1552results about How to "Loose structure" patented technology

The invention discloses an organic cultivation medium and an application method thereof. The organic cultivation medium is formed by fermenting a mixture comprising organic wastes (comprising straws, animal manures and organic garbage), sludge soil (urban sludge and substrate sludge of rivers and lakes) and composite soil microorganism preparations. The organic cultivation medium can be applied to plant and crop planting, and can be mixed with microelements, water-retaining agents and root-growth accelerants according to proportions in accordance with the nutrition requirement characteristics of plants and crops to form organic soil with common soil, and then the organic soil can be arranged in a manual anti-leakage cultivation slot or a specific container cultivation system to cultivate crops, vegetables and fruits, flowers or Chinese herbal medicine plants, etc.

A process for puffing the culture medium of edible fungus, which is prepared from the twigs or the straw or stalk of agricultural crops includes such steps as pulverizing, proportionally mixing it with organic and inorganic auxiliaries, puffing and baking.

The invention discloses a method for preparing a cold-brewing tea by puffing at variable temperature and pressure differences, which comprises the following steps: (1) adding water to dry tea leaves or baked and rolled fresh leaves and allowing to stand at 4-10 DEG C; (2) freezing and then warming up for unfreezing; (3) repeating the step (2) twice to three times; (4) filling in a variable temperature and pressure difference airflow puffing tank, and heating with steam indirectly till the temperature reaches 90-130 DEG C, and then preserving the temperature for 3-10 min; reducing the pressure to 100 Pa from 0.12-0.25MPa within 60-180s; reducing the temperature to 70-85 DEG C; vacuuming and drying for 150-250 min to obtain the cold-brewing tea. In the process of tea leaves, the method can loosen the tissue structure of tea leaves, cause microcracks and break cells of the tea leaves and even organell of the tea leaves, thereby reducing the mass transfer resistance during extraction, realizing low-temperature, fast and high-efficiency extraction of the tea leaves, and providing technical support for the development of the cold-brewing tea.

The invention relates to a method for preparing titanium dioxide films for a dye-sensitized solar battery, comprising the following steps: (a) titanium dioxide sol with 1-10 wt percent of titanium dioxide, 5-10nm of grain size and 10-100mg/mL of concentration and titanium dioxide powder with 5-15 wt percent of titanium dioxide and 20-40nm of grain size are uniformly ground, 80-90 wt percent of pore-forming agent is added, and the obtained 100wt percent of mixture are grounded for 0.5-2 hours; (b) titanium dioxide slurry is coated on conductive glass and is dried for 5-15 minutes at 100-130 DEG C; and (c) the conductive glass coated with the titanium dioxide slurry is sintered for 0.5-2 hours at 450-500 DEG C; by adopting the method in the invention, the process is simple, the operation is easy, the preparation period is short, thereby being beneficial to industrialization; in addition, the photoelectricity conversion efficiency of the dye-sensitized solar battery assembled by the titanium dioxide films is high by adopting the method.

The invention provides a method for modifying white carbon black by adopting aliphatic polyoxyethylene ether and compounding the white carbon black with rubber and relates to the field of application of the aliphatic polyoxyethylene ether to white carbon black modification, hoping to achieve the aims of modifying the white carbon black under the condition of no VOC emission by adopting a cheap and available modifying agent and enabling the modified white carbon black to be well dispersed as filler in a rubber matrix. The modification method is characterized in that chemical bonding and physical adsorption effect are utilized for bonding the white carbon black with 1-100% by mass of the aliphatic polyoxyethylene ether, so that the modified white carbon black is prepared. Preparation steps are as follows: white carbon black suspension is prepared, temperature of the suspension is adjusted, the white carbon black is modified, and the modified white carbon black is dried. The modified white carbon black has the advantages that particle size is reduced and hydrophobicity is obviously improved. Meanwhile, the modified white carbon black can be compounded with multiple rubbers in multiple ways, the white carbon black is uniformly distributed in the prepared rubber/modified white carbon black composite material, and all the performances of the composite material can be obviously improved compared with rubber/unmodified white carbon black.

The invention aims at providing a pantoprazole sodium freeze-dried powder injection and comprises pantoprazole sodium and mannitol with the weight ratio of 1: 2 to 5. The invention is simple in formula and little in side effect; products prepared by the method are plump in appearance, good in complex solubility and excellent in quality with the adoption of an advanced freezing and drying process.

