255results about How to "Easy access to raw materials" patented technology

The invention provides a preparation method of carbon quantum dots and belongs to the technical field of preparation of nano luminescent materials. The preparation method comprises the following steps: weighing forestry and agricultural residues, kitchen garbage and mixture of one or more of vegetables, fruits, grains, flowers and Chinese herbal medicines in a ratio of parts by weight of 1:(1-100):(0.5-100) as raw materials; pulverizing the weighed raw materials, sieving the pulverized raw materials, performing uniform mixing, and adding organic acid or strong base or weak base to the treatedmixed liquid; and performing ultrasonic treatment, hydrothermal treatment and centrifugal treatment to obtain a solution, putting the obtained solution after centrifugal treatment into a dialysis bag,and putting the dialysis bag in a beaker filled with distilled water to be subjected to dialysis treatment so as to obtain the carbon quantum dots. The yield of the carbon quantum dots provided by the invention is 50-90%, and the sizes of the prepared carbon quantum dots are 1-2nm; and compared with the existing preparation method of the carbon quantum dots, the preparation method provided by theinvention has the advantages that the preparation process is simple, the raw materials are easy to obtain, and the preparation method is environmentally friendly and harmless.

The invention discloses a device for seeding directly and culturing arabidopsis thaliana in water and the application thereof. The device comprises an open container; a supporting flat plate is arranged in the open container; one or more small holes are disposed on the supporting flat plate; a hollow pipe is inserted in each small hole; solid culture medium is filled in each hollow pipe; water or nutrient solution is filled in the open container; the supporting flat plate is arranged above the level of the water or the nutrient solution; the upper end of each hollow pipe is arranged above the supporting flat plate; and the lower end of each hollow pipe is inserted in the water or the nutrient solution. The device is used for seeding directly and culturing the arabidopsis thaliana in water. The method and the device are simple, are easy to obtain the raw materials and can obtain a large number of plant organs such as roots, stems and leaves used for the biochemical and physiological research.

The invention discloses an ultra-supercritical martensite heat resisting cast steel original austenite grain size display method, and belongs to the technical field of smelting metallographic structure sample analysis and inspection. The method comprises the steps that 1, austenitizing heat preservation is performed on a sample, wherein the temperature of a high-temperature furnace is increased to 1100 DEG C to 1150 DEG C, the sample is placed in the furnace for heat preservation, the temperature of the sample is quickly lowered to 800 DEG C in the furnace, heat preservation is performed, and then the temperature is lowered to the room temperature; 2, metallographic sample cutting is performed, wherein oxidation and decarbonization portions on the surface of a metallographic sample, with the specification of 15*15 mm, of the sample material processed through heat treatment are removed, and metallographic sample grinding and polishing are performed, wherein the surface of the sample is washed clean, and the sample is placed on a polishing machine to be polished; 3, a corrosive agent is prepared, wherein the volume ratio of nitric acid to alcohol is (6-10):(94-90), and chemical corrosion is performed, wherein the polished surface of the sample is upwards placed in a corrosive solution to enable the solution to cover the surface of the sample, and then the sample is taken out after being stood for 15-30 minutes on the room temperature condition; 4, grain size observation and statistics are performed, wherein a metallograph is taken for the sample.

The invention relates to an artificial core containing controllable and movable fluid, and a manufacturing method of the artificial core. The manufacturing method mainly comprises the following steps: firstly, evenly stirring quartz sand, traditional epoxy resin cement and sub-nanoscale powder cement, wherein the median particle diameter of the sub-nanoscale powder cement is within the range from 0.7 to 1.0mu m, and the sub-nanoscale powder cement is formed by tricalcium silicate, dicalcium silicate, tricalcium aluminate and crystallized calcium sulfate according to the mass ratio of (0.20-0.25) to (0.30-0.35) to (0.25-0.35) to (0.20-0.30); putting the mixture into a cylindrical steel mould, pressurizing, and drying at high temperature to obtain the artificial core. Due to the change of proportions of two types of mixtures, the artificial core has better similarity with the natural core in the macroscopic aspects such as porosity and permeability, and the distribution proportion of the movable fluid is changed within the specific range on the basis that different levels of pores in the artificial core reach the specific proportion; furthermore, the artificial core is higher in accuracy, thus meeting the experimental demands such as oil field three-mining chemical flooding optimization, and microscopic use law.

