Abstract: It discloses a communication and radar target detection method based on an intelligent omni-surface, comprising step 1: constructing an optimization problem by maximizing a minimum beampattern gain as an objective function, the communication system being an integrated sensing and communication system based on an intelligent omni-surface; step 2: setting a constraint condition for the optimization problem constructed in the step 1, the constraint condition comprising a minimum rate constraint of a user, a maximum transmit power constraint of a base station, and amplitude and phase shaft constraints of the intelligent omni-surface; and step 3: solving the optimization problem after setting with the constraint condition to obtain an optimization solution for maximizing the minimum beampattern gain. According to the method, a capability of detecting the radar target is further improved under the condition that a quality of service of a communication user is guaranteed.

Abstract: The invention discloses a blockchain-based intrusion detection system for railway signal, which is built on a blockchain's distributed chain structure, without a central, trusted control center. This design mitigates the vulnerabilities associated with centralized intrusion detection centers. Additionally, by utilizing a blockchain-based distributed structure, it also eliminates the risk of a single point of failure for the intrusion detection center. Moreover, the data within the blockchain-based intrusion detection system is highly resistant to malicious tampering. This is achieved by leveraging the consensus mechanism inherent in the blockchain, which can achieve consensus among intrusion detection nodes. The current invention solves the internal evil attacks and avoid the inability to reach consensus between nodes due to internal evil, thereby affecting the intrusion detection performance; at the same time, the intrusion detection model can resist external network attacks.

Abstract: A heat spreader and an illumination device including the heat spreader are disclosed. The heat spreader includes a first substrate and multiple first heat dissipation fins, the multiple first heat dissipation fins are arranged side by side on the first substrate at intervals in a first preset direction, and the heat spreader meets constraints of the following Relational expression 1: N?{L/[?+9], L/[?+9]+2} and Relational expression 2: H?{[(?1+?2)/2?1.2]/tan 2?, [(?1+?2)/2+1.2]/tan 2?}. L represents a length of the first substrate in the first preset direction, represents a weighted average thickness of the multiple first heat dissipation fins, N represents a distribution number of the first heat dissipation fins, ?1 represents a maximum thickness of the first heat dissipation fin, ?2 represents a minimum thickness of the first heat dissipation fin, ? represents a draft angle of the first heat dissipation fin, and H represents a distribution height of the first heat dissipation fin.

Abstract: An example power converter may include a planar transformer including a magnetic core, a primary winding, a first secondary winding interleaved with the primary winding, and a second secondary winding interleaved with the primary winding. The magnetic core may include a first core half, a second core half, multiple auxiliary legs formed by the first core half and the second core half, and multiple core legs formed by the first core half and the second core half. The multiple core legs may include a central core leg, and the primary winding may be wound around the central core leg among the two or more core legs. The planar transformer may be electrically coupled between a primary-side converter stage and a secondary-side converter stage.

Abstract: Provided in the present invention are an antibody or an antigen-binding fragment thereof against human B7-H3. Further provided are a nucleic acid molecule encoding the antibody, an expression vector and a host cell for expressing the antibody, and a method for producing the antibody. In addition, further provided in the present invention are a pharmaceutical composition containing the antibody or the antigen-binding fragment thereof, and the use thereof in the preparation of a drug for preventing and/or treating various diseases (comprising tumors and autoimmune diseases).

Abstract: The present disclosure relates to a method for analyzing a geological body with the help of physical and chemical properties thereof, and in particular, to a method for identifying an exudative sandstone uranium deposit. With the method for identifying an exudative sandstone uranium deposit according to the embodiments of the present disclosure, an exudative sandstone uranium deposit formed by an exudation metallogenesis may be systematically identified, so as to guide prediction and prospecting evaluation of a uranium deposit in red variegated sandstone formations of a sedimentary basin, avoid ore dislocation and ore leakage, open up new prospecting positions and spaces, and break through new uranium resources.

