Abstract: The present disclosure provides a display substrate and a display device. The display substrate includes a base substrate, a driving circuit layer, at least one planarization layer and a light-emitting device layer sequentially arranged on the base substrate. The display substrate further includes: a black pixel defining layer and a spacer on a side of the planarization layer away from the base substrate. In the first display region, an orthographic projection of the spacer on the base substrate does not overlap with orthographic projections of a pixel opening and a connection via on the base substrate. In the second display region, the orthographic projection of the spacer on the base substrate does not overlap with orthographic projections of the pixel opening and a first light-transmitting opening on the base substrate, and at least partially overlaps with the orthographic projection of the connection via on the base substrate.

Abstract: The present invention relates to the technical field of catalysts, in particular to a 2,3-dihydrobenzo[d][1,3]oxaphosphole derivative and a preparation method thereof; compound I was constructed in the present invention utilizing tandem nucleophilic addition (or nucleophilic substitution) and intramolecular SNAr reaction, the method has the characteristics of simple operation steps, high yield, and mild reaction conditions, the technical problems of complex and harsh conditions in the synthesis of oxaphosphinine compounds in a conventional prior art were solved.

Abstract: Disclosed is a vehicle-mounted sound reproduction signal delay method adapted to a listening center position. The method includes the following steps: presetting a coordinate reference system to acquire coordinates of each loudspeaker unit, and setting position coordinates of an initial listening center to acquire an initial distance parameter set for signal processing of a vehicle-mounted sound reproduction system; measuring and acquiring an impulse response from each loudspeaker unit to the initial listening center, and extracting and obtaining an initial delay parameter set; acquiring position coordinates of a new listening center in a specific manner, and acquiring a distance parameter set of each loudspeaker unit relative to the new listening center; and generating optimized delay parameters adapted to a new listener based on the distance parameter set relative to the new listening center.

Abstract: Provided are a display panel, a fabricating method thereof, and a display device. The method includes: forming and patterning a first source-drain material film layer, forming a first source-drain layer in a display region, forming at least one isolation pillar transition pattern in a via-hole encapsulation region; etching a second metal layer to form a recessed part; forming an anode material film layer on the first source-drain layer; forming a first pad located on the protective layer and a second pad located around the isolation pillar; forming a photoresist material film layer on the anode material film layer, exposing the photoresist material film layer to form a patterned photoresist layer in the display region, and completely retaining the photoresist material film layer in the via-hole encapsulation region; etching the anode material film layer to form an anode layer; and stripping off the photoresist material film layer.

Abstract: A display panel and a display device are provided. The display panel includes a base substrate, a driving circuit layer, a light-emitting device layer, and a color film layer. Color film patterns of the color film layer includes first color film patterns, second color film patterns and third color film patterns, light-emitting regions of first color sub-pixels and light-emitting regions of second color sub-pixels are alternately arranged along a first direction to form first sub-pixel rows; light-emitting regions of third color sub-pixels are arranged along the first direction to form second sub-pixel rows. The first sub-pixel row includes a middle first sub-pixel, two adjacent second sub-pixel rows, and two outer first sub-pixel rows. The first color film pattern in the middle first sub-pixel row extends across the adjacent second sub-pixel row and further extends to the outer first sub-pixel row.

Abstract: A method for optimizing the transient performance of a blade pump involves creating initial design models for the blade pump and an impeller, as well as a full-flow simulation model for the blade pump startup process. Structural parameters of the impeller are selected as design variables. Based on the initial design model and the full-flow simulation model, transient numerical calculations during the startup process are conducted using CFD simulation software. The transient external characteristics during the startup process include transient head and transient efficiency. The transient head and transient efficiency during the startup process are processed, resulting in weighted average head and weighted average efficiency. The design variables are used as input parameters, with the weighted average head and weighted average efficiency as response values.

Abstract: Disclosed in the present invention is an X-ray tube calibration method, including acquiring first calibration data of a replaced tube, acquiring partial calibration data of a new tube, wherein the partial calibration data is acquired by performing a scan in a particular coverage range of an X-ray beam emitted by the new tube, and calculating second complete calibration data of the new tube, wherein the calculation is performed on the basis of the first complete calibration data first calibration data and the partial calibration data. The present invention can reduce a time required for X-ray tube calibration and tube radiation life loss.

Abstract: An array substrate is provided. The array substrate includes a second signal line layer including a plurality of signal lines on a base substrate; an anode layer on a side of the second signal line layer away from the base substrate; a pixel definition layer on a side of the anode layer away from the second signal line layer; and a plurality of light transmissive apertures extending through the pixel definition layer, the plurality of light transmissive apertures spaced apart from each other. At least one of the plurality of signal lines includes a first segment extending along a first direction, and a second segment. An orthographic projection of a central line of the first segment extending along the first direction on the base substrate intersects with an orthographic projection of at least one light transmissive aperture of the plurality of light transmissive apertures on the base substrate.

Abstract: A battery comprises a case and a plurality of battery cells. The case has an avoidance portion configured for avoiding a longitudinal beam of a vehicle, wherein the avoidance portion runs through the case in a first direction (x), and the opening of the avoidance portion face a second direction (z). At least some of the plurality of battery cells are disposed inside the case, and with regard to the projections of the plurality of battery cells in a third direction (y), the projection of at least one battery cell overlaps the projection of the avoidance portion. The first direction (x), the second direction (z) and the third direction (y) are perpendicular pairwise, and the third direction (y) is the direction of width of the avoidance portion.