The invention provides a perovskite-type battery based on a carbon counter electrode and a preparation method thereof. The perovskite-type battery includes a conductive glass substrate, a TiO2 compact layer, a semiconductor nano porous thin film, a perovskite-type light-absorption agent thin film and a conductive carbon thin film, which are sequentially connected in parallel. The perovskite-type battery based on the carbon counter electrode is reasonable and compact in structure, easily obtainable in raw material and low in cost. The invention also provides the preparation method of the perovskite-type battery based on the carbon counter electrode. The method is simple and easy to realize and capable of realizing industrial production of the perovskite-type battery based on the carbon counter electrode.

The invention belongs to the technical field of polyester modified aqueous acrylic resins, and discloses a polyester modified aqueous acrylic resin, a preparation method thereof, and an application thereof in an aluminums section finishing varnish. The polyester modified aqueous acrylic resin is prepared from, by mass, 8-15 parts of unsaturated polyester, 40-55 parts of an acrylate monomer, 28-35 parts of a hydroxyl group-containing acrylate monomer, 6-8 parts of a carboxyl group-containing monomer, 1-3 parts of an initiator and 55-75 parts of a cosolvent. The invention also provides the preparation method of the polyester modified aqueous acrylic resin. The unsaturated polyester and the acrylate chain segment in the polyester modified aqueous acrylic resin have multiple phenyl rings and annular structures and have high refractive index, so the polyester modified aqueous acrylic resin has high glossiness; the unsaturated polyester chain segment adopting an alcohol and acid condensed ester group as a main chain has large toughness, so the prepared coating has excellent impact resistance; and the polyester modified aqueous acrylic resin has high cross-linking active sites and high permeability, and is especially suitable for being used in the aluminums section finishing varnish.

The invention discloses a wadding wire composite filter stick for cigarettes and relates to a filter stick is compounded in the method that a wadding wire filter element and an acetate fiber filter element are wrapped in the same piece of outer ring forming paper. The wadding wire filter element made of a wadding wire material is prepared by taking paper for cigarettes as a raw material through embossing and cutting, the wrinkle depth of a wadding wire is 100 to 1000 microns, the thin wire of the wadding wire is 0.1 to 1.5 mm in width and 10 to 30 mm in length, and the density of the filter strip of the wadding wire is 1 to 3 g / cm<3>; the acetate fiber filter element or the wadding wire filter element can be individually wrapped with inner ring forming paper. The wadding wire composite filter stick can be prepared into a wadding wire composite filter tip, and the wadding wire filter element is assembled at a near cigarette tobacco end. According to the invention, the wadding wire is formed disorderly, a main stream smoke passage adopts a curvilinear style, the better filtering effect of the wadding wire composite filter stick is better than that of a conventional paper filter stick, quality control of resistance to suction and hardness are superior to that of other paper filter elements, and the application space of paper material filter sticks in the field of filter tips can be expanded.

