520 results about "Mixed systems" patented technology

This invention advances power grid operational planning by introducing a mid-term scheduling framework for integrated hydro-wind-solar systems that accounts for heterogeneous daily load profiles across multiple receiving-end power grids. The proposed approach utilizes an adaptive variable-step search algorithm to segment loads into peak, flat, and valley intervals. By synthesizing five key metrics, including mean daily load, daily load factor, peak-valley differential ratio, load rates during peak / valley periods, and timing of peak / valley occurrences, the method accurately captures region-specific load patterns and peak-shaving demands. This enables a refined reconstruction of load profiles of receiving-end power grids. A nested multi-temporal scheduling model that couples medium- and short-term horizons to simultaneously maximize total energy production and minimize transmission imbalances among power grids. The model is addressed by using the mixed-integer linear programming (MILP) to obtain medium- and short-term generation schedules and power transmission schedules.

The invention discloses a mixed surfactant system surface tension prediction method and system based on machine learning. Measuring system surface tension data of the mixed surfactant at different temperatures through experiments; secondly, carrying out theoretical correction and data enhancement on the original data by utilizing a Szyszkowski equation; then constructing a multi-dimensional feature space; a nested K-fold cross validation strategy is adopted; the finally established XGB prediction model is excellent in performance on a test set of an enhanced data set, the determination coefficient R2 reaches 0.9994, and the mean square error MSE is 0.0713. The method is particularly suitable for a binary mixed system containing a nonionic polyether surfactant, and not only can accurately predict the surface tension value, but also can determine key parameters such as critical micelle concentration (CMC) and the like. An efficient and reliable technical means is provided for rapid screening and optimization of a surfactant formula, and the method has wide application prospects in the fields of daily chemicals, petroleum, pharmacy and the like.

The invention relates to a high-stability bronze powder pigment and a preparation method and application thereof.The preparation method comprises the following steps that copper-zinc alloy coarse powder, stearic acid and a dissolved compound passivator are taken and subjected to ball milling in the nitrogen atmosphere, and a ball milling product is screened, washed and subjected to suction filtration to obtain an amino-functionalized passivated base material; the preparation method comprises the following steps: dispersing SiO2 in anhydrous isopropanol to obtain a reaction system, adding deionized water and a catalyst, dissolving tetraethoxysilane and phenyltriethoxysilane in anhydrous isopropanol, slowly dropwise adding, carrying out a heat preservation reaction, and carrying out suction filtration and washing to obtain a phenyl modified SiO2 coated intermediate; the preparation method comprises the following steps: dispersing a compound stabilizer in anhydrous isopropanol to obtain a mixed system, heating and stirring, dissolving the compound stabilizer in anhydrous isopropanol, dropwise adding into the mixed system, reacting, centrifuging, washing, and drying in vacuum to obtain the bronze powder pigment. The bronze powder pigment disclosed by the invention has excellent oxidation resistance, chemical corrosion resistance and long-term storage stability, and can keep the natural color gloss of metal to the greatest extent.

An assembly for delivery of mixed chemical for use in a vehicle wash system includes a chemical delivery device for dispensing chemical having a piston with a one-way valve and a pneumatic drive mechanism; and a fluid delivery manifold configured to deliver motive fluid for mixing with the dispensed chemical having an integrated valve with a valve plunger therein configured to be pneumatically actuated. During a dispensing operation, chemical and fluid are dispensed and mixed at a mixing site of the assembly. During a resetting stroke of the chemical delivery device, the drive shaft and the piston are pneumatically retracted away from the outlet to a retracted position, and the one-way valve is in an open state and permits passage of chemical through the one-way valve for dispensing from the chemical chamber in a subsequent dispensing operation.

The invention provides a modified separation membrane as well as a preparation method and application thereof, the preparation method of the modified separation membrane comprises the following steps: obtaining a mixed system of a mineral aggregate and a polar solvent, performing ultrasonic liquid phase stripping on the mixed system to obtain a to-be-treated liquid, and the mass volume ratio of the mineral aggregate to the polar solvent is (50-100) mg: (30-60) ml; performing centrifugal treatment on the to-be-treated liquid, and collecting supernatant liquid to obtain nano suspension liquid; a cross-linking agent is mixed with the nano suspension to obtain modified liquid, the modified liquid contains the modified nanosheets, and the mass of the cross-linking agent is 2%-30% of the mass of the mineral aggregate; the modified liquid is filtered through a filter membrane, the modified nanosheets are evenly loaded on the surface of the filter membrane, and the modified separation membrane is prepared. The modified separation membrane prepared by the invention is a modified separation membrane material with high separation coefficient, high rejection rate and high flux, and has excellent performance.