Abstract: A method for presence detection using ultra-wide band (UWB) radar includes obtaining a set of centroids based on UWB radar measurements. The method includes, for each respective centroid among the set of centroids: classifying the respective centroid as one among human movement and non-human movement, based on a set of features for the respective centroid satisfying a human-movement condition; and when the respective centroid is classified as the human movement, determining a two-dimensional (2D) location of human movement based on the UWB radar measurements. The method includes updating a current state value that indicates whether a human presence is detected inside boundaries of a 3D space, based at least in part on the classification of each of the respective centroids among the set of centroids.

Abstract: Embodiments of this application provide an EIRP control method and a communications apparatus. In this solution, an EIRP threshold of a spatial grid may be determined, where the EIRP threshold of the spatial grid is related to a safety distance of the spatial grid; and a plurality of beams are controlled, so that a total EIRP of the plurality of beams in the spatial grid is less than or equal to the EIRP threshold. According to the foregoing solution, a total EIRP of each spatial grid may be controlled, at a granularity of a spatial grid, to not exceed an EIRP threshold of the spatial grid, so that deployment of a MIMO access network device satisfies an EMF strength requirement specified by each country/region.

Abstract: An extraction cleaner may include a base, an upright body pivotally coupled to the base, a supply tank removably coupled to the upright body and a recovery tank removably coupled to the upright body. The base may include a non-removable door and a removable suction nozzle. At least one fluid dispensing nozzle may be provided on the door. The door may be pivotally coupled to the base for providing access to an agitator. The cleaner may include and auto-spray configuration. The cleaner may include a support on the upright portion for the recovery tank. The cleaner may include an additive tank received in a receptacle of the supply tank. The recovery tank may include a float and/or an airflow management configuration. The cleaner may include a cleaning tool and a suction changeover valve and/or a fluid changeover valve. The cleaner may include a mixing valve for supplying fluid to a fluid changeover valve.

Abstract: Tetradentate platinum and palladium complexes based on biscarbazole and analogues for full color displays and lighting applications.

Abstract: A method for constructing a topology reference structure for a production line is provided. The present disclosure is based on historical production line topology data of an enterprise to extract a commonly used topology reference structure for a production line of the enterprise by a computer through a machine learning (ML) algorithm, so as to form a typical production line topology group of the enterprise. The present disclosure can record typical production line characteristics and production habits of the enterprise, realize reuse of a production line structure and production line construction knowledge, reduce the workload of production line designers, and improve the production line construction efficiency of the enterprise. In addition, the present disclosure avoids the interference of designers' subjective decisions to a certain extent, and the reference structure extracted by the computer has high reference value, and is objective, mature, and stable.

Abstract: A conductive sheet, a conductive strip, and an electrical connector for a vehicle are disclosed. The conductive sheet includes a conductive sheet body, the conductive sheet body is a flat ribbon structure, and the conductive sheet body satisfies the following condition: ? ? { [ 1 + ( - 0 ) / ] 0 / k ? ( ? + 8 ) ] , 50 [ 1 + ( - 0 ) / ] 0 / k ? ( ? + 8 ) ] } ? is the width of the conductive sheet body, measured in mm. ? represents the thickness of the conductive sheet body, measured in mm. represents a standard conductivity percentage of a pure copper material, and has a value of 100% IACS. 0 represents a conductivity percentage of the conductive sheet body, measured in % IACS. k is 1.07% IACS/mm2. The conductivity percentage of the conductive sheet body is 55% IACS to 80% IACS.

Abstract: Tetradentate platinum complexes of Formulas I and II suitable for phosphorescent or delayed fluorescent and phosphorescent emitters in display and lighting applications.

Abstract: A system and method for monitoring the failure of assembly tooling for a mass-individualized production line are provided. The system realizes real-time monitoring and prediction of the remaining service life of the assembly tooling in the mass-individualized production line through the cooperation of a manufacturing execution system (MES), a supervisory control and data acquisition (SCADA) system, an assembly tooling failure prediction system, a controller network, and an assembly line. When the remaining service life reaches a certain threshold, the system sends an early warning to an operator, and provides decision support for the operator to replace the assembly tooling. The assembly tooling failure prediction system is built with an assembly tooling failure prediction model for predicting the remaining service life of the assembly tooling in real time, which avoids the influence of human factors and greatly improves the prediction accuracy.

