Abstract:
Systems, methods, and apparatus for photonic crystals logic devices are disclosed. In one or more embodiments, a disclosed method for an optical logic device comprises radiating, by at least one source, at least one signal. The method further comprises reflecting at least one signal off of at least one photonic crystal, when at least one photonic crystal senses a physical phenomena of a threshold strength. Also, the method comprises not reflecting at least one signal off of at least one photonic crystal, when at least one photonic crystal does not sense the physical phenomena of the threshold strength. Further, the method comprises detecting or not detecting, by at least one detector, at least one signal.
Abstract:
A printed circuit board enclosure employs a box having an open base and opposing side plates. Securing tabs extend laterally from the side plates. The securing tabs have bottom surfaces that are coplanar extensions of a bottom surface of the box and are configured to be attached to the main circuit board. A cover is received on the box. The cover is configured to close the open top of the box. The cover has side flanges extending downwardly from a top plate with mating tabs extending laterally from the side flanges aligned with the securing tabs.
Abstract:
A method and system for fabricating a part includes sectionalizing a computer-generated representation of a part into strata having an order, forming layers corresponding to the strata from sheet material, stacking at least two of the layers in the order, and joining the layers together. The method and system are suitable for producing a phase-change material container for a thermal energy harvesting device, for example.
Abstract:
One aspect of the disclosure relates to an apparatus including an extrusion nozzle. The nozzle includes an inlet end, an outlet end opposite the inlet end and an axis extending between the inlet end and the outlet end. The extrusion nozzle is configured to rotate about the axis. The extrusion nozzle also includes a rotary drive engagement portion between the inlet end and the outlet end. The extrusion nozzle further includes a cavity including an inlet opening at the inlet end and an outlet opening at the outlet end. The inlet opening has a different configuration than the outlet opening.
Abstract:
Methods and an optical interrogation system for monitoring structural health of a structure are provided. The method includes generating an optical signal using an optical signal generator, and directing the optical signal towards at least one optical sensor located remotely from the optical signal generator. The optical sensor includes a photonic crystal wafer optically interacting with the optical signal and an environmental condition. The method also includes capturing, by an optical signal receiving apparatus, a reflected optical signal reflected from the at least one optical sensor, and analyzing the reflected optical signal to determine a change in the environmental condition.
Abstract:
A magnetically actuated photonic crystal sensor is disclosed. An optical fiber comprises at least one photonic crystal means coupled to a first end thereof, and a magnetic material coupled to the at least one photonic crystal means.