A method for forming activated carbon comprises forming a feedstock mixture from a carbon feedstock and a chemical activating agent, and heating the feedstock mixture with microwaves in a plurality of successive heating steps to react the carbon feedstock with the chemical activating agent and form activated carbon. In response to the attempt succeeding and the named object being created, the candidate identifier is used as an identifier for the process. The second middle portion of the second terminal extends obliquely and has parallel edges being non-parallel to the edges of the first middle portions. Since the received signal need not be stored, the memory requirements of the positioning function are significantly reduced if aiding data is available. A peripheral portion of the floor mat can be engaged to a door sill for maintaining the position of the floor mat. The present invention offers a method for environmental monitoring and analyzing.