Abstract: Provided herein are various enhancements for radio frequency (RF) horn antenna systems and arrays. An example apparatus includes a horn antenna array formed in a single workpiece of material comprising horn antenna elements with integrated feed networks. Each of the integrated feed networks comprise a waveguide interface flange having a port, and a filter element having a serpentine cavity coupled to the port that is at least partially formed by a base section, where a separation interface is established between the base section and an attachable cap that forms a remainder of the serpentine cavity. Each of the integrated feed networks also comprise a polarizer element having a waveguide cavity that couples between the serpentine cavity of the filter element and an associated horn antenna element that forms a signal aperture.

Abstract: A device includes a first handle formed at least in part by a first housing and a second housing, a second handle formed at least in part by a third housing and a fourth housing, and a rotatable assembly at least partially disposed between the first handle and the second handle. The rotatable assembly is rotatable at least partially about the first housing and the second housing. The rotatable assembly includes shafts, first rotatable elements disposed about a first portion of the shafts, and second rotatable elements disposed about a second portion of the shafts. The first portion of the shafts and the second portion of the shafts are alternatingly disposed around the rotatable assembly.

Abstract: Provided herein are various enhancements for waveguide structures used in radio frequency feed components. In one example, an apparatus includes a septum polarizer having first feed ports and a common port, a high-pass filter coupled to the common port of the septum polarizer, and a multi-port orthomode transducer (OMT) coupled to the high-pass filter and providing an antenna port. The apparatus also includes hybrid couplers coupled to low-pass filters fed from the multi-port OMT, and magic tee elements cross-coupled to the hybrid couplers and providing second feed ports.

Abstract: A set of lift controls may be configured to determine the load on the motor (112) by a vehicle of an unknown weight during operation at a standard lift speed and use such information to determine a potential speed that the motor may raise the vehicle at while staying within safe operational levels for the motor. One or more of a magnitude of electrical power drawn, a pressure generating by a hydraulic lifting, or a sensed vehicle weight may be used to provide an indication of load on the motor and/or a higher potential speed.

Abstract: A portal gear box assembly for an off-road vehicle that includes a housing that defines an input gear subassembly indent, an output gear subassembly indent, and one or more idler-gear subassembly indents. The assembly includes an input gear subassembly positioned in the input gear subassembly indent with an input gear connected to an input shaft, an output gear subassembly positioned in the output gear subassembly indent with an output gear connected to an output shaft, and an idler-gear subassembly positioned within the one or more idler-gear subassembly indents to connect the input and output gears with a removable adaptor that is selectively positionable in more than one configuration to alter the transmission ratio between the input and output gears.

Abstract: A computer system identifies an event from a management system log associated with a first container host. The presence of the event in the management system log is indicative that the first container host identified a fatal system error at the first container host. Based on the event, the computer system determines that a first instance of a container that is provisioned at the first container host has been isolated to the first container host. Based on the first instance of the container having been isolated to the first container host, the computer system instructs a second container host to provision a second instance of the container at the second container host.

Abstract: A mold handling manufacturing line, which includes at least a first subline and a second subline, is provided. The mold handling manufacturing line moves at least one mold car that supports a cast mold, which forms a cast part, the mold handling manufacturing line comprising at least a first subline and a second subline and a first transfer station. The second subline is located substantially parallel with and spaced apart from the first subline. The first transfer station in communication with the first subline and the second subline. The first transfer station includes a transfer cart configured to receive the at least one mold car. The first transfer station includes a servo belt driven line composed of a servo motor rotates one or more drive pulleys, via a belt. which is coupled to the transfer cart.

Abstract: Provided herein are various enhanced assemblies and techniques for forming high-power radio frequency coaxial splitters. In one example, an apparatus includes an input coaxial port having a center conductor coupled to a first longitudinal end of a generally cylindrical conductor member formed along a longitudinal axis within a housing forming a cavity about the conductor member. Output coaxial ports are included having center conductors coupled to generally square output branches arrayed at a second longitudinal end about the conductor member in a plane perpendicular to the longitudinal axis. A thermal shunt is included comprising a thermal connection between the housing and a recess formed into the conductor member along the longitudinal axis at the second longitudinal end.

Abstract: In-place recovery of fatal system errors at virtualization hosts. A device identifies an occurrence of a fatal system error in the first instance of a host operating system (OS) executing in a computer system. The device determines to perform an in-place recovery for the fatal system error. The device performs the in-place recovery, including pausing the execution of a virtual machine (VM) by the first instance of the host OS, preserving a state of the VM within system memory of the computer system, and resuming the execution of the VM by a second instance of the host OS executing in the computer system based on the state of the VM that is preserved within the system memory of the computer system.

Abstract: Radio frequency (RF) polarizer feeds and associated waveguide structures having twist features are discussed herein. In one example, a first waveguide segment spans a longitudinal axis between a feed port and a twist port and includes two stacked rounded rectangular elements skewed in minor axis alignment with respect to each other and having major axes perpendicular to the longitudinal axis. A second waveguide segment spans the longitudinal axis between the twist port and a polarizer port and is coupled to the first waveguide segment at the twist port. The second waveguide segment includes first ridge elements that span longitudinally from the twist port on first opposing walls of the second waveguide segment, and second ridge elements that span longitudinally from the twist port on second opposing walls of the second waveguide segment.

