Abstract: Aspects of an optical element are provided herein for use in an optical assembly. The optical element may include an optical substrate, an optical component (e.g., a lens), and a plurality of alignment features. The optical component is configured to receive light and is included in a middle region of the optical substrate. The alignment features are included in a periphery region on a surface of the optical substrate. The alignment features are configured to contact a corresponding plurality of alignment features included in another optical element of the optical assembly to provide a kinematic coupling between the optical element and the other optical element for aligning the optical components.

Abstract: An imaging system comprises two cameras and a processor. A first camera comprises a first grid of pixels configured to detect light in a broadband channel and a plurality of clusters of color filters sparsely arranged over the first grid of pixels. Each color filter passes light in a color channel to the grid of pixels. A second camera comprises a second grid of pixels configured to detect light in a broadband channel. The processor is configured to generate an aggregate image by combining a first image captured by the first camera and a second image captured by the second camera. The processor is also configured to add color values to the aggregate image based on color data captured by the first camera with the clusters of color filters. Additionally, the processor is configured to present the aggregate image with added color values on an electronic display.

Abstract: A semiconductor structure includes a doped semiconductor material portion, a metal-semiconductor alloy portion contacting the doped semiconductor material portion, a device contact via structure in direct contact with the metal-semiconductor alloy portion, and at least one dielectric material layer laterally surrounding the device contact via structure. The device contact via structure includes a barrier stack and a conductive fill material portion. The barrier stack includes at least two metal nitride layers and at least one nitrogen-containing material layer containing nitrogen and an element selected from silicon or boron.

Abstract: A bladed chassis system facilitates installation of the bladed chassis system and replacement of the blades at the chassis. For example, a front panel of the blade can be opened either upwardly or downwardly at the discretion of the user. Blades can be inserted and removed from the front and/or the rear of the bladed chassis system at the discretion of the user. Cables can be routed to the rear of the chassis system from either of two sides at the discretion of the user. The blades carried by the chassis have fiber management trays that can be rotationally oriented in any desired rotational position at the discretion of the user.

Abstract: A method comprising synthesizing a substituted cyclopentenone compound via reaction of a substituted cycloalkyl acrylate ester in the presence of phosphorous pentoxide/methanesulfonic acid reagent to make the substituted cyclopentenone compound.

Abstract: A fuel cell system includes a stack of proton exchange membrane (PEM) fuel cells defining a body, the body including a coolant inlet and coolant outlet, a cathode inlet and cathode outlet corresponding to a cathode, an anode inlet and an anode outlet corresponding to an anode. The fuel cell system also includes a cathode humidifier fluidly connected to the cathode inlet to provide a humidified inlet stream to the cathode inlet, an oxygen sensor positioned upstream of the cathode inlet and downstream of the cathode humidifier, and configured to measure oxygen content of the humidified inlet stream, and a controller connected to the cathode humidifier and the oxygen sensor and configured to operate the cathode humidifier based on the oxygen content of the humidified inlet stream.

Abstract: A vehicle comprises: a plurality of seating assemblies, each seating assembly including an exterior surface, an interior beneath the exterior surface, a pressured supply of liquid sanitizer disposed within the interior, and at least one valve in fluid communication with the pressurized supply of liquid sanitizer that opens to allow liquid sanitizer to be dispensed onto the exterior surface. Each of the at least one valve are selectively positionable to and from an open position where the liquid sanitizer flows through the valve to allow liquid sanitizer to be dispensed onto the exterior surface and a closed position where the liquid sanitizer cannot flow through the valve. A controller, configured to receive instructions from a user interface, communicates with each of the at least one valve to cause any particular valve to move to and from the open position and the closed position.

Abstract: A panel array antenna comprises an input layer including a waveguide network coupling an input feed on a first side thereof to a plurality of primary coupling cavities on a second side thereof, and an output layer on the second side of the input layer. The output layer includes an array of horn radiators, respective horn radiator inlet ports in communication with the horn radiators, and respective slot-shaped output ports in communication with the respective horn radiator inlet ports to couple the horn radiators to the primary coupling cavities. The horn radiators, the respective horn radiator inlet ports, and the respective slot-shaped output ports are integrated in a monolithic layer, which is configured to provide respective output signals from the horn radiators having a polarization orientation that is rotated by a desired polarization rotation angle relative to respective input signals received at the respective slot-shaped output ports coupled thereto.

Abstract: Discovery of communication platform features or exposure of such features to the user may include generating embeddings for a variety of types of communication platform content and communications. These embeddings may be used to characterize and compare various communication platform features and ultimately expose these features to a user when the user may not have otherwise encountered them. Embeddings may be generated to characterize a user's interactions with a communication platform and/or characterize a channel and the embeddings may be used to expose methods of communicating with the user and/or over the channel.

