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Health effects after firing small arms comparing leaded and unleaded ammunition
(2014)
A number of Norwegian soldiers have reported health problems after live-fire training using the HK416 rifle. The objective of this study was to characterize gaseous and particulate emissions from three different types of ...
Behavioral Responses of Captive Herring to Sonar Signals (1-1.6 kHz) of a Naval Frigate Throughout a Yearly Cycle
(2012)
Atlantic herring, Clupea harengus, is a hearing specialist, and several studies have demonstrated
strong responses to man-made noise, for example, from an approaching vessel. To avoid negative
impacts from naval sonar ...
Brutal oppmerksomhet: Al-Qaida i Irak på nett
(2012)
Voldelige grupperinger som al-Qaida i Irak benytter seg av internett for å få
internasjonal oppmerksomhet. De er imidlertid fortsatt avhengig av en viss
grad av territoriell kontroll, og det kan oppstå et motsetningsforhold ...
En ny al-Gaddafi? Feltmarskalk Khalifa Haftar
(2017)
Den tidligere libyske offiseren Khalifa Haftar har etablert seg som den sterkeste aktøren i Libya. Hvordan klarte han å manøvrere seg frem til en maktposisjon etter den libyske revolusjonen? Hva er hans langsiktige mål, ...
Three-Site Diversity at Ka-Band Satellite Links in Norway: Gain, Fade Duration and the Impact of Switching Schemes
(2017)
Analysis of two years of measurements from a three-site satellite beacon diversity experiment in Norway is presented. The operating frequency was 19.68 GHz, elevation angles were between 21.7° and 22°, and site separations ...
Energy-scale Aware Feature Extraction for Flow Visualization
(2011)
In the visualization of flow simulation data, feature detectors often tend to result in overly rich response, making some sort of filtering or simplification necessary to convey meaningful images. In this paper we present ...
Characterization of a compact 6-band multifunctional camera based on patterned spectral filters in the focal plane
(2014)
In some applications of multi- or hyperspectral imaging, it is important to have a compact sensor. The most compact spectral imaging sensors are based on spectral filtering in the focal plane. For hyperspectral imaging, ...
Localized mesosphere-stratosphere-troposphere radar echoes from the E region at 69 degrees N: Properties and physical mechanisms
(2011)
We present the first observations, to our knowledge, of a new class of high-latitude mesosphere-stratosphere-troposphere radar echoes from the E region as observed with the Arctic Lidar Observatory for Middle Atmosphere ...
Large-eddy simulations of dense-gas dispersion within a high-Reynolds number turbulent boundary layer
(2017)
Large-eddy simulations of flows over a backward-facing step with release of four different gases with increasing densities have been performed. The results have been analysed with particular emphasis on the part of the ...
Software-Defined Underwater Acoustic Modems: Historical Review and the NILUS Approach
(2017)
Flexible/adaptive acoustic modems that are reprogrammable/reconfigurable at all layers of the communication stack, either by a user or by means of autonomous decisions, are considered as an important enabler for interoperability ...