The application discloses a kind of AuNPs@ polyimide SERS heating chip preparation and application method, through interface self-assembly technology preparation large-scale AuNPs array film, and transfer to the polyimide film with heating system, form AuNPs@ polyimide heating film as APHC for SERS chip, in situ heat enrichment is carried out to TNT molecule by APHC, and sample can be effectively collected from mixed system by simple operation.This flexible, heatable SERS chip has great significance for efficient, sensitive and in-situ detection of target molecules in complex environmental systems.

The invention provides a mixed speech recognition method and system based on an AI large model architecture. The method comprises the following steps: constructing a mixed system comprising a traditional ASR system and an ASR system of an AI large model; based on a large amount of unlabeled audio data, pre-training the large model through self-supervised learning, mining audio signal features, and performing supervised fine tuning on the AI large model; using cross entropy loss to train text output in the base layer; an acoustic modeling branch is introduced into the middle layer or the auxiliary head, and a CTC loss function is adopted to train acoustic output; combining a CTC loss function with cross entropy loss training to realize acoustic and text information fusion; in a model training or reasoning stage, an audio partitioning mode and a KV cache technology are adopted to realize efficient streaming identification; and the recognition result can be obtained while speaking, and after the calling is finished, the large model quickly completes the subsequent autoregression text reasoning based on all cache information, and outputs a high-precision recognition text. According to the invention, compatibility of high precision and streaming experience is realized.

To provide a mixing system 1 for a power storage device that efficiently homogenizes multiple types of powder.SOLUTION: A mixing system 1 for a power storage device includes a measuring portion 10 that stores multiple types of powder P measured at a predetermined ratio, a supply portion 20 that is arranged below the measuring portion 10 and supplies the powder P to a kneading portion 30, and the kneading portion 30 that is connected to the supply portion 20 and kneads the powder P supplied from the supply portion 20. The measuring portion 10 includes a lower opening 10c that opens downward, a shutter 11 that is arranged at an opening edge 10d of the lower opening 10c, and a control portion 13 that opens and closes the lower opening 10c by sliding a shutter 11 in an opening / closing direction A. The opening speed, which is the speed at which the shutter 11 moves in the opening direction B, is set on the basis of the volume ratio of the powder P in each of multiple compartments obtained by dividing the powder P stored in the measuring portion 10 into multiple compartments in the opening / closing direction A.SELECTED DRAWING: Figure 1

The invention discloses a radioactive liquid activity detection method, device and equipment, and relates to the field of nuclear energy. The method comprises the following steps: acquiring a to-be-detected water sample, and respectively inputting the to-be-detected water sample into a detector to obtain a detector original pulse signal and a detector fast signal corresponding to the to-be-detected water sample; performing FPGA time window coincidence processing based on the detector original pulse signal and the detector fast signal to obtain a new energy spectrum corresponding to the to-be-detected water sample; obtaining a preprocessed theoretical energy spectrum template, and inputting the theoretical energy spectrum template and the new energy spectrum into the peak decomposition network model to obtain a characteristic peak area list of the target nuclide; and obtaining an efficiency curve of the detector, and obtaining an activity detection result of the target nuclear element in the to-be-detected water sample based on the characteristic peak area list of the target nuclide and the efficiency curve. According to the method, the final result is determined by combining the theoretical energy spectrum template, the original pulse signal of the detector and the fast signal of the detector, so that the spectrum unfolding error of the overlapping peak can be reduced, and the recognition accuracy of the mixed system is effectively improved.