The invention discloses a multifunctional system for rainwater infiltration, collection and storage and purification of a sponge city.The system comprises a bioretention pond and water storage wells.Firstly, appropriate positions are selected for digging of a foundation pit of the bioretention pond and the water storage wells, and the portions, 5-10 cm away from the two sides of the bioretention pond, of the road surface are paved with opened vertical curb belts.The bioretention pond sequentially comprises a gravel covering layer, a vegetation planting soil layer, a biochar packing layer and a gravel drainage layer from top to bottom, and the periphery and bottom of the bioretention pond are both paved with anti-seepage thin film.An overflow pipe is laid on the gravel drainage layer, an upper end overflow opening is 5-10 cm higher than the gravel covering layer, and the lower end of the overflow pipe is connected with a municipal drainage pipe network.The system can be used at the places such as residential areas, schools, parking lots, parks and roads, not only can rainwater be stored, but also the content of pollutants such as nitrogen, phosphorus and heavy metal can be reduced, the purpose of recycling is achieved, city water logging is effectively relieved, and the rainwater use efficiency is improved.

The invention discloses a preparation method for a tea extract, belonging to the technical field of extraction of effective components of tea leaves. The preparation method comprises the following steps: firstly, carrying out low-temperature rapid freezing treatment on high-quality commercial tea leaves; then immediately crushing; then combining a high-voltage pulsed electric field (PEF for short) technology, an ultrasonic treatment technology and a low-temperature enzymolysis technology; and carrying out low-temperature extraction in a whole process. According to the preparation method for the tea extract, the loss of effective components, caused by high-temperature processing, is avoided, and the extraction rate of the effective components of the tea leaves is also improved. The process is simple and low in cost; the introduction amount of extraneous food additives, processing auxiliary agents and chemical substances is reduced; the natural nutritional ingredient and the flavor of the tea leaves are kept to the greatest extent, the low-carbon production is realized and the environment is protected.

This invention relates to production process of pucherite yellow ceramic pigment, which takes sodium silicate as raw material to coat silicon dioxide. It takes sodium silicate as silicon source, coat silicon dioxide on surface of pucherite. For the strong inertia of silicon dioxide, it be able to withstand 1000 deg high temperature, and keep bright-colored after annealing of 1000 deg. This invention can eliminate harm to human body and pollution to environment in the process of production, solve the problem of heavy metal content are overproof in the export ceramic product of our country.

The invention provides an efficient and quick cellulose nanocrystalline preparing method.According to the method, a cellulose raw material is pretreated with aqueous alkali and then subjected to acidolysis, and inorganic salt containing metal ions is added during acidolysis to serve as a promoter to promote acidolysis reaction.Reaction condition is mild and easy to control, raw materials needed by reaction are simple and easy to obtain, and the method can be widely applied to preparation of cellulose nanocrystalline from various cellulose raw materials.

The invention belongs to the technical field of carbide ceramics, and concretely relates to a high-entropy boron-containing carbide ultrahigh temperature ceramic powder and a preparation method thereof. The molecular formula of the ceramic powder is XCyBz, wherein X is at least two of Zr, Ti, Hf, V, Nb, Ta, Cr, Mo and W, y is equal to or more than 0.6 and less 1.0, z is more than 0 and equal to orless than 0.4, and y + z = 1. The ceramic powder has a single phase face-centered cubic structure. The preparation method comprises the following steps: carrying out ball-milling mixing on at least two metal powders and C powder, carrying out pressureless plasma sintering and crushing to obtain carbide powder, mixing the carbide powder with B2O3 powder and a carbon source, and then performing high temperature sintering and crushing to obtain the ceramic powder. The ceramic powder is a single-phase solid solution, has the face-centered cubic structure, and contains the boron element, so the ceramic powder integrates the high temperature resistance of carbides and the oxidation resistance of borides, and can be used to prepare an ablation and oxidation resistant high-entropy boron-containing carbide ultrahigh temperature ceramic block or composite material.

The invention discloses a novel method for preparing wheat bran dietary fibers by taking wheat bran as a raw material. The wheat bran dietary fibers are dietary fibers enriched with araboxylan and the content is more than 16.08%. The novel method takes the wheat bran as the raw material and sequentially comprises the following process steps: pre-treating the raw material; rapidly extracting with an alkaline solution; carrying out ethanol precipitation; adding water to suspend again and blasting by steam; hydrolyzing compound protease; hydrolyzing compound amylase; carrying out secondary alcohol precipitation; and sieving. The dietary fiber product has high wheat bran dietary fiber yield and dietary fiber purity, and also has high content of araboxylan and high content of soluble dietary fibers; the product has good functional properties including water binding capacity, viscosity and the like, and has a plurality of physiological functions of relaxing bowel, controlling blood glucose, lowering blood fat, adjusting human immunity and preventing colon cancer and the like, so that high-quality raw material guarantees are provided for widely applying the wheat bran dietary fibers to foods.

