406 results about "Substance amount" patented technology

An apparatus provides automatically controlled facial rejuvenation treatments and is comprised of a scanner for scanning a patient's face, a treatment robot, including a plurality of dermatological devices for treatment of facial skin, and a computer coupled to the scanner and robot for determining a treatment protocol of the patient's face based on a scanned input of the patient's face and for generating a plurality of commands for the treatment robot for movement and/or control of the plurality of dermatological devices for the automated treatment of the skin of the patient's face. A dermatological laser, needle injector, and/or air injector are used. The needle injector injects a minute amount of substance at a multiplicity of points within a computer-identified treatment area on the patient's face.

The invention discloses a method for preparing a hydroxyapatite-natural macromolecular nano compound with a one-pot method. The method disclosed by the invention has the core characteristics that raw material powder is directly added, and mainly comprises the following steps: adding calcium salt and phosphate into a natural macromolecular solution according to the amount of substance ratio of Ca/P of 5 to 3; adjusting the pH of the system to 10 to 12 by using an alkali solution, wherein calcium ions, phosphate ions and hydroxyl ions in the system and natural macromolecules have an in-situ co-precipitation reaction; washing a reaction product to be neutral, and drying to obtain the hydroxyapatite-natural macromolecular nano compound; grinding and sieving to prepare nano composite particle products with different specifications. The method disclosed by the invention is simple and has moderate reaction conditions and small energy consumption; the obtained hydroxyapatite-natural macromolecular nano compound has good granularity, rigidity, microscopic appearance and crystallinity, and can be widely applied to the fields of bone defect repairing tissue engineering materials and medical equipment and the like of dental department, orthopedic surgery and the like.

The invention relates to a method for accurately measuring absorbed phase density of methane on shale. The method comprises the following steps: 1) smashing a piece of shale sample to be 60-80 meshes, and dividing the powder into two; 2) performing a volumetric method isothermal adsorption experiment on the first shale sample, and obtaining a calculation model of the amount n, adsorbing CH4, of the adsorbed state methane substance; 3) performing a weight method isothermal adsorption experiment on the second shale sample, and obtaining a calculation model of the mass m, adsorbing CH4, of the adsorbed state methane; 4) performing adsorbed phase volume correction on the calculation model of the amount n, adsorbing CH4, of the adsorbed state methane substance, obtained in the step 2) and the calculation model of the mass m, adsorbing CH4, of the adsorbed state methane, obtained in the step 3), so as to obtain the corrected substance amount calculation model and the corrected mass calculation model of the adsorbed state methane; 5) according to a definition formula of the amount of substance, combining with the two calculation models in the step 4), and determining the mass m, adsorbing CH4, and the volume V adsorption of the adsorbed state methane; 6) according to the definition of the density, determining an exact adsorption value of the adsorbed phase density rho of methane on the shale.

Various handheld medical dispensing configurations and methods including the following: Handheld medical dispensing system comprises a syringe, which has a plunger, releasably mounted to syringe actuation apparatus, the apparatus having an actuator configured such that it can move the plunger more than once to dispense a plurality of amounts of substance from the syringe. A method of dispensing fluid from a syringe comprises holding a medical substance delivery system including a syringe, which has a needle, and which is secured to syringe actuation apparatus configured to dispense predetermined amounts of the substance from the syringe, penetrating the needle at one patient site and using the apparatus to deliver a predetermined amount of the substance, and penetrating the needle at another patient site and using the apparatus to deliver a predetermined amount of the substance.

The invention provides a multifunctional mesoporous glass bracket with biological activity, and the glass bracket with biological activity has a amorphous form glass structure, and 90%-99.999% of macropores are communicated; the glass bracket with biological activity also contains 1-15 mol% of copper, which is based on calculation of total substance amount of the glass bracket with biological activity CuO-CaO-P2O5-SiO2. The invention also provides a preparation method of multifunctional mesoporous glass bracket with biological activity, which employs a sol-gel method to prepare mesoporous glass bracket with biological activity containing different copper contents; the copper-containing mesoporous glass bracket with biological activity has the advantages of blood vessel forming potential, ossification property, medicament deliver and antibacterial property.

