Abstract: A rim for a bicycle wheel includes a radially inner portion disposed along an inner circumference of the rim. The rim also includes a first sidewall and a second sidewall spaced apart from the first sidewall. The first sidewall and the second sidewall extend radially outward from the radially inner portion. The first sidewall includes a layer of a composite material. The layer of the composite material includes fabric plies of the composite material that are shaped as strips. The composite material includes a matrix of a polymer-based material and fibers of a reinforcing material. The strips include a first strip and a second strip. The second strip is adjacent to the first strip within the layer of the composite material. The second strip is nonparallel to the first strip.

Abstract: Aspects of the present disclosure include a navigation system and computer-implemented methods for detecting traffic disruption events based on an analysis of input component data obtained from navigation-enabled devices of vehicles near a particular location. Traffic disruption events are events such as accidents, construction road closures, police and speed traps, or road hazards that cause a decrease in the flow of traffic along a particular route and thus, added time delays for occupants of vehicles traveling along those routes. The navigation system scores the input component data associated with each vehicle and aggregates the scored input component data to obtain a frustration score associated with the vehicle. The navigation system may detect traffic disruption events based on a number of vehicles near a particular area having associated frustration scores above a certain threshold.

Abstract: Forming features in the surface of a bicycle component involves depositing a substance onto a substrate in a geometric pattern to form a transfer medium. Forming features may also involve positioning the transfer medium relative to an unformed bicycle component, and forming a negative of the geometric pattern in the bicycle component through the application of heat and/or pressure to the transfer medium and the unformed bicycle component. The transfer medium may be configured for use in the molding of carbon fiber reinforced plastic (“CFRP”) bicycle components and may include a substrate formed of a flexible material, and a geometric pattern formed of a hard material, the hard material different than the flexible material.

Abstract: An eye monitoring system is included in a headset of a virtual reality system or of an augmented reality system. The eye monitoring system determines distances between the eye monitoring system and portions of a user's eye enclosed by the headset. The eye monitoring system projects a temporally periodic pattern of light onto the user's eye via a sensor. The eye monitoring system determines a distance between the eye monitoring system and locations of the user's eye based on a phase shift of the periodic pattern of light captured by each pixel of the sensor. From the determined distances, the eye monitoring system determines features of the user's eye.

Abstract: A device for filtering air for a user comprising a frame formed in a generally oval-shaped band, the band encircling the user's head, with an upper portion above the user's head and a lower portion proximate to and spaced apart from the user's chin, an intake aperture formed in the frame, and an intake air filter covering the intake aperture. The device includes an air mover chamber attached with an air-tight seal to an inside surface of the frame and communicating on one end with the intake air filter and communicating on another end with a filtered air supply inlet inside the device and an air mover disposed within the air mover chamber and configured to draw air through the intake air filter and push air out the filtered air supply inlet. The device also includes an exhaust aperture formed in the frame and an exhaust air filter covering the exhaust aperture.

Abstract: A device for filtering air for a user comprising a frame formed in a generally oval-shaped band, the band encircling the user’s head with an upper portion extending from the user’s ear to a point above and to the rear of the user’s head and a lower portion extending from the user’s ear to a point below and in front of the user’s mouth. The device includes an air inlet filter mounted on the frame and communicating on one side with ambient air outside the device and on the other side with an inlet duct and an air outlet filter mounted on the frame and communicating on one side with air inside the device and on the other side with ambient air outside the device. The device also includes a battery-powered air mover mounted on the frame and operable to move intake air through the air inlet filter through the inlet duct and into the inside of the device. A rechargeable battery is mounted on the frame to power the air mover.

Abstract: A device for filtering air for a user comprising a frame formed in a generally oval-shaped band, the band encircling the user's head, with an upper portion extending above and behind the user's ears and a lower portion extending below and in front of the user's ears. The device includes components mounted to the frame, comprising an air intake filter mounted on the frame and communicating on one side with ambient air outside the device and on the other side with an inlet duct and an air outlet filter mounted on the frame and communicating on one side with air inside the device and on the other side with ambient air outside the device. The device also includes a battery-powered air mover mounted on the frame and operable to pull air through the air intake filter and through the inlet duct and push air out into the inside of the device and a rechargeable battery mounted on the frame to power the air mover.

Abstract: Water purification systems including an inlet chamber, a purification module, a purified water outlet, and an impure water outlet. The inlet chamber is configured to receive an input water stream. The purification module includes a purification chamber configured to divide the input water stream into a purified water stream fluidly coupled to the purified water outlet and an impure water stream fluidly coupled to the impure water outlet. The purification chamber includes a first hydrophilic surface and a second hydrophilic surface spaced from the first hydrophilic surface. The first hydrophilic surface and the second hydrophilic surface cooperate to establish purified zones of substantially pure water and an impure zone of impurity concentrated water from the input water stream. The purified water stream is supplied by substantially pure water from the purified zones and the impure water stream is supplied by the impurity concentrated water from the impure zone.

