Abstract: An open-ear earphone includes a housing, a chamber is provided inside the housing, a speaker is provided inside the chamber and divides the chamber into a front chamber and a rear chamber. The housing is provided with a first sound hole and a second sound hole. The front chamber is communicated to the outside through the first sound hole, and the rear chamber is communicated to the outside through the second sound hole. The rear chamber includes a first volume down chamber and a second volume down chamber communicated to the first volume down chamber, and the first volume down chamber is located between the speaker and the second volume down chamber. The sound wave in backward motion generated by the speaker is transmitted to the outside from the second sound hole after being reduced by the first volume down chamber and the second volume down chamber.

Abstract: The present disclosure provides a data processing method, apparatus and device and a storage medium.

Abstract: A composite biochar for controlling heavy metal pollution and a process for producing the same, in particular enrichment of heavy metals such as arsenic and lead in soil with centipede grass, thereafter centipede grass is sintered with hydroxyapatite, sepiolite and chitosan, and compounded with microorganisms to produce said composite biochar; through the process of the present invention, heavy metals such as arsenic and lead are stably enriched or coated in said composite biochar, significantly reducing the potential hazard of arsenic and lead to the environment, and also providing new developmental ideas for treating heavy metal biomass.

Abstract: This application provides a communication method, apparatus, and device, and a storage medium. The method includes: A first communication device sends first information to a second communication device, where the first information includes transmission indication information and at least one first code block group CBG of a first transport block TB, and the transmission indication information indicates a length of the first TB and/or a location of the at least one first CBG in the first TB. Based on the transmission indication information in the first information, at least one CBG of the first TB can be transmitted between the first communication device and the second communication device, to avoid always transmitting the entire TB. This reduces information transmission duration, improves transmission efficiency, and reduces resource consumption, to reduce power consumption of the communication devices.

Abstract: A porous biochar for improving heavy pollution and a method for producing the same. Said porous biochar is prepared as follows: arrowhead, which has excellent enrichment of lead, is used to absorb heavy metal lead in polluted water or artificial wetlands, simultaneously absorb heavy metal cadmium, thereafter is dried and treated as a biomass, and then the biomass is calcined in stages with a passivating agent in a high temperature environment, so as to heavy metals such as lead and cadmium be stably coated or enriched in a biochar, which is mixed with Pseudomonas aeruginosa having high resistant, to obtain the porous biochar; the porous biochar has high specific surface area, high porosity and excellent mechanical properties, is very stable under different acid-base environments and oxidizing conditions.

Abstract: An information transmission method and apparatus are provided, to reduce feedback overheads of a master node to a slave node. The information transmission method and apparatus are applied to intelligent driving or assisted driving. The method in embodiments of this application includes: each of a plurality of second nodes sends a first message to a first node. Each second node may send at least one first message, and there are N first messages in total. After receiving the N first messages, the first node may send, in multicast mode on a first resource, a second message that includes N pieces of first feedback information that are in a one-to-one correspondence with the N first messages. The method in this application may be applied to the internet of vehicles, for example, vehicle-to-everything V2X, long term evolution-vehicle LTE-V, or vehicle-to-vehicle V2V.

Abstract: A structural flame retardant high strength low exothermic polymer grouting material for consolidating, belonging to a technical field of polyurethane material, is produced by combined the polyether polyol and the modified isocyanate in a weight ratio of 100:(100-160), leading to internal reaction temperature ?100° C., strength ?60 mPa, bonding ?3 mPa, oxygen index ?28% while no halogen and no effect on water quality, odor level (80° C.) ?3.5, and fog test ?5 mg (which means no physical additive flame retardant is diffused into the environment). In particular, with no halogen, which is known as environmental hormones, in the plasticizers, there will be less combustion smoke, wherein the present invention will not release corrosive or irritating hydrogen halide gas, nor produce toxic carcinogens polybrominated benzoxins and polybrominated dibenzofurans, thereby avoiding the long-term impact of the material on the environment.

Abstract: A display panel and a method for adjusting brightness thereof, and a display apparatus. The display panel includes a first and a second display area. A pixel density of the first display area is less than a pixel density of the second display area. The display panel includes a power supply unit including a power supply output terminal; first power supply lines electrically connected to sub-pixels of the first display area; second power supply lines electrically connected to sub-pixels of the second display area; and a voltage adjusting unit. First ends of the second power supply lines are electrically connected to the power supply output terminal, second ends of the second power supply lines are electrically connected to the first power supply lines via the voltage adjusting unit, and the voltage adjusting unit is configured to adjust a voltage on the first power supply lines.

Abstract: A computing system with a first instruction of an instruction set architecture (ISA) for write-back and invalidation in a hierarchical cache structure based on one single designated key identification code, and a second instruction of ISA for write-back and invalidation in the hierarchical cache structure based on a plurality of designated key identification codes is shown. A decoder transforms the first or second instruction into at least one microinstruction. Based on the at least one microinstruction, one write-back and invalidation request is provided corresponding to each designated key identification code, to be passed to the hierarchical cache structure through a memory ordering buffer. For each write-back and invalidation request, the cache line write-back and invalidation regarding a designated key identification code is performed on a last-level cache first, and then is performed on the in-core cache modules.

