76results about How to "Appropriate dosage" patented technology

The invention relates to an internal concrete curing compound and manufacturing method thereof. The ingredients include de-ionized water, non-metallic minerals, sodium hydroxide, acrylic acid and/or derivative monomer, water-soluble initiators of free radical polymerization, water-soluble cross-linker of free radical polymerization and addictive. The preparing method for the internal curing compound of solution-type concrete is characterized in that the following procedures are applied: 1) preparation of raw materials; 2) mixing of de-ionized water, sodium hydroxide, acrylic acid and/or derivative monomer; 3) the mixed solution is added and mixed with and in order of cross-linker, initiator, non-metallic minerals, epoxy ethane, rust retardant agent; the internal concrete curing compound can be obtained following a homogeneous mixing and heating with recycled hot air. The invention can save curing water, reduce manpower/material input, minimize addictive cost, effectively control water evaporation, reduce the cost for late concrete curing and enhance the comprehensive performance of concrete addictives, which proves to be environment friendly with respect to environmental impact.

The invention relates to a beneficiation method of high calcium carbonate content type fluorite ore and belongs to the field of beneficiation. The beneficiation method comprises the steps of conducting flotation, wherein ore grinding is conducted on the high calcium carbonate content type fluorite ore until the fluorite ore with the granularity smaller than 74 microns accounts for 78%-92% firstly, secondly, sodium carbonate serving as a pulp regulator, acidized sodium silicate serving as a gangue inhibitor and sodium oleate serving as a catching agent are added in sequence, and then a fluorite rough concentrate is obtained; conducting concentration six times, wherein concentration is conducted on the fluorite rough concentrate obtained through the last step six times, acidized sodium silicate serving as a gangue inhibitor and tannin are added in sequence every time concentration is conducted from the third time to the sixth time, and a fluorite concentrate pulp is obtained after concentration is conducted six times; conducting acid leaching, wherein the fluorite concentrate pulp obtained from the last step is concentrated, hydrofluoric acid is added, the fluorite concentrate pulp and the hydrofluoric acid are evenly mixed, leaching is conducted, and a high-grade fluorite concentrate can be obtained after liquid-solid separation. By the adoption of the beneficiation method, the beneficiation effect is good and the recovery rate of fluorite is high.

The invention discloses a geopolymer-fiber road pavement mending material and a preparation method thereof. The mending material comprises the following components according to parts by weight: 38-52 parts of pulverized coal ash, 12-27 parts of mineral powder, 25-34 parts of an alkali activator, 0.27-0.55 part of fiber, and 1.6-6 parts of water. The alkali activator is made by mixing water glass and analytical pure according to a modulus of 1.2-1.8. The preparation method comprises the steps: weighing the pulverized coal ash and the mineral powder proportionally, and mixing well preliminarily to obtain pulverized coal ash and mineral powder composite powder; weighing the water glass and analytical pure according to the ratio, adding the analytical pure quickly into water, and stirring and cooling to obtain alkali activator solution of required modulus; weighing water and fiber according to the ratio, mixing well the water and the alkali activator solution, adding into the fiber, preliminarily stirring, adding the composite powder, and stirring well to obtain the mending material. The geopolymer-fiber road pavement mending material is good in mobility, high in compressive strength and breaking strength tensile strength, has high hardening speed and early strength, is high in toughness and is applicable to road emergency mending and reinforcing.

The invention provides hydroxyl acrylic resin and a preparation method thereof. The hydroxyl acrylic resin is prepared by performing a reaction on the following raw materials in parts by weight: 60 to 90 parts of hard monomers, 10 to 30 parts of soft monomers, 5 to 20 parts of hydroxyl monomers, 0.5 to 5 parts of carboxyl monomers, 1 to 5 parts of initiators, and 1 to 5 parts of chain transfer agents. The dosages of the hard monomers are more, so that the hardness of the prepared hydroxyl acrylic resin is strengthened; the dosages of the soft monomers are proper, so that the proper toughness of the hydroxyl acrylic resin can be maintained. Compared with the prior art, the dosages of the hydroxyl monomers are reduced to some extent, so that the surface drying speed of the hydroxyl acrylic resin is further increased, and the hydroxyl acrylic resin has a higher glass-transition temperature. At the same time, the content of the hydroxyl is moderate, so that the hydroxyl acrylic resin can maintain excellent crosslink density and solvent resistance; moreover, the chain transfer agents are utilized to control the molecular weight of the hydroxyl acrylic resin, so that the hydroxyl acrylic resin is not only relatively higher in solid contents, but also lower in viscosity.

