Abstract: Provided are a driver board, a display panel, and a display apparatus. The driver board includes a driver circuit. The driver circuit includes N pixel electrodes, N pixel switches, a data switch, and a storage capacitor, N is a positive integer, and N?2. The storage capacitor includes a reference electrode and a counter electrode. A control terminal of the pixel switch receives a gating signal, a first terminal of the pixel switch is connected to the counter electrode, and a second terminal of the pixel switch is connected to the pixel electrode. The driver board further includes data lines, and each data line is connected to the counter electrode via the data switch.

Abstract: A detection substrate including a substrate and a plurality of detection units disposed on a side of the substrate, each detection unit including at least an inorganic transistor, an organic transistor, and a photoelectric sensor element, the organic transistor including an organic semiconductor part, in a direction perpendicular to a plane of the substrate, a film layer where the organic semiconductor part is located being located on the side of the film layer where the inorganic transistor is located away from the substrate, the film layer where the organic semiconductor part is located being located on the side of a film layer where the photoelectric sensor element is located away from the substrate, the organic transistor of the detection unit being connected to a sensing electrode, the sensing electrode being located on the side of the film layer where the inorganic transistor is located away from the substrate.

Abstract: A system for proctoring online exams includes a client-side computing system and a visual analytics system. The client-side computing system includes a camera configured to obtain video data corresponding to a user while taking an exam and one or more input devices configured to obtain interaction data, wherein the interaction data includes mouse movements of the user while taking the exam. The visual analytics system is configured to obtain the video data and the interaction data from the client-side computing system, analyze the exam data to detect abnormal behavior by the user based at least in part on mouse movement data, and generate one or more visualizations of the analyzed exam data to be used in determining whether or not the user has cheated during the exam.

Abstract: Disclosed are a foldable screen and a display device. The foldable screen includes: a flexible display panel and a plurality of elastic portions, wherein each of the elastic portions includes each of elastic support members and two connecting rods fixedly connected to each of the elastic support members; wherein the two connecting rods are respectively connected to two flat portions of the flexible display panel, and the elastic support members are configured to supply a support force to the foldable portion in the case that a display surface of the foldable portion of the flexible display panel is coplanar with those of the flat portions.

Abstract: Implementations of the present specification describe an intention identification model training method and apparatus, and an intention identification method and apparatus. According to the methods in the implementations, training of a target question can be weakened in the first several rounds of model training, and then an intention identification model obtained in the first several rounds of training can be used to identify intentions corresponding to answers that are to be distinguished. Further, the intention identification model is trained again after labels of these intentions are reset, so that the intention identification model obtained through training can also have a good identification effect on an answer to the target question, thereby improving accuracy of intention identification.

Abstract: A deformable array of semiconductor devices, and a method of manufacturing such a deformable array. The deformable array comprises a plurality of islands, where each island contains at least one semiconductor device, and the plurality of islands are arranged in an auxetic geometry.

Abstract: Implementations of the present specification disclose an event risk detection method, apparatus, and device.

Abstract: A method and a device for a chip layout, computer equipment, and a medium. The method includes steps of: determining external interfaces and internal interfaces of a chip, where the internal interface is a port of a component of the chip; constructing, according to the external interfaces and the internal interfaces, an objective function, where the objective function is applied to describe a wiring length of the chip; determining a target value of the objective function through a preset genetic algorithm, where the target value is applied to determine a first layout diagram of the chip; determining, based on an operation temperature of an internal chip as the component of the chip, a second layout diagram of the chip; performing an image fusion on the first layout diagram and the second layout diagram to obtain a target layout diagram of the chip.

Abstract: A porous solid electrolyte electrosynthesis cell and corresponding related process for the direct synthesis of high purity liquid products wherein the electrosynthesis cell comprises a cathode compartment including a cathode electrode comprising a gas diffusion layer loaded with a selective reduction reaction electrocatalyst for specific reduction reactions. The electrosynthesis cell further includes an anode compartment including an anode electrode comprising a gas diffusion layer loaded with a catalyst for oxidation reactions; and a solid electrolyte compartment comprising a porous solid electrolyte; a cation exchange membrane; and an anion exchange membrane; (or two cation exchange membranes) wherein the solid electrolyte compartment is separated from the cathode and the anode by the anion exchange membrane and the cation exchange membrane (or by the two cation exchange membranes).

