Abstract: Devices, methods, and systems for monitoring a self-testing fire sensing device are described herein. One device includes a memory, and a processor configured to execute instructions stored in the memory to receive, from a self-testing fire sensing device, measurements of outputs of light-emitting diodes (LEDs) of the self-testing fire sensing device during operation of the self-testing fire sensing device, determine when a deviation in the measured outputs of the LEDs of the self-testing fire sensing device meets or exceeds a threshold deviation amount, determine an action to take on the self-testing fire sensing device upon determining the deviation in in the measured outputs of the LEDs meets or exceeds the threshold deviation amount, and send a notification of the determined action to take on the self-testing fire sensing device to an additional computing device.

Abstract: Systems and methods are provided for displaying roll rate on a vertical take-off and landing (VTOL) aircraft display. Aircraft roll data is received from at least one geospatial sensor of the VTOL aircraft. A roll rate scale associated with a desirable roll rate range of the VTOL aircraft is generated. An aircraft roll rate of the VTOL aircraft is determined based on the aircraft roll data. The VTOL aircraft display, including a graphical representation of the roll rate scale and the aircraft roll rate with respect to the roll rate scale, is generated for display on the display device.

Abstract: Lower noise and complexity techniques are disclosed for compensating for time varying phase changes in fiber optics in a resonant fiber optic gyroscope (RFOG). Orthogonal components derived from an electrical beat note signal and a difference between clockwise and counterclockwise resonant frequencies of an optical resonator coil of the RFOG are determined. The orthogonal products are converted to a phase which is differentiated with respect to time to obtain a beat note correction signal.

Abstract: Non-flammable refrigerants with low GWP and secondary refrigerant systems including such refrigerants are provided. The refrigeration system may contain a high temperature refrigerant circuit with a first refrigerant and a low temperature refrigerant circuit with a second refrigerant, wherein the second refrigerant comprises a blend of R1234ze(Z), R1234ze(E), R1336mzz(E) and optionally R227ea, or a blend of R1234ze(Z) R1234ze(E) R1224yd(Z), and optionally R(227ea). The refrigerant fluids may have one of the following characteristics: (i) a global warming potential (GWP) of less than 150; (ii) an evaporator glide of less than 5.5° C.; (iii) non-flammability according to ASHRAE Standard 34; and/or (iv) a boiling point of less than 6° C.

Abstract: An electric motor system, which may be included in an aircraft, includes a multi-phase motor, a multi-phase inverter circuit, and a plurality of motor brake switches. The multi-phase inverter circuit is coupled to each phase of the multi-phase stator and is adapted to be coupled to a high-side voltage node and a circuit common node. Each motor brake switch is associated with, and is connected in series between, the circuit common node and a different one of the phases. Each motor brake switch is configured to be in an open state when energized and in a closed state when deenergized. When the motor brake switches are in the open state, the motor brake switches do not connect the associated phases to the circuit common node, and when the motor brake switches are in the closed state, the motor brake switches connect the associated phases to the circuit common node.

Abstract: A method and system for generating a taxi assist path for an aircraft at an airport has been developed. First, a network of taxiways/runways for the airport is retrieved and used to generate multiple taxi assist paths for the aircraft from the present location of the aircraft to the destination of the aircraft. An optimum taxi assist path is selected for the aircraft from the multiple taxi assist paths. A mapping diagram of painted taxiway guidance lines for the airport is retrieved. The optimum taxi assist path is then modified to match corresponding painted taxiway guidance lines and displayed on an aircraft display device.

Abstract: Method of forming extruded thermoplastic foam comprising extruding a foamable composition comprising thermoplastic polymer and blowing agent, wherein said thermoplastic polymer consists essentially of ethylene furanoate moieties and optionally ethylene terephthalate moieties and wherein said extruding step comprises forcing said foamable composition from a relatively high pressure region through a die to a relatively low pressure region.

Abstract: An electronic assembly comprises a printed circuit board including a plurality of stacked layers, wherein the stacked layers comprise a plurality of conductive layers, a plurality of dielectric layers respectively interposed between the conductive layers, and one or more phase change material layers interposed between at least one pair of the dielectric layers or at least one pair of the conductive layers. During a phase change, the one or more phase change material layers are configured to absorb thermal energy at a phase transition temperature to provide enhanced cooling of the printed circuit board. In some embodiments, the printed circuit board can be a metal core printed circuit board.

Abstract: A method for monitoring a security system includes receiving a plurality of events produced by one or more of a plurality of components of the security system. A corresponding event type is identified for each of the plurality of received events from a plurality of event types. A spatial representation of at least part of the facility is displayed on a display of a user interface. For each of at least some of the plurality of received events, a predefined event icon that corresponds to the event type of the event is displayed on the spatial representation of at least part of the facility, at a location that corresponds to the location of the facility that the component that produced the event is located, and at a time that corresponds to the time that the event was produced by the corresponding component.

