthquake strong-motion data collected on small-aperture urban arrays, the ICEARRAY I in Hveragerði in the South Iceland Seismic Zone and ICEARRAY II in Húsavík in the ...
  • Elias, Said; Rupakhety, Rajesh; Olafsson, Stefan (Hindawi Limited, 2019-11-19)
    This study presents analysis of a benchmark building installed with tuned mass dampers (TMDs) while subjected to wind and earthquake loads. Different TMD schemes are applied to reduce dynamic responses of the building under wind and earthquakes. The ...
  • Halldórsdóttir, Gyða; Hvannberg, Ebba Thora (University of Iceland, School of Engineering and Natural Sciences, 2011-10)
    This report represents an analysis of an AAR (After Action) report from a practical training event that included AAR reports from nominated participants and AAR focus group meeting minutes. AAR reports are reviews of the outcome of a practical training ...