'Nano-origami' reshapes liquid droplets into six-pointed stars

For the first time, researchers in France and Israel have observed how an emulsified liquid droplet can transform from a ...
IEEE

A Convex Optimization Approach for the Design of Supergain Electrically Small Antenna and Rectenna Arrays Comprising Parasitic Reactively Loaded Elements

Abstract: A convex optimization formulation is provided for antenna arrays comprising reactively loaded parasitic elements. The objective function consists of maximizing the array gain, while ...
IEEE

Entry Trajectory Optimization With General Polygonal No-Fly Zone Constraints

Abstract: Trajectory optimization of a hypersonic glide vehicle (HGV) has a highly nonlinear model and complex constraints. Therefore, it is difficult to deal with polygonal no-fly zone (PNFZ) ...