Abstract: System for image correction in PET is provided. The system may acquire a PET image and a CT image of a subject. The system may generate, based on the PET image and the CT image, an attenuation-corrected PET image of the subject by application of an attenuation correction model. The attenuation correction model may be a trained cascaded neural network including a trained first model and at least one trained second model downstream to the trained first model. During the application of the attenuation correction model, an input of each of the at least one trained second model may include the PET image, the CT image, and an output image of a previous trained model that is upstream and connected to the trained second model.

Abstract: The present disclosure relates to a method and electronic device for processing data. The electronic device can execute the method that can include: acquiring an interactive message, the interactive message being transmitted based on live streaming data; extracting first feature data from the interactive message; determining first pose data based on the first feature data; and determining a pose of a first virtual avatar based on the first pose data, and transmitting the first virtual avatar.

Abstract: Techniques regarding a zero-confidence adversarial attack are provided. For example, one or more embodiments described herein can comprise a system, which can comprise a memory that can store computer executable components. The system can also comprise a processor, operably coupled to the memory, and that can execute the computer executable components stored in the memory. The computer executable components can comprise an adversarial component that computes a perturbation that causes misclassification by a neural network classifier. The computer executable components can also comprise a restoration component that determines a normal vector to a constraint contour developed by the neural network classifier. Further, the computer executable components can comprise a projection component that determines a tangential vector to the constraint contour.

Abstract: The present disclosure provides a system for image reconstruction. The system may obtain an initial image of a subject. The initial image may be generated based on scan data of the subject that is collected by an imaging device. The system may also generate a gradient image associated with the initial image. The system may further generate a target image of the subject by applying an image reconstruction model based on the initial image and the gradient image. The target image may have a higher image quality than the initial image.

Abstract: Positive plate, electrochemical device including same, and apparatus thereof are disclosed. The positive plate includes a current collector and an electrode active material layer arranged on at least one surface of the current collector, the current collector includes a support layer and a conductive layer arranged on at least one surface of the support layer, a single-sided thickness D2 of the conductive layer satisfies: 30 nm?D2?3 ?m. A material of the conductive layer is aluminum or aluminum alloy, and a density of the conductive layer is 2.5 g/cm3-2.8 g/cm3. The electrode active material layer includes an electrode active material, a binder, and a conductive agent, and the binder has an uneven distribution in a thickness direction of the electrode active material layer.

Abstract: In one aspect, a method of wireless communications is disclosed. The method includes receiving, by a wireless device from a network device, one or more reference signals. The method further includes transmitting, by the wireless device, a report, wherein the report includes at least one of a first reference signal, a channel quality, an uplink transmission parameter, a first group information, a carrier component, or a control resource set pool.

Abstract: A white light interferometric fiber-optic gyroscope based on a rhombic optical path difference bias structure includes a laser, a rhombic optical path difference bias structure, a fiber coil and a photodetector. The white light interferometric fiber-optic gyroscope adopts an all-fiber structure to simplify the complexity of a gyroscope system and reduce the overall cost. A white light interferometric demodulation algorithm is used to realize linear output of rotation rate signals.

Abstract: Disclosed are a method and apparatus for transmitting data in an IoT system. The method includes: determining a data type of device data sent by an IoT device when a connection between a gateway device and a server is abnormal; storing device data of a real-time data type into a first message queue of a message-oriented middleware, and storing device data of a historical data type into a second message queue of the message-oriented middleware; transmuting the device data in the first message queue to a server over a first MQTT channel and transmitting the device data in the second message queue to the server over a second MQTT channel when the connection resumes to a normal state.

Abstract: The present invention relates to a method for a non-specific amplification of a natural short-fragment nucleic acid, comprising the following steps: (1) performing end repair on the natural short-fragment nucleic acid to obtain an end-repaired nucleic acid; (2) connecting the end-repaired nucleic acid to a double-stranded linker to obtain a ligation product, in which each strand of the double-stranded linker contains only three bases; (3) performing PCR amplification on the ligation product using a PCR primer labeled with deoxyuridine to obtain a PCR product, in which the PCR primer is completely or partially complementary to a strand of the double-stranded linker and contains only three bases; and (4) digesting the PCR product by using an enzyme having a deoxyuridine cleavage function, followed by digesting the PCR product by using an enzyme with both 5??3? polymerase activity and 3??5? exonuclease activity in the presence of a deoxynucleotide solution to obtain a non-specific amplification product of the na

Abstract: The present disclosure discloses a query method, an apparatus, an electronic device, and a storage medium, and relates to the technical field of spatio-temporal big data in big data technologies. The specific implementation scheme is as follows: receiving a query request sent by a terminal device, where the query request is used to request to query dynamic association relationships of a target entity and includes an identifier of the target entity and query starting and ending time; determining at least one time bucket to be queried in a query database according to the query starting and ending time, where each time bucket stores the dynamic association relationships of the target entity in a time period corresponding to the time bucket; and querying the dynamic association relationships of the target entity in the at least one time bucket according to the identifier of the target entity.

