Articles: Recent submissions
Now showing items 601-620 of 863
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Characterization of airborne bacteria at an underground subway station
(2012)The reliable detection of airborne biological threat agents depends on several factors, including the performance criteria of the detector and its operational environment. One step in improving the detector's performance ... -
Simulation of infrared avalanche photodiodes from first principles
(2017)The present article deals with device physics and modeling of an Hg0.28Cd0.72Te wide-area electron-initiated avalanche photodiode, with main input data extracted from first principles electronic structure codes. Due to the ... -
Efficient High-Power Ultrashort Pulse Compression in Self-Defocusing Bulk Media
(2017)Peak and average power scalability is the key feature of advancing femtosecond laser technology. Today, near-infrared light sources are capable of providing hundreds of Watts of average power. These sources, however, ... -
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 ... -
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 ... -
Cardiovascular and thermal strain during 3–4 days of a metabolically demanding cold‑weather military operation
(2017)Background Cardiovascular (CV) and thermal responses to metabolically demanding multi-day military operations in extreme cold-weather environments are not well described. Characterization of these operations will provide ... -
Military training elicits marked increases in plasmametabolomic signatures of energy metabolism, lipolysis,fatty acid oxidation, and ketogenesis
(2017)Military training studies provide unique insight into metabolic responses to extreme physiologic stress induced by multiple stressor environments, and the impacts of nutrition in mediating these responses. Advances in ... -
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, ... -
Ansar al-Sharia in Libya: An Enduring Threat
(2017)Ansar al-Sharia in Libya (ASL) is one of the most powerful jihadi groups in Libya and it might, in fact, represent a more significant long-term threat than IS’ provinces in Libya. However, there are few recent studies of ... -
From food defence to food supply chain integrity
(2017)Purpose Consumer confidence in the European food industry has been shaken by a number of recent scandals due to food fraud and accidental contamination, reminding the authors that deliberate incidents can occur. Food ... -
Modeling the behavior of a hierarchy of command agents with context-based reasoning
(2017)Context-based reasoning is a paradigm for modeling agent behavior that is based on the idea that humans only use a small portion of their knowledge at any given time. It was specially designed to represent human tactical ... -
Numerical study of spatiotemporal distortions in noncollinear optical parametric chirped-pulse amplifiers
(2017)During amplification in a noncollinear optical parametric amplifier the spatial and temporal coordinates of the amplified field are inherently coupled. These couplings or distortions can limit the peak intensity, among ... -
A Hybrid Architecture Framework for Simulations in a Service-Oriented Environment
(2017)Service orientation, and more recently, the notions of cloud technology that service orientation enable, are designed to accommodate the need for flexible enterprise business processes. Through standardized interfaces, a ... -
Changes in intestinal microbiota composition and metabolism coincide with increased intestinal permeability in young adults under prolonged physiologic stress
(2017)The magnitude, temporal dynamics, and physiological effects of intestinal microbiome responses to physiological stress are poorly characterized. This study used a systems biology approach and a multiple-stressor military ... -
Convex Variational Methods on Graphs for Multiclass Segmentation of High-Dimensional Data and Point Clouds
(2017)Graph-based variational methods have recently shown to be highly competitive for various classification problems of high-dimensional data, but are inherently difficult to handle from an optimization perspective. This ... -
Augmented Lagrangian method for an Euler's elastica based segmentation model that promotes convex contours
(2017)In this paper, we propose an image segmentation model where an L1 variant of the Euler's elastica energy is used as boundary regularization. An interesting feature of this model lies in its preference for convex segmentation ... -
Combination of stereo SAR and InSAR for DEM generation using TanDEM-X spotlight data
(2017)The objective of this work is to generate accurate digital elevation models (DEMs) from synthetic aperture radar (SAR) interferograms using the spotlight and staring spotlight modes during the TanDEM-X (TDX) science phase. ... -
Sparse Phase Estimation and Processing of Independent Coherent Processing Intervals
(2017)Radars employing electronically steering arrays are capable of instantaneously altering the direction of the beam along with other parameters. This flexibility offers great opportunities to a radar as it may e.g. divide ... -
Compressed Sensing with Interleaving Slow-Time Pulses and Hybrid Sparse Image Reconstruction
(2017)This paper explores a type of hybrid sparse reconstruction technique for modern multifunction task scheduling radars and on following range-Doppler plots. A compressed sensing (CS) framework is devised to emit and then ...