20results about How to "Improve absorption and utilization" patented technology

This invention discloses a Cu2O / Cu3VO4 heterojunction catalyst, its preparation method, and its application in the photocatalytic reduction of CO2 to multi-carbon products, belonging to the field of catalyst materials technology. The preparation method includes: dissolving a copper source and a vanadium source in water to obtain a solution; mixing the solutions and adjusting the pH to 5-8 to obtain an initial solution; dispersing the solid from the initial solution after centrifugation in a mixture of ethylene glycol and water; and performing a hydrothermal reaction at 150-200℃ for 8-12 hours; washing and drying the reactants, and then calcining them at 500-600℃ for 2-5 hours under an inert atmosphere to obtain the Cu2O / Cu3VO4 heterojunction catalyst. In this catalyst, Cu2O and Cu3VO4 form a closely contacted heterojunction structure, enabling efficient separation of photogenerated electrons and holes under a built-in electric field and enhancing the absorption of visible light. Under visible light irradiation, this catalyst can reduce CO2 to multi-carbon products such as CO, CH4, C2H4, and C2H6, with an electron selectivity of up to 79% for the C2 products. The preparation process of this invention is simple and low-cost, and the resulting catalyst has broad application prospects in the field of photocatalytic CO2 reduction.

The invention relates to the technical field of fertilizer preparation, and particularly discloses a modified flotation phosphate tailing-based composite calcium magnesium phosphate fertilizer and a preparation method thereof, and the composite calcium magnesium phosphate fertilizer is prepared from modified flotation phosphate tailings, dolomite, limestone, an activator, a binder, a magnesium supplement conditioner and water. The flotation phosphate tailings are deeply modified by adopting a composite pretreatment liquid synergistic activation-gradient composite modification process, so that the effectiveness of nutrients such as phosphorus, calcium and magnesium in the flotation phosphate tailings and the environmental safety are remarkably improved; and through the raw material compounding design of calcium and magnesium source collaboration, gradient magnesium supplementation and conditioning synergism, quick-acting and long-acting collaborative supply of nutrients and a soil improvement function are realized. The flotation phosphate tailings are used as main raw materials, the technological process is simple, energy consumption is low, the prepared composite calcium magnesium phosphate fertilizer is balanced in nutrient, lasting in fertilizer efficiency and excellent in physical performance, and unification of solid waste recycling, product high value and production greenization is achieved.

This application relates to the field of solar cell technology, and more particularly to a solar cell and its fabrication method, and a photovoltaic module. The solar cell includes a silicon substrate, a patterned back-side doped layer, and a back-side passivation antireflection layer. The silicon substrate includes a back side and a front side disposed opposite to each other. The back-side doped layer is partially disposed on the back side, and the area where the back-side doped layer is disposed is a doped region. The area on the back side other than the doped region includes a back-side light-trapping region, which has multiple top-etched light-trapping structures, and the bottom surface of the light-trapping structures is located on the side closer to the front side. The back-side passivation antireflection layer is disposed on the side of the back-side doped layer facing away from the silicon substrate and on the back-side light-trapping region. The solar cell of this application utilizes top-etched light-trapping structures to enhance the back-side's ability to absorb and utilize light while also achieving a passivation effect, thereby effectively improving the performance of the solar cell.

The invention relates to the photovoltaic field, and provides a back contact battery and a manufacturing method thereof, a laminated battery and a photovoltaic module, and the back contact battery comprises a battery substrate which is provided with a first surface and a second surface which are opposite to each other; the isolating membrane is positioned on the first surface; the isolating membrane comprises at least two isolating units, the surface, far away from the first surface, of each isolating unit comprises a first area and a second area surrounding the first area, each isolating unit comprises a first part located in the first area and a second part located in the second area, the first part is provided with a groove sunken towards the battery substrate, and the edge, far away from the first part, of the second part is fluctuant; and an electrode on the second surface. The invention is at least beneficial to improving the light absorption and utilization rate of the back contact cell by means of the isolating membrane.

The invention discloses a Cu2O / Cu3VO4 heterojunction catalyst, a preparation method of the Cu2O / Cu3VO4 heterojunction catalyst and application of the Cu2O / Cu3VO4 heterojunction catalyst in photocatalytic reduction of CO2 into a multi-carbon product, and belongs to the technical field of catalyst materials. The preparation method comprises the following steps: dissolving a copper source and a vanadium source in water to obtain a solution, mixing, and adjusting the pH value of the solution to 5-8 to obtain an initial solution; dispersing a solid obtained by centrifuging the initial solution into a mixed solution of ethylene glycol and water, and carrying out a hydrothermal reaction at 150-200 DEG C for 8-12 h; and washing and drying reactants, and calcining the reactants in an inert atmosphere at 500-600 DEG C for 2-5 hours to obtain the Cu2O / Cu3VO4 heterojunction catalyst. In the catalyst, Cu2O and Cu3VO4 form a close-contact heterojunction structure, so that efficient separation of photo-induced electrons and holes can be realized under the driving of a built-in electric field, and absorption of visible light is enhanced. Under the irradiation of visible light, the catalyst can reduce CO2 into CO, CH4, C2H4, C2H6 and other multi-carbon products, and the electron selectivity of the C2 product can reach 79%. The preparation process is simple, the cost is low, and the obtained catalyst has a wide application prospect in the field of photocatalytic CO2 reduction.

