Control strategies for nonlinear systems address the challenge of guiding systems whose behaviour cannot be approximated by simple linear relationships. Classical linear control techniques often fail ...

In this study, a novel nonlinear PID controller is developed for a class of second-order nonlinear systems subject to uncertainties and external disturbances. The proposed control architecture ...

Imagine standing on top of a mountain. From this vantage point, we can see picturesque valleys and majestic ridges below, and streams wind their way downhill. If a drop of rain falls somewhere on this ...

Physicists have long been drawn to the nonlinear Hall effect: a subtle variant of the classical Hall effect, in which an ...

Frank Merle is used to confronting a messy world. He works on the mathematics of highly nonlinear systems—ones that respond in dramatic, unpredictable ways to even the smallest changes. It’s the same ...