Abstract: Technologies are described herein for conditioning fluids stored in an underwater cryogenic storage vessel designed for use in a fuel system of an underwater vehicle. According to one aspect of the disclosure, a fuel system includes a fuel cell and a storage vessel, which stores a first fluid that is supplied to the fuel cell and a second fluid that is produced by the fuel cell. The fuel system also includes a thermal conditioning module that receives the first fluid from the storage vessel and receives the second fluid from the fuel cell. The first fluid stored in the storage vessel is conditioned by absorbing heat from the second fluid, such that the fuel cell receives the conditioned first fluid. The second fluid received from the fuel cell is in gaseous state and is converted to a liquid. The liquid second fluid is stored in the storage vessel.

Abstract: A hydrogen pump comprises a pump housing and a heating mechanism. The pump housing receives liquid hydrogen through a housing inlet. The heating mechanism vaporizes the liquid hydrogen into gaseous hydrogen. The pump housing releases the gaseous hydrogen through a housing outlet at a predetermined pressure level of the gaseous hydrogen. The pump housing closes the housing outlet such as when the liquid hydrogen in the pump housing falls below a depletion level. The pump housing opens and additional liquid hydrogen enters the pump housing through the housing inlet.

Abstract: A lifter bar assembly for a crushing mill is disclosed including: a plurality of lifter bar segments; the segments being arranged to be installed adjacent to one another to form a lifter bar; wherein each of the segments are of a weight which can be safely handled by a team of two people.

Abstract: In one embodiment of the disclosure, an apparatus is provided for fueling a device using a cryogenic fluid. The apparatus may comprise: a cryogenic fluid supply container; a vessel connected to the supply container with an entrance valve to regulate flow of cryogenic fluid from the supply container; a heat transfer system capable of transferring heat from a device to the vessel to heat gas in the vessel; and an accumulator connected to the vessel with an exit valve to regulate flow of gas from the vessel to the accumulator. The accumulator may be capable of being connected to a device. In other embodiments, methods are provided of controllably mixing at least one fluid within a fluid mixing device.

Abstract: In one embodiment of the disclosure, an apparatus is provided for fueling a device using a cryogenic fluid. The apparatus may comprise: a cryogenic fluid supply container; a vessel connected to the supply container with an entrance valve to regulate flow of cryogenic fluid from the supply container; a heat transfer system capable of transferring heat from a device to the vessel to heat gas in the vessel; and an accumulator connected to the vessel with an exit valve to regulate flow of gas from the vessel to the accumulator. The accumulator may be capable of being connected to a device. In other embodiments, methods are provided of controllably mixing at least one fluid within a fluid mixing device.

Abstract: Technologies are described herein for storing fluid in an underwater cryogenic storage vessel designed for use in a fuel system of an underwater vehicle. According to one aspect of the disclosure, a storage vessel includes at least two concentrically arranged storage tanks, which includes a first storage tank and a second storage tank. The first storage tank surrounds the second storage tank, such that the first storage tank is configured to protect the second storage tank from external environmental conditions. The storage vessel also includes a storage compartment positioned adjacent to the two storage tanks. In one embodiment, the storage vessel may be an underwater cryogenic storage vessel that stores liquid oxygen used as a reactant in a fuel cell and liquid carbon dioxide, which is an effluent of the fuel cell.

Abstract: A lifter bar is includes at least one attachment formation for use in lifting the lifter bar; wherein the at least one attachment formation is embedded in the lifter bar. A method of producing the lifter bar and tools for use in handling the lifter bar are also described.

Abstract: A thermodynamic pump for provides gaseous hydrogen employing a plurality of liquid hydrogen (LH2) tanks sequentially pressurized with gaseous hydrogen (GH2) from an accumulator. A heat exchanger receiving LH2 from each of the plurality of tanks as sequentially pressurized returns pressurized GH2 to the accumulator for supply to an engine.

Abstract: A lifter bar assembly for a crushing mill is disclosed including: a plurality of lifter bar segments; the segments being arranged to be installed adjacent to one another to form a lifter bar; wherein each of the segments are of a weight which can be safely handled by a team of two people.

Abstract: A hydrogen pump comprises a pump housing and a heating mechanism. The pump housing receives liquid hydrogen through a housing inlet. The heating mechanism vaporizes the liquid hydrogen into gaseous hydrogen. The pump housing releases the gaseous hydrogen through a housing outlet at a predetermined pressure level of the gaseous hydrogen. The pump housing closes the housing outlet such as when the liquid hydrogen in the pump housing falls below a depletion level. The pump housing opens and additional liquid hydrogen enters the pump housing through the housing inlet.

Abstract: In one embodiment of the disclosure, an apparatus is provided for fueling a device using a cryogenic fluid. The apparatus may comprise: a cryogenic fluid supply container; a vessel connected to the supply container with an entrance valve to regulate flow of cryogenic fluid from the supply container; a heat transfer system capable of transferring heat from a device to the vessel to heat gas in the vessel; and an accumulator connected to the vessel with an exit valve to regulate flow of gas from the vessel to the accumulator. The accumulator may be capable of being connected to a device. In other embodiments, methods are provided of controllably mixing at least one fluid within a fluid mixing device.

Abstract: An active coating system capable of collecting, analyzing, managing and adapting to data and/or its environment in real time. An exemplary embodiment of our inventive active coating system is corrosion resistant and includes a flexible sensor layer, a switch layer and a visual display layer. Operationally, the flexible sensor layer senses particular environmental conditions and the visual display layer provides visual indication of the condition(s) sensed.

Abstract: Catalysts have a catalytic substrate impregnated with a catalytically active metal, and are prepared by adjusting the pH of a solution of catalytic metal ions to precipitate a layer of catalytic metal on the support.

Abstract: An educational content communications system that provides a system and method for creating, processing and managing educational content so that students, teachers, parents, and administrators (including staff) can better access, share, create, input, manage, store and/or deliver educational content. The educational content communication system is designed with the capability to create, process and manage educational content within a school, within and between a system of schools, within and between a community of schools, and within and between third-party providers of educational content.

Abstract: An educational content communications system that provides a system and method for creating, processing and managing educational content so that students, teachers, parents, and administrators (including staff) can better access, share, create, input, manage, store and/or deliver educational content. The educational content communication system is designed with the capability to create, process and manage educational content within a school, within and between a system of schools, within and between a community of schools, and within and between third-party providers of educational content.

Abstract: An adaptive cruise control system 1 for a vehicle 3, is capable of operating in at least two modes, a Cruise mode in which the speed of the vehicle 3 is controlled to maintain a set speed, and a Follow mode in which the speed of the vehicle 3 is controlled to maintain a set distance from the preceding target vehicle 5. The system 1 includes means 7 to switch from Cruise mode to Follow mode if a target vehicle 5 is detected within a predetermined distance 9 of the vehicle 3, and a driver display interface 11 for displaying the mode of operation of the adaptive cruise control system 1. A change anticipation system 13 detects when the system operation is about to change mode from Cruise to Follow and causes the display interface 11 to display to the driver that the mode change is about to occur, prior to the system change to allow the driver to take avoiding action.