Parking area 10 has several rows of parking spaces 12 which are managed by parking area server 14. A conduit is generally configured to place the fluid delivery module in fluid communication with the handpiece assembly. By interconnecting an output-side conducting circuit provided to the optical communication apparatus and an input-side conducting circuit provided to the other communication apparatus, a detection circuit is constituted. Each client receives the broadcasted meta-data from and sends back a set of client demand feedback data to the operations center, wherein the user feedback data reflects a client’s interest level in at least a portion of the pieces of content. An ejector control member at least substantially surrounding the shaft is axially movable by hand. The dielectric ceramic contains the components R and M at about 70% or more of analysis points in grain boundaries.