Abstract: This disclosure describes a wearable display system configured to project light to the eye(s) of a user to display virtual (e.g., augmented reality) image content in a vision field of the user. The system can include light source(s) that output light, spatial light modulator(s) that modulate the light to provide the virtual image content, and an eyepiece configured to convey the modulated light toward the eye(s) of the user. The eyepiece can include waveguide(s) and a plurality of in-coupling optical elements arranged on or in the waveguide(s) to in-couple the modulated light received from the spatial light modulator(s) into the waveguide(s) to be guided toward the user's eye(s). The spatial light modulator(s) may be movable, and/or may include movable components, to direct different portions of the modulated light toward different ones of the in-coupling optical elements at different times.

Abstract: A method and system for increasing dynamic digitized wavefront resolution, i.e., the density of output beamlets, can include receiving a single collimated source light beam and producing multiple output beamlets spatially offset when out-coupled from a waveguide. The multiple output beamlets can be obtained by offsetting and replicating a collimated source light beam. Alternatively, the multiple output beamlets can be obtained by using a collimated incoming source light beam having multiple input beams with different wavelengths in the vicinity of the nominal wavelength of a particular color. The collimated incoming source light beam can be in-coupled into the eyepiece designed for the nominal wavelength. The input beams with multiple wavelengths take different paths when they undergo total internal reflection in the waveguide, which produces multiple output beamlets.

Abstract: An optical device may include a light turning element. The optical device can include a first surface that is parallel to a horizontal axis and a second surface opposite to the first surface. The optical device may include a light module that includes a plurality of light emitters. The light module can be configured to combine light for the plurality of emitters. The optical device can further include a light input surface that is between the first and the second surfaces and is disposed with respect to the light module to receive light emitted from the plurality of emitters. The optical device may include an end reflector that is disposed on a side opposite the light input surface. The second surface may be inclined such that a height of the light input surface is less than a height of the side opposite the light input surface. The light coupled into the light turning element may be reflected by the end reflector and/or reflected from the second surface towards the first surface.

Abstract: An apparatus to improve the hydrodynamics in an underwater pelletizer, without the need of any modification of the current design or geometry of the pelletizer. The apparatus according to the present invention is designed under specific conditions and parameters, that improve the hydrodynamics in an underwater pelletizer, working as a diffuser. The present invention is additionally related to a system for improving hydrodynamics in an underwater pelletizer.

Abstract: The present disclosure relates generally to biological entity-protein (e.g. protein-protein) interactions for potential therapeutic applications, and more specifically to high-throughput methods for identifying bridging molecules that induce the formation of recruited biological entity-bridging molecule-target protein complexes to effect said biological entity-protein interactions. The present disclosure also provides methods for using said bridging molecules for treatment of disorders mediated by the target protein of the recruited biological entity-molecule-target protein complex.

Abstract: An inverter subsystem that includes a direct current (DC) bus, a DC terminal, and a power storage interface that is configured to be connected to power storage. The DC terminal is configured to be: (1) connected to the DC bus via an internally-facing side of the DC terminal and (2) connected to a load via an externally-facing side of the DC terminal. The load is powered via the DC terminal.

Abstract: A gas turbine engine includes a fan section having a fan rotatable with a fan shaft, a turbomachinery section having a turbine and a turbomachine shaft rotatable with the turbine, a power gearbox mechanically coupled to the fan shaft and the turbomachine shaft such that the fan shaft is rotatable by the turbomachine shaft across the power gearbox, a grounded structure coupled to and supporting the power gearbox, and a torque monitoring system. The torque monitoring system includes a gearbox sensor. The gearbox sensor is coupled to the grounded structure and the torque monitoring system configured to determine a torque across the power gearbox using the gearbox sensor.

Abstract: A device for viewing a projected image includes an input coupling grating operable to receive light related to the projected image from a light source and an expansion grating having a first grating structure characterized by a first set of grating parameters varying in one or more dimensions. The expansion grating structure is operable to receive light from the input coupling grating and to multiply the light related to the projected image. The device also includes an output coupling grating having a second grating structure characterized by a second set of grating parameters and operable to output the multiplied light in a predetermined direction.

Abstract: Various cleaning devices with fluid tank empty detection and methods related thereto are provided. In general, a cleaning device can be configured to determine whether a fluid container is empty using an electromotive force (EMF) at a fluid pump configured to pump fluid from the fluid container. When the fluid container becomes empty, fluid cannot be supplied from the cleaning device to a surface until more fluid is added to the fluid container. Thus, by determining whether the fluid container is empty, a user of the cleaning device may be made aware when the fluid container becomes empty and needs refilling (or replacement).

Abstract: A data analytics system is disclosed that is configured to perform operations including receiving input data at a first storage location and configuring a flow service to execute a flow. The flow execution can include creating a pipeline using the flow and metadata associated with the flow, the pipeline configured to perform a data transformation specified in the flow. The flow execution can further include determining a tenancy associated with the input data using the flow. The flow execution can also include generating, using the pipeline, output data from the input data and storing, using the pipeline, the output data in a second storage location associated with the tenancy.

Abstract: A seal assembly at a rotor-stator interface includes at least one non-contacting seal interface and at least one rub detection feature. The rub detection feature(s) is configured to generate a signal upon the rotor and the stator making contact at the rotor-stator interface and causing wear above a certain threshold at the rotor-stator interface. The seal assembly also includes at least one sensor arranged at the rotor-stator interface. The sensor is configured to sense the signal. The seal assembly further includes a controller communicatively coupled with the sensor(s). The controller is configured to receive the signal and estimate at least one of an amount and a location of the wear at the rotor-stator interface based on the signal.

