Abstract: A coupling includes an inner surface configured to receive a shaft of an electric submersible pump system through the inner surface. The coupling also includes an outer surface having a torsional undercut into the coupling, where the torsional undercut is configured to induce a failure of the coupling prior to a failure of the shaft.

Abstract: Logic may provide a hierarchical label structure for a document with a predicted set of hierarchical labels. Logic may provide a historical label performance database comprising performance data associated with each assignee in a complete set of assignees for each label in a complete set of the hierarchical labels. Logic may generate a first vector for the hierarchical label structure for the document. Logic may generate a second vector for the assignees in an identified set of assignees, comprising each hierarchical label in the predicted set of hierarchical labels for the document, the identified set comprising one or more of the assignees in the complete set of assignees. Logic may perform a similarity search to identify a predicted assignee from the identified set of assignees and logic may predict a selected assignee of the identified set of assignees to associate with the document via the similarity search.

Abstract: A process is provided for protecting a primate host from a self-replicating infection by an immunodeficiency retrovirus. Protection is achieved by administering to the primate host a combination of a pharmaceutically effective amount of a nucleoside reverse transcriptase inhibitor and a pharmaceutically effective amount of a nucleotide reverse transcriptase inhibitor prior to exposure to the immunodeficiency retrovirus. The administration is effective if provided in a single dose within 24 hours of the exposure. A regime of regular daily doses is also effective in providing protection against an immunodeficiency retrovirus becoming self-replicating after infecting a primate host.

Abstract: Techniques to enable a chat bot system to use metaphors during an interaction with a user are provided. Identification information for the user can be received and can be used to determine a customer group assigned to the user. An initial state of a sequence for resolving an issue of the user can be determined, with the sequence for resolving the issue of the user including a final state wherein the issue of the user is resolved. A metaphor can be selected to include in a question based on the determined customer group assigned to the customer and the determined initial state of the sequence for resolving the issue of the customer. The question can request information from the user relating to the issue of the user. The question can be generated to include the selected metaphor and then provided to the user with a prompt to provide a response.

Abstract: A fiber optic cable includes a braided core defining a plurality of helical grooves, and one or more optical fibers disposed along one or more of the helical grooves of the braided core. The elongated structures braided to form the braided core are composed of braided ropes or monolithic wires. An outer layer disposed over an outer surface of the braided core is composed of a metal layer or a flexible plastic layer.

Abstract: A system (10) or method (700) for on-line monitoring of a transformer (10) can include a first sensor (15a) coupled to a primary high voltage side bushing (14a) for monitoring bushing dielectric losses on a high voltage side of the transformer, a second sensor (17a) coupled to a secondary low voltage side bushing (16a) for monitoring bushing dielectric losses on a low voltage side of the transformer, and one or more processors (18) coupled to the first and second sensors. The one or more processors can simultaneously sample (701) data from the first and second sensor, where the primary high voltage side bushing and the secondary low voltage side bushing are operating on a same phase, compare (704) the sampled data over time to provide sampled readings, and generate (706) an alert upon detection of a deviation over a predetermined threshold between sampled readings for the sampled data over time.

Abstract: Systems, methods, articles of manufacture for authentication of payment cards. A server may assign, in a database, an expected card identifier to a contactless card, the contactless card associated with an account. The server may receive, from a client device, a request comprising a uniform resource locator (URL), a parameter of the URL comprising a card identifier, wherein the URL is transmitted by the contactless card to the client device. The server may extract the card identifier from the URL and compare the extracted card identifier to the expected card identifier in the database. The server may determine, based on the comparison, that the extracted card identifier matches the expected card identifier. The server may authenticate the request based on the extracted card identifier matching the expected card identifier, and transmit, to the client device, an indication specifying that the request was authenticated.

Abstract: Polypeptides that specifically bind the spike (S) protein of human coronavirus, selected from six camel VHH single domain antibody phage display libraries, are described. The S protein-specific polypeptides disrupt binding of the SARS-CoV-2 and/or SARS-CoV S protein to the cellular receptor ACE2, which is important for neutralization of the virus. Use of the S protein-specific polypeptides for the diagnosis and treatment of SARS-CoV-2 and/or SARS-CoV is described.

Abstract: Methods and fluids for enhancing friction reduction. An example method introduces a treatment fluid into a wellbore tubing disposed in a wellbore. The wellbore tubing is composed of metal ions. The treatment fluid is composed of an aqueous fluid and a metal silicate. The method further includes coating at least a portion of the wellbore tubing with a silicate film produced from the reaction of the metal silicate with the metal ions of the wellbore tubing and then fracturing the subterranean formation.

Abstract: A wellbore sealing device may be designed and manufactured using computer-assisted design and a hybrid of automated manufacturing and molding techniques. In one example, a stress analysis is performed to identify a reinforcement region to be reinforced in a sealing device component. Reinforcement fibers are selectively arranged using automated placement of the fibers in a location within a mold corresponding to the reinforcement region. The sealing device component is then molded, with the reinforcement fibers embedded in a matrix material locking the reinforcement fibers in position within the reinforcement region.

