85results about How to "Composition is stable" patented technology

The invention discloses carboxymethyl chitosan-hyaluronic acid-stem cell exosome eye drops as well as a preparation method and application thereof, and relates to the technical field of eye drops and medical biogel. The carboxymethyl chitosan-hyaluronic acid-stem cell exosome eye drops are prepared from tannic acid modified carboxymethyl chitosan and adipose tissue-derived stromal cell exosome freeze-dried powder, the carboxymethyl chitosan-hyaluronic acid-stem cell exosome eye drops provided by the invention can effectively treat xerophthalmia, and are stable in components, safe and reliable. The three components including the tannic acid modified carboxymethyl chitosan, the hyaluronic acid and the adipose tissue-derived stromal cell exosome coexist, so that the functions of all the components can be fully played, a synergistic effect is achieved, and a better treatment effect on xerophthalmia is achieved.

The invention discloses a molecular sieve loaded high-entropy alloy nanoparticle material and a preparation method thereof, and belongs to the technical field of nano materials. The preparation method comprises the following steps: adding a metal salt precursor into a mixed polyol solution of polyvinylpyrrolidone and L-ascorbic acid for reaction; then acetone is added, and the high-entropy alloy nano-particles are prepared; then uniformly mixing with a solvent and an alkaline solution, adding tetraethyl orthosilicate, and stirring to prepare high-entropy alloy-coated silicon dioxide powder; and finally, mixing and grinding with tetrapropylammonium hydroxide, adding water, standing, crystallizing, centrifuging and calcining a solid product, thereby obtaining the product. The preparation method comprises the following steps: by taking metal salt as a raw material and polyvinylpyrrolidone as a protective agent, preparing high-entropy alloy nanoparticles by utilizing a polyhydric alcohol reduction method, then preparing high-entropy alloy silicon dioxide by utilizing a Stober method, and finally preparing the high-entropy alloy silicon dioxide through hydrothermal synthesis. The molecular sieve nanoparticles prepared by the method are small in size, large in specific surface area, high in catalytic activity and good in dispersity.

The invention provides a traditional Chinese medicine processing process monitoring system and method based on an intelligent sensor, and relates to the technical field of traditional Chinese medicine processing monitoring, and the system comprises a sensor module, a data acquisition and transmission module, a central control unit and data processing module, a monitoring and early warning module, and a tracing management module. The sensor module comprises a temperature sensor, a humidity sensor, a pressure sensor, a photoelectric sensor, a chemical component sensor and a gas sensor; and early warning measures in the monitoring and early warning module comprise threshold early warning, trend early warning and intelligent early warning. By arranging the monitoring and early warning module, various parameters of traditional Chinese medicine processing can be effectively and strictly controlled in the traditional Chinese medicine processing process, meanwhile, an early warning function is set, when the parameters reach or reach threshold values set in advance, alarm reminding can be conducted in time, the ingredients of medicinal materials can be well stabilized, and then the quality of medicinal material processing is guaranteed.

The invention discloses a sulfur-doped carbon-based composite wave-absorbing material as well as a preparation method and application thereof. Sulfonated resin is used as a carbon source, is impregnated with a salt solution of iron, nickel, cobalt and other metals, and then is subjected to high-temperature carbonization in an inert atmosphere, so that the sulfur-doped carbon-based composite wave-absorbing material is prepared. The content of the magnetic components in the composite wave-absorbing material can be adjusted by adjusting the concentration of the metal salt solution, and the electromagnetic wave absorption performance can be further adjusted and controlled in a wide range. The raw material components are stable, the cost is low, and the preparation method is simple and suitable for industrial production; sulfur-containing sulfonated resin is used, after heat treatment, a defect and a functional group introduced by sulfur doping serve as a dipole center, dipole polarization is induced under a high-frequency electromagnetic field, and the dielectric loss capacity of the material can be improved; the composite wave-absorbing material has multiple electromagnetic loss mechanisms, and is wide in effective absorption frequency band, light in weight, thin in thickness and high in wave-absorbing performance.

The invention discloses a copper smelting method of an Ausmelt furnace without a top-blowing spray gun, and relates to the technical field of copper smelting of the Ausmelt furnace, and the copper smelting method comprises the following steps: (1) spraying coal powder and mineral powder into a molten pool through an ore gun and a coal gun of the Ausmelt furnace without the top-blowing spray gun; (2) a side-blowing combustion gun of the Ausmelt furnace without the top-blowing spray gun sprays fuel to the molten pool; and (3) when the copper matte reaches the target grade 58-62%, ending the reaction, recording the melt temperature distribution, measuring the viscosity of the slag, and taking the slag sample for analyzing the content of Fe3O4. The Ausmelt furnace without the top blowing spray gun comprises a flue, a baffle, a combustion gun, an ore gun and a coal gun, a flue is arranged on the upper portion of the furnace body, a baffle is arranged below the flue, combustion guns are symmetrically arranged on the furnace body above a slag layer, coal guns are symmetrically arranged on the furnace body at the junction of the slag layer and a molten copper bath, ore guns are symmetrically arranged on the furnace body at a molten copper bath layer, and pressure gauges are arranged on the ore guns and the coal guns.