This invention discloses a lactobridged protein-derived calcium chelating peptide and its applications, belonging to the field of bioactive small molecule peptide technology. The calcium chelating peptide provided by this invention is safe and non-toxic, exhibiting better physicochemical activity compared to traditional calcium supplements. Its calcium chelating capacity reaches over 419.36 μg / mg, and it can promote calcium transport in the Caco-2 cell monolayer, thereby improving calcium absorption and bioavailability in the human body, making it suitable for use as a calcium supplement. This invention can develop a new protein source for calcium supplements and makes a significant contribution to the high-value utilization of dairy products.

This utility model relates to the technical field of fruit tree fertilization equipment, specifically to an arc-shaped trenching fertilizer applicator, comprising a body with a fertilizer storage bin mounted on it; it also includes an arc-shaped drive mechanism and a conveying mechanism, the arc-shaped drive mechanism being connected to a trenching blade assembly and a soil return mechanism; the arc-shaped drive mechanism drives the trenching blade assembly and the soil return mechanism to move relative to the body along an arc-shaped fertilization line; the conveying mechanism is connected to the fertilizer storage bin and is used to output fertilizer from the storage bin through a discharge port; the discharge port is located between the trenching blade assembly and the soil return mechanism. The arc-shaped trenching fertilizer applicator proposed in this utility model allows the body to maintain linear movement while performing circular fertilization around each tree, thus eliminating the need to increase the machine's movement distance and bringing the fertilization line closer to the trees, avoiding ineffective fertilization and improving fertilizer absorption and utilization.

This invention discloses an organic trace element complex for lactating dairy cows, comprising the following components in parts by weight: 40-70 parts of hydroxymethionine complex, 0.1-0.2 parts of sodium iodide, 30-45 parts of yeast selenium, 0.1-0.2 parts of cobalt sulfate, 10-25 parts of synergist, and 5-10 parts of carrier. This invention also discloses the preparation method and application of the above-mentioned organic trace element complex. When used in lactating dairy cows, the various hydroxymethionine complexes can effectively pass through the rumen to the small intestine and be absorbed through amino acid channels, meeting the needs of dairy cows for various trace elements during lactation. The synergistic effect of the various hydroxymethionine complexes and the synergist can improve the lactation performance of dairy cows, increase milk production, enhance the body's resistance, significantly reduce the incidence of mastitis and hoof diseases, and alleviate ketosis.

This invention relates to the field of intelligent fertilization technology, and discloses an organic fertilizer application method and system. The method includes: acquiring crop nutrient requirement data, soil nutrient supply data, and nutrient supply data and mineralization characteristic parameters of candidate organic fertilizers for a target field; performing dynamic nutrient balance analysis on the crop nutrient requirement data and soil nutrient supply data to obtain nutrient demand gap data; based on the mineralization characteristic parameters and soil environmental factors in the soil nutrient supply data, deducing the release rate and cumulative release amount of nutrients in the candidate organic fertilizers as they transform into available forms over time, to fit the nutrient release dynamic curve data of the candidate organic fertilizers; performing spatiotemporal matching analysis on the nutrient demand gap data and the nutrient release dynamic curve data to determine the optimal application rate and timing; adapting and adjusting the input amount and application time of the candidate organic fertilizers; determining the specific fertilization schedule and integrating it into an organic fertilizer application scheme. This invention can improve the efficiency of precise organic fertilizer application.

The present invention discloses a sorghum black rice nutritious food and a preparation method and application thereof, and relates to the technical field of functional nutritious food, the sorghum black rice nutritious food comprises the following components by weight: 30%-60% of sorghum black rice polysaccharide, 15%-40% of compound prebiotics, 10%-25% of a cereal matrix, 3%-8% of a natural adhesive and 0.5%-5% of a flavor regulator. Through the synergistic effect of the sorghum black rice polysaccharide in a specific ratio and the composite prebiotics composed of the xylooligosaccharide and the inulin, the regulation capability on intestinal flora and the improvement effect on the intestinal barrier function are remarkably improved; the technical bottlenecks of low extraction efficiency, large component loss and single product taste and dosage form in the prior art are solved, and the finally prepared nutritional food not only has various dosage forms and high absorption and utilization rate, but also shows remarkable multifunctional application value in the aspects of prevention and adjuvant treatment of metabolic syndrome.

