Techniques are described for producing a signal having a desired frequency. According to the invention, copper is grown within the openings in a patterned coating. Two fingers of the left hand are inserted in finger insertion openings formed from a belt body attached on the wrapping container, the wrapping container is separated into the sections along a separation part by opening these fingers to the left and right, and in this state, the action for applying the interlabial pad held on a finger of the right hand is performed. A variable speed drive, programmable controller, flow signals, and static pressure and total pressure signals are utilized to modulate the speed of the fan and the area of the exhaust stack to maintain the desired fan inlet pressure and exhaust velocity. The faceplate includes a ball contact surface and a mounting surface engaging the cavity and having internally threaded female connectors. The air quantity supplied to the internal combustion engine is controllable by a first actuator, andor the fuel quantity supplied to the internal combustion engine is controllable by a second actuator in at least two operating modes.