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58results about How to "Addressing resource scarcity" patented technology

Light low-shrinkage super-high performance concrete and preparation method thereof

The invention discloses light low-shrinkage super-high performance concrete which is prepared from cement, coal ash beads, silica fume, pottery sand, a brass coated steel fiber, shrinkage and viscosity reduction type water reduction agent, a water-retention shrinkage-reduction inner curing agent and water as main raw materials. According to the concrete, the pottery sand is adopted as aggregate, the self weight of the concrete is reduced, and a high-strength and dense 'arch housing' interface area is formed on the surface of the pottery sand by using a pre-mixing process, so that the interfacestrength is improved, and the mechanical properties and the anti-penetrability performance of the concrete are improved; due to the adoption of the shrinkage and viscosity reduction type water reduction agent and the coal ash beads, the working performance and the density of the concrete are improved; due to the adoption of the pre-wetted pottery sand and the developed water-retention shrinkage-reduction inner curing agent, reduction of wetness inside the concrete is retarded, the self-shrinkage and the drying shrinkage of the concrete are reduced, and the volume stability of the concrete isimproved. While the self weight of the concrete is reduced, the light low-shrinkage super-high performance concrete disclosed by the invention is good in working performance, mechanical property, anti-penetrability and durability, and has significant practical application values.
Owner:WUHAN UNIV OF TECH

Dynamic electrocardiogram analysis method and system based on network and artificial intelligence

InactiveCN108836314ASolving the Difficulties of Interpreting Holter ElectrocardiogramsAddressing resource scarcitySensorsTelemetric patient monitoringAnalysis dataElectrocardiogram analysis
The invention discloses a dynamic electrocardiogram analysis method and system based on the network and artificial intelligence. The method comprises the steps that a dynamic electrocardiogram storageand analysis server receives dynamic electrocardiogram data uploaded by a dynamic electrocardiogram original collection data uploading terminal; the dynamic electrocardiogram storage and analysis server performs pre-analysis on the received dynamic electrocardiogram data, and automatically generates a dynamic electrocardiogram analysis report directly through the pre-analysis or automatically generates the dynamic electrocardiogram analysis report after a dynamic electrocardiogram pre-analysis data analysis terminal confirms a pre-analysis result; a dynamic electrocardiogram analysis report display and explanation terminal displays, explains and prints the dynamic electrocardiogram analysis report so as to assist a medical worker in diagnosing a patient and explaining the dynamic electrocardiogram analysis report to the patient. The analysis report generated through the above technical scheme and a provided corresponding data explanation report are used for being viewed by primary hospital physicians, so that the efficiency of explaining and analyzing the report of the physicians is improved.
Owner:希蓝科技(北京)有限公司

Microbiological feed additive and preparation method and application thereof

The invention relates to a microbiological feed additive and a preparation method and an application thereof, relating to a feed additive. The invention provides a microbiological feed additive compounded with various microbiological fermented powders and a preparation method and an application thereof. The microbiological feed additive consists of the following compounds according to weight percentages: 60%-99% of DHA (Docosahexenoic acid) fermented powder, 0-25% of AA (Arachidonic acid) fermented powder and 1%-30% of R. spkaeroides fermented powder. After the nutrition compositions are mixed uniformly after being crashed respectively; and then sieving, checking, weighing and packing are performed. The microbiological feed additive can be used as an active in aquatic product, poultry and livestock cultivation feeds, and the addition accounts for 0.2%-5.0% of total mass of basal feed. The contents of the nutrition compositions in the feed are increased, so that the resistance against diseases, survival rate, growth rate and nutritive value of fed animals are improved; rich coenzyme Q10 and carotenoid are used as antioxidants, so that the oxygenization of polyunsaturated fatty acid can be inhibited, the stability and using effect of polyunsaturated fatty acid are improved, and the compounding effect is obvious.
Owner:KINGDOMWAY BIOTECH (JIANGSU) CO LTD +2

