Abstract: A five-axis linkage synchronous tool path interpolation method and system, which utilizes the strict proportional coefficient relationship between points, control points and parameters on the first-order derivative curve of the spline curve, more accurate tool axis path curve interpolation points from the parameters of the tool tip path curve are calculated. There is no need to calculate the tool axis path curve interpolation points according to interval synchronization. It is not affected by the shape consistency of the tool tip path curve and the tool axis path curve.

Abstract: A tool with a transmission assembly having a reduction gearset and a speed selector. The speed selector has a member, an actuator and a shifter assembly. The member is movable between a first position, in which the member is non-rotatable, and a second position in which the member is coupled to a planet carrier of the reduction gearset for common rotation. The actuator includes a pivoting yoke and a follower that is coupled to the yoke. The follower engages the member so as to be axially movable with the follower. The shifter assembly has a selector switch, a switch fork, and a pair of springs. The selector switch is slidable between a first switch position and a second switch position. The switch fork is slidably coupled to the selector switch and receives the yoke. The springs cooperate to bias the switch fork relative to the selector switch into a neutral position.

Abstract: A paper forming mold, comprising a roller (1). A number of through micropores are formed on a wall of the roller (1), and one or more patterns and characters of a normal watermark, a white watermark, a windowed security thread, and a paper marker are carved on the wall of the roller (1). The paper forming mold has a high reproducibility for an original watermark design draft, improves consistency, clarity, three-dimensionality, detail refinement and richness of the watermark in paper, and thus enhances the anti-counterfeiting function of the watermarked paper; the service life of the paper forming mold is prolonged; and the automation level of paper forming mold manufacturing is improved, and the labor intensity is greatly reduced.

Abstract: A traffic lane line fitting method includes: obtaining map information for a current position of a vehicle, the map information comprising a number of traffic lanes, a road width and line point information of traffic lane lines on both sides of the vehicle; determining, from among the traffic lane lines on both sides of the vehicle, a traffic lane line on one side, consistent with the direction indicated by at least one of the following, to be a traffic lane line offset reference used for traffic lane line fitting; offsetting and generating a plurality of traffic lane lines of the vehicle on the basis of the traffic lane line offset reference; performing curve fitting on a set of line points on the generated plurality of traffic lane lines so as to obtain a corresponding traffic lane line equation.

Abstract: A method, computer program product, and computing system for defining one or more user data portions and at least two reserved portions of a solid-state drive (SSD). An operating mode of the SSD may be determined. One or more of the at least two reserved portions of the SSD may be utilized based upon, at least in part, the operating mode of the SSD.

Abstract: The disclosure provides a display apparatus and a driving method. The display apparatus includes: a display panel, where the display panel includes a plurality of pixel islands arranged in arrays in a row direction and a column direction, and each pixel island includes n sub-pixels arranged at intervals in the row direction, where n is greater than 1; and a light-splitting component at a display side of the display panel, where the light-splitting component includes a plurality of light-splitting repeating units extending in the column direction and continuously arranged in the row direction, the light-splitting repeating unit includes M light-splitting structures extending in the column direction and continuously arranged in the row direction, each light-splitting repeating unit correspondingly covers K columns of pixel islands, both M and K are integers greater than 1, and M and K are prime to each other.

Abstract: A linear motor motion control method, device, equipment and storage medium. The proposed invention uses an extended state observer constructed in advance based on the model parameters of the linear motor, and performs state estimation based on the total control amount of the linear motor and the actual displacement signal to obtain each observation signal. The phase advance controller is used to improve the estimated lag of the disturbance observation signal, and a model prediction controller built in advance based on the mathematical model of the linear motor is used to perform rolling optimization based on each observation signal to obtain the optimal control amount increment; The total control amount is updated based on the improved disturbance observation signal and the optimal control amount increment, and the corresponding drive signal is output to the drive end of the linear motor based on the updated total control amount.

Abstract: A kinematics-free hand-eye calibration method comprises: controlling translation axes of a five-axis motion platform to perform a single-axis point location motion, using a camera to obtain a first spatial coordinate of a calibration plate, fitting all first spatial coordinates into a spatial straight line to obtain a unit direction vectors of the spatial straight line, carrying out Schmidt orthogonalization on the unit direction vectors of the spatial straight lines of an X direction, a Y direction and a Z direction to obtain a pose relationship matrix combined by the orthogonalized direction vectors; obtaining a second spatial coordinate of the calibration plate in a mode of rotating an X-axis and a C-axis, fitting all second spatial coordinates into a spatial spherical surface, calculating a spherical center coordinate to obtain a position relationship matrix, and obtaining a hand-eye relationship matrix combined by the pose relationship matrix and the position relationship matrix.

Abstract: A five-axis linkage synchronous tool path interpolation method and system, which utilizes the strict proportional coefficient relationship between points, control points and parameters on the first-order derivative curve of the spline curve, more accurate tool axis path curve interpolation points from the parameters of the tool tip path curve are calculated. There is no need to calculate the tool axis path curve interpolation points according to interval synchronization. It is not affected by the shape consistency of the tool tip path curve and the tool axis path curve.

