Abstract: Provided in the present disclosure are a yeast protein having an antibacterial function and a preparation method therefor. The method includes: S1, performing liquid fermentation on a Saccharomyces cerevisiae strain, and then performing separation to obtain a yeast milk; S2, acidifying the yeast milk to obtain an acidified yeast milk; and optionally performing autolysis, or exogenous enzyme catalytic hydrolysis, or mechanical crushing on the yeast milk to obtain a cell wall emulsion; S3, mixing the acidified yeast milk and the optional cell wall emulsion and performing autolysis to obtain an autolysis mixed solution; S4, performing first enzymolysis with compound protease; S5, performing second enzymolysis with seminase; and performing third enzymolysis with ?-glucanase and cellulase to obtain a yeast protein emulsion; and S6, evaporating and concentrating the yeast protein emulsion to obtain the yeast protein.

Abstract: Provided are a high immune yeast cell wall, and a preparation method therefor and the use thereof. For the high immune yeast cell wall, the dissolution rate is ?40%, glucan with a relative molecular weight of 80-200 kDa accounts for more than 99% of the total mass of glucan, and the content of glucan is 20%-40% on the basis that the mass of the high immune yeast cell wall is 100%. The high immune yeast cell wall has an improved dissolution rate and immune efficacy, is derived from a yeast, and can be used as a raw material or additive of feed.

Abstract: A power supply system (10) is used for supplying power to a power system of an electric tractor and comprises a bracket (100) that is provided above and below a frame of a transport trailer, first cases (200) that are provided on the bracket and first power battery packs that are suspended inside the first case. Each of the first cases is provided with a first ventilation structure and a second ventilation structure (211) so that while the transport trailer is moving, wind can enter the first case from the first ventilation structure and be discharged from the second ventilation structure, thus achieving further cooling and heat dissipation for the first power battery packs and avoiding service life being impacted due to the first power battery pack overheating.

Abstract: Disclosed are a coating for glass molding, a preparation method and application thereof and a mold having the coating. The coating includes a nitride layer and nano precious metal particles which are dispersed in the nitride layer. A surface roughness of the coating is 2-12 nm. The preparation method of the coating includes: cleaning a substrate and targets under an inert gas; and under a mixed atmosphere of nitrogen and the inert gas, depositing, with a high-purity W target, a high-purity Cr target and a precious metal inserted Cr target, a Cr intermediate layer, a nitride layer and nano precious metal particles on a surface of the substrate. The coating has good oxidation resistance and excellent anti-adhesion property. Moreover, the coating effectively inhibits the adhesion between the glass body and the mold.

Abstract: A micro- and nano-hot embossing method for an optical glass lens array, including: preparing a mold with a micro-hole array by micro EDM, where the micro-hole array matches an optical glass lens array and the mold is made of a hard metal material which is conductive and meets strength and temperature requirements; preparing a nano nitride-based graded composite coating on a surface of the mold by magnetron sputtering; and pre-fabricating a glass preform and then placing the glass preform on the surface of the mold; heating the glass preform and hot embossing by a glass molding machine in vacuum; cooling in nitrogen atmosphere; and demolding to produce the optical glass lens array. The micro- and nano-hot embossing method of the present invention improves the surface quality of the optical glass lens array and reduces the cost and difficulty for manufacturing.

Abstract: Disclosed is a coating made of an organic material on a mold for glass molding. The coating comprises CrxWyN(1-x-y), where 0.15<x<0.4, and 0.2?y?0.45. The coating has excellent high temperature resistance and anti-adhesion properties, thus being a promising coating material for molds.

Abstract: A power supply system (10) is used for supplying power to a power system of an electric tractor and comprises a bracket (100) that is provided above and below a frame of a transport trailer, first cases (200) that are provided on the bracket and first power battery packs that are suspended inside the first case. Each of the first cases is provided with a first ventilation structure and a second ventilation structure (211) so that while the transport trailer is moving, wind can enter the first case from the first ventilation structure and be discharged from the second ventilation structure, thus achieving further cooling and heat dissipation for the first power battery packs and avoiding service life being impacted due to the first power battery pack overheating.