Direct sodium borohydride fuel cell using ferrocene as cathode catalyst

The invention relates to fuel cell technology, and aims at providing an immediate sodium borohydride fuel cell with ferrocene as a cathode catalyst. The immediate sodium borohydride fuel cell takes alkaline sodium borohydride water solution which contains 10wt% of NaBH4 and 5wt% of NaOH as a fuel, takes air or pure oxygen as an oxidant, and takes perfluorinated sulfonic acid resin as an electrolyte; an anode catalyst is one or a mixture of a plurality of components chosen from noble metal catalysts Pt, Pd, Au and Ag and alloys thereof and non-noble metal catalysts Ni, Fe, Co, Mn, Cr and Ti and alloys thereof, and hydrogen storage material MnNi5-xMx and Zr1-xTixNi2-yNy, wherein, the range of x is 0.01-0.5 and the range of y is 0.01-1.5; the cathode of the fuel cell takes the ferrocene as a cathode catalyst. The immediate sodium borohydride fuel cell has the beneficial effects that: the sodium borohydride has higher hydrogen storage density, the noble metals are not needed as the anode electrode catalysts when an electrochemical oxidation reaction is carried out, and the immediate sodium borohydride fuel cell has higher electromotive force and higher energy density, which can effectively reduce the cost of the fuel cell, solves the problem of lack of platinum resources, and is useful for the popularization of the fuel cell technology.
Owner:ZHEJIANG UNIV

Method for producing potassium fertilizer and building bricks by using dry method or semi-dry method desulfurization ash

The invention discloses a method for producing potassium fertilizer and building bricks by using dry method or semi-dry method desulfurization ash. In particular, the method comprises the following steps of: mechanically mixing desulfurization ash, potassium ores and an additive, adding water into the mixture for wet grinding, dewatering the mixture to obtain blocks, drying the blocks, putting the blocks in a kiln furnace for high-temperature baking, dissolving the product of the baking according to a weight ratio of the product of the baking to the water of 1:2-10, filtering the mixed solution after dissolving to obtain soluble materials taking potassium sulfate serving as a main component, condensing the solution, and quickly cooling the solution to normal temperature for crystallization so as to obtain the potassium fertilizer used for agricultural production; and mixing insoluble materials obtained after filtering and municipal sludge, rive sludge or lake sludge, uniformly stirring the mixture, compressing the mixture to form bricks and steam curing the bricks to obtain the building bricks. The method has the advantages of simple process flow, high resource utilization rate and little equipment cost.
Owner:SOUTH CHINA UNIV OF TECH

Micro-alloying refined synthetic slag and preparation method thereof

The invention relates to a micro-alloying refining synthetic slag and a process for preparation, belonging to the steel melting technology field. The invention comprises raw material in the following parts that 10-20 parts of vanadium-containing waste, 50-70 parts of lime, 1-2 parts of fluorite, 5-15 parts of silicon carbon and 2-10 parts of nitrogen absorption agent. The process comprises integrating vanadium waste, lime, fluorite and silicon carbon into powder whose grain size is smaller than 0.5mm, then mixing according to proportion, melting with temperature of 600-800 DEG C, adding in nitrogen absorption agent in the process of premelting, taking out melted slag which is cooled down to constant temperature, thereby obtaining micro-alloying refining synthetic slag, and also adding right amount of binding agent to obtain phi 10-20mm ball synthetic slag which is dried with low temperature. Compared with the original synthetic slag, the property of micro-alloying refining synthetic slay of the invention increases over 20% in desulfuration, reduces over 10 minutes in refining time of the refining furnace thereby reaching below 30 minutes, and smelting consumption reduces 20KWh in one ton, and the service life of aluminum 1kg ladle in one ton steel increases 8-12 times.
Owner:SHANDONG IRON & STEEL CO LTD

