Abstract: Provided are a continuous post-treatment method and device for a penem compound. The method includes the following steps: S1, performing continuous extraction on a reaction crude product of a penem compound, to obtain an extraction heavy phase and an extraction light phase; S2, performing continuous solid-liquid separation on the extraction heavy phase, to obtain a liquid phase separation product; S3, performing continuous pH adjustment on the liquid phase separation product until a pH value thereof is 6.1-6.3, to obtain pH-adjusted solution; and S4, performing continuous crystallization treatment on the pH-adjusted solution by a first crystallization solvent, to obtain a penem compound product. The use of the method for the post-treatment of the reaction crude product of the penem compound has the advantages of high treatment speed and high efficiency, and stable material properties and a low deterioration rate during the treatment, and has better control over the yield and purity of a target product.

Abstract: A target detection method based on fusion of vision, lidar and millimeter wave radar comprises: obtaining original data detected by a camera, a millimeter wave radar, and a lidar, and synchronizing the millimeter wave radar, the lidar, and the camera in time and space; performing a calculation on the original data detected by the millimeter wave radar according to a radar protocol; generating a region of interest by using a position, a speed, and a radar reflection area obtained from the calculation; extracting feature maps of a point cloud bird's-eye view and the original data detected by the camera; projecting the region of interest onto the feature maps of the point cloud bird's-eye view and the original data detected by the camera; fusing the feature maps of the point cloud bird's-eye view and the original data detected by the camera, and processing a fused image through a fully connected layer.

Abstract: An information processing method, a server, and a computer storage medium are provided. The method includes: generating a first information identification code according to first information, the first information representing an information source; providing the first information identification code to a terminal; receiving a first request from the terminal and allowing a terminal user of the terminal to follow an information service, the first request carrying the first information; and recording the first information and tracking and obtaining conversion information of the information source according to the first information.

Abstract: The disclosure provides an autonomous vehicle semantic map establishment system and an autonomous vehicle semantic map establishment method. The autonomous vehicle semantic map establishment system includes an image capturing module, a positioning module, a memory, and a processor. The image capturing module acquires a current road image. The positioning module acquires positioning data corresponding to the current road image. The memory stores three-dimensional (3D) map data. The 3D map data includes multiple point cloud data. The processor accesses the memory. The processor analyzes the current road image, to identify object information of a specific traffic object in the current road image. The processor marks, according to the positioning data, the object information of the specific object onto a plurality of corresponding points in the multiple point cloud data corresponding to the specific object in the 3D map data.

Abstract: An information processing method, a server, and a computer storage medium are provided. The method includes: generating a first information identification code according to first information, the first information representing an information source; providing the first information identification code to a terminal; receiving a first request from the terminal and allowing a terminal user of the terminal to follow an information service, the first request carrying the first information; and recording the first information and tracking and obtaining conversion information of the information source according to the first information.

Abstract: The present invention discloses a vehicle goods bracket which is provided at the side of a transport vehicle, and is capable of swinging outward and restoring inward, and which is capable of carrying goods up or down, so as to load and unload for the transport vehicle. The present invention also discloses a vehicle goods bracket set which includes a pair of vehicle goods brackets provided symmetrically at the two sides of the transport vehicle. The present invention further discloses a vehicle goods bracket group, comprising two sets of vehicle goods brackets which are adjacently arranged in the lengthwise direction of the transport vehicle, wherein each set of vehicle goods brackets comprises a pair of vehicle goods brackets provided symmetrically at the two sides of the transport vehicle.

Abstract: The present invention discloses a vehicle goods bracket which is provided at the side of a transport vehicle, and is capable of swinging outward and restoring inward, and which is capable of carrying goods up or down, so as to load and unload for the transport vehicle. The present invention also discloses a vehicle goods bracket set which includes a pair of vehicle goods brackets provided symmetrically at the two sides of the transport vehicle. The present invention further discloses a vehicle goods bracket group, comprising two sets of vehicle goods brackets which are adjacently arranged in the lengthwise direction of the transport vehicle, wherein each set of vehicle goods brackets comprises a pair of vehicle goods brackets provided symmetrically at the two sides of the transport vehicle.

Abstract: A power tool includes a housing, a motor supported in the housing, a chuck assembly having a chuck body rotatable about a central axis in response to torque received from the motor, and a plurality of jaws supported in the chuck body. Each of the jaws includes a front portion operable to grasp a tool element and a rear portion positioned outside the chuck body. The power tool also includes a hammer mechanism operable to impart movement to the chuck assembly, in a direction parallel to the central axis, during rotation of the chuck assembly about the central axis.

Abstract: A power tool includes a housing, a motor supported in the housing, a chuck assembly having a chuck body rotatable about a central axis in response to torque received from the motor, and a plurality of jaws supported in the chuck body. Each of the jaws includes a front portion operable to grasp a tool element and a rear portion positioned outside the chuck body. The power tool also includes a hammer mechanism operable to impart movement to the chuck assembly, in a direction parallel to the central axis, during rotation of the chuck assembly about the central axis.

Abstract: A chuck is provided with a body, a plurality of jaws and an adjustment ring. The adjustment ring is threadably engaged with the jaws. When the adjustment ring is rotated in one direction, the jaws tighten by moving closer to each other. When the adjustment ring is rotated in the opposite direction, the jaws loosen by moving away from each other. An impact member is also provided for engagement with the adjustment ring. When the drive shaft of the power tool is rotated, the adjustment ring impacts against the impact member. As a result, the adjustment ring and the body of the chuck rotate relative to each other causing the jaws of the chuck to loosen or tighten depending on the direction the drive shaft is rotating.

Abstract: A chuck is provided with a body, a plurality of jaws and an adjustment ring. The adjustment ring is threadably engaged with the jaws. When the adjustment ring is rotated in one direction, the jaws tighten by moving closer to each other. When the adjustment ring is rotated in the opposite direction, the jaws loosen by moving away from each other. An impact member is also provided for engagement with the adjustment ring. When the drive shaft of the power tool is rotated, the adjustment ring impacts against the impact member. As a result, the adjustment ring and the body of the chuck rotate relative to each other causing the jaws of the chuck to loosen or tighten depending on the direction the drive shaft is rotating.