Abstract: A silicon-based anode material, a preparation method thereof and a lithium ion battery are provided. The preparation method of the silicon-based anode material includes: passing a silicon substrate material through a vapor deposition gas to coat the surface of the silicon substrate material with a carbon deposition layer, the vapor deposition gas includes a first carbon source gas and a second carbon source gas, the volume percentage of the first carbon source gas and the second carbon source gas in the vapor deposition gas increases or decreases at different reaction stages for forming the carbon deposition layer. The side of the carbon deposited layer close to the silicon base material is more or less dense than the other side of the carbon deposited layer. The coating layer on the surface of the silicon-based anode material has a continuously changing junction, thereby greatly improving the cycling stability of the material.

Abstract: A method for allocating data processing tasks, an electronic device, and a readable storage medium are provided, which relate to the fields of computer vision and artificial intelligence. The method includes: determining a plurality of data processing tasks of a target application for a graphics processor; and allocating, by using a load balancing strategy, the plurality of data processing tasks to a plurality of worker processes created for the target application, wherein the plurality of worker processes are pre-configured with a corresponding graphics processor resource.

Abstract: A silicon-based anode material, a preparation method thereof and a lithium ion battery are provided. The preparation method of the silicon-based anode material includes: passing a silicon substrate material through a vapor deposition gas to coat the surface of the silicon substrate material with a carbon deposition layer, the vapor deposition gas includes a first carbon source gas and a second carbon source gas, the volume percentage of the first carbon source gas and the second carbon source gas in the vapor deposition gas increases or decreases at different reaction stages for forming the carbon deposition layer. The side of the carbon deposited layer close to the silicon base material is more or less dense than the other side of the carbon deposited layer. The coating layer on the surface of the silicon-based anode material has a continuously changing junction, thereby greatly improving the cycling stability of the material.

Abstract: A silicon-based anode material for secondary batteries, a preparation method thereof and a secondary battery are provided. The silicon-based anode material includes: an inner core including an Si particle and silicon oxide SiOx1, where 0<x1 <2, a first shell layer including a compound of the general formula MySiOz (0<y?4, 0<z?5, and z?x1) and a C particle, wherein the first shell layer covers the inner core, and the contents of M and C in the first shell layer gradually increase from a side thereof close to the inner core to another side thereof far away from the inner core; and a second shell layer including a carbon film layer or a composite film layer formed by a carbon film layer and a conductive additive, the second shell layer covers the first shell layer. The first charge-discharge cycle capability of the silicon-based anode material is improved, and the manufacturing cost is reduced.

Abstract: The present invention provides a preparation method for ultra-high wear-resistant graphene epoxy resin composites, belonging to the technical field of macroscopic lubrication. The present invention firstly adopts a physical blending method to uniformly mix graphene powder and epoxy resin, and then cures the mixture at high temperature to prepare graphene epoxy resin composites with ultra-low wear rate. The present invention adopts a solution blending method to uniformly combine graphene and epoxy resin, improving the friction and wear performance of epoxy resin and expanding the application of epoxy resin in the field of tribology.

Abstract: A method of in-situ TEM nanoindentation for a damaged layer of silicon is disclosed. Wet etching and ion beam lithography are used for preparing a silicon wedge sample. An etched silicon wedge is thinned and trimmed by a focused ion beam; thinning uses ion beam of 30 kV: 50-80 nA, and trimming uses ion beam of 5 kV: 1-6 pA; and the top width of the silicon wedge is 80-100 nm. The sample is fixed on a sample holder of an in-situ TEM nanomechanical system by using a conductive silver adhesive. The sample is indented with a tip in the TEM, so that the thickness of the damaged layer of the sample is 2-200 nm; and an in-situ nanoindentation experiment is conducted on the damaged layer of the sample in the TEM.

Abstract: A method of in-situ TEM nanoindentation for a damaged layer of silicon is disclosed. Wet etching and ion beam lithography are used for preparing a silicon wedge sample. An etched silicon wedge is thinned and trimmed by a focused ion beam; thinning uses ion beam of 30 kV: 50-80 nA, and trimming uses ion beam of 5 kV: 1-6 pA; and the top width of the silicon wedge is 80-100 nm. The sample is fixed on a sample holder of an in-situ TEM nanomechanical system by using a conductive silver adhesive. The sample is indented with a tip in the TEM, so that the thickness of the damaged layer of the sample is 2-200 nm; and an in-situ nanoindentation experiment is conducted on the damaged layer of the sample in the TEM.

