Abstract: The disclosure discloses a method and a device for image stitching, the method including: performing stitching feature extraction on target images based on deep-learning neural-network model to obtain stitching features of the target images; selecting a reference image and a to-be-registered image from the target images; taking the stitching feature of the reference image under a minimum feature size and on the to-be-stitched side as a first stitching feature; calculating the similarity measure value between the first stitching feature and each of second stitching features to obtain a target stitching feature, based on the second stitching features of the to-be-registered image under the minimum feature size; repeating the above steps until the target stitching feature of the to-be-registered image under the maximum feature size is determined, and performing image stitching of the reference image and the to-be-registered image on the to-be-stitched side.

Abstract: Embodiments of this application provide a power consumption reduction method and an electronic device. The method may be applied to the electronic device. The method includes: The electronic device detects a first quantity of junk data packets received within first duration. When determining that the first quantity meets a first relationship, the electronic device disconnects a network connection to a network device, and sends a first network connection request to the network device. The electronic device receives a first paging message sent by the network device in response to the first network connection request. The electronic device re-establishes a network connection to the network device based on the first paging message.

Abstract: An encapsulation substrate and a manufacturing method therefor, and a functional substrate and a manufacturing method therefor are provided. The method for manufacturing an encapsulation substrate includes providing an initial substrate having first and second surfaces oppositely arranged along a thickness direction thereof; processing the initial substrate to form a blind hole extending through a part of the initial substrate in the thickness direction; forming a first connection electrode in the blind hole, and forming a first signal trace on the first surface; thinning the initial substrate from a side of the second surface to form a dielectric substrate and expose the first connection electrode; forming a second signal trace on a side of the dielectric substrate away from the first signal trace such that one of the first and second signal traces is electrically connected to the chip; the other one is electrically connected to the printed circuit board.

Abstract: A multiplexed display panel and device and a driving method for the multiplexed display panel are provided. At the moment when a switching switch is turned on, a potential of a fanout line corresponding to a data line connected to sub-pixels, into which an data signal is input, is adjusted to the same level as a potential of the data line as much as possible, and a potential difference between each fanout line and the corresponding data line is relatively small at the moment when the switching switch is turned on, so that an instantaneous current at this moment is greatly reduced without causing relatively large jump of the potential of the data line, a common electrode and back-plated indium tin oxide (ITO) greatly fluctuate, and then the surface noise generated by the display panel is turned on is greatly reduced.

Abstract: An image processing method is applied to an image display device, the image display device includes a lens having distortion coefficients and a display screen. The image processing method includes: dividing a display region of the display screen into image regions according to the distortion coefficients of the lens, an outer boundary line of each image region enclosing a polygon, a geometric center of the polygon enclosed by the outer boundary line of the image region coinciding with a geometric center of the lens, and distortion coefficients of positions of the lens on which vertexes of the polygon enclosed by the outer boundary line of the image region are mapped being the same; and performing anti-distortion processing on coordinates of vertexes of the image region according to a distortion coefficient corresponding to the vertexes of the image region to obtain texture coordinates of the vertexes of the image region.

Abstract: The present application relates a solar cell, a photovoltaic device and a photovoltaic system. The solar cell includes a substrate, a first passivation layer, and a second passivation layer. The substrate includes a first surface and a second surface opposite to each other along a thickness direction of the substrate. The first passivation layer is disposed on the first surface of the substrate. The second passivation layer is disposed on a side of the first passivation layer away from the substrate. A material of the first passivation layer is the same as that of the second passivation layer. An atomic packing density of the first passivation layer is higher than that of the second passivation layer. An average thickness of the first passivation layer is smaller than that of the second passivation layer.

Abstract: An intelligent test system for traffic load engineering detection of road construction comprises a support part; a sample box part used for containing samples and carrying out a load test in a vertical direction and a direct-shear test in a horizontal direction; a simulated road load applying part used for applying multiple simulated road loads to the samples; a vertical load applying part used for providing multiple loads in the vertical direction for the samples; a horizontal load applying part used for providing loads in the horizontal direction for the sample box part; an automatic sand-compaction part used for quantitatively compacting the samples layer by layer; a water-level fluctuation part used for simulating rising and falling of a tide level; a dry-wet cycle part used for simulating a rain and a sunlight; and an acquisition part used for acquiring data generated during the test.

