Abstract: The present disclosure provides a sound-pickup device and a display device. The sound-pickup device includes a bracket including a first lateral plate, wherein the first lateral plate has at least one first through hole; a circuit board, including a board body and at least one sound-pickup element arranged on the board body; a first sealing assembly located between the first lateral plate; and the board body, and having at least one second through hole, an orthographic projection of which on a surface of the first lateral plate at least partially coincides with an orthographic projection of the at least one first through hole; and a fixing assembly at least partially located on one side of the circuit board away from the first lateral plate, and configured to press the circuit board against the first sealing assembly.

Abstract: A method for partition display and display device. The method includes: receiving and displaying by the display device, the current frame image, obtaining the fixation point coordinates (100) of the user on the display screen (600) of the display device; according to the fixation point coordinates, dividing the display region of the display screen (600) into a plurality of display areas, and determining first controllers respectively corresponding to the plurality of display areas, and each first controller includes at least one driving chip (SD #1, SD #2, SD #3, SD #4, SD #5, SD #6, SD #7, and SD #8) (101); receiving the next frame image, using the first controllers to respectively control the next frame image for being displayed in the plurality of display areas, wherein the next frame image includes a plurality of sub-images, and one display region is used for displaying one sub-image (102).

Abstract: Systems and methods for performing space balancing heuristics within a distributed storage system that makes use of disaggregated storage are provided. In various examples described herein, the unit of storage space assignment used to associate blocks of storage space within a storage pod with a given dynamically extensible file system (DEFS) is an AA, representing a large chunk of one or more gigabytes (GB). The use of AAs described herein allows disk space to be used more elastically across individual nodes of a storage cluster. Each DEFS periodically reports its AA usage information by persisting it to a respective heuristic block within the storage pod. An AA director operable within the cluster periodically monitors the reported AA usage information, performs a heuristic algorithm to determine donor and recipient DEFSs at a given instance, and triggers AA movement accordingly by matching one or more donor DEFSs to each recipient DEFS.

Abstract: A document index generating system and method are provided. The system has at least one processor and a memory storing a sequence of instructions which when executed by the at least one processor configures the at least one processor to perform the method. The method preprocesses a plurality of pages into a collection of data structures, classifies each preprocessed page into at least one document type, segments groups of classified pages into documents, and generates a page and document index for the plurality of pages based on the classified pages and documents. Each data structure has a representation of data for a page of the plurality of pages. The representation has at least one region on the page.

Abstract: A method comprises receiving, by a radar sensor, reflections from at least two points on a body of a user. The method comprises determining, by a processor operatively coupled to the radar sensor, a change of an elevation angle and a rate of change of the elevation angle of the user with respect to the radar sensor, based on the reflections from the at least two points on the body of the user. The method comprises determining changes of a radar cross-section (RCS) associated with the body of the user along an elevation dimension. The method comprises determining whether a fall event occurred based on at least one of: the rate of change and the change of the elevation angle, or the changes of the RCS.

Abstract: The present disclosure relates to the field of optical lenses, and discloses a camera optical lens and a lens assembly sequentially including seven lenses from an object side to an image side: a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a negative refractive power, a fourth lens having a positive refractive power, a fifth lens having a negative refractive power, a sixth lens having a positive refractive power, a seventh lens having a negative refractive power, and the camera optical lens further includes an aperture; and following relational expressions are satisfied:— 8. ? ( SAG ? 51 / SD ? 51 * R ? 9 ) / ( SAG ? 72 / SD ? 72 * R ? 14 ) ? - 3.3 ; 0.8 ? HC ? 71 / SD ? 71 ? 0 .95 ; 0.85 ? HC ? 72 / SD ? 72 ? 0.97 ; and 1.1 ? ( d ? 10 + d ? 12 ) / d ? 11 ? 2.1 .

Abstract: A computer implemented method includes identifying, by one or more processors, a decision tree corresponding to an artificial intelligence model, detecting, by one or more processors, new data associated with an update to the identified decision tree, identifying, by one or more processors, counterfactual data corresponding to the new data, identifying, by one or more processors, one or more expected outcomes corresponding to the counterfactual data and the new data, and generating, by one or more processors, an updated decision tree based on the identified new data and the identified counterfactual data. A computer program product and computer system corresponding to the method are also disclosed.

Abstract: A food cutting apparatus in the field of food cutting technology is disclosed, comprising a base, two side walls connected to and disposed opposite each other on the base, and at least two divider plates detachably connected to at least one of the side walls, wherein adjacent divider plates together with the side wall define a first cutting space for a first type of food. The apparatus further comprises a removable side panel detachably connectable to the side wall or the base, with at least the two divider plates arranged on the same side of the removable side panel. Upon removal of the removable side panel and at least one divider plate, an unremoved divider plate cooperates with the side wall to define a second cutting space for a second type of food. This configuration enables a single cutting apparatus to perform cutting operations on multiple types of food.

Abstract: An air nozzle includes a housing and an airflow regulation apparatus. The housing includes a target air outlet and an air inlet. Air flow enters the housing through the air inlet and leaves the housing through the target air outlet. The airflow regulation apparatus is located at the target air outlet and is capable of moving between a first position and a second position. The airflow regulation apparatus exerts a greater resistance against the air flow in the first position than it exerts against the air flow in the second position. When the airflow needs to be reduced, the airflow regulation apparatus is regulated to the first position to increase the resistance against the air flow at the target air outlet. When the airflow needs to be increased, the airflow regulation apparatus is regulated to the second position to reduce the resistance against the air flow at the target air outlet.

Abstract: Provided in the embodiments of the present disclosure are a display panel and a display apparatus. The display panel comprises a base substrate, the base substrate being divided into a display area and a peripheral area surrounding the display area; and a driving function layer, located on the base substrate, the driving function layer comprising: a photosensitive transistor located in the peripheral area and a plurality of pixel circuit transistors located in the display area. The peripheral area comprises a first N-well region, the first N-well region surrounding a gate of the photosensitive transistor. The display area comprises a second N-well region, the second N-well region overlapping gates of the pixel circuit transistors. The overlapping area of the second N-well region and the gates of the pixel circuit transistors is larger than the overlapping area of the first N-well region and the gate of the photosensitive transistor.

Abstract: A computer-implemented method of generating an Artificial Intelligence (AI) driven prescriptive policy and executing a function includes obtaining interdependent operational information about the function. A model is trained with the interdependent operational information about the function to dynamically generate a plurality of candidate decision paths from a group of all feasible decision paths for a plurality of interrule logical conditions and one or more dynamic constraints of the operational information. A prescriptive policy is generated from the plurality of candidate decision paths to execute the function that satisfies to a threshold degree of confidence the interrule logical conditions and the one or more dynamic constraints of the operational information. The function is executed based on the generated prescriptive policy.

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.