Abstract: The present invention discloses a centroid adjustment device suitable for different types of loads, which belongs to the field of transportation and support technology, including an upper adjustment assembly, a connecting module, and a loading device. The connecting module includes connecting pieces and chain connection assemblies adjustable in length, both upper ends of the connecting pieces and the chain connection assemblies are respectively mounted on opposite sides of the centroid of the upper adjustment assembly and can be adjusted to move toward or away from each other at an upper end of the upper adjustment assembly, and both lower ends of the connecting pieces and the chain connection assemblies are respectively mounted on opposite sides of the centroid of the loading device.

Abstract: An information management method, a device, a system and a medium. The information management method applied to a first terminal, including: sending an information acquisition request to a server, so that the server responds to the information acquisition request and sends visitor information to the first terminal; receiving the visitor information sent by the server; generating card information according to the visitor information; and sending the card information to an electronic card, so that the electronic card displays the card information.

Abstract: The present invention relates to an amide derivative and use thereof in medicine, and specifically to an amide derivative shown as general formula (I) or a stereoisomer, solvate, metabolite, deuteride, prodrug, pharmaceutically acceptable salt or cocrystal thereof, a pharmaceutical composition containing the same, and use of the compound or the composition disclosed herein in preparing an NLRP3 inhibitor.

Abstract: Disclosed in the present disclosure is a double-deck multi-span bridge construction method. According to the double-deck bridge construction method of the present disclosure, construction is carried out by using a method of disassembling a support jig frame in a graded and span-separated mode, an upper chord jig frame and a lower chord jig frame can be used in a recycle manner, and construction costs are reduced. In addition, a construction period of building the support jig frame is shortened, and other construction operations can be synchronously carried out on a span in which the jig frame is disassembled, for example, fire retardant coating construction can be carried out on a mounted bridge deck after the jig frame is disassembled, and the construction period of a double-deck multi-span bridge is effectively shortened.

Abstract: Disclosed is a wireless detection device for quickly positioning a throw-fill stone falling depth and long-term settlement in blasting silt-squeezing construction, including a gravity ball and a signal receiving, processing and controlling system. The gravity ball is internally provided with test mechanisms, signal collecting and transmitting apparatuses and batteries. Also disclosed is a wireless detection method implemented using the above wireless detection device. The device and the method can detect the throw-fill stone falling depth and distribution situation in a blasting silt-squeezing construction process in real time, so that the effect evaluation and quality control of blasting silt-squeezing can be monitored in real time, the situation that the falling of throw-fill stones is incomplete can be acquired in time, monitoring data support can be provided for corresponding processing measures, and long-term settlement and other monitoring can be carried out.

Abstract: Disclosed is a method for Application Specific Packet Filter (ASPF) of a File Transfer Protocol (FTP), including the following steps: when a Transmission Control Protocol (TCP) connection of an FTP control channel is established, a first TCP Synchronous (TCP SYN) packet sent by a client is obtained and forwarded to an FTP server; it is detected whether a response packet from the FTP server is a TCP Synchronize-Acknowledgment (SYN+ACK) packet, and if not, the response packet is discarded; it is detected whether a response packet from the client is an ACK TCP packet, and if not, the response packet is discarded; and a data flow table is created to record and update an FTP state. A device for ASPF of a FTP is also provided. The method and device can avoid and stop the attacks from the FTP application layer, and ensure safe and reliable transmission of an FTP service.

Abstract: Disclosed is a method for Application Specific Packet Filter (ASPF) of a File Transfer Protocol (FTP), including the following steps: when a Transmission Control Protocol (TCP) connection of an FTP control channel is established, a first TCP Synchronous (TCP SYN) packet sent by a client is obtained and forwarded to an FTP server; it is detected whether a response packet from the FTP server is a TCP Synchronize-Acknowledgment (SYN+ACK) packet, and if not, the response packet is discarded; it is detected whether a response packet from the client is an ACK TCP packet, and if not, the response packet is discarded; and a data flow table is created to record and update an FTP state. A device for ASPF of a FTP is also provided. The method and device can avoid and stop the attacks from the FTP application layer, and ensure safe and reliable transmission of an FTP service.