Abstract: Provided is a liquid crystal display panel, including: first and second substrates; a liquid crystal layer between the first and second substrates; a first linear polarizer provided at a side of the first substrate facing away from the liquid crystal layer and having an absorption axis extending along a first direction; a second linear polarizer provided at a side of the second substrate facing away from the liquid crystal layer and having an absorption axis extending along a direction perpendicular to the first direction; a first quarter-wave plate provided at the side of the first substrate facing away from the liquid crystal layer; a second quarter-wave plate between the first substrate and the liquid crystal layer; and a first half-wave plate provided at the side of the first substrate facing away from the liquid crystal layer, and/or a second half-wave plate between the first substrate and the liquid crystal layer.

Abstract: System and method for regulating one or more currents. The system includes a system controller, an inductor, a first resistor, a switch and a first diode. The system controller includes a first controller terminal and a ground terminal, the system controller being configured to output a drive signal at the first controller terminal. The inductor includes a first inductor terminal and a second inductor terminal, the first inductor terminal being coupled to the ground terminal, the second inductor terminal being coupled to one or more light emitting diodes. The first resistor includes a first resistor terminal and a second resistor terminal, the first resistor terminal being coupled to the ground terminal. The switch is configured to receive the drive signal and coupled to the second resistor terminal. The first diode includes a first diode terminal and a second diode terminal and coupled to the first resistor.

Abstract: A method, a device, and a system for transmitting a multicast packet are provided. The method includes: when a device that is in a source subnet and that is connected to a core network receives a multicast packet of a target multicast group, determining addresses of devices that are in a plurality of destination subnets corresponding to the target multicast group and that are connected to the core network, replicating the multicast packet, to obtain a plurality of multicast packets whose quantity is equal to a quantity of the plurality of destination subnets, separately adding outer encapsulation to each multicast packet, and forwarding the multicast packet to which the outer encapsulation is added, where a destination address in the outer encapsulation is an address of a device that is in each destination subnet and that is connected to the core network.

Abstract: A communication system includes an antenna, a first wireless communication circuit, a second wireless communication circuit, a switching circuit, and a control circuit. During a second mode, a transmission and reception period of the antenna is divided by the control circuit into a plurality of first scheduling periods and a plurality of second scheduling periods interleaved with the first scheduling periods. The control circuit controls the switching circuit to select the first path or the second path to connect the antenna to the first wireless communication circuit or the second wireless communication circuit, according to a second priority sequence and a third priority sequence during the first scheduling periods and the second scheduling periods, respectively. The second priority sequence is different from the third priority sequence.

Abstract: The present disclosure provides a method and a system for training a machine learning system. Multiple pieces of sample data are used for training the machine learning system. The method includes acquiring multiple sample sets, each sample set including sample data in a corresponding sampling time period; setting a sampling rate for each sample set according to the corresponding sampling time period; acquiring multiple sample sets sampled according to set sampling rates; determining importance values of the multiple sampled sample sets; correcting each piece of sample data in the multiple sampled sample sets by using a corresponding importance value to obtain corrected sample data; and inputting the corrected sample data into the machine learning system to train the machine learning system.

Abstract: The present disclosure provides a desulfurization and sulfur recovery method for sulfur dioxide flue gas, and belongs to the technical field of non-ferrous metal smelting. The method includes the following steps: desulfurizing the sulfur dioxide flue gas by taking slagging flux limestone or quicklime for smelting or converting process as a desulfurizer, and adsorbing SO2 in the gas to obtain gypsum residue, calcium sulfite, and the desulfurized flue gas, where SO2 in the sulfur dioxide flue gas before desulfurization is less than 1 vol %; and recycling the gypsum residue and the calcium sulfite to the smelting or converting furnace for slagging, resolving the SO2 into smelting off-gas, producing sulfuric acid in acid plant.