The invention provides a preparation method and application of pinellia ternate exosomes, and belongs to the technical field of plant biologication.The preparation method comprises the following steps that 1, pinellia ternate sterile cluster buds are inoculated into a liquid culture medium to be subjected to intermittent immersion culture, and pinellia ternate cluster seedlings are obtained; or inoculating the callus of the pinellia ternate into a liquid culture medium, and performing intermittent immersion culture to obtain loose cells of the pinellia ternate; the ventilation time of the intermittent immersion culture is 3-20 min, the retention time is 5-30 min, the deflation time is 5-15 min, the immersion interval time is 2-8 h, and the cycle number is infinite. (2) after homogenating the pinellia ternate clustered seedlings or the pinellia ternate loose cells obtained in the step (1), separating pinellia ternate exosomes; pinellia ternate clustered seedlings or loose cells obtained by a gap immersion culture method are used as raw materials, and the extracted pinellia ternate exosome is stable in component, high in quality control degree, wide in application range, low in preparation cost and short in period.

The invention relates to an amorphous film and a preparation method and application thereof.The amorphous film is an AlSiC amorphous film and is composed of Al, Si and C. The preparation method of the amorphous film comprises the following steps that a target material is provided, the amorphous film is deposited on a base body through a magnetron sputtering method, and the amorphous film can be used as a surface protection material. The AlSiC amorphous film is formed by disorderly arranging three kinds of atoms of Al, Si and C, so that the AlSiC amorphous film has high strength, high hardness and high toughness, toughness integration of the amorphous film is achieved, and therefore when the AlSiC amorphous film serves as a surface protection material, the protection effect is good, and the service life is longer. Meanwhile, the AlSiC amorphous film is prepared through a magnetron sputtering method, the deposition rate is stable, and the AlSiC amorphous film obtained through deposition is uniform in component, compact in structure, few in defect, good in combination with a base body and high in adhesive force.

The invention relates to the technical field of sampling detection, in particular to a reaction kettle full-automatic hanging bottle type online sampling device which is provided with a sampling hanging bottle, a sampling box, a pre-sampling unit, an information monitoring unit, an online analysis unit and a sampling execution unit. The information monitoring unit is used for acquiring the stress value of the sampling hanging bottle in the sinking process of the reactant, a real-time stress value curve is drawn, and the online analysis unit is used for judging whether the reactant has a local enrichment phenomenon or not and determining the sampling position of the sampling hanging bottle for sampling. The lifting motor is controlled by the sampling execution unit to drive the sampling hanging bottle to sink to the sampling position for sampling, and the standing time of the sampling hanging bottle at the sampling position is adjusted, so that the sampling position of closed sampling is adaptively adjusted according to the component distribution state of reactants in the reaction kettle, and the sample data representativeness of sampling detection is improved.

The invention provides a circuit board electroplating device which comprises a conveying assembly, and the conveying assembly comprises a rack, an electroplating bath, a connecting column, a mounting cylinder, a synchronous electric cylinder, a connecting base, a mounting frame, a sliding block, a driving motor, a driving screw, a threaded hole, a mounting plate and a controller. According to the invention, the slot on the mounting plate is matched with the slidable adjusting rod, and the position of the adjusting rod can be accurately locked through the limiting screw hole and the limiting screw, so that the cathode clamp can be flexibly adjusted according to the size of the circuit board, and the cathode clamp clamping the circuit board is ensured to be completely immersed into an electroplating solution in an electroplating bath; meanwhile, the adjusting rod and the connecting block are quickly connected and separated through structures such as a pin rod and a spring, and a proper cathode clamp is conveniently replaced according to the specification of the circuit board, so that the adaptability is improved, the synchronous electric cylinder and the driving motor are uniformly regulated and controlled through the controller, accurate movement of the circuit board in the vertical direction and the horizontal direction is achieved, and the production efficiency is improved. All links from installation to electroplating are completed, manual intervention is reduced, and efficiency and accuracy are improved.

