Abstract: A low power receiver having a feedforward equalization, FFE, based continuous time linear equalizer, CTLE. The FFE CTLE comprises: an input for receiving an input signal; a main first path operably coupled to the input and comprising a source-follower transistor arranged to apply a scaling factor to the received input signal; a second path operably coupled to the input and comprising a delay arranged to apply a delay to the received input signal and a common source transistor common source transistor arranged to apply a scaling factor to the received delayed input signal, wherein the source-follower transistor and the common source, CS, transistor are connected as a single SF-CS stage whose output is arranged to subtract the output of the common source transistor from an output of the source-follower transistor.

Abstract: A 3D printed proppant includes a core having support bars extending from the core to a shell, the shell encapsulating the core and the support bars. Another 3D printed proppant includes a porous core and a shell encapsulating the porous core, where the porous core has a porosity from 25% to 75%. The 3D printed proppant has a particle size from 8 mesh to 140 mesh. The core, the support bars, the porous core, the shell, or combinations thereof includes metal, polymer, ceramic, composite, or combinations thereof. Additionally, a method for producing a 3D printed proppant is provided.

Abstract: The disclosed technology is generally directed to chatbot conversation management. In one example of the technology, a generic model associated with a first property associated with a chatbot manager is received. The generic model is generated based on machine learning. A refined model that is associated with the first property is generated based on the generic model and a first plurality of phrases. A first conversation is held between a chatbot and an end user. Upon determining that the value of the first property for the end user is not stored in the database, via the chatbot, during the first conversation, the refined model is used to dynamically ask questions to the end user to determine a value of the first property for the end user. In a second conversation between the chatbot and the end user, the value of the first property for the end user is referenced.

Abstract: Disclosed herein are embodiments of a wide bandwidth attenuator circuit having a tunable gain and tunable input impedance. In some embodiments, the wideband attenuator circuit comprises a serial capacitor shunted to ground by a plurality of circuit slices that are connected in parallel and switchably coupled to the output node of the attenuator. Each circuit slice has a tunable resistor that can be set to a conductive state (“enabled”) or a high impedance state (“disabled”) The number of enabled circuit slices that are connected in parallel may be used to program the attenuator gain and the attenuator impedance.

Abstract: A receiver front-end includes a first variable-gain amplifier that performs attenuation; a continuous time linear equalizer coupled to the input or output of the first variable-gain amplifier, wherein a combination of the first variable-gain amplifier and the continuous time linear equalizer produces a processed signal; a plurality of track-and-hold circuits that sample the processed signal in an interleaved manner; and a plurality of second variable-gain amplifiers receiving input signals from the plurality of track-and-hold circuits respectively.

Abstract: A family of ?-glucosidase inhibitors are identified. Exemplary ?-glucosidase inhibitors may be obtained from Heterophragma adenophyllum seem. The inhibitors are used to lower blood sugar levels and thus to treat diseases related to or characterized by high blood sugar, such as diabetes.

Abstract: A method including obtaining, by a computer processor, at least one key log in each of a set of training wells located, at least partially, within a hydrocarbon reservoir, identifying a target formation bounding surface in each of the set of training wells, and generating an initial depth surface for the target formation bounding surface from the target formation bounding surface in each of the set of training wells. The method further including, determining from the initial depth surface an initial depth estimate of the target formation bounding surface at a location of a current well, forming an objective function based, at least in part on a correlation between each key log in each of the set of training wells, and each corresponding key log in the current well, and optimizing the objective function by varying a depth shift between each of the set of training wells and the current well, to determine an optimum depth shift that produces an extremum of the objective function.

Abstract: The disclosed technology is generally directed to chatbot conversation management. In one example of the technology, a generic model associated with a first property associated with a chatbot manager is received. The generic model is generated based on machine learning. A refined model that is associated with the first property is generated based on the generic model and a first plurality of phrases. A first conversation is held between a chatbot and an end user. Upon determining that the value of the first property for the end user is not stored in the database, via the chatbot, during the first conversation, the refined model is used to dynamically ask questions to the end user to determine a value of the first property for the end user. In a second conversation between the chatbot and the end user, the value of the first property for the end user is referenced.

Abstract: A method may include obtaining first nuclear magnetic resonance (NMR) data and acquired permeability data regarding a geological region of interest. The method may further include determining, using a neural network and second NMR data, predicted permeability data regarding a predetermined formation within the geological region of interest. The neural network may be trained using the first NMR data and the acquired permeability data. The method may further include determining a predetermined fracture size within the predetermined formation based on the predicted permeability data. The method may further include determining a predetermined type of lost circulation material (LCM) based on the predetermined fracture size. The method may further include transmitting a command to a well system that triggers a well operation using the predetermined type of LCM.

