How-To Geek on MSN

A beginner's introduction to Bash parameter expansions

At a basic level, parameter expansion means changing Bash syntax into a value—expanding it. For example: You can change the ...
IEEE

Multibeam Transmit-Reflect-Array Antenna Using Alternating Transmission and Reflection Elements for Space–Air–Ground–Sea Integrated Network

Abstract: A bidirectional multibeam transmit-reflect-array (TRA) antenna has been proposed for the space–air–ground–sea integrated network (SAGSIN). The TRA consists of alternating transmission ...