45results about How to "Achieve high quality" patented technology

The invention relates to a microgrid multi-energy joint optimal scheduling method. The method includes: step 1, on the basis of force application conditions of energy supply equipment and operating states of energy storage equipment in different scenes, constructing a physical model of a multi-energy system; step 2, establishing unit mathematical models, including a wind power generator model, a photovoltaic power generation model, a micro-gas turbine model, a fuel cell model and an energy storage model, of the microgrid multi-energy system; step 3, in order to realize lowest comprehensive cost in system operation, constructing a microgrid multi-energy optimal scheduling model by taking DG operation constraints, system safety constraints and multi-energy coupling characteristics into comprehensive consideration; step 4, on the basis of reversed order dynamic planning, solving the microgrid multi-energy optimal scheduling model to obtain a microgrid multi-energy joint optimal operatingstrategy. By the microgrid multi-energy joint optimal scheduling method, operating demands in different scenes can be met, electricity-thermal coordinated optimal scheduling schemes are provided for operating of a comprehensive energy microgrid in different scenes, and high integral operating efficiency and high economic benefits are realized.

The invention discloses a pyroxylin lacquer with low smell, wherein the pyroxylin lacquer has no benzene hydrocarbon, and the lacquer formula includes 10 percent-25 percent by weight of at least one resin, 25 percent-55 percent by weight of at least one of alcohol ether solvent, ester solvent or alcoholic solvent, , 20 percent-50 percent by weight of at least one curing agent, plasticizer and additive, the pyroxylin lacquer of the invention uses non-benzene solvent, and ensure the superiority of pyroxylin lacquer per se, so as to effectively avoid environmental pollution produced in production, construction and using process of the benzene hydrocarbon, and health hazard to production operator and constructer.

The invention relates to a deep learning noise reduction method fusing bone vibration sensor and microphone signals. The deep learning noise reduction method comprises the following steps: enabling abone vibration sensor and a microphone to collect audio signals, and respectively obtaining a bone vibration sensor audio signal and a microphone audio signal; inputting an audio signal of the bone vibration sensor into a high-pass filtering module, and carrying out high-pass filtering; inputting the bone vibration sensor audio signal subjected to high-pass filtering or the signal subjected to frequency band widening and a microphone audio signal into a deep neural network module; and obtaining the voice after noise reduction through prediction by the deep neural network module. According to the deep learning noise reduction method fusing bone vibration sensor and microphone signals, signals of a bone vibration sensor and a traditional microphone are combined, and the strong modeling capability of the deep neural network is utilized to realize high human voice restoration degree and extremely strong noise suppression capability, and the problem of human voice extraction in a complex noise scene can be solved, and the target human voice is extracted, and the interference noise is reduced, and a single-microphone structure can be adopted to reduce the cost. In addition, the signals obtained after the frequency band of the bone vibration sensor audio signals is broadened can be directly used as output.

The invention provides a soil regulating agent for old ginseng land which comprises by weight ratio inhibiting agent 0.2-0.5%, actinomycete powder 15-25%, longeron powder 50-70%, calcium magnesium phosphate fertilizer 2-10%, slow release urea 5-15%, potassium sulphate 5-20%, calcium hydroxide 2-5%, trace element 0.1-2.5%. The advantages of the invent includes good applicability, easiness in use, and simplified preparation process.

The invention discloses a method for planting kiwi fruits. The method includes steps of selecting sandy lands with the pH (potential of hydrogen) of 5.5-6.5, leveling the sandy lands, then applying basic fertilizers to the sandy lands and forming ridges; digging pits in the ridges in a period from September to November, planting kiwi fruit seedlings in the pits, covering the pits with soil, tamping the soil and pouring sufficient root setting water; applying compound fertilizers after the kiwi fruit seedlings are cultivated for 2-3 months and irrigating the kiwi fruit seedlings; applying additional urea in two weeks before the kiwi fruit seedlings bloom, and irrigating the kiwi fruit seedlings; pollinating flowers after the kiwi fruit seedlings bloom; thinning fruits in 7-10 days after the flowers fade; pinching off young shoots of kiwi fruit plants in kiwi fruit planting procedures, preventing and treating diseases and insect pests, fighting against drought and draining flood. The method for planting the kiwi fruits has the advantages that the method is adaptive to growth of the kiwi fruits, the kiwi fruits can quickly grow, the kiwi fruit plants can bear large quantities of fruits, soil structures can be improved, and the obtained kiwi fruits are high in quality and high and stable in yield.

