Abstract: The present application relates to the technical field of lithium-ion battery and discloses a multi-element cathode material and, a preparation method thereof, and a lithium-ion battery. A surface of the multi-element cathode material includes a dot-like coating and/or an island-like coating. A particle diameter D1 with 1% cumulative particle size distribution of the multi-element cathode material is greater than or equal to 0.7 ?m. An arithmetic average roughness Ra, measured with a three-dimensional scanning electron microscope, of the coating of the multi-element cathode material satisfies 20 nm?Ra?200 nm. A coverage Q of the dot-like coating and/or the island-like coating of the multi-element cathode material satisfies 3%?Q?30%. The surface of the multi-element cathode material contains the dot-like coating and/or the island-like coating, and the coating has specific arithmetic average roughness and coverage.

Abstract: The present invention relates to the technical field of lithium-ion batteries, and discloses a precursor of a lithium-containing oxide cathode material, a lithium-containing oxide cathode material, a preparation method and use thereof, and a positive electrode plate and use thereof. The cathode material has a compressive index ??(P100) satisfying ??(P100)?60%+(y/x)×5%, where y/x is a molar ratio of Mn/Ni in the cathode material. The lithium-containing oxide cathode material has high compressive strength and stability, only a small degree of fracture occurs under high pressure during a preparation process of the electrode plate, and it can be continuously subjected to lithium ion deintercalation/deintercalation reactions without serious rupture.

Abstract: The present invention discloses a boom monitoring method and engineering machinery comprising a boom monitoring system. The method comprises obtaining a boom damage signal monitored in boom operation by a piezoelectric sensing network formed by a plurality of piezoelectric sensors arranged at different points on a boom, and determining a damage position of the boom and a corresponding first boom damage value such that when the first boom damage value reaches a preset starting value of an optical fiber sensing network formed by a plurality of optical fiber sensors arranged at the different monitoring points on the boom, optical wave values of the corresponding monitoring points are obtained and a boom crack signal is determined. A second boom damage value is calculated according to the boom crack signal, which comprises a crack change factor and a crack length. According to the present invention, the boom is monitored with improved efficiency.

Abstract: The disclosure discloses a method, a medium, and a device for enhancing event camera image reconstruction by fusing visible images, and belongs to the field of image processing. In order to solve the problem that the reconstructed image of the event camera is likely affected by noise and lacks of photorealistic, the method provided by the disclosure adopts an enhancement module based on the improved Transformer model to fuse the intensity image reconstructed from the event stream and the reference image selected from the visible image sequence captured by an optical sensor, so that makes the reconstructed image has an appearance close to the visible image while maintaining the characteristics of high dynamic range of the event camera.

Abstract: A crane counterweight block alignment detection and control method, a crane counterweight block alignment detection and control device, and a crane. The crane counterweight block alignment detection and control method comprise: a counterweight block being provided with mounting holes for matching with positioning pins on a crane, detecting the center position of the counterweight block, and calculating the relative offset between the center position and the position of the positioning pins; detecting the relative positions of the mounting holes in the counterweight block and the positioning pins, and calculating, according to the positions, a relative rotation angle of the counterweight block for aligning the mounting holes with the positioning pins; and controlling, according to the relative offset and relative rotation angle, the movement of the counterweight block to enable the mounting holes in the counterweight block to be aligned with and installed onto the positioning pins.

Abstract: A flow distribution control method for a hydraulic system, the hydraulic system comprising N loops L1-LN. The flow distribution control method comprises the following steps: S1: comparing pressures P1-PN at an inlet of an actuator in each loop of the hydraulic system; S2: according to the comparison result, determining a loop Lp1 which requires flow compensation; and S3: conducting flow compensation on the loop Lp1 according to the theoretical flow of the loop Lp1 and an actual flow in the loop Lp1 which flows into the actuator, wherein the number of loops in the loop Lp1 is less than or equal to N. Also disclosed are a flow distribution control device and a flow distribution control apparatus for the hydraulic system, the hydraulic system and a non-transitory computer-readable medium.

