Abstract: A guided cold-atom inertial sensor system comprises an atom trap integrated platform, a laser system, a magnetic field system, a control system, and a computing system. The laser system and magnetic field system are adapted to form a magneto-optical trap (MOT) about a suspended waveguide of the atom trap integrated platform made of membrane integrated photonics. After loading cold atoms from a MOT, the photonic atom trap integrated platform generates one-dimensional guided atoms with an evanescent field optical dipole trap (EF-ODT) along the optical waveguide to create guided atomic accelerometers/gyroscopes. Motion of atomic wavepackets in a superposition state is created along the guided atom geometry by way of state-dependent momentum kicks. The light-pulse sequence of guided atom interferometry splits, redirects, and recombines atomic wavepackets, which allows measurement of atom interference fringes sensitive to inertial forces via a probe laser.

Abstract: Optical distribution systems for data centers or similar networks are disclosed, where one or both ends of a high fiber-count backbone cable branch out once to serve multiple buildings. The optical distribution systems include the backbone cable, an enclosure that receives an end portion of the backbone cable, a plurality of tether cables connected to the backbone cable within a sealed interior of the enclosure and extending from the enclosure, and a plurality of multiport terminals each receiving one of the tether cables and including connection ports for an auxiliary cable that can extend to one of the buildings. Related methods are also disclosed.

Abstract: The present invention relates to a wind turbine blade (10) comprising an aerodynamic shell (83) having an outer surface (84) forming at least part of an exterior surface of the wind turbine blade and an inner surface (85). An access window (80) extends through the shell (83). A panel (87) is arranged within a recessed portion (86) at the inner surface of the shell adjacent to the access window (80) for closing the access window (80).

Abstract: A routing tool for the installation of a fiber optic cable along a cable support includes a cable support frame having a mounting interface, wherein the cable support frame is selectively attachable to and detachable from the cable support, and a dispensing platform configured to have the fiber optic cable arranged thereon and selectively attachable to and detachable from the cable support frame. The dispensing platform is configured to be rotatable relative to the cable support frame about a rotational axis. The rotational axis is configured to be laterally offset from the mounting interface. A method of installing a fiber optic cable using the routing tool includes attaching the cable support frame to the cable support, attaching the dispensing platform to the cable support, and dispensing the fiber optic cable from the routing tool to route the cable along the cable support.

Abstract: A fluid end assembly comprising a housing having multiple conduits formed therein. A tubular sleeve is installed within one of the conduits and is configured to house a plurality of packing seals. A seal is installed within a groove formed in the walls of the housing surrounding the tubular sleeve such that the seal engages an outer surface of the tubular sleeve.

Abstract: Methods and systems are disclosed for performing generating AR experiences on a messaging platform. The methods and systems receive, from a client device, a request to access an augmented reality (AR) experience and access a list of event types associated with the AR experience used to generate one or more metrics. The methods and systems determine that an interaction associated with the AR experience corresponds to a first event type of the list of event types and generates interaction data for the first event type representing the interaction. In response to receiving a request to terminate the AR experience, the systems and methods transmit the interaction data to a remote server.

Abstract: A fiber optic cable assembly including a main cable portion having a plurality of subunit cables and tap points at which the subunit cables are separated from the main cable portion. A junction shell is positioned at each tap point. The subunit cable is pivotable to two orientations relative to the main cable portion in the junction shell.

Abstract: A system for an electrophotographic image forming device includes a toner container having a reservoir for storing toner and an impact member configured to selectively impart an impulse force on the toner container to cause vibration of the toner container. A sensor is configured to sense the vibration of the toner container upon the impact member imparting the impulse force on the toner container. Processing circuitry in communication with the sensor is configured to determine an estimate of an amount of toner in the reservoir based on the sensed vibration of the toner container.

Abstract: A system for sensing material within a container includes a container having a reservoir for storing material and an impact member configured to selectively impart an impulse force on the container to cause vibration of the container. A sensor is configured to sense the vibration of the container upon the impact member imparting the impulse force on the container. Processing circuitry in communication with the sensor is configured to determine an estimate of an amount of the material in the container based on the sensed vibration of the container.

Abstract: Fire spikes and fire spike tips adapted to penetrate a surface and distribute a fire suppressant, such as, water, on the opposite side of the surface are provided. The fire spike tips include a cylindrical body having a first end adapted to be received by a conduit and a second end having a pointed projection adapted to penetrate the surface; an internal cavity in the cylindrical body having an open first end and a closed second end; a plurality of first orifices in the body, each of the plurality of first orifices directed in a first substantially radial direction; and a plurality of second orifices in the body, each of the plurality of second orifices directed in a second direction which at least partially intersects with the first direction of the plurality of first orifices. Kits for the fire spikes and methods of suppressing fire are also provided.

Abstract: An electrical connector that has a conductive shell supporting at least one signal contact therein and that has a front end for mating with a mating connector and a back end opposite the front end for electrically connecting to a coaxial cable. A ground connection is located inside of the conductive shell. A coupling member is rotatably coupled to the conductive shell and has an engagement feature for mechanically engaging a support panel associated with the mating connector. A sealing member is disposed on the conductive shell that is configured to provide an environmental seal between the conductive shell and the support panel when the conductive shell is mated with the mating connector.

