In a MIMO wireless communication system, a plurality of base stations are provided each of which can transmit signals to, and receive signals transmitted from, one or more user equipments. The system uses stationary receivers and stationary transmitter tags coupled to the stationary receivers and a mobile transmitter tag coupled to the mobile target. The heat dissipating layer has a high thermal conductivity. Related products may be stabilized with the same or similar protecting groups. Using this method will also enable manufacturers of shelf-stable fruit and vegetable products to use IQF ingredients in continuous year-round production. Elapsed time between the time information stored in the storing means and the current time is calculated when a user gives the printer an instruction to start printing operations.