Abstract: A method for replacing an identity certificate in a blockchain network includes a service subnet, a consensus subnet, and a routing layer used for isolating the service subnet from the consensus subnet. The method includes: receiving a root certificate replacement notification transmitted by a certificate authentication center; obtaining a public key corresponding to the certificate authentication center; verifying the root certificate replacement notification by using the obtained public key; forwarding the root certificate replacement notification to a consensus node in the consensus subnet after the validation succeeds, so that the consensus node records the root certificate replacement notification into a latest data block after a consensus on the root certificate replacement notification is reached; and requesting, when the data block is received, the certificate authentication center to replace an identity certificate.

Abstract: Provided are a display substrate and a preparation method thereof, and a display apparatus. The display substrate includes a display area, a mounting hole located in the display area, and an encapsulation region located between the display area and the mounting hole. The encapsulation region includes an insulating layer, an encapsulation pixel definition layer arranged on the insulating layer, and a partition structure layer arranged on the encapsulation pixel definition layer. The encapsulation pixel definition layer includes multiple spaced protrusions, the partition structure layer includes multiple spaced columns, the columns are arranged on the protrusions, a functional layer is arranged on the multiple spaced columns, and the functional layer is broken by the columns.

Abstract: The present disclosure discloses an OLED package structure, a display panel and a method for preparing a package structure. The OLED package structure includes a substrate, an OLED disposed on the substrate, and a reinforcement hole disposed on at least one of the substrate and the OLED and extending along a side of the OLED towards the substrate; and an encapsulation layer covering the OLED, and at least a portion of the encapsulation layer extending into the reinforcement hole. Therefore, the reliability of the package structure can be increased, the adhesive strength of the package layer can be increased, peeling or package failure can be prevented, and the service life of the package structure can be improved.

Abstract: Disclosed are a method and system for generating a data analysis report of a multi-parameter monitoring device. The method includes: receiving, by an application server, multi-parameter data transmitted in real time by the multi-parameter monitoring device, and storing the received multi-parameter data in a database server; the application server receiving a report generation instruction transmitted by a client, the instruction including a client identifier used for indicating a permission of the client; if the permission is a first mode permission, transmitting the multi-parameter data to the client, to allow the client to process the multi-parameter data, so as to generate a multi-parameter analysis report and a report attachment; and if the permission is a second mode permission, the application server processing the multi-parameter data to generate the multi-parameter analysis report and the report attachment, and transmitting the multi-parameter analysis report and the report attachment to the client.

Abstract: An encapsulation structure, an electronic apparatus, and an encapsulation method are provided. The encapsulation structure includes: a base substrate, an organic encapsulation layer and a barrier dam that are on the base substrate. The barrier dam is disposed outside the organic encapsulation layer; and the barrier dam includes an upper surface away from the base substrate and a side surface facing the organic encapsulation layer, and at least one of the upper surface and the side surface includes a groove and a protrusion.

Abstract: Provided are a display substrate, a method for manufacturing the display substrate, and a display device. The display substrate includes a display area, the display area including an opening area and an effective display area outside the opening area, wherein the display substrate includes: an array structure layer located in the effective display area; an isolation structure provided on a surface of the array structure layer surrounding the opening area, wherein the isolation structure has a first sidewall with an slope angle of greater than or equal to 90°; a first inorganic thin film covering the isolation structure.

Abstract: The present disclosure provides an organic light-emitting display panel, a method of manufacturing the organic light-emitting display panel, and a display apparatus. The organic light-emitting display panel includes: a substrate having an opening passing through the substrate; a pixel array disposed on the substrate and including a plurality of pixels; an isolation part disposed between the plurality of pixels and the opening and surrounding the opening, wherein the isolation part includes: a first layer disposed on the substrate, wherein the first layer includes a first portion and a second portion which are sequentially stacked in a direction away from the substrate, and an orthogonal projection of the first portion on the substrate falls within an orthogonal projection of the second portion on the substrate; and a second layer disposed on a surface of the first layer away from the substrate.