The invention relates to a composite anode material LiMnPO4-Li3V2(PO4)3/C for a lithium ion battery and a preparation method of the material. LiMnPO4 and Li3V2(PO4)3 in the LiMnPO4-Li3V2(PO4)3/C are stoichiometric compounds; a substance amount ratio of the LiMnPO4 to the Li3V2(PO4)3 is equal to 1/x, wherein x is more than 0 and is less than or equal to 1; and the carbon content in the compound is 1wt%-8wt%. The preparation method of the composite anode material comprises the following steps of: dissolving a lithium source compound, a manganese source compound, a vanadium source compound and a phosphorus source compound in de-ionized water according to a mol ratio of Li to Mn to V to P of (1+3x) to 1 to 2x to (1+3x), thus obtaining a solution, wherein x is more than 0 and is less than or equal to 1; secondly, carrying out spray drying on the solution to obtain precursor powder; heating the precursor powder in a tube furnace; mixing products after heat treatment with a carbon source matter, carrying out ball milling on the mixture to obtain slurry, and then drying the slurry; pre-sintering the slurry in inert atmosphere, and then roasting and cooling the slurry to obtain the composite material LiMnPO4-Li3V2(PO4)3/C. The composite anode material for the lithium ion battery prepared by the method has high capacity and good rate capability, and is applicable to a power battery.

The invention provides a synthetic method for linear alkylbenzene. By taking linear olefin containing 2 to 20 carbon atoms and benzene as raw materials under the reaction condition of a temperature being 10 to 450 DEG C, a pressure being 0.1 to 15MPa, the ratio of the amount of substances of benzene and the olefin is 2 to 100:1 and the airspeed of a feeding total mass is 0.1 to 20 h<-1>, and an alkylation reaction is carried out by catalyzing by a solid acid catalyst, the linear alkylbenzene is obtained. The solid acid catalyst is M-SBA-15 typed mesopore molecular sieve catalyst or compound solid acid catalyst which is obtained by modifying the M-SBA-15 typed mesopore molecular sieve catalyst. The catalyst adopted by the invention has no corrosion, is friendly to environment and has good activity stability; therefore, higher olefin conversion and reaction selectivity can also be obtained even under comparatively lower temperature. Furthermore, the device is stable and has long operation time; therefore, frequent switching operation on the reaction and regeneration of the reactor can be avoided.

The invention relates to a preparation method of ternary system material, in particular to a preparation method of lithium cobalt nickel manganese oxide ternary system material for lithium ion batteries. The invention applies ensured ternary system material salt as raw material. After needed matching weight, by means of eve dissolving and mixing, a composite metal oxide prepared by a spray-roasting method is used as a fore body. The fore body is mixed with a lithium-source compound according to the substance amount of 1:1-1.5, and then roasting is carried out at the temperature of 700 to 1000 degrees centigrade to obtain the ternary system material. The tail gases, such as vapor, acidic gas, generated in the spray-roasting process are absorbed by a washing tower to obtain acid. The invention has the advantages of advanced technique, stable production, low cost, no waste water discharge, environmental protection, high product purity, even granularity, high crystallinity, etc.

The invention discloses a method for producing sodium alginate by applying brown algae. The method is characterized by treating the brown algae by utilizing a fenton method to obtain a treatment product and extracting the sodium alginate from the treatment product, wherein the particular process of treating the brown algae by utilizing the fenton method comprises the following steps of soaking the brown algae in a ferrous ion solution, wherein the weight ratio of the brown algae and ferrous ions in the ferrous ion solution is (500:1)-(10:1); then adding a hydrogen peroxide solution to the ferrous ion solution, and treating for 1-100 minutes, wherein the amount of substance ratio of the ferrous ions and hydrogen peroxide in a mixed solution is not lower than 1:1. The method disclosed by the invention has the advantages of low energy consumption, convenient operation, low water consumption and fast degradation, is used for increasing the output of the sodium alginate produced by applying the brown algae and especially provides a simple, convenient and effective method for producing the low-viscosity sodium alginate.

