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Now showing items 2843-2862 of 2870

    • When the noise goes on: received sound energy predicts sperm whale responses to both intermittent and continuous navy sonar 

      Isojunno, Saana; Wensveen, Paul Jacobus; Lam, Frans-Peter Alexander; Kvadsheim, Petter Helgevold; Benda-Beckmann, Alexander M. von; Lòpez, Lucia; Kleivane, Lars; Siegall, Elidh; Miller, Patrick James O'Malley (2020-04-08)
      Anthropogenic noise sources range from intermittent to continuous, with seismic and navy sonar technology moving towards near-continuous transmissions. Continuous active sonar (CAS) may be used at a lower amplitude than ...

    • "When we understand that slide, we'll have won the war" - peace support modelling with the use of the MARVEL tool 

      Fridheim, Håvard; Eggereide, Bård (2012-01-15)
      This report documents a study for the FFI project The Future Land Power, on the modelling of peace and stabilisation operations. The study was carried out in the period from June 2010 to August 2011, in collaboration with ...

    • Why Putin went to war: ideology, interests and decision-making in the Russian use of force in Crimea and Donbas 

      Bukkvoll, Tor (2016)
      Russia’s 2014 annexation of Crimea, and the country’s prominent role in instigating and supporting an anti-Kiev rebellion in Donbas, surprised the world. This study seeks to explain Russian behaviour in these two cases. ...

    • Why Russia opposes a NATO missile defence in Europe : a survey of common explanations 

      Nygaard, Ida; Hakvåg, Una (2013-01-03)
      During the past decade plans to establish a US-led NATO missile defence system in Europe has been one of the most contested issues in the relationship between Russia and NATO. This report provides a survey of the most ...

    • Why terrorism occurs - a survey of theories and hypotheses on the causes of terrorism 

      Lia, Brynjar; Skjølberg, Katja (2000)
      Research literature on terrorism has often been criticised for a general lack of scientifically sound theoretical research on patterns and causes of terrorism. This report provides an updated survey of existing theories ...

    • Wideband Interferometry in Synthetic Aperture Sonar 

      Sæbø, Torstein Olsmo; Synnes, Stig Asle Vaksvik; Hansen, Roy Edgar (2013)
      Synthetic aperture sonar (SAS) interferometry can provide very high resolution images and topographic maps of the seafloor over large swaths. Processing of interferometric data to retrieve reliable depth estimates of the ...

    • Wideband Propagation Characteristics at 312 MHz in Eastern Norway and Impact on Waveform Requirements 

      Jodalen, Vivianne; Pugh, Jeffrey; Vigneron, Phil (2015)
      A wideband Pseudo-Noise channel sounder built by CRC in Canada has been used to measure the wideband channel characteristics in three different types of terrain in Eastern Norway. The channel characteristics at 312 MHz are ...

    • Wideband Synthetic Aperture Sonar Back Projection with Maximization of Wave Number Domain Support 

      Synnes, Stig Asle Vaksvik; Hunter, Alan Joseph; Hansen, Roy Edgar; Sæbø, Torstein Olsmo; Callow, Hayden John; Van Vossen, Robbert; Austeng, Andreas (2017)
      Wideband and widebeam synthetic aperture sonar (SAS) can provide information on the frequency- and aspect-dependent scattering in a scene. We suggest an approach to predict the quality of the sensor data over the available ...

    • WiMAX - teknologi, funksjonelle egenskaper og sikkerhet 

      Farsund, Bodil Hvesser (2010)
      I dag er det en rivende utvikling innen infrastrukturer for elektronisk kommunikasjon. Trenden er at sivile og militære kommunikasjonsinfrastrukturer smelter sammen, både i forhold til teknologibruk og anvendelse. Sivile ...

    • WiMAX ytelsesmålinger i skogsterreng 

      Voldhaug, Jan Erik; Sander, Jostein; Bråten, Lars Erling (2008)
      Det er et behov for økende overføringskapasitet til brukere av trådløse kommunikasjonssystemer, også i Forsvarets taktiske avdelinger. Dette behovet kan trolig til en viss grad dekkes ved bruk av nye sivile mobile ...

