Abstract: A sensor device (10) for photon-based imaging comprising one or more photon detectors configured to produce a plurality of photon detection signals in response to a plurality of photon detection events, wherein each photon detection event has a corresponding detection time and wherein the detection times of the plurality of photon detection events are distributed in accordance with a distribution over time; and processing circuitry configured to perform a sketching process using timing information of the plurality of photon detection events to obtain a compressed representation of the distribution over time, wherein the sketching process comprises: generating a plurality of feature values based on the timing information of the plurality of photon detection events using one or more feature functions; combining the generated plurality of feature values to obtain the compressed representation of the distribution over time, wherein the feature functions have one or more properties such that combining the pluralit

Abstract: A process for treating a water-acid mixture includes contacting the water-acid mixture with a hydrocarbon solvent to remove at least a portion of the acid from the mixture to produce a treated liquid. The ratio of the hydrocarbon solvent to water-acid mixture is between 2:1 and 5:1.

Abstract: A storage rack which may be attached to a support surface, such as a wall, so that one or more objects may be placed upon the rack to be stored upon the wall. The storage rack has a compact base with two or more pairs of peg holes, and two or more pegs that may be inserted into any selected pair of the holes. Objects to be stored are placed on and between the inserted pegs. The holes and pegs are threaded so that the pegs can be securely screwed into the holes. The peg holes may be at an upward angle in the base, and the pegs may be provided with irregular or scalloped surfaces better to hang items securely thereon, or with hooks or eyelets to improve their reliability and versatility. Peg segments may be connected in series to adjust the functional length of a particular peg.

Abstract: A storage rack which may be attached to a supporting surface, such as a wall, so that one or more objects may be placed upon the rack to be stored upon the wall. The storage rack has a compact base with two or more pairs of peg holes, and two or more pegs that may be inserted into any selected pair of the holes. Objects to be stored are placed on and between the inserted pegs. The pairs of holes are separated by different distances. The distance between inserted pegs can be adjusted to accommodate the object to be stored by choosing one or the other of the pairs of holes and then attaching the base to the wall with the chosen pair of holes in position to receive the pegs for use.

Abstract: A stand-alone centering device is provided for residential and commercial parking spaces to assist a motor vehicle operator in centering the motor vehicle in the space, the device consisting of a resilient floor marker which can be adhesively secured at or near an entrance end of the parking space and positioned such that the motor vehicle operator must align the left or right front tire of the vehicle to roll over the marker followed by the left or right rear tire of the vehicle in order to establish proper alignment of the vehicle in centered relation to the space. An additional marker may be positioned in predetermined relation to the front end of the space to indicate the forward end limit of travel.