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 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: Authentication card with integrated stitching. In some aspects, an authentication card for short range wireless communications with an entity-specific stitching design includes at least one card layer comprising a first and second portion. The first portion may include a plurality of apertures provided on the first portion and a thread may be inserted through the plurality of apertures to create a stitching design, where the stitching can be used to identify an associated entity. A microchip may be provided on the second portion of the at least one card layer, wherein the microchip is coupled with an antenna enabling authentication (e.g., contactless) by employing radio frequency identification (RFID) or near field communication (NFC).

Abstract: A computer-implemented method for template generation may include: receiving a first plurality of variables, each of the first plurality of variables specifying a feature to be implemented in a new template for document generation; for each of a plurality of existing templates for document generation, determining a degree of similarity between the first plurality of variables and a plurality of variables included in the respective existing template; upon determining that none of the degrees of similarity respectively determined for the plurality of existing templates satisfies a similarity threshold, determining that a combination of variables from two or more of the plurality of existing templates has a degree of similarity with the first plurality of variables satisfying the similarity threshold; and generating the new template based on the two or more of the plurality of existing templates.

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: Methods and systems are described herein for an access control system that may receive, from a device associated with a cryptography-based storage application, a blockchain operation request. The blockchain operation request may include an identifier of a cryptographic token (e.g., non-fungible token) that may store encrypted verification data encrypted using a public key associated with the cryptography-based storage application. The access control system may use an address associated with the cryptography-based storage application to send the verification data so that the verification data is decrypted and a first encoding of the decrypted data is generated by the device associated with the cryptography-based storage application. The access control system may then compare that first encoding with a second encoding made from the original verification data, and, based on the first encoding matching the second encoding, generate an authentication confirmation.

Abstract: This disclosure provides tobacco plants having a mutation in PR50 and transgenic tobacco plants containing a PR50 RNAi, and methods of making and using such plants.

Abstract: A cartridge of an e-vaping device includes a housing extending in a longitudinal direction, a reservoir in the housing, a heater in the housing, and an absorbent material at least partially surrounding the sinusoidal shaped member. The reservoir is configured to store a pre-vapor formulation. The heater has a sinusoidal shaped member translating about an elliptical shape to define a channel there through. The absorbent material is in fluid communication with the reservoir.

Abstract: A method may include: circulating a water-based drilling fluid though a drill string to extend a wellbore through a subterranean formation; separating at least a portion of the water-based drilling fluid from the circulated water-based drilling fluid to form a separated portion of water-based drilling fluid; mixing a metal salt and a metal oxide into the separated portion of water-based drilling fluid to form a chemical sealing pill; introducing the chemical sealing pill into the drill string and flowing the chemical sealing pill into a lost circulation zone in the subterranean formation; allowing at least a portion of the chemical sealing pill to set in the lost circulation zone to form a set plug, wherein the set plug seals the lost circulation zone and reduces loss of fluid into the lost circulation zone from subsequently introduced fluids; and preventing loss of fluid into the lost circulation zone from subsequently introduced fluids with the set plug.

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: An exemplary embodiment may include a control hub configured to receive data from an emissions analyzer and a leak detection camera. The emissions analyzer may detect levels of various gases and relay such information to the control hub. In an exemplary embodiment, the emissions analyzer may purge after every test to ensure longevity and accuracy. A leak detection camera may implement quantifying optical gas imaging in order to continuously monitor for fugitive leaks on a compressor package. If a leak is detected, it may be logged and the user or an operating group may be alerted.

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: An assembly connects a pitman arm to a slot in a crank arm of a pumping unit. A pin extends from the pitman arm disposed on a first side of the crank arm. The pin is disposed in the slot of the crank arm and has a distal end exposed on a second side of the crank arm. The distal end defines an external shouldered profile. A clamp is positioned on the distal end of the pin. The clamp has an internal shouldered profile, which is configured to engage the external shouldered profile on the pin. One or more spacers are disposed on the clamp and are configured to adjustably extend from the clamp toward the second side of the crank arm.

Abstract: Electric motors are used in oil and gas applications to drive downhole submersible pumps. Upon shutdown of such pumps, a column of fluid remains thereabove. When power is removed, the fluid flows back down the casing causing the motor to rotate backward and generate a voltage that is applied up the power cable to the surface. If the motor is restarted before backspin ceases, damage to the drive shaft is likely. Additionally, the up-hole applied voltage during backspin can pose a shock-risk to personnel at the surface. The present systems and methods minimize these risks by identifying backspin events based on determining phase angle differences at the three phases of the permanent magnet motors and alerting relevant personnel and otherwise preventing re-initiation of motor operation until after backspin has ceased.

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.

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: This disclosure relates generally to system and method for identifying suitable equipment for pelletizations of particles. Conventional approaches for identifying pelletization equipment for a process are cumbersome and unmethodical. Even though, methods of identifying optimal operating conditions in a particular equipment for a desired product specification are widely discussed in literature, these research works lack in considering practical criteria like equipment cost, equipment capacity, equipment maintenance, etc., in addition to product specifications while deciding a suitable pelletization equipment. Present disclosure provides system and method that involve optimization to identify the best range of operating parameters in a pelletization equipment to achieve desired product size distribution for a given feed size distribution.

Abstract: Embodiments relate to a hydraulic fracturing system that includes a blender unit. The system includes an auger and hopper assembly to receive proppant from a proppant source and feed the proppant to the blender unit for mixing with a fluid. A first power source is used to power the blender unit in order to mix the proppant with the fluid and prepare a fracturing slurry. A second power source independently powers the auger and hopper assembly in order to align the hopper of the auger and hopper assembly with a proppant feed from the proppant source. Thus, the auger and hopper assembly can be stowed or deployed without use of the first power source, which is the main power supply to the blender unit.

Abstract: Disclosed are examples of systems, methods and techniques related to delivering a service widget that collects data and provides a service. A service widget is provided in response to a widget delivery request received from a user browser. The delivered service widget enables the user browser to request item-related services from an enterprise. A request for the item-related services is received by an enterprise from the delivered service widget. Provision of the service is enabled upon confirmation that an authentication token fetched from the client backend system is valid for the client backend system, the services request may be delivered to an enterprise server. The enterprise, in response to an analysis of the information related to the item available for purchase, may indicate that the item available for purchase meets a purchase threshold of the enterprise and provide an evaluation result including parameters of the item-related services.

Abstract: Systems, methods, and computer-readable storage media for providing communication recommendations to users. The system receives electronic transcripts associated with a first user and generates, based on the transcripts, a communication profile of the user. The system also receives additional user transcripts associated with a plurality of additional users and generates additional communication profiles for those additional users based on the additional transcripts. The system receives a request to communicate with at least one user within the plurality of additional users regarding a specified topic, identifies a second user from within the plurality of additional users, and generates a communication initiation recommendation for the first user to communicate with the second user. The system then transmits the communication initiation recommendation to a first user computing device associated with the first user.