Abstract: A decoupled XY parallel micro-positioning stage, including a central moving platform, fixed mechanisms, bridge-type micro-displacement amplification mechanisms, a four-bar symmetrical flexible guide mechanism and a piezoelectric ceramic. Each fixed mechanism is arranged between adjacent amplification mechanisms and is symmetrical about X and Y axes centered on the moving platform. The amplification mechanism is symmetrically arranged with respect to the X and Y axes, and includes two first and second longitudinal beams and multiple crossbeams. The two first longitudinal beams are provided in parallel and spaced apart. The two second longitudinal beams are arranged spaced apart between the two first longitudinal beams, and are connected to the two first longitudinal beams via the crossbeams. The crossbeams are connected to the longitudinal beams via a flexible hinge. The piezoelectric ceramic is arranged between the two first longitudinal beams.

Abstract: The present application provides a light-ray modulating element, an eyeglass and a 3D displaying system. The light-ray modulating element is applied to a 3D displaying system, the 3D displaying system includes a 3D displaying device, and the 3D displaying device includes a display panel, and a lens unit disposed at a light exiting side of the display panel; light rays emitted by the display panel pass through the lens unit, are shot to the light-ray modulating element, and form two first viewpoint units at a light entering side of the light-ray modulating element, wherein each of the first viewpoint units includes at least two first viewpoints; and the light-ray modulating element is configured for converging light rays emitted by each of the first viewpoint units to form a second viewpoint unit.

Abstract: A Thevenin equivalent model of a lithium-ion battery cell provides the basis for a simplified cell diagnostic relying on cell current and cell terminal voltage measurements.

Abstract: Heat resistant and/or nonstick polymer materials and composites, and cookware including a food support surface comprising an integrated or attached cooking surface formed of the materials and composites. The cookware includes a laminate material with structural rigidity, wherein the laminate material includes a flexible substrate impregnated with the heat resistant polymer material and/or coated with a nonstick coating, and pressed or molded in a shaped cookware or other nonstick items or component. Various cooking devices can be pressed from the material, as well as oven or vehicle components.

Abstract: Techniques for accessing data involve reading data from at least one disk among a plurality of disks. Such techniques further involve detecting whether a lookup table stored on a memory is empty, where the lookup table stores information indicating data loss. Such techniques further involve comparing, in response to the lookup table not being empty, data read information associated with the read data with table items in the lookup table to determine whether there is a table item in the lookup table that matches the data read information. Such techniques further involve sending, in response to determining that there is a table item that matches the data read information, the information indicating data loss. Such a technique improve the efficiency of data access, reduces the complexity of the system and the power consumption of the system, and improves the performance of the system.

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: The present disclosure provides a display panel and a display apparatus. The display panel includes a pixel array layer and a lens array layer. The lens array layer includes micro-lenses arranged along a first direction. The pixel array layer includes pixel islands, each of the pixel islands includes sub-pixel islands arranged along a second direction; each of the sub-pixel islands is divided into sub-pixel groups arranged in the first direction. For two adjacent pixel islands in the first direction, an opaque region is provided in at least one sub-pixel group in an adjacent region of the two adjacent pixel islands, a width of the opaque region is greater than a width of a gap between two adjacent sub-pixels in other sub-pixel groups in a same pixel island. In a same sub-pixel island, gaps between sub-pixels in a sub-pixel group are correspondingly complemented by sub-pixels in other sub-pixel groups.

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: Provides is a display apparatus including: a display panel including: pixel islands in arrays in a row direction and a column direction, pixel islands include n sub-pixels at intervals in the row direction, n>1. The display panel has a preset horizontal direction and a preset vertical direction perpendicular to the preset horizontal direction; a light-splitting assembly at a display side of the display panel, the light-splitting assembly includes light-splitting repeating units extending in a first direction and continuously in the preset horizontal direction, light-splitting repeating units include M light-splitting structures extending in the first direction; a width of M light-splitting structures is equal to a width of K pixel islands in row direction, M and K are positive integers, an included angle between the first direction and the preset horizontal direction and an included angle between the first direction and the preset vertical direction are greater than 0.

Abstract: A display panel includes a plurality of sets of pixel strips extending in a first direction and arranged in a second direction, each set of pixel strips includes a plurality of sub-pixel strips in different colors, spacing between every two adjacent sub-pixels in each sub-pixel strip in the first direction is smaller than or equal to 2 ?m, each set of pixel strips is divided into a plurality of pixel islands arranged in an array in the first direction, each pixel island includes at least four sub-pixels extending in the first direction in each corresponding sub-pixel strip, a width of a view region formed by light emitted by each sub-pixel in each pixel island being propagated to a human eye through a corresponding lens is smaller than or equal to a pupil diameter.

