Abstract: The results of simulation study aimed at development of a sub-THz traveling-wave tube (TWT) with a converged sheet electron beam are presented. The dual grating staggered slow-wave structure ...

An urgent manhunt is underway for a knifeman who allegedly ran towards terrified Tube passengers with a large machete before he jumped the barriers and fled the station. Shocking footage shared on ...

Shell-shocked passengers were forced to shelter inside a train carriage after the armed man reportedly ran through the station South London commuters were left terrified after a knifeman rampaged ...

Ever noticed your computer acting sluggish or warning you about low storage? Temporary files could be the sneaky culprit. Windows creates these files while installing apps, loading web pages, or ...