Abstract: A platinum catalyst recycling device with multiple filtration structures is provided. The device includes a support base, a recycling housing, and a crushing housing. A top of the support base is fixedly connected to the recycling housing, a top surface of the recycling housing is fixedly connected to the crushing housing, and a feed port is provided on a top surface of the crushing housing. A feed tube is installed at the feed port of the crushing housing, and a crushing roller assembly is installed in an inner cavity of the crushing housing. The crushing roller assembly is disposed in an inner cavity of a crushing chamber, and the crushing chamber is fixedly connected to a sidewall of the inner cavity of the crushing housing. A bottom of the crushing chamber is fixedly connected to a guide plate. Uniform plates are disposed below the guide plate.

Abstract: A dongle device and a firmware updating method are provided. The dongle device includes a connector, a communication module, a storage module, and a control module. The storage module is configured to store a device ID and a first image file. The control module is electrically connected to the connector, the communication module, and the storage module. The control module is configured to output an updating command to an electronic device through the connector, control the communication module to scan and to wirelessly receive a broadcast packet broadcasted by the electronic device, control the communication module to establish a wireless connection between the dongle device and the electronic device according to the broadcast packet, and use the first image file to update a firmware of the electronic device via the wireless connection. The updating command and the broadcast packet have the same device ID.

Abstract: A platinum catalyst recycling device with multiple filtration structures is provided. The device includes a support base, a recycling housing, and a crushing housing. A top of the support base is fixedly connected to the recycling housing, a top surface of the recycling housing is fixedly connected to the crushing housing, and a feed port is provided on a top surface of the crushing housing. A feed tube is installed at the feed port of the crushing housing, and a crushing roller assembly is installed in an inner cavity of the crushing housing. The crushing roller assembly is disposed in an inner cavity of a crushing chamber, and the crushing chamber is fixedly connected to a sidewall of the inner cavity of the crushing housing. A bottom of the crushing chamber is fixedly connected to a guide plate. Uniform plates are disposed below the guide plate.

Abstract: A data processing method, device, and storage medium that reads a parallel control code; reads, according to the parallel control code, first data that has been cached in a data cache space, processes the read first data, and outputs the processed first data to the data cache space; and simultaneously moves second data from a data storage space to the data cache space according to the parallel control code, the second data being the next data of the first data. Data processing and data moving are performed simultaneously according to the parallel control code, to reduce a duration of the data processing waiting for the data moving, thereby improving a processing speed and processing efficiency.

Abstract: Disclosed is a method for manufacturing a 5Ni steel plate with a low remanence and an excellent surface quality to be used in a ship. The process flow thereof comprises: converter smelting?LF refining?RH high vacuum degassing?treatment with Ca?continuous casting?a slow cooling treatment to the slab?cleaning the surface of the slab?heating?rolling?quenching twice?tempering. The constituents comprise a low content of carbon, a low content of silicon, and 5% Ni, with V and Nb being added thereto, which improves the hardenability, improves the toughness at a low temperature, and improves the starting temperature of non-recrystallization of austenite. The steel plate can be subjected to high-temperature rolling and high-temperature quenching so as to significantly improve the shape of the plate, thus being applicable to the production of thin products.

Abstract: The present disclosure provides an automatic chuck apparatus comprising a mechanical chuck, a mechanical chuck mounting bracket, a hydraulic motor, a lifting mechanism, a chuck key and a lifting cylinder. The mechanical chuck is mounted above the mechanical chuck mounting bracket. The hydraulic motor, the lifting mechanism and the lifting cylinder are mounted below the mechanical chuck mounting bracket. The hydraulic motor is configured to control the rotation of the chuck key, the lifting cylinder is configured to drive the chuck key to ascend or descend through the lifting mechanism, thereby the mechanical chuck is locked or loosened by the chuck key. The present disclosure further provides a grinding wheel cutting apparatus and a cutting method. In the present disclosure, the locking of the chuck is automatically controlled, thereby improving the working efficiency and ensuring sufficient locking force of the chuck.

Abstract: The present disclosure provides a grinding wheel apparatus comprising a grinding wheel, a flange, a pull rod and a spindle. The grinding wheel is mounted on one side of the flange, and the other side of the flange is a tapered bucket, the tapered bucket has a buckle slot. The pull rod passes through the spindle, and a pull rod head of the pull rod is fixed to one end of the spindle, the tapered bucket is inserted into the spindle from the other end of the spindle, and the buckle slot is engaged with the T-shaped buckle of the pull rod in the spindle to fix the flange on which the grinding wheel is mounted to the other end of the spindle. The present disclosure further provides a grinding wheel cutting apparatus comprising the grinding wheel apparatus, and a cutting method using the grinding wheel cutting apparatus.