Abstract: Disclosed is a conduction-cooled magnetic flux pump, comprising a refrigerator, a cooling capacity conducting part, a cooling capacity conducting plate, a high-temperature superconducting coil, a high-temperature superconducting tape, an L-shaped machined part, a dynamic sealing device, a motor, a rotating shaft, a bow-shaped epoxy resin machined part, a permanent magnet rotor disk, and a permanent magnet. The cooling capacity conducting plate is connected to the refrigerator, the high-temperature superconducting coil is installed on the cooling capacity conducting plate, the high-temperature superconducting tape is fixed to the cooling capacity conducting plate by the L-shaped machined part. An output end of the motor is connected to one end of the rotating shaft through the dynamic sealing device, the other end of the rotating shaft is rotationally connected to the bow-shaped epoxy resin machined part.

Abstract: Techniques for double parity RAID are disclosed. For example, a system includes a processor coupled to a memory. The processor is configured to: receive a request to store data in data storage disks, wherein the received data is segmented into data blocks; create a distributed parity block P, wherein the distributed parity block is calculated based on the data; select a given data storage disk among the data storage disks to store the distributed plurality block, wherein the given data storage disk is rotated among the data storage disks; write the data blocks to each data storage disk among the data storage disks except the selected data storage disk; write the distributed parity block to the selected data storage disk; create a dedicated parity block Q, wherein the dedicated parity block is calculated based on the data; and write the dedicated parity block to a parity disk.

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 power distribution apparatus includes: a base, a high-voltage connection part and a low-voltage connection part being fixed on the base, a high-voltage loop, a circuit board disposed on the base, a low-voltage loop integrated into the circuit board and electrically connected to the low-voltage connection part, and tabs. At least a portion of the high-voltage loop is disposed on the base. The high-voltage loop is electrically connected to the high-voltage connection part, has a positive-electrode connection end and a negative-electrode connection end, and includes a disconnecting switch core fixed on the base. A first end of each of the tabs is electrically connected to the high-voltage loop, and a second end of each of the tabs is plugged into the circuit board for electrical connection with the low-voltage loop.

Abstract: A beam combining device, enabled to combine a first beam with a second beam of a different spectrum into a combined beam, where the combination may be obtained through a device comprising two antireflective coating, a dichroic filter coating, and a reflective coating arranged on a substrate.

Abstract: A power distribution apparatus includes a base including an interface area, a high-voltage connection part and a low-voltage connection part fixed in the interface area. The power distribution apparatus further includes a high-voltage loop at least partially disposed on the base, being electrically connected with the high-voltage connection part, and having a battery positive-electrode connection end and a battery negative-electrode connection end. The components connected in the high-voltage loop is electrically connected to each other. The high-voltage loop includes a disconnecting switch core fixed on the base. A circuit board is disposed on the base, and a low-voltage loop is integrated into the circuit board. The high-voltage loop and the low-voltage connection part are plugged into the circuit board and electrically connected to the low-voltage loop.

Abstract: A data storage technique involves determining one or more storage allocation units from a virtual storage region corresponding to a disk set including a plurality of disks. The technique further involves allocating a virtual storage unit to the one or more storage allocation units. The technique further involves storing a mapping relationship of the virtual storage unit with respect to the virtual storage region and the one or more storage allocation units. Accordingly, the granularity of each virtual storage unit can be reduced, so that storage resources can be invoked more accurately, and the storage space can be saved.

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 hand-eye calibration method based on three-dimensional point cloud of a calibration plate. The method includes: constructing a two-dimensional checkerboard calibration plate and a three-dimensional scanning system consisting of a camera and a projector; performing a calibration on each of the camera and the projector to obtain internal parameters of the two; performing a calibration on the camera and the projector to obtain a coordinate system transformation relation between the two; changing a pose of the calibration plate for at least three times, and acquiring at least three sets of transformation matrices of the calibration plate relative to a camera coordinate system and transformation matrices of an end of a manipulator relative to a manipulator base coordinate system through point cloud three-dimensional coordinates of the calibration plate; and solving to obtain a high-precision transformation matrix of the camera coordinate system relative to the manipulator base coordinate system.

Abstract: Provided are a display method and a display device, the display method includes: acquiring a viewing position of a user; determining a viewpoint image matched with the viewing position from an image source library to obtain a first viewpoint image; determining a plurality of viewpoint images having parallax with the first viewpoint image from the image source library to obtain a parallax image set; determining, for at least one pixel island, a center sub-pixel from a plurality of sub-pixels in the pixel island according to a positional relationship between the viewing position and at least one sub-pixel in the pixel island; and driving the center sub-pixel in at least one pixel island to display according to the first viewpoint image, and driving other sub-pixels in at least one pixel island to display according to the parallax image set, so as to form a target display picture.