9results about How to "Improve physics" patented technology

This invention provides a method and application for the ecological restoration of rock mine slopes in ecologically fragile high-altitude areas, specifically relating to the field of ecological environment restoration technology. The ecological restoration method includes: leveling the rock mine slope in an ecologically fragile high-altitude area, then restoring the slope's topography by covering it with topsoil; constructing a masonry diamond-shaped grid structure for protection on the rock mine slope, planting native shrubs and grasses within the grid; installing an integrated water and fertilizer drip irrigation system on the rock mine slope; and finally, applying sprayed concrete or constructing slope supports to prevent soil erosion on the slope surface; wherein the altitude of the high-altitude area is >4000m. This ecological restoration method provides strong technical support for the ecological restoration of rock mine slopes in ecologically fragile high-altitude areas, and also provides important guarantees and references for ecological restoration work after mining in high-altitude regions.

The present application belongs to the field of information technology, and particularly relates to a coal mine methane emission tracing method based on multi-isotope analysis and associated gas coordination. By fusing multi-isotope characteristics and associated gas ratio analysis, a multi-dimensional tracing system for coal mine regional methane emission is constructed, which significantly improves the accuracy and reliability of methane source identification. Compared with the traditional tracing method relying on single isotope or concentration statistical method, the present application can effectively distinguish various emission types such as coal mine gas, coking plant, coal-fired and agricultural sources in a complex mixed source environment, and realize high-precision cause analysis of multi-source methane emission. The present application realizes the spatio-temporal matching of isotope characteristics and transport path, and can quantitatively identify the influence of high-altitude and external source input on ground concentration.

The utility model relates to food additive production technical field, and disclose a kind of food additive mixing device, including mixing device ontology, the mixing device ontology top is provided with mixing mechanism, the mixing mechanism bottom is provided with discharging mechanism, the mixing mechanism includes mixing subassembly and ration component, the mixing subassembly is set to mixing device ontology top, the ration component is set to mixing subassembly top, when using, by the mixing mechanism being set, when needing to carry out mixing work in the process of food additive production, under the action of threaded rod and mounting frame, sealing cap can be driven to move to the top of mixing box, not only can play the sealing effect, simultaneously convenient to the cleaning of mixing box inside after mixing is completed, by the second cylinder and promote baffle sliding, the dosing amount of each additive can be accurately controlled, and two groups of storage tank are symmetrically distributed, can conveniently simultaneously quantitatively put two different additives.

This invention relates to a doped yttrium oxide flake powder, its preparation method, and its applications. The method uses 0.2-0.4 M Y(NO₃)₂. 3 ) 3 ·6H 2 O solution as Y 3+ Source, then add MgCl to the solution 2 and Al(NO 3 ) 3 ·9H 2 O was used as a dopant. After adjusting the pH of the mixed solution to 8-10, a hydrothermal reaction was carried out at 170-200°C for 9-15 hours to achieve uniform distribution of the dopant in the yttrium oxide lattice. Finally, the powder was calcined at 600-700°C for 3-5 hours to improve the structural stability and properties of the material. The synthesized doped yttrium oxide powder had a plate-like morphology with a particle size between 5-25 micrometers, and the final product composition included Y. 2 O 3 MgAl 2 O 4 And Y-Al-O compounds. Compared with traditional physical doping methods, the preparation method of this invention not only achieves a more uniform doping effect, but also shows significant advantages in terms of energy consumption, cost, and particle size control. The doped yttrium oxide obtained by this method has performance superior to or equivalent to high-purity yttrium oxide, providing a new avenue for the further application and development of yttrium oxide.

This invention discloses a method for fermenting fresh almond flowers with *Lactobacillus plantarum*, the fermentation products, derivatives, and their applications. The method uses fresh almond flowers as raw material. After pretreatment, pulping, substrate preparation, and sterilization, *Lactobacillus plantarum* is inoculated for anaerobic or microaerobic fermentation. After fermentation, enzymes are inactivated and separated to obtain the fermentation expression product. This fermentation expression product is rich in free amino acids, small peptides, aromatic compounds, organic acid derivatives, and polyphenol derivatives, exhibiting a mild and natural aroma and excellent antioxidant and soothing activities. This invention also provides derivatives obtained from further processing of this fermentation expression product, and their applications in cosmetics, skincare products, natural fragrances, and functional foods. This invention features a mild process, is solvent-free, and highly safe, achieving high-value utilization of fresh almond flowers.