Abstract: Disclosed is a method for manufacturing a 5Ni steel plate with a low remanence and an excellent surface quality to be used in a ship. The process flow thereof comprises: converter smelting->LF refining->RH high vacuum degassing->treatment with Ca->continuous casting->a slow cooling treatment to the slab->cleaning the surface of the slab->heating->rolling->quenching twice->tempering. The constituents comprise a low content of carbon, a low content of silicon, and 5% Ni, with V and Nb being added thereto, which improves the hardenability, improves the toughness at a low temperature, and improves the starting temperature of non-recrystallization of austenite. The steel plate can be subjected to high-temperature rolling and high-temperature quenching so as to significantly improve the shape of the plate, thus being applicable to the production of thin products.

Abstract: The present disclosure relates to a spheroidizing-annealed steel for the ball screw having high strength and resistance to low temperatures, wherein the chemical composition of the steel in mass percentage is: C: 0.40-0.70%, Si: 1.20-1.80%, Mn: 1.00-1.60%, Cr: 0.80-1.20%, S: ?0.025%, P?0.025%, Ni: 0.10-0.60%, Cu: 0.30-0.80%, Mo: 0.10-0.40%, Al?0.05%, Ca?0.0010%, Ti?0.003%, O?0.0010%, As?0.04%, Sn?0.03%, Sb?0.005%, Pb?0.002%, the balance is Fe and unavoidable impurities. In microstructure of the steel, cementite exists in a spheroidized state with a diameter of 0.1-0.5 ?m, preferably 0.3-0.5 ?m, a spheroidizing rate is 95% or more, and the rest is ferrite.

Abstract: The present disclosure provides a grinding wheel cutting apparatus comprising a first laser distance sensor, a master controller and a grinding wheel. The first laser distance sensor is communicatively coupled to the master controller. The laser distance sensor is configured to obtain an outer diameter of a rod workpiece. The master controller is configured to determine a segment length of a segment to be cut from the rod workpiece based on the outer diameter, a material density of the rod workpiece and a preset segment weight. The master controller is configured to perform a control to circularly cut the rod workpiece with the grinding wheel according to the segment length. The present disclosure further relates to a cutting method using the grinding wheel cutting apparatus.

Abstract: A data processing method and apparatus, and a readable medium and an electronic device are provided. The method includes: collecting a facial image of a user by means of a terminal, and taking the collected facial image as a first facial image, displaying the first facial image in a user display area of a terminal screen; where the terminal screen displays a target object, collecting a sound signal of the user, and taking the collected sound signal as a target sound signal; and if the sound intensity of the target sound signal is within a first intensity range, switching a display state of the target object, and switching the first facial image in the user display area to a second facial image, wherein the second facial image is obtained on the basis of the first facial image.

Abstract: A data processing method and apparatus, and a readable medium and an electronic device are provided. The method includes: collecting a facial image of a user by means of a terminal, and taking the collected facial image as a first facial image, displaying the first facial image in a user display area of a terminal screen; where the terminal screen displays a target object, collecting a sound signal of the user, and taking the collected sound signal as a target sound signal; and if the sound intensity of the target sound signal is within a first intensity range, switching a display state of the target object, and switching the first facial image in the user display area to a second facial image, wherein the second facial image is obtained on the basis of the first facial image.

Abstract: A method, applied to a neural network model computing chip, includes: obtaining a current instruction from a mixed instruction set including N instructions and obtained through pre-compiling based on model data of a target neural network model, the N instructions including an original instruction and control information for updating a target original instruction of the target neural network model; determining a target instruction based on the current instruction, where when the current instruction is control information, the target instruction is an update instruction obtained after the target original instruction is updated based on the control information; and parsing the target instruction, and scheduling a target engine based on a parsing result to perform a computing operation or a data migration operation indicated by the target instruction, the target engine being one of a plurality of pre-configured engines in the neural network model computing chip.

