A transportable container for electrical devices having aluminum bottom, top and end panels. The device further includes a plurality of identical guide plates connected to each other by attachment means. A determination is made as to whether at least two identifiers embodied in a corresponding at least two data signals transmitted over at least two power lines are the same. The energy-ray curable acrylic copolymer further includes a side chain with an unsaturated group. The base station receives the rates from the wireless units seeking to send data over the shared channel and selects a wireless unit to use the shared channel. The temperature andor pressure of the compressed CO2 may be varied during the fabrication process to improve the molecular packing density of the monolayer.