Abstract: A system for releasably engaging equipment to the rear of a snow plow blade comprises a receiving location on a rear side of a snow plow blade, the receiving location comprising first and second ramp structures that define inclined ramps, and a retaining structure disposed between and above the ramp structures. The retaining structure is shaped and dimensioned such that, when the piece of equipment is in the receiving location, the retaining structure releasably engages a cross member structure of the equipment to suspend the piece of equipment above the ground via the cross member structure.

Abstract: A method (20) of making a fuel is disclosed. The method has a first step of exposing a liquid having biologically derived particles therein to an ultrasonic wave producing cavitation in the liquid and release of a precursor of the fuel from at least some of the particles into the liquid (22). The method also comprises the step of exposing the liquid with another ultrasonic wave insufficient to produce substantial cavitation in the liquid, the another ultrasonic wave providing a reaction between the liquid and the precursor to form the fuel (24).

Abstract: There is provided a system for releasably engaging equipment to the rear of a snow plow blade. In one embodiment, there is provided a system comprising a receiving location on a rear side of a snow plow blade, the receiving location comprising first and second ramp structures that define inclined ramps, and a retaining structure disposed between and above the ramp structures. The retaining structure is shaped and dimensioned such that, when the piece of equipment is in the receiving location, the retaining structure releasably engages a cross member structure of the equipment to suspend the piece of equipment above the ground via the cross member structure.

Abstract: Ulstrasound typically in the range 15 KHz to 1 MHz and at a power of about 100 watts over a zone of a few sq. cm is applied via a horn shaped cavity of a transmitter for processing a fluid medium, for example for processing a body of liquid having a foaming surface layer whereby the foaming can be quelled rapidly.

Abstract: A method (20) of making a fuel is disclosed. The method has a first step of exposing a liquid having biologically derived particles therein to an ultrasonic wave producing cavitation in the liquid and release of a precursor of the fuel from at least some of the particles into the liquid (22). The method also comprises the step of exposing the liquid with another ultrasonic wave insufficient to produce substantial cavitation in the liquid, the another ultrasonic wave providing a reaction between the liquid and the precursor to form the fuel (24).

Abstract: Ulstrasound typically in the range 15 KHz to 1 MHz and at a power of about 100 watts over a zone of a few sq. cm is applied via a horn shaped cavity of a transmitter for processing a fluid medium, for example for processing a body of liquid having a foaming surface layer whereby the foaming can be quelled rapidly.