Abstract:
A hydrogen generating apparatus includes a chemical reaction chamber, a chemical solution reservoir, an unpowered pressure-producing member for moving a chemical solution from the chemical solution reservoir to the chemical reaction chamber, and a catalyst bed in the chemical reaction chamber.
Abstract:
A screen has an active material, having at least one optical property responsive to an electric field, disposed between electrodes, and a controller coupled to at least one of the electrodes for controlling the electric field in response to a signal received by the controller.
Abstract:
An enhanced-contrast projection screen and method of controlling such screens are disclosed. An embodiment of a dynamic projection screen includes a passive layer and at least one active layer. The active layer is superimposed on at least a portion of the passive layer and is adapted to selectively toggle between being transparent and being opaque. A method of controlling such a screen includes determining desired dimensions of a reflective region, and activating at least a portion of an active layer superimposed on at least a portion of a passive layer. The active layer is adapted to selectively toggle between being transparent and opaque.
Abstract:
A method of conveying information to an interrogator includes the interrogator sensing the presence of a resonant radio frequency circuit that is tuned to a first resonant frequency. Responsive to a parasitic radio frequency circuit being brought to within a parasitic coupling distance of the resonant radio frequency circuit, the interrogator senses a shift in the resonant frequency of the resonant radio frequency circuit, wherein the shift in the resonant frequency conveys information to the interrogator
Abstract:
A fuel storage device in accordance with a present invention includes a fuel storage area and at least one of a fuel heater, a byproduct heater and a valve.
Abstract:
A sensor/switching device configuration that includes a substrate and at least one element imprinted on the substrate containing an electroconductive material.
Abstract:
A motor hub is disclosed. The motor hub comprises a housing for a motor. The housing is rotatable around an axis of rotation of the motor. The motor hub also has marks arranged on a surface of the housing, and spaces between the marks. The marks and spaces form a pattern readable for sensing a rotational speed of the motor.
Abstract:
A projection screen unit includes a first projection surface optimized for a predetermined range of ambient conditions and a second projection surface optimized for a second, different range of ambient conditions.
Abstract:
A method for forming a powder phosphor electroluminescent display includes forming a dielectric film on a plurality of sides of an uncoated phosphor layer, wherein the dielectric film is formed via a polymer multilayer process.
Abstract:
Solid freeform fabrication systems, powder supply bins for solid freeform fabrication systems, and methods of solid freeform fabrication are disclosed. One exemplary solid freeform fabrication system includes a powder supply bin, a build bin, a roller, and a print head disposed above the build bin that deposits a binder onto the powder in the build bin in a preselected pattern, the supply bin and/or the build bin translating in a x- and/or y-direction relative to the print head.