24results about How to "System stability" patented technology

The invention discloses a chromium-free pretreatment solution, a chromium-free color-coated sheet and a preparation method of the chromium-free color-coated sheet, and belongs to the technical field of metal material surface treatment and protective coatings. The pretreatment liquid comprises a water-soluble carboxyl-containing organic matter, phosphate, a strong oxidant and inorganic acid, and is prepared through step-by-step mixing, and a compact pretreatment layer is formed on the surface of the hot-dip galvanized sheet by utilizing the synergistic complexing effect among the components. The pretreatment liquid is applied to a base plate in a roller coating mode, after curing is conducted at the temperature of 70-150 DEG C, chromium-free primer, finish paint and back paint are sequentially applied, and the chromium-free color-coated plate is obtained after baking. The obtained color-coated sheet has excellent corrosion resistance and adhesive force, the color-coated sheet is chromate-free in the whole process, and the dual requirements for environmental protection and performance in the fields of household appliances and the like are met.

The invention belongs to the technical field of synthesis of organic compounds, and relates to a synthesis method of drometrisiloxane, which comprises the following steps: carrying out Williamson etherification reaction on an ultraviolet light absorber UV-P and methyl allyl chloride to obtain an intermediate I; carrying out Claisen rearrangement reaction on the intermediate I to obtain an intermediate II; and carrying out hydrosilylation reaction on the intermediate II and heptamethyltrisiloxane to obtain dromethicone, the Williamson etherification reaction comprises the following steps: dissolving an ultraviolet light absorber UV-P in an alcohol ether solvent, and reacting with methyl allyl chloride under the condition of an acid-binding agent. According to the synthesis method of the drometrisiloxane, the etherification reaction is efficient, simple and convenient, the hydrosilylation reaction catalyst is high in efficiency, the solvent system is green and economical, the overall process is high in yield and purity, and the product quality is excellent.

This invention belongs to the field of pharmaceutical preparations, specifically relating to a method for preparing and applying a multivitamin for injection. The multivitamin for injection of this invention includes water-soluble vitamins, fat-soluble vitamins, glycocholic acid, phospholipids, and water. The preparation process of this invention does not involve the addition of organic solvents or surfactants. Technically, it achieves a safe and simple mixed micelle preparation process using only water as a solvent, reducing adverse reactions in clinical use and ensuring clinical safety. It has been industrialized and scaled up for production, and is a highly safe and stable multivitamin injection formulation that can be industrially produced.

The application is suitable for the technical field of inorganic substance preparation method, and provides a preparation method of bromine, which comprises the following steps: step one: a certain amount of sodium bromide and hydrobromic acid are added into a mother liquor pool and stirred to obtain a mother liquor; step two: a predetermined amount of stearic acid and polyvinylpyrrolidone are added; step three: preheating is carried out, and then the preheating is fed into an absorption tower; step four: the liquid at the bottom of the absorption tower flows into the upper part of a bromine evaporation tower, and is heated by steam in the bromine evaporation tower; water vapor and chlorine gas are introduced from the bottom of the bromine evaporation tower, and bromine steam enters the absorption tower; step five: the distillation acid liquid generated by the bromine evaporation tower flows into a preheater to be preheated; bromine steam flows out from the upper part of the bromine evaporation tower to obtain a bromine and water mixture; step six: the bromine and water mixture flows into a bromine water separation bottle to be separated, and bromine products are obtained, thereby, the bromine source is hydrogen bromide and sodium bromide; the stearic acid can effectively reduce the surface tension, so that the reaction is more uniform, and the system is stable.

The invention discloses a power failure protection system for a small AI cloud server, and relates to the technical field of direct-current power supply electronic equipment. A direct-current power supply input module in the system is connected with an external direct-current power supply; the system power supply module supplies power to the AI cloud server; the charging power supply generation module converts an input voltage into a stable voltage for charging; the farad capacitor charging and discharging module stores electric energy; when the full charge monitoring module monitors that the farad capacitor charging and discharging module is fully charged, a full charge signal is output; the power-down monitoring module outputs a power-down signal when monitoring that the external direct-current power supply is powered down; the CPU responds to the full electric signal and controls the charging power supply generation module to stop outputting; and responding to the power failure signal, executing a data protection process, controlling the standby power switch module to be switched on, and switching to the farad capacitor charging and discharging module to supply power to the AI cloud server, so that rapid seamless power switching and reliable data protection of the small AI cloud server during power failure are realized, the cost is low, and the reliability is high.

