Abstract: A display substrate, a display panel and a display device, including: a first base substrate, a first polarizer located on one side of the first base substrate, a data line located on a side, away from the first polarizer, of the first base substrate, and the extension direction of the data line is substantially perpendicular to the absorption axis of the first polarizer.

Abstract: This application provides a shooting method and an electronic device. The method includes: The electronic device enables a camera application; and after detecting a video recording operation, the electronic device displays a preview image on a recording interface and highlights a subject image of a target shot subject, where the preview image and the subject image are obtained through processing based on a raw image, the target shot subject is at a target position on the subject image, and a viewfinder range of the subject image is within a viewfinder range of the preview image. In this way, a user only needs to keep the target shot subject within the viewfinder range of the preview image, so that video recording can be performed without requiring real-time and precise adjustment of a position of the target shot subject.

Abstract: A bowl-shaped permanent magnet brushless direct-current motor, including a bowl-shaped stator core and a plurality of permanent magnets; wherein, the bowl-shaped stator core includes a stator yoke portion and a plurality of bent teeth; a height difference exists between a tooth shoe of the bent tooth and a plane on which the stator yoke portion is located, and the tooth shoe of the bent tooth is located at the same height as the permanent magnet in an axial direction, so that an armature magnetic flux path is located at the same height as a permanent magnet excitation magnetic flux path, thereby implementing an unobstructed magnetic flux path.

Abstract: A rolling method using corrugated rolls and a rolling system are provided. The method includes billet preparation, first-pass rolling, second-pass rolling, and annealing. The billet preparation includes: stacking a cladding plate on a base plate to obtain a bimetallic laminated plate blank. The first-pass rolling includes: feeding the bimetallic laminated plate blank between two spaced-apart corrugated rolls for rolling to form a first bimetallic laminated plate. The second-pass rolling includes: feeding the first bimetallic laminated plate between two spaced-apart flat rolls for rolling to form a second bimetallic laminated plate. The annealing includes: performing annealing on the second bimetallic laminated plate.

Abstract: Disclosed in the present application are a message processing method and apparatus, and a device and a medium. The method comprises: when a user uses a translate-while-writing function by means of instant messaging software, in response to inputting a message original text in an input box, displaying, in a translation area, a message translation corresponding to the message original text; after the user triggers a first preset operation of using the translation, displaying the message translation in the input box; and after the user triggers a second preset operation of revoking the use of the translation, displaying the message original text in the input box.

Abstract: The present invention relates to a stator of a rotating electric machine, including: a stator core having a plurality of slots; and a stator coil configured by connecting a plurality of conductor segments including: one or more first-type conductor segments each having a conductor and a first sheath part surrounding and insulating an outer surface of the conductor; and one or more second-type conductor segments each having the conductor, the first sheath part, and a second sheath part surrounding and insulating a part of an outer surface of the first sheath part, wherein each of the conductor segments includes two insertion parts configured to be inserted into different slots among the plurality of slots; a crown part connecting respective first ends of the two insertion parts; and welding parts extending from respective second ends of the two insertion parts to be connected by welding, and wherein the second-type conductor segment is disposed in a section having a relatively high voltage distribution ratio.

Abstract: A heat exchanger and a heat exchange system. The heat exchanger includes two heat exchange units, wherein each of the two heat exchange units includes a plurality of heat exchange flat pipes spaced from each other and a collecting pipe in communication with the heat exchange flat pipes, and the heat exchange flat pipes of the two heat exchange units are alternately arranged; and each of the heat exchange flat pipes includes a runner reentering along a length of a corresponding heat exchange flat pipe, an inlet and an outlet are provided at the same end of the corresponding heat exchange flat pipe, the heat exchange units include two collecting pipes, the collecting pipes are configured for communicating the inlet and the outlet, and the two collecting pipes of the same heat exchange unit are disposed at two opposite sides of the heat exchanger.

Abstract: A routing-policy-based global user compliance access method and an apparatus are provided. The method includes steps of: initiating, by a user, a login request to a unified user gateway if there is a user login behavior; sending, by an authentication unit, an authenticated user request to a local user center for processing, and to the global user center for global query if the user is a non-local user; initiating, by the user, a business request to the unified user gateway if there is a user business operation behavior; routing the request to an application program interface after being passed by the authentication unit; sending, by the application program interface, the business request to the local user center for business processing, and to a global business center for routing policy query and redirecting to the remote user center to which the user belongs if the user is the non-local user.

Abstract: Europium doped tin perovskites useful in the fabrication of optoelectronic devices exhibiting improved stability and high-power conversion efficiencies and perovskite precursor solutions used to prepare the europium doped tin perovskite, wherein the europium doped tin perovskite can be represented by Formula 1: (A+)(Sn2+)(X?)3·m[(Eu2+)(Y?)2]??1 wherein m is 0.001-0.05; X? for each instance is independently F?, Cl?, Br?, or I?; Y? for each instance is independently F?, Cl?, Br?, or I?; and A+ is Cs+, Rb+, CH3NH3+, CH3CH2NH3+, H(C?NH2)NH2+, Me(C?NH2)NH2+, or a mixture thereof.

Abstract: Embodiments of this application disclose a packaging module and an electronic device. Both a first surface and a second surface of a PCB in the packaging module are covered with a molding layer, a conductive pin is electrically connected to the PCB, the conductive pin is packaged inside the molding layer along a stacking direction of the PCB and the molding layer, and the conductive pin is partially exposed on an outer surface of the molding layer. When the packaging module performs electrical interaction with another element, the PCB outputs or inputs an electrical signal by using the conductive pin. In this way, there is no need to reserve a through hole on a packaging side of the packaging module, the packaging module may be arranged at a position close to a chip, and there are short wires between the packaging module and the chip.

