Abstract: A continuous filament additive manufacturing machine for building a part by laying down a continuous mono-filament or composite filament material layer by layer on a tool or substrate. The machine includes a system, such as a robot, operable to move in three degrees of freedom, and a placement module coupled to the system and being configured to deposit the continuous filament material. The placement module includes a guide for guiding the material to the part and an ultrasonic compaction device for compacting the material as it is being deposited from the placement module. The compaction device includes an ultrasonic horn having at least one guide hole through which the material passes before it is laid down and compacted. The ultrasonic horn is ultrasonically vibrated to melt or flow the material and cause the material to fuse and be compacted to the tool or substrate.

Abstract: A containerized cross-domain solution (CDS) is disclosed herein. In some examples, a first network interface container can be executed on a server to run a first network interface application to receive a data packet that includes data generated by a first process executing at a first security domain. A filter container can be executed on the server to run a data filter to evaluate a data content of the data to determine whether the data content violates a set of data rules. A second network interface container can be executed on the server to run a second network interface application. The data packet can be provided to the second network interface application in response to determining that the data content does not violates the set of data rules. The second network interface application can provide the data packet to a second security domain for a second process executing therein.

Abstract: A Josephson junction (JJ) device is disclosed that includes a first superconductor structure having a bottom superconductor arm portion and a second superconductor structure having a top superconductor arm portion disposed substantially orthogonal to the bottom superconductor arm portion and overlapping the bottom superconductor arm portion in a JJ operation region. The JJ device further includes a dielectric material layer acting as a tunnel barrier disposed between the bottom superconductor arm portion and the top superconductor arm portion in the JJ operation region to form an operating JJ.

Abstract: A continuous filament additive manufacturing machine for building a part by laying down a continuous mono-filament or composite filament material layer by layer on a tool or substrate. The machine includes a system operable to move in at least three degrees of freedom, and a placement module coupled to the system and being configured to deposit the continuous filament material. The placement module includes a guide for guiding the material to the part and an ultrasonic compaction device for compacting the material as it is being deposited from the placement module. The compaction device includes an ultrasonic driver, an attachment member and a plurality of ultrasonic horns independently coupled to the attachment member and being movable independent of each other. The plurality of ultrasonic horns are ultrasonically vibrated to melt or flow the material and cause the material to fuse and be compacted to the tool or substrate.

Abstract: A core support system includes a support structure. The support structure includes a frame and a support member having a saturatable engagement layer disposed over the frame. A method of machining a core material incudes applying a fluid to an engagement layer of a support structure and saturating the engagement layer with the fluid, disposing a core material on the engagement layer, causing the fluid to freeze to secure to the core material to the support structure, machining the core material, melting the frozen fluid to release the core material from the support structure, and removing the core material from the engagement layer.

Abstract: Embodiments include engagement management systems and methods for managing engagement with aerial threats. Such systems include radar modules and detect aerial threats within a threat range of a base location. The systems also track intercept vehicles and control flight paths and detonation capabilities of the intercept vehicles. The systems are capable of communication between multiple engagement management systems and coordinated control of multiple intercept vehicles.

Abstract: A superconductor junction includes a normal metal layer having a first side and a second side, an insulating layer overlying the second side of the normal metal layer, and a first superconductor layer formed of a first superconductor material that overlies a side of the insulating layer opposite the side that overlies the normal metal layer. The superconductor junction further includes a second superconductor layer formed of a second superconductor material with a first side overlying a side of the first superconductor material opposite the side that overlies the insulating layer. The second superconductor material has a higher diffusion coefficient than the first superconductor material and/or the second superconductor material has a lower recombination coefficient than the first superconductor metal layer. A normal metal layer quasiparticle trap is coupled to a second side of the second superconductor layer.

Abstract: One example includes a power supply system. The system includes a voltage-limit power regulator to generate an output voltage and an instantaneous overvoltage sensor configured to detect an overvoltage condition associated with the output voltage. The system further includes an overvoltage latch-off timer system configured to initiate a latch-off timer in response to detecting the overvoltage condition. The latch-off timer can be uninterrupted by an amplitude of the output voltage. The overvoltage latch-off timer system can further be configured to detect a persistent overvoltage fault in response to detecting the overvoltage condition after expiration of the latch-off timer. The overvoltage latch-off timer system can be configured to generate a fault signal to disable the voltage-limit power regulator in response to detecting the persistent overvoltage fault.

Abstract: Pulse-generator-based reciprocal quantum logic (RQL) bias-level sensors are fabricated on an RQL integrated circuit (IC) to sample AC or DC bias values provided to operational RQL circuitry on the RQL IC. The bias-level sensors include pulse generators having strengthened or weakened bias taps (transformer couplings to RQL AC clock resonators or DC bias lines) as compared to bias taps of Josephson transmission lines in the operational RQL circuitry, or Josephson junctions (JJs) with larger or smaller critical currents as compared to JJs in the operational RQL circuitry. Pulse generators with weakened bias taps or larger JJs can have lower limits of their operational ranges placed near an optimal bias point at the centroid of the operating region of the operational RQL circuitry. The bias-level sensors can be staged by relative strength to indicate whether a provided bias value is an improvement when varied over a range.

