Abstract: The power conversion efficiency of relativistic klystron amplifiers (RKAs) is severely limited by the strong space-charge repulsion force caused by the intense electron beam. A radial-line ...

Labour has broken its silence over calls to scrap the Triple Lock for state pensioners - after pressure to axe the pledge. A former Bank of England economist, Neil Record, has called for the ...

A blaze has broken out in Aberdeen city centre prompting a multi-agency response. Fire engines and cops raced to Ruby Place close to Golden Square after reports of an inferno in a derelict shop. Four ...

California’s annual rangelands are famous for their green, rolling hills in winter and spring. But as the grass dries out, these landscapes become highly flammable and pose a significant fire risk.

Lorne Michaels welcomes change as he opens up for the first time about Saturday Night Live‘s recent cast shake-up, admitting that “it’s always hard when people leave,” but change is what keeps the ...

US President Trump reacted to Russia’s alleged drone incursion into Polish airspace. Poland accused Moscow of violating its airspace and invoked NATO Article 4. Russia denied intent, while tensions ...

FOUR. NEXT THING I KNOW, FIREFIGHTERS ARE GOING UP THE STAIRS TO THE UPPER FLOORS AND THEY’RE BANGING ON THE DOORS LETTING EVERYONE KNOW YOU GOT TO GET OUT. A MASSIVE FIRE ON THE ROOF, FORCING DOZENS ...

According to Hydro One, the project is expected to support regional economic development, including the expansion of electric vehicle manufacturing and farming operations. Hydro One has officially ...

Colts safety Cam Bynum goes viral with his C-Nova dance celebration after a first-quarter interception against the Dolphins. The Miami Dolphins couldn’t stop an offense that quickly found its rhythm; ...

President Donald Trump said on Friday that Florida officials are taking a "tough stance" by moving to eliminate all vaccine mandates for students, as he stated that some "vaccines should be used." "I ...