Abstract: Provided is a positive electrode plate, a secondary battery, and a powered device. The positive electrode plate may be a positive electrode plate of a wound cell, and includes a waist region provided close to a waist portion and an end region provided away from the waist portion. The waist region is provided with a first positive electrode film, and the end region is provided with a second positive electrode film. The positive electrode plate may be a positive electrode plate for a laminated cell, which includes a central region provided close to a center and an edge region provided away from the center. The central region is provided with a first positive electrode film, and the edge region is provided with a second positive electrode film.

Abstract: Provided are an interaction method and apparatus in a live streaming room, and a device and a storage medium. The method comprises: in response to a trigger operation for a preset duet entry on a live streaming room page, jumping from the live streaming room page to a camera capture page, wherein a host portrait cutout corresponding to the live streaming room page is displayed on the camera capture page and a capture control is provided on the camera capture page acquiring multimedia information captured by a camera, in response to a trigger operation for the capture control on the camera capture page, wherein the multimedia information comprises an image or a video; and synthesizing the multimedia information with the host portrait cutout to obtain a duet multimedia product.

Abstract: This application provides a non-aqueous electrolyte and a preparation method thereof, and a secondary battery and an electric apparatus containing the same. The non-aqueous electrolyte contains the non-aqueous solvent and lithium ions, first cations, and first anions dissolved therein, where the first cation is a metal cation Men+ other than the lithium ion, n representing a chemical valence of the metal cation; the first anion is a tetrafluoroborate anion BF4?; mass concentration of the first cations in the non-aqueous electrolyte is D1 ppm, and mass concentration of the first anions in the non-aqueous electrolyte is D2 ppm, both based on total mass of the non-aqueous electrolyte; and the non-aqueous electrolyte satisfies that D1 is 0.1 to 1250 and that D1/D2 is 0.02 to 2. The non-aqueous electrolyte in this application enables the secondary battery to have good cycling performance, safety performance, and kinetic performance.

Abstract: A battery module includes at least two rows of battery cells stacked together along the width direction of the battery cells, the at least two rows of battery cells comprising a first row of battery cells and a second row of battery cells that are adjacent to each other. The first row of battery cells and the second row of battery cells include a plurality of battery cells in total, where some of the battery cells in the plurality of battery cells have different lengths from the remaining battery cells. Along the width direction of the battery cells, a centerline along the length direction of at least one battery cell in the first row of battery cells is not collinear with a centerline along the length direction of at least one battery cell in the second row of battery cells.

Abstract: Provided are an interaction method and apparatus in a live streaming room, a device, and a storage medium. The method comprises: in response to a trigger operation for a preset drawing entry on a live streaming room page, jumping to a graphic drawing page from the live streaming room page, a drawing trajectory set for a preset object being displayed on the graphical drawing page; when a drawing stroke on the graphic drawing page is received, matching the drawing stroke with the drawing trajectory; and if it is determined that the drawing stroke is successfully matched with the drawing trajectory, displaying prompt information about successful participation in a preset activity, the preset activity and the preset drawing entry having a correspondence.

Abstract: An open-ear earphone includes a housing, a chamber is provided inside the housing, a speaker is provided inside the chamber and divides the chamber into a front chamber and a rear chamber. The housing is provided with a first sound hole and a second sound hole. The front chamber is communicated to the outside through the first sound hole, and the rear chamber is communicated to the outside through the second sound hole. The rear chamber includes a first volume down chamber and a second volume down chamber communicated to the first volume down chamber, and the first volume down chamber is located between the speaker and the second volume down chamber. The sound wave in backward motion generated by the speaker is transmitted to the outside from the second sound hole after being reduced by the first volume down chamber and the second volume down chamber.

Abstract: An open-ear Bluetooth® earphone includes an earphone body and a support frame. The support frame is configured to be plugged into a cavum concha of a wearer. The earphone body is provided with an audio source, and the support frame is installed on the earphone body and corresponds to the audio source. When in use, the support frame is configured to be firmly plugged into the cavum concha of the wearer to allow the earphone body to be worn on the ear of the wearer. The audio source corresponds to the ear canal of the wearer through the support frame, so that the sound emitted from the audio source is transmitted into the ear canal through the support frame. The audio source is directly opposite of the ear canal through the support frame to shorten the distance between the audio source and the ear canal.

Abstract: This application provides an electrode assembly, a battery cell, a battery, and an electric apparatus, and pertains to the field of battery technologies. The electrode assembly may include a negative electrode plate and a positive electrode plate. The negative electrode plate may include a negative electrode active substance layer, and a first electrolyte storage trough may be disposed on the negative electrode active substance layer. The positive electrode plate may include a positive electrode active substance layer, the positive electrode active substance layer and the negative electrode active substance layer may be disposed opposite each other in a first direction, and a second electrolyte storage trough may be disposed on the positive electrode active substance layer, the second electrolyte storage trough and the first electrolyte storage trough being disposed opposite each other in the first direction.