The invention relates to the technical field of environmental analytical chemistry, and discloses a thymol phenolphthalein-TBPE double indicator-based cyanide titration detection method and system, and the method comprises the following steps: adjusting a water sample to be detected to an alkaline pH interval to construct a detection matrix; the method comprises the following steps: introducing a double-indicator system composed of thymol phenolphthalein and tetrabromo phenolphthalein ethyl ester according to a specific ratio into a detection matrix, and constructing a spectrum background for masking yellow interference of sulfide by utilizing the blue color development characteristic of thymol phenolphthalein; dropwise adding a silver nitrate standard solution into the mixed system to execute a complex reaction; according to the method, a spectrum background shielding field is constructed, chromaticity response of a system in a specific wave band is monitored in real time, and when a chromaticity mutation signal from green to bluish violet is captured, a titration end point is judged, and the cyanide concentration is calculated. High-precision anti-interference detection on cyanide in a complex high-turbidity matrix is realized, and the sensitivity and accuracy of end point recognition are improved.

The invention provides a water pollution real-time detection and early warning method based on self-adaptive spectral feature fusion, relates to the technical field of environmental monitoring, and aims at spectral data of different incident angles through a self-adaptive segmented spectral enhancement algorithm, a feature enhancement strategy is dynamically adjusted, complementarity of multi-angle spectral information is effectively mined, and the real-time detection and early warning of water pollution are realized. Therefore, the precision and the anti-interference capability of heavy metal ion concentration detection are remarkably improved. And the heavy metal recognition model carries out accurate correction on the spectrum superposition effect and matrix interference in the heavy metal mixed system through the spectrum interference suppression factor, so that the robustness and reliability of concentration detection are further improved. Rapid detection and real-time early warning of pollutant concentration are realized, and the problem of low detection precision caused by mutual interference of spectral characteristics of mixed pollutants of heavy metal ions (especially chromium ions and nickel ions) in industrial wastewater can be solved to a certain extent.

This invention relates to a polyurethane foam material, its preparation method, and its application. The method includes the following steps: (1) preparing a polyol solution with toluene, and then mixing the polyol solution with an aqueous solution of particulate material to obtain an emulsion; (2) adding isocyanate and a catalyst to the emulsion and stirring evenly to obtain a mixed system; (3) foaming the mixed system to obtain a polyurethane foam material. This invention overcomes the shortcomings of existing polyurethane foaming processes that require the use of surfactants (foam stabilizers) as emulsifiers, to stabilize foam and adjust cell size, and the difficulties in material stirring and dispersion caused by high solution viscosity. This invention provides a method for preparing a polyurethane foam material that is surfactant-free, has low solution viscosity, and is safe and efficient. The polyurethane foam prepared by this invention has excellent performance, small foam pore size, and a wide range of applications.

The invention provides a lithiated clay mineral PVDF-based composite solid-state electrolyte membrane, a preparation method and application thereof, and a quasi-solid-state battery, and belongs to the technical field of solid-state lithium batteries. The preparation method comprises the following steps: mixing lithium halide, clay minerals and water for the first time, and carrying out ion exchange reaction to obtain lithiated clay minerals; mixing lithiated clay minerals, PVDF, organic lithium salt and an organic solvent for the second time to obtain composite slurry; and applying the composite slurry to the surface of a substrate, and carrying out thermocuring to obtain the lithiated clay mineral PVDF-based composite solid electrolyte membrane. The lithiated clay mineral is introduced into a mixed system of PVDF and organic lithium salt, so that the crystallinity of PVDF can be effectively reduced, an amorphous region is increased, conversion of PVDF crystals to beta-type PVDF is promoted, and the dissociation process of the lithium salt in the electrolyte is promoted; meanwhile, the lithiated clay mineral is introduced, so that the ionic conductivity can be obviously improved, an electrochemical window is widened, the mechanical property is improved, and the growth of lithium dendrites is inhibited.

The invention relates to the technical field of in-vitro diagnostic kits, in particular to hollow porous monodisperse carboxyl polystyrene microspheres, a preparation method and application of the hollow porous monodisperse carboxyl polystyrene microspheres in a kit for quantitatively detecting MxA. The preparation method of the microspheres comprises the steps that firstly, hydrophilic polystyrene microspheres are prepared to serve as stable particles; then fully mixing the Pickering particles with a first oil phase to form Pickering stable particles; then a surfactant and a second oil phase are added, the mixed system is stirred at a high speed, and the second oil phase permeates into the surfaces or pores of Pickering stable particles through interface interaction and molecular diffusion; under the action of an initiator, the polymeric monomers are subjected to a polymerization reaction, the low-boiling-point organic solvent is evaporated out along with temperature rise, and a polymer with a core part of a hollow structure and a shell layer of a porous structure is formed; and adding a carboxyl-containing functional monomer to form a hydrophilic polymer chain on the surface of the polymer, thereby finally obtaining the hollow porous monodisperse carboxyl polystyrene microspheres.

