Abstract: A charging method includes: obtaining a first voltage of a charging port of a vehicle; determining a target buck value based on the first voltage, adjusting a voltage on a buck side of a buck-boost converter of the vehicle based on the target buck value, and sending the target buck value to a charging pile to enable the charging pile to determine an output voltage of the charging pile based on the target buck value; increasing a charging demand current of the vehicle to a maximum allowable charging current of the vehicle; and charging the vehicle according to the maximum allowable charging current.

Abstract: The present disclosure provides a hydrophilic fiber membrane with a sustained-release drug, and belongs to the field of biological materials. The present disclosure provides a hydrophilic fiber membrane with a sustained-release drug, including a fiber with a core-shell structure, where a core of the fiber includes curcumin and a first spinnable polymer, and a shell of the fiber includes polyethylene glycol and a second spinnable polymer; and in the shell, the polyethylene glycol and the second spinnable polymer have a mass ratio of not greater than 1:12. In the present disclosure, the fiber membrane has a core-shell structure, the curcumin is provided in the core, and the shell prevents a rapid release of the curcumin in an early stage, thereby delaying a release rate of the curcumin to prevent the drug from forming a burst release in the early stage and causing toxic reactions.

Abstract: The present disclosure provides a fiber membrane and a preparation method and use thereof, and belongs to the field of biological materials. The fiber membrane includes a fiber with a core-shell structure, where a core of the fiber includes simvastatin and a first spinnable polymer, and a shell of the fiber includes hydroxyapatite and a second spinnable polymer. In the fiber, a release of the simvastatin mainly depends on a rate of water invasion. After water invades the fiber, the simvastatin in the fiber leaves the fiber with the diffusion of water. In the present disclosure, a barrier function of the shell prevents moisture from entering the core. Therefore, the simvastatin in the core cannot leave the fiber with the diffusion of water molecules in an early stage, and a release rate of drugs is slowed down in the early stage, thereby controlling sustained release of the drugs.

Abstract: Disclosed is a charging station capable of realizing mutual capacity aid, which comprises a plurality of charging units, a power bus and a mutual capacity aid bus. Each charging unit is powered by the power bus, and each charging unit provides mutual aid capacity for another charging unit through the mutual capacity aid bus or receives mutual aid capacity from other charging units through the mutual capacity aid bus. The charging station can realize rapid charging of electric vehicles, and can also realize mutual capacity aid.

Abstract: Disclosed are a group of single nucleotide polymorphism (SNP) loci and a method for identifying biogeographic origins of East Asian populations, and belong to the technical field of gene identification. The application takes single nucleotide polymorphism molecular genetic markers as objects, systematically selects loci with high genetic differentiation in the East Asian populations of Beijing Han population, Southern Han population, Dai population, Japanese and Kinh Population from Vietnam, and constructs an efficient, simple and fast artificial intelligence model through the XGBoost machine learning algorithm for analyzing biogeographic origins of five East Asian populations.

Abstract: The present invention discloses a type of energy-absorbing rock bolt device with umbrella-shaped structure, which consists of a body of bolt, and one end of the said body of bolt is equipped with a preloaded system, as well as the other end of the said body of bolt is equipped with the first support system, in addition, the said body of bolt is equipped with several second support systems, and the said second support system is located between the said preloaded system and the said first support system; meanwhile, the said second support system consists of the first umbrella-shaped support system and the second umbrella support system.

Abstract: The present invention discloses a type of energy-absorbing rock bolt device with umbrella-shaped structure, which consists of a body of bolt, and one end of the said body of bolt is equipped with a preloaded system, as well as the other end of the said body of bolt is equipped with the first support system, in addition, the said body of bolt is equipped with several second support systems, and the said second support system is located between the said preloaded system and the said first support system; meanwhile, the said second support system consists of the first umbrella-shaped support system and the second umbrella support system.

Abstract: A backpack integrated with charging function, having a backpack body, shoulder straps, at least a side pocket and a mobile power bank; a protective cover is provided at an inner side of the backpack body at a position corresponding to the side pocket; a USB wire channel is provided between the protective cover and the side pocket; the USB wire channel is an inner channel formed between two pieces of adhesive, resilient and water-proof fabric bonded together.

Abstract: Disclosed is an anti-collision corner armor for a laptop bag, which comprises at least a corner armor internal body at a corner of the laptop bag, wherein the upper surfaces of the ends of the corner armor internal body extend outwards to form protruding parts, and the upper surface of the middle portion of the corner armor internal body extends inwards to form a groove part; under the effect of external force, the upper surface of the corner armor internal body can bend towards a laptop, the protruding parts act on the side edge of the laptop, and the groove part makes contact with a corner of the laptop. The anti-collision corner armor can effectively protect the laptop is arranged inside the laptop bag without affecting the appearance design of the laptop bag, and is low cost. Furthermore, the anti-collision corner armor has good compatibility and expandability with the laptop.

Abstract: A protective slot for protecting a notebook computer, having at least one inner component and an outer component; the outer component is placed inside a backpack, and the at least one inner component is nested inside the outer component; the at least one inner component and the outer component each has at least one open-type cavity for buffering; when the at least one inner component is nested into the outer component, at least one closed-type cavity is formed at the outer component for buffering.

Abstract: Disclosed is an anti-collision corner armor for a laptop bag, which comprises at least a corner armor internal body at a corner of the laptop bag, wherein the upper surfaces of the ends of the corner armor internal body extend outwards to form protruding parts, and the upper surface of the middle portion of the corner armor internal body extends inwards to form a groove part; under the effect of external force, the upper surface of the corner armor internal body can bend towards a laptop, the protruding parts act on the side edge of the laptop, and the groove part makes contact with a corner of the laptop. The anti-collision corner armor can effectively protect the laptop is arranged inside the laptop bag without affecting the appearance design of the laptop bag, and is low cost. Furthermore, the anti-collision corner armor has good compatibility and expandability with the laptop.

Abstract: A sealing device for a device for measuring a fill level in a fluid container, particularly in a pressure container of a nuclear facility, includes at least one thermocouple which is connected by a pressure pipe to the pressure container and a pipeline connected to the pressure pipe to an evaluation unit. The pressure pipe and the pipeline are connected to each other by a pipe screw connection including a central part having two threaded pieces. One threaded piece is connected by a screw connection to a pipe sleeve and the other threaded piece is connected by a further screw connection to the pressure pipe.

Abstract: A sealing device for a device for measuring a fill level in a fluid container, particularly in a pressure container of a nuclear facility, includes at least one thermocouple which is connected by a pressure pipe to the pressure container and a pipeline connected to the pressure pipe to an evaluation unit. The pressure pipe and the pipeline are connected to each other by a pipe screw connection including a central part having two threaded pieces. One threaded piece is connected by a screw connection to a pipe sleeve and the other threaded piece is connected by a further screw connection to the pressure pipe.