Articles: Recent submissions
Now showing items 181-200 of 900
-
Military Applications of Internet of Things: Operational Concerns Explored in Context of a Prototype Wearable
(2021-10)Internet of Things (IoT), due to its inherently automated behavior and low development costs, coupled with the emergence of wireless technologies combined with small-sized hardware, has become one of the defining ... -
Holmium-doped fiber amplifier for pumping a ZnGeP2optical parametric oscillator
(2021-03-03)We present a holmium-doped all-fiber master oscillator power amplifier (MOPA) system operating at 2108 nm targeting optical frequency conversion applications. The MOPA delivers pulses of 0.52 mJ energy at 10 kHz repetition ... -
Fusing of a continuous output PDR algorithm with an ultrasonic positioning system
(2021-12-09)The availability of inertial navigation sensors in smartphones has facilitated the development of pedestrian dead reckoning (PDR) models on a large scale. These models often consist of a step detection algorithm combined ... -
A containerised approach to labelled C&C traffic
(2022-01-24)A challenge for data-driven methods for intrusion detection is the availability of high quality and realistic data, with ground truth at suitable level of granularity to train machine learning models. Here, we explore a ... -
Surgical helmets can be converted into efficient disinfectable powered air-purifying respirators
(2021-12-25)Background Filtering facepiece respirators often fail to provide sufficient protection due to a poor fit. Powered air-purifying respirators (PAPRs) are not designed for healthcare personnel, and are challenging to disinfect. ... -
Relative Heading Estimation for Pedestrians Based on the Gravity Vector
(2021-03-15)Inertial navigation of pedestrians carrying a smart device is a core component of many indoor positioning systems. While infrastructure-based solutions typically depend on an installation of dedicated hardware, inertial ... -
Systemic approaches for emission reduction in industrial plants based on physical accounting: example for an aluminium smelter
(2022-01-22)Greenhouse gas (GHG) accounting in industrial plants usually has multiple purposes, including mandatory reporting, shareholder and stakeholder communication, developing key performance indicators (KPIs), or informing ... -
Pragmatism and Purism in Jihadist Governance: The Islamic Emirate of Azawad Revisited
(2022-01-02)The Islamic Emirate established in northern Mali in 2012 was brought down less than a year later by a French military intervention, pro- voked by the Emirate’s belligerent posture. This article explains why the leaders of ... -
The First GAEN-Based COVID-19 Contact Tracing App in Norway Identifies 80% of Close Contacts in “Real Life” Scenarios
(2021-11-17)The coronavirus disease 2019 (COVID-19) response in most countries has relied on testing, isolation, contact tracing, and quarantine (TITQ), which is labor- and time-consuming. Therefore, several countries worldwide launched ... -
Severity Scoring of Behavioral Responses of Sperm Whales (Physeter macrocephalus) to Novel Continuous versus Conven tional Pulsed Active Sonar
(2021-04-19)Controlled exposure experiments (CEEs) have demonstrated that naval pulsed active sonar (PAS) can induce costly behavioral responses in cetaceans similar to antipredator responses. New generation continuous active sonars ... -
In situ performance prediction of a coherent acoustic modem in a reverberant environment
(2021-07-28)A channel sounding and communications experiment was performed in the Oslofjord, using eight bottom-mounted instrument units deployed in a network configuration. Five units were equipped with a software-defined 4–8-kHz ... -
Spectral characteristics of moist birch leaves and synthetic materials: experimental studies and evaluation of models
(2021-11-09)The optical depth of biomaterials and natural backgrounds varies with their environment and incoming light properties. Deciduous trees, for instance, have canopy thicknesses that vary significantly from one place to another. ... -
Detection of Point Scatterers in Medical Ultrasound
(2021-11-19)We present an overview of the detection of point scatterers in ultrasound images and suggest strategies for evaluating and measuring the detection performance. We use synthetic aperture Field II simulations of a point ... -
Utilizing Zirconium MOF-functionalized fiber substrates prepared by molecular layer deposition (MLD) for toxic gas capture and chemical warfare agent degradation
(2021-09-12)Metal–organic frameworks (MOFs) are a class of porous organic-inorganic solids extensively explored for numerous applications owing to their catalytic activity and high surface area. In this work MOF thin films deposited in ... -
Spatial coherence of speckle for repeat-pass synthetic aperture sonar micronavigation
(2021-03-31)Accurate positioning of autonomous underwater vehicles is a major challenge. The long-term drift is problematic if global position updates are not available, and for applications such as repeat-pass interferometry and ... -
A neural network framework for binary classification of radar detections.
(2021-09-17)A desired objective in radar target detection is to satisfy two very contradictory requirements: offer a high probability of detection with a low false alarm rate. In this paper, we propose the utilization of artificial ... -
A Bayesian Network Approach to Evaluating the Effectiveness of Modern Mine Hunting
(2021-10-29)This paper describes a novel technique for estimating how many mines remain after a full or partial underwater mine hunting operation. The technique applies Bayesian fusion of all evidence from the heterogeneous sensor ... -
Spectral properties of multilayered oak leaves and a camouflage net: experimental measurements and mathematical modelling
(2021-09-21)The development of state-of-the-art surveillance technology forces nations to develop camouflage with advanced capabilities. Owing to the abundance and wide distribution of leaves, their spectral properties are often ... -
Spectral reflectance measurements of snow and snow covered objects: experimental studies compared with mathematical models
(2021-09-12)In this study, we have investigated reflectance spectra of different snow types under various conditions. Snow reflectance is interesting from a camouflage point of view as snow covers large land areas in many parts of the ... -
Leveraging network-centric strategic goals in capabilities
(2021-04-19)The vision of network-centric operations is to increase operational capabilities through networked collaboration. NATO and its member nations state this vision in strategic documents at a very high level of abstraction. ...