Abstract: An apparatus efficiently preparing ultrafine spherical metal powder includes a housing, a crucible and a powder collection area arranged in the housing. The turnplate arranged in the powder collection area is an inlaid structure. The part inlaid into the body part acts as an atomization plane of the turnplate. The atomization plane is provided with a concentric circular groove, and the turnplate is provided with an air hole. The apparatus is used for preparing ultrafine spherical metal powder by on-by-one droplets centrifugal atomization method, mainly combining the uniform droplet jet method and the centrifugal atomization method, which breaks through the traditional metal splitting model, makes the molten metal in a fibrous splitting, so as to efficiently prepare ultrafine spherical metal powder with narrow particle size distribution interval, high sphericity, good flowability, excellent spreadability, uniform and controllable size, no satellite droplets and suitable for industrial production.

Abstract: An apparatus includes a housing, a crucible disposed in the housing, and a collection bin. A turnplate disposed in a powder collection area is of an inlaid structure. A concentric circular groove is provided on the atomization plane. An air hole is provided in the turnplate. The present invention combines the pulsated orifice ejection method and the centrifugal atomization method, in cooperation with the turnplate structure and subjecting the turnplate surface to induction heating, so that a metal liquid is allowed to break through the split mode of traditional molten metal, achieves a fibrous split mode that can be implemented only when an atomizing medium is an aqueous or organic solution, and prepares a high-melting-point metal powder that meets requirements, and has a controllable particle size, high sphericity, no satellite droplets, and good flowability and spreadability, and is suitable for industrial production.

Abstract: Disclosed is a display substrate including a base substrate, and gate lines, data lines, common electrode lines and common electrodes on the base substrate; the gate lines and the data lines intersect to define pixel areas; the common electrodes are located in the pixel areas; the gate lines and the common electrode lines are alternately arranged one by one; each common electrode lines includes target wire segments and non-target wire segments, the target wire segments are wire segments where the common electrode lines and the data lines intersect, and the non-target wire segments are wire segments on the common electrode line except the target wire segments; and for each common electrode line, a distance between any position point on the target wire segment and a target gate line is less than a distance between the non-target wire segment and the target gate line.

Abstract: The present disclosure provides compositions, methods, kits, systems and apparatus that are useful for nucleic acid polymerization. In particular, recombinant polymerases and biologically active fragments thereof are provided that allow for nucleic acid amplification. In some aspects, the disclosure provides recombinant polymerases that yield lower systematic error rates and/or improved accuracy, when used in sequencing by synthesis reactions as compared to a control polymerase. In one aspect, the disclosure relates to recombinant polymerases useful for nucleic acid sequencing, genotyping, copy number variation analysis, paired-end sequencing and other forms of genetic analysis. In another aspect, the recombinant polymerases are useful for the amplification of nucleic acid templates during PCR, emPCR, isothermal amplification, recombinase polymerase amplification, rolling circle amplification, strand displacement amplification and proximity ligation amplification.

Abstract: There are described methods, systems, and devices for automated digestion of samples contained in multi-sample racks. The method comprises receiving the multi-sample racks on at least one of a first level and a second level of a first rack loader, the first level and the second level superposed and held within a frame; managing rack positions on the first rack loader by displacing the multi-sample racks between the first level and the second level with at least one elevator; conveying the multi-sample racks into and out of a heating chamber of a microwave digestion system from at least one of the first and second levels; and controlling sample digestion inside the heating chamber through the application of microwaves by at least one microwave generator.

Abstract: The present disclosure is related to systems and methods for image processing. The method may include obtaining a first set of image data. The method may also include generating a second set of image data by processing, based on a trained machine learning model, the first set of image data. The second set of image data may have a relatively high resolution and/or a relatively low level of artifacts with respect to the first set of image data. The method may further include generating a target image by performing a weighted fusion on the first set of image data and the second set of image data.

Abstract: A method and apparatus for training an online prediction model are provided. The method may include: acquiring an offline sample feature and an online sample feature of a user, the offline sample feature including a user portrait feature; offline training to obtain an offline recommendation model, based on the offline sample feature and the online sample feature of the user; acquiring a latest online feature of the user, and online training to obtain an online learning model based on the latest online feature of the user, the online learning model being used to adapt the latest online feature for use as an online sample feature to be input into the trained offline recommendation model; and synchronizing the offline recommendation model to online, and inputting the latest online feature output by the online learning model into the offline recommendation model to generate an online prediction model.

Abstract: A pressing-pulling device includes: a pressing-pulling bracket, wherein slotting oil cylinders are symmetrically and vertically mounted on the pressing-pulling bracket, and a piston rod of each of the slotting oil cylinders faces downwardly; a bottom end of the piston rod is connected to a connecting plate, and a through-hole is provided in a middle of the connecting plate; a continuous lifting mechanism is installed in a middle of the pressing-pulling bracket, and a slotting rod is vertically inserted into the continuous lifting mechanism; a lifting ring is installed at a top end of the slotting rod; a bottom end of the slotting rod extends downwardly through the through-hole to connect to a slotting cutter; a locking device is fixed on the connecting plate near the through-hole for fixing the slotting rod.

