Abstract: A control system for a work machine includes an engine, a torque converter, and a lock-up clutch assembly. The lock-up clutch assembly includes a lock-up clutch that can be positioned in an engaged state, for bypassing the torque converter, or a disengaged state. The control system includes a controller configured to determine that the engine is in a cranking state, and cause, based on determining that the engine is in the cranking state, the lock-up clutch to be positioned in the engaged state. The controller is also configured to determine that the lock-up clutch is in the engaged state. The controller is further configured to determine, based on an engine speed, that the engine has started, and cause, based on determining that the engine has started, the lock-up clutch to be positioned in the disengaged state.

Abstract: A method comprises determining an occupancy grid of an area for unmanned aerial vehicle (UAV) navigation. The method further comprises determining, based on the occupancy grid, a candidate flyable airspace through which to permit UAV navigation and determining, by a UAV route planner, a plurality of UAV flight paths through the candidate flyable airspace. The method further comprises determining, based on the occupancy grid, a probability value of the plurality of UAV flight paths intersecting an occupied volume. The method additionally comprises determining whether the probability value of the plurality of UAV flight paths intersecting the occupied volume is below a threshold value and, based on determining that the probability value of the plurality of UAV flight paths intersecting the occupied volume is below the threshold value, validating the candidate flyable airspace for the UAV route planner to plan a route for a UAV to navigate through the area.

Abstract: A lift arm including an attachment assembly and an electrical supply line having a first end and a second end. The first end is fixed in relation to the lift arm and the second end has a connector coupled to a mounting plate. The lift arm includes a first bracket affixed to the lift arm and a second bracket affixed to the attachment assembly. The mounting plate is moveable between and removably securable to the first bracket and the second bracket.

Abstract: A fitting to mount an engine to a wing of an aircraft. The fitting includes a body with a first end and a second end. A first pocket is positioned at the first end with the first pocket sized to receive the forward engine mount fitting. A second pocket is positioned at the second end with the second pocket sized to receive a strut of the wing of the aircraft. The body includes a first section and a second section that are connected together.

Abstract: An amplifier may include multiple stages, with the multiple stages arranged in a fan-out configuration. The fan-out configuration provides multiple amplified signals at multiple amplifier output nodes, which may be coupled to a shared set of downconverters. The shared downconverters may support processing of only a smaller bandwidth than the largest possible bandwidth of an input RF signal input to the amplifier. For example, the downconverters may support a bandwidth matching a smallest bandwidth of a supported RF signal. For example, when the amplifier is intended to support 5G mmWave RF signals and 5G sub-6 GHz RF signals, the downconverters may each individually support a bandwidth of carriers in the 5G sub-6 GHz RF signals but not individually support the entire bandwidth of a possible 5G mmWave RF signal.

Abstract: A waterproofing structure for a railway structure includes a waterproof membrane that is applied over a bed of the railway structure, and a membrane protection layer that is applied over the waterproof membrane. The membrane protection layer is an elastomeric foam that excludes a filler material. The membrane protection layer can be a polyurea foam applied as a single layer.

Abstract: The disclosure provides methods of treating a patient having primary hyperoxaluria or idiopathic hyperoxaluria comprising administering a therapeutically effective amount of compound of the formula and pharmaceutically acceptable salts, solvates, and hydrates thereof to the patient. The variables, e.g. ring A, n, R, R3, R10, X, Y, and Z are defined herein. These compounds act as lactate dehydrogenase inhibitors and are useful inhibiting the conversion of glyoxylate to oxalate. When administered to a patient having a disease or disorder associated with elevated oxalate levels, such as PH type 1, type 2, or type 3 or idiopathic hyperoxaluria the compounds prevent or substantially reduce the amount and buildup of oxalate the patient's kidneys, bladder, urinary tract and other parts of the patient's body.

Abstract: Certain aspects of the present disclosure are directed towards apparatus and techniques for receiver calibration. An example apparatus generally includes: a first receiver having a first oscillating signal generation circuit, an output of the first oscillating signal generation circuit being coupled to an input of a first splitter, wherein the first splitter has multiple outputs; a second receiver having a second oscillating signal generation circuit coupled to an LO input of each of a first plurality of mixers of the second receiver; and signal paths between the multiple outputs of the first splitter and signal inputs of the first plurality of mixers, respectively.

Abstract: Apparatus and methods for tire inflation using an apparatus. The apparatus contains a piston in a housing and a bladder attached at an end of the housing. The apparatus is configured to compress air between a cap, the housing, and piston from the bladder compressing. Air enters into the tire through a valve in the piston. When the bladder decompresses, the piston seals air in the tire, thereby enabling air to pass through the valve in the cap. The apparatus involves a method of maintaining air pressure in a tire. The method includes the apparatus for inflating the tire as the tire rotates over a surface.

Abstract: The invention relates to double-stranded ribonucleic acid (dsRNA) compositions targeting the LDHA gene, as well as methods of inhibiting expression of LDHA, methods of inhibiting LDHA and HAO1, and methods of treating subjects that would benefit from reduction in expression of LDHA, such as subjects having an oxalate pathway-associated disease, disorder, or condition, using such dsRNA compositions.