Abstract: Training programs (e.g., for training a user to use a company's products) may be flexibly benchmarked by first identifying user interactions with one or more of the training programs and converting the user interactions into user activity data objects associated with user identifiers. The user activity data may then be made anonymous by removing the user identifiers from the data before examining the data. The anonymized user activity data may then be aggregated with respect to each of the training programs. A benchmark model for evaluating the training programs may then be determined based on a flexible benchmark schema of selectable benchmark metrics for evaluating aspects of the training programs. Benchmarks may then be calculated for each of the training programs based on the aggregated user activity data and the benchmark model. The benchmarks may then be displayed and/or analyzed to generate insights or suggestions for improving the training programs.

Abstract: A retractable tow reel assembly for an off-road vehicle, the assembly including a bracket having a pair of opposing uprights and mountable to an off-road vehicle, a reel adapted to be held by the bracket when mounted to the vehicle and effective for holding a tow rope, the reel including a shaft and a pair of opposing drum ends having a diameter greater than the diameter of the connecting shaft, and a tow rope having an eye end and a free end, where the eye end is threaded around the shaft, where the shaft has a first end and a second end, and where the first end of the shaft may be released from the first drum end and exposed to facilitate threading of the rope eye over the shaft without releasing the second end of the shaft from the second drum end.

Abstract: A retractable tow reel assembly for an off-road vehicle, the assembly including a bracket having a pair of opposing uprights and mountable to an off-road vehicle, a reel adapted to be held by the bracket when mounted to the vehicle and effective for holding a tow rope, the reel including a shaft and a pair of opposing drum ends having a diameter greater than the diameter of the connecting shaft, and a tow rope having an eye end and a free end, where the eye end is threaded around the shaft, where the shaft has a first end and a second end, and where the first end of the shaft may be released from the first drum end and exposed to facilitate threading of the rope eye over the shaft without releasing the second end of the shaft from the second drum end.

Abstract: Methods, systems, and computer program products for direct assignment of physical devices to confidential virtual machines (VMs). At a first guest privilege context of a guest partition, a direct assignment of a physical device associated with a host computer system to the guest partition is identified. The guest partition includes the first guest privilege context and a second guest privilege context, which is restricted from accessing memory associated with the first guest privilege context. The guest partition corresponds to a confidential VM, such that a memory region associated with the guest partition is inaccessible to a host operating system. It is determined, based on a policy, that the physical device is allowed to be directly assigned to the guest partition. Communication between the physical device and the second guest privilege context is permitted, such as by exposing the physical device on a virtual bus and/or forwarding an interrupt.

Abstract: A vehicle arm adapter that includes a base member, a platform assembly coupled to the base member, and an adjustable frame retaining assembly coupled with the platform assembly. The base member can selectively couple with a lifting arm of a vehicle lift. The platform assembly includes a vehicle engagement surface. The platform assembly can engage and lift a vehicle in coordination with the vehicle lift. The adjustable frame retaining assembly includes a first retractable assembly and a second retractable assembly that are both capable of actuating between an extend configuration and a retracted configuration. The first and second frame retaining assemblies can cooperate to contain a first subset of vehicle frames in the extended configuration. The first and second frame retaining assemblies are prevented from retaining a second subset of vehicle frames in the retracted configuration.

Abstract: A portal gear box assembly for an off-road vehicle that includes a housing that defines an input gear subassembly indent, an output gear subassembly indent, and one or more idler-gear subassembly indents. The assembly includes an input gear subassembly positioned in the input gear subassembly indent with an input gear connected to an input shaft, an output gear subassembly positioned in the output gear subassembly indent with an output gear connected to an output shaft, and an idler-gear subassembly positioned within the one or more idler-gear subassembly indents to connect the input and output gears with a removable adaptor that is selectively positionable in more than one configuration to alter the transmission ratio between the input and output gears.

Abstract: A septum orthomode transducer polarizer (SPOL) is presented comprising sidewall ridges which increase bandwidth in the presence of draft angles for injection molding manufacturing techniques. A SPOL with sidewall ridges is able to accommodate draft angles for injection molding while creating greater modal separation within the SPOL and increasing the resultant bandwidth. A horn aperture may be included with the SPOL, and the combined structure may be injection molded as a single part to realize significant cost and mass reductions.

Abstract: A fuel unit assembly-lifting adapter is configured to couple with a vehicle lift in order to engage, raise, and lower a fuel unit assembly. The fuel unit assembly-lifting adapter includes an elongated fuel unit assembly-engaging portion terminating into a first end and a second end and a lift-engaging portion comprising a first member extending from the first end of the fuel unit assembly-engaging portion, and a second member extending from the second end of the fuel unit assembly-engaging portion, wherein the first member and the second member are configured to detachably engage a vehicle lift such that the fuel unit assembly-engaging portion may raise and lower the fuel unit assembly in response to movement of the vehicle lift.

Abstract: A portal gear box assembly effective to lift and change the gear ratio of a wheel of an off-road vehicle includes a housing, an input gear sub-assembly, an output gear sub-assembly, and an idler gear sub-assembly effective for linking the input gear to the output gear. The input gear sub-assembly includes an input gear, the output gear sub-assembly includes an output gear, and the idler gear sub-assembly includes at least one idler gear and at least one removable adaptor effective for holding the idler gear in either a first position or a second position different from the first position. The sub-assemblies may also include bearings to facilitate movement of the gears.

Abstract: A feed network is provided that includes a transmit section, a body section coupled to the transmit section, and a receive section coupled to the body section. The transmit section and the body section form a transmitter unit coupled to a first section of a core waveguide, wherein the first section of the core waveguide is a square waveguide. The body section and the receive section form a receiver unit coupled to a second section of the core waveguide, wherein the second section of the core waveguide is a circular waveguide.