Abstract: The invention provides a targeted recycling method for waste battery, which comprises the following steps: the positive electrode strip of the waste battery is broken to obtain the broken product; In a carbon monoxide atmosphere, the broken product is pyrolyzed to obtain the pyrolysis product, and then the pyrolysis product is magnetically separated to obtain the magnetic separation product to achieve valuable metal recovery; The pyrolysis gas of the pyrolysis is passed into an alkaline solution to obtain a Li-rich solution and realize Li recovery.

Abstract: This application relates to a data storage method, a reading method, an apparatus, a storage medium, and a program product. The data storage method is applied to a processor and includes: (S1) obtaining event data; (S2) processing the event data, to obtain a plurality of data blocks and a plurality of corresponding metadata blocks, where each data block includes a part of processed event data, and each metadata block includes a start time, an end time, a quantity, and a compression manner of event data in a data block corresponding to the metadata block, and a storage address of the data block; and (S3) storing the plurality of data blocks into a first storage area, and storing the plurality of metadata blocks into a second storage area.

Abstract: A fully-distributed reactive voltage control method, includes: establishing a power grid reactive voltage optimization model of a power grid; parting the power grid reactive voltage optimization model into a plurality of area reactive voltage optimization models of a plurality of areas of the power grid; converting a power flow equation constraint in each of the plurality of area reactive voltage optimization models to a linear regression model; solving the linear regression model by using a robust recursive regression algorithm to obtain a solution result of the linear regression model; solving each of the plurality of area reactive voltage optimization models by using the solution result of the linear regression model, a gradient projection algorithm, and an alternating direction multiplier algorithm, so as to realize a reactive voltage optimization control of each of the plurality of areas.

Abstract: This application discloses a data writing method. A network controller performs erasure code encoding on original data, and writes a third quantity of target data blocks of a plurality of obtained target data blocks into a storage node. The network controller reads a first quantity of target data blocks of the third quantity of the target data blocks from the storage node, and decodes the read target data blocks. The plurality of target data blocks include a first quantity of original data blocks and a second quantity of check data blocks, two ends of a target data block include same version information, and the third quantity is greater than the first quantity.

Abstract: Provided is a self-cooling device sealed with a magnetic liquid, related to the field of mechanical engineering sealing technology. The device includes: a tank body, a pole-tooth, a rotary shaft, a magnetic liquid, a first gasket ring, a second gasket ring, a first pole-shoe, a permanent magnet, a third gasket ring, a second pole-shoe, a fourth gasket ring, a fan, a bolt, an end cover, a second U-shape soaking rod, and a first U-shape soaking rod.

Abstract: Disclosed are a power transmission line monitoring system and a power transmission line monitoring method. The monitoring method comprises: acquiring, by means of a functional node, monitoring data related to a power transmission line, and transmitting the monitoring data to an edge node; and receiving the monitoring data by means of the edge node, transmitting the monitoring data to a collection node by means of an edge node chain type communication network, and sending, by the collection node, the data to a master station server. In the application, a self-organized edge node chain type network is formed by means of edge nodes, and data transmission is performed by means of the edge node chain type network, so that problem of poor data transmission caused by impossible coverage of a cellular network can be solved.

Abstract: This application provides an event data processing method, including: obtaining event data shot by an event camera, where the event data includes a timestamp of occurrence of an event, pixel coordinates, and a brightness change status; and generating an event frame matrix based on a plurality of pieces of event data within a preset time period, where a location of a matrix element in the event frame matrix corresponds to pixel coordinates, a value of the matrix element indicates whether there is an event at a corresponding pixel and an event polarity of a pixel with an event, if there is an event at the pixel, it indicates that brightness of the pixel is changed within the preset time period, or if there is no event at the pixel, it indicates that brightness of the pixel is not changed, and the event polarity includes increased brightness and decreased brightness.

