In one embodiment, one or more processor-readable media storing code representing instructions that when executed by one or more processors cause the one or more processors to receive a set of parameter values defining a boundary within a data space associated with a dataset. A filter element may be disposed within the filter case between the fuel inlet port and the fuel outlet port. The elongate member can be braced between, for example, a floor and a ceiling and the body is typically capable of longitudinal movement along an axis that is substantially parallel to a longitudinal axis of the elongate member. A field lens is positioned to focus an image of the targets onto the lens opening of the MUT. The transceiver has transmitting ports and receiving ports, and one of the transmitting ports is coupled to the switch unit, and one of the receiving ports is coupled to the switch unit. The single piece of material includes an integrated carriage rod.