Abstract: An open earphone includes an acoustic driver for generating two sounds with opposite phases; a housing for accommodating the acoustic driver; and a suspension structure for fixing the housing in a position near an ear of a user without blocking an ear canal of the user. The housing is provided with two sound holes for outputting each of the two sounds with opposite phases. The housing includes a body and a baffle. The body defines a first cavity for housing the acoustic driver. The baffle is connected to the body and extended in a direction toward the ear canal of the user, and defines a second cavity with the auricle of the user. The two sound holes are disposed respectively inside and outside the second cavity.

Abstract: An electrode for an electrochemical cell includes an electroactive material and an electrolyte that includes a lithium-salt additive and a solvent. The electroactive material is represented by: xLi2MnO3·(1?x)LiMO2 where M is a transition metal selected from the group consisting of: nickel (Ni), manganese (Mn), cobalt (Co), aluminum (Al), iron (Fe), and combinations thereof and 0.01?x?0.99. The solvent is selected from the group consisting of: ethylene carbonate (EC), fluoroethylene carbonate (FEC), dimethyl carbonate (DMC), diethyl carbonate (DEC), ethylmethylcarbonate (EMC), ethylmethylcarbonate (EMC), ethylene carbonate (EC), propylene carbonate (PC), vinyl ethylene carbonate (VEC), tetramethylene sulfone (TMS), ethyl methyl sulfone (EMS), acetonitrile (AN), butyronitrile (BN), and combinations thereof. The electrolyte includes between about 0.001 wt. % and about 10 wt. % of the lithium-salt additive and has an overall salt concentration between about 0.1 mol/L and about 10 mol/L.

Abstract: A foldable display device may have housing portions coupled by a hinge. A flexible display may overlap the hinge. The hinge may have portions that rotate relative to each other about rotational axes that lie above the hinge to help reduce stress to the display. The hinge may have gear plates with interlocked teeth that synchronize rotational movement between left and right halves of the hinge. The hinge may also have asymmetric friction clips that impose different amounts of rotational friction to the hinge depending on the direction of rotation of the hinge.

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: A brazing joint, a brazing method, and a device for promoting solder rheology and gas overflow are provided. The brazing joint includes a first base metal, a second base metal, and a brazing seam located therebetween. The brazing seam is formed by filling a solder in a gap formed by welding surfaces of the first and the second base metal and melting it to connect the first and the second base metal. The brazing seam is a concave-shaped brazing seam. The gap defines a first distance and a second distance, the first distance is located at an edge of the gap, the second distance is located at the edge or an inside of the gap, the first distance is greater than the second distance, and a curved surface is formed between the location of the first distance and the location of the second distance for transition.

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: An integrated device and method for enrichment, purification and separation of microplastics in a secondary effluent are provided. This integrated device comprises a micro-spray system and a filtering system with multi-stage filtering units, and marked screen meshes were installed in each filtering unit. The microplastics in secondary effluent are enriched on the surface of the marked screen meshes through the retaining effect. Then, lower concentration of alkali, acid or oxidant combined with the heat treatment to weaken the interaction forces between the inorganic/organic foulants and the enriched microplastic. On this basis, the micro-spray system was used to rinse the multistage filtration system, which generated shear force to carry away the foulants on the surfaces of the enriched microplastics, thereby achieving the purification and separation of microplastics synchronously. These are performed in the marked screen meshes, in which the microplastic are not subject to any path transfer or loss.

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 methods, devices and systems for route deviation quantification and vehicular route learning based thereon. In some examples, there is provided a method for route deviation quantification of a suggested route. The method comprises: obtaining a ground truth route based on a filtered trajectory, the filtered trajectory including an inferred location of origin and an inferred location of destination; obtaining a suggested route generated based on the inferred location of origin and the inferred location of destination; quantifying a deviation of the suggested route from the ground truth route by calculating an off course ratio based on a combined length of road segments in the suggested route that are matched to corresponding road segments in the ground truth route and a combined length of road segments in the ground truth route.

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

Abstract: A modeling method and a modeling system for an optical proximity correction (OPC) model and an OPC method based on the OPC model are disclosed. During the creation of the OPC model, variables related to pattern density of a test pattern are added. As a result, the created innovative OPC model includes a mapping relationship between a critical dimension of the pattern and the pattern density-related variables. After that, the OPC model is used to determine critical dimension (CD) distortion of the test pattern in environments with different pattern densities, which is then compared with a designed CD for the test pattern, thereby determining an OPC correction amount for the test pattern. In this way, accurate OPC correction can be achieved, resulting in an improved process window for the layout and effectively increased yield of the product.

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 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: 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: 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 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: 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 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 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.