Abstract: A structured light 3D measurement device and method based on defocus-degree-based unwrapping. Binary fringes varying in fringe width are projected onto an object, and a corresponding fringe image is collected by a camera, and then subjected to phase demodulation to calculate a wrapped phase. The defocus degree is calculated according to modulation degrees of the binary fringes. The defocus degree is plugged into the defocusing phase function to obtain a normalized reference phase. The wrapped phase is subjected to phase unwrapping based on the normalized reference phase to obtain an absolute phase to reconstruct a 3D point cloud.

Abstract: A mixer, an exhaust aftertreatment component, an exhaust aftertreatment system and a vehicle in which the mixer comprises: an inlet cover, providing an inlet space; an outlet cover, providing an outlet space; and a connecting pipe part, comprising a gas inlet inside the inlet space, a gas outlet inside the outlet space, and an injection inlet; wherein the connecting pipe part comprises a conical section and a pipe section connected downstream to the conical section, the conical section is located inside the inlet space, a side wall of the conical section comprises a plurality of openings distributed along a circumferential direction, the gas inlet comprises the plurality of openings, and a swirling structure is provided on the plurality of openings.

Abstract: A mixer, a mixer assembly and a mixing method in which the mixer comprises a shell defining a first space, the first space receives engine exhaust, and the shell has a mounting area located on a wall of the shell; a doser mounting base arranged in the mounting area for mounting the doser, wherein the doser mounting base comprises a spray inlet as an inlet end for the spray that is sprayed by the doser entering the first space, and the doser mounting base further comprises a first swirl structure that surrounds the spray inlet to make the exhaust form a swirl around the spray inlet.

Abstract: Storage management techniques involve: acquiring target data in a target storage page in a memory; determining, based on the target data, check information and identification information associated with the target data, the check information being used to verify whether the target data is correct and the identification information being used to identify the target data; and determining, based on the identification information, storage information associated with the target data and the check information, the storage information indicating whether to store the target data and the check information to a persistent storage device. Therefore, the processing efficiency can be improved, and the input/output (I/O) performance can be improved.

Abstract: An ESD protection circuit includes a trigger transistor that is responsive to a detection signal indicating an ESD event. The trigger transistor pulls the voltage of a hold node towards a voltage of a power supply rail in response to the detection signal indicating an ESD event. The ESD protection circuit includes a replica trigger transistor whose leakage current controls current provided to the hold node after the detection signal no longer indicates an ESD event to compensate for leakage current through the trigger transistor.

Abstract: Techniques manage a redundant array of independent disks. In such a technique, a response time of a first storage device in the RAID is compared to a first threshold. In response to the response time of the first storage device exceeding the first threshold, the first storage device is configured as a pseudo-degraded storage device, such that the pseudo-degraded storage device is responsive to write requests only.

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 method for detecting thermal runaway of a cell includes: positioning a battery pack having multiple cells in an automobile vehicle; measuring a cell voltage of the multiple cells at a predetermined sample rate; and identifying if the cell voltage decreases and modulates coincident with a cell surface temperature increase indicating initiation of a cell short.

Abstract: The present disclosure relates to the technical field of mechanical precision manufacturing, in particular to a motor tracking error reduction method and an implementation device based on a micro-drive unit. A motor tracking error reduction method based on micro-drive unit includes: providing a motor mover as the working output end, and feeding back the position information of the motor mover to the micro-drive controller in real time by the sensor; controlling the micro-drive unit to compensate the displacement of the motor mover by the micro-drive controller; correcting the tracking error of the motor mover after the displacement compensation, and feeding back the tracking error information after correction to the motor controller. The error reduction method and implementation device in the present disclosure reduce the motor tracking error and solve the problem of coupling interference. In addition, the single position feedback is used to reduce the production cost.

Abstract: Provided are a scanning-type X-ray source and an imaging system therefor. The scanning-type X-ray source comprises a vacuum cavity (1), wherein a cathode (2) and a plurality of anode target structures (3) are arranged in the vacuum cavity (1); a gate electrode (4) is arranged in a position, close to the cathode (2), in the vacuum cavity (1); a focusing electrode (5) is arranged in a position, close to the gate electrode (4), in the vacuum cavity (1); and a deflection coil (6) is arranged in a position, close to the gate electrode (4), at the outer periphery of the vacuum cavity (1). The scanning-type X-ray source generates electron beams by using cathode (2), controls the powering-on/off of the electron beams by the gate electrode (4), and the deflection coil (6) controls the direction of motion of the electron beams, so as to complete the switching between multiple focuses.

Abstract: Techniques for managing data involve receiving a write request to write a data block into a first stripe in a disk array, the write request comprising a first storage address for storing the data block. The techniques further involve determining, based on the first storage address, a first group of disks related to a data portion of the first stripe and a second group of disks related to a parity portion of the first stripe. The techniques further involve, in response to a first disk in the first group of disks being unavailable, storing a data sub-block related to the first disk into a first parity portion of the parity portion such that the data block is stored in the first stripe, the first parity portion being located at a second disk in the second group of disks. The techniques further involve returning a response to the write request, the response comprising a first indication indicating a status of the disks in the disk array.

