Abstract: An optical device includes a spatial light modulator configured to project image light, a diffractive lens, and a polarization-selective reflector. The spatial light modulator defines an optical axis. The diffractive lens is positioned to receive the image light from the spatial light modulator. The polarization-selective reflector is positioned to receive the image light from the diffractive lens. The polarization-selective reflector having a polarization-selective reflective surface in an orientation that is non-perpendicular to the optical axis of the spatial light modulator.

Abstract: A device includes a first substrate having a principal surface; a second substrate having a principal surface, in which the first substrate is bump-bonded to the second substrate such that the principal surface of the first substrate faces the principal surface of the second substrate; a circuit element having a microwave frequency resonance mode, in which a first portion of the circuit element is arranged on the principal surface of the first substrate and a second portion of the circuit element is arranged on the principal surface of the second substrate; and a first bump bond connected to the first portion of the circuit element and to the second portion of the circuit element, in which the first superconductor bump bond provides an electrical connection between the first portion and the second portion.

Abstract: A method of making a stator for a rotating electrical machine in which a tooth segment from a high saturation induction material and a yoke segment from a silicon steel material. The tooth segment is bond to yoke segment, thereby producing a stator with at least two magnetic saturations.

Abstract: Described are energy storage devices employing a gas storage structure, which can accommodate or store gas evolved from the energy storage device. The energy storage device comprises an electrochemical cell with electrodes comprising metal-containing compositions, like metal oxides, metal nitrides, or metal hydrides, and a solid state electrolyte.

Abstract: A plurality of photovoltaic (PV) modules are configured into a PV string to generate a PV string voltage in a solar power system. The number of PV modules per PV string is based on operating conditions at the solar power system site and cause the PV string voltage to exceed a maximum voltage specification when operating at the lowest expected ambient temperature at the site, but only exceeds the maximum voltage specification for a limited number of occurrences for which the operating conditions at the site cause the PV string voltage to exceed the maximum voltage specification. Under control of a string voltage control circuit, voltage bypass circuits selectively bypass the bypass photovoltaic module so as to eliminate the PV module from the PV string voltage when the operating conditions at the site cause the PV string voltage to exceed the maximum voltage specification.

Abstract: A vehicle includes a battery, an electric machine, an electrical outlet, and a controller. The electric machine is configured to charge the battery. The electrical outlet is configured to draw power from the battery to power an external device. The controller is programmed to adjust a rate at which the electric machine charges the battery based on a power consumption at the electrical outlet exceeding a threshold and a battery degradation value.

Abstract: Methods, systems, and media for generating a notification in connection with a video content item are provided. In some embodiments, the method comprises: causing a video content item and a message interface to be presented on a plurality of user devices, wherein the video content item is created by a content creator; receiving, from at least a portion of the plurality of user devices, a plurality of messages via the message interface; identifying at least one topic included in a portion of the plurality of messages within a given period of time; causing a notification that indicates the at least one topic to be superimposed on the presentation of the video content item on the plurality of user devices; determining that the at least one topic is no longer included in more than a predetermined number of the plurality of messages; and causing presentation of the notification to be inhibited on the plurality of user devices.

Abstract: A device for providing vestibular and somatosensory stimulation through bone conduction of sound waves to skeletal bones is provided in the form of a pad that is applied to or wrapped around the individual in treatment, which is comfortable in use and may contain particulate filler material capable of providing bone conduction stimulation adjacent to the location of a bone conduction transducer and expand the sound conduction site over a larger area. The device may be located beneath a pillow or mattress.

Abstract: A dynamic experimentation evaluation system provides a framework in which a continuous stream of metric data is monitored to establish a causal relationship between changes in a software program and the effect of user-observable behavior. In one aspect, an A/B test is performed continuously on a stream of metric data representing the usage of a control version of software product and the usage of a treatment version of the software product. A sequential probability ratio test (SPRT) is used as the test statistic to determine when to terminate the test and produce results within a specific confidence interval and controlled error rate.

Abstract: A vehicle includes a controller, programmed to responsive to receiving a credential for connecting to a wireless network from a mobile device, connect to the wireless network using the credential; and establish a link with the mobile device via the wireless network, wherein the credential is received through a cloud server via a wireless connection other than the wireless network.

Abstract: A transmitting circuit. In some embodiment, the transmitting circuit includes a slot antenna and an amplifier. The slot antenna may include a slot in a conductive sheet, and it may have a first resonant frequency, the first resonant frequency being within 20% of a slot frequency which is between a first frequency corresponding, in a first volume, to a wavelength twice the length of the slot, and a second frequency corresponding, in a second volume, to a wavelength twice the length of the slot. The amplifier may be connected to the slot through a connection including a conductive path, between the amplifier and the slot, having a length less than 0.2 times the length of the slot. The magnitude of the output impedance of the amplifier may be less than 0.25 times the magnitude of the impedance of the slot antenna at a first resonant frequency.

