Abstract: An improved refractory removal system may provide a top, bottom, and nozzle assemblies. At least one of the top or bottom assemblies may provide a rotation mechanism that allows a nozzle or the nozzle assembly to be rotated about a central axis or axis of rotation. The system may provide one or more securing mechanism(s) that allow the system to be secured in a desired position of a refractory vessel that refractory material is to be removed from. The nozzle assembly may provide an axial actuation mechanism that allows the nozzle to be moved away or towards the central axis. The nozzle assembly may also provide a linear actuation mechanism that allows the nozzle to be moved up or down along the central axis. It shall be recognized that the system provides at least three degrees of motion to the nozzle, thereby allowing the system to be utilized for a variety of situations.

Abstract: A frac sleeve system includes a well casing with a tubular wall having a frac port defined therethrough for hydraulic fracturing. A sleeve within the well casing includes a sleeve body. The sleeve is mounted for axial movement relative to the tubular wall of the well casing among three positions including: a closed position in which the sleeve body blocks the frac port, a frac position in which the sleeve body clears the frac port so the frac port is open for hydraulic fracturing therethrough, and a production position in which the sleeve at least partially blocks the frac port.

Abstract: The present disclosure provides methods that use polymerized alkali silicate gels. An example method comprises: introducing a polymerized alkali silicate gel into a subterranean formation containing a fault, wherein the polymerized alkali silicate gel is introduced the subterranean formation such that at least a leading edge of polymerized alkali silicate gel is placed in the fault or within about 10 miles from the fault.

Abstract: Systems, methods, articles of manufacture, and computer-readable media for verified reviews. An application may receive an indication to generate a review. An application programming interface (API) of the application may receive, from a communications interface of a contactless card, encrypted data generated by the contactless card. The API of the application may transmit, to an authentication server: the encrypted data, an indication of the application, and an identifier associated with the entity. The API of the application may receive indications specifying that the authentication server decrypted the encrypted data and determined that the contactless card was used to make a purchase with the entity. The application may permit, based on the indications received from the authentication server, generation of the review. The application may publish the review to one or more review platforms associated with the application.

Abstract: Provided are approaches for providing card information in a highly secure and convenient manner. In some approaches, a transaction card may include a body having a first main side opposite a second main side, wherein a first outer layer extends along the first main side, and an internal layer adjacent the first outer layer, wherein one or more visual features are provided on the internal layer. The transaction card may further include a plurality of beads within a carrier, wherein the plurality of beads and the carrier are positioned between the internal layer and the first outer layer, wherein a force applied to the first main side of the body displaces one or more beads of the plurality of beads.

Abstract: An assembly is used to connect an equalizer bar to a walking beam of a reciprocating pump unit. The walking beam has a bearing shaft having cylindrical ends. Brackets attached to the equalizer bar define slots, each having a hooked section and having a base section. The hooked sections are configured to rest against the cylindrical ends of the bearing shaft. The base sections of the slots oppose the hooked sections at a gap from the cylindrical ends of the bearing shaft. Wedges are configured to position in the slots between the bases and the cylindrical ends of the bearing shaft.

Abstract: Methods and systems disclosed herein may detect a malicious user by scanning the messaging platform with the members for any malicious content using sentiment detection. Sentiment detection may be performed using a machine learning model or another type of sentiment detection. For example, the machine learning model may detect a malicious comment and then determine whether the user is malicious using a variety of behavior patterns. For example, the machine learning model may use factors like reactions from the community, sentiment analysis, and the number of posts to determine whether the user is malicious. By doing so, the system is able to search constantly for users that may be malicious.

Abstract: Systems and methods for improving training efficiency while reducing total labeling cost for downstream modeling using entropy scores for labeling predictions. The system may receive a first text string, process the first text string in an artificial intelligence model, and determine: a first likelihood that the first text string has a first label component; a second likelihood that the first text string has a second label component; a composite likelihood for the first text string based on the first likelihood and the second likelihood; and a first entropy score from the composite likelihood. It may compare the first entropy score to a first threshold entropy score and generate a recommendation to review a first label being assigned to the first text string.

Abstract: Described herein are systems and techniques for monitoring for monitoring and evaluating conditions associated with a wellbore and wellbore operations that use neural operators instead of computationally intensive iterative differential equations. Such systems and techniques allow for determinations to be made as operations associated with a wellbore are performed. Instead of having to wait for computationally intensive tasks to be performed or take risks of proceeding with a wellbore operation without real-time evaluations being performed, these wellbore operations may be continued while determinations are timely made, thus improving operation of computing systems that perform evaluations and that make decisions regarding safely and efficiently performing wellbore operations such as drilling a wellbore, cementing wellbore casings in place, or injecting fluids into formations of the Earth.

Abstract: A system for modeling a roof structure comprising an aerial imagery database and a processor in communication with the aerial imagery database. The aerial imagery database stores a plurality of stereoscopic image pairs and the processor selects at least one stereoscopic image pair among the plurality of stereoscopic image pairs and related metadata from the aerial imagery database based on a geospatial region of interest. The processor identifies a target image and a reference image from the at least one stereoscopic pair and calculates a disparity value for each pixel of the identified target image to generate a disparity map. The processor generates a three dimensional point cloud based on the disparity map, the identified target image and the identified reference image. The processor optionally generates a texture map indicative of a three-dimensional representation of the roof structure based on the generated three dimensional point cloud.