Abstract: A bleed system including control circuitry and a variable jet pump. The control circuitry is configured to receive a signal indicative of a fluid parameter in the bleed system and cause the jet pump to alter a mixing ratio of a higher pressure gas and a lower pressure gas based on the signal. The jet pump is configured to combine the lower pressure gas and the higher pressure gas in the mixing ratio to generate a mixed gas. The jet pump is configured to supply the mixed gas to one or more gas loads in the bleed system. In examples, the control circuitry is configured to establish a system setpoint for the fluid parameter based on an operating status of the one or more gas loads.

Abstract: Embodiments of the disclosure are directed to a shock initiation system for initiating shock in a shock tube for demolition. In some embodiments, the shock initiation system comprises a reusable discharge unit and a replaceable shock initiation platform. The reusable discharge unit may comprise a power source, a timer, a switch, and user inputs and may function to store a time, countdown the timer, and generate and transmit an electrical energy to the replaceable shock initiation platform. The shock initiation platform may receive the electrical energy from the discharge unit overpowering a resistor disposed on the shock initiation platform. The resistor may then detonate providing an initiation shock to a proximally disposed shock tube, thereby initiating shock in the shock tube.

Abstract: Various embodiments are directed to safety device connector apparatuses for use with a wearable safety harness. A safety device connector apparatus may comprise a base portion operable to attach to a strap of the wearable safety harness, the base portion comprising a base attachment pin fixedly secured thereto; a connector element configured to be detachably coupled to the base portion via a connector element detachable base interface comprising a connector interface opening and configured to engage the base attachment pin, wherein engaging the base attachment pin comprises receiving the base attachment pin within the connector interface opening; wherein the connector interface opening comprises an angled notch configuration configured to facilitate a movement of the base attachment pin relative to the connector interface opening; and wherein the connector element is configured to detach from the base portion based at least in part on a load force acting on the connector element.

Abstract: A vertical door latch assembly includes a bolt that has a catch portion located adjacent a distal end of the bolt. A latch has a retention feature for engaging the catch portion of the bolt. An electro-mechanical locking assembly secures the latch between a locking position preventing movement of the bolt and a non-locking position allowing movement of the bolt. A controller is in electrical communication with the electro-mechanical locking assembly and is configured to direct the electro-mechanical locking assembly between the locking position and the non-locking position.

Abstract: Vehicle systems and methods are provided for decoupling user input devices and software applications using contextual information. One method involves a user input management service receiving an input context message from an interactive application identifying an anticipated data type to be received by the interactive application, maintaining an association between the anticipated data type and the interactive application, identifying an input data type associated with a received user input, and when the input data type matches the anticipated data type, broadcasting, by the user input management service, a message including an indication of the input data type and an input value of the received user input for the input data type to the interactive application, wherein the interactive application responds to the input value for the input data type.

Abstract: An aircraft flap malfunction detection and landing assist system and method includes supplying flap status data, from a flap status data source, that indicates at least aircraft flap configuration and operability, supplying aircraft state data, from an aircraft state data source, that indicates at least aircraft weight, aircraft speed, and aircraft position, supplying weather data, from a weather data source, that indicates current weather at a landing runway, processing, in a processing system the flap status data to determine if at least one flap is inoperable and, upon determining that the at least one flap is inoperable, processing the flap status data, the aircraft state data, and the weather data to selectively generate, and command a display device to render, at least one of forward slip landing parameters or side slip landing parameters.

Abstract: An immersive scene monitoring system presents a monitoring interface providing a virtual reality (VR)/augmented reality (AR) view of a scene associated with production operation(s) for a (e.g., pharmaceutical) product. The VR/AR view of the scene may be displayed with interactable graphical elements representing input fields corresponding to attributes of quality management events to be generated. The system generates the quality management events based on input (e.g., voice, gesture) received via the monitoring interface. The VR and/or AR view of the scene may be displayed with indicators of detected anomalies, and the input fields and/or corresponding attributes may be automatically populated by the system based on recognized objects and/or anomalies depicted in captured image data of the VR/AR view of the scene. The system can be configured for different scenes pertaining to different production operations and/or different products via a configuration interface.

Abstract: A method and system for airline operation center (AOC) data communications are disclosed. The method comprises providing a computing device for use onboard an aircraft, with the computing device hosting at least one application configured to interact with at least one avionics processing unit onboard the aircraft. The method further comprises automatically retrieving, by the at least one application, AOC information for storage and processing on the computing device, and transmitting by the at least one application, the AOC information from the computing device to the at least one avionics processing unit. The AOC information is used by the at least one avionics processing unit to execute an AOC application hosted by the at least one avionics processing unit.

Abstract: Various examples of the present disclosure provide aircraft engine sensing apparatuses and methods of manufacturing aircraft engine sensing apparatuses. For example, an example aircraft engine sensing apparatus includes an aircraft engine sensor, a plurality of connection wires, and at least one ceramic insulator. In some examples, the aircraft engine sensor is positioned within an aircraft engine. In some examples, the plurality of connection wires connect the aircraft engine sensor to a sensor connector. In some examples, the plurality of connection wires are positioned within a wire protection housing. In some examples, the at least one ceramic insulator is positioned within the wire protection housing and defines a plurality of insulator openings. In some examples, each of the plurality of connection wires passes through one of the plurality of insulator openings.