Polyurethane-based pressure-sensitive adhesive wherein the polyurethane comprises the chemical reaction product of at least the following starting materials:

• a) polyisocyanates comprising at least one aliphatic or alicyclic diisocyanate and at least one aliphatic or alicyclic polyisocyanate having an isocyanate functionality of three or more than three, the amount-of-substance fraction of the aliphatic or alicyclic polyisocyanates having an isocyanate functionality of three or more than three as a proportion of the polyisocyanates being at least 18 per cent, and
• b) at least one pressure-sensitively adhesive, hydroxyl-functionalized polyurethane prepolymer.

The invention provides a ruthenium catalyst for ammonia synthesis with high activity which has composite oxide as a carrier, and a preparation method thereof. The ruthenium catalysts for ammonia synthesis comprises composite oxide as the carrier, metal Ru as an active component, wherein the capacity is 1-12 wt.% of the active carbon weight calculated based on Ru. The composite oxide is formed by magnesium and one or two or more than two nonferrous metal of: 1) alkaline earth but not magnesium; 2) alkali metals; 3) rare earth metal, wherein the ratio of magnesium and the nonferrous metal based on the amount of substance is 0.2-25:1. The catalyst of the invention has higher catalytic activity and better application prospects compared with the existing ruthenium catalyst for ammonia synthesis which has oxide as a carrier.

The invention discloses a lithium adsorbent and a preparation method of the lithium adsorbent. The preparation method comprises the following steps: step S1: sufficiently mixing an aluminum chloride solution with the lithium compound to form a reaction preliminary body, wherein the amount of substance of the aluminum chloride to the lithium compound is (1.8 to 2.2) to 1, and the lithium compound is one of the lithium hydroxide, lithium carbonate and lithium chloride; step S2: adding a sodium hydroxide solution in the reaction preliminary body, wherein the amount of the substance of the sodium hydroxide to the aluminum chloride is (2.5 to 3.5) to 1; reacting to generate LiCl.2.2-2.8Al(OH)3.2.7-3.9H2O so as to form a first product; step S3, performing solid-liquid separation, drying, grinding and smashing on the first product to form a second product; step S4, adding adhesive and the liquid chlorine in the second product to realize mixing granulation, thereby forming a third product; and step S5, crushing and sieving the third product to obtain the lithium adsorbent. The preparation process of the lithium adsorbent is simple and efficient, the prepared lithium adsorbent is excellent in property, and the raw material has great selectivity, so that the preparation cost of the lithium adsorbent is effectively saved.

The invention belongs to the processing field of sewage containing phosphorus, and discloses a method for removing phosphorus in water by utilizing ferric salt-modified eggshells. The method comprises the following steps: the modified process of the eggshell: mixing 0.1-0.5mol/L of ferric salt solution and eggshell power at the temperature of 10-60 DEG C, wherein the mass ratio of substance amount of ferric salt to the eggshell powders is 0.001-0.0015mol/g; subsequently continually stirring for 24h; filtering; finally placing into an oven; drying at the temperature of 100-105 DEG C; sieving through a 100-mesh sieve to obtain the modified eggshell powders; and placing the modified eggshell powders into a dryer for later use; and phosphorous removal process in sewage: adding 0.1-1g of modified eggshell powders to 100mL of solution containing phosphorus with the concentration of 0.2-50mg (P)/L, wherein the pH of the solution is 3-10; performing constant temperature vibration at the temperature below 10-40 DEG C in the speed of 50-200r/min; and carrying out 0.45 mu m filter membrane after vibrating for 10min-6h.

