Abstract: A method for manufacturing a solar cell, a method for manufacturing a monocrystalline silicon wafer and a photovoltaic module. The method for manufacturing a monocrystalline silicon wafer includes: providing a monocrystalline silicon rod; squaring the monocrystalline silicon rod to form a quasi-square silicon rod with quasi-square cross-section having an arc, a length of the arc being not less than 15 mm; slicing the quasi-square silicon rod to form at least one quasi-square silicon wafer having the arc. The method for manufacturing at least one solar cell includes: using the method described above to obtain a quasi-square silicon wafer having an arc; forming a first solar cell by processing the quasi-square silicon wafer; scribing the first solar cell to obtain a square-shaped sub-solar cell and at least one strip-shaped sub-solar cell. The above methods improve the utilization rate of the monocrystalline silicon rod and reduce production cost.

Abstract: An electronic device may include a lenticular display. The lenticular display may have a lenticular lens film formed over an array of pixels. A plurality of lenticular lenses may extend across the length of the display. The lenticular lenses may be configured to enable stereoscopic viewing of the display such that a viewer perceives three-dimensional images. Crosstalk between viewing zones and disparity between images received from different viewing zones may result in disparity-caused shifts in images perceived by viewer of the lenticular display. To mitigate these disparity-caused shifts, compensation circuitry may be included in the display pipeline circuitry. The compensation circuitry may include stored disparity-caused shift calibration information that is used for the compensation. The stored disparity-caused shift calibration information may be a polynomial function that outputs a magnitude of disparity-caused shift for a given pixel location.

Abstract: A data management system (DMS) may receive an indication of a configuration for a quorum-based authorization (QAuth) policy that controls interactions between two or more users and a security cloud service of the DMS. The configuration may include a policy scope for the QAuth policy, protected actions that trigger the QAuth policy, and compute objects to which the QAuth policy is assigned. The DMS may receive an instruction to assign a set of role-based access control (RBAC) permissions associated with the QAuth policy to a first user. The DMS may receive a request to perform a protected action on at least one compute object to which the QAuth policy is assigned. In response to the request, the DMS may trigger a two-person rule (TPR) enforcement mechanism of the QAuth policy by requesting approval from the first user with the set of RBAC permissions.

Abstract: A thermal-power power electronic direct-hung energy-storage plant backup power system includes a thermal-power grid connection startup/standby unit, a power electronic energy-storage switching unit and a thermal-power plant unit. The thermal-power grid connection startup/standby unit is connected to the power electronic energy-storage switching unit and the thermal-power plant unit, respectively. The power electronic energy-storage switching unit is connected to the thermal-power plant unit.

Abstract: A multi-channel visible light communication system includes a carrier board and a plurality of light-emitting device stacks. The light-emitting device stacks are arranged over the carrier board. Each of the light-emitting device stacks includes a first light-emitting device, a second light-emitting device and a first adhesive layer. The second light-emitting device is disposed over the first light-emitting device. The first adhesive layer is disposed between the first light-emitting device and the second light-emitting device. The first adhesive layer includes a first metasurface. The first metasurface is configured to pass a first color light emitted from the first light-emitting device and reflect a second color light emitted from the second light-emitting device.

Abstract: Provided are a mixed reality display method, a mixed reality device, and a storage medium. The method includes: after receiving a mixed display signal, tracking the eyeballs of a user by means of an eyeball tracker, and determining a gaze point of the user on a display screen; determining, according to a correspondence between the gaze point and a sub-display region in the display screen, the sub-display region the user gazes; determining at least one first image sensor according to a correspondence between the sub-display region and an image sensor in an image sensor array, and adjusting the at least one first image sensor; and superimposing and rendering an environment image output by the image sensor array and a virtual image, and obtaining and displaying an MR image.

Abstract: Disclosed in the present application are a display apparatus and a processing method. According to the method, a data stream from the external device in connection with the display apparatus is received; a device information frame in the data stream is obtained, where the device information frame is a data frame generated by the external device according to a basic transmission protocol between the external device and the display apparatus; marker bits in the device information frame are traversed; in response to the external device supporting the automatic control protocol, a play mode is switched according to usage scenario information added in the data stream; and in response to the external device not supporting the automatic control protocol, a play mode is switched according to a device type of the external device.

Abstract: Disclosed are emulsion gel with both a freshness indication and a low migration rate, and a preparation method therefor. Lipase and organic acid are used and subjected to hydrophobic modification of anthocyanins to obtain acylated anthocyanins, the acylated anthocyanins and oil-phase gel are then dissolved in vegetable oil to form an oil phase, while a sodium alginate aqueous solution is used as a water phase, the oil phase and the water phase are mixed and subjected to high-speed shearing, and calcium carbonate and glucono-?-lactone are finally added for high-speed shearing to form emulsion gel. The emulsion gel prepared in the present disclosure has both a freshness indication and a low migration rate, and the preparation method of the present disclosure is simple, green, pollution-free and low energy consumption.

Abstract: The invention belongs to the field of polymers, and relates to biaxially oriented polypropylene dielectric film, a modified polypropylene material and use thereof. The preparation raw materials of the biaxially oriented polypropylene dielectric film comprise a modified polypropylene grafted with an alkenyl-containing functional monomer. The modified polypropylene grafted with an alkenyl-containing functional monomer comprises a structural unit derived from polypropylene as a matrix phase and a structural unit derived from an alkenyl-containing functional monomer as a dispersion phase. The ash content of the modified polypropylene grafted with an alkenyl-containing functional monomer is less than 50 ppm.