Abstract: Systems and methods for improving label quality in datasets using a quality filter based on a consistency score. The system may receive a first given label for a first text string. It may process the first text string in an artificial intelligence model, as well as determine: a first predicted label for the first text string; and a first consistency score for the first text string based on a comparison of the first predicted label and the first given label. The system may compare the first consistency score to a first threshold consistency score and, in response to comparing the first consistency score to the first threshold consistency score, filter the first text string to a first group. The system may generate a recommendation to use the first group for a supervised learning task.

Abstract: Disclosed are methods, systems, and non-transitory computer-readable medium for targeting bid and position for a keyword. For instance, the method may include obtaining information about the keyword, the information about the keyword including observations of value with respect to position for the keyword. The method may further include applying a Gaussian Process Model on the observations to obtain a prediction function and associated uncertainties, the prediction function and the associated uncertainties relating positions to expected values; applying a Thompson sampling reinforcement learning model on the expected values and the positions to obtain a target position; and applying a bid model to the target position to obtain bid information for the keyword. The method may also include transmitting a bid message to a search engine, the bid message including the bid information.

Abstract: The present disclosure relates to systems and methods for backing up a distributed database provided as a database instance across servers within a first geographic region. In one example, such a system may include at least one processor configured to: generate and transmit a command to duplicate the distributed database in object databases on first region servers; generate and transmit a command to duplicate the object databases on servers in at least a second geographic region independent from servers in the first region; and, when an error is detected with at least one server within the first region: generate and transmit a command to initiate a new distributed database on second region servers, generate and transmit a command to populate the new distributed database using the object databases on second region servers, and generate and transmit a command to re-route traffic from the distributed database to the new distributed database.

Abstract: An electromagnetic interference (EMI) filter disposed in a downhole tool. The EMI filter may include at least one common mode choke. The at least one common mode choke may include a high permeability magnetic core and three coils wound around the high permeability magnetic core. The three coils may include an input and an output. The EMI filter may further include a power supply connected to two coils of the three coils and a common ground connected to a third coil of the three coils.

Abstract: Systems and methods are disclosed for controlling a downhole tool by encoding a tool control signal in a fluid flow and obtaining a temperature response downhole. In an example, a system for controlling a downhole tool includes a signal transmitter, a signal receiver, and a controller. The signal transmitter is uphole of the tool to be controlled (e.g., at surface) and encodes the tool control signal by varying one or more fluid flow parameters of a fluid flow down a well. The signal receiver is positionable in the well in fluid communication with the fluid flow. The signal receiver detects a temperature response in the fluid flow resulting from varying the one or more fluid flow parameters. A controller controls the downhole tool according to the temperature response.

Abstract: The method includes establishing a retention medium, connecting a plurality of elements together to form an aerosol-generating article, the plurality of elements including a retention medium directly abutting a heat diffuser, the heat diffuser including a porous body on a distal end of the aerosol-generating article, the porous body being configured to absorb heat such that the porous body heats air drawn through the porous body and the retention medium during an operational use of the aerosol-generating article, providing at least one frangible capsule that releasably contains a substrate, and inserting the at least one frangible capsule within the retention medium, the retention medium being configured to absorb and retain the substrate after the at least one frangible capsule is ruptured by an application of an external force, the retention medium being devoid of the substrate prior to a release of the substrate from the at least one frangible capsule.

Abstract: An electronic smoking article includes a liquid aerosol formulation, a heater operable to at least partially volatilize the liquid aerosol formulation and form an aerosol and a tubular filter segment downstream of the heater. The tubular filter segment is operable to selectively filter aerosol particles and vapors from the aerosol.

Abstract: The exemplary embodiments may provide a password-less user authentication mechanism that enables users to be authenticated for accessing an online service. The online service may be, for example, a website that provides a service. A user registers with the online service and then is given a private cryptographic key that is used to gain access to the online service. The exemplary embodiments enable the creation of subaccounts that are affiliated with an account. At least one offspring cryptographic key pair for user authentication may be generated for each subaccount. The offspring cryptographic key pairs are derived from the primary cryptographic key pair for user authentication that is associated with the account. The offspring key cryptographic key pairs are used to gain access to the online service via a subaccount. Each subaccount may have different modes of access. Each subaccount may have different authorizations relative to use of the online service.

Abstract: A horsehead is used on a walking beam of a reciprocating pump unit. The horsehead includes side plates, a face, tabs, and brace plates. The side plates are spaced apart, and the face affixed to front, arced edges of the side plates. The face defines a split therein extending from a bottom end toward a top end, and the tabs are affixed to the face across the split. The face thereby defines two runner surfaces. A fixture at the top end of the face can be used for connection to a bridle of the pump unit. The brace plates are connected in the space between the side plates and are arranged in a lattice structure. Preferably, the brace plates include cutouts to reduce weight.

Abstract: The invention provides a method involving assessing the vitamin C renal leak status of a human subject, vitamin C renal leak being the clinically inappropriate presence of vitamin C in urine. The method comprises assaying for the concentration of vitamin C in a plasma sample and in collected urine output, whereby the presence of vitamin C in the collected urine output and a concentration of vitamin C in the plasma sample less than the Minimum Elimination Threshold (MET) indicates the presence of vitamin C renal leak. Vitamin C renal leak also can be quantified by determining the fractional excretion of vitamin C (FeVC), which is a measurement of the degree of urinary vitamin C excretion relative to plasma vitamin C concentration corrected by creatinine clearance. The invention also provides a test kit for assessing vitamin C renal leak and a test kit for assessing FeVC.