Abstract: Methods and systems of PFAS destruction in water containing nitrate. The methods and systems include filtering water containing PFAS and nitrate through a membrane selective for PFAS to obtain a membrane reject containing PFAS and nitrate and a filtrate containing nitrate, forming a treatment solution using the membrane reject including diluting the membrane reject and combining the membrane reject with a photosensitizer, a sulfite salt, and a sufficient amount of base such that the treatment solution has a pH of about 10 or more, and irradiating the treatment solution with UV light in a photoreactor to destroy a portion of the PFAS. Before dilution, a concentration of PFAS in the membrane reject may be between about 3 times and about 20 times greater than before the filtering step. Dilution of the membrane reject may include between about a 3 and about a 20 times dilution.

Abstract: Protective sleeves, kits-of-parts for manufacturing sleeves, and methods for manufacturing sleeves are provided. An exemplary protective sleeve includes an inlet end connector; intermediate linking connectors; and an outlet end connector. The intermediate linking connectors are interconnected in a series from the inlet end connector to the outlet end connector; and the inlet end connector, the intermediate linking connectors, and the outlet end connector comprise fire-resistant material.

Abstract: Systems and methods for removing organic compounds byproducts from a product stream from a pyrolysis reactor and associated systems and methods are disclosed herein. In some embodiments, the system includes a first condenser that is fluidly couplable to the product stream, a coalescer that is fluidly couplable to the product stream downstream from the first condenser along a first flow path, and a second condenser that is fluidly couplable to the product stream downstream from the first condenser along a second flow path. The system also includes a first valve positioned to regulate the flow of the product stream along the first flow path including a second valve positioned to regulate the flow of the product stream along the second flow path.

Abstract: A rocket engine system including a thrust chamber including walls that define an interior surface and a combustion section which is fluidically coupled to an output section. A coolant source containing a coolant. A means of heating the coolant. At least one port configured to apply the coolant to the interior surface to achieve a film cooling of the interior surface and wherein the coolant source is fluidically coupled to the means of heating and the at least one port.

Abstract: A method for capturing trapped powder from a part during an additive manufacturing process, the method comprising defining parameters for a part, the part defining an interior passageway defined by interior sidewalls, defining parameters for a powder removal cap, the powder removal cap comprising a body portion and a thin radial membrane connected to the interior sidewalls of the part, simultaneously creating the part and the powder removal cap via additive manufacturing, wherein the powder removal cap is created within the interior passageway and, upon completion of the creation of the part and the powder removal cap, the powder removal cap traps excess powder within the interior passageway, removing the powder removal cap from the interior passageway by breaking the radial membrane from the interior sidewalls to permit access to the interior passageway, and capturing the excess powder within the interior passageway.

Abstract: A system comprises an intake, a turbine enclosed within an explosion-proof enclosure, an explosion-proof motor enclosed within the explosion-proof enclosure, the explosion-proof motor configured to drive the turbine to create a suction force through the intake to force debris through the intake, a housing configured to contain the intake and the explosion-proof enclosure including the turbine and the explosion-proof motor, a plurality of sensors disposed on the housing and configured to obtain directional data, obtain location data, and debris data, one or more wheels, and a controller configured to control the wheels to move the housing based on at least one of the directional data, the location data, and the debris data.

Abstract: A method and system for composite molding, and the method includes additively manufacturing a mold shell that includes a part forming cavity. The method includes filling at least a portion of the mold shell with a strengthening agent. The method includes hardening the strengthening agent to form a mold, and laying-up a composite material on the part forming cavity. The method includes curing the mold to form a composite part.

Abstract: Systems, media, and methods for automated response to social queries comprising: monitoring queries from users, each query submitted to a vendor via an interactive chat feature of an external electronic communication platform, monitoring human responses to the queries, monitoring subsequent communications conducted via the electronic communication platform until each query is resolved; applying a first machine learning algorithm to the monitored communications to identify a query susceptible to response automation; applying a second machine learning algorithm to the query susceptible to response automation to identify one or more responses likely to resolve the query; and either i) notifying a human to respond to the query susceptible to response automation with the one or more responses likely to resolve the query, or ii) instantiating an autonomous software agent configured to respond to the query susceptible to response automation with the one or more responses likely to resolve the query.

Abstract: Presented are hybrid fixture assemblies with integrated additive manufactured features, methods for making/using such fixtures, and manufacturing systems equipped with such fixtures. A manufacturing fixture assembly includes a fixture support frame formed, at least in part, from a first material, and a fixture support shell formed, at least in part, from a second material distinct from the first material. The support frame, which seats on/mounts to a work surface, includes a skeletal substructure with multiple male connectors projecting therefrom. The skeletal substructure contains multiple first frame walls that are removably intermeshed with multiple second frame walls in a collapsible format. The support shell includes a support surface that holds a workpiece, an interface surface that abuts the skeletal substructure, and multiple female connectors that project from the interface surface.

Abstract: Various systems and methods are provided for a biased cathode assembly of an X-ray tube with improved thermal management and a method of manufacturing same. In one example, a cathode assembly of an X-ray tube comprises an emitter assembly including an emitter coupled to an emitter support structure, and an electrode assembly including an electrode stack and a plurality of bias electrodes. The emitter assembly including a plurality of independent components that are coupled together. The electrode assembly including a plurality of independent components that are coupled together, and the emitter assembly being coupled to the electrode assembly.