Abstract: Fuel used as a coolant in an aircraft can be thermally conditioned for active thermal management of the airframe and engine. The fuel can be thermally conditioned using the residual cooling capacity of a power and thermal module (PTM), providing flexibility of thermal system design, or via a compact engine-mounted turbo cooler, to maximize system efficiency. The fuel can be stored in a thermal reserve tank to provide a missionized heat sink capable serviceable for periodic high heat flux equipment. The cooling and provision of cooled fuel to aircraft components can be intelligently controlled to provide efficient cooling and effectively unlimited ground hold times.

Abstract: A map control module receives a stream of map data characterizing a geographic region proximal to a vehicle and outputs a moving map, and the moving map is divisible into a matrix of cells. A map item control receives a stream of point of interest (POI) data characterizing a plurality of POIs within the boundary and categorizes each of the plurality of POIs to define a set of categories. The map item control determines a display location of a map item within the matrix of cells for each of the plurality of POIs and determines an importance for each POI within a same category. The map item control forms a set of clusters of map items. Each map item in a given cluster of map items has a same cell and a same category. The map item control selects a top-item for each cluster of map items.

Abstract: One example includes a superconducting circuit. The circuit superconducting circuitry fabricated on a first surface of a circuit layer. The circuit layer includes a dielectric material. The circuit also includes a metal layer formed on a second surface of the circuit layer opposite the first surface and a through-substrate via (TSV) conductively coupled to the metal layer and extending through the circuit layer to the first surface. The circuit further includes a flux gasket conductively coupled to and extending from the TSV on the first surface proximal to the superconducting circuitry. The flux gasket can be configured to divert magnetic fields away from the superconducting circuitry.

Abstract: A system and method for fabricating an optical element. The method includes welding an array of fibers to the optical element, measuring an angle error and a position error of each fiber, calculating a correction for each fiber for the angle error and the position error and correcting the angle and position of each fiber using the calculated corrections.

Abstract: A capacitive discharge unit (CDU) for detonating an explosive in response to a control signal comprises a set of CDU components, including an exploding foil initiator (EFI), a trigger circuit, a firing capacitor, and an insulated-gate bipolar transistor (IGBT) firing switch. In various embodiments the components are arranged on a board for mechanically and electrically supporting the components in an ordered arrangement along a CDU axis where the CDU having an axial length defined by the ordered arrangement of two or more of the EFI, the firing capacitor, and the IBGT firing switch, wherein the trigger circuit is offset from the CDU axis such that the trigger circuit does not contribute to the axial length.

Abstract: One example includes a navigation system. The navigation system includes an inertial navigation system (INS) that is configured to provide a coordinate frame corresponding to an inertial reference of the INS relative to a geodetic coordinate system. The coordinate frame includes a reference axis that defines a reference orientation of the INS. The system also includes an optical tracking device configured to obtain a reference image to determine an orientation of a boresight axis of the optical tracking device. The system further includes an alignment controller configured to compare the reference axis based on the coordinate frame and the boresight axis based on the reference image to determine an angular misalignment between the reference axis and the boresight axis, and to adjust the reference orientation to align the reference axis to the boresight axis based on the determined angular misalignment.

Abstract: A precursor formulation of a liner comprising a polymer and at least two curatives is disclosed. One of the at least two curatives comprises a curative formulated to preferentially react with the polymer and the other of the at least two curatives comprises a blocked curative formulated to be substantially unreactive with the polymer. A method of lining a rocket motor is also disclosed, as is a rocket motor including the liner.

Abstract: A phased-array antenna system includes: an array of discrete antenna modules disposed conformally with an exterior surface of a platform; a digital distribution system comprising a digital communications medium to convey digital signals to and/or from respective input/output ports of the antenna modules; and a controller system to supply and/or receive the digital signals to/from the antenna modules via the digital distribution system. The controller system controls relative phases of the digital signals to enable the antenna elements to form a directive antenna beam pattern. Each antenna module includes: an antenna element to emit and/or absorb RF signals; an input/output port to send and/or receive digital signals; an electronics unit including an A/D and/or D/A converter to provide an interface between the antenna element and the input/output port; and a housing in which the antenna element and electronics unit are packaged.

Abstract: A composition comprising boron, potassium ferricyanide, and at least one of an oxidizer, a nitramine, a binder, and an additive. Also disclosed are additional compositions, countermeasure devices including the composition, and a method of using the countermeasure device.

Abstract: A tool for forming a composite structure may include two or more segments formed from a polymer material. The tool may further include a crush insert disposed between the two or more segments. The tool may also include a support shaft coupled between the two or more segments. A method of forming a mandrel may include forming segments of the mandrel through an additive manufacturing process. The method may further include assembling the segments relative to one another. The method may also include positioning a crush insert between each of the segments. A method of fabricating a composite structure is also disclosed.

Abstract: Systems and methods for machine-learning-based aircraft icing prediction use supervised and unsupervised learning to process real-time environmental data, such as onboard measurements of outside air temperature and dew point, to predict a risk of icing and determine whether to issue an icing risk alert to an onboard crewmember or a remote operator, and/or to recommend an icing avoidance maneuver. The systems and methods can use reinforcement learning to generate a confidence metric in the predicted risk of icing, to determine a time or distance to predicting icing, and/or to not issue an alert or recommend a maneuver in consideration of historical data in a “library of learning” and/or other flight data such as airspeed, altitude, time of year, and weather conditions. The predictive systems and methods are low-cost and low-power, do not require onboard weather radar, and can be effective for use in smaller aircraft that are completely icing-intolerant.