Abstract: A graphene oxide (GO)-silver nanoparticles (AgNPs)-Eu3+ fluorescent probe, a paper-based sensor, and a preparation method and use thereof are provided. The paper-based sensor is developed based on a GO-AgNPs-Eu3+ fluorescent probe-loaded polyvinylidene fluoride (PVDF) microporous membrane, which is further combined with a smartphone. The GO-AgNPs-Eu3+ fluorescent probe shows high selectivity for 2,6-dipicolinic acid (DPA), strong anti-interference ability, and low limit of detection (LOD) for the DPA and spores. The paper-based sensor realizes quantitative detection of the DPA and the spores through red, green, and blue (RGB) changes of the smartphone, and detection results are verified by an actual amount of the spores in milk and water. The rapid detection of foodborne spores is achieved through a dual-function platform based on fluorescence of the GO-AgNPs-Eu3+ fluorescent probe and the paper-based sensor.

Abstract: A display panel, a pixel arrangement structure, and a display apparatus. The display panel includes: a substrate; an isolation structure, the isolation structure including isolation openings which include a first isolation opening, an orthographic projection pattern of the first isolation opening on the substrate including a first side, an angle between an extension direction of the first side and a first direction being greater than or equal to 0° and less than or equal to 10°; a light-emitting function layer; a first electrode disposed on a side of the light-emitting function layer away from the substrate and connecting with the isolation structure in an overlap manner.

Abstract: Processing a network configuration file is described. An example method includes acquiring a network configuration file of a first cluster system, the network configuration file including an original Internet protocol address and acquiring an address translation rule set by a user, the address translation rule including a rule for translating one address of an original network address and an original host address that form the original Internet protocol address. The method further includes acquiring a target Internet protocol address by translating the one address in the original Internet protocol address based on the address translation rule. The method further includes storing the network configuration file including the target Internet protocol address in a second cluster system.

Abstract: The present disclosure pertains to a method of construction and use of a novel bispecific chimeric antigen receptor (CAR) within the field of immunotherapy. The CAR described herein comprises an antigen-binding domain, a connecting peptide (C-peptide), a hinge region, a transmembrane domain, a 4-1BB co-stimulatory signaling domain, and a CD3? signaling domain. The antigen-binding domain is composed of either an anti-CD19 scFv and an anti-CD22 nanobody, or an anti-Her2 scFv paired with a ligand capable of recognizing IGF1R. The bispecific CAR-T cell provided by the present disclosure is constructed based on the ligation design involving an antiparallel ?-stranded loop (BS Loop) linker.

Abstract: The present disclosure provides an ultrasonic sensor, a method for driving the same, and a method for manufacturing the same. The ultrasonic sensor includes a back plate, a sounding structure on the back plate and a backing layer on a side of the sounding structure distal to the back plate; the sounding structure includes a plurality of emitting electrodes, an opposite electrode, a piezoelectric layer and a plurality of signal leads, and the plurality of emitting electrodes and the opposite electrode are respectively arranged on two sides of the piezoelectric layer; and the plurality of emitting electrodes are arranged in an array, and each of the emitting electrodes is individually coupled to one of the signal leads. The ultrasonic sensor may achieve an independent control for each patterned electrode such that the ultrasonic sensor may be used as a point sound source.

Abstract: Disclosed in the present application are an information configuration method and apparatus, and a network device, a first device and a storage medium. The method comprises: a network device sending first information to a first device, wherein the first information at least indicates an association relationship between a first network and a network slice, and the first network is used for connecting a terminal and the first device.

Abstract: A display panel includes a sub-pixel array and a plurality of photosensitive units. The sub-pixel array includes a first sub-pixel, a second sub-pixel and a third sub-pixel that are capable of emitting light of different colors. The plurality of photosensitive units are disposed under gaps of the sub-pixel array.

Abstract: An intelligent pesticide spraying robot self-adaptive to terrain of mountain land is provided. Walking mechanisms are respectively connected to both side ends of a chassis. A pesticide spraying mechanism includes rotary drive mechanisms respectively connected to both sides of the rear end of the chassis, telescopic spray boom mechanisms correspondingly connected to the rotary drive mechanisms, rotary nozzle mechanisms correspondingly connected to the telescopic spray boom mechanisms, a liquid pesticide storage box fixed to the top of the chassis, a first water pump fixed in the liquid pesticide storage box, and first water pipes in communication with the first water pump and the rotary nozzle mechanisms. A control chip of a control identification mechanism is communicatively connected to the walking mechanisms, the rotary drive mechanisms, the telescopic spray boom mechanisms, the rotary nozzle mechanisms, the first water pump, a front-end camera, side-end cameras and ultrasonic sensors respectively.

Abstract: A display panel includes a sub-pixel array and a plurality of photosensitive units. The sub-pixel array includes a first sub-pixel, a second sub-pixel and a third sub-pixel that are capable of emitting light of different colors. The plurality of photosensitive units are disposed under gaps of the sub-pixel array. Each of the plurality of photosensitive units includes a photosensitive device, and the photosensitive device includes a photosensitive layer; and an orthographic projection of the photosensitive layer in the photosensitive device on a panel surface of the display panel has overlapping regions with orthographic projections of the first sub-pixel, the second sub-pixel and the third sub-pixel on the panel surface of the display panel.