Various handheld medical dispensing configurations and methods including the following. Handheld medical dispensing system comprises a syringe, which has a plunger, releasably mounted to syringe actuation apparatus, the apparatus having an actuator configured such that it can move the plunger more than once to dispense a plurality of amounts of substance from the syringe. A method of dispensing fluid from a syringe comprises holding a medical substance delivery system including a syringe, which has a needle, and which is secured to syringe actuation apparatus configured to dispense predetermined amounts of the substance from the syringe, penetrating the needle at one patient site and using the apparatus to deliver a predetermined amount of the substance, and penetrating the needle at another patient site and using the apparatus to deliver a predetermined amount of the substance.

The invention discloses an organic lead inhibitor and application thereof. A preparation method of the organic lead inhibitor includes the steps that polyacrylamide with the molecular weight ranging from 200 to 1000000 is reacted with carbon disulfide for 1-12 h at 20-80 DEG C in the presence of alkali, and the organic lead inhibitor is obtained after reaction, wherein the amount of substance of the carbon disulfide is larger than 0 and equal to or small than that of acrylamide monomers in the polyacrylamide, and the molar ratio of the alkali to the carbon disulfide is 1-1.2:1. The organic lead inhibitor can be applied to copper-lead separation or copper-zinc separation or copper-lead-zinc separation. The embodiment of the organic lead inhibitor can effectively inhibit lead ore and is safe, low in toxicity, convenient to use and capable of effectively solving the problems of poor operating environment, difficult wastewater treatment and serious environmental pollution caused by an existing lead inhibitor.

Various handheld medical dispensing configurations and methods including the following: Handheld medical dispensing system comprises a syringe, which has a plunger, releasably mounted to syringe actuation apparatus, the apparatus having an actuator configured such that it can move the plunger more than once to dispense a plurality of amounts of substance from the syringe and having a housing adapted for singled handed administration of an injection.

The invention belongs to the technical field of inorganic materials and relates to a method for preparing high-purity pseudo-boehmite. The method for preparing the high-purity pseudo-boehmite comprises the following steps: under the condition of stirring, adding hydrolysate containing a pore-forming agent into an aluminium isopropoxide-isopropanol solution according to a given ratio, and carrying out hydrolysis reaction at the temperature of 60-80 DEG C for 2-8 hours, wherein the hydrolysate containing the pore-forming agent is prepared from deionized water and isopropanol in a mass ratio of 1:(0.5-3) and in ratio by amount of substance of (2-20):1; drying hydrolysis products at the temperature of 60-260 DEG C, so that the high-purity pseudo-boehmite is obtained. The method for preparing the high-purity pseudo-boehmite has the advantages that no waste is discharged in the whole preparation process, and an environment-friendly technology is realized; and meanwhile, a reaction flow is simple, and control is easy.

The invention relates to a method for preparing a flaky calcite calcium carbonate crystal, which comprises the following steps of: according to the substance amount ratio of calcium chloride to sodium carbonate as 1.4-1.8:1, adding boric acid or oxalic acid as a crystal shape control agent accounting for 0.8-4.2 percent of the mass of the sodium carbonate into 0.52-3.96mol/L of sodium carbonate solution, and controlling the solution temperature to be 40-90 DEG C; taking 1.24-6.32mol/L of calcium chloride solution, and controlling the solution temperature to be 40-90 DEG C; dropwise adding the calcium chloride solution into the sodium carbonate solution, stirring as dropwise adding, then stirring at constant temperature for 0.5-2 hours, settling at room temperature for 12-36 hours, and filtering to obtain precipitates; and repeatedly washing the precipitates with water to be neutral, removing adsorbed chloride ions, then filtering, and carrying out vacuum drying at the temperature of 40-80 DEG C to prepare the flaky calcite calcium carbonate crystal. A product is confirmed as a calcite crystal through X-ray diffraction analysis; and a scanning electron microscope result shows that the crystal is regularly flaky. The method has the advantages of low cost, simple process and regular product appearance.