Abstract: The application provides a display substrate, a method for manufacturing the same, and a display device. The display substrate includes a display region and a binding region located at a periphery of the display region. The binding region is provided with a drive circuit pin and a flexible circuit board pin, and a connecting trace for connecting the drive circuit pin and the flexible circuit board pin. The connecting trace includes a first connecting line and a second connecting line connected in parallel, the first connecting line and the second connecting line are in different layers, the first connecting line is between an interlayer insulating layer and a base substrate of the display substrate, the first connecting line and the interlayer insulating layer are separated by a first insulating layer, and the second connecting line is on a side of the interlayer insulating layer away from the base substrate.

Abstract: A method and apparatus for preparing methyl methacrylate (MMA) are provided. The method includes an aldol condensation reaction, a first distillation, a second distillation, a third distillation, a phase splitting, and a fourth distillation. Through the control of the process, the aldol condensation reaction can be performed when methyl propionate is used as the ninth material stream and formalin solution is used as the fifteenth stream material, MMA is obtained as the final product from the third material stream, and the waste with low content of residual formaldehyde is recovered from the eighth material stream.

Abstract: A method for checking a medium-term and long-term maintenance plan of a power grid. A predicted load value and one or more historical load values of a power grid are acquired and clustered through a clustering algorithm, and a historical moment at which a historical load value is in a same cluster as the predicted load value and has a largest load value is selected as a target historical moment. A power grid operation mode model at the target historical moment is acquired, and the power grid operation mode model is updated according to the maintenance plan and open loop point information by using a full wiring approach to obtain a future-state power grid operation mode model. Ground state power flow data of the power grid are calculated based on the operation mode model, and safety check is carried out according to a preset ground state power flow limit.

Abstract: Provided is a PCR primer pair, comprising: a first primer and a second primer, wherein the first primer comprises a first specific sequence and a first random sequence; the first specific sequence is located on 3? end of the first primer, and the first random sequence is located on 5? end of the first primer; the second primer comprises a second specific sequence and a second random sequence, the second specific sequence is located on 3? end of the second primer, and the second random sequence is located on 5? end of the second primer; moreover, the first specific sequence and the second specific sequence are an upstream primer and a downstream primer directed to a target sequence respectively, and the first random sequence and the second random sequence are inverse complementary.

Abstract: Provided are a PCR primer pair and an application thereof.

Abstract: A porous polymer has a pore volume of 0.3 to 2.5 cm3/g and comprises a pore having a first pore diameter and a pore having a second pore diameter. A ratio of pore volume of the pore having a first pore diameter to pore volume of the pore having a second pore diameter is 1 to 10:1. The porous polymer is obtained by self-polymerization or copolymerization of at least one of the phosphorus ligands, and phosphorous content of the porous polymer is 1 to 5 mmol/g. The porous polymer-nickel catalyst made of the porous polymer has a significant increase in water resistance, which may reduce the consumption of phosphorus ligands, eliminating the steps of removing water from raw materials and reaction system water control, which greatly saves process equipment investment. When used in the preparation of adiponitrile from butadiene, it has high catalytic activity, high reaction selectivity, and high linearity.

Abstract: A stable carotenoid microcapsule having high bioavailability and a preparation method therefor. The method includes the following steps: a) mixing carotenoid crystals with an organic solvent, and dissolving the mixture to obtain a carotenoid solution; b) introducing the carotenoid solution and a grease into a dispersion system to fully disperse carotenoid into the grease, and vaporizing the organic solvent to obtain a carotenoid-containing dispersion liquid; c) mixing the carotenoid-containing dispersion liquid and a protective colloid aqueous solution, and emulsifying the mixture to obtain an emulsion; and d) performing spray granulation and drying to obtain a carotenoid microcapsule.

Abstract: Embodiments provide a method for constructing a future-state power grid model and device, including that: a current power grid model, an equipment power-off plan, an equipment retirement plan and an equipment addition plan are acquired; then, equipment is added according to the current power grid model, and an added equipment information set, a retired equipment information set and a powered-off equipment information set are determined according to the equipment addition plan, the equipment retirement plan and the equipment power-off plan respectively; and finally, a state of the added equipment is set to be an operating state, an initial network model of each period is formed according to a time sequence, and a future-state network model is constructed according to the added equipment information set, the retired equipment information set, the powered-off equipment information set and the initial network models. The embodiments further provide construction equipment and a storage medium.

Abstract: Provided are a PCR primer pair and an application thereof.

Abstract: Provided is a PCR primer pair, comprising: a first primer and a second primer, wherein the first primer comprises a first specific sequence and a first random sequence; the first specific sequence is located on 3? end of the first primer, and the first random sequence is located on 5? end of the first primer; the second primer comprises a second specific sequence and a second random sequence, the second specific sequence is located on 3? end of the second primer, and the second random sequence is located on 5? end of the second primer; moreover, the first specific sequence and the second specific sequence are an upstream primer and a downstream primer directed to a target sequence respectively, and the first random sequence and the second random sequence are inverse complementary.

Abstract: A vehicle auxiliary display device includes: a first camera configured to acquire a first image of a position of a user; a second camera configured to acquire a second image within a first range on an outside of a pillar of a vehicle; and a processor configured to determine a shielding area of the pillar shielding the user's line of sight based on the first image, extract an image of the shielding area from the second image based on the second image, and send the image of the shielding area to the user.