The application relates to a preparation method and application of a soapnut-based Fe / Mn-N co-doped hydrothermal carbon adsorbing antibiotic material, and the soapnut is washed and dried, ground, and 80-mesh screening is conducted during grinding to obtain soapnut powder; the soapnut powder, an Fe source and an Mn source are placed in a hydrothermal reaction kettle containing deionized water, and air drying is conducted at 170-180 DEG C for 10-15 h; after being cleaned by ultra-pure water filtration, the hydrothermal carbon is obtained by transferring the hydrothermal carbon to an oven for drying until the weight is constant, grinding by a maragda mortar, and 100-mesh screening; the hydrothermal carbon and urea are placed in a ball mill, and ball milling treatment is conducted at a speed of 500 rpm for 4.5-5.5 h to obtain the soapnut-based Fe / Mn-N co-doped hydrothermal carbon adsorbing antibiotic material. The preparation method is simple, low in cost and low in energy consumption; the prepared Fe / Mn co-doped hydrothermal carbon is loaded with nitrogen atoms after ball milling, the dispersity and stability of the hydrothermal carbon are improved, and the metal self-agglomeration is reduced.

The utility model discloses a carbon powder box with protection structure relates to carbon powder box protection technical field, including carbon powder box body, carbon powder box body outer end is provided with storage box, is provided with the protection sleeve in the storage box, and the protection sleeve sleeve connection is in carbon powder box body both sides, protection sleeve side end is connected with the supporting plate, and the supporting plate is located carbon powder box body upper and lower both sides, and the upper end supporting plate upper end is connected with the connecting block, the recess is seted up in the connecting block, and the two connecting block outer end sleeve connection has annular rubber band, the utility model discloses design structure is reasonable, and it can effectively resist the collision, friction from the side, upper and lower surface through the protection sleeve, and annular rubber band can pull the connecting block, and make two protection sleeve closely adhere in the box body both sides, enhance the connection stability of protection sleeve, improve the protection performance of carbon powder box, effectively reduce the damage of collision, extrusion in the process of transportation, storage and use to carbon powder box main part, reduce the risk of carbon powder leakage caused by shell breakage.

The invention discloses a homogeneous degradation method of a cross-linked rubber product, the degradation method uses one or two of a catalyst and a cocatalyst, and simultaneously uses an oxidant and an organic solvent to carry out degradation reaction on the cross-linked rubber product to obtain end group functionalized liquid rubber. According to the degradation reaction, one-step degradation of the crosslinked rubber product can be achieved, conditions are mild, operation is easy and convenient, complex equipment is not needed, and meanwhile the molecular weight and terminal functional groups of the degradation product are accurately controlled. A series of widely used cross-linked rubber products are converted into functionalized liquid rubber under simple conditions, and a foundation is laid for efficient and high-selectivity recovery of rubber wastes (such as tires, rubber gloves and the like) in an actual environment.

This invention belongs to the field of non-precious metal electrocatalytic oxygen evolution materials, and discloses a nanocrystalline copper-manganese alloy for hydrogen production through water electrolysis, its preparation method, and its applications. A nanocrystalline copper-manganese alloy film with a thickness of 1 μm to 10 μm can be obtained by magnetron co-sputtering with a copper and manganese target. The nanocrystalline copper-manganese alloy contains 15%–80% Cu and 20%–85% Mn atomic percentages. Compared with conventional methods, the preparation method of this invention is simpler, and the prepared nanocrystalline copper-manganese alloy exhibits excellent electrocatalytic oxygen evolution performance, showing promising application prospects in fuel cells and water electrolysis for hydrogen production.