Constrained Controllability Of Linear Impulse Differential Systems

We consider the following linear impulse differential control system [formula Omitted] where the control sequences uk belong to some set of admissible controllers that is restricted either by norm or by range. We then give a necessary and sufficient condition for global null controllability of time-varying systems and some sufficient conditions for global null controllability for time-invariant systems with special structures. © 1994 IEE

Abstract-We system Constrained Controllability of Linear Impulse IMerential Systems

consider the following linear impulse differential contro

Elastic Deformation in Ceria Nanorods via a Fluorite-to-Rutile Phase Transition

Atomistic simulations reveal that ceria nanorods, under uniaxial tension, can accommodate over 6% elastic deformation. Moreover, a reversible fluorite-to- rutile phase change occurs above 6% strain for a ceria nanorod that extends along [110]. We also observe that during unloading the stress increases with decreasing strain as the rutile reverts back to fluorite. Ceria nanorods may find possible application as vehicles for elastic energy storage