A Ferrari F430 Spider that once struggled to stand out in the collector market has found new life — and a significantly higher value — after undergoing a manual transmission conversion. Originally ...

Abstract: High-frequency harmonic resonance has been a frequently encountered issue in railway traction power-supply system (TPSS), since high-speed trains that are equipped with ac-dc-ac traction ...

Abstract: In order to achieve high-speed flight of a damaged quadrotor with complete loss of a single rotor, a multiloop hybrid nonlinear controller is designed. By fully making use of sensor ...

Watch as a classic red multi-speed bicycle undergoes a complete transformation into a custom single-speed bike. This hands-on project features every step, from freewheel and crankset modification to a ...