The invention provides a method for preparing micron spherical silver powder and belongs to the technical field of solar cells. PEG-6000 and PEG-4000 serve as dispersing agents, and the method comprises the following steps of: preparing silver nitrate and ascorbic acid solution with a certain concentration, preparing mixed solution of the dispersing agents and ascorbic acid, regulating the pH value of the reaction solution through ammonia water, dripping a reducing agent and the ascorbic acid into the silver nitrate solution, and performing ultrasonic dispersion treatment, standing, separating, washing and drying after the dripping is ended. The obtained spherical silver powder has smooth surface, high uniformity, high dispersibility and a certain glossiness, the impurity content is less than 3*10 to the power of -4, the specific surface area is 0.2 to 1.2m<2>/g, the tap density is 3.8g/ml, the particle size distribution is 1.15 to 3mu m, and the performance requirement of the solar silver paste can be well met.

A dispenser for powdered, granular or related fluent materials. The dispenser includes a reservoir and an actuation mechanism that together define a housing, or enclosure. The reservoir sealingly contains a fluent material such that the contents are not easily contaminated or tampered with. User-imparted relative movement between cooperating parts of the actuation mechanism and reservoir enables a predetermined and repeatable quantity of the fluent contents to be discharged from the dispenser and onto a desired area, such as a food product. The dispenser is configured as a disposable device such that, after depletion of the fluent material contents arising out of a multiplicity of uses, it can be thrown away.

The invention discloses a low-creep C60 high-performance concrete material. Economic and reasonable 42.5 normal portland cement or portland cement is selected, and technologies of mixing grade I fly ash and grade S95 mineral powder, adding a polycarboxylic acid superplasticizer, and the like are adopted, thereby optimizing the proportioning of concrete, ensuring the economy and good placeability and mechanical property of concrete with low water to binder ratio, avoiding concrete cracking caused by low water to binder ratio, ensuring high durability of the concrete, effectively reducing the creep of concrete, reducing the prestressing loss, and ensuring the safety of the concrete structure.

The invention discloses a method for breeding chamomile. The method disclosed by the invention comprises the following steps: (1) inoculating chamomile seeds onto a seed germination culture medium to carry out sterile seedling cultivation so as to produce sterile seedlings; (2) taking hypocotyls of the sterile seedlings as explants, inoculating the explants onto a callus induction culture medium to carry out callus induction culture so as to generate calluses by virtue of induction; (3) inoculating the calluses generated by induction onto an adventitious bud differentiation culture medium to carry out adventitious bud induction differentiation culture so as to obtain adventitious buds; (4) inoculating the adventitious buds onto a rooting culture medium to carry out rooting culture and culturing adventitious roots by virtue of induction so as to obtain rooted seedlings; and (5) hardening and transplanting the rooted seedlings so as to finally obtain the chamomile. In a regeneration system established by the method disclosed by the invention, callus inductivity reaches up to 86.63%, differentiation rate of the adventitious buds reaches up to 25.5%, rooting rate reaches up to 100%, and transplanting survival rate reaches up to 100%, thus a large number of excellent chamomile test-tube plantlets can be obtained in short term so as to realize large-scale factory production.

A method of forecasting optimal insulin dosage levels calculates a near real time blood glucose forecast based on frequently updated data representative of blood glucose levels and displays a near real time blood glucose forecast to a user.

The invention discloses a traditional Chinese medicine used for treating bone injury, postoperative bone nonunion and delayed union and a preparation method thereof. The invention consists of twenty six traditional Chinese medicines of frankincense, hemlock parsley, cassia twig, myrrh, angelica, rhizoma corydalis, safflower, fossil bone, rhizoma drynariae, elecampane, eucommia bark, dipsacus asperoides, Chinese goldthread, mirabilite, ground beetle, earthworm, DiFeng, Chinese fresh-water crab, oyster, rhubarb, pseudoginseng, borneol, pearl, muskiness, dragon's blood and tiger bone. The invention has good curative effect for the patients with bone injury and fracture nonunion.