Abstract: The present disclosure describes methods, devices, and storage mediums for adjusting computing resource. The method includes obtaining an expected pooling time of a target pooling layer and a to-be-processed data volume of the target pooling layer; obtaining a current clock frequency corresponding to at least one computing resource unit used for pooling; determining a target clock frequency according to the expected pooling time of the target pooling layer and the to-be-processed data volume of the target pooling layer; and in response to that the convolution layer associated with the target pooling layer completes convolution and the current clock frequency is different from the target clock frequency, switching the current clock frequency of the at least one computing resource unit to the target clock frequency, and performing pooling in the target pooling layer based on the at least one computing resource unit having the target clock frequency.

Abstract: An arc fault detection method for a photovoltaic system based on an adaptive kernel function and instantaneous frequency estimation includes steps of: sampling signal xt in a time window length of TNCT and obtaining an iterative time-frequency diagram of xt by nonlinear chirplet transform; extracting detection variables based on frequency component in the selected iterative time-frequency diagram to determine a moment when spectrum energy increases; when the moment is found, obtaining a matrix distribution form of the xt in time-frequency domain obtained by the adaptive optimum kernel time-frequency representation, and processing the matrix with sum of squares in a time dimension to obtain a column vector; processing each selected frequency bands with integration operation in a frequency dimension to obtain multiple detection variable values as inputs of a well-trained Naive Bayes model.

Abstract: The present disclosure provides an automatic chuck apparatus comprising a mechanical chuck, a mechanical chuck mounting bracket, a hydraulic motor, a lifting mechanism, a chuck key and a lifting cylinder. The mechanical chuck is mounted above the mechanical chuck mounting bracket. The hydraulic motor, the lifting mechanism and the lifting cylinder are mounted below the mechanical chuck mounting bracket. The hydraulic motor is configured to control the rotation of the chuck key, the lifting cylinder is configured to drive the chuck key to ascend or descend through the lifting mechanism, thereby the mechanical chuck is locked or loosened by the chuck key. The present disclosure further provides a grinding wheel cutting apparatus and a cutting method. In the present disclosure, the locking of the chuck is automatically controlled, thereby improving the working efficiency and ensuring sufficient locking force of the chuck.

Abstract: The present disclosure provides a grinding wheel apparatus comprising a grinding wheel, a flange, a pull rod and a spindle. The grinding wheel is mounted on one side of the flange, and the other side of the flange is a tapered bucket, the tapered bucket has a buckle slot. The pull rod passes through the spindle, and a pull rod head of the pull rod is fixed to one end of the spindle, the tapered bucket is inserted into the spindle from the other end of the spindle, and the buckle slot is engaged with the T-shaped buckle of the pull rod in the spindle to fix the flange on which the grinding wheel is mounted to the other end of the spindle. The present disclosure further provides a grinding wheel cutting apparatus comprising the grinding wheel apparatus, and a cutting method using the grinding wheel cutting apparatus.

Abstract: The present disclosure provides a grinding wheel cutting apparatus comprising a first laser distance sensor, a master controller and a grinding wheel. The first laser distance sensor is communicatively coupled to the master controller. The laser distance sensor is configured to obtain an outer diameter of a rod workpiece. The master controller is configured to determine a segment length of a segment to be cut from the rod workpiece based on the outer diameter, a material density of the rod workpiece and a preset segment weight. The master controller is configured to perform a control to circularly cut the rod workpiece with the grinding wheel according to the segment length. The present disclosure further relates to a cutting method using the grinding wheel cutting apparatus.

Abstract: An artificial intelligence accelerator, a device, a chip, and a data processing method are provided. The artificial intelligence accelerator has a capability to respectively process data with a depth of a second quantity in parallel by using a first quantity of operation functions, and includes a control unit, a computing engine, a group control unit, and a group cache unit. The control unit is configured to parse a processing instruction for a target network layer in a neural network model to obtain a concurrent instruction, the computing engine is configured to perform parallel processing on a target input tile in the input data set according to the concurrent instruction to obtain target output data corresponding to the target input tile, and the group control unit is configured to store, by group, the target output data into at least one output cache of the group cache unit.

Abstract: A data processing method, device, and storage medium that reads a parallel control code; reads, according to the parallel control code, first data that has been cached in a data cache space, processes the read first data, and outputs the processed first data to the data cache space; and simultaneously moves second data from a data storage space to the data cache space according to the parallel control code, the second data being the next data of the first data. Data processing and data moving are performed simultaneously according to the parallel control code, to reduce a duration of the data processing waiting for the data moving, thereby improving a processing speed and processing efficiency.