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Now showing items 2215-2234 of 2869

    • Sårbarhet i kraftforsyningens drifts- og styringssystemer 

      Rodal, Siv Kjersti (2001)
      This report presents a short overview of the results from the study of the vulnerability of the information systems in the Norwegian electric power system to physical, electromagnetic and logical threats. Generally, ...

    • Sårbarheter i Internett 

      Thuv, Aasmund; Windvik, Ronny; Nystuen, Kjell Olav; Sivertsen, Tormod Kalberg (2007)
      I de siste °arene har Internett blitt et viktig kommunikasjonssystem for samfunnet, b°ade som et kommunikasjonsmedium og som en plattform for stadig mer avanserte tjenester. Internett har blitt en viktig integrert del ...

    • Scaling Behavior of Quasi-One-Dimensional Vortex Avalanches in Superconducting Films 

      Qviller, Atle Jorstad; Qureishy, Thomas; Xu, Y; Suo, H; Mozhaev, PB; Hansen, J.B.; Vestgården, Jørn Inge; Johansen, Tom Henning; Mikheenko, Pavlo (2020-03-27)
      Scaling behaviour of dynamically driven vortex avalanches in superconducting YBa2Cu3O7−δ films deposited on tilted crystalline substrates has been observed using quantitative magneto-optical imaging. Two films with different ...

    • Scanning electron microscopy (SEM) bilder av ulike RDX kvaliteter 

      Nevstad, Gunnar Ove (2002)
      The quality of RDX crystals has strong influence on the sensitivity of explosive products containing the crystals. The shock sensitivity of PBXN-109 made from different batches of RDX has shown significantly different ...

    • Scenario modelling with morphological analysis 

      Johansen, Iver (2017)
      Scenarios can serve as points of reference in the future for decisions that we have to make today. Morphological analysis provides a structured method for ensuring consistency and relevance in scenario development. This ...

    • Scenarioer for samfunnssikkerhet og nasjonal beredskap (sladdet utgave) 

      Hagen, Janne Merete; Knutsen, Bjørn Olav; Bjørnenak, Morten; Sandrup, Therese (2011-04-15)
      Denne rapporten er en del av BAS6-prosjektet. Målet med rapporten er å utvide trusselspekteret og det mentale kartet hos norske myndigheter med beredskapsansvar i krise og krig. Scenarioene i denne rapporten er et ...

    • Scenarioer for uønsket påvirkning i forbindelse med norske valg 

      Bjørgul, Lea; Sivertsen, Eskil Grendahl; Sellevåg, Stig Rune (2022-06-17)
      Hensikten med denne rapporten er å utvikle, beskrive og drøfte mulige scenarioer for hvordan informasjonspåvirkning i sammenheng med norske valg kan foregå. Rapporten drøfter hvilke konsekvenser scenarioene kan ha og hvilket ...

    • Scenarioklasser for forsvarsplanlegging – revisjon av FFIs scenariogrunnlag 

      Johansen, Iver (2022-01-20)
      De omgivelser Forsvaret skal virke innenfor i fremtiden er beheftet med stor usikkerhet. Gjennom en systematisk beskrivelse av mulige fremtidige situasjoner danner scenarioer et verktøy for å håndtere denne usikkerheten ...

    • Scenarioklasser i Forsvarsstudie 2007 - en morfologisk analyse av sikkerhetspolitiske utfordringer mot Norge 

      Johansen, Iver (2006)
      En sentral dimensjon ved forsvarsplanleggingen er hvilke militære utfordringer Forsvaret vil kunne bli stilt overfor i fremtiden. Denne rapporten analyserer dette ved å se på det overordnede sikkerhetspolitiske utfordringsspektrum ...

    • Seabed characterization with a small towed array - simulation of system design facors 

      Tollefsen, Dag (2013-07-01)
      This report studies design factors for a small activated towed-array system for use in seabed characterization. By seabed characterization is here meant the estimation of geo-acoustic parameters including sound speed, ...

    • Seabed classification of the Navy´s exercise area in the northern North Sea 

      Eidem, Ellen Johanne; Landmark, Knut (2008)
      The propagation of sound from ships, explosive charges and sonars is dependent on both topography and the geoacoustic properties of the seabed at low frequencies or in shallow waters. Information about the seabed is therefore ...

    • Search and monitoring of shipwreck and munitions dumpsites using HUGIN AUV with synthetic aperture sonar – technology study 

      Author::Hansen, Roy Edgar; Author::Lågstad, Petter; Author::Sæbø, Torstein Olsmo (2019-02-01)
      Sammendrag Teknologien til autonome undervannsfarkoster (AUV) har modnet betraktelig de siste tiårene. I dag er AUV-er tilgjengelig og pålitelig til bruk både i forskning og i kommersielle, offentlige og militære sammenhenger. ...

    • Search by photo methodology for signature properties assessment by human observers 

      Selj, Gorm Krogh; Heinrich, Daniela (2015)
      Reliable, low-cost and simple methods for assessment of signature properties for military purposes are very important. In this paper we present such an approach that uses human observers in a search by photo assessment of ...

    • Search+ - an efficient peer-to-peer service discovery mechanism 

      Skjegstad, Magnus; Johnsen Frank T. (2009)
      This report looks at commonly used Peer-to-Peer (P2P) protocols and aims to identify strengths and weaknesses they may have in a military environment. We further describe some of the P2P based solutions for service ...

    • Security for Autonomous and Unmanned Devices: Cryptography and its Limits 

      Strand, Martin; Wiik, Jan Henrik (2022-02-07)
      We survey existing literature on protecting resource constrained autonomous and unmanned devices. The goal is to secure data both during transmission and at rest, also when facing highly skilled and motivated adversaries. ...

    • Security implications of climate change in the Arctic 

      Åtland, Kristian (2010)
      The melting of the polar ice cap is opening previously inaccessible parts of the Arctic region to resource extraction and marine transportation. If the retreat of the Arctic sea ice continues at its current pace, ice ...

    • Segmentation of PMSE data using random forests 

      Jozwicki, Dorota; Sharma, Puneet; Mann, Ingrid; Hoppe, Ulf-Peter Jürgen (2022-06-22)
      EISCAT VHF radar data are used for observing, monitoring, and understanding Earth’s upper atmosphere. This paper presents an approach to segment Polar Mesospheric Summer Echoes (PMSE) from datasets obtained from EISCAT VHF ...

    • Seismic exploration noise reduction in the marginal ice zone 

      Tollefsen, Dag; Sagen, Hanne (2014)
      A sonobuoy field was deployed in the Marginal Ice Zone of the Fram Strait in June 2011 to study the spatial variability of ambient noise. High noise levels observed at 10–200 Hz are attributed to distant (1400 km range) ...

    • Selected Issues of QoS Provision in Heterogenous Military Networks 

      Hauge, Mariann; Landmark, Lars; Lubkowski, Piotr; Amanowicz, Marek (2014)
      Tactical ad-hoc networks are evolving today towards complex heterogeneous networks in terms of architecture, protocols and security. Due to the difference in network resources and reliability, end-to-end quality of service ...

    • A selection of data from measurements of C4 detonations at Finnskogen in 1994 - test case C1 

      Huseby, Morten (2007)
      Denne rapporten er en del av et pågående arbeid ved Forsvarets forskningsinstitutt (FFI) for å forbedre Forsvarsbygg (FB) sin evne til å estimere støynivået rundt forsvarets skytefelt. FFI sitt arbeid er en del av et ...