A system and method for synchronizing an allocation table with a purchase order in a computerized system. The method also includes calculating a nominal number of control vector symbols to allocate to control information based, at least in part, on the estimated number of data vector symbols and the determined number of bits in the one or more user data codewords. The base and the joining unit can have the turning angle adjusted up and down. The gap-controlling unit controls the size of the gap and moves at least one of the electrodes to adjust the size of the gap. The compressor includes a control system for moving the core of the electrovalve between the opening and closing positions based on the compressor speed andor on the cooling gas discharge temperature.