Abstract: Disclosed are methods of preparing an antimicrobial cross-linked polymeric poly carboxylic acid with improved in-use stability and service life, by making a cross-linked polymeric polycarboxylic acid containing ammonium groups. Also disclosed are the antimicrobial cross-linked polymeric polycarboxylic acids made by the methods, antimicrobial water-absorbent cross-linked polymeric poly carboxylic acids made by the methods, and water-absorbent materials comprising the antimicrobial cross-linked polymeric poly carboxylic acids.

Abstract: This invention discloses a method for comprehensively apportioning the source contribution to fine particular matter (PM2.5) based on the receptor model and the chemical transport model, which comprises the receptor model calculation steps, chemical transport model calculation steps and comprehensive source apportionment steps; the said comprehensive source apportionment step comprises the following sub-steps: according to the principle of inverse proportionality between uncertainty and weight coefficient, the first (receptor model) uncertainty and the second (chemical transport model) uncertainty are normalized to obtain their respective weight coefficients; the comprehensive source apportionment results are calculated based on the apportionment results of the receptor model and the chemical transport model, and their respective weight coefficient.

Abstract: A device is provided, which includes one or more antennas and a circuit. The circuit is configured to receive a packet from a transmitter device through the antennas, and obtain channel-state information from the received packet. The circuit includes one or more filters to filter out or recognize the received packet that complies with one or more preset conditions. The circuit uses the channel-state information of the received packet, which complies with the one or more preset conditions, to estimate a status of a channel between the transmitter device and the device.

Abstract: A display panel includes a display area, a non-display area, a wire routing area, a base substrate, a first insulating layer, a first metal layer, and a second insulating layer. The wire routing area is located in the non-display area. The first metal layer is located between the first insulating layer, including a first via hole exposing at least part of the first metal layer, and the base substrate. The second insulating layer, in contact with the first metal layer, is located between the first metal layer and the base substrate. Along a thickness direction of the display panel, a distance from a side surface of the second insulating layer away from the base substrate to a side surface of the base substrate close to the second insulating layer has D1 in the wire routing area and D2 in the display area, D1>D2>0.

Abstract: A device is provided, which includes one or more antennas and a circuit. The circuit is configured to receive a packet from a transmitter device through the antennas, and obtain channel-state information from the received packet. The circuit includes one or more filters to filter out or recognize the received packet that complies with one or more preset conditions. The circuit uses the channel-state information of the received packet, which complies with the one or more preset conditions, to estimate a status of a channel between the transmitter device and the device.

Abstract: A manufacturing method of a circuit board includes: providing a first double-sided copper laminate including a dielectric layer, a first copper foil layer and a copper plating layer, wherein the dielectric layer, wherein the dielectric layer defines a groove, the copper plating layer includes a first copper plating portion in the groove and a second copper plating portion beside the first copper plating portion. A double-sided circuit substrate including base layer and two first wiring layers is provided, wherein each first wiring layer includes a signal line. Conductive paste blocks are disposed in the base layer and on both sides of the signal line; and a first double-sided copper laminate is stacked on each side of the double-sided circuit substrate, disposing the signal line in the groove. The conductive paste blocks are pressed electrically connect same to the second copper plating portions. The present disclosure further provides a circuit board.

Abstract: A method for manufacturing a circuit board with narrow conductive traces and narrow spaces between traces includes a base layer and two first wiring layers disposed on opposite surfaces of the base layer. Each first wiring layer includes a first bottom wiring and a first electroplated copper wiring. The first bottom wiring is formed on the base layer. The first bottom wiring includes a first end facing the base layer, a second end opposite to the first end, and a first sidewall connecting the first end and the second end. The first electroplated copper wiring covers the second end and the first sidewall of the first bottom wiring.

Abstract: Provided are a display panel and a display device. The display panel has a display region and includes a substrate, light-emitting elements located in the display region, pixel circuits, and at least one driving circuit. The light-emitting elements, the pixel circuits and the at least one driving circuit are located at a side of the substrate. The light-emitting elements are connected to the pixel circuits, and each driving circuit includes shift registers. The pixel circuits includes at least one first pixel circuit including a first driving circuit, and the at least one first pixel circuit and at least one shift register are located in the display region. In the display region, the at least one first pixel circuit is arranged at a side of the shift registers of the first driving circuit close to an edge of the display panel.

Abstract: Aspects of the present disclosure provide an automated labeling system. For example, the automated labeling system can include an automated labeling module (ALM) configured to receive wireless signals and ground truth of learning object and label the wireless signals with the ground truth when receiving the ground truth to generate labeled training data. The automated labeling system can also include a training database coupled to the ALM. The training database can be configured to store the labeled training data.

