Abstract: Systems and methods to increase intake air flow to a gas turbine engine of a hydraulic fracturing unit when positioned in an enclosure may include providing an intake expansion assembly to enhance intake air flow to the gas turbine engine. The intake expansion assembly may include an intake expansion wall defining a plurality of intake ports positioned to supply intake air to the gas turbine engine. The intake expansion assembly also may include one or more actuators connected to a main housing of the enclosure and the intake expansion assembly. The one or more actuators may be positioned to cause the intake expansion wall to move relative to the main housing between a first position preventing air flow through the plurality of intake ports and a second position providing air flow through the plurality of intake ports to an interior of the enclosure.

Abstract: Systems and methods for tuning a digital screen to provide high quality data are provided. Methods include determining a target level of participant data quality associated with accurate completion of an online survey, determining a participant screening threshold based on the target level of participant data quality, and adjusting a survey screen based on the participant screening threshold. Methods may achieve high data quality without sacrificing participant diversity. Methods may also include transmitting the survey screen to a computing device associated with a participant, and receiving a response of the participant to the survey screen on the computing device. When the response fails to achieve a predetermined threshold response, methods may include rejecting the participant from the survey.

Abstract: A sanitary cover arrangement for a shopping cart handle includes a tubular base mount configured to be coupled around the shopping cart handle, a tubular outer sleeve configured to be coupled around the tubular base mount, and a plurality of sanitary film layers coupled to the tubular outer sleeve. Each of the sanitary film layers are dispensable from the tubular outer sleeve. A topmost layer of the plurality of sanitary film layers is removable for exposing another layer therebeneath for providing a sanitary surface for gripping the shopping cart handle.

Abstract: Various embodiments relate to an electrochemical cell for removal of materials from water and methods of using the same. A method of removing phosphorus from water includes immersing an electrochemical cell in water including phosphorus to form treated water including a salt that includes the phosphorus. The electrochemical cell includes an anode including Mg, Al, Fe, Zn, or a combination thereof, a cathode including Cu, Ni, Fe, or a combination thereof. The method includes separating the salt including the phosphorus from the treated water, to form separated water having a lower phosphorus concentration than the water including phosphorus.

Abstract: Methods and systems to provide breathing air to underwater divers in response to the divers' respiration at pressures less than 25 psi above atmospheric pressure during inspiration while delivering no or minimal air during exhalation, by controlling the actions of a pump during the time course of breathing. Methods and systems that sense a diver's need for breathing air, determine inhalation demand or exhalation state, and control the operation of a pump which delivers breathing gas to the diver via a tube. An integrated system for the same which incorporates at least an energy source (26), pump (28), air tube (30), breathing aperture (10), sensor (20), and logic processor (24) is disclosed.

Abstract: A water soluble polymer composition includes a water soluble polymer and a sugar and may be used as a support in additive manufacturing processes.

Abstract: The present invention relates generally to first aid articles and more specifically tourniquets suitable for one handed application. One embodiment of the invention is directed to a tourniquet having a base defining first and second ends. A constricting band is attached to and extends from the first end of the base. A handle is engaged with the constricting band. The constricting band engages a self cinching buckle which includes polygonal frame member and a self cinching member engaged with the polygonal frame member. A hook member is attached to the first end of the base and is configured to engage the polygonal frame member.

Abstract: The cover for a drug product bottle with transfer tubes extending therefrom. The cover is made with two parts that close on each other over a screw cap on a drug product bottle. The parts each have a ledge that fits under the screw cap, an intermediately disposed flange that rests on the screw cap and a semi-circular lid spaced from the flange. The flanges and lids define an encapsulated space when the parts are in a closed position to encapsulate the transfer tubes extending from the bottle.

Abstract: An apparatus for transferring force to a frame of a solar mirror array. The frame has at least one structural element. The apparatus includes a torque plate. The apparatus includes at least one node attached to and in contact with the plate which connects with the structural element. An apparatus for attaching a primary solar mirror frame array with a secondary mirror frame array. A solar trough frame for holding solar mirrors.

Abstract: A system and method for determining a score reflecting the use of force that a police officer applied in an incident, comprising a computer system for collecting, storing and processing data relating to an incident involving the police officer's use of force in one or more interactions within an incident; the computer system iteratively generating scores for each use of force interactions within the incident; the computer system comparing the police officer's use of force score, whether overall or for an interaction to a score for a group of officers; and, the computer system generating a risk score by running a model based on the use of force score.

