Abstract: Systems, methods, and apparatus are provided for external control testing of an assay system.

Abstract: A lift device includes a base assembly, a lift assembly, a platform assembly, and a control system. The lift assembly is coupled with the base assembly. The lift assembly is configured to raise or lower. The platform assembly is coupled with an end of the lift assembly. The platform assembly is configured to be raised and lowered by the lift assembly. The control system includes processing circuitry. The processing circuitry is configured to receive a user input,. The user input includes a request to move the platform assembly in a direction along a wall surface relative to the wall surface while maintaining a constant distance from the wall surface and orientation relative to the wall surface. The processing circuitry is configured to operate at least the lift assembly to move the platform assembly in the direction along the wall surface.

Abstract: A track tensioning system includes a pair of dual accumulators. Each of the dual accumulators are configured to adjust a tension of a belt of a corresponding track assembly. The track tensioning system is configured to provide two-stage control of the tension of the belt.

Abstract: A military vehicle includes a chassis, a cargo body, and an energy storage system. The chassis includes a passenger capsule having a rear wall. The cargo body is positioned behind the passenger capsule and supported by the chassis. The energy storage system includes a battery housing defining a lower end and an upper end, a battery disposed within the battery housing, a bracket coupled to the battery housing at or proximate the upper end thereof, a lower support supporting the lower end of the battery housing where the lower support is supported by the chassis, and an upper connector extending between the bracket and the rear wall.

Abstract: A valve assembly includes a valve body defining an inner volume, a flow controller positioned within the inner volume, a plug positioned within the inner volume, and a biasing element. The plug is spaced from the flow controller such that an intermediate chamber is defined between the plug and the flow controller. The biasing element is positioned in the intermediate chamber between the plug and the flow controller. The plug is repositionable within the inner volume and, as the plug moves within the inner volume, the plug interacts with the biasing element such that the biasing element provides a biasing force to the flow controller. The flow controller defines a passage having a varying size profile that varies in size based on the biasing force.

Abstract: A battery pack for a lift device includes a housing, battery cells, a resistor, a conductive element, and a member. The resistor is electrically coupled with a positive terminal of the battery cells. The conductive element is configured to transition between an open state in which a discharge path is not defined between the positive terminal of the battery cells and a negative terminal or a ground, and a closed state in which the discharge path is defined. The member is disposed at the opening and accessible from an exterior of the housing. The member is manually transitionable by a technician between a first state in which the conductive element is in the open state, and a second state in which the conductive element is driven into the closed state such that the battery cells discharge remaining electrical energy via the discharge path.

Abstract: Systems and methods for adjusting a weight, center of gravity, and balance point of a firearm are disclosed. The systems and methods include a handguard, a weight configured to be attached to the handguard, and a firearm accessory configured to be adjustably secured about the weight.

Abstract: A vehicle includes an electric motor, a fuel cell, and a fuel cell thermal management system. A control system of the vehicle is configured to operate the fuel cell and the fuel cell thermal management system according to different modes. The modes include an acoustic signature mode in which an acoustic signature of the vehicle is reduced, a thermal signature mode in which a thermal signature of the vehicle is reduced, an acoustic and thermal signature mode in which both the acoustic signature and the thermal signature of the vehicle are reduced, a mission mode in which the vehicle is a node of a mesh network of other vehicles, and an optimized efficiency mode in which the fuel cell and the fuel cell thermal management system are controlled based on ambient conditions.

Abstract: A vehicle is operable in three modes of operation. The vehicle includes a first electromagnetic device, a second electromagnetic device electrically coupled to the first electromagnetic device, and an engine coupled to the first electromagnetic device and configured to drive the first electromagnetic device to provide electrical energy. In each of the three modes of operation, whenever the engine drives the first electromagnetic device to provide the electrical energy, the first electromagnetic device operates without providing the electrical energy to an energy storage device.

Abstract: A tracked vehicle includes a drive system and a controller. The drive system is configured to drive a track of the tracked vehicle. The drive system includes an electric motor, a gearbox, and a first positional sensor. The gearbox includes a first planetary gearset, a second planetary gearset, a first clutch, and a second clutch. The first positional sensor is configured to measure translation of a piston of the first clutch and the second positional sensor is configured to measure translation of a piston of the second clutch. The controller is configured to use the measured translation of the piston of the first clutch and the measured translation of the piston of the second clutch to operate the electric motor and the gearbox.

Abstract: A military vehicle including an engine coupled to the chassis for providing mechanical power to the military vehicle, a motor/generator coupled to the engine, and an energy storage system including a battery electrically coupled to the motor/generator. The military vehicle is operable in a silent mobility mode with the engine inactive and the energy storage system providing power to the motor/generator to operate the military vehicle. The motor/generator and the battery are sized such that electrical power generation through engine drive of the motor/generator is greater than the power depletion through operation of the military vehicle in the silent mobility mode. The motor/generator can charge the energy storage system while the military vehicle is driving or stationary.

Abstract: A driveline including a motor/generator configured to receive power from an engine and output power to a tractive element, an accessory drive configured to receive power from the engine and output power to an accessory, and an energy storage system including a battery, the energy storage system electrically coupled to the motor/generator and the accessory drive. The driveline is operable in a charge mode with the motor/generator and the accessory drive providing electrical power to the energy storage system. The driveline is operable in a silent mobility mode with the energy storage system providing electrical power to the motor/generator and the accessory drive to operate the military vehicle.

Abstract: Systems, methods, and apparatuses are provided for self-contained nucleic acid preparation, amplification, and analysis.

Abstract: A power conversion unit can include a housing, a first converter module, and a second converter module. The housing can define a shape of the power conversion unit, provide a first slot to receive the first converter module, provide a second slot to receive the second converter module. The first converter module can electrically couple with a first power source, and the first converter module can establish a first bi-directional flow of electrical power between a voltage bus of the power conversion unit and the first power source. The second converter module can electrically couple with a second power source, and establish a second bi-directional flow of electrical power between the voltage bus of the power conversion unit and the second power source.

Abstract: An electric drive train for a military vehicle includes an electric motor, and a gearbox. The gearbox is driven by the electric motor and drives a tractive element. The gearbox includes input and output shafts, a pair of clutches, and a pair of planetary gearsets. The input shaft receives torque from the electric motor. The output shaft outputs torque to the tractive element. The first clutch is operable to engage an element of the first planetary gearset and the second clutch is operable to engage an element of the second planetary gearset. The first clutch and the second clutch are operable to engage the element of the first planetary gearset and the second planetary gearset to transition the electric drive train between a park mode, a neutral mode, a first driving mode, and a second driving mode, and to provide braking for the electric drive train.

Abstract: A military vehicle includes an electric motor, a gearbox, a hydraulic system, and a control system. The gearbox is driven by the electric motor and drives a tractive element. The gearbox includes a first planetary gearset, a second planetary gearset, a first brake, and a second brake. Processing circuitry is configured to obtain one or more control inputs including a brake request or a mode selection. The processing circuitry operates the hydraulic system of the military vehicle to transition the gearbox between a park mode, a neutral mode, a first driving mode, and a second driving mode according to the mode selection. The processing circuitry operates the hydraulic system to provide variable pressurization to a chamber corresponding to one of the first brake or the second brake in order to perform the brake request while operating according to the first driving mode or the second driving mode.

Abstract: A military vehicle includes a passenger capsule including a floor and sidewalls, a door mounted to the passenger capsule, and an battery armor assembly coupled to an exterior of the passenger capsule or an exterior of the door, wherein the battery armor assembly includes a battery unit having a battery that is removably coupled to the exterior of the passenger capsule or the exterior of the door.