Abstract: An approach is provided in which the approach builds a combination model that includes a normal status model and an abnormal status model. The normal status model is built from a set of time-sequenced normal status records and the abnormal status model is built from a set of time-sequenced abnormal status records. The approach computes a set of time-sequenced coefficient combination values of the normal status model and the abnormal status model based on applying a set of fitting coefficient characteristics to the normal status model and the abnormal status model. The approach performs goal seek analysis on a system using the combination model and the set of time-sequenced coefficient combination values.

Abstract: A texture recognition apparatus and an electronic apparatus are provided. The texture recognition apparatus has a touch side surface, and includes a light source array, an image sensor array and a light shielding matrix, the light source array includes a plurality of light sources; the image sensor array includes a plurality of image sensors, the plurality of image sensors are configured to receive light emitted from the plurality of light sources and reflected by a texture to the plurality of image sensors; the light shielding matrix includes a plurality of light shielding patterns arranged in an array, each of the plurality of image sensors includes a photosensitive element; the plurality of light sources do not overlap with the plurality of light shielding patterns, a photosensitive element of each of the plurality of image sensors at least partially overlaps with at least one or the plurality of light shielding patterns.

Abstract: A backup processing method and a server are provided. The method is applied to a backup system, and the backup system includes a plurality of backup servers. The method includes: dividing, by a master backup server in the plurality of backup servers, a backup task into a plurality of child backup tasks; allocating, by the master backup server, each child backup task to each of the plurality of backup servers; and sending, by the master backup server, the plurality of child backup tasks to respective corresponding backup servers. According to this method, a data backup rate can be improved.

Abstract: A manufacturing method of a semiconductor super-junction device includes the following steps: An n-type substrate is etched in a self-aligning manner using a first insulating layer and a second insulating layer as a mask to form a second groove in the n-type substrate. A gate structure is formed in the second groove.

Abstract: The present disclosure mainly relates to a headphone. The headphone may include a supporting assembly and a core module connected with the supporting assembly. The supporting assembly may be configured to support the core module to be worn at a wearing position. The core module may include a core housing, a transducer device, and a vibration panel. The transducer device may be provided in a accommodating cavity of the core housing, and the vibration panel may be connected with the transducer device and configured to transmit a mechanical vibration generated by the transducer device to a user.

Abstract: The present disclosure provides a self-learning collaborative control method for active steering and yaw moment for a motor vehicle, including a first step of constructing fundamental formulas which are stored in a vehicle ECU, and a second step of calculating an active steering angle ?C and a yaw moment Mc on line by the vehicle ECU according to following sub-steps during a driving process of the motor vehicle, and controlling a driving state of the motor vehicle according to ?C and Mc. The second step includes a first sub-step of collecting raw real-time parameter values, a second sub-step of performing calculation by the identifier and the control target reference model, a third sub-step of calculating ?C and Mc. The present disclosure can realize the self-learning collaborative control of active steering and yaw moment without requiring a system control model and correct a driver's steering operation.

Abstract: The present disclosure mainly relates to a headphone. The headphone may include a supporting assembly and a core module connected with the supporting assembly. The supporting assembly may be configured to support the core module to be worn at a wearing position. The core module may include a core housing, a transducer device, and a vibration panel. The transducer device may be provided in a accommodating cavity of the core housing, and the vibration panel may be connected with the transducer device and configured to transmit a mechanical vibration generated by the transducer device to a user.

Abstract: The disclosure relates to a method, apparatus, readable medium, and electronic device for live stream interaction. The method includes: in accordance with displaying of a first control at a first target position of a live stream interface, obtaining a first duration during which a user watches the live stream interface; in accordance with a determination that the first duration is greater than or equal to a first predetermined duration threshold, switching the first control to a second control, and displaying the second control at a second target position of the live stream interface; and in response to a first operation command performed by the user on the second control, allocating a virtual resource to the user. In this way, interaction modes of a live stream room are enriched, and an activity level of the live stream room can be improved.

Abstract: The present disclosure mainly relates to a headphone. The headphone may include a supporting assembly and a core module connected with the supporting assembly. The supporting assembly may be configured to support the core module to be worn at a wearing position. The core module may include a core housing, a transducer device, and a vibration panel. The transducer device may be provided in a accommodating cavity of the core housing, and the vibration panel may be connected with the transducer device and configured to transmit a mechanical vibration generated by the transducer device to a user.

Abstract: A phase shifter and a method for operating the same, an antenna and a communication device are provided. The phase shifter includes: a first substrate and a second substrate opposite to each other; a dielectric layer between the first substrate and the second substrate; a first electrode on a side of the first substrate proximal to the second substrate; a second electrode on a side of the second substrate proximal to the first substrate; and a ground electrode on a side of the second substrate distal to the first substrate. The dielectric layer includes liquid crystal molecules, and the first electrode and the second electrode are configured to control rotation of the liquid crystal molecules according to different voltages respectively received by the first electrode and the second electrode. The second electrode has a one-piece structure.