Now showing items 139-158 of 697

    • The Dalton quantum chemistry program system 

      Aidas, Kestutis; Angeli, Celestino; Bak, Keld L.; Bakken, Vebjørn; Bast, Radovan; Boman, Linus; Christiansen, Ove; Cimiraglia, Renzo; Coriani, Sonja; Dahle, Pål; Dalskov, Erik K.; Ekström, Ulf Egil; Enevoldsen, Thomas; Eriksen, Janus J.; Ettenhuber, Patrick; Fernández, Berta; Ferrighi, Lara; Fliegl, Heike; Frediani, Luca; Hald, Kasper; Halkier, Asger; Hattig, Christof; Heiberg, Hanne; Helgaker, Trygve; Hennum, Alf Christian; Hettema, Hinne; Hjertenæs, Eirik; Høst, Stine; Høyvik, Ida Marie; Iozzi, Maria Francesca; Jansik, Brannislav; Jensen, Hans-Jørgen Aa.; Jonsson, Dan Johan; Jørgensen, Poul; Kauczor, Johanna; Kirpekar, Sheela; Kjærgaard, Thomas; Klopper, Wim; Knecht, Stefan; Kobayashi, Rika; Koch, Henrik; Kongsted, Jacob; Krapp, Andreas; Kristensen, Kasper; Ligabue, Andrea; Lutnæs, Ola B.; Melo, Juan I.; Mikkelsen, Kurt V.; Myhre, Rolf Heilemann; Neiss, Christian; Nielsen, Christian B.; Norman, Patrick; Olsen, Jeppe; Olsen, Jogvan Magnus H.; Osted, Anders; Packer, Martin J.; Pawlowski, Filip; Pedersen, Thomas Bondo; Provasi, Patricio F.; Reine, Simen Sommerfelt; Rinkevicius, Zilvinas; Ruden, Torgeir A.; Ruud, Kenneth; Rybkin, Vladimir V.; Salek, Pawel; Samson, Claire C. M.; Sanchez de Meras, Alfredo; Saue, Trond; Sauer, Stephan P. A.; Schimmelpfennig, Bernd; Sneskov, Kristian; Steindal, Arnfinn Hykkerud; Sylvester-Hvid, Kristian O.; Taylor, Peter R.; Teale, Andrew M.; Tellgren, Erik; Tew, David P.; Thorvaldsen, Andreas J.; Thøgersen, Lea; Vahtras, Olav; Watson, Mark A.; Wilson, David J. D.; Ziolkowski, Marcin; Ågren, Hans (2014)
      Dalton is a powerful general-purpose program system for the study of molecular electronic structure at the Hartree–Fock, Kohn–Sham, multiconfigurational self-consistent-field, Møller–Plesset, configuration-interaction, and ...
    • Data loss prevention based on text classification in controlled environments 

      Kongsgård, Kyrre Wahl; Nordbotten, Nils Agne; Mancini, Federico; Engelstad, Paal E. (2016)
      Loss of sensitive data is a common problem with potentially severe consequences. By categorizing documents according to their sensitivity, security controls can be performed based on this classification. However, errors ...
    • Data-Driven Autocalibration for Swath Sonars 

      Lønmo, Tor Inge Birkenes; Austeng, Andreas; Hansen, Roy Edgar (2020-12-20)
      Sidelobes in swath sonar water column imagery can obscure targets of interest and create erroneous bottom detections. Differences between ideal and actual element responses limit the achievable sidelobe level for practical ...
    • A decomposition solution approach to the troops-to-tasks assignment in military peacekeeping operations 

      Chaudry, Nadia; Vermedal, Ingunn; Fagerholt, Kjetil; Fauske, Maria Fleischer; Stålhane, Magnus (2019-09-20)
      This paper considers the Peacekeeping Troops-to-Tasks Problem (PTTP). The PTTP deals with assigning battlegroup resources to a set of tasks associated with a given peacekeeping mission. The tasks may be spread across several ...
    • Deep temporal detection - A machine learning approach to multiple-dwell target detection 

      Gusland, Daniel; Rolfsjord, Sigmund Johannes Ljosvoll; Torvik, Børge (2020)
      Detecting small targets, such as an Unmanned Aerial Vehicle (UAV) in high clutter and non-homogeneous environments is challenging for a radar system. Traditional Constant False Alarm Rate (CFAR) detectors have suboptimal ...
    • Deep-ultraviolet picosecond flat-top pulses by chirp-matched sum frequency generation 

      Vicario, Carlo; Trisorio, Alexandre; Arisholm, Gunnar; Hauri, Christoph P. (2012)
      Picosecond, flat-top, deep-UV pulses are needed to generate high-brightness electron beams to efficiently drive x-ray free electron lasers. Current metal photocathodes have low efficiency and therefore require high-energy ...
    • Defence industrial policy – a sound security strategy or an economic fallacy? 

      Fevolden, Arne Martin; Tvetbråten, Kari (2016)
      This article explores whether it makes sense for national governments to employ defence industrial policies – such as offsets and discriminatory procurement practices – to support their domestic defence industries. This ...
    • The defence industry as a locomotive for technological renewal in Russia: are the conditions in place? 

