Prime Day is no longer just a single-day event -- it's four days of deals this year -- and our coverage is going to span the ...

The world is a big place, and there’s way more happening on it than any of us could ever keep track of. New creatures, wild landscapes, mind-blowing discoveries—they just keep coming. And honestly, ...

Abstract: In order to suppress the swing of slung load during the flight of the quadrotor unmanned aerial vehicle (UAV), a new double closed-loop nonlinear control method Newton–Euler is proposed ...