This invention provides a traditional Chinese medicine compound preparation for treating vaginitis and its preparation method. The raw materials of the traditional Chinese medicine compound preparation include: 8-12 parts of Callicarpa macrophylla, 8-12 parts of Cnidium monnieri, 3-6 parts of Astragalus membranaceus, 3-6 parts of Sophora flavescens, 3-6 parts of Stemona japonica, 3-6 parts of Kochia scoparia, 3-6 parts of Saposhnikovia divaricata, and 1-2 parts of Gleditsia sinensis. The preparation method is as follows: S1, the raw materials such as Cnidium monnieri are cut into small pieces, the small pieces are expanded under high pressure, and then pulverized to obtain expanded powder; S2, the expanded powder is enzymatically hydrolyzed to obtain enzymatic hydrolysate, then glucose and peptone are added and mixed, and mixed fermentation bacteria are inoculated and cultured by shaking to obtain mixed culture solution; S3, the mixed culture solution is percolated and extracted, the percolate is collected, filtered, and concentrated to obtain compound drug, which is then used to prepare a wash or suppository to obtain the target traditional Chinese medicine compound preparation. The traditional Chinese medicine compound preparation of this invention mainly uses Callicarpa macrophylla and Cnidium monnieri, and works synergistically with Astragalus membranaceus, Sophora flavescens, Stemona japonica and other raw materials to effectively inhibit pathogenic bacteria such as Staphylococcus aureus that cause vaginitis, and can also regulate the vaginal environment to effectively treat vaginitis.

The application discloses a glyphosate herbicide composition, which comprises an active ingredient glyphosate, a phosphorus-containing additive, amino acids, an auxiliary agent and other substances. The herbicide composition has a synergistic effect compared with single glyphosate herbicide and glyphosate and phosphorus-containing additive combined herbicide.

The invention relates to the technical field of biological medicine, and particularly discloses a preparation method of a collagen and anti-propionibacterium acnes gamma protein combined preparation, and the preparation method of the collagen and anti-propionibacterium acnes gamma protein combined preparation comprises the following steps: preparing anti-propionibacterium acnes gamma protein; adding water into the anti-propionibacterium acnes gamma protein and the recombinant III-type collagen, stirring and mixing, adding glycerol and a neutralizing agent, and mixing to obtain a uniform solution; the preparation method comprises the following steps: dispersing carbomer with water, adding a preservative and a humectant, mixing, finally adding the uniform solution, and mixing to obtain the required collagen and anti-propionibacterium acnes gamma protein combined preparation. The combined preparation prepared by the method can be used for effectively treating acnes, is remarkable in curative effect, does not generate drug resistance, is short in treatment cycle, can quickly eliminate skin damage, promote cell growth and adhesion and repair skin barriers, and does not generate new rash after healing.

This application relates to the field of solar cells, disclosing perovskite materials, perovskite layers, their preparation methods, perovskite solar cells, and photovoltaic modules. The perovskite material has a band gap of 1.65 eV to 1.75 eV, and its chemical formula is ABX3, where A is an A-site cation, B is a B-site cation, and X is an X-site anion. The elements corresponding to the X-site anion include iodine, bromine, and chlorine. In the perovskite material, the mass percentage of bromine is 0.0001% to 0.0012%, and the mass percentage of chlorine is 0.0005% to 0.0020%. The perovskite material provided in this application, while meeting the wide band gap requirement, helps to avoid the formation of bromine-rich phases, thereby effectively preventing the separation of bromine and iodine phases and ensuring that the perovskite layer prepared using this material has high structural stability.

This invention provides a glycosylated peptide chelated iron pyrophosphate supplement, its preparation method, and its application. The raw materials for preparing the glycosylated peptide chelated iron pyrophosphate supplement include glycosylated peptides, iron pyrophosphate, and a solubilizer. The glycosylated peptide is a β-glucan-grafted casein phosphopeptide, and the solubilizer is sodium pyrophosphate. The glycosylated peptide chelated iron pyrophosphate supplement of this invention exhibits good water solubility, color stability over a wide pH range, coexistence with nutrients such as vitamin C and oils, high iron loading capacity, good stability in gastric juice, sustained iron release in simulated intestinal fluid, and high iron absorption and utilization rate, significantly improving anemia in iron-deficiency anemia mice. The excellent absorption performance and superior physicochemical properties of the glycosylated peptide chelated iron pyrophosphate supplement of this invention make it a potential candidate for widespread application in the iron supplement market.

