Abstract: A turbine engine including a fan section, a compressor section, a combustion section, a turbine section, and an airfoil assembly. The airfoil assembly comprising a spar, a trunnion and a stress relief. The trunnion having an upper edge with an open top, and a socket extending from the open top. The spar extending through the open top and into the socket. A junction being formed between the spar and a portion of the upper edge defining the open top.

Abstract: Systems and methods of the various embodiments may provide metal electrodes for electrochemical cells. In various embodiments, the electrodes may comprise iron. Various methods may enable achieving high surface area with low cost for production of metal electrodes, such as iron electrodes.

Abstract: Described herein are methods and systems for generating and applying vehicle maintenance models to vehicle telematics data. A vehicle telematics analytics (VTA) computing device is configured to receive vehicle telematics data associated with operation of a subject vehicle, and apply the received vehicle telematics data to a vehicle maintenance model to determine whether the operation of the subject vehicle is better or worse than standard operation of like vehicles. The VTA computing device may adjust a maintenance cost and/or determine if a user of the vehicle is eligible for a reward based upon this determination. The VTA computing device is configured to transmit an itemized report to the user including the adjusted maintenance cost and/or the reward as well as one or more other vehicle costs.

Abstract: A turbine engine having a disk and a composite airfoil assembly. The disk having a slot. The composite airfoil assembly having an airfoil portion, a dovetail portion, and a roll snubber. The dovetail portion having a radially inner surface. The roll snubber being provided on the radially inner surface. The radially inner surface spaced from the slot to define a gap therebetween.

Abstract: The present disclosure provides techniques and apparatus for capturing an image of a person's retina fundus, identifying the person, accessing various electronic records (including health records) or accounts or devices associated with the person, determining the person's predisposition to certain diseases, and/or diagnosing health issues of the person. Some embodiments provide imaging apparatus having one or more imaging devices for capturing one or more images of a person's eye(s). Imaging apparatus described herein may include electronics for analyzing and/or exchanging captured image and/or health data with other devices. In accordance with various embodiments, imaging apparatus described herein may be alternatively or additionally configured for biometric identification and/or health status determination techniques, as described herein.

Abstract: A turbine engine with an engine core defining an engine centerline and comprising a rotor assembly and a stator assembly. The turbine engine including a primary stage of airfoils circumferentially arranged about the engine centerline and defining at least a portion of the rotor assembly. A subsidiary stage of airfoils located upstream of the primary stage of airfoils and circumferentially arranged about the engine centerline.

Abstract: A piezoelectric micromachined ultrasonic transducer (“PMUT”) sensor has a membrane that includes an active region that actively transmits and receives ultrasonic acoustic signals and an inactive region that contributes to the PMUT modeshape but does not actively transmit and receive ultrasonic acoustic signals. A plurality of vent holes are distributed throughout the membrane such as in the inactive region. The number and size of the vent holes are selected to provide a necessary dissipation of pressure bursts or transients while maintaining a transmission efficiency.

Abstract: A piezoelectric micromachined ultrasonic transducer (“PMUT”) sensor has a target residual stress at one or more layers of the PMUT and also has patterning where some of the layers of the PMUT are removed. The residual stress and the patterning result in a static deflection of the PMUT. The application of the residual stress and the patterning define a vibration modeshape with desired acoustic characteristics such as improved signal-to-noise ratio (“SNR”).

Abstract: A method includes transmitting a first wireless communication from a user device via an authorized first cellular network. The first wireless communication includes a current geographic location of the user device. The user device maintains a forbidden list identifying unauthorized cellular networks. Based on determining that the user device is approaching a geofence between a first network coverage area of the first cellular network and a second network coverage area of a second cellular network that is identified on the forbidden list, the method includes removing the second cellular network from the forbidden list. With the second cellular network removed from the forbidden list and based on the user device entering the second network coverage area, the method includes transmitting a second wireless communication from the user device via the second cellular network that includes an updated geographic location of the user device.

Abstract: A piezoelectric micromachined ultrasound transducer (PMUT) sensor is implemented with a microelectromechanical sensor (MEMS) die including a membrane of the PMUT sensor that transmits and receives acoustic signals. A back volume within the MEMS sensor package has an acoustic resonance mode that is within an operating frequency range of the MEMS sensor. The MEMS die is located within the MEMS sensor package such that an acoustic pressure that is applied to the membrane is balanced over the membrane, such that the back volume acoustic resonance mode is decoupled from the membrane operating mode.