The invention relates to a modified polyvinyl chloride (PVC) drip tape applied to the filed of agricultural water-saving irrigation facilities. The formula of the PVC drip tape comprises carbon black, a plasticizer, a high molecular plasticizer (GZ), an anti-impact modifier, a lubricant, a processing accessory agent, a heat stabilizer, calcium carbonate (CaCO3), a coupler and PVC; the carbon black comprises medium color black and common color black; the PVC comprises the types of PVC-SG2, PVC-SG3, PVC-SG4 and PVC-SG5; the plasticizer comprises dibutyl phthalate (DBP) and dioctyl sebacate (DOS); the lubricant comprises a compound lubricant, i.e., a stearic acid, calcium stearate, chlorinated paraffin or oxidized polyethylene wax (OPE). The modified PVC drip tape has scientific and novel conception; the PVC drip tape has excellent comprehensive performance after modification treatment by using various modification accessory agents; and compared with the common PVC drip tape, the modified PVC drip tape has relatively low production cost and more remarkable advantages in price and performance, can reduce the consumption of gasoline resource and is more beneficial to the agricultural water-saving irrigation technology of China.

The microbial soil repairing improver is prepared with compounded bacteria preparation, soil leaching liquid, nutritive culture medium and trace element solution and through solid and liquid fermentation. The preparation process features that the bacteria strains separated from the soil and soil environment water and optimized alternate electric field biological engineering technology and plasmogamy technology is mixed with special nutritive culture medium, soil leaching liquid and trace element solution and the mixture is prepared into the microbial soil repairing improver via anaerobic fermentation. The microbial soil repairing improver contains active microbes, enzymes, amino acids, vitamins, organic acids, antioxidant matters and antibiotic matters, and is applied to soil to form excellent microecological environment beneficial to crop.

Provided are a bearing device for a wheel, in which circumferential play is reduced, which provides excellent workability in connection between a hub ring and an outer joint member of a constant velocity universal joint, in which fitting between the hub ring and the outer joint member of the constant velocity universal joint is stable, and which has excellent strength, and an axle module using the bearing device. An axially extending projection is formed on either of the outer diameter surface of a shaft section of the outer joint member and the inner diameter surface of a hole of the hub ring. The projection is press-fitted to the other in the axial direction to form a recess in the other by the press-fitting. By this, a recess/projection fit structure is formed, in which the entire regions of those portions of the projection and the recess at which they are fitted to each other are in intimate contact with each other. The hardness of at least that portion of the projection at which the press-fit starts is higher than that of a portion where the recess is formed. The difference in hardness in HRC is 20 or more.

The invention discloses a special-shaped hole machining method and a special-shaped hole and relates to the technical field of laser machining. According to the method, femtosecond or picosecond or nanosecond pulse laser is adopted, and a mode completely based on scanning galvanometer filling machining is provided. The method comprises the steps that firstly, a through hole smaller than the hole diameter requirement is machined so that gasification objects and fusion objects formed in the machining process can be discharged and re-coagulation objects are prevented from depositing; then, roughmachining of a special-shaped hole diffusion section is conducted; then, the laser focusing position is adjusted, broaching is conducted on the basis of a dust discharge through hole, and a cylindrical through hole meeting the hole diameter requirement is machined; and finally, the focus position is precisely adjusted, and the diffusion section is machined layer by layer. By means of the special-shaped hole machining method and the special-shaped hole, heat-induced defects such as recasting layers, microcracks, coating collapse and the like generated in the process that in the prior art, a special-shaped hole is machined, and in particular, the special-shaped hole is machined in a workpiece with the surface coated with a thermal barrier coating are avoided; and in addition, the shape and dimension precision of the special-shaped hole are improved.

The invention provides a method for planting Shatian pomelos. The method includes the following steps of a, orchard building and Shatian pomelo planting, b, hole enlarging and soil improving, c, rational application of fertilizer, d, pruning, and e, fruit bagging. According to the technical scheme, the quality of the Shatian pomelos is obviously improved, and the requirement for high quality pollution-free production is met.

