Abstract: Embodiments of this application provide a projection display method and an electronic device, and relate to the field of terminal technologies, to dynamically adjust, based on a quantity of source devices, a parameter of display data projected onto a destination device, so as to improve display smoothness and use experience of a user during projection. The method includes: A source device sends a projection instruction to a destination device, where the projection instruction is used to instruct to project a display interface of the source device onto the destination device for display. The source device receives a first broadcast sent by the destination device, where the first broadcast includes a quantity N of source devices that need to perform projection onto the destination device for display.

Abstract: An image processing method includes: according to position coordinates of any interpolation pixel in a target image, determining position coordinate of the interpolation pixel in an original image; calculating a two-dimensional image entropy of an (n×n) neighborhood of the interpolation pixel in the original image; when it is greater than or equal to a preset entropy threshold value, calculating a pixel value of the interpolation pixel based on all original pixels; when it is less than the preset entropy threshold, calculating gradient values in at least two edge directions within the threshold neighborhood and determining whether there is a strong-edge direction; if so, calculating the pixel value of the interpolation pixel based on a plurality of original pixels in the strong-edge direction; if not, calculating the pixel value of the interpolation pixel based on all the original pixels.

Abstract: Provided a method for processing an image, including: acquiring an interpolation image by performing interpolation processing on a to-be-processed image, wherein the interpolation image includes a plurality of interpolation pixels; acquiring, for each of the interpolation pixels, a first candidate pixel value and a second candidate pixel value by adjusting the initial pixel value of the interpolation pixel; determining a first difference between a second derivative of the first candidate pixel value and a second derivative of a pixel value of a target original pixel; determining a second difference between a second derivative of the second candidate pixel value and the second derivative of the pixel value of the target original pixel; and updating the initial pixel value of the interpolation pixel; wherein the target original pixel includes each original pixel adjacent to the interpolation pixel.

Abstract: A temporary MEMS-based locking assembly is configured to temporarily compress electrically conductive flexures and includes: a first locking structure coupled to a first portion of a MEMS conductive assembly; a second locking structure coupled to a second portion of the MEMS conductive assembly, wherein: the electrically conductive flexures are positioned between the first portion of the MEMS conductive assembly and the second portion of the MEMS conductive assembly, and the first and second locking structures are configured to engage each other upon the compression of the electrically conductive flexures to effectuate the locking of the first portion of the MEMS conductive assembly with respect to the second portion of the MEMS conductive assembly.

Abstract: A payment method applied to a merchant client device, includes receiving a first instruction for selecting a first payment method for a first order on a first selection page by a target user. In an interface of a merchant client device, an account confirmation page of a first wallet corresponding to the first payment method is displayed. A confirmation instruction sent by the target user based on the account confirmation page is received. A checkout page of the first wallet is displayed in the interface of the merchant client device. Identity verification information entered by the target user based on the checkout page is received. A first payment result page is displayed, where the first payment result page comprises at least a payment result corresponding to the first order.

Abstract: A communication protocol switching method includes that a first device communicates with a second device using a first protocol to project a screen of the first device to the second device; and when a first application in the first device is opened or a media file stored in the first device is opened, the first device switches to a second protocol to communicate with the second device and to project a display user interface of the first application or the media file to the second device, where the first application manages or plays at least one media file.

Abstract: An air conditioner includes a plurality of flat tubes, a first header, a second header, a third header and a connecting pipe. The plurality of flat tubes are configured to circulate a gas-liquid two-phase refrigerant. The first header is disposed at an end of the plurality of flat tubes. The second header is disposed at another opposite end of the plurality of flat tubes, and includes a header body and at least one flow disturbing portion. The at least one flow disturbing portion is disposed in the header body and configured to disturb a flow of the gas-liquid two-phase refrigerant in the header body. The third header is disposed at the another opposite end of the plurality of flat tubes. The connecting pipe communicates with the header body of the second header and the third header.

Abstract: A multi-axis MEMS assembly is configured to provide multi-axis movement and includes: a first in-plane MEMS actuator configured to enable movement along at least an X-axis; and a second in-plane MEMS actuator configured to enable movement along at least a Y-axis; wherein the first in-plane MEMS actuator is coupled to the second in-plane MEMS actuator.

Abstract: A package for moving a platform in six degrees of freedom, is provided. The platform may include an optoelectronic device mounted thereon. The package includes an in-plane actuator which may be a MEMS actuator and an out-of-plane actuator which may be formed of a piezoelectric element. The in-plane MEMS actuator may be mounted on the out-of-plane actuator mounted on a recess in a PCB. The in-plane MEMS actuator includes a plurality comb structures in which fingers of opposed combs overlap one another, i.e. extend past each other's ends. The out-of-plane actuator includes a central portion and a plurality of surrounding stages that are connected to the central portion. The in-plane MEMS actuator is coupled to the out-of-plane Z actuator to provide three degrees of freedom to the payload which may be an optoelectronic device included in the package.

Abstract: A MEMS imaging actuator assembly includes: a first structural assembly; a second structural assembly; and a tip-tilt displacement assembly, configured to position the first structural assembly with respect to the second structural assembly, including: one or more multi-morphic thin film actuator assemblies, and one or more motion control assemblies; wherein one of the structural assemblies is configured to mount an optical device.

