Abstract:
Disclosed embodiments include nuclear fission reactor cores, nuclear fission reactors, methods of operating a nuclear fission reactor, and methods of managing excess reactivity in a nuclear fission reactor.
Abstract:
A nuclear fission reactor, flow control assembly, methods therefor and a flow control assembly system. The flow control assembly is coupled to a nuclear fission module capable of producing a traveling burn wave at a location relative to the nuclear fission module. The flow control assembly controls flow of a fluid in response to the location relative to the nuclear fission module. The flow control assembly comprises a flow regulator subassembly configured to be operated according to an operating parameter associated with the nuclear fission module. In addition, the flow regulator subassembly is reconfigurable according to a predetermined input to the flow regulator subassembly. Moreover, the flow control assembly comprises a carriage subassembly coupled to the flow regulator subassembly for adjusting the flow regulator subassembly to vary fluid flow into the nuclear fission module.
Abstract:
A nuclear fission reactor fuel assembly adapted to permit expansion of the nuclear fuel contained therein. The fuel assembly comprises an enclosure having enclosure walls to sealingly enclose a nuclear fuel foam defining a plurality of interconnected open-cell voids or a plurality of closed-cell voids. The voids permit expansion of the foam toward the voids, which expansion may be due to heat generation and/or fission gas release. The voids shrink or reduce in volume as the foam expands. Pressure on the enclosure walls is substantially reduced because the foam expands toward and even into the voids rather than against the enclosure walls. Thus, the voids provide space into which the foam can expand.
Abstract:
Embodiments include a medical device, an apparatus, and a method. The medical device includes a tube portion shaped and sized for airway passage insertion and having at least one pathway therethrough; and a stylet of at least one shape-transforming material, configured for insertion in one of said at least one pathway; and at least one sensor carried by the tube portion and the stylet. The apparatus includes a stylet having a first end and a second end, at least a portion of the stylet including a shape-transforming material, the stylet being configured for insertion through an airway intubation structure having at least one pathway therethrough; and at least one sensor carried by the stylet in a proximity to the first end. The method includes capturing an image adjacent to an airway tube proximate to an airway passage; and actuating, in response to the image, at least one shape-transformation of the airway tube.
Abstract:
A system for directing a bird away from equipment includes an emitter configured to transmit a beam of audio-modulated ultrasonic sound. The beam of audio-modulated ultrasonic sound is configured to frequency down-convert in the atmosphere to produce a specified audible sound for a bird at a selected distance away from the emitter.
Abstract:
One or more human attributes extracted from a micro-impulse radar (MIR) signal is correlated to a temporary identity or phenotypic identity of a person.
Abstract:
Disclosed embodiments include nuclear fission reactor cores, nuclear fission reactors, methods of operating a nuclear fission reactor, and methods of managing excess reactivity in a nuclear fission reactor.
Abstract:
One or more micro-impulse radars (MIRs) are configured to determine the movement of at least one person. Media can be output to the person responsive to the movement.