Abstract: Provided are a high temperature-resistant composite nanofiltration membrane and a preparation method thereof. The high temperature-resistant composite nanofiltration membrane includes a base membrane and a polyamide membrane arranged on the base membrane; wherein the polyamide membrane is prepared from raw materials comprising: an amine, an inorganic salt, a silane additive, a polyacyl chloride, and an oil phase solvent; and the silane additive is at least one selected from the group consisting of 3-aminopropyltriethoxysilane, divinyltriaminopropyltrimethoxysilane, N-cyclohexyl-?-aminopropyltrimethoxysilane, and trimethoxy[3-(phenylamino)propyl]silane.

Abstract: A display panel and a display device are disclosed. The display panel includes a photoresist layer, a liquid crystal layer, and a total reflection layer. Liquid crystal molecules included in the liquid crystal cells have a first refractive index and a second refractive index. The first refractive index is greater than the second refractive index, and a refractive index of the total reflection units matches with the first refractive index. The display panel and the display device not only have advantages of low manufacturing cost and eye protection, but can also achieve color and dynamic display.

Abstract: The disclosure relates to compositions and methods for preventing, reducing, and/or treating scars. The compositions comprise at least one C-glycoside or derivative thereof, and the methods comprise treating skin and/or scar tissue with at least one C-glycoside or derivative thereof and at least one skin modification stimulus.

Abstract: An assembled subway station and a construction method thereof are provided. The assembled subway station includes a plurality of components combined in a ring shape, comprising a bottom plate component, two bottom corner components, two side wall components, a middle plate component, two top corner components, and a top plate component. Connection surfaces of each component are each provided with a concave-convex structure being matched with another concave-convex structure on a relevant connection surface of an adjacent component. Butt joint positions of two adjacent components are filled with sealing structures. The embedded grooves of two adjacent components are oppositely arranged, and connecting members for exerting opposite fastening forces on the two adjacent components are installed in the oppositely arranged embedded grooves.

Abstract: This application provides a touch substrate and a display device. The touch substrate comprises a touch area and a peripheral area surrounding the touch area. The touch substrate further comprises: a touch electrode and a touch signal line that are coupled to each other. At least portion of the touch electrode is located in the touch area. At least portion of the touch signal line is located in the peripheral area, the touch signal line comprises at least one corner portion, the at least one corner portion comprises a first part, a second part and a third part that are connected end to end in sequence, an extension direction of the first part is the same as an extension direction of the third part, and an extension direction of the second part intersects with the extension direction of the first part.

Abstract: A display device and a dimming device are provided. A dimming layer is located between a first polarizer and a second polarizer whose transmission axes are parallel to each other. When the display device is in a first display mode, long axes of the liquid crystal molecules distributed in the first polymer network are arranged along the second direction, and long axis of the liquid crystal molecules distributed in the second polymer network are arranged along the third direction. The third direction and the second direction respectively point to opposite sides of a normal line of the first polarizer.

Abstract: A wearable device and an airbag preparation method. The wearable device includes a watch body, an airbag, and an airbag cover. The airbag is detachably connected to an end of the watch body, so that a coverage area of the airbag for the watch body is small, thereby reserving space for installing another module on the watch body. The airbag includes a first layer structure and a second layer structure that are superposed. The first layer structure has a first cavity, the second layer structure has a second cavity, and the first cavity communicates with the second cavity.

Abstract: Embodiments of the present disclosure relate to a method for generating a face shape adjustment image, a model training method, an apparatus, and a device. The method for generating a face shape adjustment image includes: acquiring an original facial image; obtaining a face shape adjustment image corresponding to the original facial image by using a pre-trained face shape adjustment model, where the face shape adjustment model is obtained by training based on a first facial sample image, a second facial sample image, a minimum face parameter and a maximum face parameter, a face parameter corresponding to the first facial sample image is the minimum face parameter, and a face parameter corresponding to the second facial sample image is the maximum face parameter.

Abstract: An animal face style image generation method, a model training method, and a device are provided. The method includes: acquiring an original human face image; and obtaining an animal face style image corresponding to the original human face image. The animal face style image refers to an image obtained by transforming a human face on the original human face image into an animal face, the animal face style image generation model is obtained by training with a first human face sample image and a first animal face style sample image, the first animal face style sample image is generated from the first human face sample image by a pre-trained animal face generation model, and the animal face generation model is obtained by training with a second human face sample image and a first animal face sample image.

Abstract: (5R,7R,10R)-12,15-dioxo-?-selinene (PFC-37) is used in the preparation of a drug for preventing and treating a neurodegenerative disease and Parkinson's disease.

Abstract: An expression transformation method and apparatus, an electronic device, and a computer readable medium. The method comprises: acquiring a target face image (201); and inputting the target face image into a pre-trained expression transformation model to obtain an expression transformation image (202). The expression transformation model performs expression transformation on the target face image to achieve different expression transformation effects. A set of face images which are locally processed and have preset expressions displayed are used for training, so that the effect of the additional special effect can be achieved for the expression transformation image on the basis of transformation.

Abstract: A key structure includes a housing, a mounting seat, a key component, a clamping holder, a switch device, and a flexible printed circuit, where the mounting seat is mounted on the housing, the clamping holder and the key component are both mounted on the mounting seat; and the switch device is mounted on the clamping holder. The mounting seat and the clamping holder are between the switch device and the key component.