We've been studying them for millennia, so how far have we come?

Abstract: This paper proposes a fractional observer-based sliding-mode control for a generalized nα -differentiator with the aim of achieving closed-loop asymptotic stability. The proposed methodology ...

Next November, Oregon voters will elect a U.S. senator, six members of Congress, governor, labor commissioner, 15 state senators and 60 state representatives, as well as hundreds of local ...