Abstract: The invention discloses a blockchain-based intrusion detection system for railway signal, which is built on a blockchain's distributed chain structure, without a central, trusted control center. This design mitigates the vulnerabilities associated with centralized intrusion detection centers. Additionally, by utilizing a blockchain-based distributed structure, it also eliminates the risk of a single point of failure for the intrusion detection center. Moreover, the data within the blockchain-based intrusion detection system is highly resistant to malicious tampering. This is achieved by leveraging the consensus mechanism inherent in the blockchain, which can achieve consensus among intrusion detection nodes. The current invention solves the internal evil attacks and avoid the inability to reach consensus between nodes due to internal evil, thereby affecting the intrusion detection performance; at the same time, the intrusion detection model can resist external network attacks.

Abstract: A display substrate is provided, including: a base substrate including at least pixel and hole areas; sub-pixels arranged on the base substrate and in the pixel area; a hole in the hole area; a first barrier dam between the sub-pixels and the hole and at least partially surrounding the hole; a functional film layer, an organic material layer and an encapsulating structure sequentially arranged on the display substrate in a direction away from the base substrate, an orthographic projection of the organic material layer on the base substrate falling within the pixel area, the organic material layer including at least one film layer; and a filling structure, at least a portion of which is arranged between the hole and the first barrier dam. The filling structure and the at least one film layer of the organic material layer are in the same layer and include the same material.

Abstract: A modulation method for a direct current (DC) coupling converter with less DC voltage sensors includes: obtaining a voltage modulated wave vr* and a current reference value ig* of the DC coupling converter; performing judgment on the voltage modulated wave vr* and the current reference value ig*, and determining a switch state of the DC coupling converter based on a result of the judgment; and when a DC voltage sensor of an electrolytic capacitor of an intermediate power module is removed, modulating a DC voltage sensor based on the voltage modulated wave vr* and a difference between DC voltages on electrolytic capacitors of the other two power modules. When the intermediate DC-side voltage sensor is removed, DC voltages of various modules of a converter system of a DC coupling power unit can still be balanced, and quality of a grid-connected current is not affected by a fault.

Abstract: A double-channel fluid injection apparatus includes a main shaft, a bearing box, and a sealing box. The main shaft includes an outer tube and an inner tube. An internal channel of the inner tube and a vertical through channel constitute a first fluid passageway. The inner tube and the outer tube form an annular gap, and a channel D is radially formed at a lower part of the outer tube and is in communication with the annular gap, thus constituting a second fluid passageway. The bearing box is mounted on a boss of the outer tube. The sealing box includes a sealing cylinder fixedly connected to a lower end of a lower end cap of the bearing box. A channel E in communication with the second fluid passageway is radially formed at a position of the sealing cylinder corresponding to the channel of the outer tube.

Abstract: An extraction cleaner may include a base, an upright body pivotally coupled to the base, a supply tank removably coupled to the upright body and a recovery tank removably coupled to the upright body. The base may include a non-removable door and a removable suction nozzle. At least one fluid dispensing nozzle may be provided on the door. The door may be pivotally coupled to the base for providing access to an agitator. The cleaner may include and auto-spray configuration. The cleaner may include a support on the upright portion for the recovery tank. The cleaner may include an additive tank received in a receptacle of the supply tank. The recovery tank may include a float and/or an airflow management configuration. The cleaner may include a cleaning tool and a suction changeover valve and/or a fluid changeover valve. The cleaner may include a mixing valve for supplying fluid to a fluid changeover valve.

Abstract: A display apparatus includes a display panel, a touch layer, and a flexible printed circuit (FPC) including a main FPC and a bridge FPC. A third soldering region and a fourth soldering region of the bridge FPC are respectively soldered to a first soldering region and a second soldering region of the main FPC. Ends of each first touch connection line are electrically connected to a touch chip and a first touch lead. Ends of each second touch connection line are electrically connected to a pad on the second soldering region and a second touch lead. Ends of each third touch connection line are electrically connected to a pad on the first soldering region and the touch chip. Ends of each touch transfer line are electrically connected to a pad on the third soldering region and a pad on the fourth soldering region.