The invention provides an oxygen-vacancy-rich Bi5O7I microsphere piezoelectric-photocatalyst and a preparation method thereof, and belongs to the technical field of light pressure concerted catalysis, and the preparation method comprises the following steps: mixing Bi (NO3) 35H2O and PEG 6000 powder, dissolving in absolute ethyl alcohol, uniformly stirring, dropwise adding a NaI solution, uniformly stirring again, sequentially washing and drying to obtain a dried product, and calcining the dried product to obtain the oxygen-vacancy-rich Bi5O7I microsphere piezoelectric-photocatalyst. The Bi5O7I microsphere piezoelectric-photocatalyst rich in oxygen vacancy is obtained; according to the invention, richer oxygen vacancies are introduced into the Bi5O7I powder, the spectral absorption range of the piezoelectric-photocatalyst is expanded, and the concentration of current carriers is improved by utilizing the capturing effect of the oxygen vacancies on electrons, so that the photocatalytic, piezoelectric catalytic and light-pressure synergistic catalytic efficiency of the piezoelectric-photocatalyst is improved; the oxygen-vacancy-enriched Bi5O7I microsphere piezoelectric-photocatalyst prepared by the preparation method disclosed by the invention has efficient organic dye degradation performance, and the catalytic effect of the oxygen-vacancy-enriched Bi5O7I microsphere piezoelectric-photocatalyst is far superior to that of pure-phase Bi5O7I powder.

The invention provides a continuous fluid separation system for recovering lithium from mirabilite, and relates to the technical field of continuous fluid separation. A continuous fluid separation system for recovering lithium from mirabilite comprises a plurality of treatment subsystems, each treatment subsystem comprises an exchange area, a material washing area and an acid regeneration analysis area which are arranged in sequence, and each separation unit of the treatment subsystems is filled with a titanium adsorbent filler; the exchange area adopts a three-parallel two-serial feeding mode; gradient washing is carried out in a three-string mode in the material washing area; and the acid regeneration analysis area adopts a three-parallel analysis mode. According to the continuous fluid separation system for recovering lithium from mirabilite, the recovery rate of lithium can exceed 90%, continuous operation is achieved, product components and concentration are kept stable, and the use amount of washing water and an acid regenerant is greatly reduced.

The invention discloses magnesium aluminate spinel smelted by utilizing electric furnace fly ash and a preparation method of the magnesium aluminate spinel. Raw materials comprise industrial alumina powder, magnesium oxide powder, fly ash and an additional binding agent; according to the method, few raw materials are used, the technological process is relatively simple, the electric furnace fly ash serves as an ingredient to be formed and prefabricated into a green brick, the green brick is crushed and added into an electric arc furnace, stability of MgO and Al2O3 raw material components in the green brick is guaranteed, the defects that dust pollution is caused and SO2 and nitric oxide exceed the standard due to the fact that the fly ash is directly added into the electric arc furnace are overcome, and pollution to the environment is reduced; and the magnesium aluminate spinel raw material with more excellent performance can be produced, the electric furnace fly ash is consumed and recycled in batches, and the green development of the electric furnace smelting process is facilitated.

The invention belongs to the technical field of functional food, and particularly relates to a nutritional supplement composition containing various vitamins and mineral substances. The nutritional supplement composition comprises the following components: black pure fat chocolate, vitamin A, vitamin D3, vitamin E, vitamin B1, vitamin B2, vitamin B6, vitamin B12, vitamin C, folic acid, nicotinamide, biotin, calcium pantothenate, heavy magnesium carbonate, ferrous fumarate, zinc gluconate, sodium selenite, copper sulfate, potassium iodide, manganese gluconate and calcium carbonate. The preparation method comprises the following steps: preparing a powder premix; then adding the powder premix into the molten black pure fat chocolate and stirring; the materials are prepared into an inner core containing vitamins and mineral substances through a chocolate forming machine, and then the inner core is coated. The multivitamin mineral sugared pill product provided by the invention is good in taste and stable in effective components, and can effectively relieve fatigue, promote physical and psychological health, improve sleep and improve memory.

The invention discloses an efficient preparation method of a vanadium catalyst for sulfuric acid production, which comprises the following steps: preparing vanadium water, silica sol suspension and 1 + 1 dilute sulfuric acid solution, and converting the mass of each raw material into volume; the retention time from the time when the raw materials enter the liquid-liquid phase microreactor to the time when the reaction product flows out is controlled to be 5-10 min, the raw materials are injected into the liquid-liquid phase reactor through a constant flow pump, the reaction temperature is 50-60 DEG C, the frequency of a reactor motor is 10-25 Hz, and a vanadium-containing active material is prepared; the vanadium-containing active material and a carrier diatomite are mixed to prepare a pre-forming material, the pre-forming material is subjected to extrusion forming to obtain a vanadium catalyst semi-finished product, and the vanadium catalyst semi-finished product is dried and roasted to obtain a vanadium catalyst finished product. The vanadium catalyst prepared by the invention has the advantages of good dispersity of active components, high catalyst activity, long service life, short time consumption and low energy consumption.