Abstract: Provided are network security defense method and network security defense system. The method includes: processing data multiple times using a preset processing strategy, where the processing strategy includes a first strategy and a second strategy, the first strategy is used for eliminating an influence of generalized disturbance on the second strategy, the second strategy after being eliminated the influence is applied to the data for calculation, storage and communication of the data, the first strategy includes an encoding strategy, a decoding strategy and a memory elimination strategy, and the generalized disturbance includes random disturbance and/or non-random disturbance; triggering a feedback control strategy based on a decoding result of the multiple processing results; and adjusting the first strategy according to the feedback control strategy.

Abstract: System and method for controlling one or more light emitting diodes. For example, the system for controlling one or more light emitting diodes includes a current generator configured to generate a first current flowing through one or more light emitting diodes. The one or more light emitting diodes are configured to receive a rectified voltage generated by a rectifying bridge coupled to a TRIAC dimmer. Additionally, the system includes a bleeder configured to receive the rectified voltage, and a controller configured to receive a sensing voltage from the current generator and output a control signal to the bleeder. The sensing voltage indicates a magnitude of the first current.

Abstract: Touch display device, touch display panel, touch module and forming method thereof are provided. The touch module includes a substrate, and a first shadow elimination layer, a touch electrode layer, a second shadow elimination layer, and a bridge layer that are sequentially located on a side of the substrate. The touch electrode layer includes a plurality of first touch electrodes. The bridge layer includes a plurality of bridges, and a bridge of the plurality of bridges connects two adjacent first touch electrodes through a via passing through the second shadow elimination layer.

Abstract: System and method for voltage conversion to drive one or more light emitting diodes with at least a TRIAC dimmer. For example, the system includes: a phase detector configured to receive a first rectified voltage generated based at least in part on an AC input voltage processed by at least the TRIAC dimmer, the phase detector being further configured to generate a digital signal representing phase information associated with the first rectified voltage; a voltage generator configured to receive the digital signal and generate a DC voltage based at least in part on the digital signal; and a driver configured to receive the DC voltage and affect, based at least in part on the DC voltage, a current flowing through the one or more light emitting diodes; wherein the current changes with the phase information according to a predetermined function.

Abstract: System and method for controlling one or more light emitting diodes. For example, the system for controlling one or more light emitting diodes includes a current regulation circuit coupled to a cathode of one or more light emitting diodes. The one or more light emitting diodes include the cathode and an anode configured to receive a rectified voltage. Additionally, the system includes a control circuit coupled to the cathode of the one or more light emitting diodes. The control circuit is configured to receive a first voltage from the cathode of the one or more light emitting diodes, compare a second voltage and a threshold voltage, and generate a control signal based at least in part on the second voltage and the threshold voltage. The second voltage indicates a magnitude of the first voltage.

Abstract: An electronic device includes a housing, a display module, a camera and a drive structure. The display module includes a backlight module and a liquid crystal display, the backlight module includes a fixed backlight component and a movable backlight component, the liquid crystal display includes a first base assembly, a second base assembly, and a liquid crystal layer disposed between the first base assembly and the second base assembly, the second base assembly is disposed between the liquid crystal layer and the backlight module and includes a movable block, the movable block is disposed opposite to the movable backlight component, and the drive structure is connected with the camera, can drive the camera to move towards the movable backlight component, and can drive, via the camera, the movable backlight component and the movable block to squeeze the liquid crystal layer.

Abstract: Embodiments of the present disclosure relate to the field of network technologies, including a resource transfer method and apparatus and a storage medium. The method includes: storing a graphic code in the specified application client, the graphic code being sent by a specified server when a network is already connected, the graphic code including a user identifier used by the specified application client to log in to the specified server, and the graphic code being obtained by the specified server from a third-party server accessed by an interface of the specified server, and presenting a stored graphic code when detecting a graphic code calling operation.

Abstract: A film includes a sealing layer containing a polyethylene A having moieties derived from ethylene and moieties derived from an ?-olefin comprising 4 to 10 carbon atoms, the polyethylene A having a density of ?870 and ?920 kg/m3, wherein the polyethylene A has: a fraction of material that is eluted in analytical temperature rising elution fractionation (a-TREF) at a temperature ?30.0° C. of ?5.0 wt % and ?15.0 wt %, with regard to the total weight of the polyethylene; and two distinct peaks in the a-TREF curve in the elution temperature range of between 50.0 and 90.0° C., wherein the elution temperature gap between the two peaks is ?17.5° C. The film can be sealed at a desirably low temperature, whilst still having a desirable seal strength. Furthermore, the film demonstrates a desirably high heat stability.