Abstract: A wireless charging assembly configured to support and charge an electronic device. The wireless charging assembly includes a wireless charging host and a fan device. The wireless charging host includes a housing and a wireless charging assembly. The housing includes a supporting surface and an accommodation space. The supporting surface faces away from the accommodation space. The supporting surface is configured to support the electronic device. The wireless charging assembly is disposed in the accommodation space and configured to charge the electronic device. The fan device includes a casing and a fan. The fan is disposed in the casing. The casing is disposed on a side of the housing. The fan is configured to blow an airflow to the supporting surface.

Abstract: A method for voice wakeup is provided, which includes: obtaining original first microphone data; performing first-stage processing based on the first microphone data to obtain first wakeup data, wherein the first-stage processing includes first-stage separation processing and first-stage wakeup processing that are based on a neural network model; performing second-stage processing based on the first microphone data to obtain second wakeup data when the first wakeup data indicates that pre-wakeup succeeds, wherein the second-stage processing includes second-stage separation processing and second-stage wakeup processing that are based on the neural network model; and determining a wakeup result based on the second wakeup data. According to this application, a two-stage separation and wakeup solution is designed, e.g.

Abstract: A continuous mining and delayed filling mining method for a deep ore body masonry structure is provided, comprising: dividing an ore body into ore blocks along a trend, internally dividing each ore block into stopes with square masonry structures, and reserving a rib pillar between the ore blocks; arranging an ore block conveyor belt gallery and a stope conveyor belt gallery at the lower parts of the ore blocks, arranging ore block crossheading and stope crossheading at the upper parts of the ore blocks, mining the stopes in the sequence from the foot wall to the hanging wall. In accordance with the present disclosure, adverse effects caused by deep high geo-stress and high geo-temperature on mining operation can be effectively overcome. The method has the advantages of low carbon and environmental protection, safety of recovery operation, high mechanization of stope operation, low labor intensity of manual operation and the like.

Abstract: The disclosure relates to the field of electric vehicles, and specifically provides a target detection method, a storage medium, an electronic device, and a vehicle, to solve a problem of how to improve a processing speed, generalization, and an anti-interference capability of point cloud data to implement rapid and accurate three-dimensional target detection. For this purpose, the method of the disclosure includes: voxelizing point cloud data to be processed, and obtaining a target detection result by using a target detection network including a sparse 3D convolutional network, a two-dimensional detection network, and a detection head network in sequence. According to the method of the disclosure, point cloud data is voxelized based on voxel positions, thereby reducing dependence of the point cloud data on an absolute distance, and improving anti-interference and generalization of the network.

Abstract: The disclosure relates to the technical field of autonomous driving, and specifically provides a target detection method, a computer device, a computer-readable storage medium, and a vehicle, to solve the problem of detecting a target in a timely and accurate manner.

Abstract: The disclosure provides a drivable area detection method, a computer device, a storage medium, and a vehicle, the method of the disclosure includes: obtaining three-dimensional point clouds of a driving environment of a vehicle; estimating a ground height of the current environment based on the three-dimensional point clouds of the current environment by using a ground height estimation model based on a convolutional neural network; determining, based on the ground height, non-ground point clouds not belonging to the ground in the three-dimensional point clouds; performing obstacle detection on the non-ground point clouds to obtain one or more obstacles; and determining a drivable area in the driving environment of the vehicle based on a position of an obstacle.

Abstract: A coupling alignment device and method for a laser chip and a silicon-based optoelectronic chip are disclosed. The device comprises a transfer mold which includes a substrate, first protrusions, and second protrusions. The first protrusions are provided with through holes and are used for being clamped into first recesses in the laser chip; and the second protrusions are used for being clamped into second recesses in the silicon-based optoelectronic chip. The coupling alignment is achieved by etching the first recesses in the laser chip, etching the second recesses in the silicon-based optoelectronic chip, etching the first protrusions, the second protrusions, and the through holes in the transfer mold. A flip-chip suction nozzle is connected with the transfer mold, which is in alignment with the laser chip, and picks up the laser chip by means of the through holes.

Abstract: A wireless charger is configured to charge a mobile device and be connected to an air conditioner. The wireless charger includes a casing, a wireless charging module, and a valve assembly. The casing includes a first accommodation space, a second accommodation space, and an air inlet. The first accommodation space is in fluid communication with the second accommodation space, the first accommodation space is configured to accommodate the mobile device, and the air inlet is in fluid communication with the first accommodation space and the second accommodation space. The wireless charging module is located in the second accommodation space and configured to charge the mobile device. The valve assembly is mounted to the air inlet and configured to be connected to the air conditioner.