Abstract: Systems, apparatus, and methods are described for robotic learning and execution of skills. A robotic apparatus can include a memory, a processor, sensors, and one or more movable components (e.g., a manipulating element and/or a transport element). The processor can be operatively coupled to the memory, the movable elements, and the sensors, and configured to obtain information of an environment, including one or more objects located within the environment. In some embodiments, the processor can be configured to learn skills through demonstration, exploration, user inputs, etc. In some embodiments, the processor can be configured to execute skills and/or arbitrate between different behaviors and/or actions. In some embodiments, the processor can be configured to learn an environmental constraint. In some embodiments, the processor can be configured to learn using a general model of a skill.

Abstract: The present disclosure provides a carbide blade cutter head filling device and method, and relates to the field of alloy blade processing. The carbide blade cutter head filling device includes a feeding unit, a storage unit, a loading unit and a discharging unit which are arranged successively. The output end of the feeding unit is matched with the input end of the storage unit through the guide mechanism. The output end of the storage unit faces a conveying tray of the loading unit. The conveying tray is provided with a plurality of group of transition holes for accommodating blades. A receiving mechanism for accommodating a cutter head is arranged below the falling pull plate of the discharging unit. The falling pull plate adjusts the communication and isolation between the transition hole and the cutter head in the receiving mechanism by changing the relative position of the falling pull plate and the transition hole.

Abstract: The present application discloses a quantum circuit optimization method, a device, equipment and a storage medium, which are applied to the technical field of quantum computing and include the steps of: obtaining a quantum circuit to be optimized; determining an optimization unit in the quantum circuit to be optimized, and replacing the optimization unit with a comprehensive expression to obtain a first optimized quantum circuit; the optimization unit corresponding to at least two-bit Pauli operators; replacing the comprehensive expression with an equivalent circuit according to a preset standard and circuits before and after the comprehensive expression to form a second optimized quantum circuit; the second optimized quantum circuit including an eliminable quantum gate; and performing gate elimination on the second optimized quantum circuit to obtain an optimized quantum circuit.

Abstract: Embodiments relate to audio stream and address processing methodologies, which is applicable to exemplary methods and devices including a first terminal device. The first terminal device establishes a connection to the vehicle, and switches a play device of audio streams in a first category and a second category from the first terminal device to the vehicle; and in a process in which the first terminal device and the vehicle are in a connected state, upon detecting that the first terminal device is moved from the inside of the vehicle to the outside of the vehicle, obtains a target category corresponding to the target audio stream being played by the vehicle. The target audio stream is generated by the first terminal device and sent to the vehicle. The vehicle continues to play the target audio stream if the target category is the first category.

Abstract: A track disassembling device comprises a protective housing, a cleaning component and a lifting pin, wherein the protective housing comprises a shell and a supporting plate, the cleaning component is movably sleeved with the protective housing and comprises a cleaning disc, a positioning rod, a connecting disc, a limit disc, a first spring and a first movable block, and the lifting pin is propped against the cleaning disc. A crank structure is formed by fitting with a connecting rod, a locating pin, a second movable block and other structures through the rotation of a turntable, and the second movable block can make reciprocating movement under the limit of the supporting plate to the second movable block; the second movable block making reciprocating movement can exert pressure on the first fixing component to form an impact when the electric telescopic rod extends, achieving separation from the axis pin.

Abstract: A solar cell and a manufacturing method thereof, and a photovoltaic system. The solar cell includes: a substrate layer including a first surface and a second surface arranged oppositely along a thickness direction thereof; a tunnel oxide layer, a first doped polysilicon layer, and a first passivation layer sequentially arranged on the first surface of the substrate layer in a direction gradually away from the substrate layer; and a first finger electrode layer, at least one of the first fingers being arranged in first connection holes, bottoms of the first connection holes being located in the first doped polysilicon layer, and the first fingers passing through the first connection holes corresponding thereto to be electrically connected to the first doped polysilicon layer; and in the first direction, widths of the first connection holes being all less than widths of the first fingers corresponding to the first connection holes.