Abstract: A winch integrated with a permanent magnet brushless motor and a controller includes a brushless motor and a controller. The brushless motor includes a stator having a wire coil, and a motor bracket. The stator is fixedly provided in the motor bracket. A rotor and a rotating shaft fixed in a rotor center are provided inside the stator. The rotating shaft is rotatably connected to the motor bracket, one end of the rotating shaft is fixedly connected with a magnet mount, and a cylinder magnet is mounted in the magnet mount. The controller includes a control circuit board fixed to one end of the motor bracket proximal to the cylinder magnet. A sensor chip for angle sensing in conjunction with the cylinder magnet is provided on the control circuit board.

Abstract: A distributed cluster training method and an apparatus thereof are provided. The method includes reading a sample set, the sample set including at least one piece of sample data; using the sample data and current weights to substitute into a target model training function for iterative training to obtain a first gradient before receiving a collection instruction, the collection instruction being issued by a scheduling server when a cluster system environment meets a threshold condition; sending the first gradient to an aggregation server if a collection instruction is received, wherein the aggregation server collects each first gradient and calculates second weights; and receiving the second weights sent by the aggregation server to update current weights. The present disclosure reduces an amount of network communications and an impact on switches, and avoids the use of an entire cluster from being affected.

Abstract: A frequency converter adapted to be connected to another frequency converter via a direct current bus is provided. The frequency converter comprises: a positive bus interface adapted to be interconnected with a positive bus interface of the other frequency converter; an external bleeder resistor interface adapted to be interconnected with an external bleeder resistor interface of the other frequency converter; and a first control logic which controls a parallel connection, between the frequency converter and the other frequency converter and realized by a direct current bus, to be turned on or off. A corresponding frequency converter assembly, a control method, and a computer readable storage medium are also provided.

Abstract: System and method for controlling one or more light emitting diodes. For example, the system for controlling one or more light emitting diodes includes a current regulation circuit coupled to a cathode of one or more light emitting diodes. The one or more light emitting diodes include the cathode and an anode configured to receive a rectified voltage. Additionally, the system includes a control circuit coupled to the cathode of the one or more light emitting diodes. The control circuit is configured to receive a first voltage from the cathode of the one or more light emitting diodes, compare a second voltage and a threshold voltage, and generate a control signal based at least in part on the second voltage and the threshold voltage. The second voltage indicates a magnitude of the first voltage.

Abstract: System and method for regulating one or more currents. The system includes a system controller, an inductor, a first resistor, a switch and a first diode. The system controller includes a first controller terminal and a ground terminal, the system controller being configured to output a drive signal at the first controller terminal. The inductor includes a first inductor terminal and a second inductor terminal, the first inductor terminal being coupled to the ground terminal, the second inductor terminal being coupled to one or more light emitting diodes. The first resistor includes a first resistor terminal and a second resistor terminal, the first resistor terminal being coupled to the ground terminal. The switch is configured to receive the drive signal and coupled to the second resistor terminal. The first diode includes a first diode terminal and a second diode terminal and coupled to the first resistor.

Abstract: Disclosed a crop yield prediction method and system based on low-altitude remote sensing information from an unmanned aerial vehicle (UAV). Obtaining a plurality of images taken by the UAV; stitching the plurality of images to obtain a stitched image; performing spectral calibration on the stitched image to obtain the reflectivity of each pixel in the stitched image; using a threshold segmentation method to segment the stitched image, to obtain a target area for crop yield prediction; using a Pearson correlation analysis method to analyze a correlation between the reflectivity of each band and the growth status and yield of the crop to obtain feature bands; constructing yield prediction factors based on the feature bands; and determining a predicted crop yield value of the target area for crop yield prediction based on the yield prediction factors and a crop planting area of the target area for crop yield prediction.