The invention discloses a compound high-temperature acidizing corrosion inhibitor based on pyridine quaternary ammonium salt. The compound high-temperature acidizing corrosion inhibitor is prepared from components in parts by weight as follows: 20-30 parts of a corrosion inhibitor main agent, 2.0-2.5 parts of a synergist, 0.2-1.0 part of a dispersing agent, 0.5-1.0 part of propargyl alcohol, 0.2-1 part of an emulsifier, 2.5-6.0 parts of triethanolamine, 0.8-1.0 part of a surfactant and 60-70 parts of a solvent, wherein the corrosion inhibitor main agent is the pyridine quaternary ammonium salt prepared from 3-picoline and benzyl chloride through a reaction; the synergist is a mixture of potassium iodide, antimonous oxide and antimony trichloride in a weight ratio being (2-3):(1-2):(1-2). According to the compound high-temperature acidizing corrosion inhibitor based on the pyridine quaternary ammonium salt, the requirement of oilfield acidizing construction at the temperature of 120-160 DEG C is met, a corrosion inhibitor formula which is stable in property and good in corrosion inhibition performance, facilitates site construction and has cost advantage is provided, and the corrosion inhibitor has the characteristics that compatibility with commonly used acidizing additives in site, commonly used imidazoline corrosion inhibitors and other types of quaternary ammonium salt corrosion inhibitors is good, mixed use can be realized, construction is convenient and highly safe, no pollution is produced, transportation and storage are convenient, the cost is low and the like.

The invention discloses rapidly hydrated liquid guanidine gum. The rapidly hydrous liquid guanidine gum consists of the following components by weight percentage: 16-49.6% of disperse phase, 50-83.3% of dispersion media and 0.4-10% of suspension stabilizers. The invention also discloses a fracturing base fluid. The fracturing base fluid is prepared by mixing the rapidly hydrated liquid guanidine gum with water at a weight ratio of 1: (50-500). The rapidly hydrated liquid guanidine gum can be rapidly swollen to be sticky and has excellent suspension stability. The preparation method is simple and easily available in raw materials, thereby facilitating large-scale production.

The invention discloses a modified beta-cyclodextrin / chitosan compound, and a preparation method and an application thereof. The preparation method has the advantages of simplicity, easy obtaining of raw materials, and low synthesis cost. Beta-CD is adopted to load a medicine, and the beta-CD has external cavity hydrophilicity and inner cavity hydrophobicity characteristics, so the beta-CD can load multiple hydrophobic medicines, and a medicine loaded composite film has large space in the fields of medicine loading and slow release. Films with different transparencies can be made by using the compound through adjusting the molar ratio of chitosan (monomer) to the beta-CD in order to meet requirements of different medicinal positions; and the composite films made by using the modified beta-cyclodextrin / chitosan compound are transparent and flexible, have good biocompatibility and slow release effects, and have no toxic or harmful effects on human bodies.

A kind of preparation method of spring flower nutrient fertilizer, it is made of: plant ash powder, wheat straw powder, rapeseed cake powder, sorghum cake powder, sunflower seed powder, corn silk powder, honeysuckle powder, peanut shell powder, dried chicken manure, Dried rabbit dung, broad-leaved wood chips, bone meal, pine needle powder, Chinese beetroot powder, tea dry powder, green onion powder, Chinese prickly ash powder, the stated percentages are percentages by weight; the nutrient fertilizer cultivated by the invention is cheap, and the raw materials are easy to get, and the preparation and The preparation method is simple, and the various nutrients in the ingredients are rich in content, which promotes the rapid growth and development of the spring flower, strong growth and good disease prevention performance.

The invention relates to the technical field of biological detection, and specifically relates to a calibration product and quality control product for the mass spectrometry detection of vitamin D andmetabolite thereof, and a preparation method and applications thereof. The provided calibration product or the quality control product includes a matrix and one or more kinds selected from vitamin Dand metabolite thereof; and the matrix includes polysaccharide substances, protein substances, phospholipid, an electrolyte conditioning agent, a surfactant and a preservative. The matrix effects during sample detection can be effectively reduced by developing a matrix formula of the calibration product and quality control product for the mass spectrometric detection of the vitamin D and metabolite thereof; the calibration product including the provided matrix can realize the high accuracy of mass spectrometry detection systems of the vitamin D and metabolite thereof; and the quality control product including the provided matrix can guarantee the indoor precision of the mass spectrometry detection systems of the vitamin D and metabolite thereof.