Abstract: Systems, methods and apparatus for multi-realm, computer-generated reality systems are disclosed. A method for managing a multi-realm, computer-generated reality includes determining one or more variances between each activity of a first participant and a corresponding baseline activity for each of a plurality of activities associated with traversal of a managed reality system during a session, and quantifying the one or more variances to obtain a performance metric. The method includes combining at least one performance metric for each activity of the first participant to obtain a session performance measurement for the first participant.

Abstract: A fiber optic sensor and a related method of manufacture are provided. The fiber optic sensor includes an embedded optical fiber contained within a metal diaphragm assembly, where the terminal end of the optical fiber is positioned opposite a diaphragm. The method includes forming a metal-embedded optical fiber by ultrasonic additive manufacturing and securing the metal-embedded optical fiber to a housing having a diaphragm that is opposite of the terminal end of the optical fiber. The sensor can provide extremely accurate pressure measurement at high temperatures and in highly corrosive media. An optical fiber-based pressure sensing system is also provided.

Abstract: A method and system for performing semi or fully automatic data imbalance detection and correction in training a machine-learning (ML) model includes receiving a request to train the ML model, receiving access to a dataset for use in training the ML model, identifying a feature of the dataset for which data imbalance detection is to be performed, examining the dataset to determine a distribution of the feature across the dataset, determining if the distribution of the feature across the dataset indicates data imbalance, upon determining that the distribution of the feature across the dataset indicates data imbalance, identifying a desired distribution for the identified feature, selecting a subset of the dataset that corresponds with the selected feature and the desired distribution, and using the subset to train the ML model.

Abstract: Discloses is a micro-pump that includes a pump body having a compartmentalized pump chamber, with plural inlet and outlet ports and a plurality of membranes disposed in the pump chamber to provide compartments. The membranes are anchored between opposing walls of the pump body and carry electrodes disposed on opposing surfaces of the membranes and walls of the pump body. Also discloses are applications of the micro-pump including as a heat remover and a self-contained continuous positive airway pressure breathing device.

Abstract: A vehicle includes a sprung mass including a cabin coupled to a chassis, tractive assemblies each including at least one tractive element, springs coupling the tractive elements to the sprung mass, each spring imparting an upward force on the sprung mass, load sensors each configured to provide a signal indicative of the force imparted by one of the springs, and a controller operatively coupled to the load sensors. The controller is configured to determine a weight of the sprung mass using the signals from the load sensors and monitor at least one operational condition of the vehicle. The controller is configured to determine whether or not to disable determination of the weight based on the at least one operational condition.

Abstract: Data may be replicated from a host storage system to a target storage system. It may be determined to replicate a first logical storage element on the source storage system to a second logical storage element on the target storage system, wherein the first logical storage element defines a first data portion having a first value. It may be determined that a third logical storage element on the target storage system defines a second data portion having the first value. The first logical storage element may be replicated to the second logical storage element by establishing a deduplication relationship between the second logical storage element and the third logical storage element on the target storage system without transmitting the first data portion from the source storage system to the target storage system.

Abstract: One aspect of the invention provides a computer-implemented method for controlling a swimming pool or spa system. The computer-implemented method includes: creating a data structure representing a plurality of swimming pool system components and fluidic connections between subsets of the plurality of swimming pool system components; receiving a request to control one or more of the plurality of swimming pool system components; calculating fluidic flows through the plurality of swimming pool system components based on one or more potential configurations of the plurality of swimming pool system components capable of fulfilling the request; and detecting whether the one or more potential configurations result in unsatisfactory conditions.

Abstract: A prosthesis for implantation in a de-nucleated intervertebral disc includes a fiber ring-like layer which encloses a polymeric layer to create an annular space. The annular space is inflatable with an in-situ curable liquid polymer and forms an interior cavity. The annular space may be expanded uniformly or differentially to be tailored to the needs of a particular vertebral segment and to achieve optimal disc space width and angle, thereby stabilizing the segment while preserving normal motion of the vertebral segment. The interior cavity provides a void that allows inward deformation of the implant during weight bearing activities and bending. The prosthesis can be elastically deformed through axial elongation to a reduced profile to load into a delivery cannula using pulling techniques.

Abstract: A dual mass flywheel coupling member for selectively coupling a primary mass and a secondary mass of a dual mass flywheel, the coupling member comprising: a central aperture for enabling axial alignment with the primary mass and the secondary mass; at least one resiliently deformable member, the resiliently deformable member comprising a fixing point attachable to the primary mass to rigidly couple one end of the resiliently deformable member to the primary mass; and at least one engagement feature coupled to the coupling member at a point remote from the fixing point, wherein the engagement feature is configured to engage the secondary mass upon deformation of the resiliently deformable member in an installed configuration.