The invention discloses a scraper used for the silk-screen printing of a solar cell, comprising a scraper body, wherein the lower end of the scraper body is provided with a scraping strip. The scraper is characterized in that two sides of the scraper body are respectively provided with an auxiliary scraper blade; an included angle between the auxiliary scraper blade and the front part of the scraper body is 110-130 degrees; the lower end of the auxiliary scraper blade is provided with the auxiliary scraping strip; and the lower plane of the auxiliary scraping strip is leveled with the lower plane of the scraping strip. When the scraper is used in the silk-screen printing process of the solar cell, a printing zone becomes a relatively sealed environment, and two auxiliary scraper blades can better control slurry within a printing graph, thereby greatly improving the quality and the effect of the silk-screening printing; in addition, slurry can be prevented from generating; and printing fragments have small possibility of being generated in the printing process. According to the scraper, the slurry amount is saved, and the frequency for an operator to shovel slurry is lowered.

The invention discloses a special-shaped beam column node template and an engineering template equipping method thereof. The special-shaped beam column node template comprises a bottom die used for being connected with an upright column in a sealing and embracing mode, and an upper die which is fixedly connected with the bottom die, wherein an annular platform is arranged at the upper opening of the bottom die outwards at 90 degrees, a long strip arc through hole is formed in the annular platform, the upper die consists of a plurality of sections of arc templates, the plurality of sections of arc templates are regulated and spliced along the inner circumference of the bottom die to left beam connectors in different directions to form special-shaped beam column nodes, and a bolt penetrates through the through hole to be used for fixing the upper die onto the bottom die. According to the special-shaped beam column node template disclosed by the invention, by virtue of the structure, an upper template can be arranged in an arbitrary rotating mode so as to regulate the direction of a beam opening; by using the upper template formed by the arc templates with the common divisor or called modulus, the upper template can be detached and separately spliced, and the problem of non generality is solved with the combined type modulus upper template; by virtue of a matching method, the use quantity of the upper template can be proper, so that the segmented continuous construction is realized without needing to manufacture the whole template, and the construction cost is saved.

A novel method for producing a bone filling material is provided. The method comprises the steps of: (a) kneading ingredient comprising calcium-based material and material comprising binder; (b) molding a predetermined shape of the mixture obtained in step (a) with an injection molding machine having a mold; (c) removing the binder contained in the mold formed in step (b) (i.e., degreasing) to obtain a degreased body; (d) and heating and sintering the degreased body obtained in step (c) to obtain a sintered body.

The present invention discloses a low-sugar compound feed for micropterus salmoides and a preparation method thereof. The low-sugar compound feed for the micropterus salmoides is composed of the following raw materials: protein source raw materials, sugar source raw materials, a filler, an antioxidant, multivitamins, compound mineral salts, a feed additive and fat raw materials. At the same time,the preparation method of the low-sugar compound feed for the micropterus salmoides is also disclosed. The preparation method explores the optimum starch addition amount. The low-sugar compound feed for the micropterus salmoides improves the growth rate and reduces the mortality of the micropterus salmoides body, at the same time improves immunity of the micropterus salmoides body, reduces damageof the liver, and is obvious in effect and superior to existing commercial feeds.

The invention relates to a high molecular weight acrylic resin for a polyvinylidene fluoride coiled material finish paint. The acrylic resin is combined with polyvinylidene fluoride resin as a coiled material finish paint base-material, is a bead-shape transparent particle and has a number-average molecular weight Mn higher than 90 thousand and molecular weight distribution Mw / Mn less than 2.0. The resin of the invention is prepared by a suspension polymerization method from material monomers of 50-80 wt% of methyl methacrylate and / or methyl acrylate, 10-40 wt% of ethyl acrylate and / or methyl methacrylate and 0-40 wt% of one or more selected from acrylic acid, hydroxyethyl acrylate, hydroxypropyl acrylate, methacrylic acid, hydroxyethyl methacrylate, hydroxypropyl methacrylate, butyl acrylate and butyl methacrylate. The high molecular weight acrylic resin of the invention can be combined with a PVDF resin, and a prepared finish paint film has comprehensive properties the same as an imported one and better performances on MEK-resistant wiping frequency and artificial ageing resistance.

The invention discloses a probiotic compound oligopeptide nutritional supplement capable of lowering uric acid. The probiotic compound oligopeptide nutritional supplement is prepared from the following raw materials in parts by weight: 2-7 parts of ocean fish oligopeptide powder, 6-14 parts of collagen, 12-24 parts of xylooligosaccharide, 4-9 parts of common lophatherum herb, 20-40 parts of sorbitol, 6-10 parts of citric acid and 0.01-0.05 part of vitamin C, as well as 9-11 billion CFU of active probiotic micro-capsules. Compared with the prior art, the product has the advantages of being capable of effectively lowering uric acid, having good taste, having anti-ageing effect and small toxic and side effect, and being convenient to eat.

