Abstract: The present application discloses a method for preparing a pixel cell of a CMOS image sensor. Process optimization and adjustment for multiple times of ion implantation in a pixel area of the CMOS image sensor are carried out. That is, photodiode N-type ion implantation is performed before formation of a polysilicon gate of each MOS transistor of a CMOS pixel readout circuit, a photoresist open area is enlarged by means of a photoresist dry etching descum process such that an N-type ion implantation area is enlarged, and second photodiode N-type ion implantation is performed on the basis of the photoresist dry etching descum process, so as to achieve two times of photodiode N-type ion implantation using the same mask, with different depths and different pattern sizes, thereby forming an N-type area of the photodiode that tapers to the bottom, saving a mask layer, and reducing photolithography steps.

Abstract: Techniques for low power indoor/outdoor detection are disclosed. In the illustrative embodiment, an integrated sensor hub receives data from an accelerometer. The sensor hub processes the accelerometer data to determine an activity of the user. Depending on the activity of the user, the sensor hub may determine whether the compute device is indoors or outdoors or may receive data from additional sensors, such as a magnetometer, a gyroscope, or an ambient light sensor. The additional sensor data may be used to determine whether the compute device is inside or outside.

Abstract: A chip structure and a method for manufacturing the same, and a display apparatus. The chip structure includes a chip wafer unit and a color conversion unit disposed on a light exit side of the chip wafer unit. The color conversion unit includes a base substrate; the base substrate includes a body portion and an edge portion surrounding the body portion; the edge portion includes original layers and modified layers alternately arranged along a first direction; and in the edge portion, layers located on outermost two sides in the first direction are both original layers, the first direction being perpendicular to a surface of the base substrate away from the chip wafer unit. A light reflectivity of the original layers and a light reflectivity of the modified layers are different.

Abstract: A display panel comprises a driving substrate (1), a light-emitting layer (2) and a light guide layer (3); the light-emitting layer (2) is arranged on one side of the driving substrate (1) and comprises a plurality of front light-emitting units (21) and a plurality of rear light-emitting units (22), each of the rear light-emitting units (22) comprising a light source part (221) and a light extracting part (222), and the front light-emitting units (21) and the light source parts (221) being configured for emitting light towards a side away from the driving substrate (1); and the light guide layer (3) comprises a plurality of light guide parts (31), each light guide part (31) being configured to guide light emitted by the light source part (221) of a corresponding rear light-emitting unit (22) to the light extracting part (222).

Abstract: A point cloud encoding method, including: obtaining attribute information about the attributes of a current point in a point cloud; processing the attribute information of the current point to obtain a residual value of the attribute information of the current point; using a target quantization manner, quantizing the residual value of the attribute information of the current point to obtain a quantized residual value of the attribute information of the current point; the target quantization manner comprises at least two of the following quantization manners: a first quantization manner, a second quantization manner, and a third quantization manner.

Abstract: The present invention relates to the technical field of electrocatalytic electrode preparation, and discloses a lead dioxide-carbon nanotube adsorptive electrochemical submicroelectrode, a preparation method, and use thereof. The electrochemical submicroelectrode according to the present invention comprises multiple layers of orderly arranged spherical lead dioxide submicroholes communicating with each other, where the carbon nanotubes are partially or completely inserted (in the form of twigs) in the lead dioxide hole and in the wall of the hole. The combined effect of adsorption and catalysis inside the submicroreactor effectively solves the problems of low catalytic efficiency and diffusion control associated with the conventional flat lead dioxide electrode, thus greatly improving the electrochemical catalytic performance of the electrode.

Abstract: A display substrate has blocking structures. The display substrate includes a base substrate, a display structure on a display area of the base substrate, at least one blocking structure on a peripheral area around the display area of the base substrate, and a first water-blocking layer on the substrate. The first water-blocking layer may cover the display structure and the at least one blocking structure. The blocking structure may be configured to block cracks generated on the first water-blocking layer at a side of the blocking structure opposite from the display area from propagating to the display area.

Abstract: A large model-based recommendation method includes: determining description information of interested content corresponding to a target user; inputting a content to be recommended, the description information of interested content and current popular search sentences into a large model to generate at least one recommendation card corresponding to the content to be recommended, in which the recommendation card contains a recommendation word associated with the content to be recommended; obtaining a current behavior characteristic of the target user; and in response to the current behavior characteristic satisfying a display condition of the recommendation card, displaying the recommendation card corresponding to at least one content to be recommended.

Abstract: Provided are a point cloud encoding method and decoding method, and an encoder and a decoder. The encoding method includes: processing attribute information of a target point in a point cloud, so as to obtain a predicted residual of the attribute information of the target point; quantizing the predicted residual on the basis of a quantized weight of the target point and a quantized stride of the target point, so as to obtain a quantized residual of the attribute information of the target point, wherein the quantized weight of the target point is the weight used when weighting the quantized stride of the target point; and encoding the quantized residual, so as to obtain a code stream.

Abstract: The present disclosure relates to methods and electronic devices for predicting a fertile period. In one example method, an electronic device obtains physiological parameters of a user and menstruation data entered by the user, and obtains a time length for which the user has worn a wearable device. If the time length for which the user has worn the wearable device is greater than or equal to a predetermined time length, the electronic device determines whether a current time is within a fertile period, and if the current time is not within the fertile period, the electronic device determines whether the current time has entered an initial window. If the current time is within the initial window, the electronic device reduces a length of the initial window, and outputs a reduced window.

