Abstract: A scanning assembly, including: a housing, wherein a lower portion of the housing comprises an opening, and the opening can be closed by tissue to be scanned; a pressure difference generating device, disposed on the housing and used to generate an air pressure difference between the interior and the exterior of the housing, the air pressure difference providing a first pressure for the tissue to be scanned, the weight of the scanning assembly providing a second pressure for the tissue to be scanned, the tissue to be scanned being compressed under the action of a compressive force, and the compressive force comprising the first pressure and the second pressure; and an ultrasonic transducer, disposed in the housing and used to perform ultrasound scanning on the compressed tissue to be scanned.

Abstract: The present application provides a display panel and a grayscale compensation method. The grayscale compensation method first divides a display area of the display panel into a first display sub-area and a second display sub-area, and then takes average brightness of the at least one second display sub-area as target brightness and compensates a grayscale of each sub-pixel in the at least one second display sub-area. Accordingly, the present application not only improves the brightness uniformity of the display area, but also requires less gray scale compensation data.

Abstract: A horizontal five-axis turning plate type machining center includes a support base, a lathe bed arranged on the support base and a column arranged on the support base, wherein the lathe bed and the column are fixedly connected through a connecting arm, a turning plate device is arranged on the support base, an X-direction sliding plate capable of sliding in an X direction on the lathe bed is arranged on a side, facing the column, of the lathe bed, and a third driving unit capable of driving a workbench to perform position conversion between a turning plate and the X-direction sliding plate is arranged on the turning plate.

Abstract: A scanning assembly, including: a housing, wherein a lower portion of the housing comprises an opening, and the opening can be closed by tissue to be scanned; a pressure difference generating device, disposed on the housing and used to generate an air pressure difference between the interior and the exterior of the housing, the air pressure difference providing a first pressure for the tissue to be scanned, the weight of the scanning assembly providing a second pressure for the tissue to be scanned, the tissue to be scanned being compressed under the action of a compressive force, and the compressive force comprising the first pressure and the second pressure; and an ultrasonic transducer, disposed in the housing and used to perform ultrasound scanning on the compressed tissue to be scanned.

Abstract: The present application provides a display panel and a grayscale compensation method. The grayscale compensation method first divides a display area of the display panel into a first display sub-area and a second display sub-area, and then takes average brightness of the at least one second display sub-area as target brightness and compensates a grayscale of each sub-pixel in the at least one second display sub-area. Accordingly, the present application not only improves the brightness uniformity of the display area, but also requires less gray scale compensation data.

Abstract: The invention provides a nested numerical control rotary table, which comprises a large numerical control rotary table, a small rotary table, a large rotary table board and a small rotary table board nested in the large rotary table board, wherein the small rotary table board may be driven by the large numerical control rotary table as a part of the large rotary table board to run together with the large rotary table board, or be driven by the small rotary table to run independently. When the small rotary table board runs independently, the small rotary table is driven to ascend by a lifting oil cylinder, and a pull pin under the small rotary table board and a positioning pin on the small rotary table fixedly connect the small rotary table board with the small rotary table, which are locked by a clamp. The nested numerical control rotary table may complete the tasks of numerical control rotary tables with both large and small dimensions, which saves the production cost and improves the working efficiency.

Abstract: The present invention discloses a pollutant generation system. The pollutant generation system includes a pollution source and a pollutant emitter. The pollutant emitter is connected to the pollution source. The pollution source is composed of two gases including air and methane. The flows of the gases are strictly controlled. Then, the gases enter a magnetic bead glass bottle. Due to the disturbance of magnetic beads to the flowing of the gases, the gases are sufficiently disordered, and the two gases are sufficiently mixed by using a spiral tube to generate a uniform and stable pollution source.

Abstract: The invention provides a nested numerical control rotary table, which comprises a large numerical control rotary table, a small rotary table, a large rotary table board and a small rotary table board nested in the large rotary table board, wherein the small rotary table board may be driven by the large numerical control rotary table as a part of the large rotary table board to run together with the large rotary table board, or be driven by the small rotary table to run independently. When the small rotary table board runs independently, the small rotary table is driven to ascend by a lifting oil cylinder, and a pull pin under the small rotary table board and a positioning pin on the small rotary table fixedly connect the small rotary table board with the small rotary table, which are locked by a clamp. The nested numerical control rotary table may complete the tasks of numerical control rotary tables with both large and small dimensions, which saves the production cost and improves the working efficiency.

Abstract: A horizontal five-axis turning plate type machining center includes a support base, a lathe bed arranged on the support base and a column arranged on the support base, wherein the lathe bed and the column are fixedly connected through a connecting arm, a turning plate device is arranged on the support base, an X-direction sliding plate capable of sliding in an X direction on the lathe bed is arranged on a side, facing the column, of the lathe bed, and a third driving unit capable of driving a workbench to perform position conversion between a turning plate and the X-direction sliding plate is arranged on the turning plate.

Abstract: The present invention discloses a pollutant generation system. The pollutant generation system includes a pollution source and a pollutant emitter. The pollutant emitter is connected to the pollution source. The pollution source is composed of two gases including air and methane. The flows of the gases are strictly controlled. Then, the gases enter a magnetic bead glass bottle. Due to the disturbance of magnetic beads to the flowing of the gases, the gases are sufficiently disordered, and the two gases are sufficiently mixed by using a spiral tube to generate a uniform and stable pollution source.

Abstract: A scooter usable for figure scootering, including: a scooter frame having a frame body for a user to step thereon; a steering mechanism disposed at a front end of the scooter frame for controlling turning direction of the scooter; a front wheel pivotally disposed at a bottom end of the steering mechanism; a rear wheel pivotally disposed under bottom face of the frame body; and an auxiliary wheel pivotally disposed under bottom face of the scooter frame behind the rear wheel. When the front and rear wheels contact with the ground, the auxiliary wheel is higher than the ground by a certain height. When the front end of the scooter is lifted, the rear wheel and the auxiliary wheel contact with the ground for performing figure scootering.

Abstract: An electric fan includes a base, a drive unit, a fan blade, and a direct current power source. The drive unit is mounted on the base, and includes a direct current fan motor and an electrical socket connected to the fan motor. The fan blade is coupled to and is driven rotatably by the fan motor. The direct current power source is coupled electrically to the fan motor, and includes a storage battery and an electrical plug connected to the storage battery. When the electrical socket and the electrical plug are interconnected, the storage battery provides power to the fan motor for operation of the electric fan.