Abstract: In this paper, an observer that combines the design ideas of disturbance observer and state observer is proposed for fully actuated systems with external disturbances. The integral term is ...

AI-generated summary reviewed by our newsroom. Read our AI Policy. A new COVID-19 variant is on the rise across the country, named for the cicada, an insect that goes underground for long periods.

Justin Fairfax, Virginia’s former lieutenant governor, shot and killed his wife before killing himself, police said on Thursday. Fairfax in 2019 faced a sexual assault accusation by a former Duke ...

This paper tackles the security cooperative tracking control problem for uncertain heterogeneous nonlinear multi-agent systems (MASs) subject to denial-of-service (DoS) attacks. Since the ...

The pandemic is over, but the SARS-CoV-2 coronavirus continues to circulate, in the form of new variants. Currently, all eyes are on BA.3.2. His nickname: Cicada. This is no coincidence (see box).