Abstract: The present disclosure provides a method for controlling a resonant circuit and a resonant circuit. The resonant circuit to which the method is applicable includes: a primary switching circuit, configured to receive an input voltage; a resonant branch, including a capacitor and an inductor connected in series; a transformer, including a primary winding and a secondary winding, and the resonant branch is connected between the primary switching circuit and the primary winding; and a secondary switching circuit, connected to the secondary winding and configured to provide an output voltage to a load, and the secondary switching circuit includes a synchronous rectifier switch, and the synchronous rectifier switch includes a body diode; the method includes: adjusting, in different working periods, a conduction time of the body diode to cause a switching frequency of the resonant circuit to change.

Abstract: A point cloud encoding method, including: obtaining attribute information about the attributes of a current point in a point cloud; processing the attribute information of the current point to obtain a residual value of the attribute information of the current point; using a target quantization manner, quantizing the residual value of the attribute information of the current point to obtain a quantized residual value of the attribute information of the current point; the target quantization manner comprises at least two of the following quantization manners: a first quantization manner, a second quantization manner, and a third quantization manner.

Abstract: The disclosure provides a display panel, a manufacturing method thereof, and a display device, which belong to the field of display technology. The display panel includes a plurality of display islands (SPXL) and a plurality of deformable bridging units (SBRI); the plurality of display islands (SPXL) are separated from each other; and two adjacent display islands (SPXL) are connected by the bridging units (SBRI); the display island (SPXL) has at least one display unit (Upxl); and the bridging unit (SBRI) has an external signal wiring electrically connected to the display unit (Upxl).

Abstract: A road network balanced drainage method aimed at reducing urban waterlogging is disclosed. According to the drainage demand, the existing intersection elevation is changed or the intersection elevation that meets the drainage requirement is designed and implemented in new construction so that the intersection drainage is distributed according to the desired proportion; the water flowing to the water accumulation position is transferred to reduce the waterlogging degree. Through the analysis of the depth of water accumulation in the whole road network, the method of water flow distribution at the intersection is used to make the precipitation flow evenly distributed in the whole road network. The method can be used for solving serious water accumulation of a certain road section, the balanced drainage of the whole road network, the technical transformation of existing intersections, and for the planned and designed roads. The method can effectively eliminate and prevent urban waterlogging.

Abstract: The present disclosure provides a silicon-based mask, a manufacturing method, and a display panel. The silicon-based mask includes a first silicon wafer and a second silicon wafer laminated one on another. The first silicon wafer includes a first via hole, the second silicon wafer includes a second via hole, an orthogonal projection of a wall of the first via hole onto the second silicon wafer surrounds the second via hole, and under a same etching condition, an etching rate of the second silicon wafer is smaller than an etching rate of the first silicon wafer.

Abstract: A multi-level conversion circuit and a cycle-by-cycle protection method therefor are provided. The cycle-by-cycle protection method includes steps of: (a) determining main switches and synchronous rectification switches; (b) controlling the main switches to operate in a normal mode; (c) detecting a current flowing through the inductor, and determining whether the current exceeds a threshold; (d) when the current exceeds the threshold, defining the main switch in an on state and having longest turn-on duration as a target main switch, switching the target main switch to a current limiting mode; and (e) after the target main switch is switched to the current limiting mode, if the current is lower than the threshold, at a moment when a rising edge of a control signal in a reference mode for the target main switch firstly appears, switching the target main switch to a state in the reference mode corresponding to the moment.

Abstract: A multi-level conversion circuit and a cycle-by-cycle protection method therefor are provided. The cycle-by-cycle protection method includes steps of: (a) determining main switches and synchronous rectification switches; (b) controlling the main switches to operate in a normal mode; (c) detecting a current flowing through the inductor, and determining whether the current exceeds a threshold; (d) when the current exceeds the threshold, defining the main switch in an on state as a target main switch, switching the target main switch to a current limiting mode for turning off the target main switch; and (e) after the target main switch is switched to the current limiting mode, if the current is lower than the threshold, at a moment when a falling edge of control signals in a reference mode for the main switches first appears, switching the target main switch to a state in the reference mode corresponding to the moment.

Abstract: A multi-level conversion circuit and a cycle-by-cycle protection method therefor are provided. The cycle-by-cycle protection method includes steps of: (a) determining main switches and synchronous rectification switches; (b) controlling the main switches to operate in a normal mode; (c) detecting a current flowing through the inductor, and determining whether the current exceeds a threshold; (d) when the current exceeds the threshold, defining the main switch in an on state and having shortest turn-on duration as a target main switch, switching the target main switch to a current limiting mode for turning it off; and (e) after switching the target main switch to the current limiting mode, if the current is lower than the threshold, at a moment when a falling edge of control signals in a reference mode for the main switches first appears, switching the target main switch to a state in the reference mode corresponding to the moment.

Abstract: The disclosure provides for a vaccine depot formulation that comprises a biodegradable thermosensitive hydrogel that has been loaded or embedded with nanoparticles that comprise an antigen and adjuvant, and uses thereof for protecting a subject from an infection or disease.

Abstract: The present disclosure provides a display substrate, a manufacturing method thereof and a display device. The display substrate includes a base substrate, including a hollowed-out region, an island and a connection bridge; a plurality of display units; and a source/drain metal pattern, including patterns of a plurality of signal lines. On the island, a plurality of inorganic film layers is arranged between the base substrate and the source/drain metal pattern, and the plurality of inorganic film layers includes a first inorganic film layer arranged at a side furthest away from the base substrate. On the connection bridge, at least one first organic film layer is arranged between the base substrate and the source/drain metal pattern.