Abstract: Disclosed is a display substrate including a base substrate, and gate lines, data lines, common electrode lines and common electrodes on the base substrate; the gate lines and the data lines intersect to define pixel areas; the common electrodes are located in the pixel areas; the gate lines and the common electrode lines are alternately arranged one by one; each common electrode lines includes target wire segments and non-target wire segments, the target wire segments are wire segments where the common electrode lines and the data lines intersect, and the non-target wire segments are wire segments on the common electrode line except the target wire segments; and for each common electrode line, a distance between any position point on the target wire segment and a target gate line is less than a distance between the non-target wire segment and the target gate line.

Abstract: The present disclosure discloses methods, apparatuses, and electronic devices for collecting a loan, and a storage medium, relates to the field of big data technology. A method can include: acquiring information on latitude and longitude of overdue customers and longitude and debt-collectors, respectively; calculating initial paths of the debt-collectors and the overdue customers, based on the information on latitude and longitude of the overdue customers and the debt-collectors; calculating target overdue customers that the debt-collectors are responsible for and target paths of the debt-collectors and the target overdue customers that the debt-collectors are responsible for, based on the initial paths of the debt-collectors and the overdue customers; and providing the target overdue customers and the target paths to the debt-collectors, so that the debt-collectors collect loans in accordance with the target overdue customers and the target paths.

Abstract: A method for depositing particles on a surface includes receiving a plurality of particles, a particle of the plurality of particles having a polymer matrix conjugated to nucleic acid strands, exposing the plurality of particles to a solution; and applying the plurality of particles to a surface following exposing the plurality of particles to the solution, particles of the plurality of particles depositing on the surface. The solution includes a magnesium salt in a range of 30 mM to 500 mM, a potassium salt in a range of 0.8 M to 1.0 M, a buffering agent in a range of 150 mM to 500 mM, and a surfactant in a range of 0.05% to 0.5%.

Abstract: Systems and methods are provided for processing audio information. An exemplary system may include a communication interface configured to receive a plurality of audio streams obtained by multiple terminal devices. The system may also include a memory and a processor. The processor may execute instructions stored on the memory to perform operations. The operations may include beamforming the plurality of audio streams based on a spectral mask indicating signal and noise presence probabilities. The operations may also include synchronizing the beamformed audio streams and determining signal-to-noise-ratio (SNR) indicators associated with the synchronized audio streams. The operations may further include selecting a candidate audio stream based on the SNR indicators and generating a synthesis audio stream including at least a portion of the candidate audio stream.

Abstract: A brushed DC motor includes a motor shell, a stator fixed within the motor shell, an armature rotor rotatably disposed inside the motor shell and surrounding by the stator while forming a gap therebetween with magnetic field, and a brush cap connected with the motor shell by covering an installing opening of the motor shell. The brush cap includes a base layer, an electric circuit layer formed on the base layer, at least one pair of brush frames affixed thereon symmetrically, and at least one pair of brushes respectively installed in the brush frames and electrically connected with the electric circuit layer adapted to receive current and conduct to the armature rotor for driving an output end of the armature rotor to rotate with respect to the stator.

Abstract: The disclosure relates to systems and methods for magnetic resonance imaging (MRI). A method may include obtaining k-space data associated with MR signals acquired by an MR scanner. The k-space data may corresponding to a first sampling rate. The method may also include generating one or more estimated images based on the k-space data and a target neural network model. The one or more estimated images may correspond to a second sampling rate that exceeds the first sampling rate. The method may further include determining one or more target images based on the one or more estimated images and the k-space data using a compressed sensing model. The compressed sensing model may be constructed based on the one or more estimated images.

Abstract: Forms B and C of (R)—N-(4-chlorophenyl)-2-(cis-4-(6-fluoroquinolin-4-yl)cyclohexyl)propanamide are stable under the conditions of light, high temperature and high humidity.

Abstract: Provided herein are systems and methods for nucleotide incorporation reactions. The systems comprise polymerases having altered nucleotide incorporation kinetics and are linked to an energy transfer donor moiety, and nucleotide molecules linked with at least one energy transfer acceptor moiety. The donor and acceptor moieties undergo energy transfer when the polymerase and nucleotide are proximal to each other during nucleotide binding and/or nucleotide incorporation. As the donor and acceptor moieties undergo energy transfer, they generate an energy transfer signal which can be associated with nucleotide binding or incorporation. Detecting a time sequence of the generated signals, or the change in the signals, can be used to determine the order of the incorporated nucleotides, and can therefore be used to deduce the sequence of the target molecule.