Abstract: A waste gas treating apparatus including a discharge tube comprising a tubular container having a gas introduction opening and a gas leading opening and at least one pair of an anodes and a cathodes placed within the container, a dc or ac power supply connected to said electrodes, and a gas flow passage formed in the discharge tube whereinat least a pair of anodes is provided opposite to each other in the flow passage,at least a pair of cathodes is provided opposite to the anodes in a direction nearly at right angles to the anodes without contacting the anodes in a space including the pair of anodes;a set of electrodes is composed of said pair of anodes and said pair of cathodes;a part or the whole of said anodes and said cathodes are composed of a plurality of plates or pillars and they are electroconductively connected integrally; anda device for forming a magnetic field application device forming a dc or ac magnetic field in the opposing direction of the cathodes is fixed to the discharge tube.

Abstract: A waste gas treating apparatus including a discharge tube comprising a tubular container having a gas introduction opening and a gas leading opening and at least one pair of an anodes and a cathodes placed within the container, a dc or ac power supply connected to said electrodes, and a gas flow passage formed in the discharge tube whereinat least a pair of anodes is provided opposite to each other in the flow passage,at least a pair of cathodes is provided opposite to the anodes in a direction nearly at right angles to the anodes without contacting the anodes in a space including the pair of anodes;a set of electrodes is composed of said pair of anodes and said pair of cathodes;a part of the whole of said anodes and said cathodes are composed of a plurality of plates or pillars and they are electroconductively connected integrally; anda device for forming a magnetic field application device forming a dc or ac magnetic field in the opposing direction of the cathodes is fixed to the discharge tube.

Abstract: A tone pitch changing device comprising an operation content memory for storing the contents of an operation required for generating a sound having a pitch which belongs to one of a group of pitches, a frequency interval between each pair of adjacent pitches of each group being different among the groups of pitches, a group selecting unit for selecting and indicating one of the groups of pitches, an operation content reading unit for reading the contents of an operation, required for generating a sound having a pitch of the group selected and indicated by the group selecting unit, from the operation content storing unit, an operating unit for performing an operation in accordance with the contents of the operation read from the operation content reading unit, an operation result memory for storing the result of the operation performed by the operating unit, a pitch indicating unit for indicating a pitch of the group, and an operation result reading unit for reading the result of the operation performed with r

Abstract: A channel assigning system which divides musical tone generating channels into a plurality of channel division areas and assigns musical tone generating channels of each channel division area to musical tones, in an ascending order of a value of a weighting factor corresponding to each musical tone generating channel, by searching for a musical tone channel corresponding to the smallest value of the weighting factor. Alternatively, the channel assigning system assigns musical tones in a descending order of a value of a weighting factor corresponding to each musical tone generating channel, by searching for a musical tone channel corresponding to the largest value of the weighting factor.