Abstract: The present disclosure provides a display substrate and a display apparatus. The display substrate includes a base substrate, including a display region and a frame region located on at least one side of the display region; a transistor, located on the base substrate, wherein the transistor is located in the display region and includes a gate, a first electrode and an active layer; and a protective structure, located on the base substrate, wherein the protective structure is provided in the frame region and close to the display region, and the protective structure is in the same layer as and is made of the same material as at least one of the active layer, the gate or the first electrode.

Abstract: An antibacterial polycarbonate composite includes the following components in parts by weight: 100 parts of a polycarbonate, 0.01-5 parts of a nanometer metal oxide, and 0.01-5 parts of a silicon-containing high-molecular polymer; and based on a total weight of the antibacterial polycarbonate composite, a content of a silver ion is 100-1200 ppm.

Abstract: The present application provides a method of training a natural language processing model, which relates to a field of artificial intelligence, and in particular to a field of natural language processing. A specific implementation scheme includes: performing a semantic learning for multi-tasks on an input text, so as to obtain a semantic feature for the multi-tasks, wherein the multi-tasks include a plurality of branch tasks; performing a feature learning for each branch task based on the semantic feature, so as to obtain a first output result for each branch task; calculating a loss for each branch task according to the first output result for the branch task; and adjusting a parameter of the natural language processing model according to the loss for each branch task. The present application further provides a method of processing a natural language, an electronic device, and a storage medium.

Abstract: A system for analyzing a cell or tissue sample using polarized light, the system comprising: an apparatus for adjustably changing the polarization state of incident light having at least a first wavelength containing a first polarization state and a second polarization state; a light source arranged to provide the incident light to the apparatus; and a polarimeter, wherein the apparatus is arranged to direct polarized light onto a cell or tissue sample, and the polarimeter is arranged to receive light reflected from the cell or tissue sample, and measure the polarization state of said light.

Abstract: Provided is a display panel. The display panel comprises a substrate layer, and an anode layer, a first pixel define layer, a polymer film layer, an organic functional layer, and a cathode layer sequentially disposed on a surface of the substrate layer; wherein the polymer film layer is formed by the reaction of the organic light-induced material coated on the surface, distal from the anode layer, of the first pixel define layer and the first pixel define layer under the predetermined condition, and the organic light-induced material at least comprises the hydroxyl group and the unsaturated carbon-carbon double bond.

Abstract: An inspection system and method, the system includes: a ray source rotatable between at least two scanning positions around a rotation axis, a rotation angle of the ray source between two adjacent scanning positions being greater than an angle of adjacent target spots of the ray source relative to the rotation axis; a detector assembly; and a conveying device for carrying an object. The ray source and the detector assembly are movable in a traveling direction relative to the conveying device so that the object enters an inspection region. When the ray source is at one of the scanning positions, the ray source and the detector assembly move in the traveling direction and the ray source emits X-rays; and when the ray source and the detector assembly move a predetermined distance in the traveling direction, the ray source rotates around the rotation axis to another one of the scanning positions.

Abstract: A micro-channel heat exchanger comprises: a first manifold and a second manifold; a plurality of micro-channel flat tubes, sequentially connected from top to bottom between the first manifold and the second manifold; and a plurality of heat exchange fins, spaced at a predetermined distance from each other and formed with tube holes for the plurality of micro-channel flat tubes to pass through. The plurality of heat exchange fins have heat dissipation structures. The heat dissipation structures are located above the micro-channel flat tube, and a drainage groove is arranged vertically at the same side of the plurality of heat exchange fins. A portion of at least one heat exchange fin of the plurality of heat exchange fins below the bottommost micro-channel flat tube has a guiding structure for guiding water droplets condensed on the surface of the heat exchange fin to the drainage groove.

Abstract: An inspection system and method, and the system includes: a ray source; a detector assembly; and a conveying device for carrying an aviation pallet cargo. The ray source and the detector assembly are movable in a traveling direction parallel to the central axis relative to the conveying device so that the aviation pallet cargo enters an inspection region, the ray source is translatable between a plurality of scanning positions, and a translation distance of the ray source between two adjacent scanning positions is greater than a spacing between adjacent target spots of the ray source. When the ray source is located at one of the scanning positions, the ray source and the detector assembly move in the traveling direction and the ray source emits X-rays; and when the ray source and the detector assembly move a predetermined distance in the traveling direction, the ray source translates to another one of the plurality of scanning positions.

Abstract: Disclosed are a 4D printing method and application of titanium-nickel shape memory alloy. The 4D printing method comprises the following steps: mixing and smelting pure titanium and pure nickel to obtain titanium-nickel alloy bars, then preparing alloy powder by a rotating electrode atomization method, and sieving the powder to obtain titanium-nickel alloy powder with a particle size of 15-53 ?m; placing the obtained titanium-nickel alloy powder in a discharge plasma assisted ball mill for discharge treatment to perform surface modification of the powder; and subjecting the titanium-nickel alloy powder to SLM forming to obtain the titanium-nickel shape memory alloy.

Abstract: Provided is a method for manufacturing a display panel. First, the method includes sequentially preparing an anode layer and a first pixel define layer on a side of a substrate layer, then coating an organic light-induced material on a first surface, distal from the anode layer, of the first pixel define layer, and forming a polymer film layer by reacting the first pixel define layer with the organic light-induced material under a predetermined condition, and then preparing an organic functional layer and a cathode layer on a surface, distal from the first pixel define layer, of the organic light-induced material. The organic light-induced material at least contains a hydroxyl group and an unsaturated carbon-carbon double bond.

