Abstract: The disclosure relates to a method of driving a display and the display, wherein the driving method includes: determining a grayscale extreme value corresponding to a polarity of display data of a target frame image according to the polarity; adjusting a voltage value of a first power supply voltage of the display according to the grayscale extreme value to obtain a voltage value of a second power supply voltage; and driving the display for displaying according to the voltage value of the second power supply voltage and the display data of the target frame image.

Abstract: The present disclosure provides a signal processing method, a storage medium, an integrated circuit, a device, and a terminal. The method is applied to perform interference detection and/or constant false alarm detection on signal units of a discrete signal to be detected, and includes: obtaining, for any signal unit, a signal statistical characteristic value of a respective discrete point in the signal unit; determining, based on the signal statistical characteristic value of the respective discrete point, a detection threshold for the signal unit; and, based on the detection threshold, performing constant false alarm detection, and/or, determining whether the respective discrete point is subject to interference.

Abstract: A water tank assembly including a tank body and a one-way valve is provided. The tank body is defined with a clean water cavity communicated with an external pipeline through a water inlet channel, the external pipeline is capable of transporting water to the clean water cavity. The one-way valve is arranged in the water inlet channel and has a first and a second state. During delivering clean water to the clean water cavity, the one-way valve is in the first state to allow water in the external pipeline to be delivered to the clean water cavity, and when clean water is stopped to supply to the clean water cavity, the one-way valve is changed to the second state to restrict the water in the water inlet channel flowing out, such that outflow of the clean water from the water inlet channel is blocked when the external pipeline is removed.

Abstract: A driving method for a display and a display are provided. The driving method includes: obtaining a first gray scale extremum of a target image frame according to display data of the target image frame; adjusting a first power voltage according to the first gray scale extremum, to obtain a second power voltage; and driving, according to the second power voltage and the display data of the target image frame, the display for displaying. By means of the present disclosure, the second power voltage can be dynamically adjusted, thereby ensuring the display effect and reducing the energy consumption of the display panel.

Abstract: A display panel and a driving method thereof are provided. The driving method includes: acquiring a display synchronization signal, and according to it to determine a first backlight synchronization signal including a plurality of second pulses corresponding to a plurality of first pulses in the display synchronization signal; acquiring a display setting frequency greater than a minimum value of refresh rates of frame images, and according to it to determine a unit backlight clock signal, where a duration of the unit backlight clock signal is equal to of a reciprocal of the display setting frequency; and generating a third pulse between some two adjacent second pulses to drive a backlight plate to emit light.

Abstract: An early warning method for safety production risk of tailings pond based on risk ranking is provided. The early warning method includes: monitoring and collecting internal basic data of a tailings pond in real-time, and performing a basic monitoring and a basic early warning; collecting geographical location data, meteorological data, and historical geological disaster data of an area where the tailings pond is located; performing risk ranking on a safety production risk of the tailings pond, thereby obtaining a risk level of the tailings pond; and collecting case data of global tailings pond accidents and hazard degree data thereof, acquiring accident solution strategies for the global tailings pond accidents, performing management and monitoring on the tailings pond, setting parameters in a process of the basic monitoring, and performing a ranked early warning on the safety production risk of the tailings pond based on the risk level.

Abstract: An early warning method for safety production risk of tailings pond based on risk ranking is provided. The early warning method includes: monitoring and collecting internal basic data of a tailings pond in real-time, and performing a basic monitoring and a basic early warning; collecting geographical location data, meteorological data, and historical geological disaster data of an area where the tailings pond is located; performing risk ranking on a safety production risk of the tailings pond, thereby obtaining a risk level of the tailings pond; and collecting case data of global tailings pond accidents and hazard degree data thereof, acquiring accident solution strategies for the global tailings pond accidents, performing management and monitoring on the tailings pond, setting parameters in a process of the basic monitoring, and performing a ranked early warning on the safety production risk of the tailings pond based on the risk level.

