Abstract: This article presents a wideband millimeter-wave (mmWave) phased array with a large beam-scanning angle for the communication of unmanned aerial vehicle (UAV). The proposed array is composed ...
Corrosion of reinforcing bars constitutes a significant factor contributing to cracking and spalling in reinforced concrete (RC) structures. To prolong the service life of RC structures, it is crucial ...
Iran’s Shahed drones are small and inexpensive, but they are still creating big problems for the U.S. and its allies in the Middle East. WSJ’s Shelby Holliday explains. Illustration: Jason Boone The ...