Abstract: Hybrid bonded turbine rotors and methods for manufacturing the same are provided.

Abstract: Turbine assemblies and related turbocharger systems having direct turbine interfaces are provided. One exemplary turbine assembly includes a first turbine housing having an outlet portion defining a fluid outlet of a first turbine and a second turbine housing having an inlet portion defining a fluid inlet of a second turbine, wherein at least a portion of the outlet portion radially surrounds at least a portion of the inlet portion to provide a direct interface from the fluid outlet of the first turbine to the fluid inlet of the second turbine in an axial direction.

Abstract: An improved AM OLED pixel circuit and method of wide dynamic range dimming for AM OLED displays are disclosed that maintain color balance throughout the dimming range, and also maintain the uniformity of the luminance and chromaticity of the display at low gray-levels as the display is dimmed to lower luminance values. As such, AM OLED displays can meet the stringent color/dimming specifications required for existing and future avionics, cockpit, and hand-held military device display applications. Essentially, the OLED pixel circuit and method of dimming that are disclosed use Pulse Width Modulation (PWM) of the OLED pixel current to achieve the desired display luminance. Two example circuits are disclosed that externally PW modulate the common cathode voltage or common power supply voltage to modulate the OLED current in order to achieve the desired display luminance.

Abstract: Embodiments of isolators, such as three parameter isolators, including a main spring linear guide system are provided. In one embodiment, the isolator includes first and second opposing end portions, a main spring mechanically coupled between the first and second end portions, and a linear guide system extending from the first end portion, across the main spring, and toward the second end portion. The linear guide system expands and contracts in conjunction with deflection of the main spring along the working axis, while restricting displacement and rotation of the main spring along first and second axes orthogonal to the working axis.

Abstract: Systems, methods, and devices for an intrusion detection system are described herein. For example, one or more embodiments include transmitting a DSSS signal, receiving a reflected DSSS signal from a target, correlating the reflected DSSS signal and the transmitted DSSS signal, and determining a distance to the target based on the correlation between the reflected DSSS signal and the transmitted DSSS signal.

Abstract: Motion de-blurring systems and methods are described herein. One motion de-blurring system includes an image sensing element, one or more motion sensors in an imaging device, a lens element that undergoes motion during a capture of an image by the sensing element, and a de-blurring element to de-blur the image captured by the sensing element via de-convolving a Point Spread Function (PSF).

Abstract: The present invention relates, in part, to cleaning methods and solvent cleaning compositions including at least one hydrofluoro-olefin or hydrochlorofluoro-olefin solvent for use in connection with cleaning of metal parts, and in certain preferred embodiments cleaning metal parts to be used in an aircraft.

Abstract: A flexible conduit fitting system includes a housing that defines at least part of a flexible conduit fitting, and a resilient clip supported by the housing. The flexible conduit fitting may include an aperture for receiving an end of a flexible wiring conduit. The resilient clip may have an engagement portion that extends into the aperture of the flexible conduit fitting to engage the generally corrugated outer structure of the flexible wiring conduit. The housing may be configured to support the resilient clip in a manner that allows the resilient clip to flex in a direction of movement of the flexible wiring conduit when the flexible wiring conduit is being inserted into the aperture and past the engagement portion, but to not substantially flex in the direction of movement of the flexible wiring conduit when attempting to withdraw the flexible wiring conduit from the aperture.

Abstract: An auto changeover mechanism for a thermostat. A heat and cool mode auto changeover with single or crossed setpoints may be an approach for doing a single setpoint auto changeover, an approach that can handle auto changeover with separate heat and cool setpoints that do not require the cool setpoint to always be higher than the heat setpoint, and also an approach that does not necessarily require a dead band between the setpoints. A hysteresis may be associated with switching to the other mode. The thermostat having the auto changeover mechanism may have a display of a mode that automatically changes between heat and cool.

Abstract: Methods, devices, and systems for managing access rights are described herein. One method includes receiving, by a mobile device, information from a passive tag located at an entrance to an area, wherein the information includes identification information for the entrance, sending, by the mobile device to a computing device of an access control system associated with the area, the information from the passive tag and a request to access the area, and granting, by the computing device of the access control system, access to the area based on the information from the passive tag and the request to access the area.

Abstract: A technique of forming a carbon-carbon composite material includes infusing a liquid carbonizable precursor into a porous preform, and the infused precursor is subsequently pyrolyzed to convert the precursor to isotropic carbon. The preform then can be densified with a densifying agent, followed by infusion of the liquid carbonizable precursor into the densified preform. In some examples, after pyrolyzing the liquid carbonizable precursor, isotropic carbon extends substantially throughout a volume of the carbon-carbon composite material.