The invention provides a preparation method of an activated zeolite molecular sieve supported titanium dioxide photocatalysis material. The method comprises the following steps: activating natural zeolite molecular sieve to obtain activated zeolite molecular sieve; and mixing and stirring the activated zeolite molecular sieve, tetrabutyl titanate, acetic acid, nitric acid and anhydrous ethanol, and carrying out ultrasonic treatment, stirring, ageing, drying and calcining to obtain the activated zeolite molecular sieve supported titanium dioxide photocatalysis material. The activated zeolite molecular sieve supported titanium dioxide photocatalysis material has larger specific surface area than an inactivated zeolite supported titanium dioxide material, and the specific surface area of the activated zeolite molecular sieve supported titanium dioxide photocatalysis material reaches 280.1 m<2> / g; the activated zeolite molecular sieve supported titanium dioxide photocatalysis material has better adsorption performance than the inactivated zeolite supported titanium dioxide material, and the adsorption rate of the activated zeolite molecular sieve supported titanium dioxide photocatalysis material reaches 94.7%; and additionally, the activated zeolite molecular sieve supported titanium dioxide photocatalysis material has high photocatalysis performance, and the photocatalysis degradation rate reaches 98.6%. The activated zeolite molecular sieve supported titanium dioxide photocatalysis material has wider aperture distribution than the inactivated zeolite supported titanium dioxide material.

The invention discloses a scale collagen polypeptide facial mask which consists of the following components: 1-20 parts by weight of scale collagen polypeptide powder, 0.5-3 parts by weight of a rhodiola rosea extract, 1-2 parts by weight of a seaweed extract, 3-6 parts by weight of glycerol, 1-4 parts by weight of olive oil, 1-3 parts by weight of pearl powder, 10-30 parts by weight of talcum powder, 10-30 parts by weight of a film-forming agent, 1-2 parts by weight of tween-80 and 0.10-1.2 parts by weight of an antiseptic. The facial mask disclosed by the invention has functions of nourishing skin and beautifying the face.

The invention provides Tibetan incense and a preparation method thereof. The Tibetan incense comprises a main material and auxiliary materials according to a mass ratio of 5: 3 to 5: 1; the main material is a mixture of elm bark powder and cypress powder, or the cypress powder; the auxiliary materials include Amomum tsao-ko, clove, Rhododendron parvifolium, cumin, cinnamon, costus root, elecampane, safflower, Melilotus suavcolen and Cinnamomum glanduliferum. The preparation method of the Tibetan incense comprises the following steps: crushing the raw materials of the main material and the auxiliary materials respectively by using a crusher, and then processing the crushed materials by using a filter, a vibrating screen and a screening machine to obtain the main material to be mixed and the auxiliary materials to be mixed; wetting the main material to be mixed and the auxiliary materials to be mixed with water, and sufficiently mixing and stirring by using a mixer; then preparing by using an incense making machine to obtain crude product Tibetan incense, cutting the crude product Tibetan incense and drying by using a drier to obtain the finished product. The Tibetan incense provided by the invention is pure and durable in fragrance, and has the efficiencies of tranquilizing the mind and promoting the intelligence, preventing flu and sterilizing.

The invention discloses a catalyst as well as a preparation method and an application thereof. The catalyst is characterized in that an anionic surfactant used as a template agent, a Keggin structural aluminum isopolyacid cation hybrid material prepared from an aluminum source is adopted, Keggin structural polyacid anions are introduced in the preparation process by adopting an impregnation method or an ion exchange method, washing and drying are carried out to prepare the catalyst. The catalyst comprises all components in parts by weight: 2-50 parts of Keggin structural aluminum isopolyacid cations, 2-20 parts of anionic surfactants and 96-30 parts of Keggin structural polyacid anions. The catalyst is high in oxidative desulfurization catalytic activity and high in recycling usability; therefore, the oxidative desulfurization catalyst is high in performance. The preparation method of the catalyst is simple, easy to operate and low in preparation cost.

