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: A method for inhibiting myopia and an application in preparing a drug. According to the invention, myopia is inhibited by an anti-hypoxia effect achieved by inhibiting the expression of intraocular HIF-1?, and myopia is effectively delayed and inhibited by an anti-hypoxia effect achieved by inhibiting the effect of intraocular HIF-1?. The present invention utilizes HIF-1? inhibitors salidroside and formononetin to inhibit HIF-1? activity to play an anti-hypoxia effect and play a role in delaying myopia.