Abstract: A fracturing apparatus may include a first plunger pump including a first power end and a first hydraulic end; a prime mover including a first power output shaft; and a first clutch including a first connection portion and a second connection portion. The first power end of the first plunger pump includes a first power input shaft, the first connection portion is coupled to the first power input shaft, the second connection portion is coupled to the first power output shaft of the prime mover.

Abstract: This application provides a positive electrode active material including particles A and particles B, where the particles A have a monocrystalline or monocrystalline-like structure, and the particles B are secondary particles including a plurality of primary particles. Dv50 of the particles A is less than Dv50 of the particles B, and a mass percentage of the particles A is greater than or equal to a mass percentage of the particles B, where Dv50 denotes a particle size corresponding to a cumulative volume distribution percentage of a material reaching 50%.

Abstract: A method of monitoring a magnetic orientation of a composite magnetic material injected into a rotor pole of a rotor core. The rotor pole is defined by at least one rotor cavity. The method includes injecting a magnetic composite material into the at least one rotor cavity defining the rotor pole and applying an external magnetic field to the rotor pole to magnetically orient the magnetic composite material during injection into the at least one rotor cavity.

Abstract: A method of manufacturing a semiconductor device includes forming first and second active regions; forming first to fifth gate electrodes, the second gate electrode being between the first and third gate electrodes, the fourth gate electrode being between the third and fifth gate electrodes; and selectively replacing at least one portion of at least one of the gate electrodes with an isolation dummy gate, including: replacing the first and fifth gate electrodes with first and second isolation dummy gates formed in trenches through the first and second active regions; and replacing a first portion of the third gate electrode overlying the second active region with a third isolation dummy gate formed in a first trench through the second active region, resulting in a second portion of the third gate over the first active region, and the third isolation dummy gate aligned with the second portion of the third gate.

Abstract: A fracturing apparatus includes a motor, a first plunger pump, a power supply platform, a gas turbine engine, a generator, and one or more rectifiers. At least two of the gas turbine engine, the generator, and the one or more rectifiers are arranged on the power supply platform. A first end of the generator is connected to the gas turbine engine. A second end of the generator is connected to the one or more rectifiers. The generator is configured to output a voltage to the one or more rectifiers. The one or more rectifiers are configured to provide power to the motor. The motor is configured to drive the first plunger pump.

Abstract: A rotor core mold assembly including a rotor stack and a distribution plate. The rotor stack has a top surface and at least one rotor pole defined by a plurality of rotor stack cavities. Each of the plurality of rotor stack cavities has an aspect ratio defined by a width of a respective rotor stack cavity and a longitudinal length of the rotor stack. The distribution plate has a top surface and a bottom surface removably locatable on the top surface of the rotor stack to thereby form a fluid seal. The distribution plate includes a flow channel positioned on the top surface of the distribution plate and extending through the distribution plate, an injection gate in fluid communication with the flow channel, and a plurality of secondary flow channels coupled between the injection gate and the bottom surface of the distribution plate in fluid communication with the injection gate.

Abstract: A method, an apparatus, and a system for video communications include: transmitting, from a first apparatus using a network, a first video stream of a first user to a second apparatus of a second user, wherein the first user is in video communication with the second user; receiving, from the second apparatus using the network, a second video stream of the second user; determining, by a processor, a reaction of the second user to an area of interest in the first video stream using the second video stream; and updating, in response to the reaction of the second user to the area of interest in the first video stream, a parameter for encoding the area of interest in the first video stream at the first apparatus.

Abstract: A permanent magnet rotor can include a rotor body and at least one magnet. The rotor body can include at least one rotor cavity. The at least one magnet includes, in part, Mn—Bi particles and the at least one magnet can be either a sintered magnet or a polymer bonded magnet. The at least one magnet can be located, at least partially, in the at least one rotor cavity. Further, the at least one magnet can be installed in the at least one rotor cavity after forming the at least one magnet or the at least one magnet can be formed in the at least one rotor cavity using a mold. Moreover, the polymer bonded magnet can include a composite of polymer matrix and Mn—Bi particles.

Abstract: A system and method for separating permanent magnets from a rotor for repurposing. The method includes obtaining a first rotor including a plurality of permanent magnets located in a plurality of cavities arranged in the first rotor, heating the first rotor to a first temperature, removing the permanent magnets from a respective cavity by applying a force onto the permanent magnets at the first temperature, and repurposing the permanent magnets for a secondary use. The first temperature may be greater than a glass transition temperature and less than a melting temperature. The permanent magnets may be further processed for installation into a second rotor, the processing may include grinding the one or more permanent magnets to enable installation into the second rotor, analyzing a structural integrity of the permanent magnets to determine suitability for repurposing, and may also include separating the polymer material from a magnetic material.