Abstract: A catalytic cracking catalyst contains 15-50 wt. % of beta zeolite, 10-75 wt. % of clay, and 10-50 wt. % of large-particle-size sol. Its total pore volume is not less than 0.200 mL/g of which more than 60% is attributed to 4-50 nm mesopores. The large-particle-size sol has 10-40 wt. % of Al2O3, 50-85 wt. % of P2O5, and 0.2-10 wt. % of SiO2, and an average particle size of 20 to 50 nm. To prepare the catalyst, an aluminum source and deionized water are mixed to obtain a first slurry; the first slurry and a phosphorus source are mixed to obtain a second slurry; a silica sol is added into the second slurry to obtain a third slurry; the third slurry is subjected to aging treatment to obtain a large-particle-size sol, and the large-particle-size sol is mixed uniformly with clay and beta zeolite to obtain a fourth slurry, which is spray dried and calcined.

Abstract: A method for predicting traffic flow or a travel time, includes: obtaining navigation route data; obtaining, according to the navigation route data, navigation flow of a road within a prediction time period; obtaining real-time traffic flow, a real-time travel time, past traffic flow, and a past travel time of the road; and training a neural network with the real-time travel time, the past travel time, the real-time traffic flow, the past traffic flow, and the navigation flow of the road to obtain predicted traffic flow or a predicted travel time of the road within the prediction time period.

Abstract: A method for preparing nano iron phosphate with low sulfur content. The method may include: S1: mixing a phosphorus source and an iron source to obtain a raw material solution, then adding alkali and a surfactant, adjusting a pH, and stirring and reacting to obtain an iron phosphate dihydrate slurry, S2: adding phosphoric acid solution into the iron phosphate dihydrate slurry, adjusting the pH, heating and stirring for aging, and filtering to obtain iron phosphate dihydrate, S3: adding water into the iron phosphate dihydrate for slurrying, and grinding to obtain a ground slurry; and S4: adding the ground slurry into a washing solution to wash, carrying out solid-liquid separation, and calcining a solid phase to obtain the nano iron phosphate with low sulfur content.

Abstract: The present application relates to a composite resin-based semi-conductive shielding material, prepared from raw materials including following components: 55 to 65 parts by mass of a composite resin, 20 to 30 parts by mass of electrically conductive fillers, and 0.9 to 2 parts by mass of a cross-linking agent, wherein the composite resin is a composite of a low-density polyethylene resin and an ethylene-acrylic acid resin, and the ethylene-acrylic acid resin is at least one of an ethylene-ethyl acrylate resin or an ethylene-butyl acrylate resin.

Abstract: An atmospheric parameter measuring device includes a cone top, a balance rod an upper propeller, a lower propeller, a transmission module, an accelerating module, a DC generator, an object-carrying shell, an inertial generation module, a wireless energy-carrying communication module, a sensor carrier, a base, an airbag and a low-power-consumption sensor. Electric energy can generate by using four methods of wind energy, microwave, inertia and solar energy, so the energy supply for the carried low-power-consumption sensor can be ensured and the measuring device can generate electric energy at day and night to ensure the working state of the carried low-power-consumption sensor and measure the atmospheric temperature, humidity, wind speed, intensity of pressure and cloud and water grain shape parameters at the current position conveniently; the measuring device can float in the air by the lift force provided by the rotation of the two propellers.

Abstract: The invention provides a method for preventing super large-scale floods and debris flows. First, the scale corresponding to certain standard floods in the watershed is evaluated based on field investigations and historical data. Second, the design standards of the system are chosen based on the prevention of super large-scale floods, and the design standard of critical control engineering is further determined. Finally, the design methods of check dams with different functional zones are proposed according to the design standards of critical control engineering. The invention allows part of the key control dam to fail under safe operating conditions of the entire system by increasing the cross-sectional areas and the flow discharges. The unbroken foundation of the dam can effectively control the channel entrainment and regulate the cross-sectional discharge. The design is helpful in mitigating giant floods and debris flows, thus protecting downstream infrastructures.

Abstract: A heat dissipation assembly and a heat dissipator are disclosed. The heat dissipation assembly may include: a base plate bottom; a base plate cover connected to the base plate bottom and forming a heat collection cavity for concentrating heat; a turbulation component provided in the heat collection cavity, the turbulation component comprising at least one turbulation piece; and a plurality of heat dissipation components connected to the base plate cover, wherein the heat dissipation components are provided with at least one heat dissipation pipeline, the heat dissipation pipeline is provided in communication with the heat collection cavity.