Abstract: Provided in the present disclosure is an antibody or fragment thereof against a human growth and differentiation factor 15 (GDF15). Further provided in the present disclosure is the use of the antibody or fragment thereof in the preparation of a drug for treating diseases or conditions. The antibody or fragment thereof provided in the present disclosure can bind to human GDF15 with high affinity and specificity, blocks the interaction of GDF15 with receptor GFRAL thereof, and has a longer half-life period in vivo in comparison with antibodies of the same kind.

Abstract: An error correction method and device for a line structured light 3D camera. The method comprises: placing a 3D calibration plate at different positions in the field of view of the 3D camera, and allowing a relative motion to scan the 3D calibration plate to obtain multiple sets of point cloud data at different positions; processing the point cloud data and calculating corner coordinates of the 3D calibration plate corresponding to each set of point cloud data; constructing an error correction model by using an inclination angle, caused by an error, between a straight line along which the relative motion direction lies and a laser plane of the 3D camera as an error model correction parameter; calculating error correction model parameters according to a space vector constraint relationship between corner points; and applying the model to the point cloud data of a measured object to obtain distortion-free point cloud data.

Abstract: The present disclosure provides an annular water curtain combined water-jet guided laser machining device and method of using the same. The annular water curtain combined water-jet guided laser machining device includes a laser-water coupling device, an annular water jet device, a nozzle, and an annular nozzle. The nozzle is arranged at a lower end of the laser-water coupling device. The annular nozzle is arranged on the annular water jet device. The nozzle is coaxially arranged in the annular nozzle. The laser-water coupling device is used for coupling a laser beam with high-pressure water and spraying a laser guiding water jet from the nozzle. The annular water jet device is used for spraying high-pressure water from the annular nozzle to form an annular water curtain surrounding the laser guiding water jet. It is mainly used for precision hot machining such as cutting, punching and grooving.

Abstract: A method and device for configuring zones of a Zoned Namespace (ZNS) Solid State Drive (SSD) are provided. The method includes determining types of sizes of zones into which storage space of the ZNS SSD is to be divided and a number of zones having each type of size, and sending information indicating the types of the sizes of the zones and the number of zones having each type of size to the ZNS SSD such that the storage space of the ZNS SSD is divided into zones having different sizes.

Abstract: A method for controlling carbide network in a bearing steel wire rod by controlling cooling and rolling, comprises the following steps: rapidly rolling a bar to a wire rod and spinning it into a loose coil, controlling the rolling temperature at 780° C.-880° C.; and the spinning temperature at 750° C.-850° C.; carrying out on-line controlling cooling of continuous loose coils using EDC water bath austempering cooling process, controlling the cooling rate at 2.0° C./s-10° C./s, and controlling the final cooling temperature within 620-630° C.; after EDC water bath austempering cooling, using slow cooling under a cover, and the temperature is controlled to be 400° C.-500° C. when being removed out of the cover; after slow cooling, collecting coils, and cooling in air to the room temperature.

Abstract: An arc additive apparatus, a control method for an arc additive apparatus, and a storage medium are disclosed. The arc additive apparatus includes: an additive welding gun, configured to melt a wire to perform additive manufacturing on a workpiece to be machined; a mechanical vibration device, arranged below the workpiece; an ultrasonic auxiliary device, arranged at a side of the additive welding gun; and a control device, configured to control the ultrasonic auxiliary device to form an ultrasonic field below the additive welding gun, and to control, when welding at a position where additive manufacturing is to be performed by the additive welding gun, the mechanical vibration device to perform a mechanical vibration in different modes separately during and at the end of a welding process of the additive welding gun.

Abstract: The present invention relates to a rare earth halide scintillating material. The material has a general chemical formula La1-xCexBr3+y, wherein 0.001x1, and 0.0001y0.1. The rare earth halide scintillating material involved in the present invention has excellent scintillation properties of high light output, high energy resolution, and fast decay.

Abstract: The present invention relates to methods for determining the quantity of an analyte in sample using lateral flow strips comprising highly-doped upconversion nanoparticles.

Abstract: A battery pack comprises a first battery module, a second battery module and at least one connecting piece. The first battery module has a first side plate and a first side beam portion arranged on the first side plate. The second battery module is adjacent to the first battery module in a first direction. The second battery module has a second side plate and a second side beam portion arranged on the second side plate. The first side beam portion and the second side beam portion are at least partially longitudinally overlapped in an installation position. The at least one connecting piece passes through the first side beam portion and the second side beam portion to form a first side beam.

Abstract: Shaded bid values may be determined and/or submitted to one or more auction modules for participation in auctions. Auction information including at least one of impression indications associated with the auctions, sets of features associated with the auctions, the shaded bid values associated with the auctions, etc. may be stored in a database. A machine learning model may be trained using the auction information to generate a first machine learning model with feature parameters associated with features. A bid request, indicative of a second set of features, may be received. The first machine learning model may be used to determine win probabilities and/or expected bid surpluses associated with multiple shaded bid values based upon one or more feature parameters, of the feature parameters, associated with the second set of features. A shaded bid value for submission may be determined based upon the win probabilities and/or the expected bid surpluses.