Learn the differences between the percentage of completion and completed contract methods. Discover how each impacts revenue ...

Abstract: This paper focuses on the formation control problem of a team of quadrotor unmanned aerial vehicles (UAVs) subject to switching directed topologies. We present a distributed event-triggered ...

Advanced alien civilizations might not be whispering across the cosmos with radio waves at all, but instead flickering like ...

Abstract: An artificial metalens manipulates the electromagnetic wavefront phase via deploying transmitted phase and amplitude of metasurfaces units, which exhibits excellent merits in beam steering ...