This invention discloses a cockroach attractant and its application. The attractant is characterized by the following raw materials: 5-hydroxyfurfural. The cockroach attractant of this invention solves the problem of poor effectiveness of existing cockroach attractants. It utilizes the synergy of the components to form an enhanced cockroach attraction system, which greatly improves the attraction effect of cockroaches.

This invention discloses a lutein composition for relieving eye fatigue and its preparation method, belonging to the field of functional foods. The process involves: reacting phycocyanin and kelp polyphenols to obtain modified phycocyanin; reacting fucoidan and β-glucuronidase to obtain modified fucose; reacting fish collagen peptides and zinc chloride to obtain collagen peptide-zinc chelate; reacting lutein silica cage complex and modified phycocyanin to obtain a first complex; reacting the first complex and modified fucose to obtain a second complex; reacting the second complex, collagen peptide-zinc chelate, and krill oil to obtain a lutein complex; reacting the second complex, collagen peptide-zinc chelate, and krill oil, then adding trehalose to obtain the lutein complex; and finally mixing the lutein complex with maltodextrin to obtain the lutein composition.

The application discloses a deep-groove polysilicon etching solution, which comprises an oxidizing agent, an inorganic acid, a pH regulator and a surfactant. The deep-groove polysilicon etching solution can efficiently etch polysilicon while ensuring the uniformity and smoothness of the etching surface, and can maximize the consistency of the etching of the upper and lower grooves and the smoothness of the surface. In the etching process, the inorganic acid ensures that the etching solution system is in an acidic environment, and the polysilicon is etched; the pH regulator avoids the large fluctuation of the pH of the etching solution, thereby ensuring the stability of the polysilicon etching process; and the surfactant reduces the surface tension of the etching solution, improves the wettability of the etching solution, ensures the consistency of the etching rate of the upper and lower grooves, and ensures the consistency of the groove aperture.

The application discloses a concentrated liquid for hydraulic support based on coal-based Fischer-Tropsch synthesis technology and a preparation method thereof, and particularly relates to the technical field of hydraulic support concentrated liquid, and comprises the following components: coal-based Fischer-Tropsch synthesis oil derivative lubricant 30-45%, gasification cinder modification additive 5-12%, composite antirust agent 8-15%, non-ionic emulsifier 10-18%, freeze-thaw stabilizer 3-8%, and water in excess. The concentrated liquid takes the Fischer-Tropsch synthesis oil derivative as a core lubricating component, and is combined with the gasification cinder modification additive and the like, so that the problem of soap precipitation caused by high-hardness mine water is effectively solved, the concentrated liquid has good freeze-thaw resistance and environmental protection, meets the current environmental protection standard, and is particularly suitable for the high-mineralization mine area environment in Shanxi.

The application provides a high-efficiency expansion culture method of umbilical cord blood gamma delta T cells and application thereof, and belongs to the technical field of biological medicine. Through a specific two-stage strategy of "initial induction culture + expansion culture", the application is simple in operation, stable in system, and high in success rate, effectively overcomes the defects of limited autologous blood source, unstable expansion and low cell activity in the prior art, and lays a foundation for large-scale preparation and allogeneic application of gamma delta T cells. The umbilical cord blood gamma delta T cells obtained by the method of the application are excellent in quantity, purity, activity and anti-tumor function, and have stronger tumor cell killing ability, and are especially suitable for adoptive immunotherapy. The application breaks through the technical bottleneck of the traditional culture system, provides a high-efficiency, stable and clinically convertible gamma delta T cell expansion scheme, and has important application prospect and market value.