Abstract: The present application relates to a stopping method and apparatus for a device with a hoisting mechanism and a crane. The method includes: generating a displacement change rate according to position offset information of a hoisting handle of the device when the position offset information meets a triggering condition; comparing the displacement change rate with a preset threshold to generate a stopping control instruction; and controlling an overhead system of the device to perform deceleration stopping according to the stopping control instruction. The stopping method and apparatus for the device with the hoisting mechanism, the crane, the electronic device and the computer readable medium involved in the present application may achieve the purpose of rapid stopping control only through the hoisting handle of the device, and reduce the requirement for the driver's reaction time and increase the safety of the device when emergency stopping is required.

Abstract: A method for compensating boom deflection comprising: determining a joint angle set of a boom if an end of the boom were to reach a predetermined target position when viewed as a rigid body, wherein the joint angle set comprises an angle of each joint of the boom; determining an actual position that the joint angle set causes the end to reach; determining the deviation between the actual and predetermined target positions; and when the deviation does not satisfy a predetermined condition, continuing to adjust the joint angle set until the deviation satisfies the predetermined condition. The end of the boom can consequently more accurately reach the predetermined target position. The present invention further relates to a method for controlling a boom, an apparatus for compensating boom deflection, an apparatus for controlling a boom, a construction machine, and a computer-readable storage medium.

Abstract: Provided are a depth map generation method, a device and a storage medium, which belong to the technical field of image processing. The method includes: generating, according to a first spherical image acquired by a first fisheye lens and a second spherical image acquired by a second fisheye lens, a first disparity map of a spatial region where a terminal device is located; generating a second disparity map of the spatial region according to depth information of the spatial region acquired by an active depth sensor; and generating a target depth map of the spatial region according to the first disparity map and the second disparity map.

Abstract: A data cable and a charging device are provided. The data cable includes a type-A interface and a type-C interface. The type-A interface and the type-C interface each includes a VBUS pin, a CC pin, a D+ pin, a D- pin, and a GND pin. A circuit identification module is disposed in the data cable, and the circuit identification module includes a switch circuit, a filtering circuit, a voltage regulator circuit, and a comparator circuit. The switch circuit is connected to a CC pin of the type-C interface, an output end of the voltage regulator circuit, a CC pin of the type-A interface, and an output end of the comparator circuit. Under the control of the comparator circuit, the switch circuit connects the CC pin of the type-C interface to the CC pin of the type-A interface or the output end of the voltage regulator circuit.

Abstract: A data cable and a charging device. The data cable includes a Type-A interface, a first interface, and a cable, where a VBUS pin, a D+ pin, a D? pin, and a GND pin in each of the Type-A interface and the first interface are connected in a one-to-one correspondence; and the data cable is provided with a circuit identification module, where the circuit identification module includes a pull-up resistor, a switch circuit, and a filter circuit, a first terminal of the switch circuit is connected to a CC pin of the first interface, a second terminal is connected to a first terminal of the pull-up resistor, a third terminal is connected to a CC pin of the Type-A interface, where under the control of the filter circuit, the first terminal of the switch circuit is connected to the second terminal or the third terminal.

Abstract: The present invention discloses a boom monitoring method and engineering machinery comprising a boom monitoring system. The method comprises obtaining a boom damage signal monitored in boom operation by a piezoelectric sensing network formed by a plurality of piezoelectric sensors arranged at different points on a boom, and determining a damage position of the boom and a corresponding first boom damage value such that when the first boom damage value reaches a preset starting value of an optical fiber sensing network formed by a plurality of optical fiber sensors arranged at the different monitoring points on the boom, optical wave values of the corresponding monitoring points are obtained and a boom crack signal is determined. A second boom damage value is calculated according to the boom crack signal, which comprises a crack change factor and a crack length. According to the present invention, the boom is monitored with improved efficiency.

Abstract: A data line and a charging device are provided. The data line includes a Type-A port, a first port, a cable, and a circuit identification module. VBUS pins, D+ pins, D? pins, and GND pins in the Type-A port and the first port are connected in one-to-one correspondence. The circuit identification module includes a pull-up resistor, a switch circuit, and a detection circuit. A first terminal of the switch circuit is connected to the CC pin of the first port, a second terminal is connected to the VBUS pin through the pull-up resistor, a third terminal is connected to the CC pin of the Type-A port, an input terminal of the detection circuit is connected to the CC pin of the Type-A port, and an output terminal is connected to a control terminal of the switch circuit.

