6results about How to "Continuous and stable release" patented technology

The invention discloses low-GI nutritional meal replacement powder and a preparation method thereof, and belongs to the technical field of preparation of low-GI meal replacement powder. The meal replacement powder is prepared from the following components in parts by weight: 10-20 parts of whey protein powder, 5-10 parts of konjaku flour, 3-5 parts of a roxburgh rose and cactus polysaccharide / sacha inchi protein compound, 3-5 parts of quinoa flour, 3-5 parts of highland barley flour, 3-5 parts of chickpea flour, 3-5 parts of corn flour, 3-5 parts of coarse rice flour, 1-3 parts of citrus fibers, 1-3 parts of pumpkin fibers, 1-3 parts of inulin and 1-3 parts of a hawthorn extract. 1 to 3 parts of blueberry extract, 0.5 to 2 parts of DL-malic acid and 0.5 to 2 parts of isomaltulose. The roxburgh rose cactus polysaccharide, the sodium alginate and the sodium carboxymethyl cellulose jointly act on the sacha inchi protein, hydrogen bonds and Van der Waals force are formed, protein degradation is slowed down, the slow release effect is enhanced, the bioavailability is improved, and the sacha inchi protein contains multiple amino acids and can assist muscle recovery; the whey protein powder and the konjaku flour are utilized, so that the raw materials are uniformly dispersed, the granularity is refined, and the brewing performance and the digestion and absorption efficiency are improved.

The invention discloses a metal plate capable of releasing negative ions and a processing technology. The invention belongs to the technical field of metal plates. The metal plate can continuously and stably release negative ions, can effectively improve the surrounding air environment and improve the air quality, and can reduce dust adsorption and bacterium breeding when applied to the fields of indoor decoration and the like. The processing technology is simple and easy to operate, different base layer metal plates and negative ion release layer materials can be selected according to actual requirements, and the method is suitable for various production scales and application scenes; the metal plate has the unique advantages that the appearance of the metal plate is similar to that of a common metal plate, the metal plate can be widely applied to decorative materials in the fields of buildings, furniture, vehicles and the like, the original design style cannot be greatly influenced, and meanwhile, the negative ion release function is added.

A water-reducing agent for coal-based solid waste concrete and its preparation method are disclosed. The water-reducing agent comprises 40-60 parts of a polycarboxylate-based main agent, 15-25 parts of a slump retainer, 10-20 parts of a crack-resistant reinforcing agent, 5-10 parts of a dispersing agent, 2-5 parts of a stabilizer, and 10-20 parts of deionized water. The slump retainer is a modified polyetheramine prepared by block copolymerization of ethylenediamine with ethylene oxide and propylene oxide; the crack-resistant reinforcing agent is a composite of nano-calcium carbonate and modified lignin sulfonate. This invention reduces the adsorption loss of the water-reducing agent by coal-based solid waste particles through the synergistic effect of the polycarboxylate-based main agent and the modified polyetheramine slump retainer, achieving a slump loss rate of ≤15% after 2 hours. The nano-calcium carbonate fills interfacial voids, and the modified lignin sulfonate alleviates hydration thermal stress, resulting in a lower 28-day drying shrinkage rate and higher crack resistance of the concrete. This invention solves the problems of poor adaptability, short slump retention time, and insufficient crack resistance of traditional water-reducing agents in high-volume coal-based solid waste concrete.

This invention discloses a zoned permeable reactive barrier (PRB) for groundwater denitrification using a combination of zero-valent iron / slow-release carbon and zeolite, and its operating process. The PRB's structure comprises: (1) a quartz sand water distribution zone; (2) Fe... 0 / C-Denitrifying bacteria reaction zone; (3) Zeolite adsorption zone. This invention uses a mixture of biomass slow-release carbon and artificial slow-release carbon as a slow-release carbon source, and adds zero-valent iron to construct Fe 0 The / C system, using a mixed denitrifying bacteria agent for rapid start-up, and a zoned permeable reactive barrier (PRB) operation process for groundwater denitrification have been developed. This includes: filling processes based on different media permeability coefficients, reaction zone packing material compatibility based on different slow-release rates, and operating parameters based on different groundwater nitrogen pollutant concentrations. This invention improves the adaptability of the PRB process to hydrogeological conditions, accelerates the start-up of the denitrification process, ensures denitrification effectiveness during the start-up phase, improves denitrification efficiency during operation, and extends remediation time.

The utility model provides a pilot plant for enhancing tail water denitrification through cooperation of a film-forming fungicide and slow-release carbon, and belongs to the technical field of denitrification devices. Comprising a reaction tank and a sedimentation tank which are communicated with each other, one side of the reaction tank is connected with an oxygen supply device, and the lower part of the reaction tank is provided with a water inlet; a first base is arranged at the bottom of the reaction tank, a power device is arranged in the first base, the power device is connected with the water inlet through a connecting pipe, and a second base is arranged at the bottom of the sedimentation tank; a stirring device is arranged in the reaction tank, a first water outlet is formed in one side, far away from the reaction tank, of the sedimentation tank, a second water outlet is formed in the bottom of the sedimentation tank, and the second water outlet is connected with the connecting pipe. According to the utility model, the stability of functional bacteria in the system can be well maintained, and the denitrification effect is improved; the operation process is simple, the manufacturing cost is low, and automatic operation can be achieved.

The invention discloses a silk fibroin microneedle transdermal patch suitable for psoriasis, the silk fibroin microneedle transdermal patch comprises a matrix layer and a microneedle layer, the microneedle layer comprises a base part and a needle body extending outwards from the base part, and the matrix layer and the base part are attached to each other; the matrix layer contains methotrexate and silk fibroin, and the mass ratio of methotrexate to silk fibroin in the matrix layer is (1-4): 10; the microneedle layer contains methotrexate sodium salt and silk fibroin, and the mass ratio of the methotrexate sodium salt to the silk fibroin in the microneedle layer is (0.2-2): 10. The silk fibroin microneedle patch applicable to psoriasis prepared by the invention can be used for effectively loading a drug and improving the percutaneous penetration of methotrexate, the drug onset concentration can be quickly reached at the initial stage of microneedle release, the methotrexate can be continuously and stably released subsequently, and the drug can be kept at relatively high concentration in vivo for a long time. Meanwhile, the microneedle transdermal patch avoids the first-pass effect of the liver and improves the bioavailability of methotrexate.