Abstract: A three-dimensional measuring method and system for modulating three-dimensional codes at periodic edges are disclosed, the method includes: step A according to a number of phase levels and a composition rule of the three-dimensional codes, converting the number of phase levels into three-dimensional codes, modulating the three-dimensional codes to periodic edges; step B generating N pieces of modulated three-dimensional codes on periodic edges to form a sinusoidal fringe pattern, according to a N-step phase shift method; step C projecting N pieces of fringe patterns to a surface of an object, collecting the deformed N pieces of fringe patterns on the object surface; step D solving a wrapping phase and a mean intensity of N pieces of fringe patterns; step E since the mean intensities of the adjacent periodic edge codes are different, extracting edge coordinates from the mean intensities by using an edge extraction method.

Abstract: A time optimal speed planning method and system based on constraint classification. The method comprises: reading path information and carrying out curve fitting to obtain a path curve; sampling the path curve, and considering static constraint to obtain a static upper bound value of a speed curve; considering dynamic constraint, and combining the static upper bound value of the speed curve to construct a time optimal speed model; carrying out convex transformation on the time optimal speed model to obtain a convex model; and solving the convex model based on a quadratic sequence planning method to obtain a final speed curve. The system comprises: a path curve module, a static constraint module, a dynamic constraint module, a model transformation module and a solving module.

Abstract: A method, a system, a processing device and a computer storage medium for evaluating a viewpoint density are provided. The method includes: acquiring a quantity of viewpoints of a display panel; comparing a size of an image spot radius of each viewpoint and image point spacing between the viewpoint and an adjacent viewpoint, and selecting one viewpoint as a reference viewpoint, calculating a crosstalk value between another viewpoint except the reference viewpoint and the reference viewpoint; and evaluating a viewpoint density for the auto-stereoscopic display according to the comparison of the size of the image spot radius of each viewpoint and the image point spacing between the viewpoint and the adjacent viewpoint and the calculated crosstalk value between the another viewpoint and the reference viewpoint.

Abstract: Embodiments of the present disclosure relate to a method, an electronic device, and a computer program product for managing a storage system. The method includes: determining multiple storage units provided by multiple storage devices, each storage unit in the multiple storage units having a storage space allocated from a first number of storage devices among the multiple storage devices; dividing the multiple storage units into at least one storage unit group based on a total number of the multiple storage devices and the first number, each storage unit group in the at least one storage unit group including a second number of storage units; and storing, based on a logical address of to-be-stored data, the to-be-stored data into the at least one storage unit group. Embodiments of the present disclosure can allocate storage resources more reasonably and thus improve the performance of a storage system for processing sequential data.

Abstract: The present disclosure relates to a display assembly, a display device and a driving method. The display assembly includes: a display panel provided with a plurality of pixel islands distributed in an array, any one of the pixel islands including sub-pixels continuously arranged along a set direction; and a lens layer arranged on a light exit surface of the display panel and including lenses arranged along the set direction. A lenticular lens pitch is not greater than a size of an opening of each pixel island in the set direction, and along the set direction, a sub-pixel pitch in each of the pixel islands is smaller than a half of the lenticular lens pitch. The lenticular lens pitch is equal to a sum of a size of each lenticular lens in the set direction and a distance between two adjacent ones of the plurality of lenticular lenses.

Abstract: Embodiments of the present disclosure provide a method, an electronic device, and a computer program product for upgrading a storage system. The method includes: acquiring information about a set of candidate periods related to a workload of a storage system, the storage system having a workload lower than a first predetermined threshold during the set of candidate periods; determining, based on user information of the storage system, a target period for upgrade from the set of candidate periods; and performing an upgrade operation on at least a part of components among multiple components of the storage system during the target period. In this manner, the upgrade operation for the storage system can be improved.

Abstract: Techniques for managing a storage system involve flushing a target page in a cache device to a persistent storage device of the storage system. The techniques further involve releasing a resource storing a page descriptor of the target page to a resource pool. The resource pool is configured to provide resources to store page descriptors of pages to be flushed in the cache device. The techniques further involve: if it is determined that an auxiliary descriptor of the target page is located at a tail of a queue of auxiliary descriptors of the pages to be flushed, removing the auxiliary descriptor of the target page from the queue. The auxiliary descriptors of the pages to be flushed are configured to describe the page descriptors of the pages to be flushed. Accordingly, the page flushing performance of the storage system can be improved, thereby improving the input/output performance.

Abstract: Techniques for data recovery involve: reading target data corresponding to a first logical block from a first data block of a stripe of a RAID system, the target data being a compressed version of data in the first logical block; in accordance with a determination that an error occurs in the target data, reading data from a plurality of second data blocks of the stripe and first parity information from a first parity block of the stripe; comparing respective checksums of the data read from the plurality of second data blocks with a first predetermined checksum and a checksum of the first parity information with a second predetermined checksum; and determining recoverability of the target data based on a result of the comparison. Accordingly, it is possible to simplify the data recovery process, reduce the calculation and time costs in the data recovery, and improve the data recovery efficiency.

Abstract: The present invention discloses a polypeptide compound, a pharmaceutical composition, and a preparation method and use thereof. The structural formula of the polypeptide compound is shown in general formula (I): Such polypeptide compounds as ?-opioid receptor agonists have the advantages of better activity and the potential to become clinical candidate compounds.

Abstract: Embodiments of the present disclosure provide a display panel, a driving method thereof and a display device. The display panel includes: a light guide plate, configured to propagate light incident at a set angle by total reflection; an opposite substrate, arranged opposite to the light guide plate; a liquid crystal layer, arranged between the light guide plate and the opposite substrate; and a plurality of light extraction structures. Each light extraction structure includes: a light taking grating arranged on a surface of the light guide plate, a first wire grid structure arranged between the light guide plate and the liquid crystal layer, a second wire grid structure arranged between the liquid crystal layer and the opposite substrate, and a first electrode structure and a second electrode structure arranged between the light guide plate and the opposite substrate.