The present invention relates to a method for freezing and refrigerating chestnut kernels for preservation, and the specific method includes: sterilizing the chestnut kernels with a composite specific bactericide in coordination with slightly acidic electrolyzed water after pre-treatment of the chestnut kernels, then color-protecting the chestnut kernels with L-cysteine ​​in combination with cold shock treatment, and finally slightly freezing and air conditioning after treating the chestnut kernels with chitosan coating. The present invention uses a specific bactericide needle combined with the synergistic effect of slightly acidic electrolyzed water to completely kill the pathogenic bacteria of chestnuts during storage; L-cys is used to change the molecular spatial structure of PPO that causes browning during chestnut kernel storage, thereby achieving the purpose of inhibiting PPO activity; a microenvironment with high CO2 and low O2 is formed on the surface of the fruit by using a chitosan coating treatment method, and combined with cold shock treatment, the respiration intensity can be reduced to inhibit the activity of PPO polyphenol oxidase and POD peroxidase, while also inhibiting the activity of PAL phenylalanine ammonia lyase, thereby reducing the synthesis of phenolic substances.

The invention relates to an etching solution for a quartz crystal. The etching liquid is prepared from the following components in percentage by mass: 20% of hydrofluoric acid, 15% of nitric acid, 0.15-0.7% of an additive and the balance of ultrapure water. The four-component additive is prepared from sodium butyl naphthalene sulfonate, PE6400, 1-butyl-3-methylimidazolium tetrafluoroborate and 4-mercaptobutyric acid. Wherein the sodium butylnaphthalenesulfonate prevents particles generated in the etching process from being gathered and deposited, and the clearness and uniformity of the etching liquid are kept. PE6400 has both hydrophilicity and hydrophobicity, and has the effects of assisting in dissolving, dispersing and defoaming. The cooperation of the two can significantly reduce the residual protrusions after the quartz crystal is etched, reduce the roughness, and make the surface smoother. The 1-butyl-3-methylimidazolium tetrafluoroborate and the 4-mercaptobutyric acid cooperate to control lateral erosion of quartz, and a symmetrical V-shaped structure is generated.

Provided is a method for improving thermal stability of a composition comprising flavin-dependent lactate dehydrogenase (LDH). The composition comprising LDH is allowed to coexist with one or more of an anion selected from the group consisting of a monocarboxylic acid, a dicarboxylic acid, a tricarboxylic acid, a tetracarboxylic acid, a polycarboxylic acid, phosphoric acid, sulfuric acid or a salt thereof; a monosaccharide; a disaccharide; a nonionic polymer; and an ionic polymer. It is possible to reduce deactivation of LDH during preparation and storage of a lactate measuring reagent, a lactate assay kit, a lactate sensor and fuel cell, reduce the amount of LDH to be used; as well as improve thermal stability, storage stability and measurement accuracy of the measuring reagent, assay kit and sensor.

The invention relates to a green and efficient production method of nodular cast iron or spheroidal graphite cast steel profiles, which adopts a process route of a hydrogen-rich blast furnace, an electric arc furnace, a converter, a vacuum refining furnace, a ladle refining furnace and a continuous casting machine to produce nodular cast iron / spheroidal graphite cast steel new steel material profiles. In the production process, a large amount of clean low-carbon hydrogen energy is used for replacing an original carbonaceous material to serve as a reducing agent, on one hand, the ton iron carbon emission of the product is reduced, on the other hand, oxygen, sulfur, phosphorus and other impurity elements in the material are deeply removed, and meanwhile liquid solidification of the nodular cast iron / spheroidal graphite cast steel material is achieved in a continuous casting mode; the production efficiency is improved; and the energy consumption and carbon emission of the product are further reduced.

The invention belongs to the technical field of high polymer material synthesis, and particularly relates to a low-temperature continuous preparation device and method for high-temperature-resistant nylon, and the method mainly comprises the following steps: a neutralization salt forming stage, a first-stage tubular reactor stage, a second-stage tubular reactor stage and a third-stage tubular reactor stage, therefore, continuous feeding of raw materials such as binary acid and diamine and continuous output of high-temperature-resistant nylon products are realized. The device and the method are suitable for preparing homopolymerized and copolymerized high-temperature-resistant nylon, such as semi-aromatic nylon, alicyclic nylon and nylon containing naphthalene rings, are wide in application range, low in polymerization temperature, short in polymerization time, stable in composition, good in product quality, low in yellow index, high in whiteness and stable in performance, realize backflow of diamine and recovery of materials, and are suitable for industrial production. Generation and emission of three wastes are reduced, and the production cost is reduced.

