Abstract: Systems and methods for strobe-light-based navigation are provided.

Abstract: A turning grating coupler device comprises a waveguide core layer including a grating structure and an output slab adjoined with the grating structure. The grating structure comprises an array of sub-waveguides substantially parallel to each other along a first propagation direction. Each of the sub-waveguides has opposing sidewalls, and a width of each sub-waveguide is defined by a distance between the sidewalls. The width of each sub-waveguide is varied such that each of the sidewalls has a periodic structure that produces a sidewall periodic modulation that is out of phase with respective sidewall periodic modulations of adjacent neighboring sub-waveguides. An input edge is configured to receive a light beam from a source and direct the beam into the array of sub-waveguides in the first propagation direction. The sub-waveguides are configured to diffract the beam into the output slab in a second propagation direction substantially perpendicular to the first propagation direction.

Abstract: A method for mixing, milling, and coating a plurality of constituents comprises placing the constituents in a container that includes a cylindrical inner surface; applying a first vibration to the container such that a motion of the vibration is parallel to a longitudinal axis of the container; and applying a second vibration to the container such that the motion of the vibration is not parallel to the longitudinal axis of the container.

Abstract: A shuttle (20) for a climbing protection system (10) is provided and includes a clamping member (26) mounted on a frame (22) for movement between a an opening position, a free position wherein the shuttle (20) can move freely along an elongate support member (12), and a clamping position wherein the clamping member (26) resists movement of the shuttle (20) relative to the elongate support member (12), and an anti-inversion member (30) mounted on the frame (22) for movement between a first closed position blocking insertion of the elongate support member (12) and an open position where the anti-inversion member (30) does not block insertion of the elongate support member (12).

Abstract: Systems and methods for determining accuracy of a smoothed navigation solution using filtered resets are provided. In certain embodiments, a navigation system includes one or more inertial devices configured to detect motion of the system and generate inertial data; and one or more aiding devices configured to generate aiding device measurement data. Further, the navigation system includes one or more processors configured to generate an un-smoothed navigation solution based on the inertial data and the aiding device measurement data, wherein the un-smoothed navigation solution includes an un-smoothed navigation error estimates for a state variable. Further, the one or more processors are configured to calculate a smoothed navigation error estimate for the state variable based on the un-smoothed navigation error estimate.

Abstract: Systems and methods for 5G based landing, navigation, and position augmentation are described herein. In one example, a method includes receiving 5G signals from a plurality of 5G base station and processing the received 5G signals from a plurality of 5G base stations to obtain 5G position information. The method further includes receiving position correction information for the 5G position information from a ground reference station. The method further includes determining a position of a vehicle based on the 5G position information and the position correction information. The method further includes providing navigation guidance to the vehicle based on the determined position of the vehicle.

Abstract: Systems and methods for a tightly coupled trajectory predictor with constant up-finding are provided. In certain embodiments, a system includes an inertial measurement unit that provides inertial measurements of a vehicle. The system also includes an up-finding sensor that provides up-finding measurements based on when a portion of the vehicle is pointing up. Further, the system includes one or more processors that bound errors from the inertial measurements in a navigation solution during navigation of the vehicle using the up-finding measurements.

Abstract: A communications management system and an AoIP gateway server are disclosed. The AoIP gateway server is configured to send a first ACARS downlink message via an AoIP communication link. While the first ACARS downlink message is pending transmission, the communications management system is configured to send one or more ACARS downlink messages of a store and forward message type to the AoIP gateway server. The AoIP gateway server is configured to store each of the ACARS downlink messages while the first ACARS downlink message is pending transmission, and, for each store and forward message, send a pseudo-acknowledgment response back to the communications management system that indicates that the store and forward message was successfully transmitted to at least one ground system.

Abstract: Disclosed are methods, systems, and computer-readable medium for ground-based automated flight management of urban air mobility vehicles. For instance, the method may include: determining whether the ground control system is connected to an UAM vehicle; in response to determining the ground control system is connected to the UAM vehicle, exchanging data with UAM vehicle; automatically and remotely controlling the UAM vehicle using localized temporal data including the data; determining whether further control is necessary; and in response to determining further control is not necessary, releasing the UAM vehicle.

Abstract: A method includes receiving a first document, the first document including multiple sections, each of the multiple sections tagged with metadata indicating a relationship with a department of an organization; receiving a second document, the second document including multiple sections, each of the multiple sections tagged with metadata indicating a relationship with the department of the organization; comparing the sections of the first document tagged with metadata indicating the relationship of the first document with the department with the sections of the second document tagged with metadata indicating the relationship of the second document with the department to determine differences between the department-relevant sections of the first document and the department-relevant sections of the second document; and presenting the differences between the department-relevant sections to a user in a document difference viewer.

Abstract: An expansion sleeve apparatus comprising one or more layers configured from a material having a scalable volumetric porosity and enhanced noise reduction properties, wherein the expansion sleeve surrounds a flow control valve that is operable with a bidirectional flow of fluid through the flow control valve.

