Abstract: A wellbore downhole tool, comprising: a nozzle assembly, the nozzle assembly includes a nozzle including: a cylindrically-shaped tube with a substantially uniform outer diameter across substantially an entire height of the nozzle, at least one retaining body opening located in an outer wall of the nozzle; a holding body including: a conduit, the conduit sized to fit the nozzle there-through, an alignment opening extending from an outer surface of the holding body to the conduit; and a retaining body sized to fit within the alignment opening of the holding body and to contact the retaining body opening of the nozzle when the nozzle is inserted in the conduit such that the cylindrically-shaped tube of the nozzle cannot rotate or move further in or out of the conduit. A method of assembling the wellbore downhole tool is also described.

Abstract: Embodiments include an audio system comprising a speaker array comprising a plurality of drivers arranged in a first planar configuration; a microphone array comprising a plurality of transducers arranged in a second planar configuration; and a beamformer communicatively coupled to the speaker array and the microphone array, the beamformer configured to: generate an individual speaker output signal for each of the drivers in the speaker array based on one or more input audio signals received from an audio source, and generate a microphone output signal for the microphone array based on one or more microphone signals captured by one or more of the transducers. Embodiments also include a method performed by one or more processors coupled to a microphone array having a plurality of transducers and a speaker array having a plurality of drivers.

Abstract: Point-of-sale (POS) e-commerce transaction verification via a mobile device such as a smart phone, smart watch, tablet, PC, appliance or personal assistant rather than numeric keypad on POS device. Near field communication (NFC), quick response (QR) code, push notification and executable application embodiments disclosed.

Abstract: An apparatus comprises a switch, a current monitor, and a controller. During operation, the switch controls an amount of current through the load. The current monitor samples a magnitude of the current through the load, a magnitude of which varies over time during a time duration. Based on integrating the sample magnitudes of the current through the load over the time duration, the current monitor produces a current sense value. The current sense value is representative of an amount of current through the load. The controller controls an operational state of the switch based upon a comparison of the current sense value with respect to an over-current threshold value. For example, in response to detecting a condition in which the current sense value is greater than the overcurrent threshold value, the controller turns OFF (deactivates) the switch, reducing or eliminating delivery of current through the load.

Abstract: A wellbore downhole tool, comprising: a nozzle assembly, the nozzle assembly includes a nozzle including: a cylindrically-shaped tube with a substantially uniform outer diameter across substantially an entire height of the nozzle, at least one retaining body opening located in an outer wall of the nozzle; a holding body including: a conduit, the conduit sized to fit the nozzle there-through, an alignment opening extending from an outer surface of the holding body to the conduit; and a retaining body sized to fit within the alignment opening of the holding body and to contact the retaining body opening of the nozzle when the nozzle is inserted in the conduit such that the cylindrically-shaped tube of the nozzle cannot rotate or move further in or out of the conduit. A method of assembling the wellbore downhole tool is also described.

Abstract: Systems and methods for detecting and monitoring human breathing, respiration, and heart rate using statistics about the wireless channel between two or more connected devices. A user is monitored for identifying patterns in the user's behavior that may allow the system to alert a caregiver to deviations in the user behavior that may be indicative of a potential issue, such as depression. A presence may further detected in a sensing area through the detection of spectral components in the breathing frequency range of comprises user includes transforming phase difference between spatial streams and amplitude of the samples representing frequency response of the channel for any frequency value into frequency domain to perform frequency analysis. Statistical analysis may be performed on the frequency space provided by the transformation. Micro motions may also be detected by detecting presence in a sensing area through the detection of spectral components in the micro motion frequency range.

Abstract: A steerable speaker array is provided, comprising a plurality of drivers arranged in a concentric, nested configuration formed by arranging the drivers in a plurality of concentric groups and placing the groups at different radial distances from a central point of the configuration. Each group is formed by a subset of the plurality of drivers being positioned at predetermined intervals from each other along a perimeter of the group. Also, the concentric groups are harmonically nested and rotationally offset from each other. An audio system is also provided comprising at least one steerable speaker array and a beamforming system configured to receive one or more input audio signals from an audio source, generate a separate audio output signal for each driver of the speaker array based on at least one of the input signals, and provide the audio output signals to the corresponding drivers to produce a beamformed audio output.

Abstract: A system for location detection is provided that includes a device that is disposed within a detection environment and is adapted to communicate over a radio frequency communication link. The device may be a wireless access point disposed within the environment, including a wireless transceiver in communication with the device over a radio frequency communication link using a plurality of channels, and recording a channel state information data set for the radio frequency communication link. The wireless access point Wi-Fi signal is used to detect motion within the detection environment. The system further integrates with 5G networks to allow motion and location tracking outside of the detection environment and range of the Wi-Fi motion detection system by using the 5G CSI data on a mobile station, such as a mobile device.

Abstract: Point-of-sale (POS) e-commerce transaction verification via a mobile device such as a smart phone, smart watch, tablet, PC, appliance or personal assistant rather than numeric keypad on POS device. Near field communication (NFC), quick response (QR) code, push notification and executable application embodiments disclosed.

