Low current density sheet beam electron gun is very useful for compact planar travelling wave tube (TWT). In this paper, a planner low current density elliptical sheet beam electron gun is presented, ...

Gabions are an extension of the rock-fill principle of providing a protective lining to river beds and banks. They can provide effective protection against the action of moderate wave action. This ...

A SAVVY mum saved £2,000 after creating a bespoke fitted wardrobe using Argos and B&Q bargains. Claire Douglas wanted to give ...