Mixing systems that include a mixer housing and a plurality of roller assemblies for mixing and processing materials is disclosed. Each roller assembly includes a roller that extends between sidewalls in the mixer housing and rotates to mix an additive into the material and to carry agglomerated solids toward a discharge of the mixing system. Each of the rollers may have a protrusion geometry formed in the outer contact surface, where each protrusion geometry is complementary to an adjacent roller.

The invention provides a method for separating sericin from silk degumming wastewater, which comprises the following steps: adding a cross-linking reagent into the silk degumming wastewater, uniformly mixing to obtain a mixed system, adding acid into the mixed system to adjust the pH value of the mixed system to 1.5-4.5, and keeping the mixed system at 30-80 DEG C for 10-90 minutes; adding a bridging reagent into the mixed system, uniformly mixing, standing to obtain a precipitate, and separating the precipitate to obtain the sericin, so that the problems that the sericin in the silk degumming wastewater of enterprises is difficult to recover, the cost is high, the COD value of the wastewater is high, secondary pollution is easily generated in the recovery process and the like at present are solved.

In some examples, a mixing device is configured to receive a fluid flow in an inlet section and accelerate the fluid flow in a nozzle section fluidically coupled to the inlet section. The nozzle device is configured to discharge the fluid flow to an outlet section. The outlet section includes one or more suction ports configured to draw a material into the fluid flow via the suction ports. In some examples, the mixing device is configured to be secured to a container configured to hold a medical solution comprising the fluid flow and the material. In some examples, the mixing device is included in a mixing system configured to produce a medical solution.

The invention discloses a three-sleeve micro-channel jet reactor which effectively solves the problems that a high-viscosity mixing system is difficult to disperse and poor in mixing and heat exchange efficiency. In dispersing and mixing, a first middle pipe is provided with a plurality of first conical holes, fluid flows through the first conical holes to generate a jet effect, turbulent flow is enhanced, laminar flow of a high-viscosity system is broken, and mixing is promoted; a first arc-shaped flow guide plate on the outer wall of the first inner pipe guides first inner annular space fluid, changes a flow field, increases turbulence and shearing, and strengthens mixing. In the aspect of heat exchange, a three-sleeve structure is adopted, the first sleeve section and the second sleeve section are respectively provided with an inner pipe, a middle pipe, an outer pipe and corresponding annular gaps, the second inner pipe is communicated with the first inner pipe, and the second middle pipe is communicated with the first middle pipe, so that the inner annular gaps are communicated. The heat exchange area is increased through the multi-annular-gap structure, fluid can fully exchange heat when flowing in different annular gaps, convective heat transfer is enhanced through flowing of multiple strands of fluid, and then the overall heat exchange efficiency is improved.

The invention discloses a (Fe (OH) 2) ((OH) 0.25 (H2O) 0.5) / W18O49 composite material as well as a preparation method and application thereof, and belongs to the technical field of functional materials. The preparation method comprises the following steps: uniformly mixing and stirring cyclohexanol, acetylacetone and absolute ethyl alcohol, adding tungsten hexachloride, uniformly stirring at room temperature, then adding ferric trichloride, uniformly stirring at room temperature, carrying out hydrothermal reaction, washing and drying to obtain the (Fe (OH) 2) ((OH) 0.25 (H2O) 0.5) / W18O49 composite material. A mixed system of cyclohexanol, acetylacetone and absolute ethyl alcohol is utilized to synergistically solve the problems of advanced hydrolysis and agglomeration of metal ions; the oxygen vacancy of the W18O49 accelerates the conversion of the sodium polysulfide, and the Fe (OH) 2 derivative strengthens the chemical anchoring of the sodium polysulfide, thereby realizing the synergy of the anchoring and rapid conversion of the NaPSs. When being used as a sodium-sulfur battery positive electrode material catalyst, the catalyst shows excellent catalytic performance and rate capability, and still has the capacity of 420 mAh g <-1 > after circulating for 25000 circles under the large current density of 10 A g <-1 >. The strong adsorption characteristic of the hydroxylated iron-based component and the high catalytic activity of W18O49 are utilized to form a synergistic effect, and a new scheme is provided for breaking through the technical bottleneck of an RT Na-S battery.