Abstract: A technique manages a computing system based on a client/server architecture. In particular, an address mapping of a storage system is managed. The address mapping includes an association between storage spaces in a plurality of storage devices in the storage system and a user of the storage system. A data access service is provided to a client associated with the user based on the address mapping. The client includes at least any one of a user data client for accessing user data associated with the user in the storage system and a control data client for accessing control data associated with the user. Based on a client/server architecture, a uniform management mode is provided for user data and control data, so that the storage system is managed more simply and effectively.

Abstract: A voice coil motor direct-driven active vibration isolation and leveling integrated platform. The voice coil motor direct-drive active vibration isolation and leveling integrated platform includes a moving platform, a base, a driving mechanism and a vibration isolation and leveling composite mechanism; the moving platform is rotatably disposed on the base around the X-axis and the Y-axis through the vibration isolation and leveling composite mechanism; the driving mechanism is used to drive the moving platform to perform leveling movement, and the force exerted by the driving mechanism on the moving platform is distributed symmetrically around the circumference of the moving platform.

Abstract: A three-dimensional measurement method combines the three-step phase shift method to embed the marker line information into the sinusoidal stripe pattern to obtain the target stripe pattern. The target stripe pattern is projected onto the surface of the object to be measured, and the wrapped phase image, mean intensity image and modulated intensity image of the stripe pattern collected by the left and right cameras are solved. The mask image according to the mean intensity image and modulation intensity image is solved to extract the marker line. The spatial phase unwrapping starting from the marker line in the wrapped phase image is performed to obtain the spatial phase. The spatial phase matching based on the unique correspondence between the left and right cameras based on the spatial phase of the marker line is performed, the best matching point of the right camera is obtained.

Abstract: A polypeptide compound having a structure shown in formula I, or a stereoisomer, mixture or pharmaceutically acceptable salt thereof Experimental results show that the polypeptide compound can effectively exhibit high agonistic activity to GHSR-1a.

Abstract: A rechargeable energy storage system (RESS) including a thermal runaway propagation (TRP) mitigation system includes a housing including at least one outlet, a plurality of energy storage cells arranged in the housing, and at least one duct extending along the plurality of energy storage cells. The at least one duct is fluidically connected to the at least one outlet. A gas delivery system is arranged at the housing and includes a gas storage canister operable to deliver an amount of gas into the housing to purge combustible gases through the at least one outlet.

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: A rechargeable energy storage system (RES S) including a thermal runaway propagation (TRP) mitigation system includes a housing having at least one outlet, a plurality of energy storage cells arranged in the housing, and at least one duct extending along the plurality of energy storage cells. The at least one duct is fluidically connected to the at least one outlet. A gas delivery system including a gas generation system is operable to deliver an amount of inert gas into the housing to purge gases from one or more of the plurality of energy storage cells through the at least one outlet.

Abstract: A dimensionless kinematics calibration method based on a virtual point and a related apparatus thereof. The method comprises: establishing a kinematics model of a motion mechanism, and arranging a plurality of virtual points at a tail end of the motion mechanism to establish a dimensionless kinematics model and a dimensionless error model; converting a measurement coordinate system into a motion mechanism coordinate system, acquiring a rotation matrix and a translation matrix of a target virtual point measured by the measurement device, and calculating actual coordinates of all virtual points to obtain a measured value of the dimensionless kinematics model; calculating a theoretical value of the dimensionless kinematics model according to a spatial relationship between a reflecting head and the tail end of the motion mechanism; and optimizing the dimensionless error model according to the measured value and the theoretical value to obtain a calibration result.

Abstract: The present disclosure provides a screen detection method, an apparatus and a device, a computer program and a readable medium, and belongs to the technical field of screens. The method includes: receiving a cylindrical lens detection instruction for a target screen, wherein the cylindrical lens detection instruction at least includes target viewpoints; acquiring browsing images shot from the target screen under the target viewpoints in response to the detection instruction, wherein the target screen is a screen of which the light emission side is provided with cylindrical lenses; using the browsing images as viewpoint images under the condition that the browsing images include target contents; and outputting detection parameters of the cylindrical lenses on the target screen based on image parameters of the viewpoint images.

Abstract: Embodiments of the present disclosure relate to method, device and computer program product for data backup. The method comprises: in response to receiving from a backup server a data stream to be backed up, dividing the data stream into a plurality of data segments; distributing the plurality of data segments to at least one computing node; in response to receiving an index of a corresponding data segment from a first computing node of the at least one computing node, looking up the index in a global index cache, the index being generated by the first computing node to uniquely identify the data segment, the global index cache storing indexes of data in a backup storage device; in response to the missing index in the global index cache, adding the index into the global index cache; and sending to the first computing node an indication to store the data segment in the backup storage device.

Abstract: A low-voltage power supply system includes: a storage battery; an electric control circuit board, the electric control circuit board being connected with the storage battery, a battery management controller (BMC) and a motor controller being integrated on the electric control circuit board, and the motor controller being configured to control a power module; a control circuit being connected with the BMC and being configured to receive a control command of the BMC; a metal-oxide-semiconductor field-effect transistor (MOSFET) connected with the control circuit; and a battery management system. A contactor is arranged in the battery management system. The MOSFET is connected with the contactor and mounted to the electric control circuit board or the battery management system. The BMC is configured to control on/off of the MOSFET through the control circuit, to implement connection/disconnection between the storage battery and the contactor.