Abstract: Aspects of the disclosure provide methods and apparatuses for mesh coding (encoding and/or decoding). In some examples, an apparatus for coding mesh includes processing circuitry. The processing circuitry decodes, using a point cloud compression (PCC) decoder and from a bitstream, a point cloud that includes first points corresponding to vertices in a three dimensional (3D) mesh frame. The 3D mesh frame represents a surface of an object with polygons. The processing circuitry decodes, from the bitstream, first connectivity information of the 3D mesh frame. The first connectivity information has been signaled in the bitstream. The processing circuitry infers, second connectivity information of the 3D mesh frame, from the first points of the point cloud. The second connectivity information is not signaled in the bitstream. The processing circuitry reconstructs the 3D mesh frame based on the point cloud, the first connectivity information and the second connectivity information.

Abstract: Systems, apparatuses and methods may provide for technology that biases a word line of a block in NAND memory to a first voltage level, biases a source-side select gate and a drain-side select gate of the block to a second voltage level, and issues a discharge erase pulse to bitlines and a source of the block, wherein the discharge erase pulse is issued at a third voltage level, wherein the third voltage level is greater than the first voltage level and the second voltage level, and wherein the third voltage level is less than a fourth voltage level of a standard erase pulse. In one example, the discharge erase pulse injects holes into pillars of the block and bypasses an erase of cells in the pillars of the block.

Abstract: A synthetic leather article comprising a top coating derived from an internally emulsified PUD, a barrier layer derived from an externally emulsified PUD and a 2K non-solvent PU foam layer is provided. The leather article exhibits high delamination resistance while retaining superior mechanical properties and appearance comparable with those derived from the organic solvent-based PU. A method for preparing the synthetic leather article is also provided.

Abstract: Embodiments of this application provides an operating system data update method, a device, a storage medium, and a computer program product. The method is applied to an electronic device. After starting, the electronic device loads data from a basic partition, a first static partition, and a dynamic partition to run a first operating system. After the first operating system runs, the method includes: obtaining a patch package based on the version number of the first operating system; updating data in the second static partition based on the patch package, after confirming the data of the first static partition is consistent with the data of the second static partition; modifying a startup sequence of the electronic device from starting from the first static partition to starting from the second static partition; restarting the electronic device.

Abstract: The present application relates to an electrolyte and an electrochemical device including the same. The electrolyte includes a diboronic acid compound and a nitrile compound, so that the storage performance and cycle performance of the electrochemical device using the electrolyte can be remarkably improved.

Abstract: The present application discloses a display panel and manufacturing method thereof and a display apparatus. The display panel includes: a first sub-pixel disposed in the first display area and including a first light-emitting structure, and the first light-emitting structure including at least one first common layer disposed between the first electrode and the second electrode; and a second sub-pixel disposed in the second display area and including a second light-emitting structure, and the second light-emitting structure including at least one second common layer disposed between the third electrode and the fourth electrode, in which a thickness of the fourth electrode is smaller than a thickness of the second electrode, and a total thickness of the at least one second common layer is greater than a total thickness of the at least one first common layer.

Abstract: A spliced screen and a display apparatus are provided. The spliced screen includes: first display panels spliced together, each of which includes a first display region and a first non-display region around the first display region; the first non-display region is a light-transmitting region; and second display panels on non-display sides of the first display panels, each of the second display panels includes a second display region and a second non-display region around the second display region, and light outgoing directions of first and second display panels are the same. A spacing region is arranged between the first display regions of any two adjacent first display panels, and the spacing region includes at least part of the first non-display regions of the two adjacent first display panels; the second display region and the spacing region overlap each other in a thickness direction of the spliced screen.

Abstract: Disclosed are a display panel and a display apparatus. The display panel includes: a base substrate, including a plurality of pixels; and a pixel defining layer, located on the base substrate and having a plurality of pixel openings; wherein the plurality of pixels are in one-to-one correspondence with the plurality of pixel openings; the plurality of pixels include first color pixels (spx1) and second color pixels (spx2); a decay rate of viewing angle brightness of pixel openings (KK1) of the first color pixels (spx1) in unit area is a first decay rate, a decay rate of viewing angle brightness of pixel openings (KK2) of the second color pixels (spx2) in unit area is a second decay rate.

Abstract: A gas-fired steam-injection boiler has a flue and a water supply pipeline. The flue is provided with a radiation section and a convection section. The water supply pipeline has, in the flue gas flow direction, a first pipe section located at an upstream portion of the convection section, a second pipe section is located at a downstream portion of the convection section, and a third pipe section arranged between the first pipe section and the second pipe section. In a water flow direction of the water supply pipeline, the second pipe section, the first pipe section and the third pipe section are arranged in sequence. By using a flue gas condenser, the temperature of flue gas can be further reduced, and the latent heat of vaporization of steam in the flue gas is absorbed to form condensate water.

Abstract: Methods, systems, and devices for wireless communications are described. A first device may select, from multiple orbital angular momentum (OAM) modes, a set of one or more primary OAM modes and a set of one or more secondary OAM modes, where at least one primary OAM mode is activated periodically and at least one secondary OAM mode is activated based on a trigger. The first device may transmit, to a second device, a message indicating a configuration for the selected set of one or more primary OAM modes, the selected set of one or more secondary OAM modes, and discontinuous reception (DRX) parameters for each of the sets of OAM modes. The second device may monitor for a signal using a primary OAM mode using the DRX parameters for the set of primary OAM modes, and the second device may activate a second OAM mode based on receiving the signal.

