Now showing items 1-20 of 615

    • A 11‐day compressed overload and taper induces larger physiological improvements than a normal taper in elite cyclists 

      Rønnestad, Bent; Vikmoen, Olav (2019-08-28)
      Endurance athletes usually achieve performance peaking with 2‐4 weeks of overload training followed by 1‐3 weeks of tapering. With a tight competition schedule, this may not be appropriate. Thus, the aim of this study was ...
    • A 2.5-D Integrated Data Logger for Measuring Extreme Accelerations 

      Gakkestad, Jakob; Sollund, Tomas; Dalsjø, Per; Tveit, Bjørn; Taklo, Maaike Margrete Visser; Wright, Daniel Nilsen; Helland, Susanne; Kristiansen, Helge; Johnsen, Christian (2017)
      A very compact and rugged 2.5-D integrated data logger has been built and tested. The data logger is capable of measuring accelerations exceeding 70 000 g. Microcontroller and flash memory as bare dies have been mounted ...
    • 24 Hour Test of a Fuel Cell System for an Autonomous Underwater Vehicle 

      Gilljam, Martin; Weydahl, Helge; Lian, Torleif; Johannessen, Tom Cato; Holm, Sven Ivar; Hasvold, Jon Øistein (2016)
      The Norwegian Defence Research Establishment (FFI) has a long experience with power sources for autonomous underwater vehicles (AUVs). FFI has designed and built a power supply system based on a water-cooled and air-supplied ...
    • 250-MHz synchronously pumped optical parametric oscillator at 2.25–2.6 μm and 4.1–4.9 μm 

      Coluccelli, Nicola; Fonnum, Helge; Haakestad, Magnus Willum; Gambetta, Alessio; Gatti, Davide; Marangoni, Marco; Laporta, Paolo; Galzerano, Gianluca (2012)
      A compact and versatile femtosecond mid-IR source is presented, based on an optical parametric oscillator (OPO) synchronously pumped by a commercial 250-MHz Er:fiber laser. The mid-IR spectrum can be tuned in the range ...
    • A 3D Reactive Collision Avoidance Algorithm for Nonholonomic Vehicles 

      Syre Wiig, Martin; Pettersen, Kristin Ytterstad; Krogstad, Thomas Røbekk (2018)
      This paper presents a 3D reactive collision avoidance algorithm for vehicles with nonholonomic constraints. The algorithm steers the heading and pitch angle of the vehicle in order to maintain a constant avoidance angle ...
    • A 3D Reactive Collision Avoidance Algorithm for Underactuated Vehicles 

      Syre Wiig, Martin; Pettersen, Kristin Ytterstad; Krogstad, Thomas Røbekk (2018)
      This paper presents a 3D reactive collision avoidance algorithm for vehicles with underactuated dynamics. The underactuated states cannot be directly controlled, but are controlled indirectly by steering the direction of ...
    • A 3D Reactive Collision Avoidance Algorithm for Underactuated Vehicles 

      Syre Wiig, Martin; Pettersen, Kristin; Krogstad, Thomas Røbekk (2019-01-21)
      This paper presents a 3D reactive collision avoidance algorithm for vehicles with underactuated dynamics. The underactuated states cannot be directly controlled, but are controlled indirectly by steering the direction ...
    • 'Abdallah 'Azzam and Palestine 

      Hegghammer, Thomas (2013)
      ʿAbdallāh ʿAzzām (1941–1989) helped make jihadism more transnational by spearheading the effort to bring Muslim foreign fighters to Afghanistan in the 1980s. But why would a West Bank native devote himself to a war in ...
    • Accumulation of lead (Pb) in brown trout (Salmo trutta) from a lake downstream a former shooting range 

      Mariussen, Espen; Heier, Lene Sørlie; Teien, Hans-Christian; Pettersen, Marit Nandrup; Holth, Tor Fredrik; Salbu, Brit; Rosseland, Bjørn Olav (2017)
      An environmental survey was performed in Lake Kyrtjønn, a small lake within an abandoned shooting range in the south of Norway. In Lake Kyrtjønn the total water concentrations of Pb (14 µg/L), Cu (6.1 µg/L) and Sb (1.3 ...
    • Acoustic seabed classification using QTC IMPACT on single-beam echo sounder data from the Norwegian Channel, northern North Sea 

      Eidem, Ellen Johanne; Landmark, Knut (2013)
      Sediment mapping is important for understanding the physical processes, the impact of human activity, and the conditions for marine life on the seabed. For this purpose, the seabed classification tool QTC IMPACT analyses ...
    • Active spacecraft potential control investigation 

      Torkar, K.; Nakamura, R.; Tajmar, Martin; Scharlemann, C.; Jeszensky, H.; Laky, G.; Fremuth, G.; Escoubet, C. P.; Svenes, Knut Ragnar (2014)
      In tenuous plasma the floating potential of sunlit spacecraft reaches tens of volts, positive. The corresponding field disturbs measurements of the ambient plasma by electron and ion sensors and can reduce micro-channel ...
    • Adapting OLSR for WSNs (iOLSR) Using Locally Increasing Intervals 

