The marketing stunt is the first time in over 25 years that Transport for London has allowed a brand to advertise on its Tube seats. It's also probably the first time in over 25 years that TFL has ...
Over the weekend, more of the London Overground was split into its new names, with the new tube maps appearing in stations. Apart from the obvious name changes, there have been some other tweaks that ...
Abstract: This paper presents the development of a W-band, 1-kW pulsed traveling wave tube (TWT) featuring a pencil beam focused by a periodic permanent magnet (PPM) system with the four-port ...