The application discloses a pinacine alkyl tetrahydrocarbazole fluorescent probe capable of detecting cell lysosome polarity and a preparation method and application thereof. 9-(3-(dimethylamino)propyl)-3,3-dimethyl-2,3,4,9-tetrahydro-1H-2,4-bridged methylene carbazole-6-formaldehyde is used as raw material, and condensation reaction is carried out with 1,3-indan dione to obtain compound 2-(2-(9-(3-(dimethylamino)propyl)-3,3-dimethyl-2,3,4,9-tetrahydro-1H-2,4-bridged methylene carbazole-6-yl)vinyl)-1-indene-1,3(2H)-dione (TC-AP-ID), and the probe can specifically detect the polarity of cell lysosomes. In a mixed system of 1,4-dioxane and water, with the increase of the polarity of the system, the fluorescence color of the probe gradually changes from orange to red, and the fluorescence intensity significantly decreases. The probe has the advantages of simple synthesis, good selectivity, high sensitivity, good biocompatibility, low toxicity and the like, can be applied to targeted detection of the polarity of cell lysosomes, and has a good application prospect.

The invention discloses an interfacial tension prediction method and device based on machine learning and molecular dynamics, and relates to the technical field of molecular dynamics simulation. The method comprises the following steps: constructing a mixed system model comprising CO2, surfactant molecules and crude oil, defining related parameters of a surfactant as a variable set, simulating by adopting molecular dynamics software, acquiring simulation data and interfacial tension data, and preprocessing; and taking the temperature, the pressure and the variable set as input characteristics, taking the interfacial tension as a target variable, and training a LightGBM model to obtain a prediction model. Each particle represents the configuration of one surfactant, the prediction model is used for obtaining the predicted interfacial tension corresponding to each particle, the speed and position of the particles are iteratively updated, and the optimal configuration of the surfactant for minimizing the interfacial tension is obtained. The problem of low oil exploitation efficiency caused by multiple exploitation operations due to poor oil displacement effect caused by incapability of accurately predicting the interfacial tension is solved.

The utility model relates to a mixing system for various high-flow gases and semiconductor process equipment. The system has the advantages that the first gas input module is communicated with the first flow control modules, the second gas input module is communicated with the second flow control modules, the second flow control modules are used for controlling flow at the same time, the flow control precision is improved, and then the concentration precision is improved; the first gas mixing module is respectively communicated with the first flow control module and the second flow control module, and the first gas and the second gas are primarily mixed through the first gas mixing module, so that the concentration uniformity of the whole system is improved; the second gas mixing module is communicated with the first gas mixing module, and the second mixed gas obtained by primary mixing is finely mixed, so that the concentration uniformity of gas mixing is further improved.

The invention belongs to the technical field of lithium salt purification, and discloses a lithium extraction method and a lithium extraction device. The method comprises the following steps: providing a lithium-containing mixed salt; contacting the lithium-containing mixed salt with an organic solvent to form an organic solution rich in lithium salt and a mixed system containing an undissolved sodium salt solid; and carrying out interface evaporation on the mixed system to remove part of the organic solvent and promote the precipitation of the sodium salt, and enriching the lithium salt in the residual liquid phase to realize the separation of the lithium salt and the sodium salt. The method provided by the invention can realize high-efficiency and high-selectivity separation of the lithium salt and the sodium salt.

The invention relates to an O3-phase layered oxide positive electrode material and a preparation method and application thereof, and belongs to the technical field of sodium ion batteries. The preparation method comprises the following steps: S1, dissolving a sodium source, a nickel source, an iron source, a manganese source and a doped metal source in water, and uniformly stirring in a water bath at 40-60 DEG C to obtain a precursor solution; s2, adding a complexing agent into the precursor solution, and heating and stirring to slowly evaporate water until a mixed system becomes thick, so as to obtain sol; s3, under the condition of 200-350 DEG C, the sol is subjected to dehydration, decomposition and self-propagating combustion, and precursor powder is obtained; and S4, performing grinding and heat treatment on the precursor powder to obtain the O3-phase layered oxide positive electrode material. The O3-phase layered oxide positive electrode material, the sodium ion battery positive electrode prepared from the O3-phase layered oxide positive electrode material and the sodium ion battery prepared from the O3-phase layered oxide positive electrode material have the excellent characteristics of long cycle life, high rate capability (quick charge and quick discharge), high capacity and stable voltage output.

