Abstract: According to the disclosed approaches, a first processor receives location messages from second processors. Each location message specifies published geographical coordinates that indicate a geographical location, and the published geographical coordinates are a version of actual geographical coordinates truncated from a first level of precision to a second level of precision. The first processor accesses subscriptions to location topics in response to the location messages. Each location topic specifies in the second level of precision, subscribed-to geographical coordinates of a location. The first processor determines whether or not the published geographical coordinates match any of the subscribed-to geographical coordinates. Non-matching location messages are discarded, and matching location messages are transmitted to one or more third processors identified by the subscriptions.

Abstract: The strength of a proppant or sand control particulate may be improved by coating the proppant to form a composite. The composite has enhanced compressive strength between about 34 to about 130 MPa and minimizes the spalling of fines at closure stresses in excess of 5,000 psi. Conductivity of the proppant pack in the fractures is further enhanced due to the increase in strength of the particles.

Abstract: A method is performed for defining optimal landing location(s) of horizontal wells for hydraulic fracturing stimulation, for improved well performance of unconventional reservoirs. The method includes evaluating one or more planes of weakness, pinch-out points, or thin rock layering in the reservoir that may impede hydraulic fracture growth or may close fractured sections during production. The method can include conducting detailed analysis on core and open hole logs, and defining the presence, density, orientation, spacing, and mechanical properties of various thin interfaces and barriers in the rock mass. The method can include classifying the barriers or thin interfaces based on their effect on hydraulic fracture growth or fracture connectivity, and on uncertainty of their effect.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for training a neural network model to predict mesh vertices corresponding to a three-dimensional surface geometry of an object depicted in an image.

Abstract: Systems and methods which facilitate management of functionality provided with respect to data objects in a multiuser environment are described. Embodiments are adapted to provide concurrency with respect to the data of the data objects in the multiuser environments, such as through the use of channel grouping techniques for providing various data communications. Additionally or alternatively, embodiments are adapted to implement data object assignments for facilitating management functionality available with respect to the multiuser environment, such as through the use of data object assignment containers created for storage of instances of assigned data objects. Through pre-creation of data object assignments to assignees, multiple users of a multiuser environment are enabled to utilize the functionality provided with respect to data objects without duplication of tasks and/or undesired conflicts between the users.

Abstract: Systems, apparatus, and methods for data distribution within a failure domain tree are described herein. Data objects may be distributed uniformly into symmetric failure domain trees. Asymmetric failure domain trees may be used to generate symmetric failure domain trees. The systems, apparatus, and methods may distribute a data object to attempt to satisfy the failure tolerance level of as many failure domain levels of the symmetric failure domain trees as possible.

Abstract: The disclosure is directed to methods related to creatinine, for example, a method for its safe administration to a human, a method for using creatinine to improve the bioavailability of creatine, and a metn.

Abstract: A drone control method is provided. The method may be responsive to drone recharge energy cost being greater than a predefined threshold and include commanding a processor of the drone to execute actions that preclude the drone from recharging. The method may also be responsive to drone charge level falling below a charge threshold selected only while the drone recharge energy cost exceeds the predefined threshold and include commanding the processor to execute actions to recharge the drone.

Abstract: A gesture based authentication system for an autonomous vehicle (AV) uses light detecting and ranging (lidar) to observe a user making a specific gesture and, in response to observing the gesture, authorizes the user to access the vehicle. The authentication system may first identify a human in the vicinity of the AV, and then compare a body position of the identified human to a model trained to determine if a human is performing the specific gesture. If the model determines that the identified human is performing the gesture, the AV authorizes the user to access the vehicle, e.g., to accept a delivery or to ride in the AV.

Abstract: Methods, systems, and media are shown for reducing the vulnerability of user accounts to attack that involve creating a rule for a user account that includes a permitted parameter corresponding to a user account activity property, monitoring the account activity of the user account. If it is determined that account activity property is inconsistent with the permitted parameter, then the user account is disabled. An example of a permitted parameter is a permitted time period, such as a start time, an end time, a recurrence definition, a days of the week definition, a start date, an end date, and a number of occurrences definition. Other examples are a physical parameter, such as a permitted geographic location, device, or network, or a permitted usage parameter, such as a permitted application, data access, or domain.

Abstract: A chemical vapor deposition method for producing a dielectric film, the method comprising: providing a substrate into a reaction chamber; introducing gaseous reagents into the reaction chamber wherein the gaseous reagents comprise a silicon precursor comprising an silicon compound having Formula I as defined herein and applying energy to the gaseous reagents in the reaction chamber to induce reaction of the gaseous reagents to deposit a film on the substrate. The film as deposited is suitable for its intended use without an optional additional cure step applied to the as-deposited film.

