The invention relates to a hydraulic valve, which comprises an electromagnet with a magnet armature as well as the valve part with at least two valve seats. The light source device includes a light recycling system to reflect small-angle lights back to the light source, and a collection system for collecting and outputting large-angle lights. The simulation allows multiple continua to be co-located and multi-interacting, in that each continuum may have current and counter-current multiple multiphase exchanges with other continua. In some implementations, silicon is used as the electrochemically active material. The coordinator virtual device can be established by a virtual device configuration server which provides coordinator virtual device access to cluster nodes acting as virtual device configuration clients. Other systems and methods are disclosed.