Abstract: A sensor assembly, a force detection device and method, and construction machinery, the sensor assembly comprising a connecting part used for connecting a base to be tested and a bearing part used for bearing, the bearing part being connected to the connecting part, the bearing part comprising at least two sensing units with different measuring ranges, and the at least two sensing units being arranged to have a different initial gap (b1, b2) from the connecting part, so that corresponding initial gap (b1, b2) are eliminated when a load applied to the bearing part reaches different extents. The different initial gaps (b1, b2) are eliminated by means of the load reaching a different extent, so that the sensing units with different measuring ranges can provide detection feedback in the respective working conditions in which the units have the highest measurement precision and thereby ensure the accuracy of detection results.

Abstract: Provided is a temperature-controllable cryoablation system, comprising a catheter, a fluid-conveying unit and a control unit, wherein the catheter comprises a central cavity and a balloon located at the distal end of the catheter, and an input channel allowing a freezing fluid to be input into the balloon and an outflow channel allowing the freezing fluid to flow out of the balloon are provided in the central cavity; the fluid-conveying unit supplies the freezing fluid and discharges the freezing fluid; and the control unit controls the fluid-conveying unit so as to control, according to a target temperature value, the temperature of the balloon to be close to the target temperature value.

Abstract: A crane counterweight block alignment detection and control method, a crane counterweight block alignment detection and control device, and a crane. The crane counterweight block alignment detection and control method comprise: a counterweight block being provided with mounting holes for matching with positioning pins on a crane, detecting the center position of the counterweight block, and calculating the relative offset between the center position and the position of the positioning pins; detecting the relative positions of the mounting holes in the counterweight block and the positioning pins, and calculating, according to the positions, a relative rotation angle of the counterweight block for aligning the mounting holes with the positioning pins; and controlling, according to the relative offset and relative rotation angle, the movement of the counterweight block to enable the mounting holes in the counterweight block to be aligned with and installed onto the positioning pins.

Abstract: The present invention relates to the field of molecular biology and more particularly to promoters useful for metabolic engineering in yeast or fungi for the production of biobased chemicals with broad applications. Intron-containing promoters with strong activity during oil-accumulation stages are particularly useful for genetic engineering in yeast and fungi, particularly Rhodosporidium or Rhodotorula genera. Such promoter are capable of driving strong expression of RNA or proteins in species of the Rhodosporidium or Rhodotorula genera.

Abstract: The present invention relates to the field of fungal production fatty alcohols. More specifically, the present invention relates to genetically modified host cells, nucleic acid constructs and culture medium for the production of fatty alcohols in Rhodosporidium.

Abstract: A data storage and retrieval system for a computer memory includes a stream graph engine extracting graph data from streaming data, the graph data occupying a sliding window and comprising a plurality of slices representing a set of contiguous graphs, and where each slice of the plurality of slices corresponds to a given graph structure and its properties at a particular time, the stream graph engine causing the computer memory to store an on-disk portion of the graph data including a key table, a timestamp table and a plurality of property files, wherein the key table comprises a plurality of pointers to corresponding entries of the timestamp table, wherein each of the entries of the timestamp table comprise a corresponding timestamp and a pointer to the properties files, wherein the properties files comprise properties of a corresponding graph of the set of contiguous graphs, an in-memory portion of the graph data having a cache data structure storing a subset of the key table, and a versioning control modu

Abstract: The present disclosure provides a charger charging circuit, a mobile terminal charging circuit, a charger and a mobile terminal. The charger charging circuit includes: a voltage conversion circuit configured to convert an alternating current into a direct current and be connected with an alternating current charging power supply; a first charging interface configured to be connected with a second charging interface of a mobile terminal, where the first charging interface includes a voltage output end coupled with the voltage conversion circuit and a plurality of first data transmission ends; and a first control circuit. An end of the first control circuit is coupled with the voltage conversion circuit; and another end of the first control circuit is coupled with at least one of the first data transmission ends.