Abstract: The invention provides methods for the preparation of particles including one or more agents, e.g., therapeutic or diagnostic agents. The particles can be formed by creating droplets of a first liquid, e.g., including an agent, and removing the first liquid, e.g., through its dispersal in a second liquid and/or evaporation, to solidify the droplets. Advantageously, the process of forming the particles does not significantly alter the structure or activity of the agents and may enhance the stability of the agents. For example, the particles may be stored for long periods of time without significant loss of activity, and in some embodiments, without the need for refrigeration. These particles may be used to generate stabilized pharmaceutical compositions for storage or other logistical purposes, pharmaceutical suspensions, pharmaceutical powder formulations (e.g., inhalable powders, injectable powders), creams or other topical pastes, nutraceuticals, or cosmetics.

Abstract: Systems, apparatuses, and methods for achieving higher cache hit rates for machine learning models are disclosed. When a processor executes a given layer of a machine learning model, the processor generates and stores activation data in a cache subsystem a forward or reverse manner. Typically, the entirety of the activation data does not fit in the cache subsystem. The processor records the order in which activation data is generated for the given layer. Next, when the processor initiates execution of a subsequent layer of the machine learning model, the processor processes the previous layer's activation data in a reverse order from how the activation data was generated. In this way, the processor alternates how the layers of the machine learning model process data by either starting from the front end or starting from the back end of the array.

Abstract: A bladeless fan including a housing, an impeller within the housing, a motor within the housing for rotatably driving the impeller, an outlet device having an at least partially circular outlet, and a diffuser configured to receive air from the impeller and direct the air into the outlet device, the diffuser at least partially changing a direction of the air being directed into the outlet device.

Abstract: The present disclosure relates to methods and intermediates useful for preparing a compound of formula I: or a co-crystal, solvate, salt or combination thereof.

Abstract: An actuator is introduced that utilizes the forces that result from placing a current carrying coil in a magnetic field to rotate a connected object about at least one axis. In some embodiments, the introduced coil actuator includes a coil of conductor coupled to an arm or other type of structural element that extends radially from an axis of rotation. The introduced coil actuator can be utilized to provide motion control in a variety of different applications such as gimbal mechanisms. In some embodiments, the introduced coil actuator can be implemented in a gimbal mechanism for adjusting an orientation of a device such as a camera relative to a connected platform such as the body of an aerial vehicle.

Abstract: The present disclosure relates to systems and methods of automatically distributing powertrain demand between tandem drive axles in a tandem drive axle system for balanced tire wear between the tandem drive axles. Examples described herein analyze input signals collected from various vehicle sensors about operating conditions of the front and back tandem drive axles, and automatically bias a distribution of torque demand between the front and back tandem drive axles to correct for asymmetric wear based on known normal wear of the tires under like operating conditions.

Abstract: A reader comprising: a panel; two antennae each associated with a respective race to transmit and/or receive information to/from an electronic animal tag in that respective race; and an electromagnetic shield to impede an antenna from transmitting and/or receiving information to/from an electronic animal tag not located in the respective race of that antenna; a system for reading electronic animal tags comprising: a plurality of readers each located at or near a wall of a respective plurality of races, wherein each reader is at least partially shielded by an electromagnetic shield; each reader being longitudinally offset with respect to at least one other reader in the plurality of readers; and methods of constructing and using a reader.

Abstract: The invention provides a compound of formula (1). or tautomer or a solvate or a pharmaceutically acceptable salt thereof, wherein the various substituents are as defined in the claims. Also provided are pharmaceutical compositions containing the compounds of formula (I), processes for making the compounds and the medical uses of the compounds.

Abstract: Systems and methods of the various embodiments may provide metal electrodes for electrochemical cells. In various embodiments, the electrodes may comprise iron. Various methods may enable achieving high surface area with low cost for production of metal electrodes, such as iron electrodes.

Abstract: In accordance with an embodiment, a system includes: a primary device configured to be connected to at least one secondary device via serial bus having a data wire and a clock wire. The primary device is configured to: provide a clock signal on the clock wire; and transmit a frame comprising control bits on the serial bus, wherein a number of control bits transmitted on the serial bus at at least one location of the frame indicates a format of the frame.