The invention discloses a method for efficiently removing elemental mercury in flue gas. A metal selenized mineral is utilized as a demercuration medium, contains selenium-copper ores (CuSe), selenium-molybdenum ores (MoSex) and selenium-zinc ores (ZnSe) and is in contact with mercury in the flue gas, in a fixed bed reactor or a jet tower, and accordingly volatile gaseous elemental mercury in theflue gas is converted into stable solid mercury selenide; the natural reserve of the metal selenized mineral is large, synthesis is relatively easy, and metal selenized mineral has very high mercury adsorption capacity and adsorption rate. Therefore, the method has the advantages of high efficiency, low investment, simple, easy operation and the like and has wide market application prospects.

The invention discloses an efficient culture medium for pleurotus eryngii and a preparation method of the culture medium, and relates to the technical field of pleurotus eryngii culture media. The culture medium is prepared from 45-55 parts of tea dregs, 35-45 parts of cassava residues, 30-35 parts of sustained release granules, 20-30 parts of distillers' grains, 15-20 parts of oyster shells, 15-20 parts of amylase, 15-20 parts of protease, 10-15 parts of expanded vermiculite, 10-15 parts of soybean cakes, 5-10 parts of rice hull powder, 5-10 parts of bran and an appropriate amount of water. Accordingly, the nutritional ingredient content is high, the produced pleurotus eryngii is high in weight, rapid in growth, high in disease resistance, soft in pulp quality and good in taste.

The invention relates to a drink for vigorating qi and replenishing the blood and a preparation method thereof. The drink has the function of vigorating qi and replenishing the blood. The invention provides a drink with the functions of quenching thirst that common drinks have as well as vigorating qi and replenishing the blood. The drink is made from red date, sour jujube, astragalus root, licorice, white sugar or honey or glycoprotein and purified water. The preparation method comprises the following steps: first, the red date, the sour jujube, the astragalus root and the licorice are respectively put into cold water which are 15-30, 10-30, 10-30 and 15-36 times of weight of the red date, the sour jujube, the astragalus root and the licorice for decoction until boiling. After the four solutions are respectively condensed to 2 / 3 time of the original volume, then the four concentrated solutions are mixed together according to the following volume parts: 40-50 parts of red date juice, 40-50 parts of sour jujube juice, 8-15 parts of astragalus root juice and 2-12 parts of licorice juice. The mixture is added with a proper amount of the white granulated sugar or the honey or the glycoprotein, and filtered, bottled or sealed to prepare the drink. In the invention, the red date and other components which are beneficial to human in the healthcare components are effectively dissolved in human daily drinks, therefore, the drink achieves the efficacies of vigorating qi and replenishing the blood, moistening skin, improving physique and beautifying. The preliminary edible test proves that the drink has the functions of strengthening physique, improving physical strength, enhancing immunity of human cells if the drink is regularly drunk, and has the effects of disease resistance and aging resistance.

The invention discloses a mixed working substance containing N2O in an auto-cascade circulatory system. The working substance consists of 15-50% of a first group substance by mass fraction and a second group substance in balancing amount, wherein, the first group substance is N2O or a compound formed by N2O and one or more of ethane, trifluoromethane, hexafluoroethane, fluoromethane, carbon dioxide and ethylene. Compared with the prior working substance used for the auto-cascade circulatory system, the mixed working substance provided by the invention has the following advantages: the mixed working substance provided by the invention can effectively realize the refrigeration of a temperature range of 200-240K; the ozone depletion potential (ODP) of N2O (R744A) equals to zero, and the global warming potential (GWP) thereof is relatively low; and as N2O is a natural substance which can be easily obtained, and other refrigerants matched with N2O are reasonably priced, the use of the mixed refrigerant can reduce the cost for companies.