Abstract: A communication protocol switching method includes that a first device communicates with a second device using a first protocol to project a screen of the first device to the second device; and when a first application in the first device is opened or a media file stored in the first device is opened, the first device switches to a second protocol to communicate with the second device and to project a display user interface of the first application or the media file to the second device, where the first application manages or plays at least one media file.

Abstract: A multi-axis MEMS assembly includes: a micro-electrical-mechanical system (MEMS) actuator configured to provide linear three-axis movement, the micro-electrical-mechanical system (MEMS) actuator including: an in-plane MEMS actuator, and an out-of-plane MEMS actuator; and an optoelectronic device coupled to the micro-electrical-mechanical system (MEMS) actuator; wherein the in-plane MEMS actuator includes an electromagnetic actuator portion.

Abstract: Provided is a method for processing images. The method includes: acquiring a plurality of original sub-images acquired by a plurality of cameras in a camera array; converting first pixel coordinates of each pixel in each original sub-image in an image coordinate system into target pixel coordinates in a target plane coordinate system; determining a region pixel value of each sub-region according to a correspondence between the target pixel coordinates of each pixel in each original sub-image and each sub-region in the target plane; and determining a spliced image in the target plane based on the region pixel value of each sub-region.

Abstract: The present disclosure relates to a power tool and a control method thereof. The power tool includes a drive assembly, a first output portion, a second output portion, a switching assembly to be operated by a user, an identification unit, a control unit, and a control assembly to be triggered by the user. The switching assembly switches one of the first output portion and the second output portion to be connected to the drive assembly, and the identification assembly identifies a working mode of the power tool. In response to a first working mode, the control unit controls the first control assembly to be in an effective state, and the control unit controls an operating state of the first output portion according to a signal input by the first control assembly; in response to a second working mode, the control unit controls the first control assembly to be in an ineffective state.

Abstract: An air conditioner includes a compressor and a heat exchanger. The heat exchanger includes a first heat exchanger, a second heat exchanger, a plurality of connectors, at least one first header, a second header, and a main air pipe assembly. A plurality of flat pipes in the second heat exchanger correspond to a plurality of flat pipes in the first heat exchanger. The plurality of connectors are arranged corresponding to the plurality of flat pipes in the first heat exchanger. The at least one first header is connected to first ends of the plurality of flat pipes in the first heat exchanger. The second header is connected to first ends of the plurality of flat pipes in the second heat exchanger. The main air pipe assembly makes the second header communicated with the compressor.

Abstract: Provided is a pig genome-wide specific sgRNA library, a preparation method therefor, and an application thereof. The sgRNA is targeted at a pig genome-wide protein-coding gene, lincRNA and/or miRNA. Specifically, an sgRNA construct has the following structure: AL-N20-AR, wherein AL is the left homology arm sequence located at the upstream of the coding sequence of a pig specific SgRNA, N20 is the coding sequence of the pig specific SgRNA, and AR is a right homology arm sequence located at the downstream of the coding sequence of the pig specific sgRNA. The sgRNA library can be used for screening functional genes of a pig or for preparing a kit.

Abstract: An image distortion processing method, including: determining a first relationship between a position of a human eye and a viewing position of the human eye on the VR screen; displaying an initially distorted image on the VR screen; determining a first feature point located at a first initial position in the initially distorted image; determining a first human eye position of the human eye in a case of viewing the first feature point located at a first target position; determining the first target position according to the first relationship and the first human eye position; determining a first target distortion parameter corresponding to the first feature point located at the first target position according to a relationship between a position of the feature point on the VR screen and a distortion parameter; and performing distortion on an image displayed on the VR screen according to the first target distortion parameter.

Abstract: Disclosed herein are compositions and methods useful for treating diseases, conditions and injuries of the heart, and/or improving cardiac function in a subject in need thereof. In some embodiments, the methods comprise administering a therapeutically effective amount of a reelin polypeptide, a functional fragment or variant thereof, or a nucleic acid that expresses a reelin polypeptide or a functional fragment or variant thereof, to the subject.

Abstract: A method of generating a piezoelectric actuator includes: forming a piezoelectric member upon a rigid substrate; and removing one or more portions of the rigid substrate to form one or more gaps in the rigid substrate, thus defining at least one deformable portion of the piezoelectric member and at least one rigid portion of the piezoelectric member.

Abstract: Provided are an image processing method, apparatus and device, and a storage medium. The image processing method comprises: acquiring a plurality of original sub-images collected by means of a plurality of cameras in a camera array; converting first pixel coordinates of each pixel in each original sub-image in an image coordinate system into target pixel coordinates in a target plane coordinate system; determining a region pixel value of each sub-region according to the correspondence between the target pixel coordinates of each pixel in each original sub-image and each sub-region in a target plane; and determining a spliced image in the target plane according to the region pixel value of each sub-region. According to the present disclosure, the algorithm is simple, and original sub-images can be quickly and accurately processed, so as to obtain a spliced image with a relatively high image quality.