4results about How to "Improve detection level" patented technology

The application provides a display panel detection method, electronic equipment and a computer readable storage medium. Specifically, the detection method comprises: acquiring a display picture of a display panel; determining a display abnormal area from the display picture; dividing the display abnormal area into a plurality of sub-areas and determining a corresponding gray scale value variance of each sub-area; determining a fluctuation parameter based on the gray scale value variance; and determining a display abnormal reason of the display picture based on the fluctuation parameter. Specifically, the application determines the gray scale value variance of each sub-area by using the pixel gray scale value size distribution difference in the display abnormal area, obtains the fluctuation parameter of the entire display abnormal area, and then effectively and accurately detects the display abnormal reason of the display abnormal area by using the fluctuation parameter, thereby improving the detection level.

This invention provides a powder sample sampling method and a powder particle size testing method for laser particle size analysis. The sampling method includes the following steps: providing the powder to be tested; determining the theoretical sampling weight range of the powder to be tested based on the expected particle size D50; and weighing the powder sample that falls within the theoretical sampling weight range. This invention accurately determines the theoretical sampling weight range of the powder based on its expected particle size D50, and uses this as the basis for sampling, fundamentally eliminating the uncertainty caused by human operation, improving the repeatability of test results between different operators and different batches; avoiding deviations in shading rate due to excessive or insufficient sampling, ensuring that particle size testing is carried out under optimal optical conditions, and improving the accuracy of test results; users do not need to repeatedly try different sampling amounts, significantly improving the one-time success rate, saving time, reducing sample consumption, and the method is simple, low-cost, and easy to promote.

This invention discloses a tenon-and-mortise splicing ferrite magnetic shielding device and method. Addressing the limitations of existing ferrite magnetic shielding methods, such as limited overall size, severe magnetic leakage, difficulty in multi-layer adaptation, high cost, and poor maintenance flexibility, as well as the stringent shielding requirements of medical equipment and high-precision atomic magnetometers in complex magnetic environments, this invention introduces a core design of "modular fan-ring units + tenon-and-mortise interlocking structure" and corresponding splicing methods. These methods utilize stepped surface contact tenons to increase the splicing contact area to ensure magnetic flux continuity, multi-layer coaxial positioning benchmarks to optimize tolerance adaptation, independent replacement and cleaning of modular fan-rings, tooling assistance, and performance calibration splicing processes. These improvements enhance magnetic shielding effectiveness and multi-layer adaptation accuracy, while reducing vertical and inter-layer magnetic leakage. Furthermore, based on the modular design and tenon-and-mortise structure characteristics, breakthroughs have been achieved in the fabrication of large-diameter magnetic shielding and independent maintenance of individual fan-rings, reducing the cost of large molds and the overall lifecycle maintenance cost of the equipment.

This invention discloses a low-density liquid chromatography-mass spectrometry (LC-MS) chip for upland cotton based on targeted capture sequencing and its applications. The low-density chip includes 908 SNP loci, of which 329 are significantly associated with important agronomic traits such as fiber quality, yield, and disease resistance in upland cotton, 14 are common transgenic detection loci, and 565 are other loci. This chip is suitable for applications in detecting transgenic components in upland cotton varieties, resource evaluation and kinship identification, seed purity identification, and genetic improvement of major agronomic traits in upland cotton varieties.