Abstract: A clutch cover for a friction clutch and a friction clutch, where the clutch cover forms a ring wall and the ring wall forms a plurality of circumferentially spaced radially extending plates having each a radially outer end. The ring wall also form two or more concentric annular stiffening bands extending at a radial distance from one another and including an innermost annular stiffening band. The ring wall also forms an outermost annular stiffening band, wherein the annular stiffening bands connect the radial plates to each other and having each a radial thickness that is smaller than the radial distance therebetween measured in intermediate regions of the ring wall between respectively two successive radial plates. A plurality of circumferentially spaced drive members of the friction clutch protrude axially from or can be screw connected to said radially outer ends of the radial plates.

Abstract: The present disclosure provides collagen bioink compositions and chemically uncrosslinked and crosslinked collagen structures including collagen microparticles and scaffolds. Also provided are methods of their fabrication and use. Applications for using these collagen structures include treatments of damaged tissue, particularly those caused by osteoarthritis.

Abstract: A wireless audio system configured to perform an acoustic ranging operation is disclosed. The audio system comprises an audio transmitter, and audio receiver, and is configured to determine a distance between the audio transmitter and the audio receiver.

Abstract: The present disclosure describes a treatment composition comprising a nanoparticle composition comprising nanoparticles functionalized with surface amine groups and a crosslinking composition comprising genipin. The disclosure also describes a kit comprising the treatment composition, and instructions for using the kit to crosslink the nanoparticles to a tissue graft. The treatment composition and kit can be used to crosslink nanoparticles to a tissue graft, and the resulting tissue graft can be used to replace defective tissue in a subject in need thereof.

Abstract: An illustrative control system for a precision agricultural implement includes a controller having a convolutional neural network, an imaging device, a plurality of sensors, and a plurality of actuators in communication with the controller, the controller configured for detecting and tracking objects of interest in a commodity field, such a commodity plants, and the plurality of actuators including a plurality of agricultural tool actuators the controller operates based on the detection and tracking of object of interest in the commodity field.

Abstract: A method of utilizing Wi-Fi based passive motion detection to deliver targeted advertising through a smart TV is provided. The system uses an agent in connection with the wireless access point that the Smart TV uses to access the internet to make motion determinations. The CSI data of the access point is analyzed to identify if a user is present, if the user is stationary, the previous location of the user, and the activity the user is currently engaged in. An advertisement may be selected based on a last visited location and activity. Such advertisements may further be delivered to more engaged viewers when the advertiser pays a higher rate.

Abstract: A tape for collecting tissue samples in a manner compatible with imaging in a transmission electron microscopy (TEM) system, includes a tape substrate having two side walls forming a trough. The trough is defined by a bottom surface of the tape substrate and internal surfaces of the side walls, with an open side therebetween. A support film is attached to a top surface of the tape substrate, and a plurality of apertures is spaced at predetermined locations along the length of the tape substrate, each aperture being covered by the support film. The tape includes a stacked configuration in which the tape substrate is wound in layers, the bottom surfaces of the side walls in one layer being in contact with the support film in an immediately adjacent layer. The apertures in the second layer are aligned within the trough of the first layer, between the side walls.

Abstract: Embodiments include assay devices within a single use, disposable cassette for biochemical assays with at least one fluid well and at least one capillary valve. The capillary valve in combination with motion of porous sheets within the assay leads to addition of liquid reagents at different times to the assay although a user adds the liquid reagents to the cassette simultaneously.

Abstract: Embodiments include a microphone assembly comprising an array microphone and a housing configured to support the array microphone and sized and shaped to be mountable in a drop ceiling in place of at least one of a plurality of ceiling tiles included in the drop ceiling. A front face of the housing includes a sound-permeable screen having a size and shape that is substantially similar to the at least one of the plurality of ceiling tiles. Embodiments also include an array microphone system comprising a plurality of microphones arranged, on a substrate, in a number of concentric, nested rings of varying sizes around a central point of the substrate. Each ring comprises a subset of the plurality of microphones positioned at predetermined intervals along a circumference of the ring.

Abstract: Embodiments allow for an auto-mixer to gate microphones on and off based on speech detection, without losing or discarding the speech received during the speech recognition period. An example method includes receiving and storing an input audio signal. The method also includes determining, based on a first segment of the input audio signal, that the input audio signal comprises speech, and determining a delay between the input audio signal and a corresponding output audio signal provided to a speaker. The method also includes reducing the delay, wherein reducing the delay comprises removing one or more segments of the stored input audio signal to create a time-compressed audio signal and providing the time-compressed audio signal as the corresponding output audio signal. The method also includes determining that the delay is less than a threshold duration, and responsively providing the input audio signal as the corresponding output audio signal.

Abstract: A tape for collecting tissue samples in a manner compatible with imaging in a transmission electron microscopy (TEM) system, includes a tape substrate having two side walls forming a trough. The trough is defined by a bottom surface of the tape substrate and internal surfaces of the side walls, with an open side therebetween. A support film is attached to a top surface of the tape substrate, and a plurality of apertures is spaced at predetermined locations along the length of the tape substrate, each aperture being covered by the support film. The tape includes a stacked configuration in which the tape substrate is wound in layers, the bottom surfaces of the side walls in one layer being in contact with the support film in an immediately adjacent layer. The apertures in the second layer are aligned within the trough of the first layer, between the side walls.