The invention discloses a method for removing large-particle undigested and undecomposed organic matter and sand in anaerobic digestive liquid stage by stage and a method for preparing organic liquid fertilizer base fluid with the anaerobic digestive liquid without large-particle undigested and undecomposed organic matter and sand as the raw material.Plant fibers and other large-particle undigested and undecomposed organic matter separated after staged treatment, sand and other inorganic matter are used as initial raw materials of solid biogas manure or soil conditioner, and anaerobic digestive liquid biogas residues and biogas slurry which are obtained through staged treatment are used as initial raw materials of the organic liquid fertilizer base fluid.By means of the method, the plant fibers and other large-particle undigested and undecomposed organic matter, sand and other inorganic matter can be removed from the anaerobic digestive liquid, an organic liquid fertilizer base fluid product is prepared by means of the anaerobic digestive liquid with the large-particle undigested and undecomposed organic matter, sand and inorganic matter removed, and accordingly the bottleneck problem about resource reuse of the anaerobic digestive liquid is solved.

The invention relates to the processing field of the production process of biological organic fertilizers, and particularly relates to a silkworm manure biological organic fertilizer and a preparation method thereof. According to the technical scheme, the silkworm manure biological organic fertilizer comprises the following ingredients in parts by weight: 60 to 80 parts of fermented silkworm manure, 10 to 20 parts of fermented tree leaves, 30 to 50 parts of fermented rice bran, 1 to 3 parts of fermented animal excrement and 15 to 20 parts of rice washing water. The silkworm manure biological organic fertilizer has characteristics that simplicity in production is realized, the cost is low, the fertilizer efficiency is high, by adding the fermented silkworm manure, the fermented tree leaves and the fermented rice bran, the soil can be regulated, the vitality of microorganisms in the oil can be activated, the hardening of the soil can be overcome, and the air permeability of the soil can be improved. The loss and evaporation of water can be reduced, the drought pressure can be alleviated, the fertilizer can be maintained, the use of chemical fertilizer can be reduced, the harm of salt and alkali can be alleviated, under the situation that the use amount of the chemical fertilizer is reduced or the chemical fertilizer is gradually substituted, the animal and livestock excrement and plant fermented fertilizer after being fermented by the microorganisms has the advantages of the organic fertilizer, the advantages of microbial manure and the advantages of the humic fertilizer, the demand of the crops on the nutrients can be maximally satisfied, and purposes of high quality and high yield can be achieved.

The invention discloses a white spirit vinasse classified rice hull removing method and a method for preparing an organic liquid fertilizer base solution with rice-hull-removed white spirit vinasse as a raw material. By the adoption of the methods, rice hulls can be removed from the white spirit vinasse containing the rice hulls, the rice-hull-removed white spirit vinasse is used for preparing an organic liquid fertilizer base solution product, and therefore the bottleneck problem about white spirit vinasse resource reuse is solved.

The invention discloses strong flavor type Baijiu pit mud curing liquid and a preparation method thereof. The strong flavor type Baijiu pit mud curing liquid is prepared from the following formula ingredients in parts by mass: 20 to 30 parts of ash calcium, 6 to 8 parts of edible alcohol, 1 to 2 parts of strains, 50 to 60 parts of yellow water, 5 to 7 parts of medium-high-temperature Daqu, 4 to 6 parts of yeast extracts, 1 to 2 parts of a humidizer, 6 to 10 parts of sodium hydroxide, 6 to 8 parts of fermented grains, 2 to 6 parts of methanobacterium culture solution and 60 to 100 parts of purified water. A high-quality aged pit mud is used as a bacterial strain source; the sterilization and culture conditions are simple; beneficial microbial strains such as caproic acid bacteria for brewing strong flavor type Baijiu are subjected to enlarging cultivation, so that the number and the effect of long-term domestication under the natural conditions can be achieved in short time.

The invention discloses a special soluble formula fertilizer for grapes and an application method thereof. The formula fertilizer comprises a fertilizer a, a fertilizer b and a fertilizer c, wherein the fertilizer a consists of carbamide, diammonium phosphate, potassium sulfate, zinc sulfate and borax; each of the fertilizer b and the fertilizer c consists of carbamide, diammonium phosphate and potassium sulfate; the components are matched according to a required proportion. The method comprises the steps as follows: firstly, the fertilizer a, the fertilizer b and the fertilizer c are respectively prepared into solutions with the weight percentage of 0.2-0.3%; secondly, utilizing the fertilizer a to conduct drip irrigation before the florescence; thirdly, utilizing the fertilizer b to conduct drip irrigation after the florescence; fourthly, utilizing the fertilizer c to conduct drip irrigation at the initial stage of coloring. According to the formula fertilizer and the application method thereof, the fertilization is implemented with pertinence completely according to the proportion of the nutrients required by the grapes at various growing periods so as to achieve the aims of cost saving, quality improving and efficiency improving; the defects that the matching of the ordinary compound fertilizer is not scientific and the cost of the ordinary soluble fertilizer is high are overcome; moreover, root drip pipes or irrigation are adopted for topdressing, so that the fertilizer effect can be taken quickly, and the labor cost is reduced.

