Winter Bird WalkJoin us as we search for flocks of winter sparrows, bright yellow warblers, and perhaps and elusive red sapsucker. We also hope to welcome some of our earliest migrating hummingbirds back to the garden this month! Led by Ornithologist Chris Carmichael.
Where: BerkeleyCost: $20 General, $18 Members
Traffic Congestion Control: A PDE backstepping perspectiveControl of freeway traffic using ramp metering is a "boundary control" problem when modeling is approached using widely adopted coupled hyperbolic PDE models of the Aw-Rascle-Zhang type, which include the velocity and density states, and which incorporate a model of driver reaction time. Unlike the "free traffic" regime, in which ...