The invention discloses a method for judging water demand of a cementing material. The method comprises the following steps of: mixing cement with fixed mass and standard sand to form contrast mortar, and adding water until the fluidity of the contrast mortar reaches a specified standard; replacing a certain amount of the cement by using a blending material, mixing the cement, the blending material and the standard sand to form experimental mortar, and adding water until the experimental mortar reaches the specified standard; comparing the water added quantity of the contrast mortar with the water added quantity of the experimental mortar, and determining the water demand of the blending material; and weighing the cement and the blending material which are equal, respectively adding water with the same water cement ratio in the cement and the blending material, manually blending the cement and the blending material uniformly, and comparing the viscosity of the cement with the viscosity of the blending material to determine the substitution quantity of the blending material relative to the cement. By the method for judging the water demand of the cementing material, a rapid and visualized method for detecting the water demand of the cementing material is realized. The method for judging the water demand of the cementing material is high in practicality, visualized and rapid, and appropriate blending quantities of various materials can be compared when the materials are used simultaneously.

The invention is related to a functional fat-reducing sugar having fat-reducing effects, wherein the mixture of the following is used as the essential component, one, two or more of malt sugar alcohol, xylitol, sorbostyl or mannitol by any proportion, in addition, gamboges fruit extract and Guarana seed extract are charged as fat-reducing components, and a mixture of one, two or more by any proportion of trace amount L-tyrosine, arginine or citrulline is added.

The invention discloses a genetically modified violacein biosynthetic gene cluster, a recombinant expression vector, engineering bacteria and application thereof. The ribosome binding site of the violacein biosynthetic gene cluster is subjected to site-specific mutagenesis and codon deletion mutation transformation, so that effective translation of violacein synthetic protein is promoted, and thetransformed gene cluster with remarkably improved production potential is obtained; by introducing the modified gene cluster or the recombinant vector containing the modified gene cluster into host bacteria, engineering bacteria for high yield of violacein are obtained; furthermore, fermentation conditions of engineering bacteria are optimized, and a method for separating and purifying violacein is provided. The genetic engineering strain constructed by the invention has the advantages that the yield of violacein can be obviously improved; different from conventional low-temperature fermentation of violacein at 20 DEG C or 25 DEG C, the violacein metabolite can be efficiently produced under the temperature condition of 25-37 DEG C, the problem of high cooling cost in the fermentation process is solved, and the invention is suitable for large-scale production.

The invention relates to a device in the field of wastewater treatment technology and in particular to a novel chemical oil remover. The oil remover comprises a water distribution region, a reaction region, a settlement region and a sludge region, wherein the reaction region is distributed in the water distribution region, the sludge region is distributed at the bottom of the reaction region, and the settlement region is distributed on the upper end of the outer circle of the reaction region. The oil remover also comprises an effluent triangular weir and a lifting stirrer, wherein the lifting stirrer is arranged in and traverses the reaction region. Through changing the design of the device, the invention reduces the surface load of the device, improves effluent effect, lowers flow speed for forming a mud layer and improves oil removal effect.

The invention relates to the field of respirators, and discloses a micro-administration respirator. The micro-administration respirator comprises a respiratory mask (1), a spray bottle (4) and a micro-administration mechanism (3); the micro-administration mechanism (3) comprises an end cap (5), a barrel (6) and a drug flow fine-tuning member; the end cap (5) and the barrel (6) are coaxially nestedand communicate with each other; a drug inlet of the barrel (6) is in communication with the spray bottle (4) through a first hose (2); a dispensing port of the end cap (5) is in communication with the respiratory mask (1) via a second hose (15); and drug flow fine-tuning member is disposed within the barrel (6). Compared with the prior art, the micro-administration respirator realizes micro-administration through the drug flow fine-tuning member, and at the same time solves the problem that an existing micro-administration sprayer is easily blocked.

The invention provides application of serpentine magnesium extraction tailings in the field of compound fertilizers, a sandy land compound fertilizer and a preparation method of the sandy land compound fertilizer, and belongs to the field of compound fertilizers. The invention provides the application of the serpentine magnesium extraction tailings in the field of fertilizers, and the serpentine magnesium extraction tailings are used for preparing the compound fertilizers, so that the serpentine magnesium extraction tailings are completely utilized, and the reutilization of resources is realized.