Abstract: Bifuran-modified polyester, polyethylene-terephthalate-co (2,2?-bifuran-5,5?-dicarboxylate), prepared by esterifying or transesterifying a diacid component comprising from 2 to 10 mole percent 2,2?-bifuran-5,5?-dicarboxylate and a diol component with a catalyst compound comprising metal present in an amount of from about 10 to about 450 ppm and polycondensation to form the polyester wherein the polyester has an inherent viscosity of at least 0.5 g/dL, a glass transition temperature (Tg) of 82° C. or more, a semicrystalline melting peak (Tm) with ?Hf equal to or greater than 5 J/g on the second heating ramp, and melting temperature (Tm) between 229° C. and 246° C. Reinforced compositions and shaped articles comprising bifuran-modified polyethylene terephthalate and methods of their production are also disclosed.

Abstract: A downhole turbine includes a plurality of fins. The plurality of fins have an exit angle that exerts a tangential force on the fin, which imparts a torque on a hub. The fins have an adjustable exit angle that changes in response to changes in the properties of a drilling fluid. The changing exit angle changes the tangential force, which changes the torque on the hub.

Abstract: A vacuum cleaner including a vacuum motor configured to draw an air flow through an air flow path of the vacuum cleaner; a dirt separator having dirt, receptacle; a display screen; and a controller configured to control images displayed on the screen. The dirt receptacle has a closed configuration in which it can receive dirt separated from the air flow, and an open configuration in which dirt contained in the dirt receptacle can be emptied therefrom. The controller is configured to display video instructions on the screen.

Abstract: A system and method for transferring an adversarial attack involving generating a surrogate model having an architecture and a dataset that mirrors at least one aspect of a target model of a target module, wherein the surrogate model includes a plurality of classes. The method involves generating a masked version of the surrogate model having fewer classes than the surrogate model by randomly selecting at least one class of the plurality of classes for removal. The method involves attacking the masked surrogate model to create a perturbed sample. The method involves generalizing the perturbed sample for use with the target module. The method involves transferring the perturbed sample to the target module to alter an operating parameter of the target model.

Abstract: Systems, devices and methods described herein relate to endovascular devices for delivering sutures for securing grafts or other objects to patient vessels. In some embodiments, a suture includes a set of two legs having proximal ends joined to each other and elongate bodies that extend parallel to one another such that the set of two legs form a U-shaped structure. A suture delivery system can include a housing configured to contain a suture in a flattened configuration, and a deployment element having a ribbon-shaped distal portion disposed in the housing and including a set of formations, where the housing and the set of formations of the deployment element are configured to collectively constrain the suture in the flattened configuration until the suture is released through the opening of the housing.

Abstract: A vacuum cleaner with a battery unit for powering the vacuum cleaner is provided. The battery unit includes a plurality of serially connected battery cells and battery management electronics operatively coupled to the battery cells. Two enclosures are provided on either side of a central axis of the vacuum cleaner, each enclosure including a portion of the plurality of battery cells, and a portion of the battery management electronics operatively coupled to the respective portion of the plurality of the battery cells. A link strap interconnects the portions of the battery management electronics.

Abstract: Binding members for sodium channel Nav1.7 and their use in medicine including for treatment of pain or epilepsy. Binding members comprise a fusion protein containing a Nav1.7-binding peptide, e.g., venom toxin peptide or knottin (“donor diversity scaffold domain”) inserted within an antibody variable domain (“recipient diversity scaffold domain”), and a partner domain (e.g., antibody variable domain), optionally wherein the partner domain enhances specificity of binding to Nav1.7 over other sodium channels.

Abstract: A display system comprising a steerable display having a monocular field of view of at least 1 degree, positioned within a scannable field of view of at least 20 degrees, the steerable display positioned for a user. In one embodiment, the steerable display is positioned for the user's fovea.

Abstract: Provided is a storage container that includes a body that defines an interior of the storage container, and a bag contained within the interior of the storage container. The bag is constructed of an elastomer, includes an opening, and defines a bag interior configured to contain a material. The storage container further includes a material valve assembly coupled to a portion of the body. The material valve assembly is coupled to the bag and configured to selectively provide fluid communication between the bag interior and an external environment of the storage container.

Abstract: An autonomous surface cleaning apparatus includes a body defining a generally planar front surface, a drive system carried by the body and configured to move the autonomous surface cleaning apparatus across a surface, a cleaning assembly disposed at a front of the body, a rechargeable battery system, and charging contacts disposed on the front surface of the body. The apparatus further includes a receptacle configured to receive dirt collected by the cleaning assembly, the receptacle being releasably attached to the body, wherein the apparatus is arranged such that, when the receptacle is attached to the body, the receptacle is at least partially disposed within a rearward facing recess defined by the body.

