Abstract: A station (STA) for communicating with an Access Point (AP) in a wireless communication system is provided. The STA includes a wireless transceiver and a processor. The wireless transceiver performs wireless transmission and reception to and from the AP. The processor receives allocation information indicating a first user block for the STA in a first RU of an MU-PPDU from the AP via the wireless transceiver, and the first RU includes multiple user blocks allocated for different STAs. Also, the processor sends Uplink (UL) data or receives Downlink (DL) data in the first user block to or from the AP via the wireless transceiver according to the allocation information.

Abstract: A preparation method of a composite anode material of micrometer-sized carbon-coated silicon and carbon includes: subjecting micrometer-sized silicon particles to a chemical vapor deposition reaction under a gas atmosphere containing carbon to obtain carbon-coated first micrometer-sized silicon particles; dispersing the carbon-coated first micrometer-sized silicon particles in a first mixed solvent to obtain a dispersed solution; adding alkali into the dispersed solution and heating the dispersed solution to obtain carbon-coated second micrometer-sized silicon particles; dispersing the carbon-coated second micrometer-sized silicon particles and graphene oxide in a second mixed solvent that are subjected to a hydrothermal reaction to obtain a composite hydrogel of reduced graphene oxide, silicon, and carbon; and heating the hydrogel to obtain the composite anode material.

Abstract: The present disclosure relates to a trunk control method and apparatus, a vehicle, an electronic device, and a storage medium. The method includes acquiring sensing data of a rear area of a vehicle; detecting a target object in the rear area of the vehicle according to the sensing data; and controlling a trunk of the vehicle to close in response to the trunk being in an open state and not detecting the target object.

Abstract: A method and apparatus for controlling vehicle display screen, and a storage medium are provided. The method includes that: image information of an occupant in a vehicle cabin is acquired; a rotation angle of a target part of the occupant is detected based on the image information, the target part being head, face or eyes; and in response to determining, according to the rotation angle of the target part, that the target part turns to a vehicle display screen in the vehicle cabin, the vehicle display screen is controlled to be lit up.

Abstract: A method for manufacturing graphene-based material is disclosed. A graphene oxide dispersion includes graphene oxide dispersed in solvent. A hydrogen sulfide gas is introduced to the graphene oxide dispersion at a reacting temperature to achieve a graphene dispersion. The hydrogen sulfide reduces graphene oxide into graphene, and elemental sulfur produced from the hydrogen sulfide is deposited on surfaces of the graphene. The solvent and elemental sulfur are removed to achieve a graphene composite material.

Abstract: A method for making graphene-based highly dense but porous carbon material with a high degree of hardness includes forming a sol by dispersing a graphene-based component in a solvent; preparing a graphene-based gel by reacting the sol in a reacting container at a temperature of about 20° C. to about 500° C. for about 0.1 hours to about 100 hours; and drying the gel at a temperature of about 0° C. to about 200° C. to obtain a material. A graphene-based porous carbon material and applications thereof are also disclosed.

Abstract: A method for manufacturing graphene-based material is disclosed. A graphene oxide dispersion includes graphene oxide dispersed in solvent. A hydrogen sulfide gas is introduced to the graphene oxide dispersion at a reacting temperature to achieve a graphene dispersion. The hydrogen sulfide reduces graphene oxide into graphene, and elemental sulfur produced from the hydrogen sulfide is deposited on surfaces of the graphene. The solvent and elemental sulfur are removed to achieve a graphene composite material.

Abstract: A method for manufacturing graphene-based material is disclosed. A graphene oxide dispersion includes graphene oxide dispersed in solvent. A hydrogen sulfide gas is introduced to the graphene oxide dispersion at a reacting temperature to achieve a graphene dispersion. The hydrogen sulfide reduces graphene oxide into graphene, and elemental sulfur produced from the hydrogen sulfide is deposited on surfaces of the graphene. The solvent and elemental sulfur are removed to achieve a graphene composite material.

Abstract: A method for manufacturing graphene-based material is disclosed. A graphene oxide dispersion includes graphene oxide dispersed in solvent. A hydrogen sulfide gas is introduced to the graphene oxide dispersion at a reacting temperature to achieve a graphene dispersion. The hydrogen sulfide reduces graphene oxide into graphene, and elemental sulfur produced from the hydrogen sulfide is deposited on surfaces of the graphene. The solvent and elemental sulfur are removed to achieve a graphene composite material.

Abstract: A management device includes an environment module, a status module, and a solution module. The environment module is used to determine whether one or more of the factors relevant to a working environment meet a first condition. The status module is used to determine whether a working status is normal. The solution module is used to provide solutions corresponding to various operating or non-operating states. A management method is also provided.

Abstract: A method for making graphene-based highly dense but porous carbon material with a high degree of hardness includes forming a sol by dispersing a graphene-based component in a solvent; preparing a graphene-based gel by reacting the sol in a reacting container at a temperature of about 20° C. to about 500° C. for about 0.1 hours to about 100 hours; and drying the gel at a temperature of about 0° C. to about 200° C. to obtain a material. A graphene-based porous carbon material and applications thereof are also disclosed.

Abstract: The invention provides a method and apparatus for obtaining hierarchical information of planar data. The method comprises mapping at least one data item from a same data set in the planar data to at least one node in a tree structure formed by a structured terminology system. The method also comprises obtaining at least one sub tree structure in the tree structure, each of the at least one sub tree structure taking the at least one node as all of its leaf node. The method also comprises selecting a target tree structure from the at least one sub tree structure and obtaining hierarchical information in the target tree structure. An apparatus corresponding to the above method is also provided. With the above method and apparatus, hierarchical information of data items may be obtained from planar organized data to facilitate subsequent and further analysis and management.

Abstract: A method for making graphene-based material is disclosed. A graphene oxide dispersion includes graphene oxide dispersed in solvent. A hydrogen sulfide gas is introduced to the graphene oxide dispersion at a reacting temperature to achieve a graphene dispersion. The hydrogen sulfide reduces graphene oxide into graphene, and elemental sulfur produced from the hydrogen sulfide is deposited on surfaces of the graphene. The solvent is removed to achieve a graphene composite material. Further, a graphene composite material and a lithium sulfur battery using the graphene composite material are also disclosed.

Abstract: The invention provides a method and apparatus for obtaining hierarchical information of planar data. The method comprises mapping at least one data item from a same data set in the planar data to at least one node in a tree structure formed by a structured terminology system. The method also comprises obtaining at least one sub tree structure in the tree structure, each of the at least one sub tree structure taking the at least one node as all of its leaf node. The method also comprises selecting a target tree structure from the at least one sub tree structure and obtaining hierarchical information in the target tree structure. An apparatus corresponding to the above method is also provided. With the above method and apparatus, hierarchical information of data items may be obtained from planar organized data to facilitate subsequent and further analysis and management.

Abstract: The present invention is directed to a process for preparing single crystal silicon, in ingot or wafer form, wherein crucible rotation is utilized to control the average axial temperature gradient in the crystal, G0, as a function of radius (i.e., G0(r)), particularly at or near the central axis. Additionally, crucible rotation modulation is utilized to obtain an axially uniform oxygen content therein.

Abstract: The present invention is directed to a process for preparing single crystal silicon, in ingot or wafer form, wherein crucible rotation is utilized to control the average axial temperature gradient in the crystal, G0, as a function of radius (i.e., G0(r)), particularly at or near the central axis. Additionally, crucible rotation modulation is utilized to obtain an axially uniform oxygen content therein.