Abstract: Disclosed are coatings made of inorganic materials on molds for glass molding, particularly, a graded coating of element diffusion inhibition and adhesion resistance on molds for glass molding. The graded coating includes a Cr adhesion layer which is bonded with a substrate, a CrN intermediate layer and a CrxWyN(1-x-y) surface layer, where 0.15<x<0.4, and 0.2?y<0.45. The graded coating has excellent crack growth suppression and adhesion resistance.

Abstract: Disclosed a method for preparing a matrix protective coating, including a preprocessing step and a like transfer membrane coating preparation step. The like transfer membrane coating preparation step includes the following steps: mixing, drying and cooling YSZ powder and polytetrafluoroethylene powder to obtain a mixture, and then spraying the mixture onto the surface of a preprocessed matrix by an atmospheric plasma spraying method, wherein spraying parameters are set as follows: a moving speed of a spray gun is 440-460 mm/s; the current is 550-600 A, the voltage is 40-50 V, and the power is 24.8-30 kW; the compressed air is 0.6-0.7 MPa; the powder feeding carrier gas Ar is 3-6 L/min; a powder feeding rate is 25-28 g/min; and a spraying distance is 108-112 mm. The wear resistance of the coating of the present invention is significantly improved; the corrosion resistance is excellent; and the superhydrophobic property is excellent.

Abstract: The present invent belongs to the technical field of plating by sputtering coating forming materials, and particularly relates to a contact coating of an electrical connector. In the coating, chromium nitride is doped with precious metal elements.

Abstract: A wear-resistant super-hydrophobic protective coating for a substrate includes a pretreated surface and a composite coating. The composite coating is formed of a mixture of a ZrO2 powder, a PTFE powder and a silicone powder by spraying. A method for preparing the protective coating on a substrate is also provided.

Abstract: Disclosed are a coating for glass molding, a preparation method and application thereof and a mold having the coating. The coating includes a nitride layer and nano precious metal particles which are dispersed in the nitride layer. A surface roughness of the coating is 2-12 nm. The preparation method of the coating includes: cleaning a substrate and targets under an inert gas; and under a mixed atmosphere of nitrogen and the inert gas, depositing, with a high-purity W target, a high-purity Cr target and a precious metal inserted Cr target, a Cr intermediate layer, a nitride layer and nano precious metal particles on a surface of the substrate. The coating has good oxidation resistance and excellent anti-adhesion property. Moreover, the coating effectively inhibits the adhesion between the glass body and the mold.

Abstract: A micro- and nano-hot embossing method for an optical glass lens array, including: preparing a mold with a micro-hole array by micro EDM, where the micro-hole array matches an optical glass lens array and the mold is made of a hard metal material which is conductive and meets strength and temperature requirements; preparing a nano nitride-based graded composite coating on a surface of the mold by magnetron sputtering; and pre-fabricating a glass preform and then placing the glass preform on the surface of the mold; heating the glass preform and hot embossing by a glass molding machine in vacuum; cooling in nitrogen atmosphere; and demolding to produce the optical glass lens array. The micro- and nano-hot embossing method of the present invention improves the surface quality of the optical glass lens array and reduces the cost and difficulty for manufacturing.

Abstract: Disclosed are coatings made of inorganic materials on molds for glass molding, particularly, a graded coating of element diffusion inhibition and adhesion resistance on molds for glass molding. The graded coating includes a Cr adhesion layer which is bonded with a substrate, a CrN intermediate layer and a CrxWyN(1-x-y) surface layer, where 0.15<x<0.4, and 0.2?y<0.45. The graded coating has excellent crack growth suppression and adhesion resistance.

Abstract: Disclosed is a coating made of an organic material on a mold for glass molding. The coating comprises CrxWyN(1-x-y), where 0.15<x<0.4, and 0.2?y?0.45. The coating has excellent high temperature resistance and anti-adhesion properties, thus being a promising coating material for molds.