Abstract: A preparation method for a decellularized matrix biomaterial, which combines specific pretreatment, degreasing, disinfection, decellularization, ?-Gal antigen removal and sterilization, and reserves the integrity of bioactive components and structures in a material to the maximum extent while effectively removing an antigenic substance of an animal tissue, so that a decellularized matrix biomaterial having low immunogenicity and high biological activity is obtained. In addition, the decellularized matrix biomaterial prepared by the method effectively reduces immunogen components, has good biocompatibility and biological safety, is beneficial to cell adhesion, aggregation and proliferation on the surface, and can be used as a high-activity biological matrix material to be applied to skin soft tissue defect, gingival recession and periodontal soft tissue repair.

Abstract: A non-invasive time domain reflection probe calibration method includes: using different volume ratio of ethanol and deionized water mixed solution to calculate a test target's medium weight coefficient and waveguide length of the non-invasive time domain reflection probes; using different concentrations of NaCl solutions to calibrate a waveguide geometric dimensioning of the non-invasive time domain reflection probes; preparing compacted soil samples with known different moisture contents and densities, and calibrating a correlation parameter of compacted soil samples' dielectric constant and conductivity with moisture content and density. The method not only determines the sensitivity of the test target medium of the non-invasive time domain reflection probes, but also obtains the waveguide length and geometric dimensioning of the probe, and realizes an accurate test of moisture content and density of the soil.

Abstract: The present disclosure relates to an array substrate, a display panel, and a large glass panel. The array substrate includes a test structure. The test structure includes a substrate, and a first conductive layer, an insulating layer, a second conductive layer, and a passivation layer sequentially stacked on the substrate. The passivation layer is provided with at least one first groove, at least one second groove, and one third groove. An opening size of the third groove is greater than opening sizes of the at least one first groove and the at least one second groove. The first groove penetrates through the passivation layer and extends to the first conductive layer. The second groove penetrates through the passivation layer and extends to the second conductive layer. The third groove penetrates through the passivation layer and extends to the first conductive layer or the second conductive layer.

Abstract: The present disclosure relates to an array substrate, a display panel, and a large glass panel. The array substrate includes a test structure. The test structure includes a substrate, and a first conductive layer, an insulating layer, a second conductive layer, and a passivation layer sequentially stacked on the substrate. The passivation layer is provided with at least one first groove, at least one second groove, and one third groove. An opening size of the third groove is greater than opening sizes of the at least one first groove and the at least one second groove. The first groove penetrates through the passivation layer and extends to the first conductive layer. The second groove penetrates through the passivation layer and extends to the second conductive layer. The third groove penetrates through the passivation layer and extends to the first conductive layer or the second conductive layer.

Abstract: A structure for cleaning glass debris and a transporter are provided. The structure includes: a platform and an air cutter arranged at a side of the platform. A minimum angle between the air cutter and a horizontal plane of the platform is less than 90 degrees.