Abstract: The audio system requires a large amount of power to transmit sound energy to all areas both inside and outside the room. Sound waves can propagate in the air and undergo great absorption in ...

Life may have originated in hot springs, and a study recreates those conditions using 3D printing.

Abstract: A Ka-band variable gain phase shifter (VGPS) based on a 55 nm SOI CMOS process is proposed in this paper. It consists of a quadrature signal generator and an X-type attenuator array. The ...

Find out about the different types of mortgage and understand the pros and cons of fixed-rate mortgages, tracker mortgages and more. Sam Wilson Sam covers personal finance topics, from the best ...