Abstract: A system for providing selective adhesion printed circuit board (PCB) production comprises a conveyor mechanism, a curing system, and a computer. The conveyor mechanism is configured to convey a series of selective adhesion blanks, wherein each selective adhesion blank is utilized to produce a PCB and includes a flexible film, a substrate, a conductive layer, and a curable adhesive. The conductive layer is formed from electrically conductive material and adhered to the substrate. The curable adhesive is positioned between the flexible film and the conductive layer and is configured to selectively bond with the conductive layer when the curable adhesive is cured. The curing system is configured to cure the curable adhesive. The computer includes a processing element configured or programmed to: receive a plurality of PCB designs, and direct the curing system to cure the curable adhesive of a plurality of selective adhesion blanks for each PCB design.

Abstract: Disclosed are methods, systems, and non-transitory computer-readable medium for managing energy use in a vehicle. For instance, the method may include receiving forecasted data from a first external source, receiving real-time data corresponding to at least one weather parameter at a first location at a first time, and continuously determining whether to perform an adjustment to a control parameter of the vehicle by using a machine learning model that is based on the forecasted data for the at least one weather parameter, the real-time data for the at least one weather parameter, a battery condition of the vehicle, and/or an estimated amount of energy consumed by traveling along a first navigation path.

Abstract: Systems and methods for a zero-code approach for model version upgrades are described herein. For example, a system includes memory. The system further includes a processor that receives source data from data sources; applies an ingestion process to the source data for storing storage data in a data storage repository; generates models from the storage data; applies an output process to generate output schemas based on the generated models; and applies the output schemas for providing data. Also, the source data and the models changes over time leading to different data type collections. Further, at least one of applying the ingestion and the output process includes performing a dynamic merge on the different data type collections to create a merged data type collection; acquiring a user-defined configuration for the merged data type collection; and generating an output schema to the merged data type collection based on the user-defined configuration.

Abstract: A photonics device comprises a waveguide platform including a substrate layer, a cladding layer over the substrate layer, and a waveguide layer embedded in the cladding layer. The waveguide layer includes a waveguide ring resonator, and a bus waveguide in optical communication with the waveguide ring resonator. The waveguide ring resonator is configured to generate a stimulated Brillouin scattering (SBS) beam when a pump laser beam is optically coupled into the waveguide ring resonator from the bus waveguide. The waveguide ring resonator has a radius and corresponding round-trip path length such that a free-spectral range (FSR) of the waveguide ring resonator is misaligned with respect to a SBS gain peak of the SBS beam, such that an SBS gain coefficient has a magnitude to produce a substantially reduced linewidth of the SBS beam.

Abstract: A gyroscope comprises a source emitting a broadband beam, and a first waveguide arrangement that splits the beam into CCW and CW beams. First and second phase modulators are coupled to the waveguide arrangement and provide phase modulations or frequency shifts to the CCW and CW beams. An optical resonator is in communication with the phase modulators such that the CCW and CW beams are optically coupled into the resonator. A second waveguide arrangement receives the CCW and CW beams transmitted from the resonator. First and second RIN detectors are coupled to the second waveguide arrangement and respectively receive the CCW and CW beams. A rate detector receives the CCW and CW beams. A rate calculation unit receives intensity noise signals from the RIN detectors, and rate and intensity noise signals from the rate detector. The rate calculation unit performs a RIN subtraction technique to reduce intensity noise limited ARW.

Abstract: An adjustable insulating device is provided. An example device includes a housing and an extendable member at least partially located within the housing. The extendable member moves between a retracted position and an extended position. The device further includes an adjustment mechanism operably coupled with the extendable member. The adjustment mechanism causes translation of the extendable member between the retracted position and the extended position. The adjustment mechanism includes a first roller rotationally engaged with the extendable member at a first position that houses a first motor, and a second roller rotationally engaged with the extendable member at a second position that houses a second motor. An output of the first motor and an output of the second motor are configured to cause translation of the extendable member between the retracted position and the extended position, via the first roller and the second roller.

Abstract: An example accelerometer includes a first excitation ring comprising a first material having a first coefficient of thermal expansion (CTE), a second excitation ring comprising the first material having the first CTE; and a proof mass assembly disposed between and in contact with the first excitation ring and the second excitation ring. The proof mass assembly comprises a second material having a second CTE, wherein a difference between the first CTE and the second CTE is equal to or less than 0.5 parts per million per degree Celsius (ppm/° C.).

Abstract: Systems and methods for oxide-based doping of an evaporable getter are described herein. In certain embodiments, a method includes mixing a first getter material with a second getter material to create a mixed getter material. The method also includes mixing an oxide dopant with the mixed getter material to create a doped getter material. Further, the method includes sealing the doped getter material within a device. Moreover, the method includes applying heat to the doped getter material to cause the doped getter material to emit a doped gas for deposition on internal surfaces of the device.

Abstract: A device and method for correcting emissions can include a first sensor that measures a sample of air not containing an exhaust gas, and a second sensor, wherein the exhaust gas enters a settling chamber and a relative humidity of the exhaust gas is measured by the second sensor. A microcomputer can calculate a mass of water vapor in the sample of air measured by the first sensor and in the exhaust gas measured by the second sensor and can determine a dilution factor of the measured exhaust gas. The dilution factor can be used for correcting emissions based on the measurements of the exhaust gas made by the first sensor and the second sensor. The first and second sensors can comprise one or more of, for example, a relative humidity sensor, a dew point sensor, a trace water vapor sensor and/or other types of sensors.