Now showing items 341-360 of 900

    • Tunable holmium-doped fiber laser with multiwatt operation from 2025 nm to 2200 nm 

      Holmen, Lars Grønmark; Shardlow, Peter C; Barua, Pranabesh; Sahu, Jayanta K; Simakov, Nikita; Hemming, Alexander; Andrew Clarkson, W (2019-11-18)
      The emission band of holmium-doped silica fibers extends beyond 2200 nm, which means these lasers have the potential of covering considerable parts of the atmospheric transmission window between ∼2100  nm and 2250 nm. ...
    • Multi-phase performance evaluation for modern minehunting systems 

      Midtgaard, Øivind; Warakagoda, Narada Dilp; Davies, Gary; Connors, Warren A.; Geilhufe, Marc (2019-05-10)
      Many NATO navies are in the process of replacing their dedicated minehunting vessels with systems of heterogeneous, unmanned modules. While traditional ship-based assets prosecute sonar contacts in sequence through to ...
    • Passive LWIR hyperspectral imaging of surfaces contaminated by CWA droplets 

      Landström, L; Kullander, Fredrik; Wästerby, Pär; Røen, Bent Tore (2019-05-17)
      A passive LWIR camera based on a focal plane array detector was used to capture hyperspectral images of different scenes where low volatile chemical warfare agent (CWA) and simulant droplets were deposited on a variety of ...
    • The Islamic state after the caliphate 

      Tønnessen, Truls (2019-10-14)
      Following the Islamic State loss of most of its territorial control and the fall of its self-declared Caliphate, many have warned that it is too early to declare that the group is defeated. The group has previously been ...
    • Simplified measurement of point spread functions of hyperspectral cameras for assessment of spatial coregistration 

      Skauli, Torbjørn; Torkildsen, Hans Erling (2019-05-14)
      In multi- and hyperspectral imaging, spatial coregistration of the point spread functions (PSFs) of all bands within each pixel is critical for the integrity of measured spectra. There is a need to define a standardized ...
    • The kinetics of lactate production and removal during whole-body exercise 

      Moxnes, John Fredrik; Sandbakk, Øyvind (2012-03-13)
      Background Based on a literature review, the current study aimed to construct mathematical models of lactate production and removal in both muscles and blood during steady state and at varying intensities during whole-body ...
    • A non-singular horizontal position representation 

      Gade, Kenneth (2010-07-03)
      Position calculations, e.g. adding, subtracting, interpolating, and averaging positions, depend on the representation used, both with respect to simplicity of the written code and accuracy of the result. The latitude/longitude ...
    • Military Off the Shelf Procurements: A Norwegian Case Study 

      Berg, Helene; Presterud, Ane Ofstad; Øhrn, Morten (2017-06-19)
      Buying off the shelf procurements (OTS) has become an important part of the national acquisition strategy in several countries, and this paper seeks to bring empirical evidence on OTS as the preferred acquisition strategy ...
    • (Invited) Changes in Thermal Stability of Cyclic Aged Commercial Lithium-Ion Cells 

      Lian, Torleif; Vie, Preben Joakim Svela; Gilljam, Martin; Forseth, Sissel (2019)
      Thermal stability is one of several factors affecting the safety properties of lithium-ion cells. The thermal stability for uncycled cells is well-documented, but the effect of cyclic ageing on thermal stability is far ...
    • Using Open Standards for Utilizing IoT Sensors in a Smart City Scenario 

      Johnsen, Frank T.; Bloebaum, Trude Hafsøe; Brannsten, Marianne Rustad; Lund, Ketil (2018)
      Although the use of the Internet of Things (IoT) in a smart city context primarily stems from civilian applications like management and monitoring, there are also other uses. For instance, military forces may utilize ...
    • Predicting acoustic dose associated with marine mammal behavioural responses to sound as detected with fixed acoustic recorders and satellite tags 

      von Benda-Beckmann, Alexander M.; Wensveen, Paul Jacobus; Prior, Mark; Ainslie, Michael; Hansen, Rune Roland; Isojunno, Saana; Lam, Frans-Peter Alexander; Kvadsheim, Petter Helgevold; Miller, Patrick James O'Malley (2019-03-08)
      To understand the consequences of underwater noise exposure for cetaceans, there is a need for assessments of behavioural responses over increased spatial and temporal scales. Bottom-moored acoustic recorders and satellite ...
    • Fighting on behalf of the state—the issue of pro-government militia autonomy in the Donbas war 

      Bukkvoll, Tor (2019-01-04)
      This study investigates the degree of autonomy the Ukrainian volunteer battalions had from the regular forces during the war in Donbas. The findings indicate that the degree of autonomy was high and that in particular, ...
    • 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 ...
    • Publish/Subscribe Versus a Content-Based Approach for Information Dissemination 

      Johnsen, Frank T.; Landmark, Lars; Hauge, Mariann; Larsen, Erlend; Kure, Øivind (2019-01-03)
      NATO has identified the WS-Notification standard from OASIS to support event-driven communication in the NATO enterprise and when building coalition networks. Using this standard promotes interoperability. However, there ...
    • p-Adic Brownian Motion as a Limit of Discrete Time Random Walks 

      Bakken, Erik Makino; Weisbart, David (2019-05-25)
      Abstract. The p-adic di usion equation is a pseudo di erential equation that is formally analogous to the real di usion equation. The fundamental solutions to pseudo di erential equations that generalize the p-adic di ...
    • Northern bottlenose whales in a pristine environment respond strongly to close and distant navy sonar signals 

      Wensveen, Paul J.; Isojunno, Saana; Hansen, Rune Roland; von Benda-Beckmann, Alexander M.; Kleivane, Lars; van IJsselmuide, Sander; Lam, Frans-Peter Alexander; Kvadsheim, Petter Helgevold; DeRuiter, Stacy L.; Curé, Charlotte; Narazaki, Tomoko; Tyack, Peter Lloyd; Miller, Patrick James O'Malley (2019-03-20)
      Impact assessments for sonar operations typically use received sound levels to predict behavioural disturbance in marine mammals. However, there are indications that cetaceans may learn to associate exposures from distant ...
    • 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 ...
    • Ship tracking results from state-of-the-art space-based AIS receiver systems for maritime surveillance 

      Skauen, Andreas Nordmo (2019-04-11)
      Norway currently operates four satellites with Automatic Identification System (AIS) receivers. The first-generation satellites, AISSat-1 and AISSat-2, are equipped with a two-channel, single-antenna AIS receiver, while ...
    • Fragmentation of an armour piercing projectile after impact on composite covered alumina tiles 

      Rahbek, Dennis Bo; Johnsen, Bernt Brønmo (2019-11-18)
      In a typical body armour system, a hard armour plate is often used in conjunction with a soft ballistic panel. The main purpose of the armour plate is to erode and fragment an impacting projectile, such as 7.62 mm armour ...
    • Using Publish/Subscribe for Short-lived IoT Data 

      Johnsen, Frank T. (2018-09-12)
      Although the use of the Internet of Things (IoT) in a smart city context primarily stems from civilian applications like management and monitoring, there are also other uses. For instance, military forces may utilize ...