Abstract: A head-mounted display system includes a head-mounted display unit a display that, in use, is held in an operational position over a user's face. The head-mounted display system further comprises a flow generator configured to generate a flow of air, and an air guide arrangement coupled to the flow generator to enable the flow generator to direct air to, or draw air from, one or more selected areas in proximity of the head-mounted display system.

Abstract: A head-mounted display system includes a head-mounted display system, comprising a head-mounted display unit, comprising various pad options at various positions on the head including saddle shaped nose pads that deform under a reaction force applied to the apex of the nose to improve load distribution, forehead pads with an associated mounting structure and inserts that affect compliance and/or size, temporal pads configured to lie against the temporal bone which support some of the weight of the head mounted display system and, further stabilizing pads which are located on a rigid portion of the temporal arms and designed to extend along temporal regions of the users head.

Abstract: The present disclosure relates to methods and intermediates useful for preparing a compound of formula I: or a co-crystal, solvate, salt or combination thereof.

Abstract: Alternating magnetic field (AMF) systems and devices and methods for producing nanobubbles said methods and devices. The AMF systems and devices of the present invention may feature sets of magnets configured to expose a flowing liquid to an alternating magnetic field. The alternating magnetic field destabilizes dissolved gas molecules to produce nanobubbles. The methods, systems, and devices of the present invention may be used to treat solution, for reducing fouling or corrosion in a tube system or pipe system, methods for increasing water porosity of soil, methods for treating thromboembolic disease, etc.

Abstract: Various shaped abrasive particles are disclosed. Each shaped abrasive particle includes a body having at least one major surface and a side surface extending from the major surface.

Abstract: A sound pressure metrology instrument determines sound pressure from index of refraction and includes: a light source that produces source light; the optical cavity that: receives an acoustic field from the sound source; receives the source light from the light source; produces acoustic-modified light from the source light; and communicates the acoustic-modified light to the photodetector; the photodetector that receives the acoustic-modified light from the optical cavity, produces an acoustic-modified signal from the acoustic-modified light, and communicates the acoustic-modified signal to the analyzer module; the analyzer module in electrical communication with the photodetector and that receives the acoustic-modified signal from the photodetector and determines the sound pressure of the acoustic field produced by the sound source from the modulations in the index of refraction of the acoustic medium inside the optical cavity encoded in the acoustic-modified light.

Abstract: Certain embodiments of the present application relate to a method for releasing a parcel from an unmanned aerial vehicle (UAV). The parcel is engaged with a hook attached to a line suspended from the UAV. The method includes lowering the hook such that the parcel is at least partially supported by a target surface, thereby performing an attempt to release the parcel from the hook, performing at least one iteration of an iterative procedure. The iterative procedure includes raising the hook, and determining whether the line remains loaded. The iterative procedure further includes lowering the hook an additional time in response to a determination that the line remains loaded, thereby performing an additional attempt to release the parcel from the hook. The iterative procedure further includes performing an additional iteration of the iterative procedure in response to the number of attempts failing to satisfy a threshold number of attempts.

Abstract: Certain embodiments of the present application relate to an unmanned aerial vehicle including a control system, at least one rotor operable to generate lift under control of the control system, a spool mounted for rotation in a winding direction and an unwinding direction opposite the winding direction, a motor operable to rotate the spool in at least the winding direction under control of the control system, and a brake mechanism including a brake actuator operable to transition the brake mechanism between a locked state and an unlocked state under control of the control system. The brake mechanism in the locked state prevents rotation of the spool in at least the unwinding direction. The brake mechanism in the unlocked state does not prevent rotation of the spool in the unwinding direction.

Abstract: Certain embodiments of the present application relate to a method for releasing a parcel from an unmanned aerial vehicle (UAV). The parcel is engaged with a hook attached to a line suspended from the UAV. The method includes lowering the hook such that the parcel is at least partially supported by a target surface, thereby performing an attempt to release the parcel from the hook, performing at least one iteration of an iterative procedure. The iterative procedure includes raising the hook, and determining whether the line remains loaded. The iterative procedure further includes lowering the hook an additional time in response to a determination that the line remains loaded, thereby performing an additional attempt to release the parcel from the hook. The iterative procedure further includes performing an additional iteration of the iterative procedure in response to the number of attempts failing to satisfy a threshold number of attempts.

Abstract: Certain embodiments of the present application relate to an unmanned aerial vehicle, comprising a chassis, a control system mounted to the chassis, at least one rotor operable to generate lift under control of the control system, a spool having a wound portion of a line wound thereon, the line including a free portion, an attachment device secured to the free portion of the line and configured to facilitate attachment of a parcel to the line, a motor operable to rotate the spool under control of the control system such that the control system is operable to raise the attachment device to a raised position and lower the attachment device from the raised position, and a spring positioned between the chassis and the attachment device such that the spring is engaged between the chassis and the attachment device when the attachment device is in the raised position.