Abstract: A remote computing system is described that includes at least one processor and at least one module. The at least one module is operable by the at least one processor to receive first operational data collected by a first line-replaceable-unit of a first aircraft during flight operations of the first aircraft, and receive second operational data collected by at least one second line-replaceable-unit of at least one second aircraft during flight operations of the at least one second aircraft. The at least one module is further operable by the at least one processor to predict, based at least in part on the first operational data and the second operational data, a failure condition associated with the first line-replaceable-unit of the first aircraft, and output, based on the impending failure condition, an indication of the predicted failure condition.

Abstract: A system and method are provided for programming a flight management system in response to a voice input. The voice input is validated (the pilot spoken vocabulary is thereby filtered (e.g., adapted) to improve recognition accuracy and reduce false positives) by comparing the current operational state of the aircraft (for example, climb, level flight, descent, speed, altitude, and heading), operation validities and availabilities (for example, operations allowed and not allowed) based on the flight management system planned and predicted lateral and vertical trajectory of the flight route (flight plan) from origin/present position to destination, and the requested action being taken.

Abstract: Systems and methods for a ring laser gyroscope with electrically isolated dither motor are provided. In one embodiment, a ring laser gyroscope, the gyroscope comprises: a laser block comprising a discharge gas filled chamber ring, a cathode, an anode and at least one other electrode; a dither motor mechanically coupled to the laser block and to a sensor chassis, wherein the laser block is secured to the sensor chassis by the dither motor; and an electrical isolator positioned between the dither motor and the laser block, wherein the electrical isolator electrically isolates the dither motor from the sensor chassis.

Abstract: The invention provides polyurethane and polyisocyanurate foams and methods for the preparation thereof. More particularly, the invention relates to open-celled, polyurethane and polyisocyanurate foams and methods for their preparation. The foams are characterized by a fine uniform cell structure and little or no foam collapse. The foams are produced with a polyol premix composition which comprises a combination of a hydrohaloolefin blowing agent, a polyol, a silicone surfactant, and a sterically hindered amine catalyst.

Abstract: An electric taxi system (ETS) for an aircraft may include an electric motor positioned on a landing gear assembly of the aircraft; and one or more selectively operable engaging members for selectively coupling the ETS with a wheel of the aircraft. The engaging members may be drivably coupled to the electric motor. The engaging members may each have a base member and a leading end. An axis of the base member and an axis of the leading end may be in straight-line alignment upon initial engagement of the engaging member with the wheel. The axes of the leading end and the base member may displaced from a straight-line alignment responsively to lateral forces exerted on the leading end resulting from deflections of the wheel during taxiing of the aircraft.

Abstract: Devices, methods, and systems for noise cancellation for voice activation are described herein. For example, one or more embodiments include determining, with a computing device, whether a background noise received with the computing device is recognized, creating a stored noise cancellation filter based on the background noise when the background noise is not recognized, receiving a signal that includes the background noise and a voice command at the computing device, filtering out the background noise from the signal with the stored noise cancellation filter, and processing the voice command.

Abstract: Devices, methods, and systems for cavity-enhanced spectroscopy are described herein. One system includes an optical frequency comb (OFC) coupled to a laser source, and a cavity coupled to the OFC comprising a number of mirrors, wherein at least one of the number of mirrors is coupled to a piezo-transducer configured to alter a position of the at least one of the number of mirrors.

Abstract: An aircraft system for an own-ship aircraft includes an ADS-B unit configured to receive ADS-B messages with flight information from other aircraft over a plurality of time periods, the other aircraft including a first aircraft. The system further includes a database configured to store at least a portion of the flight information associated with the other aircraft over the plurality of time periods. The system further includes a processing unit configured to compare the flight information for a current time period to the flight information for a previous time period to identify missing flight information from the current time period relative to the previous time period, the missing flight information including the flight information associated with the first aircraft, and initiate an annunciation to an operator of the own-ship aircraft based on the missing flight information associated with the first aircraft.

Abstract: A gearbox for driving a sprocket includes a gear train and an output shaft assembly positioned between the gear train and a power output end of the gearbox. The output shaft assembly includes, a first shaft segment extending to the power output a second shaft segment coupled to the gear train and a torsion spring interposed between the first shaft segment and the second shaft segment. Upon non-conjugate meshing of the sprocket, the torsion spring expands and contracts so that the angular velocity of the second shaft segment differs from the angular velocity of the first shaft segment.