Abstract: The present disclosure discloses an OLED package structure, a display panel and a method for preparing a package structure. The OLED package structure includes a substrate, an OLED disposed on the substrate, and a reinforcement hole disposed on at least one of the substrate and the OLED and extending along a side of the OLED towards the substrate; and an encapsulation layer covering the OLED, and at least a portion of the encapsulation layer extending into the reinforcement hole. Therefore, the reliability of the package structure can be increased, the adhesive strength of the package layer can be increased, peeling or package failure can be prevented, and the service life of the package structure can be improved.

Abstract: An organic light emitting component, including a substrate, an intermediate structure layer disposed on the substrate. The intermediate structure layer includes a display area and a non-display area at a periphery of the display area. The intermediate structure layer further includes a planarization layer, and an anti-shrinkage stop structure disposed at the non-display area and a display structure portion disposed at the display area are both disposed on the planarization layer and spaced apart from each other. The organic light emitting component includes a thin film encapsulation structure layer disposed on the surface of the intermediate structure layer facing away from the substrate. The anti-shrinkage stop structure is disposed between the thin film encapsulation structure layer and the planarization layer, and a free end of the anti-shrinkage stop structure extends into the thin film encapsulation structure layer.

Abstract: A control method for a continuously variable valve lift mechanism includes: controlling a continuously variable valve lift mechanism to enter a limp mode when the continuously variable valve lift mechanism fails and disables an automatic valve lift changing function; driving and forcing the continuously variable valve lift mechanism to move to a maximum lift position; and triggering a self locking function to self lock the continuously variable valve lift mechanism at the maximum lift position when the continuously variable valve lift mechanism reaches the maximum lift position. A control system for a continuously variable valve lift mechanism, and a vehicle are also provided.

Abstract: A two-channel burner includes a pulverized coal supply mechanism, a transition channel, an inner secondary air guide tube, an outer secondary air guide tube, a combustion stabilizing chamber, and a flow smoothing chamber. The outer secondary air guide tube, the combustion stabilizing chamber, and the flow smoothing chamber are sequentially connected to form a burner body. The pulverized coal supply mechanism passes through an interior of the burner body. The transition channel is fitted over the pulverized coal supply mechanism. The inner secondary air guide tube is disposed between the transition channel and the outer secondary air guide tube and forms an inner secondary air passage together with the transition channel, and forms an outer secondary air passage together with the outer secondary air guide tube. An outlet end of the inner secondary air guide tube is formed to have a flared opening.

Abstract: Methods and systems for eccentric load error correction are disclosed. A plurality of weighing data sets for a weight having a mass value are obtained, where the weight is loaded at different positions on a weighing platform of a weighing device. Differences between each of the weighing data sets and the average value of the plurality of weighing data sets or the mass value of the weight are calculated. Sensor correction coefficients are calculated and updated when the maximum absolute value of the differences exceeds a pre-set threshold. The weighing data sets are updated. The above steps are repeated until the absolute values of all the differences are less than the pre-set threshold.

Abstract: A method for generating encoded depth data includes receiving digital fringe projection (DFP) data corresponding to a three-dimensional structure of a physical object, and generating first and second fringe encodings for a first predetermined wavelength based on the DFP data at a first coordinate. The method further includes generating third and fourth fringe encodings for a second predetermined wavelength based on the DFP data at the first coordinate, the second wavelength being longer than the first wavelength, and generating a combined fringe encoding based on the third fringe encoding and the fourth fringe encoding. The method further includes storing the first, second, and combined fringe encoding data in a pixel of two-dimensional image data at a pixel coordinate in the two-dimensional image data corresponding to the first coordinate.

