As Americans scramble for relief, public attention has turned to an over-the-counter supplement called N-acetylcysteine, or ...

The haul highlights how the president’s team has continued aggressive fund-raising from donors with interests before the ...

Abstract: To realize stable flight of electricaircraft in complex environments, this article investigates the composite adaptive super-twisting sliding mode (ASTSM) controller for permanent magnet (PM ...

Abstract: In this paper, a novel barrier function-based super-twisting integral terminal sliding mode control algorithm is proposed for a quad-rotor unmanned aerial vehicle (UAV). The approach of ...