Abstract: This application provides a planar transformer and an active circuit, applied to a telecommunications device and a communications power supply in fields such as a 5G mobile communications technology and cloud computing. The planar transformer includes a winding structure and a magnetic core structure. The winding structure includes a primary-side winding and a secondary-side winding. The magnetic core structure includes a first magnet part, a second magnet part, and a plurality of magnetic cylinders. The plurality of magnetic cylinders are located between the first magnet part and the second magnet part. The primary-side winding is wound around M magnetic cylinders in the plurality of magnetic cylinders, wherein M is a positive integer equal to or greater than three (3). A cross-sectional area of at least one of the M magnetic cylinders is different from a cross-sectional area of another magnetic cylinder.

Abstract: A power supply apparatus includes a first power module, a second power module, an energy storage module, and a controller. An output terminal of the first power module is connected in parallel to an output terminal of the second power module, which is then connected to a load, and load dynamic response performance of the second power module is better than load dynamic response performance of the first power module. The energy storage module is connected to the output terminal of the first power module and connected between a midpoint of the load and a reference ground. The energy storage module is configured to store electric energy and supply power to the load. The controller is configured to, in response to the load being in a dynamic change status, control the second power module to supply power to the energy storage module.

Abstract: A scalable electric photovoltaic panel power-generation system is provided. The system includes components such as a stacked installation structure for photovoltaic panels, a scalable electric mechanism, a remote-control module, a clutch structure, an ACC linkage module, and a ball free slide rail. Single control or group control can be achieved through wireless remote control to control the expansion and contraction of the photovoltaic panels; the clutch structure supports electric/manual dual-mode adjustment, automatic locking after electric retraction, and emergency operation when manually pushed back; linkage with ACC signal to ensure automatic return of a carrier upon startup; the ball free slide rail design is suitable for harsh environments, and a motion mechanism is separated from the photovoltaic panel to avoid damage caused by pulling. This system is easy to install and has strong wind resistance, suitable for various scenarios such as RVs and outdoor operations.

Abstract: Compositions and methods are provided for the introduction and the regulated expression of genes in plants. Compositions include promoter constructs that provide a level of activity useful for the regulated expression of site-specific recombinases, while avoiding premature excision. Further provided are isolated polynucleotides encoding novel babyboom polypeptides, expression cassettes, and plants comprising the same. Methods for the introduction of genes into plants are provided, including methods for plastid transformation and methods for the transformation of tissues from mature seeds and leaves.

Abstract: Compounds having general formula I, a method for preparing same, a pharmaceutical composition thereof, and use thereof are provided. Specifically, a compound having a structure represented by general formula I, and a racemate, an R-isomer, an S-isomer and a pharmaceutically acceptable salt thereof, or a mixture thereof are provided. The compound promotes transcription factor EB (TFEB) nuclear translocation and lysosome generation, and can be used for preventing, treating, or assisting in treating various diseases related to lysosome dysfunction and biosynthesis insufficiency, especially neurodegenerative diseases caused by the accumulation of intracerebral pathological proteins (e.g., ?-amyloid protein and ?-synuclein), such as Alzheimer's disease (AD) and Parkinson's disease (PD).

Abstract: An electric lifting photovoltaic panel power generation device is provided. The device includes a support frame component, a lifting component, and a photovoltaic panel fixing component. The lifting component and the photovoltaic panel fixing component are both provided on the support frame component. The photovoltaic panel fixing component can be lifted and lowered from 0° to 60° by the lifting component with the support frame component as a reference point. The lifting component is provided on a U-shaped piece, and the lifting component is connected to a receiver. The photovoltaic panel fixing component includes a bottom fixing L-shaped plate, a L-shaped plate, a U-shaped groove plate and other components. The fixation and lifting of the photovoltaic panel are achieved through cooperation of each component. The device has remote control electric lifting function, which can be controlled in single or multiple groups.

Abstract: In an embodiment, a method comprises: receiving bands of power spectra of an input audio signal and a microphone covariance, and for each band: estimating, using a classifier, respective probabilities of speech and noise; estimating, using a directionality model, a set of means for speech and noise, or a set of means and covariances for speech and noise, based on the microphone covariance for the band and the probabilities; estimating, using a level model, a mean and covariance of noise power based on the probabilities and the power spectra; determining a first noise suppression gain based on the directionality model; determining a second noise suppression gain based on the level model; selecting the first or second noise suppression gain or their sum based on a signal-to-noise ratio of the input audio signal; and scaling a time-frequency representation of the input signal by the selected noise suppression gain.

Abstract: A recombinant engineering bacterium for improving a yield of a recombinant human albumin is provided, which relates to the field of biological chemistry, particularly to the fields of gene engineering technologies and microorganisms. Targeted knockout is conducted on one or more genes of CCW14 gene, EMW1 gene, and PUN1 gene by utilizing a CRISPR-Cas9 gene editing technology, and/or one or more genes of EXG1 gene and SPR1 gene are over-expressed and integrated into a strain of the recombinant engineering bacterium, so as to improve the expression level of the recombinant human albumin.

Abstract: This disclosure provides GPU computational resource scheduling methods and apparatuses. In an implementation, a method includes: in response to a target computing task created in a computing cluster, determining a task type of the target computing task. If the target computing task is a first-type computing task, scheduling, for running, the target computing task to a first GPU hardware that has remaining computational resources satisfying a computational demand of the target computing task in the computing cluster. In response to a first indication indicating that is reported by a first computing node integrated with the first GPU hardware and that indicates that the first-type computing task exclusively occupies computational resources of the first GPU hardware, rescheduling, for running to a second GPU hardware that has remaining computational resources satisfying a computational demand of the second-type computing task in the computing cluster.