Mutton sheep pellet feed and preparation method thereof

The invention relates to a mutton sheep pellet feed and a preparation method thereof, and belongs to the field of feeds. The mutton sheep pellet feed is prepared by mixing and granulating first raw materials, second raw materials and a third raw material, wherein the first raw materials comprise the following components in parts by weight: 20 to 38 parts of corn, 7.5 to 15 parts of soybean meal, 2 to 4 parts of cottonseed meal, 3 to 10 parts of sunflower seed husk, 3 to 10 parts of peanut husk and 20 to 61 parts of corn straw; the second raw materials comprise the following components in parts by weight: 0.6 to 0.8 part of calcium hydrophosphate, 0.5 to 0.6 part of stone powder, and 0.4 to 0.6 part of sodium chloride; the third raw material comprises 0.8 to 1.2 parts of composite premix by weight. The preparation method has the advantages that the preparation method is simple, and the controllability is good. The mutton sheep pellet feed has the advantages that the nutrients are comprehensive and balanced, the digestion and absorbing are easy, and the fast fattening of mutton sheep is effectively promoted; the mutton sheep pellet feed can be directly fed to the mutton sheep, the adding of coarse feed is not needed, and the problem of lack of coarse feed is solved; by adding and reasonably utilizing the non-conventional feed, the cost is reduced, and the benefit is improved.
Owner:北京泽牧久远生物科技研究院

Early-strength and high-impermeability lining concrete and preparation method thereof

InactiveCN111517717AAddressing resource scarcityInhibit early hydration temperature riseCrack resistanceMicrosphere
The invention relates to early-strength and high-impermeability lining concrete and a preparation method thereof. The early-strength and high-impermeability lining concrete is prepared from cement, fly ash microspheres, machine-made sand, gravel, an impermeable functional material, an early strength agent, a polycarboxylic acid high-efficiency water reducing agent, a mud blocking agent and water.According to the invention, waste limestone powder and kaolin are subjected to composite modification, the prepared impermeable functional material can improve the impermeability of a lining to avoidcorrosion of a reinforcing mesh, the hydration temperature rise of concrete can be reduced after limestone powder replaces part of cement, and due to the fact that the high-activity fly ash microspheres, the ball effect and the micro-aggregate effect are adopted, the workability and compactness of the concrete are enhanced, and the homogeneity of the concrete is improved. According to the early-strength and high-impermeability lining concrete and the preparation method thereof, high-mud-content machine-made sand can be adopted to replace natural river sand, and the prepared early-strength andhigh-impermeability lining concrete is excellent in working performance, mechanical performance, volume stability and crack resistance.
Owner:CHINA RAILWAY BRIDGE SCI RES INST LTD +2

A kind of anti-crack and anti-corrosion marine concrete prepared by using machine-made sand with high stone powder content

The invention discloses an anti-crack and corrosion-resisting marine concrete prepared from machine-made sand with high stone powder content. The anti-crack and corrosion-resisting marine concrete prepared from the machine-made sand with the high stone powder content is prepared from cement, silica fume, coal ash beads, gravel, the machine-made sand, steel-imitating fiber, water reducing agent, erosive ion inhibitor, internal curing and shrinkage reducing functional materials and water. The anti-crack and corrosion-resisting marine concrete prepared from the machine-made sand with the high stone powder content replaces river sand by the machine-made sand with the high stone powder content and makes use of the balling, condense filling and water reducing effects of the coal ash beads to regulate the mixability and the microstructures, by means of the erosive ion inhibitor, ensures good corrosion-resisting capability from the aspects of filling capillary pores, forming hydrophobic layers and consuming concrete internal erosive ions, and through the internal curing and shrinkage reducing functional materials as well as the steel-imitating fiber, improves the anti-crack performance and the size stability. The obtained anti-crack and corrosion-resisting marine concrete is high in working performance, mechanical performance and anti-crack, anti-permeating and anti-corrosion performance, low in control requirements on content of stone powder in the machine-made sand and significant in practical application values.
Owner:HAINAN RUIZE NEW BUILDING MATERIAL +2
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