The invention provides a clindamycin phosphate freeze-dried powder injection, which is prepared by the steps that: clindamycin phosphate solution is added with NaOH and is freeze-dried, wherein, the weight ratio of clindamycin phosphate to the NaOH is between 12 and 18 to 1, and the preferred weight ratio is 16.5 to 1. The clindamycin phosphate freeze-dried powder injection has simple formula and less auxiliary materials, overcomes side effects due to the fact that the auxiliary materials are excessively added, and ensures that patients are safer for use.

The invention discloses a rocky side slope ecological greening cultivation matrix, belonging to the vegetation cultivating technical field. The components and weight percentages of compositions of components of the matrix are as follows: 22-57 percent of organic matter, 2-5 percent of turf, 1-2 percent of grass fiber, 37-72 percent of raw soil or doras, 0-2 percent of rice chaff, 0.02-0.08 percent of water retention agent, 0.04-0.07 percent of caking agent and 0.04-0.07 percent of fertilizer. The invention has a reasonable distribution of each component and harmonious functions. The substitution of organic matter, grass fiber and rice chaff with low price and high quality for turf lowers cost. The additive fertilizer is mainly the slow release nitrogen fertilizer and the phosphate fertilizer and potash fertilizer are synthesized and mixed of different contents according to the nutrition characteristic of pioneer plant combination. Capable of supplying nutrition in the long run and stably and being popularized and applied in rocky side slope ecological greening project, the invention is characterized in light weight, a loose structure, good moisture retention and nutrient preserving.

The invention discloses a filter stick flavor enhancing tea particle and a preparation method thereof. The preparation method for the filter stick flavor enhancing tea particle comprises the following steps of: smashing one or several of white tea, dark green tea, yellow tea, black tea, green tea, wulong tea, as well as waste tea dust and tea stems of the white tea, the dark green tea, the yellow tea, the black tea, the green tea, the wulong tea at the temperature of below 55DEG C; sieving to obtain fine powder of 120-200 meshes; adding aqueous solution of hydrophilic polymer binding agent into the obtained fine powder; evenly stirring to obtain an intermediate; pelletizing via a sieve of 20 meshes by a granulator; sieving to obtain particles of 20-60 meshes; and drying or carrying out air drying on the obtained particles at the temperature of 10-55DEG C until moisture is 6-14%. The tea particle consists of 97-99.5% of tea powder and 0.5-3% of hydrophilic polymer binding agent, and the hydrophilic polymer binding agent is cellulose ethers, natural polymer and derivants thereof or polypropylene-series synthetic polymers. The obtained particle has the advantages of good aroma keeping performance and big specific surface area. The particle is fully contacted with smoke to gradually elute particle surface tea aroma, and the internal tea aroma in the particle is gradually released to perform the action on enriching the cigarette aroma. Meanwhile, the particle post processability is good, the addition amount is easy to control, and the risk that the particle enters the mouth in a dust mode is eliminated.

The invention discloses three-dimensionalgraphene composite aerogel. High-molecular material nano fiber with a biomass polysaccharide structure is compounded with oxidized graphene through a surface electrostatic-force effect, and then the composite aerogelis prepared by utilizing hydrazine hydrate reduction and a method for high-temperature pyrolysis in an inert atmosphere. The invention further discloses a preparation method of the three-dimensionalgraphene composite aerogel. The method for preparing the three-dimensionalgraphene composite aerogel is simple, easy to operate, large in specific surface area, uniform in pore size distribution and good in electrical conductivity, and the chemical reactivity is improved.

The invention discloses a dining cabinet waste compost method taking germ bran as conditioner, belonging to waste resource utilization in the environment field. The method comprises the following concrete steps that: dining cabinet wastes are crushed and then germ bran is evenly mixed into the dining cabinet wastes with the ratio between the dining cabinet wastes and the germ bran of between 1:0.5 and 1:5; other conditioner or transformation promoter are added; the water content of the mixed materials is adjusted to between 55 and 65 percent, while C/N is adjusted to between 20:1 and 30:1 and pH is adjusted to between 7 and 8; meanwhile, the particle size of the materials is not more than 3 cm; and aerobic compost process is adopted to carry out compost treatment. Compared with the prior compost method, the compost speed of the method is faster by 3 to 10 days, and the method has less odor generation and nitrogen loss and stable final products; moreover, a plurality of products can be made according to different requirements, thereby saving a large amount of energy source and manpower.