Abstract: A 2D image-guided surgical robot system for distal locking operations includes surgical image acquisition equipment, a robot arm, a robot end effector attached to the robot arm, and a remote operation workstation. To perform a distal locking operation, the position of the image acquisition device is adjusted to obtain a round outline of a lockhole in the image. A distortion correction is performed. The position of the target lockhole is assigned by a user through the GUI of the remote operation workstation, and the remote operation workstation calculates a robot motion quantity using image feedback control law and moves the robot accordingly. The “image-and-move” procedure is repeated several times until the drill guide is accurately aligned to the lockhole, then the distal locking operation is accomplished by first drilling a guide hole using a guide wire through the drill guide, and then screwing a locking screw through the guide hole.

Abstract: A data processing method based on a memristor array and an electronic apparatus are disclosed. The data processing method based on a memristor array includes: acquiring a plurality of first analog signals; setting the memristor array, and writing data corresponding to a convolution parameter matrix of a convolution processing into the memristor array; inputting the plurality of first analog signals respectively into a plurality of column signal input terminals of the memristor array that has been set, controlling operation of the memristor array to perform the convolution processing on the plurality of first analog signals, and obtaining a plurality of second analog signals after performing the convolution processing at a plurality of row signal output terminals of the memristor array, respectively.

Abstract: The present invention relates to a carbon nanotube-transition metal oxide composite and a method for making the composite. The composite comprises at least one carbon nanotube and a plurality of transition metal oxide nanoparticles. The plurality of transition metal oxide nanoparticles are chemically bonded to the at least one carbon nanotube through carbon-oxygen-metal (C—O-M) linkages, wherein the metal is a transition metal element. The method for making the composite comprising the following steps: step 1, providing at least one carbon nanotube obtained from a super-aligned carbon nanotube array; step 2, pre-oxidizing the at least one carbon nanotube; step 3, dispersing the at least one carbon nanotube in a solvent to form a first suspension; step 4, dispersing a material containing transition metal oxyacid radicals in the first suspension to form a second suspension; and step 5, removing the solvent from the second suspension and drying the second suspension.

Abstract: The present disclosure provides sound source identification based on array measurement and sparse prior information, which uses a generalized minimax concave penalty function to apply a sparse constraint on a sound source reconstruction error, determines position information of a potential sound source according to a basic sound image generated by a conventional beamforming method, and generates an initial solution vector including a sound source position prior information in a specific way. Compared with using a random initial value and a zero initial value, computational efficiency of the disclosed sound field reconstruction method is improved. Further, an iterative convergence speed is improved by using a proximal gradient acceleration and an adaptive step size backtracking strategy, an optimal step size that can meet convergence is adaptively selected, and sound field reconstruction can be completed more quickly.

Abstract: The present disclosure relates to the field of lighting adjustment technologies, and in particular to a lighting adjustment system and method. The system includes: a light sensor, a personnel controller, a central processing unit, and a lighting device, where the light sensor, the personnel controller, and the lighting device are all wirelessly connected to the central processing unit; the light sensor is arranged at a preset monitoring point, and configured to receive monitoring information at the monitoring point; the personnel controller is configured to obtain a lighting environment creation selection of control personnel; the central processing unit is configured to regulate beam angle, color temperature, and illuminance of the lighting device in real time based on the received monitoring information and the lighting environment creation selection; and the lighting device is arranged at the monitoring point preset indoors.

Abstract: A method and apparatus for optimizing operation simulation of a data center are disclosed, and the method includes: constructing a data center simulation model; acquiring a state data set and an action data set of the data center; inputting the state data set and the action data set into a first state prediction model to obtain a next state data set; judging whether the next state data set meets a state safe judgment condition; if so, inputting the state data set and the action data set into a second state prediction model to obtain a next state data set; optimizing network parameters of a reinforcement learning algorithm; and determining an action data set corresponding to a real-time state data set of the data center by using the trained reinforcement learning algorithm.

Abstract: A high-resolution phase detection method and system based on a plane grating laser interferometer. The method uses a dual-frequency interferometer to measure the displacement, and the measurement signal processing comprises an integral part and a decimal portion, a phase equation set of a displacement measurement signal is constructed according to a measurement optical path principle of a heterodyne plane grating laser interferometer; a non-linear equation set for which the unknowns are instantaneous phase, interval phase and signal amplitude is established; and the equation sets above are solved by using the least squares method, so as to realize phase discrimination, thereby realizing precise displacement measurement. The method can solve the problems in the traditional time measurement-based phase detection technology, such as low measurement accuracy, and failing to satisfy small measuring range measurement.