Abstract: Systems and methods are provided for building a product by additive manufacturing and creating hollow volumes without including build supports in the hollow volume for the layers above the hollow volume. An additive manufacturing cell includes a material handling device, a printer a material delivery system and an energy source to feed the sheets, print on the sheets, apply a powder on the printed sheets, build a hollow volume into the sheets and consolidate the sheets into a product with a contiguous structure.

Abstract: An integral propulsion and auxiliary power generation system includes a rocket engine, a liquid propellant supply system, an auxiliary electrical system, and a transmission system. The liquid propellant supply system is configured to supply a liquid fuel and a liquid oxidizer to the rocket engine. The liquid propellant supply system includes a gas generator configured to burn a mixture of the liquid fuel and the liquid oxidizer to generate a combustion gas stream, and a gas turbine configured to convert the kinetic energy of the combustion gas stream into mechanical energy. The auxiliary electrical system includes a power generator configured to convert mechanical energy into electrical energy and an electric load device electrically coupled to the power generator. The transmission system is configured to mechanically couple the gas turbine and the power generator to selectively transfer mechanical energy between the gas turbine and the power generator.

Abstract: A container lid is provided herein having structurally reinforcing ribs therein. The ribs increase the strength of the lid across a central region thereof. Specifically, the lid can have an outer perimeter and the ribs can be spaced inwardly from the outer perimeter. The inwardly spaced ribs can provide a distinct look for consumer differentiation. Additionally, the ribs can be arcuate so that they generally follow a curvature of the outer perimeter of the lid. As such, a label region within the lid central region is preserved, while the lid is still strengthened by the ribs.

Abstract: A tunneling device includes a body assembly, an expander coupled to the body assembly and extending along a longitudinal axis, and a tip coupled to the expander. The expander is disposed between a force transmitter and the tip. The expander is expandable in a direction perpendicular to the longitudinal axis between a first configuration having a first width measured perpendicular to the longitudinal axis and a second configuration having a second width measured perpendicular to the longitudinal axis. The tip has a width measured perpendicular to the longitudinal axis. The first width of the expander is equal to or less than the width of the tip. The force transmitter is configured to deliver a force through the expander to the tip to move the tip in a direction parallel to the longitudinal axis with the expander in the second configuration.

Abstract: Methods, systems and devices for PFAS destruction including adding a sulfite salt to an aqueous solution containing PFAS and then irradiating the aqueous solution with light at 222 nm. The method may include adding a base to the aqueous solution in an amount sufficient to raise a pH of the aqueous solution including PFAS to about 10 or more. It may also include adding a halide salt such as a bromide salt or an iodine salt, and further adding a carbonate. Greater than 90%, or greater than 99%, of the PFAS in the solution may be destroyed by irradiating the aqueous solution in this way.

Abstract: Methods, systems and devices for photo-electrolyitic PFAS destruction including a photoreactor vessel configured to receive an aqueous solution including PFAS, a UV light source configured to direct UV light onto the aqueous solution in the photoreactor vessel, a cathode within the photoreactor vessel configured to contact the aqueous solution, an anode in an electrolyte solution, an electrical power supply configured to provide a voltage difference between the anode and cathode, and a membrane or ionic bridge between the anode and cathode. The cathode may be a mesh and may have a high surface area construction with an electrochemically active surface area that is greater than the geometric surface area.

Abstract: A precision motion characterization system includes an interferometer configured to emit a laser beam, a first object coupled to a non-moving portion of a linear actuator, and a second object coupled to a moving body of the linear actuator. The first object is configured to reflect a first portion of the laser beam and the second object is configured to reflect a second portion of the laser beam, and a processor is to perform operations including receiving a first image comprising a plurality of first linear interference fringes corresponding to the first portion of the laser beam, determining a first characteristic of the plurality of first linear interference fringes, receiving a second image comprising a plurality of second linear interference fringes corresponding to the second portion of the laser beam, and determining a second characteristic of the plurality of second linear interference fringes.

Abstract: The techniques disclosed herein enable systems to train machine learning models using benign augmentation to enabled resistance various data poisoning attacks. This is achieved by first training a machine learning model using an initial dataset that is trustworthy and originates from a known source. The initial dataset is then modified to include known attack triggers such as syntactic paraphrasing to generate an augmented dataset. The augmented dataset is then used to train a robust machine learning model based using the initially trained machine learning model. The resultant robust machine learning model is then enabled to detect and resist attacks captured by the augmented dataset. The robust machine learning model can be retrained using an untrusted dataset that includes various compromised inputs in conjunction with the augmented dataset. Retraining results in an updated robust machine learning model that can learn and resist various data poisoning attacks on the fly.

Abstract: A system for generating a three-dimensional map of earth's surface and identification of objects is disclosed. The system is configured to receive data, from one or more collectors, comprising three-dimensional data generated from radio frequency signals reflected from earth's surface. The system is further configured to generate an initial version of a baseline three-dimensional map of earth's surface, wherein generating the three-dimensional map includes determining, based on the surface data, a presence of surface features in the earth's surface. Anomalies may be detected based on a comparison of subsequently received data and the baseline, with the system determining that a first anomaly matches an object having an object type. Based on this determination, the system may create a data structure indicating an object type and a geographic location of the matched object, wherein the geographic location data is usable to track the matched object during an analysis period.