Results 31 to 40 of about 30,494 (169)

Accelerated synthesis of energetic precursor cage compounds using confined volume systems

Scientific Reports, 2021
Confined volume systems, such as microdroplets, Leidenfrost droplets, or thin films, can accelerate chemical reactions. Acceleration occurs due to the evaporation of solvent, the increase in reactant concentration, and the higher surface-to-volume ratios
Hilary M. Brown, Karan R. Doppalapudi, Patrick W. Fedick   +2 more
doaj   +1 more source

Cognitive warfare

, 2022
Military powers have consolidated in the last two decades a way to erase the boundaries between peacetime and crisis and wage a continuous war. Cognitive warfare (CW) has been proposed as the most advanced form to-date of manipulation of behaviour at mass scale to obtain strategic advantage. Instead of the corpse-ridden battlefields of kinetic warfare,
openaire   +1 more source

Investigation of Randomly Populated Cylindrical, Spherical, and Cubical Arrays for Application in Space, Aerial, and Underwater Collaborative Beamforming

IEEE Access
This work investigates and analyzes collaborative beamforming for a Swarm-enabled distributed sensing project. It investigates the use of a three-dimensional, randomly populated, and uniformly-distributed array in three configurations: spherical ...
Kristopher R. Buchanan, Roanne Manzano-Roth, Annie Lin, Gabriella Loaiza, Meghan Sills, Jin Li, Sara R. Wheeland, Sounak Chakrabarti, Angelica R. Rodriguez, Gregory H. Huff, Mark Patefield, Anthony Jones   +11 more
doaj   +1 more source

Mathematical analyses of the GPS receiver interference tolerance and mean time to loss lock

Defence Technology, 2019
In this paper, novel mathematical expressions are derived for the Global Positioning System (GPS) receiver interference tolerance in the presence of different types of interference signals such as: continuous wave interference, narrowband interference ...
Ehab M. Shaheen, Sherif A. Elgamel
doaj   +1 more source

Hard magnetic properties of FeCoNiAlCuXTiX based high entropy alloys

AIP Advances, 2021
High entropy alloys (HEA) contain multiple principal alloying elements, and possess unique properties due to the high configurational entropy and lattice strain in the system.
Suok-Min Na, Paul K. Lambert, Nicholas J. Jones   +2 more
doaj   +1 more source

Quantification of the effects of print parameters on the mechanical performance of low force stereolithography parts

International Journal of Lightweight Materials and Manufacture
The objectives of this work are threefold: (1) quantify the effects that certain print parameters have on the mechanical performance of parts produced by Low Force Stereolithography (LFS), (2) demonstrate the relative impact that certain print parameters
Michael Forstmeier, James LeBlanc, Eric Warner, Kelly Merlo   +3 more
doaj   +1 more source

Detection and parameter estimation of intra-pulse modulated radar signals in complex interference environments+

SN Applied Sciences, 2023
The main aim of this review is to describe in detail an advanced technique to detect and estimate the prior unknown parameters of intra-pulse modulated signals and the verification with typical radar signals.
Van Minh Duong, Jiri Vesely, Petr Hubacek, Premysl Janu, Xuan Luong Tran   +4 more
doaj   +1 more source

Flexible large-area ultrasound arrays for medical applications made using embossed polymer structures

Nature Communications
With the huge progress in micro-electronics and artificial intelligence, the ultrasound probe has become the bottleneck in further adoption of ultrasound beyond the clinical setting (e.g. home and monitoring applications).
Paul L. M. J. van Neer, Laurens C. J. M. Peters, Roy G. F. A. Verbeek, Bart Peeters, Gerard de Haas, Lars Hörchens, Laurent Fillinger, Thijs Schrama, Egon J. W. Merks-Swolfs, Kaj Gijsbertse, Anne E. C. M. Saris, Moein Mozaffarzadeh, Jan M. Menssen, Chris L. de Korte, Jan-Laurens P. J. van der Steen, Arno W. F. Volker, Gerwin H. Gelinck   +16 more
doaj   +1 more source

Low temperature effects on the mechanical, fracture, and dynamic behavior of carbon and E-glass epoxy laminates

International Journal of Lightweight Materials and Manufacture, 2020
An experimental investigation through which the effects of low temperatures on the mechanical, fracture, impact, and dynamic properties of carbon- and E-glass-epoxy composite materials has been conducted.
James LeBlanc, Paul Cavallaro, Jahn Torres, David Ponte, Eric Warner, Ryan Saenger, Irine Neba Mforsoh, Arun Shukla   +7 more
doaj   +1 more source

Mutual Interference Avoidance of FMCW Automotive Radars Using AI

Journal of Engineering Science and Military Technologies
Recent years witnessed a rapid growth of FMCW radar applications because of their desirable characteristics such as small size, high range resolution, low peak power requirements, and cost effectiveness.
mohamed ammar, Mohamed Abdellatif, Hossam Abou Bakr   +2 more
doaj   +1 more source