Abstract: A data-driven wind farm frequency control method based on dynamic mode decomposition. The method enables a low-dimension nonlinear dynamic feature of a wind power system to perform global capturing in a high-dimension space through a state transition matrix given by a Koopman operator theory, thus fewer data samples are necessary while control requirements are satisfied with respect to a model fitting accuracy. Meanwhile, a pure linear feature of a control model also provides a favorable foundation for fast on-line dynamic response, thereby satisfying response accuracy and speed requirements simultaneously in an actual control step.

Abstract: A multi-stage micro-decomposition swirl burner with an ammonia-doped fuel, and a low NOx control method are provided. A natural gas central pipe, a primary air pipe and a burner housing are nested from inside to outside in sequence to form a primary air duct and an over-fire air channel which are isolated from each other. Natural gas is ejected from the natural gas central pipe, and swirl vanes are arranged in the primary air duct, such that the primary air can be mixed with the central natural gas in a swirl state, and then a diffusion flame is formed under the action of an ignition device. Therefore, a pilot flame with sustainable combustion is formed at the center of an injection end of the burner.

Abstract: The present application provides a day-ahead scheduling method and apparatus for a power system, an electronic device, and a storage medium, where the method includes: obtaining power system prediction parameters in a to-be-scheduled time period, where the power system prediction parameters include thermal power unit parameters, renewable energy station parameters, load parameters, energy storage station (ESS) parameters, node parameters, a transmission line parameter and other power gird parameters; constructing a day-ahead scheduling optimization model and generating multiple renewable energy power scenarios based on the power system prediction parameters; solving the day-ahead scheduling optimization model to obtain day-ahead scheduling results; verifying the day-ahead scheduling results based on the power system prediction parameters and the multiple renewable energy power scenarios; and in case that the verifying the day-ahead scheduling results successes, outputting the day-ahead scheduling results.

Abstract: Provided are a CT scanning method and system, an electronic device, and a computer-readable storage medium. The method includes: determining a first coordinate of a mark point of a part to be imaged in a dual-camera coordinate system; converting the first coordinate into a second coordinate of the mark point in a CT coordinate system according to coordinate system transformation parameters; generating first locating information according to the second coordinate to drive a scanning table to move to a first location designated by the first locating information; obtaining projection images of the part to be scanned; determining second locating information and scanning information of the part to be scanned according to the projection images; and driving the scanning table to move to a second location designated by the second locating information according to the second locating information and performing CT scanning according to the scanning information.

Abstract: The present disclosure discloses an organic electroluminescent device and a preparation method thereof. The device includes a light-emitting layer, the light-emitting layer includes a host material, an auxiliary host material and a fluorescent dye; the host material is an exciplex prepared by mixing an electron donor material and an electron acceptor material, the auxiliary host material is a thermally activated delayed fluorescence material, a singlet energy level and a triplet energy level of the exciplex are higher than the single energy level and triplet energy level of the auxiliary host material. The above organic electroluminescent device can promote the reverse intersystem crossing of the host material and the auxiliary host material from the triplet excitons to the singlet excitons, enhance the Foster energy transfer, reduce the triplet exciton quenching, therefore the efficiency roll-off of the device is small and the external quantum efficiency is high.

Abstract: The present application provides an electrolytic solution for rechargeable magnesium batteries, a method for preparing the same, and a rechargeable magnesium battery, wherein the electrolytic solution comprises an electrolyte salt and a non-aqueous solvent, the electrolyte salt comprising [MgxM2x-1Py][Mg(ORF)3Qz], in which x represents an integer between 1 and 6, y represents an integer between 1 and 6, z represents an integer between 0 and 6, M represents a monovalent anion, and each RF independently represents partially fluorinated or perfluorinated C1-C6 aliphatic hydrocarbon group, or partially fluorinated or perfluorinated C6-C12 aromatic hydrocarbon group, and P and Q represent an ligand. The electrolytic solution provided by the present application has excellent electrochemical properties, and at the same time the interfacial stability between the electrolytic solution and the negative electrode is also high.