Abstract: The light extraction device, the detection equipment and the operation method thereof are provided. The light extraction device includes at least one light splitting unit, each of the at least one light splitting unit includes a color separation grating, configured to separate light incident on the color separation grating into a plurality of light beams that are collimated and propagated in different directions and have different colors; a first lens, disposed corresponding to the color separation grating and configured to converge the plurality of light beams; and a first pinhole, located on a side of the first lens away from the color separation grating and correspondingly arranged with the first lens. The first lens is configured to converge a light beam having a preset color in the plurality of light beams to the first pinhole and allow the light beam having the preset color to exit.

Abstract: Rotating disk drives can be partitioned into performance partitions (PPs) each including slices having similar performance in accordance with an allowable difference or tolerance for any of data throughput, bandwidth and data transfer rate. Each subdrive can correspond to slices of the rotating disk drives included in a single PP. Each PP can have a performance level denoting a relative performance ranking of PPs. Each PP tier can include PPs across multiple rotating disk drives have the same performance level. Resiliency sets (RSs) can be configured from the PP tiers where each RS can include slices of subdrives from only one of the PP tiers. Physical ubers or units (PUs) can be allocated from the RSs. Each PU can denote a mapped RAID group configured from slices of different subdrives of one RS. Spare slices can be reserved in each RS or a lowest performance PP tier.

Abstract: A technique involves determining, in redundant array of independent disks (RAID) stripes, source slices for restriping, and allocating, from a reserved capacity for file system check (FSCK), destination slices for restriping. The technique further involves performing restriping for the RAID stripes by copying data in the source slices into the destination slices. Accordingly, using the reserved capacity for FSCK as the destination slices for restriping may mitigate the influence on an available capacity of a mapper during restriping, thereby improving the performance of a storage system.

Abstract: This application provides a data reading method for a retrieval task and a retrieval apparatus. The method includes receiving a first retrieval task request, where the first retrieval task request corresponds to a first retrieval start address and a first retrieval end address in a target data area, and reading data for a first retrieval task starting from the first retrieval start address. The method includes receiving a second retrieval task request in a process of reading data for the first retrieval task. The method further includes obtaining an address of data to be read for the first retrieval task after receiving the second retrieval task request, and determining a second retrieval start address of a second retrieval task in the target data area based on the address of the data to be read. The method further includes reading data for the second retrieval task starting from the second retrieval start address.

Abstract: A display device provided by the present disclosure includes: a plurality of display units arranged in an array, wherein each display unit includes m sub-pixels, the m sub-pixels of the display unit are in one-to-one correspondence with m preset viewing areas, and m is an integer greater than or equal to 2; and refraction structures in one-to-one correspondence with the plurality of display units, wherein each refraction structure is located on a light emitting side of a display unit corresponding to the refraction structure, and the refraction structure is configured to refract light emitted from each sub-pixel of a corresponding display unit to a viewing area corresponding to the sub-pixel.

Abstract: A control system to prevent thermal runaway includes an enclosure housing a plurality of battery cells of a battery module. Each of the battery cells is a pouch-type battery cell includes a core and a pouch enclosing the core and including one or more portions along one or more side surfaces thereof that are attached together by adhesive to form a seal. The adhesive is configured to release the seal when pressure within the pouch exceeds a predetermine pressure value. A gas sensor is configured to sense a predetermined gas in the enclosure. A valve is configured to selectively deliver thermal control fluid from a source. A controller is configured to open the valve in response to the gas sensor sensing the predetermined gas in the enclosure.

Abstract: A fan light has a fan assembly, a connecting assembly, and a lighting disc assembly. The fan assembly has a motor case, a main shaft, and multiple fan blades. The connecting assembly has a connecting unit main body having a main shaft connecting screw hole and multiple lighting disc fixing holes, a screw fixing hole formed on an inner surface of the main shaft connecting screw hole, and a fixing unit. The main shaft is mounted in the main shaft connecting screw hole. The fixing unit is mounted in the screw fixing hole to fix the main shaft. The lighting disc assembly has a lighting disc fixing shell having multiple lighting disc mounting holes. The lighting disc fixing shell is fixed on the top surface of the connecting unit main body via the lighting disc mounting holes and the lighting disc fixing holes.

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: A real-time pose measurement method of a planar coding target for a vision system. The planar coding target includes a plurality of coding elements, a coding block, a coding template, a minimum identification unit pattern and a coding pattern. Each coding element has a unique coding value, and serial numbers of the coding elements are different from each other. The coding block includes four coding elements that are distributed in the same rectangle ABCD and do not overlap with each other. A center of the coding block is an intersection point O of two diagonals of the rectangle ABCD. A coding value of the coding block is associated with coding values of the four coding elements contained therein.

Abstract: This disclosure relates to optical three-dimensional (3D) measurement, and more particularly to a large-depth-range 3D measurement method, system, and device based on phase fusion. Sinusoidal fringes corresponding to multiple high-frequency binary fringe patterns varying in stripe width, a middle-frequency binary fringe pattern, and a low-frequency binary fringe pattern are formed and then projected onto a to-be-measured object. After modulated by height of the object, the sinusoidal fringes are collected, and wrapped phases of the collected sinusoidal fringes are calculated to determine absolute phases of high-frequency sinusoidal fringes. Phase errors of a high-frequency sinusoidal fringe under different fringe widths are calculated according to the defocusing degree. An optimal absolute phase is selected based on the phase errors for the large-depth range 3D measurement.