Abstract: A suspension of a therapeutic substance (e.g., embolic beads) dispersed within a liquid can be delivered via a catheter by using a bidirectional pump to rapidly draw the mixture of the therapeutic substance and liquid from an external syringe into an internal reservoir, then rapidly push the mixture back out into the external syringe. The rapid operation of the bidirectional pump mixes the two constituents so that the therapeutic substance is temporarily suspended within the liquid. Then, a low-speed pump is used to inject the mixture out via the catheter. In some embodiments, the parameters of the low-speed pump are controlled so that the fluid exiting the catheter will experience laminar flow. When the therapeutic substance comprises embolic beads, this can advantageously prevent reflux of the embolic beads, which can be dangerous.

Abstract: Systems and methods for identifying a status of components of hydraulic fracturing units including a prime mover and a hydraulic fracturing pump to pump fracturing fluid into a wellhead via a manifold may include a diagnostic control assembly. The diagnostic control assembly may include sensors associated with the hydraulic fracturing units or the manifold, and a supervisory control unit to determine whether the sensors are generating signals outside a calibration range, determine whether a fluid parameter associated with an auxiliary system of the hydraulic fracturing units is indicative of a fluid-related problem, determine whether lubrication associated with the prime mover, the hydraulic fracturing pump, or a transmission of the hydraulic fracturing units has a lubrication fluid temperature greater than a maximum lubrication temperature, or determine an extent to which a heat exchanger assembly associated with the hydraulic fracturing units is cooling fluid passing through the heat exchanger assembly.

Abstract: A production tool that can aid in the operation of a producing oil/gas well is provided. In use, the tool is connected to production tubing and disposed in a wellbore, for example, below a pump. The tool includes an anchoring body that anchors the production tubing to a casing lining the wellbore. The tool also includes one or more sealing elements that create a seal with the casing.

Abstract: A medical cart providing data continuity, and methods regarding the same, are provided. A holder associated with a body of the cart is configured to receive a removeable battery having a terminal. A connector located at the holder is positioned to receive the terminal when the removeable battery is received within the holder. A power bus is in electrical connection with the connector and an alternative power source. A controller in electrical connection with the power bus automatically begins utilizing the alternative power source following a determination that a loss of power event has occurred.

Abstract: A water soluble polymer composition includes a water soluble polymer and a sugar and may be used as a support in additive manufacturing processes.

Abstract: Various embodiments relate to methods and systems for removing phosphorus and/or nitrogen from water. A method of removing phosphorus and nitrogen from water includes passing starting material water including nitrogen and phosphorus through an elevated pH phosphorus removal stage. The method includes passing the water through an electrolytic nitrogen removal stage. The method includes passing the water through a galvanic phosphorus removal stage. The water produced by the method has a lower phosphorus concentration and a lower nitrogen concentration than the starting material water.

Abstract: A system and method for mobile device active callback prioritization, utilizing a callback prioritization engine operating on a user's mobile device for integration through the operating system and software applications operating on the device, wherein the callback prioritization engine intercepts data or voice messages sent to the mobile device, assigns the intercepted messages to a lobby construct, retrieves and aggregates data related to the assigned messages, inputs the assigned data message and aggregate data into one or more machine learning algorithms wherein the algorithms may analyze the input data, the results of the analysis may be used to compute a priority score for the assigned data message, and generates a callback list from the computed prioritization score.

Abstract: Generally, a stanchion including a base configured to fasten to a support surface to dispose an elongate member in an upright condition. Specifically, a plurality of stanchions configured for interconnection by barrier elements to cordon off an area with a barrier wall.

Abstract: Compositions related to polymeric rodenticides, methods of making, and methods of use related to rodenticides comprising polymers are generally described. Rodenticides described in some aspects comprise an active ingredient, an attractant, and a binder. The active ingredient may comprise a polymer, such as polyacrylate, which expands upon exposure to water. The rodenticide composition may contain the active ingredient in an amount of 50-80 wt. % versus the total weight of the composition. The attractant attracts the rodent to the composition, while the binder adheres the composition together. Upon consumption of the rodenticide composition by a rodent, the active ingredient expands in the stomach (e.g., upon exposure to water). The expansion of the active ingredient causes the rodent to feel satiated and not search for water and food, ultimately leading to the death of the rodent, often within two days. Certain embodiments described herein are also related to methods of making such compositions (e.g.