Disclosed is an ergonomic device for mixing fluids with controlled metering, provided with at least a mixing system adapted to allow an automatic mixing in predetermined quantities of an additive fluid with a primary fluid. The device includes: at least a first coupling flange and a second coupling flange, provided with a plurality of connection systems, which may be located in the zone, and seals adapted to contain fluid leaks; a substantially cylindrical body of the device adapted to house a mixing system; a mixing mechanism consisting of an axis and a plurality of blades; at least one ergonomic grip; possibly an integrated train of reduction gears which transmits the correct torque and number of revolutions to the pump; at least one gear pump or equivalent device; possibly a gearbox; and a final metering nozzle.

The invention discloses a waste lithium battery recovery co-processing technology, and relates to the technical field of lithium battery recovery, the waste lithium battery recovery co-processing technology comprises the following steps: uniformly mixing and coating a composite processing slurry with electrode fragments, black powder and a current collector mixture obtained by disassembling a waste battery to form a precursor blank, and roasting the precursor blank to obtain the lithium battery. The method comprises the following steps: carrying out solid-liquid separation, impurity removal and surface structure optimization on a solid-liquid mixed system obtained after the reaction, obtaining a leaching solution and a solid intermediate product, and recycling the leaching solution and the solid intermediate product through one or more recycling methods. And carrying out selective recovery and productization processing on the pretreated leachate and solid intermediate products. According to the treatment process, through the links of slurry composite treatment, precursor blank heat treatment, roasting reduction, solid-liquid separation, optimization pretreatment and the like, the metal recovery rate and the product purity are improved, environmental pollution is reduced, and the resource utilization efficiency and the environmental protection property are effectively improved.

The invention relates to the technical field of biochemical substance separation and concentration, and discloses a concentration method of biochemical substances. According to the method, the technical target is realized through seven systematic steps: preparing a biocompatible deep eutectic solvent, constructing a water phase-DES two-phase system, preparing a phase antagonistic biosurfactant mixed system, dynamically regulating and controlling an interface, sequentially migrating and separating biochemical substances, performing multi-stage enrichment and collection, and recycling DES. According to the method, through innovative regulation and control on the interface property and the time dimension, the problem of high-selectivity separation of tiny biochemical substances with polarity difference is effectively solved, the separation purity and the recovery rate are remarkably improved, meanwhile, the biological activity is kept, and a green and sustainable technical solution is provided for efficient concentration of sensitive biochemical substances; the concentration method of the biochemical extract comprises the following steps: taking animal organs or tissues without human beings, and extracting bioactive components in the animal organs or tissues to be used for preparing medicines for treating or preventing cardiovascular and cerebrovascular diseases.

The invention relates to a method for synchronously preparing metastannic acid through ultrasonic enhancement and hydrolysis of low-concentration nitric acid, and belongs to the technical field of metastannic acid preparation. The preparation method comprises the following steps: slowly adding high-purity tin sheets into a dilute nitric acid solution in batches under the stirring condition at the temperature of 35-60 DEG C, and uniformly mixing to obtain a mixed system; and at the temperature of 35-60 DEG C, ultrasonic waves are applied to the mixed system for an ultrasonic enhanced oxidation dissolution-hydrolysis reaction for 30-50 min, so that tin sheets are oxidized and dissolved and are synchronously hydrated to generate metastannic acid precipitates, solid-liquid separation is carried out, solids are sequentially washed and dried, and a high-purity metastannic acid product is obtained. A passivation layer on the surface of the tin sheet is destroyed by utilizing the mechanical effect of ultrasound, and mass transfer is accelerated; the ultrasonic cavitation effect is used for promoting particle refinement and gel network depolymerization, and tin ion hydrolysis is promoted. The method is carried out at normal pressure, low acidity and low temperature, no nitrogen oxide brown smoke is generated in the whole reaction process, the metastannic acid yield is larger than or equal to 95%, and the method has the advantages of being mild in reaction, environmentally friendly, high in efficiency and good in product purity.