Abstract: The present invention relates to a method for carbon dioxide capture and concentration by partitioned multistage circulation based on mass transfer-reaction regulation. In the present invention, multiple means such as multistage circulating absorption, intelligent multi-factor regulation, pre-washing and cooling, inter-stage cooling, post-stage washing, slurry cleaning, cooling water waste heat utilization, small-particle-size and high-density spraying, external strengthening field such as a thermal field/ultrasonic field/electric field, and catalysis by composite catalyst are adopted, so that the target for low cost, low energy consumption, stability and high efficiency is realized. The secondary pollutants are effectively inhibited while carbon dioxide is efficiently captured; meanwhile, high-efficiency capture, low-energy desorption, and high-purity concentration of carbon dioxide are implemented.

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 invention relates to an organic compound, an organic electroluminescent material, and an organic electroluminescent element. The structural formula of the compound is shown in formula (I). When the organic compound of the present invention is used for preparing an organic electroluminescent element, the electron mobility, thermal stability, and luminescent characteristics are excellent; and the organic compound can be applied to an organic layer of the organic electroluminescent element. The organic compound of the present invention has a relatively good film-forming property; and when same is applied to an electron transport layer and an electron transport auxiliary layer, an organic electroluminescent element, which has a lower driving voltage, a higher light emission efficiency, and a longer service life than existing electron transport materials, can be manufactured, and thus, a full-color display panel with having improved performance and a prolonged service life can be manufactured.

Abstract: The invention provides triple crosslinked cooling hydrogel compositions of high tensile strength, high compressibility, high elasticity, and long cooling period and methods of making the compositions. The compositions are useful in clothing and equipment for wear in high solar radiation environments and high temperature environments.

Abstract: A printed circuit board includes: a board body including one or more wiring layers; a control chip and a target electronic component arranged on one of the one or more the wiring layers on a surface of the board body; a target wiring layer where the target electronic component is placed including a copper absent area around the target electronic component, and a ground backflow connection arranged around the target electronic component to electrically connect a copper area which is formed by the copper absent area with a primary copper area on the target wiring layer.

Abstract: A printed circuit board includes: a board body including one or more wiring layers; a control chip and a target electronic component arranged on one of the one or more the wiring layers on a surface of the board body; a target wiring layer where the target electronic component is placed including a copper absent area around the target electronic component, and a ground backflow connection arranged around the target electronic component to electrically connect a copper area which is formed by the copper absent area with a primary copper area on the target wiring layer.