Abstract: A method for the recovery of vanadium from a vanadium containing feed stream, the method comprising the steps of: subjecting the vanadium feed stream to a leach step, the leach step comprising contacting the vanadium feed stream with an alkaline carbonate leach solution to form a leach slurry comprising a pregnant leach solution containing vanadium and a solid residue; passing the leach slurry to a solid/liquid separation step to produce a pregnant leach solution containing vanadium; and recovering a vanadium product from the pregnant leach solution.

Abstract: A protection system for a battery system includes a battery control module configured to selectively open at least one contactor to isolate the battery system from a load in response to a sensed current being greater than a first threshold and within a first current range, at least one fuse connected between first and second terminals of the battery system and configured to open to isolate the battery system from the load in response to the sensed current being greater than a second threshold and within a second current range that is greater than and offset from the first current range, and an auxiliary protection module configured to selectively form a short circuit between first and second terminals in response to the sensed current being greater than the first threshold, less than the second threshold, and within a coverage gap region between the first and second current ranges.

Abstract: A controllable main breaker includes a main breaker sized to fit within an existing panel slot of an electrical panel. The main breaker comprises a trigger to open the main breaker in response to a thermal fault or overcurrent event. The controllable main breaker further includes an auxiliary shell sized to fit within at least one adjacent breaker slot. The auxiliary shell includes a controllable actuator that mechanically opens the main breaker.

Abstract: A processor of a transaction server may receive an authorization request prior to the authorization request being processed by a payment authorization system. The processor may identify at least one alternative to the authorization request being processed by the payment authorization system. The processor may receive a command to process the authorization request by the payment authorization system or to apply the at least one alternative. The processor may process the authorization request according to the command.

Abstract: A new, stable trimeric TNF? structure is disclosed with distorted symmetry which can bind to the TNFR1 receptor to attenuate signalling therefrom, which can be used in the treatment and/or prevention of diseases associated with the soluble TNF?/TNFR1 interaction. Membrane-bound TNF? is not affected in its ability to signal through TNFR2, and thus the new structure of TNF? may be used in therapies which do not significantly raise the risk of infection or malignancy.

Abstract: A power control system for a battery system of a vehicle includes a first contactor, a second contactor, N fuses and N vehicle loads. An active sacrificial protection device includes a third contactor and a first fuse. The active sacrificial protection device is connected to a positive or negative terminal of the battery system. A current sensor is configured to sense a measured load current flowing through one of the first contactor and the second contactor. A battery management module is configured to selectively close the third contactor to reduce current flowing through one of the first contactor or the second contactor and selectively open the one of the first contactor or the second contactor after closing the third contactor.

Abstract: A wind estimation system for an aircraft includes a first sensor configured to sense a first position associated with an aircraft control component in a wind condition, a second sensor configured to sense a first configuration associated with a rotor system of the aircraft in the wind condition, and at least one controller in communication with at least one of the first sensor or the second sensor. The at least one controller is configured to determine a tip-path-plane angle of the aircraft based on the first position and the first configuration, and determine at least one of a current wind speed or current wind direction based on the tip-path-plane angle.

Abstract: An energy storage assembly includes a vertical stack of substantially planar modules. Each module comprises a plurality of energy storage components and a thermally conductive shell comprising a shell top, a shell bottom, shell sides, a shell front, and a shell rear.

Abstract: An energy storage system includes an energy storage component. It further includes heat generating electronics. It further includes a fluid circulator that transfers fluid between the energy storage component and the heat generating electronics. The circulator is controlled to alternatively transfer fluid from the battery to the heat generating electronics or from the heat generating electronics to the energy storage component based at least in part on a thermal state of the energy storage system.

Abstract: A burner gas supply apparatus for increasing flame turbulence, the apparatus comprising a conduit having a characteristic width, W, defined by an inner surface having a circumferential direction and an axial direction, the axial direction terminating in a nozzle defining a nozzle exit plane and having a characteristic dimension, d, where d<=W; and three bluff bodies each with a characteristic dimension, Dbb-i, projecting a length, Li into the conduit from the inner surface, and an axial spacing Xi between adjacent bluff bodies (between the downstream bluff body and the nozzle exit plane in the case of X1) wherein 0.5<=Li/W<=1 and wherein Xi/Dbb-i<=30.

Abstract: A maintenance notification for a UAV may be sent to a service provider. The service provider may identify the UAV, such as to access a profile associated with the UAV that includes at least hardware and software configurations for the UAV. The service provider may generate a customized maintenance decision tree to organize tasks to be performed for the specific UAV to determine a maintenance action to remedy a fault or problem associated with the maintenance notification. The decision tree may be formed using history of the UAV and information about other UAVs to construct the decision tree tailored to the specific UAV under analysis. At least some operations included in the decision tree may be automated. Traversal of the decision tree may lead to updates of the UAV of hardware, software, or both.

Abstract: The disclosure is directed to a system including a single source of electric power for work site operations. In regard to hydraulic fracturing stimulation of a wellbore, the system includes a single source of electric power for starting one or more frac pumps comprising engines with electric starters.

Abstract: A combustor for a gas turbine engine having a compressor upstream of the combustor and a turbine downstream of the combustor. The combustor also includes a combustor chamber, an oxy-fuel pilot burner (104) centrally positioned at an end of the combustor chamber, and an air-fuel premix burner configured to at least partially premix air and fuel. The air-fuel premix burner surrounds the oxy-fuel pilot burner (104) in an annular configuration.

Abstract: A heating, ventilation, and air-conditioning (“HVAC”) system. The HVAC system may include a refrigeration circuit and a blower system. The refrigeration circuit may include a compressor, an outdoor heat exchanger, an expansion device, and an indoor heat exchanger. The blower system may include a first direct-drive blower and a second direct-drive blower. The first direct-drive blower may flow air over the indoor heat exchanger. The second direct-drive blower may flow air over the indoor heat exchanger and the second direct-drive blower may operable and positionable relative to the indoor heat exchanger independently from the first direct-drive blower.

Abstract: Provided herein are compositions, methods, uses, and articles of manufacture for iodine treatment on mucosal membranes, and treatment of respiratory pathogens in this way—e.g., by inhalation and combined with the evaporation of steam. In certain embodiments, iodine treatment encompasses administration of compounds that release molecular iodine and/or physiologically active iodine-containing compounds.

Abstract: A coupling system for coupling a curved object to a central shaft, the curved object includes an inner surface facing the central shaft and an outer surface. The system includes a coupling member for coupling the curved object to the central shaft; at least one pocket integrally formed on a curved surface of the curved object and defined as a depression with respect to at least one of the inner and outer surfaces. The pocket includes: a flat portion having an aperture for holding the coupling member; and a flange portion which merges continuously from the flat portion to the curved object and is shaped such that the flat portion is disposed perpendicularly to the coupling member; a fastening member for fastening the coupling member to the flat portion. The thickness of the flat portion and flange portion is the thickness of the curved object.

Abstract: A system and method for recovering application authentication with an application server by using an exponential back-off procedure via push notifications is discussed herein. The system allows for authentication of a user account after network outages or service disruptions without traffic overload during recovery. A user equipment (UE) receives a failed registration notification after a failed registration attempt of the user account with an application server associated with the application. A push notification includes an instruction that causes the application to switch from an inactive state to a temporary active state. The push notification is sent from a push notification service in response to a push request from a notification server based on a recovery request from the UE due to the failed registration notification. While the application is in the temporary active state, the instruction further causes the application to request registration with the application server.