The present disclosure relates to the photovoltaic field, and provides a photovoltaic cell and a manufacturing method thereof, a laminated cell, and a photovoltaic module, the photovoltaic cell comprising: a substrate having a first surface side and a second surface side opposite to each other in a first direction; the first surface side comprises a first area and a second area surrounding the first area, and the first area comprises a third area and a fourth area which are alternately arranged in the second direction; the second surface side comprises a fifth area and a sixth area surrounding the fifth area, and the fifth area comprises a seventh area and an eighth area which are alternately arranged in the second direction; the first doped conductive part is positioned in the third region; the first passivation layer is located in the second region; the second passivation layer is located in the sixth region; the tunneling layer is located in the seventh region; and the second doped conductive part is positioned on one side, far away from the substrate, of the tunneling layer. The present disclosure at least facilitates reduction of electric leakage in an edge region in a photovoltaic cell.

This invention discloses a portable breakwater and a combined breakwater device based on wave energy power generation, aiming to solve the problems of traditional floating breakwaters, such as limited wave energy conversion methods, low energy utilization, complex structure, and limited operating environments. The portable breakwater of this invention includes an upper floating body, a lower floating body, a first power generation component, a second power generation component, and an energy storage component. The first and second power generation components are disposed within the upper floating body, and the energy storage component is disposed within the lower floating body. The first and second power generation components are electrically connected to the energy storage component. The energy of the wave impact is converted into electrical energy by the first power generation component, and the energy of the portable breakwater floating in the waves is converted into electrical energy by the second power generation component, enabling the breakwater to absorb wave energy more comprehensively and improving energy absorption and utilization efficiency.

The application provides a compound bone health composition containing astragalus polysaccharide and polypeptide and a preparation method and application thereof, and belongs to the technical field of biological medicine. The composition is prepared by compounding astragalus polysaccharide and collagen polypeptide, the astragalus polysaccharide is prepared by high-pressure pulse electric field combined with low eutectic solvent ultrasonic extraction, and the collagen polypeptide is prepared by compound microbial fermentation, step-by-step enzymolysis and purification. The astragalus polysaccharide and the collagen polypeptide have a significant synergistic effect, the astragalus polysaccharide has anti-inflammatory and antioxidant effects and optimizes the repair microenvironment, and the collagen polypeptide provides repair raw materials and promotes tissue regeneration. The composition can efficiently promote the repair of joint movement injury, can improve the chondrocyte activity, can remove active oxygen and can inhibit the secretion of inflammatory factors. Cell experiments and zebra fish animal experiments show that the composition has excellent repair effect, the bone health product prepared based on the composition also has good repair performance, and has important clinical value and market prospect.

This invention belongs to the field of traditional Chinese medicine, specifically relating to an enzyme-bacterial symbiotic fermentation compound composition for improving sleep and its preparation method. This invention discloses an enzyme-bacterial symbiotic fermentation compound composition for improving sleep, the active ingredients of which are prepared by fermentation of the following raw materials in parts by weight using a compound microbial agent: 10-30 parts of Codonopsis pilosula, 10-30 parts of Astragalus membranaceus, 5-15 parts of Ziziphus jujuba, 10-20 parts of Poria cocos, 3-10 parts of Glycyrrhiza uralensis, 5-15 parts of Angelica sinensis, 5-10 parts of Citrus reticulata peel, 3-8 parts of Zingiber officinale, and 10-30 parts of Ziziphus jujuba seed; wherein the compound microbial agent includes lactic acid bacteria and yeast. Through the "enzyme-bacterial symbiotic fermentation" process, the compound medicinal materials undergo deep biotransformation using microbial enzyme systems, degrading large molecular effective components into small molecules, greatly improving the dissolution rate and human absorption and utilization rate of the active ingredients, thus enhancing and accelerating the efficacy of traditional prescriptions.

The invention belongs to the technical field of traditional Chinese medicines, and particularly relates to a traditional Chinese medicine fermentation composition for regulating androgen as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) mixing radix ginseng, rhizoma polygonati, cortex cinnamomi and fructus lycii, and crushing to obtain mixed powder; (2) adding water into the mixed powder to obtain a fermented material, simultaneously adding phytobacterium plantarum and bifidobacterium longum subsp. Longum into the fermented material, uniformly stirring, carrying out anaerobic fermentation, sterilizing after fermentation, and cooling to room temperature to obtain a fermented product A; (3) continuing to add bifidobacterium lactis and bifidobacterium animalis subsp.lactis into the fermentation product A, performing anaerobic fermentation, sterilizing and centrifuging after fermentation is finished, and taking supernate to obtain a fermentation product B; and (4) concentrating the fermentation product B under reduced pressure, drying and crushing. According to the present invention, the ingredients are simple and refined, the formula synergy is high, and the maximization of the androgen regulation effect is achieved by using the specific strain and the fermentation mode for the exclusive formula.