Abstract: An electrical busway assembly is provided. The electrical busway assembly includes a plurality of busbars having a length direction. Each busbar includes a conductor and a busbar insulator coating the conductor. The busway assembly further includes a bonding agent positioned between the plurality of busbars and bonding the plurality of busbars in the length direction. The bonding agent is configured to withstand an electromagnetic force caused by a current flowing through the plurality of busbars during a short circuit condition in the plurality of busbars. The plurality of busbars are coupled with one another without mechanical fasteners, and the busway assembly has a voltage rating in a low voltage range of 1000 Volts (V) or lower.

Abstract: A feedback control system for use with ultrasonic welding. A weld energy set point and/or a reference power curve are used by a controller to provide a power supply voltage set point and a power supply frequency set point for the power that is to be drawn by an ultrasonic weld generator. Information regarding the actual voltage and/or frequency of the drawn electrical power, and/or the frequency and magnitude of an ultrasonic wave transmitted from the generator to an applicator tool used to weld an object can be utilized by an estimator to estimate the weld energy dissipated at the weld site and/or generate a power curve for the welding operation. Using information from the estimator, the controller can determine adjustments for variables for the current and/or future welding operations. Further, welding may not commence until a clamping force exerted on the object satisfies a clamping force set point.

Abstract: A network model for determining the performance of a real-time communication application, such as a video codec and transmission of the coded data, is implemented as computer software. The network model factors in burst data packet loss in determining a performance measure. The network model uses a Hidden Markov Model on a set of data packets of a unit of data to determine the performance measure in the form a probability that all the data packets within the set are received. The measure is used to fine tune the system settings. The network model causes the real-time communication application to adjust parameters of the application for improved transmission of data packets. The adjustment of a parameter can be an increase or a decrease.

Abstract: A system for determining the performance of a video codec for real-time communication applications includes a video codec performance evaluation network model and video codec quality analyze. A set of network conditions is used to simulate certain typical real-world network conditions. A coded video stream is transmitted from the transmitting end to the receiving end under these conditions. The end-to-end latency and received video fluency are measured along with a set of existing video quality measures by a video codec performance evaluation system including a network model and a video codec quality analyzer. The decodable frame ratio, latency and video fluency are used as the performance metrics for real-time communication video quality evaluation. The video codec performance evaluation system does not send any video data over a network when it determines the real-time communication quality of the video codec.

Abstract: This invention provides methods for detecting RNAs in a biological sample while using only a small amount of sample input, e.g., less than or equal to 1 mL. The methods described herein are able to detect a large percentage of protein-coding genes having the ENSEMBL gene annotation HG38.

Abstract: The present invention provides a composition comprising at least one monomer of Formula I, at least one monomer of Formula II, and at least one alkali metal salt of Formula III and/or Formula IV The present invention also provides a process of fabricating a three-dimensional object, comprising i) dispensing a build material that comprises a model material composition and a support material composition; ii) curing the layer dispensed in step i); iii) repeating step i) and ii) so as to sequentially form a plurality of layers in a configured pattern corresponding to the shape of the object; and iv) removing the support material from the build material.

Abstract: A method for molding a magnetic material into a rotor stack, including providing a polymer melt including magnetic compound particles and a polymer binder, providing a rotor including a plurality of cavities, the rotor being arranged in a mold having a mold cavity surface, and providing a gap between the outer periphery of the rotor and the mold cavity surface. The method also includes filling a first volume of the polymer melt into the cavities of the rotor at a first pressure and filling a second volume of the polymer melt into the rotor at one or more second pressures, the one or more second pressures being less than the first pressure and above an ambient pressure.

Abstract: A rotor for an electric machine is disclosed, the rotor including a plurality of cavities filled with a magnetic material. In the disclosed rotor, the magnetic material includes Samarium-Iron-Nitrogen (Sm—Fe—N) particles, Manganese-Bismuth (Mn—Bi) particles, and a polymer binder. Performance characteristics of the magnetic material, such as following the rule of mixtures and exhibiting a linear relationship based on volume fraction of the Mn—Bi particles, is also disclosed.

Abstract: A system and method for determining the performance of a video codec for real-time communication applications. A set of network conditions is used to simulate certain typical real-world network conditions. A coded video stream is transmitted from the transmitting end to the receiving end under these conditions. The end-to-end latency and received video fluency are measured along with a set of existing video quality measures by a video codec performance evaluation system including a network model and a video codec quality analyzer. The decodable frame ratio, latency and video fluency are used as the performance metrics for real-time communication video quality evaluation. The video codec performance evaluation system does not send any video data over a network when it determines the real-time communication quality of the video codec.

Abstract: A system and method for determining the performance of a real-time communication application, such as a video codec and transmission of the coded data. The method factors in burst data packet loss in determining a performance measure. The method uses a Hidden Markov Model on a set of data packets of a unit of data to determine the performance measure in the form a probability that all the data packets within the set are received. The measure is used to fine tune the system settings. The method causes the real-time communication application to adjust parameters of the application for improved transmission of data packets. The adjustment of a parameter can be an increase or a decrease.