Abstract: A group delegation computing method includes: executing a key generation algorithm to obtain various types of keys; executing a member joining algorithm to implement a member joining function, combining customers with the same need into a group, and delegating a blinded delegation function to a cloud server; executing a question generation algorithm to generate a group signature and delegating a computing task to the cloud server; executing a signature verification algorithm to output a verification result; executing a computing algorithm only when a signature is valid to obtain a computing result and a correctness proof; executing a blind verification algorithm to verify whether the result; if the result is correct, executing a recovery algorithm; executing a member revocation algorithm to perform a member revocation function; and when there is a dispute over the delegation computing, executing an open algorithm to trace an identity of a specific member.

Abstract: Embodiments of the present application provides a ray scanning apparatus, which includes: a conveying device for conveying an object under inspection to pass through a scanning region of the ray scanning apparatus; a ray source assembly including a plurality of ray source modules, each of the ray source modules including at least one ray source point emitting a ray beam; and a detector assembly for detecting rays transmitting through the object under inspection during scanning and including a plurality of detector sets.

Abstract: A ray scanning apparatus, including: a conveying device; a ray source assembly including a plurality of ray source modules arranged around the scanning area in a non-enclosed structure opened on one side of the scanning area; and a detector assembly including a plurality of detector sets arranged around the scanning area in a non-enclosed structure opened on one side of the scanning area, where the opening of the non-enclosed structure of the ray source assembly is opposite to the opening of the non-enclosed structure of the detector assembly, the plurality of detector sets are fixed in a same plane perpendicular to the conveying direction of the object under inspection, and the plurality of ray source modules of the ray source assembly are arranged in a plurality of different planes perpendicular to the conveying direction of the object under inspection.

Abstract: Disclosed are a cell selection method, an electronic device, and a storage medium. The method may include: a list of resource blocks of a cell is obtained; the list of resource blocks is traversed, whether the current resource block is occupied is detected according to the energy of a reference signal in the current resource block and the energy of a time-frequency resource unit in the current resource block, and the number of occupied resource blocks in the cell is obtained; and a cell is selected according to the number of the occupied resource blocks and a signal measurement value of the cell.

Abstract: A long-span corridor comprising two sets of floor cantilevered inclined trusses combined with suspension cable bearing is provided, including floor cantilevered inclined trusses, floor double-arch trusses, radial circumferential connecting structures, V-shaped support structures, corridor truss structures and suspension cable bearing structures; two trapezoidal tapering planar inclined trusses of each set of floor cantilevered inclined trusses are connected to each other through a combination of the floor double-arch trusses and through the radial circumferential connecting structures to form a single-set system; and the corridor truss structures are arranged between the two single-set systems.

Abstract: Planar, double-side cooled half-bridge power modules using sintered-silver interposers and all sintered-silver joints are described. Thermo-mechanical simulations showed that use of the sintered-silver interposers reduce the thermo-mechanical stresses at vulnerable interfaces as compared to using solid copper interposers. The porous sintered-silver interposers are also easily deformable under a low load, which improves the yield of module interconnections in the presence of imperfections caused by variations in die thickness, interposer height, and substrate distortion. Results on the electrical performance of the modules validate the fabrication approach for the modules, for making high power-density converters with reliable operations at high junction temperatures.

Abstract: This application provides a plug-in implementation system and method. The system includes a plug-in module and a terminal software module. When the terminal software module does not include a service implementation of a first plug-in interface, the plug-in module may load a default implementation of the first plug-in interface to invoke the first plug-in interface. In this way, a plug-in may be extended to extend a service function of a terminal. In addition, when the plug-in interface is inconsistent with a plug-in function, the default implementation of the plug-in interface is implemented by using the plug-in module, so that an open-source software module can run normally, to ensure normal running of an electronic device as much as possible. Therefore, the open-source software module no longer depends on the terminal software module, and the terminal software module can be decoupled from the open-source software module.

Abstract: A propulsion control device of a 3D printing-based tunnel boring machine, includes two propulsion control modules, and each of which includes tunnel support assemblies, a propulsion control assembly and a barrel body, where a propulsion sliding sleeve is arranged on an outer surface, and several tunnel support assemblies are arranged on an outer side of each propulsion sliding sleeve. Support plates on the two propulsion control modules alternately rise to support a 3D printed tunnel pipe. In the propulsion control module with the support plates in a closed state, a propulsion hydraulic cylinder controls a propulsion hydraulic cylinder extending end to contract, so as to pull the propulsion sliding sleeve to a front section of the barrel body; and in the propulsion control module with the support plates in a support state, the barrel body continuously advances relative to the propulsion sliding sleeve.

Abstract: The invention relates to a heat exchange fin, with a tube hole formed thereon for a heat exchange tube to be inserted into. A corrugated structure is arranged near the tube hole. The corrugated structure comprises a wave section arranged along a flow direction of fluid medium. The distance between two adjacent wave crests or wave troughs of the wave section is one wavelength. The total length of the wave section is 1-1.5 times the wavelength. A bridge plate is arranged at the wave crests and wave troughs of the wave section, respectively. The bridge plate deflects relative to the wave crests and wave troughs by a preset distance. The invention also proposes a heat exchanger configured with the heat exchange fins, and a heat pump system configured with the heat exchanger.

Abstract: Disclosed are a blockchain-based transparent supply chain authentication method and apparatus, and a device and a medium.