Abstract: Methods, systems, and devices for wireless communications are described. A first wireless node may transmit, to a second wireless node, an indication of an orbital angular momentum (OAM) base value that is associated with one or more OAM modes. The OAM base value may correspond to a number of antenna elements of an antenna ring at the first wireless node, and for each of the one or more OAM modes. Based on the OAM base value, the first wireless node may communicate reference signaling according to the one or more OAM modes using the number of antenna elements of the antenna ring. The second wireless node may use a same number of antenna elements based on the indicated OAM base value.

Abstract: Methods, systems, and devices for wireless communications are described for closed-loop precoding for multiple-input multiple-output for transmitter circle arrays, for example uniform circular array panels. In some aspects, a base station including a transmitter circle array may steer a beam to a user equipment (UE) using codebooks, quantization rules, and feedback from the user equipment. In some aspects, the same transmitter circle array may be used for both backhaul communications with a device at a fixed location, for example using beams formed via discrete Fourier transform (DFT) vectors, and access communications with a UE via non-DFT beams coded using closed-loop precoding.

Abstract: A delaminated subway station structure in a sea-land connection region includes an openly-excavated station hall, a platform floor, a first air shaft duct, a second air shaft, up and down entrances and exits, a barrier-free entrance and exit, and an under-rail street passage, where the platform floor is formed by expanding an existing running tunnel, such that a double-vault structure of the platform floor is formed; two groups of up and down entrances and exits are disposed, and located in waiting regions on two sides respectively to connect expanded ear chambers on two sides and the openly-excavated station hall; two groups of barrier-free entrances and exits are disposed, and located in the waiting regions on the two sides respectively; and the under-rail street passage is closely attached to a bottom plate of the existing running tunnel to form an underpass and connects to the expanded ear chambers.

Abstract: The present invention discloses an internal-parallel inlet with mode conversion combined with variable geometry adjustment, which comprises a high-speed channel, a low-speed channel, a mode conversion component, a variable geometry component and a motor actuating component. When the inlet is in a low-speed mode, the variable geometry component adjusts the throat area and the internal contraction ratio of the inlet. When the flight Mach number is in a range of the mode conversion Mach number, the mode conversion component and the variable geometry component work simultaneously. When the inlet is in a high-speed mode, the mode conversion component is combined with the variable geometry component to adjust the throat area and the internal contraction ratio of the inlet. The present invention also provides a method for controlling the inlet.

Abstract: A delaminated subway station structure in a sea-land connection region includes an openly-excavated station hall, a platform floor, a first air shaft duct, a second air shaft, up and down entrances and exits, a barrier-free entrance and exit, and an under-rail street passage, where the platform floor is formed by expanding an existing running tunnel, such that a double-vault structure of the platform floor is formed; two groups of up and down entrances and exits are disposed, and located in waiting regions on two sides respectively to connect expanded ear chambers on two sides and the openly-excavated station hall; two groups of barrier-free entrances and exits are disposed, and located in the waiting regions on the two sides respectively; and the under-rail street passage is closely attached to a bottom plate of the existing running tunnel to form an underpass and connects to the expanded ear chambers.

Abstract: Processing circuitry decodes a texture map in 2D from a bitstream carrying a 3D mesh frame. The 3D mesh frame represents a surface of an object with polygons and is partitioned into patches. The texture map includes transformed patches with transformed UV coordinates that are transformed from original UV coordinates of the patches according to remap transform parameters. The processing circuitry decodes the remap transform parameters associated with the patches and generates a recovered texture map from the texture map according to the remap transform parameters. At least a first recovered pixel in the recovered texture map is assigned with a texture value at a first transformed position in the texture map, the first transformed position in the texture map is determined according to a pixel position of the first recovered pixel and first remap transform parameters associated with a first patch that the first recovered pixel belongs to.

Abstract: A track assembly includes a track and a support member connected to and configured move along the track. The support member may include an engagement portion. The engagement portion may be configured to engage the track to limit relative movement between the track and the support member in a loaded state of the track assembly. The engagement portion may be configured not to operatively engage the track or limit movement between the track and the support member in an unloaded state of the track assembly.

Abstract: The present disclosure provides a piezoelectric resonator, including a bottom electrode, a piezoelectric layer formed on a side of the bottom electrode, a top electrode formed on a side of the piezoelectric layer away from the bottom electrode, an acoustic wave reflection structure formed on a side of bottom electrode away from piezoelectric layer, an insertion layer, and a mass load. The top electrode, piezoelectric layer, bottom electrode, and acoustic wave reflection structure form a resonant region. The insertion layer is formed on a side of top electrode away from piezoelectric layer and/or on the side of bottom electrode away from piezoelectric layer, and at least partially covers the resonant region. The mass load is formed on a side of the insertion layer away from piezoelectric layer, and is at least partially formed in the resonant region. The piezoelectric resonator has high performance, lower process difficulty, higher manufacturability and yield.

Abstract: Certain aspects of the present disclosure relate to methods and apparatus relating to rate matching for new radio (NR) physical downlink shared channel (PDSCH) and physical uplink shared channel (PUSCH). In certain aspects, a method includes receiving a rate matching resource (RMR) configuration from a serving cell. The method also includes identifying one or more first resource elements (REs) to be rate matched around at least in part based on a transmission numerology associated with the RMR configuration, wherein the one or more first REs are used for reference signal (RS) transmission in the serving cell or a neighboring cell. The method further includes mapping a physical downlink shared channel (PDSCH) to one or more second REs not including the first REs.