      Bukkvoll, Tor; Malmlöf, Tomas; Makienko, Konstantin (2017)
      This article examines the extent to which the conditions for successful military to civilian technological spin-offs are in place in Russia. This is important because Russian authorities use the potential for such spin-offs ...
    • Deletion of the γ-aminobutyric acid transporter 2 (GAT2 and SLC6A13) gene in mice leads to changes in liver and brain taurine contents 

      Zhou, Yun; Holmseth, Silvia; Guo, C; Hassel, Bjørnar; Höfner, G; Huitfeldt, Henrik; Wanner, KT; Danbolt, Niels Christian (2012)
      The GABA transporters (GAT1, GAT2, GAT3, and BGT1) have mostly been discussed in relation to their potential roles in controlling the action of transmitter GABA in the nervous system. We have generated the first mice lacking ...
    • Demonstrating Interoperability Between Unmanned Ground Systems and Command and Control Systems 

      Mathiassen, Kim; Schneider, Frank; Bounker, Paul; Tiderko, Alexander; De Cubber, Geert; Baksaas, Magnus; Glowka, Jakub; Kozik, Rafal; Nussbaumer, Thomas; Röning, Juha; Pellenz, Johannes; Volk, Andre (2021-05-25)
      This paper describes the research and experiment efforts of the NATO STO group IST-149-RTG capability concept demonstrator for interoperability within unmanned ground systems and C2 and the NAAG team of experts on UGV. ...
    • Demonstration of Comparison Methods for Ocean Model Validation 

      Hjelmervik, Karina Bakkeløkken; Hjelmervik, Karl Thomas (2012)
      In recent years an increasing amount of oceanographic data has become available. This includes observations as well as data from hydrodynamic ocean models. Validation is required for establishing the necessary confidence ...
    • Dendritic flux avalanches in a superconducting MgB2 tape 

      Qureishy, Thomas; Laliena, Carlos; Martínez, Elena; Qviller, Atle Jorstad; Vestgården, Jørn Inge; Johansen, Tom Henning; Navarro, Rafael; Mikheenko, Pavlo (2017)
      Tapes of MgB2 with high critical current have a significant technological potential, but can experience operational breakdown due to thermomagnetic instabilities. Such events are routinely registered by magnetisation ...
    • Descending Infrared Transmission Spectra of CdZnTe Substrates Due to Surface Roughness 

      Selvig, Espen; Kongshaug, Kjell Ove; Haakenaasen, Randi; Lorentzen, Torgeir; Brudevoll, Trond (2019-06-11)
      (111)B-oriented Cd0.96Zn0.04Te substrates with rough surfaces have been found to have infrared (IR) transmission spectra which decrease rapidly in intensity as the photon energy increases. The rough surfaces were produced ...
    • Destined for deadlock? Russia, Ukraine, and the unfulfilled Minsk agreements 

      Åtland, Kristian (2020-01-27)
      Bringing peace, security, and stability to the war-torn region of Donbas has proven to be a challenging — some would say near-impossible — task. The "Minsk II" agreement, signed in February 2015, was supposed to put an end ...
    • Detection metrics and ship [D]RI 

      Van Rheenen, Arthur D.; Heen, Lars Trygve; Madsen, Eirik Blix; Brendhagen, Erik; Løkken, Kristin Hammarstrøm; Almklov, Bernt; Glimsdal, Eirik (2018)
      Well-known detection metrics based on Johnson criteria or Target Task Performance (TTP) models were developed for land-based targets [1,2]. In this paper we investigate how (whether) we can apply these metrics to especially ...
    • Detection of forest clear-cuts with shuttle radar topography mission (SRTM) and tandem-X InSAR data 

      Solberg, Svein; Astrup, Rasmus Andreas; Weydahl, Dan Johan (2013)
      The aim of this study was to determine whether forest clear-cuts during 2000–2011 could be detected as a decrease in surface height by combining Digital Surface Models (DSMs) from the Shuttle Radar Topography Mission ...
    • Detection of Legionella pneumophila in a biological treatment plant by co-cultivatiobn with Acanthamoeba castellanii 

      Fykse, Else-Marie; Aarskaug, Tone; Blatny, Janet Martha (2014)
      Legionella pneumophila was identified in the aeration ponds of a biological wastewater treatment plant at the pulp and paper industry Borregaard, Sarpsborg, Norway. After 3 outbreaks of Legionaires’ disease reported in ...
    • Detection: how many pixels are required? 

      Rheenen, Arthur Dirk van; Thomassen, Jan Brede (2020-09-23)
      In this work, we studied how detection range of a small target changes as a function of the number of defined target pixels. The intuitively simplest method to look for a target in IR images is to look for the “hottest” ...
    • DETOUR trials: The mission and its results 

      Stejskal, Vojtech; Kuschel, Heiner; Brenner, Tateusz; Lamentowski, Leszek; Norheim-Næss, Idar; Samczynski, Piotr; Kulpa, Janusz (2017)
      In this paper DMPAR Evaluation Trials for Operationally Upgraded Radar (DETOUR) and their results for a selected scenario are described. The DETOUR trials were conducted by the SET-195 research task group (RTG) under an ...
    • Development and Calibration of a Low-Cost Radar Testbed Based on the Universal Software Radio Peripheral 

      Christiansen, Jonas Myhre; Smith, Graeme E. (2019-12-01)
      For a cognitive radar algorithm to be useful, it must run on radar hardware that is flexible. Typically, this has been viewed as requiring a software-defined radio. With the emergence of cheap, digital transceiver systems, ...