Abstract: A packaging includes an outer box, an inner tray, and a lock mechanism. The lock mechanism includes a first lever and a second lever to lock the inner tray to the outer box and unlocks the inner tray from the outer box.

Abstract: Systems, methods, apparatuses, and computer-readable media for secure generation of one-time passcodes using a contactless card. In one example, an operating system (OS) of a device may receive a uniform resource locator (URL) and a cryptogram from a contactless card. The OS may launch an application associated with the URL. The application may transmit the cryptogram to an authentication server. The application may receive a decryption result from the authentication server indicating the authentication server decrypted the cryptogram. Based on the decryption result, the application may request an OTP. The processor may receive an OTP from an OTP generator. The application may receive an input value and compare the input value to a copy of the OTP. The application may determine that the comparison results in a match, and display, based on the determination that the comparison results in the match, one or more attributes of the account.

Abstract: An acoustic apparatus and method of determining the composition of a floor, based on the filtered sound waves produced by vibrating the floor is disclosed. The apparatus includes a transducer for generating vibrations and/or sound, as well as microphones for detecting sounds. The apparatus may include two microphones so that ambient noise can be removed from an audio signal.

Abstract: Provided is a computer-implemented method for communicating transaction data between mobile devices, including: registering account data associated with a merchant account corresponding to short message service (SMS) device data associated with a point-of-sale (POS) device, and account data associated with a user account as corresponding to SMS device data associated with a user device; receiving, via an SMS communication connection, transaction data associated with a transaction from the POS device, verifying the POS device and the user device are registered; in response to determining that an account balance of the user account is greater than the transaction authorization limit, transmitting a first confirmation message associated with the transaction, via an SMS communication connection, to the user device to confirm the transaction; and in response to receiving a first confirmation response associated with the transaction, via an SMS communication connection, processing the transaction data.

Abstract: A method for calibrating a unit controller with a managing process determining a position of a decoupler mechanism on the pumping unit. The managing process can calibrate the unit controller with a dual pump mode in response to determining the decoupler mechanism is in a coupled position. The managing process can calibrate the unit controller with a single pump mode in response to determining the decoupler mechanism is in a decoupled position with the pumping unit operating with the first fluid end coupled to the power end and the second fluid end decoupled from the power end. The system controller can pump a wellbore treatment fluid in accordance with the pumping unit in i) the dual pump mode or ii) the single pump mode.

Abstract: A method includes positioning a downhole tool in a borehole formed in a subsurface formation, wherein the downhole tool comprises a plurality of calipers arranged around a circumference of the downhole tool. The method includes detecting, using the plurality of calipers, a plurality of standoff measurements at different rotation angles and determining a plurality of apparent diameters of the borehole for the different rotation angles of the downhole tool based on the plurality of standoff measurements and at least one of a radius and a diameter of the downhole tool. The method includes determining a probability function based on the plurality of apparent diameters and determining a shape of the borehole based on the probability function.

Abstract: Aspects described herein may allow for authentication of smart card usage. A server may receive, from a first computing device associated with a first user, a delegation request to delegate an authority, to a second user, to use a secondary card associated with an account belonging to the first user. The first user may hold a primary card associated with the account and the delegation request comprises one or more limitations on the authority. The server may also receive, via a sensor on the secondary card, first biometric information associated with the second user. The server may authenticate subsequent transaction requests based on the first biometric information and one or more limitations. In this way, the system may provide account holders with the flexibility to authorize other users to use the account while minimizing the risk of being exposed to fraudulent requests.

Abstract: An income analysis platform may receive information associated with employment-related activity of a user, wherein the employment-related activity is associated with an employment status of the user. The income analysis platform may analyze, using an employment analysis model, the information to determine the employment status of the user. The income analysis platform may determine, based on the information and using the employment analysis model, that there is a change in the employment status of the user. The income analysis platform may identify, based on the determined change in the employment status of the user, a service associated with a transaction account of the user. The income analysis platform may determine, based on the change in the employment status, that one or more terms of the service are to be adjusted. The income analysis platform may perform an action associated with adjusting the one or more terms of the service.

Abstract: A method includes receiving fluid property data of a fluid and receiving material property data for materials in the fluid. The method includes detecting material sensor data from at least one sensor and applying an inverse model and a forward model to the fluid property data and the material property data to provide at least in part synthetic spectral channel data for the materials.

Abstract: Systems and methods related to preparing foamed cement for laboratory analysis are provided. A prepared cement slurry is placed in a cement reservoir cell configured to pressurize the cement slurry contained within the cement reservoir cell to a capture pressure. After pressurization, the cement slurry and a compressed gas are introduced into a foam generator. Foamed cement generated in the foam generator is introduced from the tee into a foam capture cell where it can cure prior to analysis.