Abstract: Systems and methods that make use of cluster-level redundancy within a distributed storage management system to address various node-level error scenarios are provided. According to one embodiment, an instance of a key-value (KV) store of a first node of a plurality of nodes of a cluster of a distributed storage system manages storage of data blocks as values and corresponding block identifiers (IDs) as keys. A list of missing block IDs that are in use for one or more volumes associated with the first node but that are missing from the instance of the KV store are identified by performing a data integrity check on the instance of the KV store. After identifying the list of missing block IDs, instead of treating the first node as failed, restoring the missing block IDs by writing redundant data blocks retrieved from other nodes within the cluster to the first node.

Abstract: The present invention provides a polymeric mitral heart valve. The polymeric mitral heart valve includes leaflets, a stent frame, and an annulus; the stent frame has a hollow cylindrical structure, and the stent frame includes a first end and a second end; the first end is arranged with three circumferentially spaced strut peaks, with strut valleys formed correspondingly; the annulus is arranged on the outer periphery of the second end of the stent frame, and the annulus forms two protruding sections axially toward the first end at positions circumferentially corresponding to two of the strut peaks and a planar section at the remaining one strut peak. The polymeric mitral heart valve provided by the present invention adopts optimized structures of the annulus and the stent frame, thereby improving the adaptability between the annulus and the native annulus, and enhancing the radial supporting force of the stent frame.

Abstract: The present disclosure provides a display panel, a method of manufacturing the same, and a display device, which belong to the technical field of display. A peripheral area of the display panel is provided with a photosensitive TFT structure, the photosensitive TFT structure includes a reference TFT unit and a photosensitive TFT unit, first electrodes of a reference TFT included in the reference TFT unit and a photosensitive TFT included in the photosensitive TFT unit are connected to a signal input terminal of the photosensitive TFT structure; a second electrode of the reference TFT is connected to a second signal line of the photosensitive TFT structure; a second electrode of the photosensitive TFT is connected to a third signal line of the photosensitive TFT structure; a gate electrode of the reference TFT is connected to a first control terminal of the photosensitive TFT structure, and a gate electrode of the photosensitive TFT is connected to a second control terminal of the photosensitive TFT structure.

Abstract: An air-cooled electric vibrating table: an improvement of an air-cooled part on an existing basis is that three or more flow guide air duct structural blocks are evenly distributed along the circumferential direction and flatly attached on the surface of an excitation coil or the bottom side thereof, the air duct structural blocks are provided with semi-open grooves that are axially coincident with or close to air inlets, and the grooves of all the air duct structural blocks are oriented to be consistent along the circumferential direction of a cavity; and a positioning block is adjusted to be flow guide blocks inserted obliquely with the axial direction of the vibrating table.

Abstract: A display system includes: a multi-scenario trigger circuit (10), which is configured to determine, according to a usage scenario triggered by a display device, a display partition used for high-definition display among a plurality of display partitions; a display content generation circuit (20), which is configured to render each frame of partition image of the display partition used for high-definition display, and fuse a partition identifier of the corresponding display partition into each frame of rendered partition image, so as to form a frame image data stream; a display drive control circuit (30), which is configured to generate a control instruction stream for driving the display partition used for high-definition display.

Abstract: A photosensitive system, a display apparatus and a method for determining a position of a human eye, the photosensitive system comprises: photosensitive array devices arranged in an array, an amplification circuit, an analog-to-digital conversion circuit and a coordinate determining circuit.

Abstract: Coarse particle flotation equipment and method based on coupled fluidization of cyclone and damping are provided. The flotation equipment includes a flotation column. A raw ore feed pipe is provided in an upper part of the flotation column. The flotation column is sequentially divided into a mine tailing bottom launder area, a cyclone mineralization area and a static separation area from bottom to top. A plurality of water-gas mixing jet pipes which are obliquely arranged inwardly and upwardly and communicated with an inner cavity of the flotation column being provided at a side wall of the cyclone mineralization area, jet directions of the plurality of water-gas mixing jet pipes are distributed clockwise or anticlockwise around an axis of the flotation column, and a damping element for reducing turbulence of a water flow is further provided between the cyclone mineralization area and the static separation area.

Abstract: A foreign object height measurement method including: storing in advance dependence data indicating a dependence of a calculated value of the height of the foreign object calculated from a foreign object image extracted from the charged particle image on an orientation of the foreign object; extracting a measurement target foreign object image, being an image of a measurement target foreign object, from the charged particle image; and outputting a measurement value of a height of the measurement target foreign object along with a warning regarding reliability or measuring the height of the measurement target foreign object from a charged particle image acquired by rotating the sample stage and changing an orientation of the measurement target foreign object detected from the measurement target foreign object image when it is determined that the orientation of the measurement target foreign object does not satisfy an acceptable error range based on the dependence data.

Abstract: A method for short-process preparation of a heteropoly acid from scheelite and its application in redox flow battery are provided. The method includes: S1, mixing the scheelite with sodium silicate at a W-to-Si molar ratio of (1-3):1, and conducting water leaching and acidolysis; and conducting solid-liquid separation to remove insoluble substances; S2, adding a precipitating agent to a leachate to produce a silicotungstate precipitate, thereby achieving salt precipitation-based purification of silicotungstic acid with a Keggin structure; and S3, redissolving the silicotungstate precipitate obtained in S2, and conducting acidification, extraction, and recrystallization to produce Keggin-type silicotungstic acid with a battery-grade purity. A method for direct short-process production of a heteropoly acid electrolyte in a redox flow battery through in-situ decomposition of scheelite is further provided.

