5results about How to "Effective regulatory structure" patented technology

The present invention provides a high-protein bio-fermented aquatic feed and a preparation method thereof. The aquatic feed comprises the following raw materials in parts by weight: 20-30 parts of imported fish meal, 10-15 parts of compound minerals, 5-10 parts of bioactive peptides, 5-10 parts of lysine, 5-10 parts of compound trace elements, 3-8 parts of compound vitamins, 3-6 parts of herbal extracts, 2-5 parts of compound probiotics, 2-4 parts of immune polysaccharides, and 1-3 parts of compound enzymes; the herbal extracts are prepared by fermenting astragalus membranaceus, isatis root, liquorice root, calotropis gigantea, ventilago leiocarpa benth, clove, rhizoma chuanxiong, and galangal officinale. By organically integrating imported fish meal, astaxanthin-peptide chelate, herbal extracts, compound immune polysaccharides, compound probiotics and various nutrients, the present invention realizes the synergistic effect of "promoting feeding - enhancing digestion - strengthening liver and gall - enhancing immunity - resisting stress - inhibiting bacteria - stabilizing water quality", significantly improves the growth rate, survival rate and comprehensive breeding benefit of crustacean aquatic animals, and has good economic value and application prospect.

The invention discloses a passivation material, the structural formula of the passivation material is shown in the specification, X is independently selected from F, Cl, Br or I, and Y is independently selected from-PO3H2,-SO4H,-COOH,-OH or-SH. The passivation material and uncoordinated Pb < + > on the surface of the perovskite can form a powerful double-site coordination effect, the interface defect state density is remarkably reduced, and non-radiative recombination is inhibited. Meanwhile, the interface energy band structure is effectively regulated and controlled, the Fermi level is moved upwards, the surface n-type characteristic is enhanced, and therefore energy level alignment is optimized, the electron extraction potential barrier is reduced, and the charge transmission efficiency is improved.

The present application relates to the technical field of gas sensing, and particularly relates to a hetero-metal atom doped Bi2S3 nanomaterial, a preparation method thereof, a gas sensor and application, and the preparation method of the hetero-metal atom doped Bi2S3 nanomaterial comprises the following steps: mixing bismuth salt, bromine salt, a sulfur source, a surfactant and an organic solvent to obtain a mixture; mixing the mixture with a salt containing a hetero-metal atom, and obtaining the hetero-metal atom doped Bi2S3 nanomaterial after a solvothermal reaction. The hetero-metal atom doped Bi2S3 nanomaterial is successfully synthesized by a simple one-step solvothermal method. The morphology of the nanomaterial synthesized by the method includes one-dimensional nanowires, two-dimensional nanosheets and three-dimensional nanoflowers. The morphology has a high specific surface area, increases the sufficient contact between NO2 gas molecules and active sites, and accelerates the charge transport, thus being beneficial to improving the sensitivity in the gas sensing process.

The invention provides a rhizoma polygonati polysaccharide extract weaned piglet feed additive and application thereof.The feed additive comprises a rhizoma polygonati polysaccharide extract, and the rhizoma polygonati polysaccharide extract comprises, by mass, 36%-49.8% of rhizoma polygonati polysaccharide, 3%-12% of saponin, 2%-8% of flavone, 30%-45% of total amino acid and 0.2%-1% of alkaloid. Polygonatum sibiricum polysaccharide has various pharmacological activities such as anti-inflammation and bacteriostasis, immunity regulation, tumor resistance, oxidation resistance, blood sugar and blood fat reduction and the like, the polygonatum sibiricum polysaccharide extract is reasonably added into weaned piglet basic feed breeding, and the application dosage of the polygonatum sibiricum polysaccharide extract is 150-600 mg per kg of weaned piglet basic feed; the feed antibiotic can replace feed antibiotics, and can effectively reduce the diarrhea rate of weaned piglets, regulate the intestinal flora structure and improve the abdominal and intestinal morphology of the weaned piglets, so that the survival rate of the weaned piglets in the early stage is increased, the breeding cycle of a farm is shortened, and the reproductive performance is improved.

The application discloses a modified PET material and a preparation method thereof, and belongs to the technical field of PET materials. The method comprises the following steps: uniformly mixing rPET, an antioxidant, a lubricant and modified particles in a high-speed mixer, melt blending by using a double-screw extruder, and extruding and granulating, so that the modified PET material is obtained; the modified particles are a core layer of cerium-doped nano zinc oxide, and a surface is coated with a shell layer structure of a glycidyl methacrylate polymer; the antibacterial performance of the PET is improved while the toughness of the PET is considered, so that the problem of the decrease of the toughness of the material caused by the introduction of inorganic antibacterial agents is avoided.