Abstract: Provided are an optical waveguide structure, an Augmented Reality (AR) device, and a method for obtaining an emergent light efficiency of an optical waveguide structure, which relates to the technical field of display. The optical waveguide structure includes: an optical waveguide body, a coupling-in grating disposed at the optical waveguide body, and a plurality of coupling-out gratings distributed and arranged. The coupling-in grating is configured to couple image light into the optical waveguide body. The optical waveguide body is configured to generate a total internal reflection of the image light to the coupling-out gratings. Diffraction efficiencies of each of the coupling-out gratings are different, and each of the coupling-out gratings is configured to couple the image light out of the optical waveguide body at the same brightness.

Abstract: A head-up display system and a display apparatus are provided in this disclosure, which relates to a technical field of displaying. The head-up display system includes a display unit; a light splitting unit provided on a light emitting side of the display unit and configured to transmit a first linearly polarized light and block a second linearly polarized light, light emitted by the display unit being converted into the first linearly polarized light after passing through the light splitting unit; a light-transmitting substrate; a first imaging unit provided on an optical path from the light splitting unit to the light-transmitting substrate and configured to be able to transmit and reflect the first linearly polarized light; and a second imaging unit provided on a side of the light-transmitting substrate away from the first imaging unit, and configured to reflect the first linearly polarized light transmitted through the light-transmitting substrate.

Abstract: This application provides an IAB network includes a first BAP topology and a second BAP topology, the first BAP topology is managed by a first donor node, the second BAP topology is managed by a second donor node. In the IAB network, a first IAB node receives a first data packet, where the first IAB node is managed by the first donor node, at least one parent node of the first LAB node is managed by the second donor node, and the first IAB node belongs to the first BAP topology. The first IAB node processes the first data packet based on a BAP topology corresponding to an ingress link for receiving the first data packet.

Abstract: Example interface information presenting methods, electronic devices and computer-readable storage media are provided. An example method includes: obtaining a target interface; in response to a first operation of a user, entering a screen-locked state, and obtaining a first picture displayed in the screen-locked state; processing the target interface to obtain a target picture; and displaying the target picture in the screen-locked state, to cover the first picture.

Abstract: The present disclosure relates to an electronic control system based on three-dimensional (3D) concrete printing, including: a control card, a three-way axis driver, a printing device head, a servo motor, a camera and a monitoring system. The monitoring system includes the camera and a display module. The control card is configured to parse a 3D digital model of a to-be-printed object into a program instruction. The three-way axis driver is configured to receive the program instruction to drive the servo motor. The servo motor is configured to control movement of the printing device head. The camera is configured to acquire video data of a discharge port of the printing device head in real time. The monitoring system is configured to remotely monitor concrete discharge conditions of the printing device head according to the camera. The control card is connected with the three-way axis driver based on an EtherCAT bus.

Abstract: The present disclosure provides a dynamic true triaxial electromagnetic Hopkinson bar system, including a central cubic box, a horizontal cruciform support platform, and a central support platform, wherein the central cubic box is disposed in the center of the upper surface of the central support platform; the central cubic box and the horizontal cruciform support platform form an orthogonal coordinate system for precisely positioning and centering the dynamic true triaxial electromagnetic Hopkinson bar system; the confining-pressure loading systems, electromagnetic pulse generators, circular bulges, square bars, and self-lubricating square bar fixation and support frames in the directions X, Y, and Z are respectively symmetrically arranged by taking the central cubic box as a symmetric center; and the systems in the directions X, Y, and Z together construct the dynamic true triaxial electromagnetic Hopkinson bar system.

Abstract: Embodiments of this application provide a cross-chain transaction method and apparatus. The cross-chain transaction method includes determining, by a first node, that a first transaction status of a first transaction is a first status, the first status indicating that consensus verification on the transaction succeeded, the first node maintaining a first blockchain and the first transaction belonging to the first blockchain. The method includes obtaining, by the first node, a second transaction status of a second transaction, a second node maintaining a second blockchain and the second transaction belonging to the second blockchain. The method includes modifying, by the first node, target data, the modifying being based on first transaction data of the first transaction when the second transaction status of the second transaction is the first status, the target data comprising data in a state machine of the first node, the target data being related to the first transaction.