    • Wind Turbines and Electromagnetic Systems (WTES) - software documentation 

      Meland, Bente Jensløkken; Nilssen, Eivind Bergh; Høye, Gudrun; Mjanger, Morten; Kristoffersen, Stein (2007)
      This report contains a description of the software developed by the FFI-project 1013 “Effekt av vindkraftutbygging på radiosamband og radar (VINDKRAFT)” (The effect of windmill development on telecommunication and ...

    • Wind- and tidal driven ambient noise in seasonallyice-covered waters north of the Svalbard archipelago 

      Tollefsen, Dag; Buen, Helge (2022-08-24)
      This paper presents analysis of a 1-year (2018–2019) recording of ambient noise (40–2000 Hz) at a seasonally ice-covered location on the continental slope between the Svalbard archipelago and the Nansen Basin, northeast ...

    • Windfarm Impact on Electromagnetic Systems (WIMP) - software documentation 

      Meland, Bente Jensløkken; Øhra, Hans (2007)
      This report is a description and user manual for the software developed at Teleplan according to the co-operation agreement between Teleplan and the FFI-project 1013 “The effect of windmill development on telecommunication ...

    • Wireless power transfer in the presence of metallic plates: Experimental results 

      Yu, Xiaofang; Skauli, Torbjørn; Skauli, Bjørn; Sandhu, Sunil; Catrysse, Peter B.; Fan, Shanhui (2013)
      We demonstrate efficient wireless power transfer between two high Q resonators, especially in a complex electromagnetic environment. In the close proximity of metallic plates, the transfer efficiency stays roughly the same ...

    • Wireless Sensor Networks - Trådløse sensor nettverk 

      Hanssen, Leif (2006)
      This report gives a brief overview of Wireless Sensor Networks and the status of this technology. WSN is a new and promising technology that shows a great potential for the armed forces. Only a limited effort in the NbF-Grid ...

    • The WISDOM Radar: Unveiling the Subsurface Beneath the ExoMars Rover and Identifying the Best Locations for Drilling 

      Ciarletti, Valérie; Clifford, Stephen; Plettemeier, Dirk; Le Gall, Alice; Herve, Yann; Dorizon, Sophie; Quantin-Nataf, Cathy; Benedix, Wolf-Stefan; Schwenzer, Susanne; Pettinelli, Elena; Heggy, Essam; Herique, Alain; Berthelier, Jean-Jacques; Kofman, Wlodek; Vago, Jorge L.; Hamran, Svein-Erik (2017)
      The search for evidence of past or present life on Mars is the principal objective of the 2020 ESA-Roscosmos ExoMars Rover mission. If such evidence is to be found anywhere, it will most likely be in the subsurface, where ...

    • Wound profiles in soap caused by penetration of high speed spheres 

      Martinussen, Svein Erlend; Moxnes, John F. (2002)
      As a first attempt at identifying a tissue model for use in wound ballistic simulations a study of the wound profiles in soap during deceleration of spherical steel projectiles has been carried out. Experimental data were ...

    • XML and Web Services Security 

      Nordbotten, Nils Agne (2008)
      Denne rapporten gir en oversikt over sikkerhetsstandarder for XML og Web services. Rapporten omfatter blant annet XML Signature, XML Encryption, XML Key Management Specification (XKMS), WS-Security, WS-Trust, WS-SecureCo ...

    • XML and Web services security standards 

      Nordbotten, Nils Agne (2009)
      XML and Web services are widely used in current distributed systems. The security of the XML based communication, and the Web services themselves, is of great importance to the overall security of these systems. Furthermore, ...

    • XML Based Certificate Management 

      Fongen, Anders (2008)
      The need for key management in SOA-based systems is addressed in this report. The report starts with a presentation of key management principles and a discussion of the problem posed by the PKI (Public Key Infrastructure) ...