Abstract: An outer space deployable antenna may include a waveguide antenna feed section. A first plurality of wires and a first plurality of biased hinges may couple the first plurality of wires together to be self-biased to move between a collapsed stored configuration and an extended deployed configuration. A horn antenna section may be coupled to the waveguide antenna feed section and may include a second plurality of wires and a second plurality of biased hinges coupling the second plurality of wires together to be self-biased to move between the collapsed stored configuration and the extended deployed configuration. A flexible electrically conductive layer may cover the waveguide antenna feed section and the horn antenna section in at least the extended deployed configuration.

Abstract: Disclosed herein are aspects of conveyor systems and product mover systems. In one embodiment, an expandable conveyor segment, comprises an end frame; a plurality of x-bars coupled with each side of the end frame, each x-bar including: an outer bar having a first, second, and third joint point; and an inner bar having a first, second, and third joint point; wherein the inner bar is movably coupled to the outer bar by a double-shouldered spacer; and wherein each x-bar is movably coupled with at least one adjacent x-bar; and a plurality of rollers coupled between the plurality of expandable x-bars.

Abstract: This disclosure relates to automatically configuring a front-haul switched Ethernet network for a C-RAN. The topology of the front-haul switched Ethernet network is automatically discovered. One or more switches in the front-haul switched Ethernet network are automatically configured. The configuration of the one or more switches in the front-haul switched Ethernet network is automatically verified. The discovered topology can be automatically verified. Also, the discovered topology or the configuration of the front-haul switched Ethernet network can be automatically validated to check if it corresponds to a network design for the front-haul switched Ethernet network.

Abstract: Systems and methods for operating a security tag. The methods comprise: transitioning a pin head from an extended position to a collapsed position by causing at least one first telescoping segment to slidingly engage a second telescoping segment; locking a shaft, extending out and away from the pin head in the collapsed position, using a securement mechanism disposed inside a housing of the security tag; and preventing a transfer of pin head rotation to the shaft at least when the shaft is locked by the securement mechanism.

Abstract: An exemplary damper module is configured for use with a latchbolt assembly, and generally includes a mounting bracket, a first slowing mechanism, and a second slowing mechanism. The latchbolt assembly generally includes a drive member, a latchbolt, and a retractor connected between the drive member and the latchbolt. Each of the slowing mechanisms is independently operable to slow the extension speed of the latchbolt. The first slowing mechanism includes a rack gear and a rotary damper including a pinion gear. The rack gear is configured to be mounted to the drive member, and the rotary damper is mounted to the mounting bracket. The second slowing mechanism includes a slowing arm and a biasing member engaged with the slowing arm. The slowing arm is movably mounted to the mounting bracket and is configured to engage the retractor.

Abstract: A thermal and environmental noise suppressing interface circuit which is configured to operate cold and is configured to perform biasing with suppression of noise currents from room temperature noise voltages and dc coupled rf readout of a superconducting device under test with a single coaxial cable or equivalent conductor pair. The circuit is configured to suppress the propagation of thermal and environmental noises to/from sensors operating at a different temperature from its operating and control equipment while maintaining a single input-output channel, and provides for the placement of a local grounding impedance on an intercept board.

Abstract: An apparatus for installing a fusion implant into the sacroiliac joint (“SI Joint”). The apparatus comprises a working channel, a joint locator, an abrading device, and an insertion device. The joint locator is inserted into the working channel, and this combination, guided by a K-wire, is advanced into the SI Joint. The joint locator is removed, and the abrading device is used to abrade the sacrum and ilium inside the SI Joint. The insertion device then advances the implant into the abraded area of the SI Joint. The abraded area heals across the implant, thereby fusing the sacrum to the ilium and fusing the SI Joint.

Abstract: The techniques described herein facilitate asynchronous execution of computationally expensive spreadsheet tasks and. In some embodiments, asynchronous calls to remote services for handling complex processing tasks such as, for example, complex calculations involving large data sets from one or more spreadsheets of a workbook are described. The handling can include generating a job including a data set from one or more spreadsheets and an instruction directing a remote service to asynchronously execute a computationally expensive spreadsheet task. Responsive to sending the remote service a request to perform the job, a persistent job identifier (ID) associated with the job is received by the spreadsheet application and embedded in (and/or otherwise associated with) at least one or more of the spreadsheets of the workbook. The job is then asynchronously executed by the remote service and the results are accessible from any client device having access to the workbook using the embedded or associated job ID.

Abstract: Some variations provide a method of enzymatically converting biomass-derived cellulose to glucose, comprising exposing the biomass-derived cellulose to (i) cellulase enzymes, to hydrolyze the cellulose to glucose; and (ii) an external sulfur-containing compound, to deter bacterial and/or yeast contamination during cellulose hydrolysis. In some embodiments, the sulfur-containing compound includes sulfur dioxide or lignosulfonates. When the sulfur-containing compound includes lignosulfonates, the lignosulfonates may also function as an enzyme surfactant to assist hydrolysis, in addition to deterring bacterial and/or yeast growth/contamination. This method may be applied to cellulose-rich solids obtained from the AVAP® fractionation process, the GREEN POWER+® pretreatment process, or any other source of cellulose-rich solids.