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 ...
Abstract: Sidelobes (SLs) in the two-way radiation pattern are of serious concern in a radar array. Several techniques have evolved to mitigate the problem, which include amplitude tapering, genetic ...
The Central Board of Secondary Education’s security system for confidential student information such as answer sheets came under scrutiny on Sunday after a hacker claimed to have accessed key data ...
Kara Alaimo is a professor of communication at Fairleigh Dickinson University and advises parents, students and teachers on how to manage screen time. Her book “Over the Influence: Why Social Media Is ...
CHICAGO (WGN) — Illinois Gov. JB Pritzker says he will sign a bill limiting students’ access to cell phones during class after it passed the Senate on Sunday. Senate Bill 2427 requires schools to set ...
Abstract: Time difference of arrival (TDOA) and direction of arrival (DOA) are, respectively, applied to detect partial discharge (PD) target with ultrasonic signal. The reason why these two methods ...
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