This application relates to the field of daily chemical technology, specifically disclosing a herbal compound nasal congestion-relieving essential oil composition and its processing method. The composition is prepared from a compound nasal congestion-relieving base oil obtained by mixed extraction of Magnolia biondii, Xanthium sibiricum, and Angelica dahurica, menthol rosmarinic acid ester, a homologous regulator of esterase activity, natural borneol extracted from natural plants, and medium-chain triglycerides. The homologous regulator of esterase activity is selected from oleanolic acid or crataegolic acid. The preparation method is as follows: first, the compound nasal congestion-relieving base oil is prepared by supercritical extraction; then, menthol rosmarinic acid ester is obtained through enzymatic synthesis; subsequently, the base oil undergoes micro-trace enzyme anchoring modification; finally, the components are mixed through a gradient phase fusion process and bottled to obtain the finished product. This composition can be used to relieve nasal congestion symptoms caused by acute rhinitis and allergic rhinitis, and has the advantages of stable nasal congestion-relieving effect, long duration of action, and low mucosal irritation. The preparation method is green and environmentally friendly, the product has high purity, and good batch-to-batch consistency.

The invention relates to the technical field of medical drug preparation, in particular to a total glucosides of paeony nano preparation for treating inflammatory diseases and a preparation method of the total glucosides of paeony nano preparation. The nanogel dispersoid is formed by self-assembling molecules in a water phase through thermal induction gelatinization and a subsequent cooling process; the mass ratio of the total glucosides of paeony to the starch is (1: 10)-(1: 50); the average hydrated particle size of gel particles in the nanogel dispersion ranges from 80 nanometers to 300 nanometers, and the polydispersity index of the gel particles is smaller than 0.3. According to the total glucosides of paeony nano preparation for treating inflammatory diseases and the preparation method thereof, the process is simple, the cost is low, complicated equipment or organic solvents are not needed, the preparation is very suitable for industrial production, edible starch is taken as a carrier material, the biocompatibility is excellent, the safety is high, the enrichment of medicines at inflammatory parts can be effectively improved, the action time can be prolonged, and the application prospect is wide. Therefore, curative effect is improved, and administration frequency is reduced.

The application provides a kind of full solid waste roadbed cushion material and preparation method thereof, by breaking and screening coal-fired slag, the first slag, the second slag and the third slag are divided according to different particle size range, then the mixed slurry is obtained by wet grinding after mixing phosphogypsum, steel slag powder and lead-zinc tailings powder according to the preset weight fraction; then the required quicklime, the first slag, the second slag and the third slag are weighed according to the preset weight fraction, and the water reducing agent, the mixed slurry and the water are fully stirred after pre-stirring, to obtain the full solid waste roadbed cushion material. Through the above-mentioned mode, the synergistic effect between the raw materials can be effectively utilized, the formation of hydration products is promoted, and the heavy metal ions are effectively solidified, so that the cheap and difficult-to-handle solid waste material is prepared into the full solid waste roadbed cushion material with good mechanical properties and high stability, which has high economic and environmental benefits.

This invention discloses a cockroach attractant and its application. The attractant is characterized by the following raw materials: difurfuryl disulfide. The cockroach attractant of this invention solves the problem of poor effectiveness of existing cockroach attractants. It utilizes the synergy of the components to form an enhanced cockroach attraction system, which greatly improves the attraction effect of cockroaches.

This invention relates to the field of industrial organic waste gas purification and treatment technology, and particularly to an anti-adhesion absorbent liquid for high-temperature waste gas spray treatment in coating processes and its preparation method. The absorbent liquid consists of the following components by volume percentage: PEG600 13.4 vol%–22.0 vol%, Tween 80 2.8 vol%–6.0 vol%, triethanolamine 0.9 vol%–2.5 vol%, an alkaline co-solvent of anhydrous Na2CO3 or NaHCO3, and deionized water as the balance; wherein the sum of the volume percentages of PEG600, Tween 80, and triethanolamine is 17.1 vol%–30.5 vol%. Under simulated spray dynamic contact conditions (oscillation at 80°C), 10 mL can completely disperse 0.5 g–1.0 g of standard simulated pollutants (a mixture of benzoin oxide and tar solids); after absorption, the system pH ≈ 10 (sodium carbonate system) or pH ≈ 9 (sodium bicarbonate system). The absorbent of this invention comes into contact with high-temperature waste gas in the form of a spray and utilizes the high-temperature environment to enhance the dissolution and absorption effect. Even after gradual cooling, the system can still maintain uniformity and stability, without precipitation, stickiness, or adhesion to the wall, thus inhibiting adhesion and blockage from the source.

