A method and apparatus for providing a zero dead time for flow analyzers, flow cytometers, and other measurement devices. Gallery images include identified objects, and a probe image includes an unidentified object. A cost-benefit qualifier module is provided that uses one or more generic algorithm and at least one separate record that characterizes power use and performance by the hardware element in relation to a Performance Power state of the selected energy-saving mechanism in order to determine an existence of an energy saving. The brush includes filaments, and the brush roller satisfies the inequation YX\u22662. A luminescent output from a reference luminophore located below the film is also measured to provide a measurement system independent of the illumination source used to produce the luminescent output. Performance of each drilling operation may be compared to the other drilling operations, and an improved aspect of a drilling operation may be output relative to the comparative performance of the drilling operations.