Abstract: Described are methods and devices for the treatment of fecal matter. A column reactor is used to smolder fecal matter to produce and a volatile components stream and smoldered media. The volatile components stream may be subject to catalysis to reduce the emission of noxious substances and/or generate heat energy. Also described is the use of a turntable for removing smoldered media from the column reactor.

Abstract: A data computation rate is calculated for use by components in a computational data system. The data computation rate defines the frequency at which a computation, or other types of processing, is performed on or using certain data, such as a data value in a database. The data computation rate might be calculated based upon a current or historical data consumption rate that defines the frequency at which a consumer requests or has requested data, a data update rate that defines the current or historical frequency at which the data that is utilized to generate the processed data is or has been modified, a consumer-specified tolerance, and/or other information. The computed data consumption rate might then be utilized to specify the frequency at which the data should be processed by components in the computational data system.

Abstract: Apparatus for monitoring the hydrogen peroxide concentration in a sulfuric acid bath used to remove photoresist from semiconductor wafers uses the amount of bubbles in the fluid mixture to signal the addition of hydrogen peroxide. The bubbles are directly related to the hydrogen peroxide in sulfuric acid mixture. The bubbles are sensed by a light source and photoelectric sensor connected to a threshold adjustment control which controls a metering solenoid valve to add hydrogen peroxide from a reservoir to the bath when the bubbles decrease.