Abstract: The present disclosure provides an OLED display motherboard and a method for manufacturing the same, a method for manufacturing the OLED display panel, and an OLED display device thereof. The OLED display motherboard includes a base substrate having a display region and a non-display region surrounding the display region, a TFT and an OLED device located within the display region of the base substrate, at least two crack stop slits located within the non-display region of the base substrate, an extending direction of the crack stop slit being the same as an extending direction of an edge of the display region of the base substrate, and adjacent crack stop slits being separated by a crack stop slit step, and an encapsulation layer covering the crack stop slit and the OLED device. A portion of the encapsulation layer has a non-uniform thickness.

Abstract: The present disclosure provides a display panel, a method for manufacturing the display panel, and an electronic device. The display panel includes a display functional layer, an antenna functional layer on a back side of the display functional layer, and a magnetic field absorption layer on a side, close to the display functional layer, of the antenna functional layer, or on a side, away from the display functional layer, of the antenna functional layer. At least one antenna structure of the antenna functional layer includes a first substrate, a power receiving coil on a side, away from the display functional layer, of the first substrate, and a first flat layer on a side, away from the first substrate, of the power receiving coil. An orthographic projection of the power receiving coil on a reference plane is within an orthographic projection of the magnetic field absorption layer on the reference plane.

Abstract: The present disclosure provides a display panel, a display device and a method for manufacturing a display panel. The display panel includes: a base, wherein the base includes a plurality of island regions and at least one perforated region, and the perforated region has an opening that penetrate through the base; and pixel units disposed in the island regions and an elastic filling layer disposed in each of the at least one perforated region.

Abstract: Systems, apparatuses, and methods for converting data to a tiling format when implementing convolutional neural networks are disclosed. A system includes at least a memory, a cache, a processor, and a plurality of compute units. The memory stores a first buffer and a second buffer in a linear format, where the first buffer stores convolutional filter data and the second buffer stores image data. The processor converts the first and second buffers from the linear format to third and fourth buffers, respectively, in a tiling format. The plurality of compute units load the tiling-formatted data from the third and fourth buffers in memory to the cache and then perform a convolutional filter operation on the tiling-formatted data. The system generates a classification of a first dataset based on a result of the convolutional filter operation.

Abstract: The present disclosure provides a display panel, a display device, and a manufacturing method. The display panel includes: a substrate including a display area and a non-display area and having a first groove in the non-display area; a driver circuit layer on a side of the display area of the substrate; a display function layer on a side of the driving circuit layer away from the substrate; an encapsulation layer on a side of the display function layer away from the driver circuit layer, the encapsulation layer including an inorganic encapsulation layer extending to the non-display area, and a part of the inorganic encapsulation layer being in the first groove; and a dam on the non-display area, an orthographic projection of the dam on the substrate being between the first groove and the display area, and the dam being covered by the inorganic encapsulation layer.

Abstract: A discharge flow rate of a loss-in-weight scale is controlled by continuously changing control outputs to save the time necessary for data stabilization. A curve relating the discharge flow rate and the control output is obtained by using the functional relationship between the control output and time and the functional relationship between the material weight and time. The discharge flow rate can be precisely controlled by directly selecting or inputting a value of the control output, to achieve the objectives of direct controlling and of avoiding the time for data stabilization.

Abstract: A multi-material inspection system and velocity measurement method of critically refracted longitudinal wave based on single-angle wedges belong to the field of nondestructive testing of high-end equipment. The method includes the following steps: designing a transmitting wedge and a receiving wedge with the same inclination angle, and building phased array ultrasonic-based inspection systems of critically refracted longitudinal wave; estimating a longitudinal wave velocity range of a material to be tested, calculating and optimizing a phased array ultrasonic delay law, and building a relation between a longitudinal wave velocity and an amplitude of critically refracted longitudinal wave; reading and interpolating the arrival time of a received signal, and calculating a longitudinal wave velocity of the material to be tested; determining an optimal delay law, and exciting and receiving a critically refracted longitudinal wave.