Abstract: A low-profile, backlit panel assembly and a controller for displaying images and/or data within a passenger compartment of a vehicle are provided. The assembly includes a substrate panel perforated with a two-dimensional array of closely-spaced holes. The panel is configured to be attached to a support structure of the vehicle. The assembly further includes a plurality of semiconductor-based, lighting devices supported at a back surface of the panel. Each of the lighting devices includes at least one lighting element. Each of the lighting elements is individually addressable by the controller to control luminous intensity of the light emitted by the at least one lighting element. Each of the lighting devices is aligned with one of the holes so that light emitted by each of the lighting devices travels through its hole to the passenger compartment in the form of a pixel of a two-dimensional image.

Abstract: A hunting cart assembly includes a cart that includes a first frame which is pivotally coupled to a second frame such that the cart is positionable between a folded position for storage and an unfolded position for utilization. A pair of wheels is each rotatably disposed on the second frame to roll along a support surface. A pair of motors is each integrated into a respective one of the wheels. Each of the motors rotates the respective wheel in a first direction when the motors are turned on to urge the cart along the support surface. A lever is pivotally coupled to a respective one of the handles and the lever is in communication with the pair of motors. Each of the motors is turned on when the lever is urged into an actuating condition and each of the motors is turned off when the lever is biased into a de-actuating condition.

Abstract: The present invention relates to a composition comprising a 3D printed hydrogel, wherein at least two different populations of cells are embedded in the 3D printed hydrogel. The different populations of cells can produce one or more products. The 3D printed hydrogel can be lyophilized and rehydrated, and the cells can continue to produce the product. Also disclosed are methods of producing a product, and methods of producing a 3D printed hydrogel comprising different populations of cells.

Abstract: A device for dispensing a material having: a first surface with an orifice; a second surface opposite the first surface; a first endface comprising an annular opening; a second endface opposite the first endface; a cavity defined by the above. An actuator is anchored to the second surface and has at least a portion of a pressing pad extending through the orifice in the first surface. An inner side of the second surface comprises a contoured portion within the cavity, the contoured portion having a first end positioned toward the second endface and a second end positioned toward the first endface, wherein the contoured portion has a maximum height at or near the first end, and a minimum height at a position between the first end and the second end.

Abstract: A tool which is relatively simple in design, is easy to manufacture and assemble, and which is capable of dispensing precise amounts of the fluid contents of a deformable tube until the contents have been substantially completely dispensed is provided. The tool includes interlocking casing halves and a rigid actuator jaw which is adapted to be pressed against the tube to dispense the contents of the tube.

Abstract: In general, techniques are described for dynamic port configuration with an interconnection system (IS) to streamline a process for port ordering and reduce port configuration and interconnection services provisioning times. In one example, an IS includes at least one interconnection facility and a programmable network platform (PNP), the at least one interconnection facility including: a network switch fabric having at least one network device and ports; and a customer cage for a customer of an IS provider for the IS, wherein the PNP is configured to, in response to a port verification request initiated by the customer to verify a port of the ports that is cross-connected to a customer network in the customer cage to provide connectivity with the network switch fabric: obtain an indication of a port configuration for the port; and output the indication of the port configuration for the port for display to the customer.

Abstract: In general, techniques are described for dynamically programming a cloud-based service exchange to enable connections from an enterprise buyer in one metropolitan area to connect to a cloud exchange in another metropolitan area. For example, a network data center includes a programmable network platform to receive an indication of a network service provider (NSP) configured to transport traffic to a customer in a second metropolitan area; provision a virtual circuit from a customer-facing port of a cloud-based services exchange point of the second metropolitan area to the NSP; receive a service request that specifies one or more cloud services provided by one or more cloud service provider networks of the first metropolitan area operated by the respective cloud service providers; and configure access to the one or more cloud services provided by one or more cloud service provider networks via the virtual circuit.

Abstract: A device for dispensing a material having: a first surface with an orifice; a second surface opposite the first surface; a first endface comprising an annular opening; a second endface opposite the first endface; a cavity defined by the above. An actuator is anchored to the second surface and has at least a portion of a pressing pad extending through the orifice in the first surface. An inner side of the second surface comprises a contoured portion within the cavity, the contoured portion having a first end positioned toward the second endface and a second end positioned toward the first endface, wherein the contoured portion has a maximum height at or near the first end, and a minimum height at a position between the first end and the second end.

Abstract: A device for augmented reality model alignment is disclosed. The device may receive user input that identifies a machine, identify an augmented reality model associated with the machine, and display a representation of the machine with multiple icons that indicate multiple positions for a target marker. The device may detect a user selection of an icon of the multiple icons and may determine, based on the selected icon, an orientation for superimposition of the augmented reality model. The device may detect the target marker in an image captured by an image capture component of the device and may superimpose the augmented reality model on the image using the orientation.