This invention relates to the field of detergent technology, specifically disclosing a highly active detergent composition containing succinic anhydride and its preparation method. The invention prepares the highly active detergent composition by hydrolyzing a small amount of alkenyl succinic anhydride to obtain succinic acid. The invention also provides a lignin-based surfactant to work in conjunction with the composition, effectively preventing the redeposition of dirt washed off the fabric, thus ensuring washing performance. The composition prepared by this invention can prevent the aggregation and precipitation of dirt particles during washing, ensuring the formula remains stable and does not separate throughout its shelf life and during washing, while improving detergency.

The invention relates to the technical field of mixed drinking tea beverages, and provides Wuniu early mixed drinking tea and a preparation method thereof. The preparation method comprises the following steps: carrying out pretreatment and deoxidation treatment on drinking water to obtain low-dissolved-oxygen softened water; wuniuzao black tea original leaves are subjected to fractional extraction with low-dissolved-oxygen softened water, and a tea base is obtained; preparing pretreated waxberry juice and early-fragrant pomelo juice; blending a tea base, the pretreated waxberry juice, early-fragrant pomelo juice, a sweetening agent, old wine sweat and low-dissolved-oxygen softened water to obtain mixed tea juice; and performing homogenization treatment and sterilization treatment on the mixed tea juice, and performing filling and sealing to obtain the Wuniu early-blending drinking tea. According to the preparation method disclosed by the invention, the problem of insufficient stability is solved on the premise of no preservatives, antioxidants and stabilizers through combination of various means such as water demineralization and deoxidation, segmented tea extraction, advanced deoxidation and anti-browning treatment of fruit juice, inert gas oxygen-controlled mixing and the like, and the color and flavor stability of the product in the shelf life storage process is improved.

This invention discloses a L-carnitine refining system, belonging to the field of L-carnitine refining. It includes an anode plate, a first cation exchange membrane, at least one repeating unit, a third cation exchange membrane, and a cathode plate arranged sequentially from left to right. The repeating unit includes a first anion exchange membrane, a second anion exchange membrane, and a second cation exchange membrane arranged sequentially from left to right. A first electrode chamber is formed between the anode plate and the first cation exchange membrane; a first recovery chamber is formed between the first cation exchange membrane and the first anion exchange membrane; a feed chamber is formed between the first anion exchange membrane and the second anion exchange membrane; a replenishment chamber is formed between the second anion exchange membrane and the second cation exchange membrane; a second recovery chamber is formed between the second cation exchange membrane and the third cation exchange membrane; and a second electrode chamber is formed between the third cation exchange membrane and the cathode plate. This invention replaces the bipolar membrane with a conventional anion / cation exchange membrane combination, reducing the loss of active ingredients to improve yield, and has low energy consumption.

This invention relates to the field of functional food technology and discloses a low-GI sugar-controlling beverage and its preparation method. The low-GI sugar-controlling beverage comprises 20-28 parts hawthorn concentrate, 4-9 parts astragalus concentrate, 3-9 parts yam concentrate, 2-9 parts rehmannia concentrate, 3-8 parts ophiopogon concentrate, and 2-8 parts microencapsulated nut powder; wherein the nuts in the microencapsulated nut powder are one or more of hazelnuts, pecans, almonds, cashews, or pumpkin seeds. This invention improves the utilization rate of medicinal components through enzyme-assisted extraction technology, solves the technical problems of nut addition through microencapsulation technology, and protects activity and optimizes taste through low-temperature vacuum concentration and precise pH control. Ultimately, it provides a stable, refreshing, and nutritionally complete low-GI compound beverage that meets the needs of people maintaining blood sugar balance.