      Larsen, Erlend; Flathagen, Joakim; Pham, Vinh Quang; Landmark, Lars (2012)
      Proactive link state routing protocols, popular within the Mobile Ad hoc NETwork framework, have not been as successful in wireless sensor networks. This is mainly due to the extensive energy usage by control traffic ...
    • Advice from the Scientific Advisory Board of the Organisation for the Prohibition of Chemical Weapons on riot control agents in connection to the Chemical Weapons Convention 

      Timperley, Christopher M.; Forman, Jonathan E.; Aas, Pål; Abdollahi, Mohammad; Benachour, Djafer; Al-Amri, Abdullah Saeed; Baulig, Augustin; Becker-Arnold, Renate; Borrett, Veronica; Cariño, Flerida A.; Curty, Christophe; Gonzalez, David; Geist, Michael; Kane, William; Kovarik, Zrinka; Martínez-Álvarez, Roberto; Mikulak, Robert; Fusaro Mourão, Nicia Maria; Neffe, Slawomir; De Souza Nogueira, Evandro; Ramasami, Ponnadurai; Raza, Syed K.; Rubaylo, Valentin; Saeed, Ahmed E.M.; Takeuchi, Koji; Tang, Cheng; Trifirò, Ferruccio; Mauritz van Straten, François; Suárez, Alejandra G.; Waqar, Farhat; Vanninen, Paula S.; Zafar-Uz-Zaman, Mohammad; Vucinic, Slavica; Zaitsev, Volodymyr; Zina, Mongia Said; Holen, Stian; Izzati, Fauzia Nurul (2018-12-19)
      Compounds that cause powerful sensory irritation to humans were reviewed by the Scientific Advisory Board (SAB) of the Organisation for the Prohibition of Chemical Weapons (OPCW) in response to requests in 2014 and 2017 ...
    • Agile requirements handling in a service-oriented taxonomy of capabilities 

      Hannay, Jo Erskine; Bråthen, Karsten; Mevassvik, Ole Martin (2016)
      To get to grips with information systems portfolio development, strategic decisions tend towards service orientation and cloud deployment. Functionality should be presented as services that can be consumed from secure ...
    • All Molecular Surfaces are Equal: Demanding Invariance of Predictions in Linear Single-Variable Models 

      Kjønstad, Eirik; Moxnes, John Fredrik; Jensen, Tomas Lunde; Unneberg, Erik (2016)
      The molecular surface has been suggested to be a region of the molecule where information of non-covalent intermolecular interactions is present. Many workers have pursued this idea by constructing models based on statistical ...
    • All solid-state spectral broadening: An average and peak power scalable method for compression of ultrashort pulses 

      Seidel, Marcus; Arisholm, Gunnar; Brons, Jonathan; Pervak, Vladimir; Pronin, Oleg (2016)
      Spectral broadening in bulk material is a simple, robust and low-cost method to extend the bandwidth of a laser source. Consequently, it enables ultrashort pulse compression. Experiments with a 38 MHz repetition rate, 50 ...
    • Analysis of detection performance of incoherent range walk compensation for passive radar 

      Finden, Erlend; Christiansen, Jonas Myhre; Lie-Svendsen, Øystein; Olsen, Karl Erik (2015)
      This paper analyzes the performance of an incoherent range walk compensation method for passive radar systems. The method utilizes the velocity information in the range-Doppler map, and no detection before compensation ...
    • Anisotropic scattered data interpolation for pushbroom image rectification 

      Ringaby, Erik; Friman, Ola; Forssén, Per-Erik; Opsahl, Thomas Olsvik; Haavardsholm, Trym Vegard; Kåsen, Ingebjørg (2014)
      This paper deals with fast and accurate visualization of pushbroom image data from airborne and spaceborne platforms. A pushbroom sensor acquires images in a line-scanning fashion, and this results in scattered input data ...
    • Anisotropy and shear-layer edge dynamics of statistically unsteady,stratified turbulence 

      Wingstedt, Emma My Maria; Fossum, Hannibal Eie; Reif, Bjørn Anders Pettersson; Werne, Joseph (2015)
      Direct numerical simulation data of an evolving Kelvin-Helmholtz instability have been analyzed in order to characterize the dynamic and kinematic response of shear-generated turbulent flow to imposed stable stratification. ...
    • Ansar al-Sharia in Libya: An Enduring Threat 

      Gråtrud, Henrik; Skretting, Vidar Benjamin (2017)
      Ansar al-Sharia in Libya (ASL) is one of the most powerful jihadi groups in Libya and it might, in fact, represent a more significant long-term threat than IS’ provinces in Libya. However, there are few recent studies of ...