Abstract: A switchable fringe pattern illuminator includes an optical path switch configured to receive light and dynamically control an amount of light that is provided to a first waveguide and an amount of light that is provided to a second waveguide. A first projector configured to generate a first fringe pattern using light from the first waveguide. The first fringe pattern illuminates a first portion of a target area. A second projector configured to generate a second fringe pattern using light from the second waveguide. The second fringe pattern illuminates a second portion of a target area. The illuminator may be part of a depth camera assembly (DCA). The DCA is configured to capture images of a portion of the target area. The DCA is further configured to determine depth information for an object in the target area based in part on the captured images.

Abstract: A system for sanitizing water in a hot tub is described. The system includes a sanitizing chamber, separate from the hot tub, and sized to hold a small portion of the water from the hot tub. A first conduit for conveys water from the hot tub to the sanitizing chamber. A second conduit conveys water from the sanitizing chamber to the hot tub. A pump is provided that moves water from the hot tub, through the first conduit into the sanitizing chamber and from the sanitizing chamber, through the second conduit, back into the hot tub. A heater heats the water in the sanitizing chamber to a temperature and for a time sufficient to destroy or deactivate undesirable microorganisms.

Abstract: A camera assembly for determining depth information for a local area includes a light source assembly, a camera assembly, and a controller. The light source assembly projects pulses of light into the local area. The camera assembly images a portion of the local area illuminated with the pulses. The camera assembly includes augmented pixels, each augmented pixel having a plurality of gates and at least some of the gates have a respective local storage location. An exposure interval of each augmented pixel is divided into intervals associated with the gates, and each local storage location stores image data during a respective interval. The controller reads out, after the exposure interval of each augmented pixel, the image data stored in the respective local storage locations of each augmented pixel to generate image data frames. The controller determines depth information for the local area based in part on the image data frames.

Abstract: A direct time of flight depth system includes an addressable illumination source, an active depth sensor, and a controller. The addressable illumination source includes an array of emitters and an optical assembly that is used to generate an array of dots emitted into a local area. Each emitter is independently addressable, allowing selective illumination of different portions of the local area. The addressable illumination source is aligned with the active depth sensor so each dot maps to a corresponding macropixel (e.g., 4×4 array of SPADs) on the active depth sensor. Data from the active depth sensor is readout and used to determine depth information.

Abstract: Techniques for aggregating and emitting database activity record batches are described. Database activity records can be written to a shared memory queue and emitted to a destination using a remote procedure call (RPC). Individual database connection server processes can write client activity records to the queue. An activity monitor plugin in the database engine can monitor the audit records and aggregate the audit records into batches. Batches of audit records can be sent via RPC to their final or intermediate destination. Each instance host in a database service can include a client backend process configured to define how to submit audit records to shared memory. The activity monitor plugin can batch audit records in to messages and submit those messages via RPC to a security host manager and relaying response back to each relevant client backend.

Abstract: A winch drum is disclosed. In a first aspect, a first set of teeth are positioned around an outer perimeter of a drum. The first set of teeth taper from a first crown to a first base. A second set of teeth are positioned around the outer perimeter of the drum. The second set of teeth taper from a second crown to a second base. The second set of teeth are offset from the first set of teeth such that a gap between the first bases and the second bases forms a sinusoidal channel for a line to follow the first set of teeth and the second set of teeth becomes a guide for the line so that the line can engage the sinusoidal channel. The line follows the sinusoidal channel and each change of direction along the sinusoidal path causes the line to engage by friction with the first bases and the second bases. In a second aspect, the drum includes a trough that follows a sinusoidal path and wherein the trough is narrower at its bottom than at its top.

Abstract: A line tensioner is disclosed. A winch has a winch drum with at least one groove over which a line is passed. The winch has a line tensioner assembly with a stationary cam surface and a plurality of line tensioners rotating with the winch drum. Each has a line gripping portion and a cam follower. The line gripping portion is brought into and out of contact with the line as the cam follower rides along at least a portion of the cam surface.

Abstract: A device to disinfect air filtering headwear comprising a chamber, an access port, a first disinfectant emitter to disinfect an outer surface of the headwear, and a mount wherein personal protection headwear is placed on, the mount comprises a second disinfectant emitter to disinfect an inner surface of the headwear.

Abstract: This invention relates to a method of forming crystals of chemical molecules. The methods are effective even when only very small amounts of a compound are available and can be used to explore the experimental crystallisation space including screening for optimal crystallisation conditions such as for polymorphic phases, salts, solvates and co-crystals of chemical molecules and to provide single crystals for structural determination of unknown molecules by single crystal X-ray crystallography.

Abstract: An air filtering mask is disclosed which includes a rigid component and a flexible component. The rigid component and the flexible component combine to form a space over a user's mouth and nostrils, to form a seal therearound and to maintain the mask in place. The mask also includes an exhaust port with an exhaust filter and an intake port with an intake filter. The mask further includes an air mover pulling exhaust air out the exhaust port, thereby drawing intake air through the intake port.

Abstract: A head covering air filtering device comprising a rigid component comprising a transparent face shield, a fabric component, wherein the rigid component and the fabric component combine to cover an entire head of a user and form a seal around the user's neck. The device further comprises an intake filter to filter all intake air entering the device, an exhaust filter to filter all exhaust air exiting the device, and an air mover causing intake air to enter the device and exhaust air to exit the device.