Abstract: A wet glazing shield gasket includes a support portion and a sweep that extends from the support portion and that terminates at a barrier lip. The sweep is supported for resilient flexure between a neutral position and a flexed position relative to the support portion. Furthermore, the barrier lip is configured to engage a glazing unit for collapsing the sweep onto the support portion as the sweep flexes away from the neutral position and toward the flexed position. The sweep is configured to extend between the frame and the glazing unit and to be a barrier for the seal member as the sweep flexes away from the neutral position and toward the flexed position. The sweep and the support portion are configured to layer over each other and cooperatively occupy a gap between the glazing unit and the frame when in the flexed position.

Abstract: A method includes, during a delivery process of an unmanned aerial vehicle (UAV), receiving, by an image processing system, a depth image captured by a downward-facing stereo camera on the UAV. One or more pixels are within a sample area of the depth image and are associated with corresponding depth values indicative of distances of one or more objects to the downward-facing stereo camera. The method also includes determining, by the image processing system an estimated depth value representative of depth values within the sample area. The method further includes determining that the estimated depth value is below a trigger depth. The method further includes, based at least on determining that the estimated depth value is below the trigger depth, aborting the delivery process of the UAV.

Abstract: A system may monitor usage of a cleaning chemical and indicate when the chemical has expired and needs to be replaced. In some examples, the system includes a reservoir containing the chemical and a sensor associated with the reservoir that can detect user interaction with the chemical in the reservoir. The system may track an amount of time until the chemical in the reservoir is deemed to have expired and provide a user alert indicating expiration of the chemical. The system can control the amount of time remaining until the chemical is deemed to have expired based on the detected addition of the object to the reservoir.

Abstract: This disclosure provides systems, methods, and devices for wireless communications that support multiple subscriber identity module (MSIM) operation. In a first aspect, an apparatus for wireless communications includes an input port for receiving a radio frequency (RF) signal comprising a first carrier corresponding to a first subscriber identity module (SIM) and a second carrier corresponding to a second subscriber identity module (SIM); and a split low noise amplifier (LNA) coupled to the input port and a first output port and a second output port, the split LNA configured to output the RF signal with a first gain as a first amplified RF signal at the first output port and to output the RF signal with a different, second gain as a second amplified RF signal at the second output port. Other aspects and features are also claimed and described.

Abstract: A child's toilet training potty seat positionable on a toilet, the potty seat having a seating surface configured to support a child and a receptacle configured to rotatably attach a splash guard adjacent to a forward portion of the seating surface, the splash guard having a projection engageable in the receptacle and allowing rotation thereof. The projection is eccentrically located on the guard so that guard rotation positions the then-upward end of the guard comparatively higher or lower in relation to the seat. A higher positioned upward end is suitable for use with boys. A lower positioned upward end is suitable for use with girls.

Abstract: Apparatus and methods for tire inflation using an apparatus. The apparatus contains a piston in a housing and a bladder attached at an end of the housing. The apparatus is configured to compress air between a cap, the housing, and piston from the bladder compressing. Air enters into the tire through a valve in the piston. When the bladder decompresses, the piston seals air in the tire, thereby enabling air to pass through the valve in the cap. The apparatus involves a method of maintaining air pressure in a tire. The method includes the apparatus for inflating the tire as the tire rotates over a surface.

Abstract: A ground traversing, electrically driven drone travels along a preprogrammed path that corresponds to pass catcher's travel path during a play, matching the pass catcher's speed and run cuts. The play is wirelessly communicated to the drone by a handheld electronic device located remote of the drone. A target is located on the drone so that a quarterback can throw a football at the target in order to refine the quarterback's timing and accuracy for the play. Sensors onboard the drone track both the football's and quarterback's speed and travel trajectories so that such data can be collected, along with the drone's travel path, and stored onboard the drone's control unit and eventually fed into 3-D reconstruction software for analysis by the quarterback and coaching staff. The target rotates so that the target either faces in a fixed direction or constantly faces the quarterback during execution of drone's maneuvers.

Abstract: A fenestration unit includes a fenestration frame with a first frame member, and a sash including a sash frame to support a glazing unit. The fenestration unit includes a channel defined in one of the first frame member and the sash frame that extends along a first axis. The fenestration unit includes a retainer base associated with the other of the first frame member and the sash frame that extends along the first axis. The fenestration unit includes a retainer removably coupled to the first frame member and the sash frame to removably retain the sash frame on the fenestration frame. The retainer has a first retainer arm, a second retainer arm and a third retainer arm. The third retainer arm is movably coupled to the channel and the first retainer arm is movably coupled to the retainer base.

Abstract: A system and method for efficiently resetting data stored in a memory array are described. In various implementations, an integrated circuit includes a memory for storing data, and a processing unit that generates access requests for the data stored in the memory. When access circuitry of the memory array begins a reset operation, it reduces a power supply voltage level used by memory bit cells in a column of the array to a value less than a threshold voltage of transistors. Therefore, the p-type transistors of the bit cells do not contend with the write driver during a write operation. The access circuitry provides the reset data on the write bit lines, and asserts each of the write word lines of the memory array. To complete the write operation, the access circuitry returns the power supply voltage level from below the threshold voltage level to an operating voltage level.