Abstract: The Vienna rectifier is an attractive topology for industrial applications. In order to obtain fixed switching frequency (FSF) while maintaining lower current distortion, an improved model ...

Abstract: This study proposed the use of coplanar waveguide Ultrawide-band strawberry artistic shaped printed monopole (SAPM) antenna with a single-layer frequency selective surface (FSS) as the ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Elissa Sanci Elissa Sanci is a senior writer who has reported on label makers, ...

CfA astronomers have found the fastest growing black hole on record, which could explain how some can get so big so quickly Cambridge (September 19, 2025)—A black hole is growing at one of the fastest ...

Retail giant Kmart broke privacy laws by using facial recognition technology (FRT) on its customers, the privacy commissioner has found. Over the two years until July 2022, Kmart captured the facial ...

A massive asteroid nearly the size of a New York skyscraper will make a close approach, or pass, by Earth in the early hours of Sept. 18, according to scientists. They say the asteroid, officially ...