Abstract: A method for preparing a lithium iron phosphate positive electrode material includes: sequentially grinding, spray-drying and sintering a first mixture slurry containing iron phosphate, a lithium source, a carbon source and a solvent to obtain a spherical first lithium iron phosphate material; sequentially grinding, spray-drying, sintering and crushing a second mixture slurry containing iron phosphate, a lithium source, a carbon source and a solvent to obtain a second lithium iron phosphate material with an irregular morphology; and mixing the first and second lithium iron phosphate materials in equal mass ratio to obtain a lithium iron phosphate positive electrode material, the fitted value of the maximum compaction density of which is C, where C=0.0847t1+0.0196T1?0.0095t2+0.0261T2?33.6716.

Abstract: A display substrate and a display panel are provided. The display substrate includes a base substrate; the base substrate includes a display region and a peripheral region on at least one side of the display region; the peripheral region includes a first peripheral sub-region and a second peripheral sub-region, the display region includes a first display sub-region corresponding to the first peripheral sub-region and a second display sub-region corresponding to the second peripheral sub-region, and the second display sub-region is different from the first display sub-region; the second peripheral sub-region includes a first gate driving circuit, and the first gate driving circuit is configured to be connected to a plurality of gate scanning signal lines in the first display sub-region through a plurality of connecting lines in the display region, to respectively providing a gate scanning signal to a plurality of rows of pixel units in the first display sub-region.

Abstract: The present disclosure relates to artificial intelligence (AI) operation processing methods apparatuses. One example method includes obtaining a first group identifier, obtaining a trigger message sent by a network device, where the trigger message includes first control information, the first control information indicates a first time-frequency resource, the first time-frequency resource carries N pieces of first scheduling information, each of the N pieces of first scheduling information includes a respective second group identifier and respective AI operation information and indicates a terminal device in a user group indicated by the respective second group identifier to perform an AI operation corresponding to the respective AI operation information, determining target AI operation information when the first group identifier matches a target group identifier, and starting a target AI operation based on the target AI operation information.

Abstract: The invention relates to a floor. The polymer solid wood composite flooring includes a SPC stone plastic layer, and a solid wood veneer layer or plywood layer forming the main body of the floor is arranged under the SPC stone plastic layer; the physical and chemical performance index of the polymer solid wood composite flooring is: color fastness?Grade 6; average peel strength?75 (N/50 mm), pollution resistance?grade 5, heating dimensional change rate?0.25%, heating warpage?2.0 mm, moisture content 6-10%. The preparation process of polymer solid wood composite flooring includes: preparation of SPC stone plastic layer; preparation of solid wood veneer layer or plywood layer; composite pressing; first balance treatment; Slitting; second balance treatment; slotting; UV layer preparation. Thereby, the polymer solid wood composite flooring with good foot feeling, not easy to deform and crack, and small dimensional change rate is produced.

Abstract: A robotic manipulator for handling a cassette and an automated cassette transport device are disclosed, the device including a mechanical arm (1), an end actuator (2) at an end of the mechanical arm (1) and a vision-based locating assembly (3) on the end actuator (2). On the one hand, the vision-based locating assembly (3) can determine the position of a flange of the cassette, thereby identifying the cassette. In other words, the cassette can be identified based on a feature of the cassette itself. This dispense with a separate locating marker while improving cassette measuring and handling accuracy. On the other hand, transportation of the cassette is allowed by complementary retention of its flange on a recessed surface of the end actuator (2).

Abstract: A robotic manipulator for handling a cassette and an automated cassette transport device are disclosed, the device including a mechanical arm (1), an end actuator (2) at an end of the mechanical arm (1) and a vision-based locating assembly (3) on the end actuator (2). On the one hand, the vision-based locating assembly (3) can determine the position of a flange of the cassette, thereby identifying the cassette. In other words, the cassette can be identified based on a feature of the cassette itself. This dispense with a separate locating marker while improving cassette measuring and handling accuracy. On the other hand, transportation of the cassette is allowed by complementary retention of its flange on a recessed surface of the end actuator (2).

Abstract: A pre-alignment measurement device includes, disposed in a direction of propagation of light, a laser, a first cylindrical lens, a first imaging lens, an illumination diaphragm, a second imaging lens, a second cylindrical lens and a CCD detector. The laser, an object under measurement and the CCD detector are arranged at respective apexes of a triangle formed by the measurement device for pre-alignment. A light beam is emanated by the laser and is transformed into a line beam. The line beam is reflected by the object under measurement and then passes through the second cylindrical lens to form a CCD image which has different horizontal and vertical magnifications, allowing horizontal and vertical resolutions to be matched with horizontal and vertical measuring ranges, respectively. The CCD image contains information of a position and a height of a step defined by the object under measurement and the wafer stage.

Abstract: A pre-alignment measurement device includes, disposed in a direction of propagation of light, a laser, a first cylindrical lens, a first imaging lens, an illumination diaphragm, a second imaging lens, a second cylindrical lens and a CCD detector. The laser, an object under measurement and the CCD detector are arranged at respective apexes of a triangle formed by the measurement device for pre-alignment. A light beam is emanated by the laser and is transformed into a line beam. The line beam is reflected by the object under measurement and then passes through the second cylindrical lens to form a CCD image which has different horizontal and vertical magnifications, allowing horizontal and vertical resolutions to be matched with horizontal and vertical measuring ranges, respectively. The CCD image contains information of a position and a height of a step defined by the object under measurement and the wafer stage.