A method for transmitting and receiving a precoded signal in a Multi-Input Multi-Output communication system is provided. The external portion of the housing unit includes a plurality of LED lights that light in accordance with the piston impinging the ground. The process may either be applied to a preformed material such as a rod or bar or sheet made from polyethylene resin or may be applied to a finished polyethylene part. The water guiding member has a groove and a plurality of increasingly conical orifices, the resilient element is accommodated in the groove and has a stopping plug pushed by the resilient element. A liquid product is removed from the system of distillation columns. The LC series resonant circuits include ground capacitors having signal-side electrodes.