Abstract: A light-emitting device, a light-emitting substrate, and a method for manufacturing the light-emitting device. The light-emitting device includes at least one light-emitting structure. The light-emitting structure includes: a first semiconductor layer; a light-emitting layer; a second semiconductor layer, doping ions of the second semiconductor layer and a first semiconductor layer being oppositely charged; a barrier structure provided with an opening for exposing the second semiconductor layer, the orthographic projection of the opening on the base substrate being located in the orthographic projection of the light-emitting layer on the base substrate, and the area of the opening being smaller than that of the light-emitting layer; and a landing electrode located on the side of the barrier structure facing away from the second semiconductor layer, the landing electrode being in contact with the second semiconductor layer by means of the opening.

Abstract: An epoxy resin composition, a transparent composite material including the same, and a laminated board. The epoxy resin composition includes an epoxy resin A and an epoxy resin B. The refractive index of the epoxy resin A is 1.54-1.8 and the light transmittance of the epoxy resin A is 90%. The refractive index of the epoxy resin B is 1.54-1.8 and the light transmittance of the epoxy resin B is greater than 90%. The epoxy resin A is an organosilicon modified epoxy resin. The epoxy resin B is another type of epoxy resin. The organosilicon modified epoxy resin satisfying a specific condition and another type of epoxy resin also satisfying the specific condition are combined to form a specific epoxy resin composition. The composite material prepared from the epoxy resin composition, a curing agent, and a curing accelerator has the advantages of having high light transmittance and high bending strength, and also has high bonding strength.

Abstract: This application discloses a network fault analysis method and apparatus. The method includes: obtaining information about a first abnormal event and information about a second abnormal event; determining first fault cause description information and second fault cause description information respectively based on the information about the first abnormal event and the information about the second abnormal event, where each of the first and the second fault cause description information is used to describe a cause of occurrence of a corresponding abnormal event; and determining, based on event identifiers in the information about the first and the second abnormal events, and the first and the second fault cause description information, that the first abnormal event corresponding to the first fault cause description information is a cause event that causes occurrence of the second abnormal event corresponding to the second fault cause description information.

Abstract: A pixel driving circuit and a display panel are provided by the present application. An electrical potential of a control terminal of a driving module can be kept stable through a detection module by connecting the detection module with a control terminal of the driving module when detecting a threshold voltage of the driving module. In this way, an obtained threshold voltage of the driving module is accurate, to make the threshold voltage of the driving module can be accurately compensated, and a display uniformity and a stability of the display panel are improved.

Abstract: The present disclosure discloses a vacuum degree detection device, a monitoring system and a vacuum arc-extinguishing chamber thereof, wherein, in the vacuum degree detection device, a ceramic insulating housing is sealingly fixed to an end face cover plate of the vacuum arc-extinguishing chamber, the ceramic insulating housing is a circular ring-shaped structure coaxial with a conductive rod on the end face cover plate, a sealing area formed by the end face cover plate and the ceramic insulating housing is provided with a through hole communicating with the vacuum arc-extinguishing chamber; a thermoelectric vacuum sensor is disposed inside the ceramic insulating housing to detect the vacuum degree of the vacuum arc-extinguishing chamber, a cold end is fixed to the end face cover plate, an electrode is supported on the cold end, a thermoelectric arm is supported on the electrode, a hot end is laminated to the thermoelectric arm.

Abstract: A conductive silver aluminum paste includes the following components by weight percentage: 80.0%-90.0% of silver powder; 0.3%-2.5% of aluminum powder; 0.0%-1.5% of silicon powder; 1.0%-6.0% of first-type glass powder; 0.5%-4.0% of second-type glass powder; and 7.0%-15.0% of organic vehicle. The first-type glass powder is Pb-Zn-B-O-M glass powder, and the second-type glass powders is Ba-B-O-M glass powder, M is at least one of alkali metal elements; the organic vehicle is a vehicle of organic resin and/or cellulose, and a content of the organic resin and/or the cellulose in the organic vehicle is not higher than 10.0% of a total mass of the organic vehicle. By introducing two different types of glass powder, the contact resistance between the metal grid and the PN junction layer is reduced, thereby obtaining high-performance silver aluminum pastes for N-type Topcon monocrystalline silicon cells and high-efficiency electrode metallization for N-type silicon solar cells.