Abstract: A rendering method and a related device are disclosed, and may be applied to a scenario such as production of music or film and television works, or the like. The method may be performed by a rendering device, or may be performed by a component (for example, a processor, a chip, a chip system, or the like) of a rendering device. The method includes: obtaining a first single-object audio track based on a multimedia file, where the first single-object audio track corresponds to a first sound object; determining a first sound source position of the first sound object based on reference information; and performing spatial rendering on the first single-object audio track based on the first sound source position, to obtain a rendered first single-object audio track.

Abstract: A color filter arrangement structure, a display panel and a display device are provided. The color filter arrangement structure includes a first color filter, a second color filter and a third color filter which do not overlap with each other, and the first color filter covers an area between at least part of adjacent second color filters except a gap between the second color filter and the third color filter.

Abstract: The present disclosure provides a probabilistic model for accurate and sensitive somatic single nucleotide variant (SNV) detection in cell-free nucleic acid samples comprising a set of sequence data. A joint genotype may be determined for each locus in the set of sequence data, and germline mutations may be intrinsically removed. A set of filtrations can be applied to eliminate low quality somatic variant calls. Further, a global tumor cell-free deoxyribonucleic acid (cfDNA) fraction and overlapping read mates can be considered, thereby enabling accurate SNV detection and variant allele frequency estimation from samples with low tumor cfDNA fraction. A sensitive early detection of minimal residual disease (MRD) is designed by using the probabilistic model and the machine learning model for distinguishing true variants from sequencing errors.

Abstract: The present disclosure, in some embodiments, relates to a method. The method includes accessing image data stored in a memory. The image data corresponds to a patient. A plurality of pathophysiological mechanism related features are extracted from the image data. The plurality of pathophysiological mechanism related features correspond to one or more pathophysiological mechanisms relating to heart failure. The plurality of pathophysiological mechanism related features are provided to a machine learning component. The machine learning component is configured to generate a medical prognosis for the patient using the plurality of pathophysiological mechanism related features.

Abstract: A system, computer program product, and method are provided for driving database reorganizations subject to determined workloads, and, more specifically, to providing an online partial reorganization of a database to improve workload performance. The method includes collecting performance information for one or more performance sensitive workloads associated with one or more portions of a database and analyzing the collected performance information. For each of the one or more performance sensitive workloads, indications of performance declines thereof are determined. Subject to the determined performance declines, at least one of the one or more database portions affected by the determined performance declines are determined. Subject to the database portions determination, the determined performance declines are classified. Subject to the classification of the performance declines, one or more partial reorganizations of the one or more database portions is executed.

Abstract: A computer implemented method for identifying problematic database operations includes identifying database transactions which exhibit performance issues and corresponding parse trees, transforming corresponding parse trees to create historical descriptor arrays, detecting a new database transaction, generating a new descriptor array corresponding to the new database transaction, analyzing the new descriptor array and the historical descriptor arrays to determine whether the new descriptor array indicates a performance issue corresponding to the new database transaction, and responsive to determining that the new descriptor array indicates a performance issue, adding the new database transaction to a resource controlled pool. The method may additionally comprise encoding one or more data items associated with the database.

Abstract: A display panel and a display device are provided. The display panel includes a base substrate, a driving circuit layer, a light-emitting device layer, and a color film layer. Color film patterns of the color film layer includes first color film patterns, second color film patterns and third color film patterns, light-emitting regions of first color sub-pixels and light-emitting regions of second color sub-pixels are alternately arranged along a first direction to form first sub-pixel rows; light-emitting regions of third color sub-pixels are arranged along the first direction to form second sub-pixel rows. The first sub-pixel row includes a middle first sub-pixel, two adjacent second sub-pixel rows, and two outer first sub-pixel rows. The first color film pattern in the middle first sub-pixel row extends across the adjacent second sub-pixel row and further extends to the outer first sub-pixel row.

Abstract: A battery installation frame includes a frame body, a mounting structure, and a docking structure, where the frame body is configured to be installed to a vehicle body, the mounting structure is integrated on the frame body and configured to mount a battery, and the docking structure is also integrated on the frame body and configured to connect the vehicle body and dock with the battery, so as to enable the battery to form electrical and/or fluidic communication with the vehicle body.

Abstract: A locking mechanism includes a sleeve, a locking piece, an adjustment piece, and a fastening assembly. The locking piece is movably provided in the sleeve, the locking piece has a locked state and an unlocked state, and the locking piece is configured to snap into a lock base in the locked state and snap out of the lock base in the unlocked state, enabling the locking mechanism to engage with or disengage from the lock base along a first direction. The adjustment piece is rotatably connected within the sleeve rotatably about an axis extending along the first direction, where the adjustment piece is threadedly connected to the locking piece, and the adjustment piece is configured to drive, when rotating relative to the sleeve, the locking piece to move relative to the sleeve, so that the locking piece switches between the locked state and the unlocked state.

Abstract: A blower includes a motor housing, a volute disposed on an outer surface of the motor housing, a motor shaft extending through the motor housing, a motor disposed in the motor housing and coaxially mounted to the motor shaft, and a mixed flow impeller disposed in the motor housing and coaxially mounted to the motor shaft. The mixed flow impeller is configured to circulate air inside the motor housing.

Abstract: A value-moving deviation method for acquiring cycle-stage combustion parameters of an engine based on multiple sensing signals includes: with prior values of combustion feature parameters under each piece of working condition information as a reference, reconstructing combustion feature parameter values based on signal features acquired by sensors of the engine, and calculating deviations between the combustion feature parameter values and the prior values and weights of the deviations; obtaining a fusion deviation of the combustion feature parameters as a transient fluctuation amount of the combustion feature parameters; correcting, based on the value-moving deviation method, the prior values according to the obtained transient fluctuation amount, so as to obtain actual values of the combustion feature parameters of a current cycle of the engine; and updating, according to a Weber equation, a combustion heat release rate curve to obtain each piece of transient combustion parameter information under a current