Abstract: A breathable film includes a substrate, a membrane disposed on the substrate, and an adhesive interposed between the substrate and the membrane. The membrane includes a plurality of fibers of polyvinylidene fluoride. The breathable film has an air transmission rate equal to or greater than 4000 ml/min/cm2 under air pressure of 70 mbar.

Abstract: An organic electroluminescence display panel, a manufacturing method thereof and a display device are provided. The manufacturing method includes: forming an organic electroluminescent display component on a base substrate; providing an encapsulation cover; forming a high-temperature resistant film on at least a partial region of a surface of the organic electroluminescent display component and/or a surface of the encapsulation cover with the at least a partial region corresponding to pixels at an outermost edge of the organic electroluminescent display component; forming a frit on the encapsulation cover or the base substrate to surround a region of the encapsulation cover or the base substrate corresponding to the pixels at the outermost edge of the organic electroluminescent display component; assembling the encapsulation cover with the organic electroluminescent display component, and sintering a region of the encapsulation cover corresponding to a region of the frit with laser.

Abstract: A breathable film includes a substrate, a membrane disposed on the substrate, and an adhesive interposed between the substrate and the membrane. The membrane includes a plurality of fibers of polyvinylidene fluoride. The breathable film has an air transmission rate equal to or greater than 4000 ml/min/cm2 under air pressure of 70 mbar.

Abstract: An online system maintains pages and accesses a graph of nodes representing the pages. Each node is labeled to indicate that a corresponding page is for a real-world entity, an imposter of the real-world entity, or a derived entity complying with or violating a policy. The online system retrieves machine-learning models, each of which is trained based on labels for a set of the nodes and features of corresponding pages. A first model predicts whether a page is for a derived entity based on features of the page. Responsive to predicting the page is not for a derived entity, a second model predicts whether the page is for a real-world entity or an imposter based on features of the page. Responsive to predicting the page is for a derived entity, a third model predicts whether the derived entity complies with or violates the policy based on features of the page.

Abstract: An online system maintains pages and accesses a graph of nodes representing the pages. Each node is labeled to indicate that a corresponding page is for a real-world entity, an imposter of the real-world entity, or a derived entity complying with or violating a policy. The online system retrieves machine-learning models, each of which is trained based on labels for a set of the nodes and features of corresponding pages. A first model predicts whether a page is for a derived entity based on features of the page. Responsive to predicting the page is not for a derived entity, a second model predicts whether the page is for a real-world entity or an imposter based on features of the page. Responsive to predicting the page is for a derived entity, a third model predicts whether the derived entity complies with or violates the policy based on features of the page.

Abstract: An organic electroluminescent display panel and a display device is disclosed. The organic electroluminescent display panel includes: a pixel array; a packaging adhesive surrounding the pixel array; and a laser reflector located between the pixel array and the packaging adhesive. The laser reflector includes a top surface inclined toward the packaging adhesive which reflects the edge portion of the laser to the packaging adhesive.

Abstract: A deformable array of semiconductor devices, and a method of manufacturing such a deformable array. The deformable array comprises a plurality of islands, where each island contains at least one semiconductor device, and the plurality of islands are arranged in an auxetic geometry.

Abstract: Described here is a method for improving the catalytic activity of an electrocatalyst, comprising subjecting the electrocatalyst to 1-10 galvanostatic lithiation/delithiation cycles, wherein the electrocatalyst comprises at least one transition metal oxide (TMO) or transition metal chalcogenide (TMC). Also described here is an electrocatalyst and a water-splitting device comprising the electrocatalyst.

Abstract: An organic electroluminescent display panel and a display device is disclosed. The organic electroluminescent display panel includes: a pixel array; a packaging adhesive surrounding the pixel array; and a laser reflector located between the pixel array and the packaging adhesive. The laser reflector includes a top surface inclined toward the packaging adhesive which reflects the edge portion of the laser to the packaging adhesive.

Abstract: Described here is a method for improving the catalytic activity of an electrocatalyst, comprising subjecting the electrocatalyst to 1-10 galvanostatic lithiation/delithiation cycles, wherein the electrocatalyst comprises at least one transition metal oxide (TMO) or transition metal chalcogenide (TMC). Also described here is an electrocatalyst and a water-splitting device comprising the electrocatalyst.