36results about How to "Address technical deficiencies" patented technology

The invention discloses a gravure printing machine on-line coding equipment and a coding method thereof. The gravure printing machine on-line coding equipment comprises: several nozzle groups, a base for fixing the nozzles and a base for adjusting the distance between the nozzle groups and the paper. A lifting adjustment mechanism for the distance; wherein, the nozzle group is fixed on the base, the lifting adjustment mechanism is connected with the nozzle group, and each nozzle group further includes sequentially arranged nozzles. Overcoming the technical deficiency of the existing gravure printing machine, not only the existing gravure printing machine can be used to realize inkjet coding, but also the gravure printing process and the inkjet inkjet process can be carried out synchronously, shortening the production cycle and improving the inkjet inkjet efficiency.

The invention provides a chitosan / styrene-acrylic emulsion surface sizing agent for papermaking. A formula of the chitosan / styrene-acrylic emulsion surface sizing agent comprises deionized water, chitosan, ammonium persulfate, ferrous sulfate, styrene, butyl acrylate, methyl acrylate, a composite emulsifier, hydrogen peroxide, a defoaming agent and glyoxal. A preparation method comprises the following steps: 1, stirring 28kg of deionized water and ammonium persulfate for standby use; 2, mixing 16kg of deionized water and ferrous sulfate for standby use; 3, stirring the styrene, butyl acrylate,methyl acrylate and the composite emulsifier for standby use; 4, mixing 100kg of deionized water and hydrogen peroxide for standby use; 5, adding the surplus water into chitosan, heating, and addingthe standby use material of step 1; 6, adding the standby use material of step 2, and preserving the heat for 10 minutes; 7, stirring 10 percent of to-be-used mixed monomer of step 3 and 10 percent ofstandby use material of step 4; 8, adding the remaining standby use materials of step 3 and 4; 9, cooling to 60 DEG C, adding the glyoxal, and stirring for 15 minutes; 10, adding the defoaming agent;and 11, filtering to remove impurities, thus obtaining a finished product. By adopting the sizing agent, the film forming performance, adhesion and paper surface strength of the paper product can beimproved, and the environment-friendly production can be facilitated.

The invention discloses a construction method for a basement of a subway station. The construction method is characterized in that electroosmosis wells are arranged on the outer edge of a basement support and are uniformly arranged along the outer edge of the basement support, and plastic films cover topsoil between slope protection piles and the electroosmosis wells; the basement support adopts a mode of setting side slopes twice, first side slopes are set at parts from the ground surface to the 2 / 3 depth of the basement, high-strength composite battens are arranged at the parts of the first side slopes, and the high-strength composite battens at the upper parts are shorter than the high-strength composite battens at the lower parts; second side slopes are set at parts from the 2 / 3 depth of the basement to the bottom of the basement; anchor rods are arranged at the parts of the second side slopes, and the downward dip angles of the anchor rods are gradually increased from top to bottom; the surface layers of the second side slopes adopt high-strength composite batten bamboo strip nets, and shotcrete is used as concrete on the surface layers; depressurization wells are arranged in the middle of the basement at an interval of every 12-15m, and the diameters of the depressurization wells are 600-700mm; concrete pipes are adopted for protecting walls; water filtering pipes are arranged in confined water parts, the outer sides of the water filtering pipes are wound by nylon gauze, and the water filtering pipes are filled with a 2-4mm pisolite filter material; and clay balls are used as a hole sealing material.

The invention relates to a universal AC measurement method for the external quantum efficiency of a solar battery, which comprises that: an optical part consisting of a xenon light source, a focusing lens and a monochromator supplies monochromatic light; an offset light source provides a working environment for the solar battery; an optical chopper and a phase-locked amplifier use phase-locked technology to measure voltage drops at both ends of a sample resistance; a monochromatic light power meter detects a power of incident monochromatic light; a microcomputer performs instrument control and data processing; and finally, a single-wavelength external quantum efficiency curve of the solar battery is obtained. The invention focuses on the AC measurement method, and the AC measurement method has universality and can be used for various types of solar batteries. The invention also relates to an optoelectronic integrated system, which has the advantages of rapidness and accuracy, reduces the cost of solar battery parameter measurement equipment, improves signal intensity and accuracy, provides more comprehensive battery parameter information, and is used for guiding the improvement onpreparation process and performing research on the mechanism of partly batteries.