Abstract: A camera system comprises: a main control chip, wherein the main control chip includes at least one main control unit; at least one group of cameras, wherein each camera in each group of cameras includes an image acquisition control chip; and at least one pair of bidirectional differential data lines, wherein each pair of bidirectional differential data lines is connected to a single main control unit and all image acquisition control chips in a single group of cameras.

Abstract: A display substrate includes a plurality of sub-pixels. The display substrate further includes: a base substrate; a plurality of temperature sensors disposed on a first side of the base substrate; and a light-shielding layer disposed on a peripheral side, a side proximate to the base substrate, and a side away from the base substrate, of a temperature sensor in the temperature sensors. The temperature sensor is configured to detect a temperature of at least one of the plurality of sub-pixels. The light-shielding layer is configured to shield light emitted to the temperature sensor.

Abstract: A transmission rod assembly for a height-adjustable desk comprises: a first transmission head having positioning grooves; a second transmission head having positioning blocks; an elastic piece axially limiting abutment of the first and second transmission heads, the positioning blocks positioning respective positioning grooves; a sleeve pipe having an end mounted to the second transmission head, the elastic piece being mounted in the sleeve pipe, and an end of the elastic piece abutting the second transmission head; a first transmission rod having an end protruding into the other end of the sleeve pipe and abutting the other end of the elastic piece, the sleeve pipe limiting the first transmission rod; and a locking assembly mounted on the other end of the sleeve pipe, the locking assembly limiting the sleeve pipe and clamping the first transmission rod. Thus, mounting can be completed by elastic squeeze, bringing simple structure and easy operation.

Abstract: The present disclosure relates to the technical field of oilfield chemicals, and discloses an acrylamide copolymer, wherein the acrylamide copolymer comprises a structural unit A, a structural unit B and a structural unit C, wherein the structural unit A has a structure shown in Formula (1), the structural unit B has a structure shown in Formula (2), and the structural unit C has a structure shown in Formula (3) and/or Formula (4); wherein R1 is methyl or H, R2 is —OH, —NH2, —COOH or C2-C12 alkyl, n is an integer between 0 and 6, and a, b and c are each independently selected from integers between 0 and 2.

Abstract: The invention displays aflatoxin B1 (AFB1) detection kit and AFB1 detection method. The invention belongs to the technical field of detecting harmful substances. The AFB1 detection kit was fabricated with DNA walker structure, endonuclease, hairpin H1 and H2. The AFB1 detection kit has benefits of high sensitivity and short detection time based on signal amplification strategy of DNA Walker structure and hyperbranched fluorescent nanotrees. The present invention can realize high sensitive and rapid detection of AFB1.

Abstract: A camera system comprises: a main control chip, wherein the main control chip includes at least one main control unit; at least one group of cameras, wherein each camera in each group of cameras includes an image acquisition control chip; and at least one pair of bidirectional differential data lines, wherein each pair of bidirectional differential data lines is connected to a single main control unit and all image acquisition control chips in a single group of cameras.

Abstract: A display panel includes a display substrate. The display substrate includes: a base substrate; a display structure layer including a plurality of pixel circuits and a plurality of light-emitting devices on the base substrate; and a light detection layer located at a non-light exit side of the light-emitting devices. A pixel circuit in the plurality of pixel circuits is electrically connected to a respective light-emitting device to drive the light-emitting device to emit light. The light detection layer is configured to detect a luminous intensity of at least one light-emitting device. The display substrate further includes: a transparent cover plate at a light exit side of the light-emitting devices; and a polarizer and a first quarter-wave plate between the display substrate and the transparent cover plate. The polarizer is closer to the display substrate than the first quarter-wave plate.

Abstract: The invention displays aflatoxin B1 (AFB1) detection kit and AFB1 detection method. The invention belongs to the technical field of detecting harmful substances. The AFB1 detection kit was fabricated with DNA walker structure, endonuclease, hairpin H1 and H2. The AFB1 detection kit has benefits of high sensitivity and short detection time based on signal amplification strategy of DNA Walker structure and hyperbranched fluorescent nanotrees. The present invention can realize high sensitive and rapid detection of AFB1.

Abstract: A display substrate includes a plurality of sub-pixels. The display substrate further includes: a base substrate; a plurality of temperature sensors disposed on a first side of the base substrate; and a light-shielding layer disposed on a peripheral side, a side proximate to the base substrate, and a side away from the base substrate, of a temperature sensor in the temperature sensors. The temperature sensor is configured to detect a temperature of at least one of the plurality of sub-pixels. The light-shielding layer is configured to shield light emitted to the temperature sensor.

Abstract: Disclosed are a display substrate, a display panel and a display apparatus. The display substrate includes a base substrate; a plurality of read signal lines, extending on the base substrate in a first direction; a plurality of display signal lines, extending on the base substrate in a second direction, the second direction intersects with the first direction, the plurality of display signal lines and the plurality of read signal lines are arranged on different layers, there is an overlapped region between an orthographic projection of the plurality of display signal lines on the base substrate and an orthographic projection of the plurality of read signal lines; and a shielding layer, located between a layer where the plurality of read signal lines are and a layer where the plurality of display signal lines are, an orthographic projection of the shielding layer on the base substrate at least covers the overlapped region.

Abstract: The present disclosure relates to the technical field of oilfield chemicals, and discloses an acrylamide copolymer, wherein the acrylamide copolymer comprises a structural unit A, a structural unit B and a structural unit C, wherein the structural unit A has a structure shown in Formula (1), the structural unit B has a structure shown in Formula (2), and the structural unit C has a structure shown in Formula (3) and/or Formula (4); wherein R1 is methyl or H, R2 is —OH, —NH2, —COOH or C2-C12 alkyl, n is an integer between 0 and 6, and a, b and c are each independently selected from integers between 0 and 2.

Abstract: A balance has a draft shield provided therefor. The shield has a base with upper and lower base covers (5, 6). The upper cover has a central hole in the middle thereof. A windproof ring is placed above the upper cover around a weighing pan of the balance. A shield (7) that is placed between the upper cover and the lower cover receives a weighing sensor (8) of the balance. A wind shield is placed above the base and a weighing compartment for receiving the weighing pan is placed between the wind shield and the upper cover. The windproof structure also has an isolation baffle (2) that is placed between the weighing pan and the upper cover. The high-accuracy balance of the present invention may effectively prevent air flow disturbances inside the balance.

Abstract: A balance has a draft shield provided therefor. The shield has a base with upper and lower base covers (5, 6). The upper cover has a central hole in the middle thereof. A windproof ring is placed above the upper cover around a weighing pan of the balance. A shield (7) that is placed between the upper cover and the lower cover receives a weighing sensor (8) of the balance. A wind shield is placed above the base and a weighing compartment for receiving the weighing pan is placed between the wind shield and the upper cover. The windproof structure also has an isolation baffle (2) that is placed between the weighing pan and the upper cover. The high-accuracy balance of the present invention may effectively prevent air flow disturbances inside the balance.