Abstract: A plasma processing apparatus. The plasma processing apparatus may include a plasma chamber, to define a plasma therein, and an extraction aperture, arranged along a first side of the plasma chamber, the extraction aperture to define an ion beam extracted therethrough. The plasma processing apparatus may further include a residence time tuning assembly, coupled to a portion of the plasma chamber, different from the first side, wherein the residence time tuning assembly comprises a pumping duct, connected to the plasma chamber on a first end, and defining a pumping path for extracting a gaseous species directly from the plasma chamber, separately from the extraction aperture.

Abstract: The present application provides a method and a system for recycling a polymer. The method includes introducing polymer into a primary melting extruder, producing a polymer melt that is combined with a fluid oil to at least partially dissolve the polymer melt. A secondary mixing extruder mixes these to form a polymer solution that is introduced into a refinery oil stream, producing a polymer-comprising oil stream, which is fed into a refinery process unit. The system includes a primary melting extruder for forming a polymer melt from polymer. A secondary mixing extruder receives the polymer melt. One or more hydrocarbon inflow conduits for providing a fluid oil to the primary melting extruder and/or the secondary mixing extruder are configured to form a polymer solution from the fluid oil and the polymer melt. There is a feed system outlet for feeding the polymer solution to a refinery oil stream.

Abstract: A method for operating a product configuration service, wherein the method comprises: receiving a query pertaining to a scope of searching for a configuration of a product; retrieving, based on the query, information from a self-referencing data model that stores the information as items having item types, wherein the information comprises: variables associated with an entity and values for the variables defined by files of the entity, wherein variables are defined by features that are linked to a source of the files, rules that specify compatibility constraints between the variables, and the information is used during runtime and not persisted to memory; generating, based on the rules and the variables, a solution space comprising the values; and presenting the solution space in a user interface of a computing device of a user.

Abstract: A low force pull-apart underwater connector apparatus, system, and a method of manufacturing. In one embodiment, a low-force pull-apart waterproof connector a receptacle having at least two receptacle pins, wherein the receptacle is electrically connected to a first wire, a plug having at least one plug pin, configured to selectively mate with the receptacle to form an electrical connection, wherein the at least one plug pin is oriented parallel to the at least two receptacle pins, and wherein the plug is electrically connected to a second wire, and a compressive seal sleeve filled with a marine-grade silicon grease tightly surrounding the electrical connection of the plug and the receptacle, and wherein the connection is operable to disconnect with the application of a low force.

Abstract: A method of reducing optical artifacts includes injecting a light beam generated by an illumination source into a polarizing beam splitter (PBS), reflecting a spatially defined portion of the light beam from a display panel, reflecting, at an interface in the PBS, the spatially defined portion of the light beam towards a projector lens, passing at least a portion of the spatially defined portion of the light beam through a circular polarizer disposed between the PBS and the projector lens, reflecting, by one or more elements of the projector lens, a return portion of the spatially defined portion of the light beam, and attenuating, at the circular polarizer, the return portion of the spatially defined portion of the light beam.

Abstract: An ultrasonic atomization material applicator includes a material applicator with at least one transducer and an array plate with an array of micro-applicators. Each of the micro-applicators has a material inlet, a reservoir, and a micro-applicator plate with a plurality of apertures. At least one supply line is in communication with the micro-applicators and configured to supply at least one material to each of the micro-applicators. The at least one ultrasonic transducer is mechanically coupled to the at least one array of micro-applicators and configured to vibrate the at least one array of micro-applicators such that atomized droplets of the at least one material are ejected from each of the micro-applicators. A movement device configured to cyclically move the at least one array of micro-applicators back and forth about at least one axis of the at least one array of micro-applicators can be included.

Abstract: A data analytics system configured to perform operations is disclosed. The operations can include creating, in response to instructions received from a user, a first pipeline. This pipeline can be configured to extract data from an append-only first data store, extract identifying characteristics from the extracted data, provide the identifying characteristics to an identity service, and receive a tenancy identifier from the identity service. The pipeline can further be configured to create a data object in a second data store using the extracted data; create a tenancy object in a metadata store, the tenancy object associated with the data object, the metadata store implementing a hierarchical data object ownership graph; and associate the tenancy object with a parent object in the hierarchical data object ownership graph. The data analytics system can then tear down the first pipeline.

Abstract: An electrostatic clamp system may include a conductive base; a ceramic body, having an inner side that is attached to the conductive base, and an outer side to face a substrate, the ceramic body including an electrode assembly; and a charge control assembly, the charge control assembly defining an electrically conductive structure that is isolated from the electrode assembly and extends through the conductive base to an upper surface of the outer side of the ceramic body.

Abstract: An eyepiece for projecting an image to a viewer includes a substrate positioned in a substrate lateral plane and a set of color filters disposed on the substrate. The set of color filters comprise a first color filter disposed at a first lateral position and operable to pass a first wavelength range, a second color filter disposed at a second lateral position and operable to pass a second wavelength range, and a third color filter disposed at a third lateral position and operable to pass a third wavelength range. The eyepiece further includes a first planar waveguide positioned in a first lateral plane adjacent the substrate lateral plane, a second planar waveguide positioned in a second lateral plane adjacent to the first lateral plane, and a third planar waveguide positioned in a third lateral plane adjacent to the second lateral plane.