Abstract: This article presents an extensive examination of antennas rooted in nature and biology, showcasing their remarkable performance across a wide spectrum of frequencies—from microwave to ...

Abstract: In this paper, we propose a new wireless sensing system equipped with the movable-antenna (MA) array, which can flexibly adjust the positions of antenna elements for improving the sensing ...

A Spectra Physics Model A supermarket scanner—one of the first ten ever produced. A laser within the unit projects a beam onto a mirror that redirects it through the glass plate on the top. Cade ...

The Quick Response code, more popularly referred to as a QR code, has really taken off in recent years, and it's easy to see why. Though COVID-19 helped mainstream it, these codes make sharing ...

For as long as police officers and other first responders have been communicating with each other over the radio, there have been enthusiasts and other casual listeners eavesdropping on them using ...