Abstract: Described herein are various systems and processes for vehicles for delivery of real-time, on-demand orders for perishable goods, and operations thereof. The vehicles may each include a plurality of different modules that couple to a chassis. The modules may include battery modules, drive modules, cargo modules, and other modules. Each drive module may include wheels and motors and steering mechanisms that control the wheels. A plurality of such modules may be disposed on the chassis. The modules may be disposed on different portions of the chassis and be given different operational commands accordingly. Furthermore, operation of the vehicle may be adjusted based on the cargo carried by the vehicle.

Abstract: Electroactive transducers as well as methods of producing a haptic effect in a user interface device simultaneously with a sound generated by a separately generated audio signal and electroactive polymer transducers for sensory feedback applications in user interface devices are disclosed.

Abstract: The present invention provides optical systems, devices and methods which utilize one or more electroactive polymer actuators to adjust an optical parameter of the optical device or system.