The invention provides a preparation method of a pelvic inflammation cleaning oral liquid, which comprises the following steps: diluting clear paste obtained after water extraction and alcohol precipitation of pelvic inflammation cleaning medicinal materials, atomizing the diluted clear paste into 10-50 [mu] m liquid drops by a high-pressure nozzle, instantly freezing the liquid drops in liquid nitrogen at the temperature of-40 DEG C, and carrying out sublimation drying for 24-48 hours under the conditions that the vacuum degree is 10-50Pa and the temperature is-40 DEG C to-20 DEG C to obtain a raw material medicine. And finally, adding the flavoring agent and the preservative to prepare the composition. Compared with a traditional process, the method can improve the stability and the quality controllability of the oral liquid finished product, meanwhile, the degradation of effective components of the raw material medicines in the whole process of drying and moist heat sterilization can be inhibited from the source, and the retention rate of the effective components is remarkably improved to 95% or above.

This invention discloses a multi-colored artistic paint that does not require multiple color particles for tinting and its preparation method, comprising the following steps: adding 50-70 parts by weight of modified base paint and 10-20 parts by weight of continuous phase to 20-30 parts by weight of protective colloid solution, dispersing at high speed until a set fine particle state is achieved, then adding 1-5 parts by weight of pigment, stirring at low speed until uniform, and discharging. This invention simplifies the process of separate tinting and group granulation of color particles, requiring only the production of one white paint product. Tinting can be directly performed on the finished paint, and it can be applied directly after tinting, displaying the effect of multiple color particles, with a strong texture, good feel, certain thickness and toughness, good crack resistance and scratch resistance, achieving free tinting, and ready for immediate use.

This invention discloses a liquid crystal display (LCD) driving system with an intelligent switching drive mode strategy, belonging to the field of intelligent driving technology. It aims to solve the problem of making the selection and switching of display drive modes more convenient. This invention introduces a transition mechanism to prevent abrupt changes during switching, and uses closed-loop feedback to correct signals in real time to maintain accuracy. It monitors system status at high frequency across all dimensions, processes data in layers, and uses log-related feedback for decision-making, ensuring display quality and system stability. During decision-making, data is synchronized and aligned, and dynamic weight allocation combined with three-dimensional adaptation calculations increases hardware verification and optimization, improving user experience and the accuracy of drive mode decisions.

The application relates to the technical field of building adhesives, and particularly discloses a fire-retardant polyurethane two-component corner adhesive and a preparation method thereof; the fire-retardant polyurethane two-component corner adhesive comprises an A component and a B component; the A component comprises, in mass parts, first polyether polyol: 40-55 parts; first filler: 20-35 parts; first thixotropic agent: 1-5 parts; compounded fire retardant: 20-25 parts; modifier: 1-2 parts; catalyst: 0.004-0.008 parts; the B component comprises, in mass parts, curing agent: 35-45 parts; second polyether polyol: 1-5 parts; plasticizer: 8-12 parts; second filler: 40-50 parts; and second thixotropic agent: 1-2 parts; the fire-retardant polyurethane two-component corner adhesive has good fire-retardant function, high hardness, high toughness and high bonding strength; and the fire-retardant polyurethane two-component corner adhesive also has excellent sealing function, structure reinforcing function, shock-absorbing function, sound insulation function and heat insulation function.

This invention belongs to the field of paint removers and discloses a high-penetration modified water-based paint remover and its preparation method. The paint remover includes the following raw materials: deionized water, benzyl alcohol, formic acid, composite penetrant, sodium dodecylbenzenesulfonate, modified nano-Fe3O4, modified microporous starch, thickener, corrosion inhibitor, and defoamer. The modified nano-Fe3O4 is prepared by first preparing nano-Fe3O4, then forming a dense SiO2 shell on the Fe3O4 surface through tetraethyl orthosilicate hydrolysis, followed by surface treatment with a silane coupling agent, and finally grafting polyaspartic acid. The modified microporous starch is prepared by first preparing microporous starch using an enzymatic hydrolysis method, then loading molten microcrystalline wax and synergistic agents through a vacuum impregnation method, and finally cooling and solidifying. This invention, through the synergistic effect of the benzyl alcohol and formic acid main solvent system with modified nano-Fe3O4 and modified microporous starch, ensures efficient paint removal while providing good protection for the metal substrate.