Abstract: A computer-implemented method for generating a compressed dataset. A processor set trains a first machine learning model using a dataset. The first machine learning model is trained to generate probabilities of predictions based on a number of features extracted from columns in the dataset. The processor set ranks the number of features based on a feature attribution analysis for the number of features. The feature attribution analysis determines contribution of each feature from the number of features to predictions made by the first machine learning model. The processor set expands a feature vector using a number of top ranked features from the number of features for generating the compressed dataset. The compressed dataset comprises a number of data entries from the dataset that is associated with the number of top ranked features from the number of features.

Abstract: An image processing method based on a dither algorithm and a display device are disclosed. The method includes: obtaining a to-be-displayed image, and determining a first region and a second region of the to-be-displayed image, where the first region and the second region are determined according to a coverage range of a visual field of a user on a display screen; determining a first dither algorithm corresponding to the first region and a second dither algorithm corresponding to the second region, where parameter matrices the first dither algorithm and the second dither algorithm are different; and obtaining a rendered image of the to-be-displayed image by rendering the first region according to the first dither algorithm and rendering the second region according to the second dither algorithm, and displaying the rendered image on the display screen.

Abstract: An optimal tracking control method for protecting transient performance of a maglev train is provided, relating to the technical field of maglev trains. The method includes: determining a dynamic magnetic suspension model based on a structure of a suspension frame; determining a maglev train model based on the dynamic magnetic suspension model; constructing a corresponding virtual controller based on the maglev train model; constructing a real controller based on the virtual controller; and controlling, by the real controller, a suspension air gap of a maglev vehicle. This application addresses the issues of inconsistent suspension gap output, high costs, and low resource utilization in existing maglev control technology.

Abstract: A repeat transmission processing method includes obtaining, by a terminal, first information; determining, by the terminal, at least one transmission gap in a first repeat transmission process according to the first information; and performing, by the terminal, a first operation in a transmission gap.

Abstract: A water stripping method, a water stripping device, and a water stripping system of a leather fiber are provided, relating to the technical field of leather recycling. Since a leather fiber in a waste leather is easier to be physically opened and impact-stripped than a coating layer, the waste leather with the coating layer can be initially treated by stripping, such that the leather fiber is effectively stripped from the coating layer. This process avoids the problem that the leather fiber and the coating layer cannot be separated due to adhesion, and even if the leather fiber and the coating layer are separated, broken leather fibers may still be doped with some coating layer fragments. Moreover, the process effectively improves an initial treatment effect of the waste leather and a leather fiber recovery rate, thereby improving a recycling rate of the waste leather with the coating layer.

Abstract: A device may receive sensitive attribute data, model prediction data, and true target data associated with a regression machine learning model, and may determine quantities of Gaussian components for Gaussian mixtures. The device may generate Gaussian mixtures of the quantities of Gaussian components based on the sensitive attribute data, the model prediction data, and the true target data, and may determine parameters of estimates of conditional densities by the Gaussian mixtures based on the sensitive attribute data, the model prediction data, and the true target data. The device may calculate an independence measure, a separation measure, and a sufficiency measure of the regression machine learning model based on the Gaussian mixtures and the parameters of the estimates of the conditional densities. The device may perform actions based on one or more of the independence measure, the separation measure, or the sufficiency measure.

Abstract: A method and a chip for picture processing, and a storage medium are provided. The method includes: data of a search window is loaded from a memory cell array, and the data of the search window data is cached to a register array; grouping search is performed on the register array based on motion trajectories of multiple samples of a current picture, and sample data of reference points corresponding to the multiple sample points is outputted in parallel; and sample data of the multiple sample points is determined based on the sample data of the reference points.

Abstract: A method for selecting a collector for synchronous lead-silver enrichment based on coordination chemistry and electrochemistry includes: acquiring electrochemical information on a solid-solid interaction between a silver mineral and galena; acquiring the galena, the silver mineral, and potential targeted mineral-philic groups of the galena and the silver mineral, and outputting chk files; analyzing the quantum chemical calculation chk files to obtain shape and energy level information of frontier molecular orbitals of related minerals and the mineral-philic groups; preliminarily identifying a targeted mineral-philic group for the silver mineral; thermodynamically, determining whether the targeted mineral-philic group preliminarily identified for the silver mineral demonstrates a better adsorption capacity than other mineral-philic groups for the silver mineral; and calculating solvation free energies of targeted mineral-philic group derivatives with different carbon chain lengths and shapes, and determining a

Abstract: The present application discloses a circuit breaker comprising: a housing defining an operating chamber and an arc extinguishing chamber; a severing mechanism provided in the operating chamber and comprising a punch, the severing mechanism being configured to sever via the punch a conductor extending through the housing between the operating chamber and the arc extinguishing chamber; an arc extinguishing medium in the form of a wire mesh and filled within the arc extinguishing chamber; and a gas flow guiding mechanism disposed around the arc extinguishing medium and configured to guide the gas from the punch of the severing mechanism through the arc extinguishing medium when the conductor extending through the housing is severed by the severing mechanism.