Abstract: A downhole connection includes a rotating member and an independently rotating member. A solenoid is connected to the independently rotating member and a moving member is connected to the rotating member. The moving member is movable by the solenoid and connected to an actuation valve of a downhole tool on the rotating member.

Abstract: A pressure control valve for a downhole drilling system includes a choke body and a restrictor body. The choke body is installed in the bore of a housing. A fluid flow flows through an orifice in the choke body. Changing a distance between the choke body and the restrictor body changes a pressure differential uphole of the pressure control valve.

Abstract: Semicrystalline polyethylene-2,2?-bifuran-5,5?-dicarboxylate (PEBF) homopolyester or copolyester with up to 5 mole percent isophthalate or up to 2.7 mole percent terephthalate, based on the diacid component, or up to 2.5 mole percent 1,4-cyclohexanedimethanol (CHDM), based on the diol component, prepared by esterifying or transesterifying the diacid and the diol components with a catalyst including about 10 to about 50 ppm wt metal, and polycondensation, wherein the bifuran polyester has an intrinsic viscosity of at least 0.4 g/dL and a semicrystalline melting peak (Tm) with ?Hf equal to or greater than 5 J/g on the second heating ramp.

Abstract: A system for downhole communication includes a roll stabilized platform and a mud pulse generator in communication with the roll stabilized platform. The mud pulse generator generates pressure pulses in a pattern that includes encoded data. A receiver receives the pressure pulses and the encoded data is decoded. The receiver is located at any location capable of receiving pressure pulses.

Abstract: Object picking optimization is disclosed, including: receiving an image of a target object; inputting the image in a machine learning model that is configured to output a pick probability heat map corresponding to the target object; selecting a pick location on the target object based at least in part on the pick probability heat map corresponding to the target object; and causing a diverting mechanism to perform a pick operation on the target object based at least in part on the pick location.

Abstract: Pick quality determination is disclosed, including: using a pressure meter to sense a pressure associated with an airflow through a gripper mechanism of a diverting mechanism over time during a pick operation on a target object; storing the sensed pressure associated with the airflow through the gripper mechanism over time as a pressure sequence associated with the pick operation on the target object; and correlating the pressure sequence with representative pressure sequences associated with corresponding pick quality types to determine whether the pick operation on the target object was successful or not.

Abstract: A method for drilling a subterranean wellbore includes rotating a drill string in the wellbore to drill. The drill string includes a roll-stabilized housing deployed in a drill collar and survey sensors deployed in the roll-stabilized housing. Sensor measurements are acquired while the drill string is rotating. High bandwidth accelerometer measurements may be obtained by combining triaxial accelerometer measurements and gyroscopic sensor measurements. Survey parameters, including a wellbore azimuth, may be computed from the high bandwidth accelerometer measurements. Triaxial magnetometer measurements may be processed to compute an eddy current induced wellbore azimuth error which may be removed from a previously computed wellbore azimuth to obtain a corrected wellbore azimuth.

Abstract: A rotary steerable tool may include a tool body with an upper end and a lower end. Additionally, the tool body may include at least one steering assembly extending from the tool body and includes at least one steering actuator configured to extend beyond other portions of the steering assembly. Furthermore, at least one cutter may be disposed on the rotary steerable tool a distance from the at least one steering actuator.

Abstract: An exemplary shingle includes at least one coated shingle sheet defining a headlap portion and a tab portion each having opposed upper and lower surfaces. A first line of adhesive is adhered to one of the upper surface of the headlap portion and the lower surface of the tab portion, and includes a first thermally activated adhesive material. A second line of adhesive is adhered to one of the upper surface of the headlap portion and the lower surface of the tab portion, and includes a second thermally activated adhesive material having a minimum activation temperature less than a minimum activation temperature of the first thermally activated adhesive material.

Abstract: There is provided an energy capture system. The system may comprise one or more rotor blades or solar panels and a compressor. The compressor is configured to be driven by the one or more rotor blades or solar panels to draw gas and to compress the gas, thereby producing a compressed material. The system further comprises a pressure receiver coupled to an output of the compressor and configured to receive the compressed material from the compressor. The system further comprises an energy recovery unit coupled to the pressure receiver and configured to receive the compressed material from the pressure receiver. The energy recovery unit is configured to generate mechanical and/or electrical energy using the compressed material.