Barter vs. Currency Systems: Key Differences Explained

Compare barter and currency systems. Discover why currency dominates modern trade and explore the evolution of digital ...

Arsenal still in control of title race; Liverpool need improvements

Both Arsenal and Liverpool settled for a point in a scoreless draw, but it was a missed opportunity for the Gunners to extend ...
Hackaday

How Do PAL And NTSC Really Work?

Many projects on these pages do clever things with video. Whether it’s digital or analogue, it’s certain our community can ...
IEEE

Full-Duplex Wideband Digital Array With Beamforming and Application to Sum/Difference Pattern Retrodirectivity

Abstract: A fully digital antenna array is developed and experimentally tested for beamforming, null generation, and in-band full duplex (IBFD) retrodirective beam-steering. The supporting S-band ...
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 ...