Abstract: An uncrewed aerial vehicle (UAV) configured and operable for controllable flight, including autonomous flight. A generally planar body defining opposing front and back planar surfaces includes a plurality of circular duct openings provided in the planar body extending between the opposing front and back surfaces. A plurality of rotor guard assemblies are provided wherein each respective rotor guard assembly is configured for detachable engagement with a respective duct opening. A rotor is respectively rotatably mounted in each respective duct opening of the plurality of duct openings whereby each rotor is configured for providing propulsion of the UAV planar body. An electronic controller is operatively coupled to each rotor for controlling rotation of each rotor wherein the electronic controller is configured to enable flight of the UAV via a single hand-throw from a user operator of the UAV.

Abstract: A heat exchange system includes an electrode configured to electrostatically control a flow of a heated gas stream in the vicinity of a heat transfer surface and/or a heat-sensitive surface.

Abstract: A variety of applications of the integration of lenses and lens arrays into clothing, eyewear, and other worn articles so as to enhance or alter the appearance of a wearer are disclosed.

Abstract: According to an embodiment, combustion in a combustion volume is affected by at least two sequentially applied non-parallel electric fields. According to an embodiment, a combustion volume is equipped with at least three individually modulatable electrodes. According to an embodiment, an electric field application apparatus for a combustion volume includes a safety apparatus to reduce or eliminate danger.

Abstract: A variety of applications of the integration of lenses and lens arrays into clothing, eyewear, and other worn articles so as to enhance or alter the appearance of a wearer are disclosed.

Abstract: A method of producing a slow-setting, workable aqueous phosphate cement mixture, including providing a first cementitious constituent, providing a second cementitious constituent adapted to combine with the first cementitious constituent to produce an aqueous phosphate cement mixture, providing a volatile organic retardant, and mixing the first cementitious constituent, the second cementitious constituent, and the volatile organic retardant to yield a slow-setting phosphate cement mixture. The volatile organic retardant may be selected from the group including acetone, ethanol, methanol, and isopropanol.

Abstract: A heat exchange system includes an electrode configured to electrostatically control a flow of a heated gas stream in the vicinity of a heat transfer surface and/or a heat-sensitive surface.

Abstract: A variety of applications of the integration of lenses and lens arrays into other materials such as packaging and clothing so as to enhance the appearance of objects such as merchandise and people are disclosed.

Abstract: According to an embodiment, combustion in a combustion volume is affected by at least two sequentially applied non-parallel electric fields. According to an embodiment, a combustion volume is equipped with at least three individually modulatable electrodes. According to an embodiment, an electric field application apparatus for a combustion volume includes a safety apparatus to reduce or eliminate danger.

Abstract: A variety of applications of the integration of lenses and lens arrays into other materials such as packaging and clothing so as to enhance the appearance of objects such as merchandise and people are disclosed.

Abstract: A variety of applications of the integration of lenses and lens arrays into other materials such as packaging and clothing so as to enhance the appearance of objects such as merchandise and people are disclosed.

Abstract: A collapsible workstation includes a seat and table. The table is connected to the seat and defines a working surface adapted for supporting articles above the lap of a user in an in-use position spaced apart from the seat. The table is movable from the in-use position to a non-use collapsed position adjacent the seat for storage and transport. An elongated connecting arm interconnects the seat and the table to enable movement of the table between the in-use position and the non-use collapsed position.

Abstract: A collapsible workstation includes a seat and table. The table is connected to the seat and defines a working surface adapted for supporting articles above the lap of a user in an in-use position spaced apart from the seat. The table is movable from the in-use position to a non-use collapsed position adjacent the seat for storage and transport. An elongated connecting arm interconnects the seat and the table to enable movement of the table between the in-use position and the non-use collapsed position.

Abstract: Acoustic devices, attached to fishing nets, reduce or avoid by-catch of marine animals during fishing operations. The acoustic devices emit a deterrent signal to a particular marine animal on actuation by the approach of the animal. At least one of the devices is an active device that detects marine animal emitted stimuli and responds with a suitable response emission.