Abstract: A multi-scale aggregation pattern analysis method for a complex traffic network is provided, which belongs to the field of the highway traffic network. Firstly, an adjacency matrix, a position attribute matrix, a distance weight matrix, a road grade matrix, and a time-phased traffic congestion degree matrix of a highway traffic network are calculated; secondly, a weight influence factor of the road network is incorporated based on a PageRank algorithm to determine order of critical nodes; finally, a two-dimensional decision diagram is drawn by two indicators: order of critical nodes and a shortest path distance. A new weighting matrix which accords with the actual situation of the road network is obtained by incorporating a position weight matrix, a distance weight matrix, a road grade weight matrix and a dynamic traffic congestion degree weight matrix based on a similarity matrix of the spectral clustering.

Abstract: Embodiments of this application disclose a noise cancellation apparatus and method. The noise cancellation apparatus includes a main control unit and a noise cancellation processing circuit. The main control unit determines a noise cancellation parameter based on a noise cancellation level index or a feature value for determining a matching degree between a headset and an ear canal of a user. The noise cancellation processing unit obtains an inverse phase noise of an ambient noise based on the noise cancellation parameter. After the inverse phase noise is mixed with a played downlink audio signal, the ambient noise can be canceled. In addition, because the noise cancellation parameter is determined from a preset noise cancellation parameter library based on the received or autonomously determined noise cancellation level index, instead of being uniformly configured, a noise cancellation level can be flexibly adjusted, thereby improving a noise cancellation effect and user experience.

Abstract: A method and apparatus for hydrocracking mineralized refuse pyrolysis oil. The method may use the following steps: (a) crushing and pyrolyzing mineralized refuse to obtain arene and alkane precursor biomass oil; (b) hydrogenating the arene and alkane precursor biomass oil obtained in step (a), and separating the obtained hydrocrackate to obtain arene and alkane; and (c) purifying, recovering and optimizing the arene and alkane obtained in step (b), and performing deep processing to produce naphtha, jet fuel, light diesel oil, and heavy diesel oil.

Abstract: The present invention relates to a learning-oriented transferable automatic driving method and system driven by a world model. The method includes the following steps: constructing a simulation environment; collecting a large batch of data in the simulation environment, and collecting a small batch of data in the real environment; constructing a world model, and performing model training in the simulation environment by using the large batch of data, wherein the world model takes a camera image as an input to model an environment by using a generative world model; storing and transmitting historical moment information by hidden variables, and outputting an aerial view and a control instruction; and performing domain adaptive transferring training in the real environment on the basis of the small batch of data, and deploying the model in an autonomous vehicle in the real world to achieve virtuality-to-reality transferring general integrated automatic driving.

Abstract: Technical solutions are described for storing weight in a crosspoint device of a resistive processing unit (RPU) array. An example system includes a crosspoint array, wherein each array node represents a connection between neurons of the neural network, and wherein each node stores a weight assigned to the node. The crosspoint array includes a crosspoint device at each node. The crosspoint device includes a counter that has multiple single bit counters, and states of the counters represent the weight to be stored at the crosspoint device. Further, the crosspoint device includes a resistor device that has multiple resistive circuits, and each resistive circuit is associated with a respective counter from the counters. The resistive circuits are activated or deactivated according to a state of the associated counter, and an electrical conductance of the resistor device is adjusted based at least in part on the resistive circuits that are activated.

Abstract: The present disclosures discloses a precooler-based transcritical CO2 heat pump system and a control method of a waterway two-way valve thereof, in which a transcritical CO2 heat pump system is assisted by a precooler system. A circulating waterway is divided into two parts in the system through a three-way diversion valve and a three-way confluence valve and is connected to a waterway bypass valve through a waterway two-way regulating valve. An ambient temperature sensor, an evaporation fin temperature sensor and an evaporation pressure sensor are provided, and a programmable logic controller is used as a core for acquisition, operation and control.

Abstract: An equalization time configuration method is applied to a processor system in which a Peripheral Component Interconnect Express (PCIe) bus or a Cache Coherent Interconnect for Accelerators (CCIX) bus is used. The equalization time configuration method includes determining a working physical layer (PHY) type of a master chip and a working PHY type of a slave chip, determining an equalization time of the slave chip in a fourth phase of equalization based on the working PHY type of the master chip, and determining an equalization time of the master chip in a third phase of the equalization based on the working PHY type of the slave chip.