Abstract: Techniques for adjusting storage space involve: receiving a request for adjusting available storage space of a user in a filesystem from a first size to a second size; determining whether to allow to adjust the available storage space based on the request; and in response to allowing to adjust the available storage space, adjusting the available storage space to the second size. Accordingly, not only operations that an administrator needs to perform for adjusting the available storage space of a user is reduced, but also a quick and correct response for a request from a user of adjusting the available storage space is guaranteed.

Abstract: A quick-assembly seat includes a seat body, a clamping assembly and a driving assembly. The clamping assembly includes a clamping member slidably connected to the seat body, and the clamping member includes a first driving surface. The driving assembly includes a driving member slidably connected to the seat body, and the driving member includes a second driving surface. The driving member is configured to slide relative to the seat body, such that the second driving surface presses against the first driving surface, and the driving member drives the clamping member to slide relative to the seat body to clamp or unclamp a quick-release part. The quick-release assembly includes the quick-assembly seat and the quick-release part that are connected. The quick-release part can be connected to a photographing device, and the seat body can be mounted on a bracket. The photographing device can be quickly assembled on the bracket and disassembled.

Abstract: The present disclosure provides a method for data processing, a server, and a live broadcast system. The method includes: in response to a gift giving instruction sent by a first electronic device through a first user account on a first live broadcast platform, the gift giving instruction including a gift identifier of a virtual gift, and a platform identifier and a host identifier of a second live broadcast platform, determining a second virtual currency value of the virtual gift on the second live broadcast platform according to the gift identifier, and converting the second virtual currency value to a first virtual currency value on the first live broadcast platform; and sending information corresponding to the virtual gift to a second electronic device in response to deducting the first virtual currency value from the first user account.

Abstract: Disclosed herein is a silane-functional hardener for carboxyl-functional resins including at least one monomer and/or oligomer and/or polymer having at least one group represented by Formula I-(a) and/or Formula I-(b) and at least one group represented by Formula II-(a) and/or Formula II-(b): where, R1, R2 and R3 independently represent a C1-C18 alkyl group, C1-C6 alkoxyl group, phenyl group, aryl group, hydrogen atom, chlorine atom or fluorine atom and at least one of R1, R2 and R3 is a C1-C6 alkoxyl group, R4 represents a C1-C18 alkyl group, C1-C6 alkanol group, C1-C6 alkoxyl group, or hydrogen atom, R5 represents a hydrogen atom, C1-C18 alkyl group, or C1-C6 alkoxyl group, R6 represents a C2-C6 acyl group, C1-C18 alkylene group or arylene group and R7 represents a —NR4— group, C2-C6 acyl group, C1-C18 alkylene group, C1-C18 alkoxy group or arylene group.

Abstract: A touch sensing system is configured to determine a state of a paper material indicative of a touch input on the paper material. The actions include receiving one or more values of features representing physical properties of a paper material. The system generates, by a pair of electrodes in a conductive material that is electrically connected with the paper material, an electric field in the conductive material. The paper material is configured to shunt current from the conductive material when the paper material is touched. The system measures the electric field in the conductive material in the conductive material. The system generates an approximation of the electric field in the conductive material. The system determines with a classifier a state of the paper material indicative of a touch input on the paper material.

Abstract: Embodiments of the present provide a method and a device for processing an image, server and storage medium. The method includes: determining, based on an object type of an object in an image to be processed, a feature expression of the object in the image to be processed; and determining an entity associated with the object in the image to be processed based on the feature expression of the object in the image to be processed and a feature expression of an entity in a knowledge graph.

Abstract: Disclosed is a Data Matrix (DM) code. An image of the DM code consists of several color blocks arranged in a rectangular array, a circle of color blocks on the edge of the image constitutes a positioning region, and the color blocks inside the image constitute a coding region; the positioning region includes an “L”-shaped edge and a positioning edge opposite to the “L”-shaped edge, wherein the colors of the color blocks include at least three of eight colors, the eight colors being three standard RGB colors, four standard CMYK colors, and white. The positioning edge is formed by alternately arranging color blocks of two colors that are black after filtering by a channel in any color of RGB and white after filtering by a channel in the same color.

Abstract: Systems and methods for wireless communications are disclosed herein. A base station sends, to a wireless communication device, a first number of Transmitted Precoding Matrix Indicators (TPMI) codewords corresponding to a second number of codebook-based uplink transmissions of the wireless communication device. The first number being greater or equal to 1. The second number being greater or equal to 1. The first number of TPMI codewords correspond to an uplink transmission set. The uplink transmission set including the second number of the uplink transmissions. The base station receives, from the wireless communication device, the codebook-based uplink transmissions transmitted based on the TPMI codewords.

Abstract: Methods, apparatus and systems for configuring timing advance information in a wireless communication are disclosed. In one embodiment, a method performed by a wireless communication device is disclosed. The method comprises: determining a first set of beam indications and a second set of timing advance command (TAC) values, wherein each beam indication in the first set is associated with a respective TAC value in the second set; and obtaining, for indication an uplink transmission to a wireless communication node, an indication comprising a TAC value from the second set.

Abstract: The presently claimed invention relates to liquid crystal lipid particles. The presently claimed invention relates to liquid crystal lipid particles which are used in hair care composition and exhibit excellent hair moisturizing effect.