Abstract: The present application provides a method for driving a mini-LED backlight module. The method includes dividing the mini-LED backlight module into a plurality of partitions along an extending direction of a data line, dividing a period of each frame used in the mini-LED backlight module into an adjusting sub-field, and adjusting durations of a bright sub-field or a dark sub-field of the adjusting sub-field corresponding to different partitions based on different gray modes. In such a way, the brightness of each partition falls within a configured brightness threshold range.

Abstract: A source-network coordination type direct-current (DC) circuit breaker based on pre-charged capacitors for an MMC based DC grid is provided. The MMC based DC grid is provided with four converter stations, each having two converters, which are in loop connection through a double-loop DC overhead line. Two ends of each DC line connecting the converters are separately equipped with DC circuit breakers for isolating a fault of the DC line. An MMC active voltage adjusting control strategy is matched with pre-charged capacitor voltage in the self-adaptive mode to provide a beneficial breaking condition for a quick mechanical switch branch, so that the fault line is effectively cut off.

Abstract: A control method for a backlight unit, a display panel, and a display device are disclosed. The control method includes obtaining ambient temperature through a temperature detection module; comparing the ambient temperature with a first standardized temperature reference value; and determining a driving mode of a light-emitting unit included in the backlight unit based on a comparison result. When the ambient temperature is higher than or equal to the first standardized temperature reference value, a driving method includes first driving subfields, and each of the first driving subfields consists of a bright subfield and a dark subfield.

Abstract: An energy-saving paddlewheel aerator is provided. A power supply system of the paddlewheel aerator includes a switching power supply converting main power to direct current, the switching power supply being connected with two terminals of a power mechanism of the paddlewheel aerator and supplying power to the paddlewheel aerator; and a solar power supply module, two ends of the solar power supply module being connected in parallel with a large-capacity capacitor, and two ends of the large-capacity capacitor being connected with the two terminals of the power mechanism of the paddlewheel aerator respectively to supply power to the paddlewheel aerator. A rated output voltage of a solar panel with sufficient power is higher than an output voltage of the switching power supply, and the rated output voltage of the solar panel with insufficient power is lower than the output voltage of the switching power supply.

Abstract: A driving circuit includes at least one first module, an electrostatic charge/discharge module connected to the first module and a grounding module; each first module includes a driving module, a signal transmission module and a gating module; the signal transmission module is connected to and transmits a driving signal to the driving module; the grounding module is grounded; the gating module is connected with the signal transmission module; the gating module is turned on with its turn-on voltage less than or equal to a voltage of the signal transmission module, or turned off with the turn-on voltage greater than the voltage of the signal transmission module; the turn-on voltage of the gating module is greater than that of the driving module; the charge/discharge module is connected to the gating module and the grounding module, and configured to store charges flowing therethrough and release the charges to the grounding module.

Abstract: The invention discloses an islanding detection method in DC microgrids based on MPPT trapezoidal voltage disturbance. The steps are as follows: start the MPPT strategy; set the starting signal threshold of disturbance; measure the output current of PVA at the maximum power; calculate the same environmental factor of PVA with different capacities under the same light intensity and temperature in real time; when the environmental factor is greater than the starting signal threshold of the disturbance, periodic trapezoidal disturbance is carried out to the PVA port voltage reference; if the PCC voltage Upcc exceeds the threshold set by the passive method, it is judged as islanding; otherwise, it is judged whether the change rule of Upcc is consistent with the change rule of the calculated PCC voltage Upccp under the trapezoidal disturbance; If it is consistent, it is judged as islanding; otherwise, it is pseudo islanding.

Abstract: A driving circuit includes at least one first module, an electrostatic charge/discharge module connected to the first module and a grounding module; each first module includes a driving module, a signal transmission module and a gating module; the signal transmission module is connected to and transmits a driving signal to the driving module; the grounding module is grounded; the gating module is connected with the signal transmission module; the gating module is turned on with its turn-on voltage less than or equal to a voltage of the signal transmission module, or turned off with the turn-on voltage greater than the voltage of the signal transmission module; the turn-on voltage of the gating module is greater than that of the driving module; the charge/discharge module is connected to the gating module and the grounding module, and configured to store charges flowing therethrough and release the charges to the grounding module.