Abstract: According to several aspects of the present disclosure, a battery module housing cooling assembly is disclosed. The battery module housing cooling assembly can include an endwall including a first polymer plate and a second polymer plate that define a slot therebetween. At least one of the first polymer plate or the second polymer plate define a channel therein that is configured to receive a coolant fluid, and the slot is configured to receive an electrical connector. The battery module housing cooling assembly can also include a cooling plate defining a first connection port and a second connection port, wherein the first connection port and a second connection port are configured to provide the coolant fluid to the channel.

Abstract: Techniques involve determining the number of disks in a Redundant Array of Independent Disks (RAID) storage system, and the storage system comprises multiple types of mixed disks. The techniques further involve determining a target number of RAID sets to be allocated in the storage system according to the number of disks and a predetermined threshold, and then allocating the multiple types of disks to the RAID sets according to the target number and types of disks. Such techniques propose a way to allocate mixed disks to the corresponding RAID sets. When the RAID set grouping is performed to mixed disks of the storage system, the same type of disks are allocated in the same RAID set as much as possible, thereby improving the performance of the storage system.

Abstract: Techniques are directed to managing Redundant Array of Independent Disks (RAID) storage space. One technique involves providing, by RAID circuitry, a storage space request to mapper circuitry; receiving, by the RAID circuitry, a storage space reply from the mapper circuitry in response to the storage space request; and performing, by the RAID circuitry, a follow-up operation based on the storage space reply from the mapper circuitry. Another technique involves, receiving, by mapper circuitry, a storage space request from RAID circuitry; performing, by the mapper circuitry, a storage space management operation in response to the storage space request; and providing, by the mapper circuitry, a storage space reply to the RAID circuitry, the storage space reply identifying a result of the storage space management operation.

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: An optical device and a spectral detection apparatus are provided. The optical device includes an optical waveguide, including: a polychromatic light channel configured to transport a polychromatic light beam, and provided with a light incident surface for receiving the incident polychromatic light beam at an input end of the polychromatic light channel; a chromatic dispersion device arranged downstream from the polychromatic light channel in an optical path and configured to separate the polychromatic light beam from the polychromatic light channel into a plurality of monochromatic light beams; and a plurality of monochromatic light channels arranged downstream from the chromatic dispersion device in the optical path and configured to respectively conduct the plurality of monochromatic light beams with different colors from the chromatic dispersion device.

Abstract: A display panel, a display method thereof and a display device are provided. The display panel includes cylindrical lens array on light emitting side of display substrate. The display substrate includes back plate, pixel definition layer and sub-pixel unit array on back plate. Each sub-pixel unit is in pixel region defined by pixel definition layer and includes at least two secondary sub-pixels; and cylindrical lenses are corresponding to sub-pixel units, each cylindrical lens has cylindrical surface away from back plate, and focus point on surface of a sub-pixel unit away from back plate. In the display panel, multi-viewpoints parallax 3D display compatible with near-to-eye light field display and 2D display with sub-pixels of same gray scale is achieved, effectively reducing the crosstalk, improving Moire phenomenon and increasing stereo perception of the parallax 3D display and solving visual fatigue due to conflict between monocular focusing and binocular convergence.

Abstract: A method, computer program product, and computing system for allocating a first set of cores of a plurality of cores of a multicore central processing unit (CPU) for processing host input-output (IO) operations of a plurality of operations on a storage system. A second set of cores of the plurality of cores may be allocated for processing flush operations of the plurality of operations on the storage system. A third set of cores of the plurality of cores may be allocated for processing rebuild operations of the plurality of operations on the storage system. At least one of one or more host IO operations, one or more rebuild operations, and one or more flush operations may be processed, via the plurality of cores and based upon, at least in part, the allocation of the plurality of cores for processing the plurality of operations.

Abstract: A device for optical-field displaying includes: a display screen and a lens unit provided on a light exiting side of the display screen; the lens unit includes a plurality of lenses arranged in an array; the display screen is provided on a focal plane of the plurality of lenses; the display screen includes a first substrate and a second substrate that match; the first substrate is a light-exiting-side substrate, the second substrate includes a plurality of pixel islands arranged in an array; the plurality of pixel islands correspond to the plurality of lenses; a view region formed by light rays emitted by the sub-pixels of the pixel islands and propagated via the corresponding lenses to a human eye is smaller than or equal to a half-pupil region, and light rays of different viewpoints emitted by different sub-pixels of the pixel islands enter different cone cells via the lenses.

Abstract: Techniques for managing storage blocks involve: according to a first request for allocating a target number of consecutive storage blocks from a storage device, querying an index table that is used to record index information of a plurality of groups of consecutive idle storage blocks in the storage device to determine a first group of consecutive idle storage blocks from the plurality of groups of consecutive idle storage blocks; allocating the target number of consecutive storage blocks from the first group of consecutive idle storage blocks; updating a bitmap that is used to record states of a plurality of storage blocks in the storage device; and updating first index information of the first group of consecutive idle storage blocks recorded in the index table. Accordingly, such techniques may reduce storage complexity and improve system performance.