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 ...

Abstract: This study developed a local fixed-time sliding mode control (FTSMC) method based on a novel adaptive disturbance observer (NADOB) dedicated to motion tracking control for piezo-driven ...

In the last two printed editions of the Observer, meaning Jan. 29 and Feb. 5, our circulation has increased in a big way, thanks to our new delivery sponsorships. On about Jan. 29, 1,600 Halifax ...

The killings of Minneapolis residents Renee Good and Alex Pretti have inspired people across the US to document federal agents’ activities in their communities A community member films federal agents ...

The Border Patrol shooting death of a man who appeared to be filming federal agents in the moments before has sparked a surge of interest in citizen documentation. For months, Minnesota organizations ...