The invention provides a thermal circulation system for supercritical hydrothermal synthesis of nano powder. The thermal circulation system comprises a material delivery unit, a thermal cycle utilization unit and a reaction post-processing unit. The invention also provides a thermal cycling method based on the system, high-temperature and high-pressure fluid flowing out in a reactor can be sufficiently heat recycled, heat is provided for unreacted fluid and dried nanoparticles through three-stage heat exchange, energy level matching is achieved as much as possible in the utilization process ofheat energy, low-grade heat energy is utilized to the maximum extent, system energy consumption and operation cost are reduced, system economy and stability are improved, and system harmlessness andresource processing are realized.

The invention discloses a process for harmlessly producing iron oxide red pigments by an alkaline circulation method. The process includes the steps: 1 preparing ferrous sulfate solution; taking iron-containing minerals or iron-containing solid waste materials as raw materials; crushing the iron-containing minerals or the iron-containing solid waste materials to prepare iron-containing material powder, performing acid leaching on the obtained powder, mixing the acid leaching liquid and ammonia decomposition raffinate from iron oxide red mother liquor ammonia water recovery procedures in an acid leaching reactor according to the solid-liquid ratio of 1:(1-5), adding an appropriate amount of sulfuric acid for leaching, and transforming iron in the iron-containing minerals or the iron-containing solid waste materials into ferric sulfate and ferrous sulfate to enter a liquid phase. Acid leaching temperature is increased by the aid of reaction heat in the leaching process, steam flow for heating is omitted in the reaction process, and filtering and washing are performed after reaction. Production capacity is high, energy is saved, pollution is avoided, compared with a current iron oxidepigment industry, production efficiency and equipment production capacity are improved, production cost is correspondingly reduced, and the process has obvious technical progress and is effectively popularized.

The invention relates to a preparation method for gumbo disease and pest control liquid from herbal medicine. The preparation method comprises the following steps: (1) preparing disease and pest control herbal medicine crushed matters, namely, crushing fructus toosendan, radix sophorae flavescentis, leucothoe, artemisia capillaries and sandalwood bark for standby use, and mixing the crushed matters according to an equal amount ratio for standby use; (2) preparing a herbal medicine capable of improving successive cropping obstacles of crops, namely, removing foreign matters in stevia rebaudianum, pine twigs, pine needles and sea grasses, cleaning, air-drying, crushing, and mixing the treated crushed matters for standby use according to a weight ratio of 5 to 2 to 2 to 1; (3) preparing plant straw crushed matters; and (4) preparing the disease and pest control liquid. The fermented liquid has a remarkable effect on controlling diseases and pests easily generated in gumbo and improving the soil growth obstacles caused by the successive cropping of the gumbo. The preparation method is simple in process, economical and environmentally-friendly; the important significance on achieving high-quality, high-efficiency and ecological environment-friendly gumbo production and providing safety, assured, nutritional and health food for consumers can be realized.

The invention relates to the field of engineering materials, and more particularly discloses a medium-high temperature anti-graphitization economical electrolytic cell steel and a preparation method thereof. The electrolytic cell steel comprises the following components of, by weight, less than or equal to 0.14% of C, less than or equal to 0.35% of Si + Al, less than or equal to 1.20% of Mn, lessthan or equal to 0.015% of S, less than or equal to 0.020% of P, less than or equal to 0.50% of Cr + Cu, less than or equal to 0.50% of V + Ti, and the balance Fe and impurities. According to the steel, the problems of welding seam graphitization, anti-oxidation and low lifetime during secondary maintenance of a cell shell in a high-temperature stress state of an aluminum electrolytic cell are solved, on the basis of an existing material of the aluminum electrolytic cell, the chemical components of the electrolytic cell steel are redesigned through the mutual exclusion effect of alloying elements such as the Si, the Al, the Cr and the V and the influence on high-temperature performance of a steel plate, the electrolytic cell steel has medium-high-temperature-resistant and anti-graphitization characteristics on the basis of cost control through a controlled-rolling and controlled-cooling process, and provides a low-cost high-performance special steel plate of the electrolytic cell for the electrolytic aluminum industry, a traditional aluminum electrolytic cell existing material can be replaced, and the cost is saved for the electrolytic aluminum industry.