The properties of one-dimensional (1-D) unidirectional leaky-wave antennas (LWAs) based on partially reflecting sheets (PRS) are analyzed here. In particular, we derive conditions for maximizing the ...

Watercolor vector wild flower border banner. Spring, summer garden. Design for invitation, card, stationery, wedding, birthday and other printing projects. Blank space for your text. Hand drawn ...

Arne Maynard shares his design for a softly coloured border that flowers in late May before giving way to lush foliage – and we've made it very easy to steal ...

In the midst of a sizzling summer, UK households are advised to use a simple A4 paper trick to prevent their fridge from costing them extra money. With forecasts indicating that temperatures could ...

According to the actual process requirements of steel sheet packaging in steel coil packaging process, this paper designs the control system of automatic steel sheet wrapping machine. And this control ...