Abstract: A method and device for displaying a control belongs to the field of audio adjustment. At least one adjustment control is displayed on an equalizer displaying interface, with the adjustment control including a slide channel and a slider, and with the adjustment control being used for adjusting an audio signal amplifying value at a frequency band according to a position of the slider on the slide channel. The position of the slider on the slide channel is obtained when a sliding signal of the slider is received. A displaying manner of the adjustment control is adjusted according to the position of the slider.

Abstract: Embodiments of the present application disclose a data pushing method performed at a server. The server obtains a plurality of pieces of theme data that is to be selected when target push data is pushed, the theme data being used for displaying different theme pages of the target push data; selects, from the theme data, target theme data that is used when the target push data is pushed; and pushes the target push data to a second client and causes displaying, on a first client, a first target theme page that is obtained after the target push data is pushed when a first instruction of the first client is received to push the target push data to the second client, and causes displaying a second target theme page corresponding to the first target theme page on the second client after the second client receives the target push data.

Abstract: Disclosed are a method and a system for matching an electroencephalogram and music files which compares the scaling index ? of an electroencephalogram with the long-range correlation index ?, and matches music file with the electroencephalogram if the scaling index and the long-range correlation index close to equal so as to find a music file matched with a measured electroencephalogram automatically. The method and system in accordance with the present invention may automatically find music files matching with human brain statements in real time by measuring an electroencephalogram, and then guide people relieve stress and relax effectively.

Abstract: A method for bending test of a flexible screen is disclosed, including: connecting the flexible screen to a mounting device; conducting a mechanical extrusion test to the flexible screen to bend the flexible screen, in which an extrusion point for the mechanical extrusion test is away from connection points between the flexible screen and the mounting device; and conducting a bending performance detection to the flexible screen. And a system for bending test of a flexible screen is also disclosed. The bending performance of the flexible screen can be tested by simulating an environment for the flexible screen in the mechanical extrusion test, and compared with the traditional methods and apparatuses for bending test of a flexible screen, the method and system for bending test of a flexible screen according to the present disclosure are convenience for operation and low cost in testing.

Abstract: A method and device for displaying a control belongs to the field of audio adjustment. At least one adjustment control is displayed on an equalizer displaying interface, with the adjustment control including a slide channel and a slider, and with the adjustment control being used for adjusting an audio signal amplifying value at a frequency band according to a position of the slider on the slide channel. The position of the slider on the slide channel is obtained when a sliding signal of the slider is received. A displaying manner of the adjustment control is adjusted according to the position of the slider.

Abstract: A method for bending test of a flexible screen is disclosed, including: connecting the flexible screen to a fixing device to form two connection ends; and conducting an extrusion test to the flexible screen, including moving the fixing device to change the distance between the connection ends of the fixing device so that the distance is less than or equal to the length of the flexible screen between the two connection ends. A system for bending test of a flexible screen is also disclosed. The above method and system for bending test of a flexible screen, which can simulate an operational environment of the flexible screen by moving the fixing device to conduct an extrusion test to the flexible screen, can reduce testing costs compared with the traditional methods and apparatuses for bending test of a flexible screen.

Abstract: A method for bending test of a flexible screen is disclosed, including: connecting the flexible screen to a fixing device to form two connection ends; and conducting an extrusion test to the flexible screen, including moving the fixing device to change the distance between the connection ends of the fixing device so that the distance is less than or equal to the length of the flexible screen between the two connection ends. A system for bending test of a flexible screen is also disclosed. The above method and system for bending test of a flexible screen, which can simulate an operational environment of the flexible screen by moving the fixing device to conduct an extrusion test to the flexible screen, can reduce testing costs compared with the traditional methods and apparatuses for bending test of a flexible screen.

Abstract: A method for bending test of a flexible screen is disclosed, including: connecting the flexible screen to a mounting device; conducting a mechanical extrusion test to the flexible screen to bend the flexible screen, in which an extrusion point for the mechanical extrusion test is away from connection points between the flexible screen and the mounting device; and conducting a bending performance detection to the flexible screen. And a system for bending test of a flexible screen is also disclosed. The bending performance of the flexible screen can be tested by simulating an environment for the flexible screen in the mechanical extrusion test, and compared with the traditional methods and apparatuses for bending test of a flexible screen, the method and system for bending test of a flexible screen according to the present disclosure are convenience for operation and low cost in testing.