Abstract: This disclosure relates to methods and systems for for encoding or decoding a 3D mesh with constrained geometry dynamic range. The example decoding method includes receiving a coded bitstream comprising a geometry patch for a three-dimension mesh; extracting, from the coded bitstream, a first syntax element indicating whether the geometry patch is partitioned, wherein the geometry patch comprises one or more partitions; and for a respective partition in the geometry patch, obtaining a dynamic range of pixel values for points in the respective partition that correspond to vertices in the three-dimension mesh, wherein the dynamic range enables the geometry patch to be coded within a predetermined bit depth.

Abstract: In one example, a method for evaluating screen content for accessibility with a screen reader device is disclosed. The method provides a baseline document including a script of expected screen content that conforms accessibility requirements. The method may generate an audio file based on screen content elements. For some implementations, the method uses a machine learning model to transcribe the audio file into an output transcription file. The method may determine whether output transcription file matches the baseline document and a corresponding output report is generated.

Abstract: An isolated nucleic acid, a plasmid or viral vector thereof and a pharmaceutical composition thereof, and a method for treating a disease. The nucleic acid and the vector comprise at least one RNA fragment capable of inhibiting gene expression and/or a targeting tag having a targeting function, can be delivered into a host body, are enriched in an organ tissue of a host, and are self-assembled to form and secrete an exosome and target a target tissue, thereby treating the disease.

Abstract: A computerized simulation validating method for a full-scale distribution network single phase-to-ground fault test is implemented by simulating a full-scale test system with external quantities being controlled to be conformant and validating the full-scale distribution network single phase-to-ground fault test based on a conformance check result between the internal quantities of the field testing and the internal quantities of the simulation testing. The simulation validating method for a full-scale distribution network single phase-to-ground fault test improves normalization and conformance of the full-scale distribution network ground fault test. The computerized simulation validating system, apparatus, and medium for a full-scale distribution network single phase-to-ground fault test also achieve the benefits noted above.

Abstract: The invention discloses a ternary positive electrode material coated with nitride/graphitized carbon nanosheets and preparation method thereof. The ternary positive electrode material coated with nitride/graphitized carbon nanosheets includes a ternary positive electrode material matrix and a coating layer; the coating layer is composed of nitride and graphitized carbon; and the graphitized carbon is formed in situ in the coating process of the nitride. Compared with a physical mixing method, the in-situ generated carbon layer is connected to the material matrix more tightly, and the formed conductive network is denser. So that the rate performance of the material is improved to the maximum extent. The preparation method is simple and easy to realize industrial production. And the obtained ternary positive electrode material coated with nitride/graphitized carbon nanosheets has excellent rate performance and cycling stability.

Abstract: A method for determining a collision range includes: determining a grid plane corresponding to a model, the grid plane including a plurality of grid regions; projecting the model to the grid plane and obtaining height information of the model with respect to the grid plane, the height information of the model including grid height information corresponding to a grid region that identifies a height of a sub-model in the model with respect to the grid plane, and the sub-model being a portion of the model in a projection space of the grid region; and obtaining a collision range of the model according to the grid plane and the height information.

Abstract: The present application belongs to the technical field of civil and architectural engineering materials, and in particular relates to an environmental and low-carbon foamed lightweight soil prepared by using CO2 and MgO as raw materials. Raw material compositions of the carbon sequestration foamed lightweight soil include, in parts by weight, 10 to 200 parts of MgO, 10 to 100 parts of a filler, 2 to 45 parts of a CO2 bubble cluster and 20 to 400 parts of water. The present application is made in view of the problems of large carbon emission and serious energy consumption caused by a cement solidification agent used in traditional foamed lightweight soil.

Abstract: This application provides a connection device, a cable plug, and a cable assembly. The connection device comprises a housing (e.g., shell) and several wire-insertion components. The housing has a placement cavity and an insertion port, and several wire-insertion components are set in the placement cavity. The wire-insertion components are used to fix one end of the cable and connect with the cable electrically. At least part of the wire-insertion components are exposed through the insertion port, so that the conductive column of the base can be inserted into the insertion port and contact with the wire-insertion component to achieve electrical connection. The connection device can make the installation and removal process of the base simpler, safer, and more convenient to replace the base (e.g., socket) of different functional modules.

Abstract: In a method of point cloud attribute decoding in a point cloud decoder, a sorting method of a set of points of a point is determined. A quantization parameter for quantizing transform coefficients of a Haar-based attribute coding of the point cloud is determined based on first signaling information in a coded bitstream of the point cloud. The Haar-based attribute coding is configured to perform point cloud compression on the set of points of the point cloud based on a Haar transform. An entropy decoding method for decoding the quantized transform coefficients is determined according to the quantization parameter that is determined based on the first signaling information. The quantized transform coefficients are further determined based on the entropy decoding method. Attributes of the point cloud are reconstructed based on the determined sorting method and the determined quantized transform coefficients.

Abstract: An unmanned vehicle is disposed in a predetermined area, and is provided with a lidar unit that emits light beams to acquire light sensing data pieces, each containing distance information and a light intensity value. The unmanned vehicle acquires a detection value representing a number of those of the light sensing data pieces whose light intensity values are greater than a light intensity threshold. When the detection value is zero, a first pose of the unmanned vehicle is calculated based on a moving speed and a moving direction of the unmanned vehicle. When the detection value is not zero, a second pose of the unmanned vehicle is calculated based on the moving speed, the moving direction and positions of multiple reflective marks disposed in the predetermined area, as recorded in an area map of the predetermined area.

Abstract: A method, computer program, and computer system is provided for decoding point cloud data. Data corresponding to a point cloud is received. A number of contexts associated with the received data is reduced based on reducing a size of an array corresponding to syntax elements for predictive tree-based coding of the point cloud. The data corresponding to the point cloud is decoded based on the reduced number of contexts.

Abstract: Disclosed are a power supply module housing and a power supply module comprising same. The power supply module housing comprises a main housing, the main housing is provided with a maintenance and installation opening for facilitating the maintenance and installation of the power supply module, and a skylight cover plate detachably covers the maintenance and installation opening. The power supply module comprises the power supply module housing, a connecting terminal is installed in the power supply module housing, and the skylight cover plate is provided at the position corresponding to the connecting terminal. According to the present application, additionally providing the maintenance and installation opening and the skylight cover plate on a top cover enables wiring to be performed without removing the top cover in a field wiring work, thereby simplifying the steps of field wiring, and reducing the risk during work at height.

Abstract: A method of point cloud attribute coding is performed by at least one processor and includes receiving a point cloud data set comprising a bounding box. A determination is made as to whether the bounding box is symmetric or asymmetric. A quad-tree-binary-tree (QtBt) decomposition is performed on the point cloud data set based on the bounding box being asymmetric.

Abstract: The invention discloses a carbon fiber composite artificial bone and a preparation method thereof. The artificial bone includes a carbon fiber composite spring-like frame or includes a carbon fiber composite spring-like frame and a carbon fiber composite plate dowel, and the carbon fiber composite plate dowel is inserted into one end or both ends of a cavity of the spring-like frame or penetrates through the cavity of the carbon fiber composite spring-like frame. The preparation method includes: preparing a spring-like carbon fiber preform through a weaving technology by using carbon fibers as a raw material, performing densification and high-temperature purification treatment and preparing a wear-resistant coating to obtain the carbon fiber composite spring-like frame; and combining the carbon fiber composite spring-like frame with the carbon fiber composite plate bowel to obtain the artificial bone.