A compressor is provided in which a rotary member suspended on a stationary member is rotated to compress a refrigerant. In particular the invention relates to gate electrodes and the formation of precision layers in semiconductor structures comprising a substrate and an elongated structure essentially standing up from the substrate. The image data are compressed and organized and stored in packets with specific parameters such that access to individual packets is possible; and the packetized data are decompressed packet-by-packet based on a request from a user workstation, such that multi-component images are generated with progressive parameters. The braking module slows the vehicle.