Abstract: A lotus leaf derived biochar loaded with ZIF-67, and a preparation method therefor and an application method thereof are provided, which relate to the field of environmental protection wastewater treatment technologies. The preparation method includes: adding a pretreated lotus leaf carrier and ZIF-67 to methanol as solvent, to obtain a solution, performing an ultrasonic dispersion process on the solution, standing the solution after performing the ultrasonic dispersion process to perform a self-assembly reaction to thus obtain a reacted solution, and drying the reacted solution to obtain the lotus leaf derived biochar loaded with the ZIF-67. Recyclability and reusability of the ZIF-67 are effectively improved by the lotus leaf derived biochar loaded with ZIF-67, and organic pollutants in aqueous solution are degraded by effectively activating peroxymonosulfate.

Abstract: A sensing substrate and a manufacturing method thereof are provided. The sensing substrate includes a base substrate, a heat electrode and a strain detection electrode which are disposed on the base substrate, and an insulation layer covering the heat electrode and the strain detection electrode. The heat electrode is configured for heating, and the strain detection electrode is configured to detect strain. The heat electrode and the strain detection electrode each have a metal mesh structure.

Abstract: The disclosed subject matter relates to a system and method for providing an extended search. The system generates a list of synonym groups based on previous engagements linking queries and products. With receipt of a user query, the system accesses synonyms to the search terms and incorporates them into the query of the product catalog in order to obtain a complete set of results. The creation of the synonym groups uses various approaches including sequence tagging and graph embedding to identify synonyms in the query and the item titles.

Abstract: The disclosed subject matter relates to a system and method for providing an extended search. The system generates a list of synonym groups based on previous engagements linking queries and products. With receipt of a user query, the system accesses synonyms to the search terms and incorporates them into the query of the product catalog in order to obtain a complete set of results. The creation of the synonym groups uses various approaches including sequence tagging and graph embedding to identify synonyms in the query and the item titles.

Abstract: A charging method includes that after receiving a charging request, a master control device arranges a parking space for an electric vehicle to be charged and sends a traction device a movement instruction generated from the charging request; the traction device drives, according to the movement instruction, a charging controller to move along a guide rail to above the electric vehicle to be charged; the master control device sends a cable transferring instruction to a cable transferring device and the cable transferring device starts to lower a cable; after the cable transferring device lowers the cable to a preset position, the master control device sends a stop instruction to the cable transferring device and the cable transferring device stops lowering the cable; and the cable charges the electric vehicle to be charged.

Abstract: A method for charging an electric vehicle is provided. The method includes that a mobile charging apparatus transmits its own status information to a centralized battery distribution station; the centralized battery distribution station determines, according to the received status information, whether power of a battery of the mobile charging apparatus is less than a first threshold; if the power of the battery of the mobile charging apparatus is less than the first threshold, the battery of the mobile charging apparatus is processed so that the power of the battery of the mobile charging apparatus is greater than a second threshold, wherein the second threshold is greater than the first threshold; and if the power of the battery of the mobile charging apparatus is not less than the first threshold, the mobile charging apparatus charges the electric vehicle.

Abstract: A charging method includes that after receiving a charging request, a master control device arranges a parking space for an electric vehicle to be charged and sends a traction device a movement instruction generated from the charging request; the traction device drives, according to the movement instruction, a charging controller to move along a guide rail to above the electric vehicle to be charged; the master control device sends a cable transferring instruction to a cable transferring device and the cable transferring device starts to lower a cable; after the cable transferring device lowers the cable to a preset position, the master control device sends a stop instruction to the cable transferring device and the cable transferring device stops lowering the cable; and the cable charges the electric vehicle to be charged.

Abstract: A method for charging an electric vehicle includes steps that a master device sorts multiple received charging request information according to a preset sorting rule, where the charging request information includes position information of the electric vehicle to be charged; the master device sends a charging instruction to a charging system according to a sorting result; the charging system receives and processes the charging instruction and then transmits the charging instruction to an automated guided vehicle; and the automated guided vehicle travels, according to the position information, to a position of the electric vehicle to be charged, and charges the electric vehicle to be charged.

Abstract: A method for charging an electric vehicle is provided. The method includes that a mobile charging apparatus transmits its own status information to a centralized battery distribution station; the centralized battery distribution station determines, according to the received status information, whether power of a battery of the mobile charging apparatus is less than a first threshold; if the power of the battery of the mobile charging apparatus is less than the first threshold, the battery of the mobile charging apparatus is processed so that the power of the battery of the mobile charging apparatus is greater than a second threshold, wherein the second threshold is greater than the first threshold; and if the power of the battery of the mobile charging apparatus is not less than the first threshold, the mobile charging apparatus charges the electric vehicle.

Abstract: A method for controlling charging and discharging of an electric vehicle, the method comprising: first, analyzing information such as the battery status and the history default rate of electric vehicles applying for joining a power-grid charging and discharging service, and screening out an electric vehicle that can participate in the charging and discharging service for electric vehicles in the future; then, determining an optimal combination state of a generator set and the electric vehicle by using a method of electric energy transmission cost comparison; and further monitoring in real time the status of the electric vehicle during charging and discharging, and performing real-time power control on the electric vehicle, whereby an electric vehicle aggregator not only can meet the requirements on the charging and discharging service of the power system, but also can implement energy management and real-time control of the electric vehicles during charging and discharging, thereby reducing the effect of char

Abstract: The present application discloses hypertext transfer protocol secure (HTTPS) based packet processing methods and apparatuses. An exemplary method may include receiving an HTTPS request sent by a client terminal. The method may also include looking up in a key database in accordance with a target domain name in the HTTPS request, and reading a ciphertext of an encrypted first private key corresponding to the target domain name. The method may further include decrypting, by using a second private key, the ciphertext of the encrypted first private key to obtain the first private key; and decrypting, by using the first private key, a ciphertext of an encrypted symmetric key contained in the HTTPS request to obtain the symmetric key.

Abstract: A method for controlling charging and discharging of an electric vehicle, the method comprising: first, analyzing information such as the battery status and the history default rate of electric vehicles applying for joining a power-grid charging and discharging service, and screening out an electric vehicle that can participate in the charging and discharging service for electric vehicles in the future; then, determining an optimal combination state of a generator set and the electric vehicle by using a method of electric energy transmission cost comparison; and further monitoring in real time the status of the electric vehicle during charging and discharging, and performing real-time power control on the electric vehicle, whereby an electric vehicle aggregator not only can meet the requirements on the charging and discharging service of the power system, but also can implement energy management and real-time control of the electric vehicles during charging and discharging, thereby reducing the effect of char

Abstract: A ring which includes a ring base having a top open chamber and a plurality of bottom through holes and a circular bottom band, a cap loosely coupled to the ring base, and a circuit device mounted inside the top open chamber of the ring base, the circuit device including a sound producing circuit, a light producing circuit, a battery power supply circuit, and a switch, the switch being switched on to trigger the sound producing circuit and the light producing circuit to produce sound and light for a predetermined length of time each time when the cap is depressed.