Abstract: An integrated circuit includes a plurality of analog inputs, and an analog multiplexer (MUX). The MUX includes a common output node configured to provide a MUX output, a plurality of analog switches, and a shared buffer. Each switch includes a corresponding bootstrap circuit coupled to a control electrode of a corresponding pass transistor in which the corresponding bootstrap circuit includes a corresponding boosting capacitor. Each analog switch of the plurality of analog switches has a first input coupled to a corresponding analog input of the plurality of analog inputs, a second input, and an output coupled to the common output node. The shared buffer has an input coupled to the common output node and coupled to provide a common buffered MUX output to the second input of each of the plurality of analog switches.

Abstract: An apparatus 100 for determining orientation of a segment 32 and 30 of a wind turbine blade 28 is disclosed. The apparatus includes an elongated member 1 and a support plate 2 provided at one end of the elongated member 1. The support plate 2 is defined with one or more provisions 4 to facilitate connection with the segment 32 and 30 of the wind turbine blade 28. Further, a measuring plate 3 is provided at another end opposite to the one end of the elongated member 1, where the measuring plate 3 is defined with a substantially airfoil profile 35. The measuring plate 3 includes a plurality of markers 18 disposed along an airfoil region 34 where, each of the plurality of markers 18 is indicative of one or more of multiple parameters to determine the orientation of the segment 32 and 30. FIG. 6 is the representative figure.

Abstract: A high pressure pump comprising a fluid end mechanically coupled to a power end. The power end is modular and comprises a crankshaft section, a crosshead section, and a connector section coupled together by a first set of stay rods. The fluid end comprises a plurality of fluid end sections positioned in a side-by-side relationship. Each of the plurality of fluid end sections are attached to the power end using a plurality of second set of stay rods.

Abstract: A technology is described for a repeater. The repeater can comprise a first antenna port, a second antenna port, one or more first direction amplification and filtering paths, one or more second direction amplification and filtering paths, and a controller. The first antenna port can be configured to be coupled to a first antenna. The second antenna port can be configured to be coupled to a second antenna. The one or more first direction amplification and filtering paths can be coupled between the first antenna port and the second antenna port. The one or more second direction amplification and filtering paths can be coupled between the first antenna port and the second antenna port. The controller can be configured to switch the repeater between a radio frequency (RF) mode or a fiber optic mode.

Abstract: A single pass inkjet printer that utilizes a modular printing system with one or more self-contained printing modules, where each printing module is easy to remove and replace from a large printing machine, thus resulting in an overall system that is easy to service and maintain Each module is a self-contained printer including an ink supply, printhead drive electronics, and printhead assembly in order to provide one color or fluid of inkjet printing capability. Each module includes a precise three-point compliant self-aligning mount system to obtain accurate printhead positioning, and a unique integrated printhead tending system that includes a compact movable vacuum knife for cleaning the printheads, and a printhead capping station for sealing and protecting the printheads from the ambient environment when not in use.

Abstract: Methods of separating semiconductor dies are described. The method can separate individual semiconductor dies from a semiconductor wafer without using a blade. The methods include a plasma etch process utilizing metal structures formed on a back side of the wafer as masks to remove a portion of the semiconductor wafer from the back side. The portion removed by the plasma etch process corresponds to the scribe lines between the semiconductor dies. The plasma etch process terminates at a dielectric layer formed on a front side of the wafer. The dielectric layer may be severed to complete the separation process. Moreover, an ultrasonic water jet process may be utilized to remove burrs of the dielectric layer that has been severed.

Abstract: A method and system for activity classification. A pressure sensor receives input data resulting from physical activity of a subject performing an activity. The input data includes pressure data from at least one pressure sensor, and may include other data acquired through other types of sensors. A deep learning neural network is applied to the input data for identifying the activity. The neural network is trained with reference to training data from a training database. The training data may include empirical data from a database of previous data of corresponding activities, synthesized data prepared from the empirical data or simulated data. The training data may include data from physical activity of the subject being monitored by the system. Different aspects of the neural network may be trained with reference to the training data, and some aspects may be locked or opened depending on the application and the circumstances.

Abstract: A fiber optic cable includes an outer jacket, a plurality of optical fibers within the outer jacket, and a pull grip at an end of the fiber optic cable for pulling the cable through a pathway during installation of the cable. The pulling of the fiber optic cable through the pathway causes a tensile load to be imposed on the fiber optic cable. To accommodate the tensile load, the fiber optic cable further includes a load distribution member coupled to the pull grip and to the plurality of optical fibers. The load distribution member distributes the tensile load on the fiber optic cable over the plurality of optical fibers such that the plurality of optical fibers collectively provides the tensile strength to support the tensile load during routing of the fiber optic cable through the pathway. In this way, strength members may be omitted from the design of the cable and more optical fibers may fit within existing pathways. A method of making and a method of using such a fiber optic cable is also disclosed.

Abstract: In examples, a chip scale package (CSP) comprises a semiconductor die; a conductive terminal coupled to the semiconductor die; and a non-conductive coat covering a backside of the semiconductor die and a sidewall of the semiconductor die. The non-conductive coat has a thickness of less than 45 microns.