The invention relates to a new natural plant inorganic environment-friendly paint, comprising the following components in percentage by weight: 20.0%-50.0% of water glass, 4.0%-10.0% of silica solution, 2.0%-5.0% of condensed phosphate, 10.0%-25.0% of colored filler, 10.0%-25.0% of natural plant powder, 0.3%-0.7% of dispersing and wetting agent, 0.1%-0.2% of organic silicon defoamer, 0.1%-3.0% of thickening agent and 10.5%-20% of water. The invention also provides a preparation method of the new natural plant inorganic environment-friendly paint. According to the new natural plant inorganic environment-friendly paint and the preparation method thereof, the paint is endowed with the outer wall decoration and protection function, also has the feature of inorganic matter, is excellent in temperature-tolerance performance, meanwhile has the characteristics of being tasteless, green and environment-friendly, and is also waterproof and high in free-breathing performance; furthermore, the preparation method is simple in process, nonhazardous in production, green and environment-friendly, and applicable to large scale industrial production.

The invention provides a spongy soil and a preparation method thereof. The spongy soil comprises, by weight, 70 to 80 parts of an organic matrix, 5 to 10 parts of planting soil, 5 to 10 parts of a hydrophilizing agent and 5 to 10 parts of a water retaining agent. The spongy soil provided by the invention contains a plurality of elements, is comprehensive in nutrient composition, can meet demands of normal growth of plants and well overcomes the problem of severe shortage of planting oil in cities.

The invention belongs to the technical field of soil improvement, and discloses a tea acidified soil remediation bio-organic fertilizer and a preparation method thereof. The tea acidified soil remediation bio-organic fertilizer is prepared from the following components in parts by mass: 20 to 25 parts of biochar, 10 to 15 parts of plant ash, 10 to 15 parts of river sludge, 15 to 20 parts of earthworm powder, 8 to 10 parts of animal waste, 5 to 10 parts of calcium magnesium phosphate fertilizer, 5 to 8 parts of silkworm excrement, 5 to 8 parts of zinc oxide, 5 to 8 parts of montmorillonite, 1 to 3 parts of clay mineral, 1 to 3 parts of rice husk silicon alkali and 1 to 3 parts of bacillus amyloliquefaciens. The organic fertilizer disclosed by the invention can effectively improve the pH of soil and improve the yield and quality of tea leaves; meanwhile, cost is low, raw materials are easy to obtain, the manufacturing method is simple and convenient, and the fertilizer contains rich medium-trace elements and has a soil disinfection function. The soil conditioner can improve the physical and chemical properties of soil, mainly can adjust the pH value of the soil, prevent soil hardening, improve the granular structure of the soil, loosen the soil and increase air and moisture.

The invention discloses a Chinese medicinal formula for treating a heart disease, relating to the field of Chinese medicinal preparations. The formula is characterized by comprising 16 types of traditional Chinese medicines, including unprocessed rehmannia root, dangshen, asparagus, dwarf lilyturf root, figwort root, red-rooted salvia root, indian buead, thinleaf milkwort root-bark, Chinese angelica, Chinese magnoliavine fruit, platycladi seed, spina date seed, platycodon root, cinnabar, tuber fleeceflower stem and lotus plumule. The Chinese medicinal formula has the advantages of simple preparation, readily available raw materials, quick response, short treatment course and high curative rate; and moreover, a medicament disclosed by the invention is a pure Chinese medicinal preparation, does not have any toxic or side effect, and has a remarkable effect.

The invention discloses a preparation method of a thermal power generation carburization wear-resisting ball. The preparation method comprises the following process steps: firstly, casting a wear-resisting ball body casting, selecting the following raw materials in parts by weight: 2.2 to 2.6 parts of ferromanganese, 25 to 30 parts of scrap iron blocks, 0.4 to 0.7 part of a waste copper plate and 0.3 to 0.5 part of a slag forming constituent, putting the raw materials into a smelting furnace for desulfuration, transferring smelted liquid subjected to desulfuration into a medium-frequency induction furnace for continuous smelting and heat insulation, adding a spheroidizing agent which is 0.5 to 1.2 percent of the weight of the smelted liquid into the medium-frequency induction furnace for spheroidizing at the temperature of 900 to 960 DEG C, and pouring in a die to obtain the wear-resisting ball body casting. According to the preparation method, the wear-resisting ball body and a wear-resisting layer are respectively obtained by pouring twice, so that the wear-resisting ball is high in mechanical property and impact toughness; furthermore, most components in the thermal power generation carburization wear-resisting ball are conventional elements, so that the production cost is low, and the preparation method is convenient to popularize.