The invention provides an anti-tumor polypeptide nano-drug as well as a preparation method and application thereof. The anti-tumor polypeptide nano-drug comprises amphiphilic anti-tumor polypeptides and acid responsiveness functional molecules coupled with the amphiphilic anti-tumor polypeptides; the amphiphilic anti-tumor polypeptides comprise hydrophilic anti-tumor polypeptides, enzyme responsiveness polypeptides and hydrophobic polypeptides. According to the anti-tumor polypeptide nano-drug prepared by the preparation method, the bottleneck that the common polypeptide drug is short in half-life period is overcome; therefore, the anti-tumor polypeptide nano-drug is a tumor immunotherapy polypeptide nano-drug which has dual responsiveness of a weak acid environment and protease on a tumorsite and is good in responsiveness, strong in stability, high in safety, high in bioavailability and good in anti-tumor function.

The invention provides high-flowability pregelatinized starch and a method for preparing the same by mechanical activation, which belong to the technical field of starch modification processing. The method comprises the following steps: uniformly mixing starch and a certain amount of flow aid in a high-speed mixer uniformly, pre-drying the starch by using heat generated in a high-speed mixing process, and controlling the water content in the starch to be lower than 15 percent; and placing the uniformly mixed materials in a ball mill containing a milling medium, well regulating the temperature for constant-temperature dissolution in water, performing mechanical activation for a certain time period, taking the starch out, and sieving the starch with a 80 to 100-mesh sieve. The method has the advantages of simple process and equipment, small investment, environmentally-friendly process, low production cost, easy product quality control and the like. The prepared product has the characteristics of high flowability, loose structure, uniform particles and precision control over pregelatinization degree and can be widely used in industrials and fields of foods, pharmaceuticals, chemicals and the like.

An application of waste brick in treating sewage is dislcosed, which features that the leftover of brick is mechanically broken to become the granular adsorbent of harmful element (P, etc) in sewage. Its advantages are high adsorptive ability and low cost.

The invention discloses a comprehensive utilizing method of sweet sorghum stalks belonging to the technical field of biomass energy and chemical industry. The method comprises the following steps of: 1) fermenting sweet sorghum stalks in a solid state and distilling the sweet sorghum stalks to obtain an ethanol solution and distillers' grains; 2) hydrolyzing the distillers' grains under an acidic condition; and carrying out solid and liquid separation to obtain an xylose solution and an acidolysis slag; 3) washing the acidolysis slag by using water as an enzymatic substrate; adding an enzymolysis buffer solution; adding enzyme to carrying out enzymolysis; and then carrying out solid and liquid separation to obtain an enzymolysis mixed solution and enzymolysis xylogen; and 4) inoculating the enzymolysis mixed solution into yeast and fermenting the enzymolysis mixed solution to generate an ethanol solution. According to the invention, a new way is found for utilizing the distillers' grains; and xylose with high value added is obtained; meanwhile, the cellulose content and cellulose accessibility in the acidolysis slag are increased so that high conversion rate of cellulose enzymolysis and saccharification is realized. By using the method disclosed by the invention, the utilization rate of the lignocellulose raw material with high sugar content is increased, the ethanol yield per unit crop is increased, and the production cost of the cellulose ethanol is reduced.

The invention discloses an aroma-increasing cigarette column applicable to a low-temperature cigarette. The aroma-increasing cigarette column comprises the following components in parts by weight: 100 parts of tobacco particles, 0.05 to 2.0 parts of tobacco essence, 1 to 15 parts of a heat conducting component, 1 to 20 parts of a binding agent, and 1 to 20 parts of an aromatic plant, wherein the aromatic plant is selected from one or more of a flowery aromatic plant, a spicy aromatic plant and a medicinal aromatic plant. The aroma-increasing cigarette column applicable to the low-temperature cigarette provided by the invention is in an integrally cylindrical shape or a disc shape; the size is slightly smaller than that of a tobacco material filling cavity of an existing low-temperature cigarette smoking tool, so that a tobacco material is easy to add and easy to remove; a large number of pores are formed in the aroma-increasing cigarette column, so that a cigarette is easy to smoke; meanwhile, the heating area and the heating uniformity of a smoking material can be improved; smoke is formed quickly under a relatively low temperature; the cigarette column contains the heat conducting component, so that heat conducting in the cigarette column can be accelerated greatly, and the heating uniformity is favourably improved and the smoke is formed quickly.