Browsing Articles by Title
Now showing items 428-447 of 842
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Long-Term Measurements of Tropospheric Scintillation at Very Low Elevation Angles - Initial Analysis
(2022-05-11)Four years of scintillation measurements at very low elevation angles at Kjeller, Norway are analyzed and compared with the ITU-R model. One year is at Ka band with an elevation angle of 3°, and three years are of simultaneous ... -
A LoRa Mesh Network Asset Tracking Prototype
(2020)Long Range (LoRa) is a low powered wide area communications technology, which uses radio frequencies in the industrial, scientific and medical (ISM) band to transmit data over long distances. Due to these properties, i.e., ... -
Low-Complexity Adaptive Sonar Imaging
(2016)We have studied the low-complexity adaptive (LCA) beamformer in active sonar imaging. LCA can be viewed as either a simplification of the minimum variance distortionless response (MVDR) beamformer, or as an adaptive extension ... -
Low-energy enhancement of nuclear γ strength and its impact on astrophysical reaction rates
(2014)An unexpected enhancement in the low-energy part of the γ-strength function for light and medium-mass nuclei has been discovered at the Oslo Cyclotron Laboratory. This enhancement could lead to an increase in the neutron-capture ... -
LTE for Military Communication - Business Models and Vulnerabilities
(2017)This document outlines security issues concerning military use of LTE. It illustrates implications of different business models, and outlines vulnerabilities that decision makers should be aware of in order to protect the ... -
Making the Milrem Themis UGV ready for autonomous operations
(2021-04-12)The usage of Unmanned Ground Vehicles (UGVs) in defence application is increasing, and much research effort is put into the field. Also, many defence vehicle producers are developing UGV platforms. However, the autonomy ... -
The malleability of competitive preferences
(2023-04-14)Men are more competitive than women, but we do not know how stable competitive preferences are. We conduct a pre-registered data collection in the Norwegian Armed Forces, a traditionally male environment, using survey ... -
Marine mammals and sonar: dose-response studies, the risk-disturbance hypothesis and the role of exposure context
(2017)Marine mammals may be negatively affected by anthropogenic noise. Behavioural response studies (BRS) aim to establish a relationship between noise exposure conditions (dose) from a potential stressor and associated behavioural ... -
Mass analysis of charged aerosol particles in NLC and PMSE during the ECOMA/MASS campaign
(2009)MASS (Mesospheric Aerosol Sampling Spectrometer) is a multichannel mass spectrometer for charged aerosol particles, which was flown from the Andoya Rocket Range, Norway, through NLC and PMSE on 3 August 2007 and through ... -
Maternal deprivation of Lewis rat pups increases the severity of experimental periodontitis in adulthood
(2015)Background and Objective: Early life adverse events may influence susceptibility/resistance to chronic inflammatory diseases later in life by permanently dysregulating brain-controlled immune-regulatory systems. We ... -
Mathematical modelling of the oxygen uptake kinetics during whole-body endurance exercise and recovery
(2017)In this study, we elucidate four different mathematical models of the kinetics of oxygen uptake during whole-body endurance exercise at different intensities and throughout the subsequent recovery periods. We employ the ... -
Mathematical relations related to the lode parameter for studies of ductility
(2016)During plastic flow, hydrostatic pressure and plastic strain control the size of the yield surface while the Lode angle is responsible for its shape. The von Mises yield condition shows no dependency of the Lode angle ... -
Mathematical simulation of enegy expenditure and recovery during sprint cross-country skiing
(2014)Purpose: A cross-country sprint competition relies on maximal effort durations of 3–4 minutes. Significant anaerobic energy contribution is expected. Anaerobic energy contribution has been estimated in different sports to ... -
Measured and modeled spatial rain rate correlation to improve the prediction method for satellite site diversity
(2015)Rainfall rate varies both temporarily and spatially. Radio systems, where rain attenuation causes outages, may take advantage of this effect to increase the radio link or satellite link availability using diversity techniques. ... -
Measurement of point spread function for characterization of coregistration and resolution: Comparison of two commercial hyperspectral cameras
(2018)For spectral cameras, the spatial resolution and coregistration of bands are important performance characteristics. The paper discusses how these can be quantified in a way that is relevant for the spectroscopic processing ... -
Measurements and modeling of effects of out-of-plane reverberation on the power delay profile for underwater acoustic channels
(2015)Long reverberation tails are often observed in shallow-water acoustic channel impulse responses (CIRs). Examples from three significantly different environments along the Norwegian coast are presented. It is shown that 2-D ... -
Measurements of high-frequency acoustic scattering from glacially eroded rock outcrops
(2016)Measurements of acoustic backscattering from glacially eroded rock outcrops were made off the coast of Sandefjord, Norway using a high-frequency synthetic aperture sonar (SAS) system. A method by which scattering strength ... -
Measurements of IR propagation in the marine boundary layer during the September 2011 SQUIRREL trial
(2012)A multinational field trial (SQUIRREL) was performed at the Eckernförder Bucht, in the Baltic Sea, during September 2011 to study infrared ship signature and atmospheric propagation effects close to the sea surface in a ... -
Mechanical Properties of Smokeless Composite Rocket Propellants Based on Prilled Ammonium Dinitramide
(2012)Ammonium dinitramide (ADN) is a high performance solid oxidizer of interest for use in high impulse and smokeless composite rocket propellant formulations. While rocket propellants based on ADN may be both efficient, clean ... -
Meta-heuristics for improved RF emitter localization
(2017)Locating Radio Frequency (RF) emitters can be done with a number of methods, but cheap and widely available sensors make the Power Difference of Arrival (PDOA) technique a prominent choice. Predicting the location of an ...