Abstract: The technology of this application relates to a circuit board assembly and an electronic device. The circuit board assembly is applied to the electronic device, and the circuit board assembly includes a circuit board carrying a large-sized chip and a substrate. The substrate is disposed on a side that is of the circuit board and that faces away from the chip, and is connected to the circuit board. In this application, a deformation manner of the circuit board assembly is designed, to effectively reduce impact of a stress generated by deformation of the substrate on self-deformation of the circuit board, and improve a long-term temperature cycle fatigue life of a solder joint between the chip and the circuit board.

Abstract: The present application provides a detection system and a detection method of genomic carcinogenesis information based on cell-free DNA, particularly plasma cell-free DNA. The system includes a library construction apparatus, a sequencing apparatus and an information analysis apparatus, the library construction apparatus is configured to convert 5-methylcytosine (5-mC) in the cell-free DNA in a to-be-detected sample into 5-formylcytosine (5-fC) and 5-carboxycytosine (5-caC) and convert non-methylated cytosine (C) into uracil (U) by using enzymes, and the information analysis apparatus is capable of analyzing methylation density of genome, fragment size distribution, fragment 5? end motif and/or chromosome stability. With the adoption of the system and the method, early, sensitive and accurate detection and screening of various cancers can be synchronously implemented.

Abstract: In a pneumatic tire, a bead core has end portions in a tirewidth direction formed as vertical lines along a tireradial direction. A length of the vertical lines is from 20% to 30% of a core height. In two adjacent bead core layers of first, second and third layers, the radial outer layer tireincludes two or more bead cores more than the radially inner layertire, and a misalignment amount between the bead wires each at an end portion on one side in the tirewidth direction is one-half of a bead wire thickness. A side on which the misalignment amount between the first and second layer bead wires is one-half of the thickness of the bead wire is opposite in the tirewidth direction to a side on which the misalignment amount between the second and third layer bead wires is one-half of the thickness of the bead wire.

Abstract: Technical solutions are described for storing weight in a crosspoint device of a resistive processing unit (RPU) array. An example system includes a crosspoint array, wherein each array node represents a connection between neurons of the neural network, and wherein each node stores a weight assigned to the node. The crosspoint array includes a crosspoint device at each node. The crosspoint device includes a counter that has multiple single bit counters, and states of the counters represent the weight to be stored at the crosspoint device. Further, the crosspoint device includes a resistor device that has multiple resistive circuits, and each resistive circuit is associated with a respective counter from the counters. The resistive circuits are activated or deactivated according to a state of the associated counter, and an electrical conductance of the resistor device is adjusted based at least in part on the resistive circuits that are activated.

Abstract: A method and resulting structures for a semiconductor device includes forming a source terminal of a semiconductor fin on a substrate. An energy barrier is formed on a surface of the source terminal. A channel is formed on a surface of the energy barrier, and a drain terminal is formed on a surface of the channel. The drain terminal and the channel are recessed on either sides of the channel, and the energy barrier is etched in recesses formed by the recessing. The source terminal is recessed using timed etching to remove a portion of the source terminal in the recesses formed by etching the energy barrier. A first bottom spacer is formed on a surface of the source terminal and a sidewall of the semiconductor fin, and a gate stack is formed on the surface of the first bottom spacer.

Abstract: This application discloses a wind noise suppression device including a first woven mesh (101), a second woven mesh (102), a device housing (103), and a structural component (104). The device housing (103) is provided with a sound pickup hole (1031). The first woven mesh (101) covers the sound pickup hole (1031). The structural component (104) is disposed at the sound pickup hole (1031). The structural component (104) is connected to the device housing (103) to form a cavity. The structural component (104) is provided with a sound transmission hole (1041). The second woven mesh (102) covers the sound transmission hole (1041). A microphone is disposed at the sound transmission hole (1041). Because structural characteristics of all the components the device, wind noise included in an audio signal received by the microphone through the sound transmission hole (1041) is effectively reduced.