Abstract: A method for removing ash from a solid carbon material: Reaction conditions are mild, and ash may be removed more effectively. The ash removing method comprises: S1) mixing an alkaline sub-molten salt medium and a solid carbonaceous material to be treated, heating so that alkali and ash in the solid carbonaceous material to be treated react in the alkaline sub-molten salt medium, and performing solid-liquid separation on a mixed slurry resulting from the reaction to obtain a first solid product and an alkali treatment solution, wherein in the alkaline sub-molten salt medium, the mass fraction of the alkali is greater than or equal to 50%; S2) using an acid solution to perform acid cleaning treatment on the first solid product, and performing solid-liquid separation again to obtain a second solid product and an acid cleaning solution.

Abstract: Disclosed are a foldable display panel and a foldable display apparatus. The foldable display panel includes a first display area and a second display area which are connected in a foldable manner. When the foldable display panel is in a first state, the first display area is light-emitted and the second display area is not light-emitted; and when the foldable display panel is in a second state, both the first display area and the second display area are light-emitted. A density of a drive current of the second display area is set to be greater than a density of a drive current of the first display area when the first display area and the second display area are in the second state.

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: A mining eco-environment damage evaluation method, a mining eco-environment damage evaluation system, and a storable medium are provided. The method includes: acquiring a data source to obtain an eco-environment influence factor; obtaining evaluation index information of the mining eco-environment damage; constructing a mine ecological destruction and environmental pollution loss system; establishing n loss evaluation models; and performing loss calculation on different loss evaluation models, thereby realizing damage evaluation on the mining eco-environment. The method combines actual eco-environment problems, selects key evaluation indexes emphatically, and improves evaluation accuracy based on reducing evaluation calculation amount.

Abstract: A piezoelectric sensor assembly, a manufacturing method thereof, a display panel and an electronic device including the same are provided. The piezoelectric sensor assembly includes: a base substrate; a plurality of ultrasonic transducers, wherein a spacing area is provided between two adjacent ultrasonic transducers; and an acoustic matching layer, wherein the acoustic matching layer includes a plurality of acoustic matching areas, and an orthographic projection of at least one acoustic matching area on the base substrate falls into an orthographic projection of the ultrasonic transducer corresponding to the acoustic matching area on the base substrate, wherein an isolation cavity is provided between two adjacent acoustic matching areas.

Abstract: A method and a system to analyze the driving relationship between ecosystem service and urban agglomeration development are provided. The spatial-temporal evolution characteristics of ESV in the Yangtze River Delta urban agglomeration are analyzed based on the revised equivalent value coefficient and land use data, the driving characteristics and the driving influence evolution characteristics of 10 indicators of human activities and natural conditions on ESV are explored through RF and SEM, an interaction relationship among influencing factors of ESV and the direct and indirect driving effect of the influencing factors on ESV are quantitatively measured under a unified framework, and the ESV evolution mode and the driving mechanism of the urban agglomeration are explored. The method can deeply study the interaction relationship among the influencing factors of the ESV, as well as the driving characteristics and driving paths of the driving factors to the ESV.

Abstract: Disclosed are an organic light-emitting display panel and a display method thereof. The temperature of the organic light-emitting display panel can be detected in a pre-set detection period by arranging a temperature detection and compensation module, when it is determined that the temperature of the organic light-emitting display panel is not within a pre-set temperature range, a temperature compensation voltage corresponding to the organic light-emitting display panel is determined according to the detected temperature of the organic light-emitting display panel; and when each light-emitting device emits light, the determined temperature compensation voltage is applied to an anode of the light-emitting device that emits light so as to carry out voltage compensation on an anode voltage of the light-emitting device.

Abstract: The present disclosure provides a fingerprint identification structure and a display device. The fingerprint identification structure includes an acoustic wave emitter, a focus acoustic lens, and a sound wave receiver. The acoustic lens are between the acoustic wave emitter and the sound wave receiver, the acoustic wave emitter is at a focal position of the acoustic lens and configured to emit acoustic wave toward the acoustic lens, the acoustic wave receiver is configured to detect the intensity distribution of the acoustic wave emitted by the acoustic wave emitter after the acoustic wave sequentially passes through the acoustic lens and the acoustic wave receiver, reaches the surface of the finger and is reflected back by the surface of the finger. The fingerprint recognition structure improves design flexibility.

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: A device for identifying a pattern over a first surface includes a photosensitive layer, and a light-guiding layer disposed between the photosensitive layer and the first surface. The photosensitive layer includes a plurality of photosensitive elements, each configured to convert incident light into an electrical signal. The light-guiding layer includes a plurality of light-guiding units, each positionally corresponding to one of the plurality of photosensitive elements. Each light-guiding unit include a plurality of light-transmitting portions, each configured to guide a light beam reflected from a feature of the pattern positionally corresponding thereto to transmit therethrough and reach one of the plurality of photosensitive elements corresponding to the each of the plurality of light-guiding units. The device can be used for identification of fingerprint, as well as other biometric or non-biometric features, and has a reduced thickness and an improved accuracy for pattern identification.

Abstract: A method for fabricating a touch display substrate and a touch display substrate are provided to solve the problem that existing touch electrodes of the micron-scale line width cannot meet the high PPI requirement. The fabrication method includes forming functional layers of an organic light-emitting diode (OLED) device on a base substrate sequentially to obtain an OLED substrate; and forming a linear touch electrode with a nano-scale line width on the OLED substrate by electronic sputtering and transferring.