The optimal linear quadratic controller is usually designed based on a Riccati equation. However, when the Riccati is irregular, the problem becomes much more difficult since it is not clear what ...

In this paper, we design an active four-wheel steering optimal controller with linear quadratic regulator (LQR), and optimize it using an improved particle swarm algorithm (PSO) for the difficult ...

As adults, these large snakes are better known for their slow, lumbering gait, but the researchers discovered that young ...

In a review just published in Nature Materials, researchers take aim at the oldest principle in electronics: Ohm's law.