Abstract: A family of ?-glucosidase inhibitors are identified. Exemplary ?-glucosidase inhibitors may be obtained from Heterophragma adenophyllum seem. The inhibitors are used to lower blood sugar levels and thus to treat diseases related to or characterized by high blood sugar, such as diabetes.

Abstract: A system provides a way to scan protected electronic data via database schema collection. In particular, the system may comprise a database schema collection application which may aggregate physical database schema from all of the databases within the network environment. The system may further comprise a protected data scan application which may receive scan results from the database schema collection (e.g., by scanning metadata) and subsequently output the scan results to other applications and/or repositories. The protected data scan application may further report changes in database schema to account for new values and/or categories existing within the various databases.

Abstract: A process for designing a coated proppant particle for downhole transportation and placement. A carrier fluid may transport the coated proppant particle downhole. The process may include selecting a proppant particle material and a coating material. The process may also include selecting a target reduction in a settling velocity and determining a diameter of the coating material disposed on the proppant particle material based on the selected proppant particle material and the density of the coating material. The process for designing a coated proppant particle may include selecting a coating material thickness for coating on the proppant particle material and determining a coating material and design for coating on the proppant particle with the coating material thickness based on the selected proppant particle material and thickness of the coating material to achieve the target reduction in settling velocity.

Abstract: Single-use, disposable helmets, hoods, and helmet/hood assemblies are disclosed. Methods of making and using single-use, disposable helmets, hoods, and helmet/hood assemblies are also disclosed.

Abstract: Single-use, disposable helmets, hoods, and helmet/hood assemblies are disclosed. Methods of making and using single-use, disposable helmets, hoods, and helmet/hood assemblies are also disclosed.

Abstract: An analog-to-digital circuit that digitizes an analog voltage. The analog-to-digital circuit includes plural comparators functionally connected to form a tree that has levels i, and each level i has branches j, and an encoder connected to the plural comparators and configured to generate a digitized value of an input analog voltage. Each comparator from a level i has first and second outputs, and each of the first and second outputs is electrically connected to an input of different comparators from a next level i+1 of the tree.

Abstract: This invention relates to a novel nickel catalyst and a novel one-pot solution combustion synthesis of that catalyst for the CO2 reforming and low temperature steam reformation of methane. The novel nickel catalyst has exceptional activity for dry reforming and steam reforming of methane, and exhibits excellent resilience to deactivation due to carbon formation.

Abstract: A low power receiver having a feedforward equalization, FFE, based continuous time linear equalizer, CTLE. The FFE CTLE comprises: an input for receiving an input signal; a main first path operably coupled to the input and comprising a source-follower transistor arranged to apply a scaling factor to the received input signal; a second path operably coupled to the input and comprising a delay arranged to apply a delay to the received input signal and a common source transistor common source transistor arranged to apply a scaling factor to the received delayed input signal, wherein the source-follower transistor and the common source, CS, transistor are connected as a single SF-CS stage whose output is arranged to subtract the output of the common source transistor from an output of the source-follower transistor.

Abstract: A lavage handle for facilitating at least one of an irrigation function and a suctioning function at a target zone preferably includes a portable body, a power-operated fluid-displacing mechanism in communication with said body wherein said fluid-displacing mechanism has one of a first operating mode for inducing outward irrigation of fluid towards the target zone and a second operating mode for inducing inward suction of fluid from the target zone. An actuation mechanism is located at said body and operable communicated with said fluid-displacing mechanism such that said fluid-displacing mechanism is selectively operated in at least one of said first operating mode and said second operating mode. The actuation mechanism may include an irrigation-inducing mechanism and/or a suction-inducing mechanism.

Abstract: Systems and methods for detecting the presence and/or location of defects (e.g., incomplete solders, broken cables, misconnections, defective sockets, opens, shorts, etc.) along electrical lines are described. The systems and methods described herein may use time-domain reflectometry (TDR), a measurement technique used to determine the characteristics of electrical lines by observing reflected waveforms. TDR may be performed in some embodiments by determining the times when a first event and a second event occur, and by determining the space traveled by a probe signal based on these times. The first event may occur when a first signal transition crosses a first threshold and the second event may occur when a second signal transition crosses a second threshold, where the second signal transition may arise in response to the first signal transition reflecting against a defect along the electrical line.

Abstract: A fingerprint scanner for capturing fingerprints of infant children is described. The fingerprint scanner includes a transparent tube configured for an infant child hand and an array of camera sensors spaced apart on the transparent tube so that each camera sensor captures an overlapping part of an image captured by its neighboring camera sensor. The array of camera sensors is arranged below a surface, along a periphery of a circumference and substantially along a length of the transparent tube up to a processor compartment. The fingerprint scanner also includes a processing circuitry configured to: simultaneously receive multiple images from the array of camera sensors, and process the multiple images including merging the multiple images to remove overlapping portions and recover a single image of the infant child's fingertips and palm.