Glutaminase is purified from an Aspergillus oryzae, its partial amino acid sequence is determined, a partial sequence of glutaminase gene is obtained by PCR based on the obtained information, and DNA fragments containing glutaminase gene from Aspergillus oryzae genomic library and cDNA library, and Aspergillus nidulans genomic library hybridization using the partial sequence as a probe. The acoustic emission generated by polymer formation is detected by one or more acoustic sensors attached to a piece of equipment. The ADC is operable to directly sample an RF signal independent of a band pass filter and convert the RF signal to a digital signal. As each spot corresponds to a particular geographic region, different input parameters may be used, thereby maximizing efficiency. The waste water is introduced into an adsorbing tank that is filled with a zeolite, only nitrogen components are adsorbed by the zeolite, a solution containing hypochlorous acid or hypobromous acid is introduced into the adsorbing tank, and the nitrogen adsorbed in the zeolite is decomposed by the hypochlorous acid or the hypobromous acid. On the other hand, the first and second voltage-dividing capacitors are connected in series between the second and first power terminals in odd cycles, which occur alternately with the even cycles.