Abstract: A portable sunscreen applying apparatus and a sunscreen application reminding method are provided, and the portable sunscreen applying apparatus includes: an ultraviolet processing device and a sunscreen accommodating device connected with the ultraviolet processing device, the sunscreen accommodating device is configured for accommodating sunscreens of different protection levels; the ultraviolet processing device includes: an ultraviolet detecting unit, for detecting current ultraviolet and obtaining an intensity of the current ultraviolet; and a sunscreen application reminding unit, for issuing a warning reminder of one of the sunscreens of the protection level corresponding to the intensity of the current ultraviolet. The ultraviolet processing device and the sunscreen accommodating device are provided together, the intensity of the current ultraviolet is detected by the ultraviolet detecting unit in the ultraviolet processing device, and the user is reminded to use the appropriate sunscreen.

Abstract: Embodiments provide a method for constructing a future-state power grid model and device, including that: a current power grid model, an equipment power-off plan, an equipment retirement plan and an equipment addition plan are acquired; then, equipment is added according to the current power grid model, and an added equipment information set, a retired equipment information set and a powered-off equipment information set are determined according to the equipment addition plan, the equipment retirement plan and the equipment power-off plan respectively; and finally, a state of the added equipment is set to be an operating state, an initial network model of each period is formed according to a time sequence, and a future-state network model is constructed according to the added equipment information set, the retired equipment information set, the powered-off equipment information set and the initial network models. The embodiments further provide construction equipment and a storage medium.

Abstract: A vehicle auxiliary display device includes: a first camera configured to acquire a first image of a position of a user; a second camera configured to acquire a second image within a first range on an outside of a pillar of a vehicle; and a processor configured to determine a shielding area of the pillar shielding the user's line of sight based on the first image, extract an image of the shielding area from the second image based on the second image, and send the image of the shielding area to the user.

Abstract: A portable sunscreen applying apparatus and a sunscreen application reminding method are provided, and the portable sunscreen applying apparatus includes: an ultraviolet processing device and a sunscreen accommodating device connected with the ultraviolet processing device, the sunscreen accommodating device is configured for accommodating sunscreens of different protection levels; the ultraviolet processing device includes: an ultraviolet detecting unit, for detecting current ultraviolet and obtaining an intensity of the current ultraviolet; and a sunscreen application reminding unit, for issuing a warning reminder of one of the sunscreens of the protection level corresponding to the intensity of the current ultraviolet. The ultraviolet processing device and the sunscreen accommodating device are provided together, the intensity of the current ultraviolet is detected by the ultraviolet detecting unit in the ultraviolet processing device, and the user is reminded to use the appropriate sunscreen.

Abstract: The present application discloses an exercise equipment having a main body, a transmission, a driving wheel rotatably mounted on the main body, a driven wheel rotatably mounted on the main body and operatively coupled to the driving wheel through the transmission, an actuator configured to actuate a driving force applied to the driven wheel, and a controller. The controller is configured to control the actuator to actuate the driving force applied to the driven wheel based on a control parameter.

Abstract: The present invention discloses a packaging apparatus and a packaging device. The packaging apparatus comprises a mask plate and a control circuit that is electrically connected to the mask plate and is used to control the mask plate such that the mask plate electrostatically adsorbs a first substrate or release the first substrate. In the technical solutions of the present invention, the mask plate is controlled by the control circuit such that the mask plate electrostatically adsorbs or releases the first substrate without the need to use the alignment mechanism of mechanical fixing type to fix the first substrate. By completely adsorbing the first substrate by the mask plate in a way of electrostatic adsorption, the deformation of the first substrate and the generation of bubbles between the first substrate and the second substrate are avoided, the alignment precision is improved, and the slip-off of the first substrate from the mask plate during the process of pressing is avoided.

Abstract: A display panel and a display device are provided. The display panel comprises a first substrate (1), a first liquid crystal display structure (2) and an organic electroluminescent structure (3); the first liquid crystal display structure (2) and the organic electroluminescent structure (3) are respectively provided at opposite sides of the first substrate (1), the organic electroluminescent structure (3) emits light from both sides; the light emitted from a side facing the first liquid crystal display structure (2) is used as the backlight for the first liquid crystal display structure (2), and the light emitted from a side facing away from the first liquid crystal display structure (2) can be used for displaying or illumination. The display panel is capable of double-sided display or illumination and has a reduced thickness.

Abstract: An organic electroluminescent device and a manufacturing method thereof, and a display device. The organic electroluminescent device comprises comprising a base substrate, a packaging structure, an organic electroluminescent structure located between the base substrate and the packaging structure, and a flexible printed circuit board; the base substrate being provided with a peripheral wiring structure electrically connected with an internal wiring of the organic electroluminescent structure; the peripheral wiring structure including a welding part. The welding part has a first surface facing the base substrate, at least a portion of the first surface being exposed to electrically connect with a welding terminal of the flexible printed circuit board.

Abstract: The present disclosure relates to the field of organic electroluminescence and provides an OLED display device, a non-contact IC card and a flexible display device. The OLED display device includes a substrate, an encapsulation structure arranged above the substrate, and an OLED arranged between the substrate and the encapsulation structure. A region where an integrated circuit of the display device is bonded is arranged between the substrate and the OLED.