Abstract: Some embodiments are directed to a battery. The battery can include a case having a hollow accommodation cavity formed therein. The case having a material that includes a blend comprising at least one of polysulfone, acrylonitrile butadiene styrene (ABS), Nylon, polyphenylene oxide (PPO), styrene-acrylonitrile (SAN), and polypropylene. The material of the case enables removal of thermal energy generated during operation of the battery.

Abstract: A swivel plate assembly is provided that comprises a first swivel plate coupled to a second swivel plate. Each of the first and second swivel plates includes a first portion and a second portion. A channel is defined by the first swivel plate and the second swivel plate. A ball bearing assembly is positioned within the channel. A ball bearing of the ball bearing assembly is positioned substantially flush with the first and second swivel plates.

Abstract: An aircraft electric machine includes an electric stator that surrounds and supports a rotor. A housing defines a sealed chamber enclosing the electric stator and is configured to maintain an absolute pressure of a gas within the chamber as an aircraft with the aircraft electric machine changes altitude.

Abstract: In a flip-chip LED assembly having an array of LEDs formed on the same substrate, different LEDs of the array have different distances to the n-contacts of the assembly. This may cause current crowding as current has to spread from the n-contacts through the substrate to each the farthest LEDs of the LED array, requiring LEDs that are farther away to be driven with a higher voltage in order to receive a desired amount of current. To spread current more evenly through the LED assembly and reduce a voltage difference between the closest and farthest LEDs of the array, a current spreading layer having a conductive material (e.g., a conductive oxide) is formed on a surface of the substrate of the LED assembly. The current spreading layer may be a bulk layer or be patterned to increase light extraction from the LEDs of the array.

Abstract: Methods of powering a radio that is mounted on a tower of a cellular base station are provided in which a direct current (“DC”) power signal is provided to the radio over a power cable and a voltage level of the output of the power supply is adjusted so as to provide a substantially constant voltage at a first end of the power cable that is remote from the power supply. Related cellular base stations and programmable power supplies are also provided.

Abstract: A computer includes a processor and a memory storing instructions executable by the processor to determine, for a host vehicle operating in a first operation mode, a first operation mode transition location based on a time to transition the host vehicle from the first operation mode to a second operation mode, a current speed of the host vehicle, and a distance from the host vehicle to an operation mode transition boundary location, to determine a second operation mode transition location that is a specified distance from the first operation mode transition location, the specified distance based on the current host vehicle speed, to transition from the first operation mode to the second operation mode upon reaching the first operation mode transition location, and to transition from the second operation mode to the first operation mode when the second operation mode transition location is between a current location of the host vehicle and the operation mode transition boundary location.

Abstract: This disclosure relates to a stacked reinforcement assembly for a grille of a motor vehicle. An example vehicle includes a fascia, an active grille shutter assembly including a housing, and a reinforcement assembly connected to the fascia and the housing. The reinforcement assembly includes a first bar at least partially nested within a second bar. An assembly and method are also disclosed.

Abstract: Embodiments described herein disclose methods and systems directed to input mode selection in artificial reality. In some implementations, various input modes enable a user to perform precise interactions with a target object without occluding the target object. Some input modes can include rays that extend along a line that intersects an origin point, a control point, and an interaction point. An interaction model can specify when the system switches between input modes, such as modes based solely on gaze, using long or short ray input, or with direct interaction between the user's hand(s) and objects. These transitions can be performed by evaluating rules that take context factors such as whether a user's hands are in view of the user, what posture the hands are in, whether a target object is selected, and whether a target object is within a threshold distance from the user.

Abstract: A method comprising: associating, by a computing device, at least one first item to a first passenger based on the at least one first item being received in an area of a vehicle; associating, by the computing device, at last one second item to a second passenger based on the at least one second item being received in the area of the vehicle; monitoring, by at least two image capture devices, the area of the vehicle; and determining, by the computing device and based on the first passenger taking the at least one second item from the area, an alert.

Abstract: A feed network for a multi-beam antenna is provided, including a first beam port, a second beam port, a beam-forming network coupled to the beam ports, and a cancellation circuit. The cancellation circuit is coupled to the first beam port and the second beam port before the beam-forming network. The cancellation circuit extracts a portion of a RF signal on the first beam port, adds phase delay, and injects the extracted, delayed signal from the first beam port onto the second beam port, and extracts a portion of a RF signal on the second beam port, adds phase shift, and injects the extracted, delayed signal from the second beam port onto the first beam port. In one example of the invention, the cancellation circuit comprises a first directional coupler on a first beam input path, a transmission line, a second directional coupler on the second beam input path.