Abstract: Nowadays, there is a strong interest in miniature and high-power vacuum electron devices (VEDs) operating in millimeter and sub-THz bands. VED sources of coherent sub-THz radiation are ...

SAN FRANCISCO -- BART recovered from service issues early Monday morning due to an equipment problem in the Transbay Tube. The Red service is back up and running after being shut down for several ...

The challenge that can be a Monday morning brought more grief than normal to BART commuters for the second straight week, when an equipment problem reduced service through the Transbay Tube and ...

Tim Fang is a digital producer at CBS Bay Area. A Bay Area native, Tim has been a part of the CBS Bay Area newsroom for more than two decades and joined the digital staff in 2006. Bay Area Rapid ...

Your device does not support the audio. October 27 has been a day marked by significant events that have shaped the course of history across the globe. Don't miss our top stories and need-to-know news ...

Londoners relying on the Northern Line will be breathing a sigh of relief as the Tube service resumes normal service after days of disruption. TfL is reporting a good service on the line after finally ...