The invention relates to the technical field of down feather processing, and in particular relates to a high-efficiency cleaning agent for down feathers. The high-efficiency cleaning agent for the down feathers provided by the invention comprises the following raw materials in parts by weight: 12-15 parts of an LAS-ammonium salt, 6-12 parts of fatty alcohol polyoxyethylene ether, 6-10 parts of pelargonium hortorum, 6-10 parts of ethyl acetate, 3-7 parts of sodium dodecyl benzene sulfonate, 3-7 parts of citric acid, 4-8 parts of sophorolipid, 2-4 parts of trichloro ethylene, 4-6 parts of betaine, 2-3 parts of sodium laurate, 8-12 parts of citric acid thatch, 4-8 parts of cinnamomum porrectum leaves, 2-6 parts of cassia twig, 2-4 parts of gleditsia sinensis fruits, and 6-10 parts of a defoaming agent. The high-efficiency cleaning agent for the down feathers provided by the invention has good cleaning effects and thorough odor removal, does not damage the down feathers while cleaning andremoving odor, and can reduce breeding of bacteria after the down feathers are cleaned.

The invention relates to a method for making adhesive bandage plaster, which pertains to the field of medicine and pharmacology, wherein the functions of the plaster include activating blood circulation, removing stasis, diminishing inflammation and reducing pains. The invention realizes simple process for manufacturing, fitting for mass and small scale production, fine curative effect and non-toxic and side effects.

The invention relates to the technical field of cultivation of edible mushrooms and discloses a method for cultivating stropharia rugosannulata by using straws. The method comprises the following steps: selecting fresh and mildew-free maize straws as raw materials, putting the maize straws under the sunlight for drying the maize straws for 1-2 days, preparing a cultivation material, firstly carrying out complete insecticidal treatment, then heaping the cultivation material with moderate moisture as a trapezoid heap with width of 3m, height of 1.5m and unlimited length, wherein the surface of the heap is a flat surface; perforating holes from the top surface of the material heap down to the ground after the material is heaped; sowing seeds into the trapezoid heap in the step (3), sowing onehalf of mushroom strains into the trapezoid heap through the holes perforated in the top. According to the method for cultivating stropharia rugosannulata by using straws, the maize straws are ordinary crops and are low in cost and high in yield, so that the cost for cultivating the stropharia rugosannulata can be reduced; meanwhile, when the cultivation material prepared by drying the maize straws under the sunlight and then mixing the maize straws with other nutrients is used for cultivating the stropharia rugosannulata, the quality and the yield of cultivation can be greatly improved.

The invention relates to the technical field of preparation of nano negative electrode materials, in particular to a preparation method of Fe7S8@C nanorod materials applied to high performance lithiumion batteries. The method comprises the following steps: 1) preparing a Fe7S8 precursor by hydrothermal method; 2) obtaining a high-purity Fe7S8 nanorod by heat treatment; 3) performing organic layercoating on the prepared Fe7S8 by a solution method to prepare a Fe7S8@PDA nanorod; and 4) performing heat treatment on the prepared Fe7S8@PDA nanorod to carbonize the organic matter to obtain a Fe7S8@C nanorod, finally fabricating the obtained Fe7S8@C nanorod into a button cell, and performing electrochemical test. The invention has the advantages of simple formula, simple operation, good repeatability, high purity of the product, rich raw materials, environment-friendly type, regular material structure and good stability, and has high capacity and good rate performance as the negative electrode material.