This invention belongs to the field of metal refining processes and provides a parallel flow copper electrolytic refining process. The process involves setting up a balance tank outside the copper electrolytic cell, with crude copper anode plates and stainless steel cathode plates alternately arranged inside the cell and guided by flow guides. A cathode-wall flow channel is formed between the flow guides and the cell wall. Slit nozzles are set on the flow guides along the length of the cell, allowing the electrolyte to be sprayed from the cell side onto the cathode surface and form a parallel flow along the cathode wall. An anode collecting tank is set at the bottom of the copper electrolytic cell. A hydrodynamic barrier is constructed by adjusting the pressure difference between the cathode-wall flow channel and the anode collecting tank, inhibiting the migration of anode sludge to the cathode. The impurity-rich electrolyte from the anode collecting tank is introduced into an online impurity removal unit for treatment and then returned to the balance tank. After mixing with the electrolyte in the cathode circulation branch, it re-enters the cathode-wall flow channel, thereby obtaining cathode copper with uniform composition and controlled impurities.

The invention discloses an indoxacarb nano red fire ant poison bait and a preparation method and application thereof, belonging to the technical field of red fire ant control. The indoxacarb nano red fire ant poison bait is composed of the following raw materials in mass percentage: 0.05% indoxacarb, 10% sweetener, 10% attractant, 10% adhesive, 1.32% to 2.15% nano carrier, 0.09% to 0.15% fatty acid, and 67.65% to 68.54% filler. The indoxacarb nano red fire ant poison bait provided by the invention has a good control effect on red fire ants, and has the advantages of fast effect, strong lasting effect, thorough control, and small amount of application, and the ingredients are stable, not easy to volatilize, safe and non-toxic, and the damage to the surrounding environment and animals and plants of the application is small, which meets the characteristics of green pesticides; the preparation method of the indoxacarb nano red fire ant poison bait provided is simple and easy to operate, does not require high temperature and high pressure, has low requirements on equipment, does not generate toxic and harmful substances, and is green and environmentally friendly.

The invention relates to a powdery lime slurrying system aiming at Bayer process red mud dealkalization, which belongs to the technical field of aluminum oxide production and comprises a lime bin, slurrying reaction equipment, a buffer tank, a settling tank and an overflow tank, a discharging pipe of the metering conveying device and a slurrying water inlet pipe are both connected with the feeding end of the slurrying reaction device, the slurrying reaction device is connected with the buffer tank, the buffer tank is connected with the settling tank through a vertical buffer pump arranged on the top, and the settling tank is connected with the overflow tank through an overflow pipe. The method solves the problems that in the Bayer process aluminum oxide production process, after the red mud dealkalization procedure is added, the dosage of lime milk is sharply increased, and the treatment capacity of a traditional ashing system is insufficient, meanwhile, graded utilization of high-concentration lime milk and low-concentration lime milk is achieved, and the production efficiency of lime milk preparation is improved.

The invention discloses a fuel supply system, method and equipment of an engine and a medium. The fuel supply system comprises a first fuel supply pipeline and a second fuel supply pipeline, a second delivery pump for pumping a second fuel; the adding device is provided with a second channel communicated with the output end of the second conveying pump and the first fuel supply pipeline, and the flow area of the second channel is adjustable; the control module is electrically connected with the second conveying pump and the adding device and used for determining the target adding amount of the second fuel based on the engine operation working condition; determining target traffic based on the target additive amount; and based on the target flow, the flow area of the second channel or the pumping pressure of the second conveying pump is controlled, so that the second fuel is conveyed to the first fuel supply pipeline at the target flow until the adding amount of the second fuel in the first fuel supply pipeline reaches the target adding amount. By the adoption of the system, diesel-free cold start is achieved, the complexity and cost of the system are reduced, the pause feeling in the fuel conversion process is eliminated, the combustion stability of an engine is improved, and the service life of the engine is prolonged.

The invention provides an agricultural portulaca oleracea enzyme as well as a preparation method and application thereof, and belongs to the technical field of agricultural biological products. The method comprises the following steps: crushing fresh purslane plants, mixing the crushed purslane plants with brown sugar and tap water according to a mass ratio of 5: 1: 20, sequentially carrying out aerobic fermentation for 4-6 weeks and anaerobic fermentation for 6-8 weeks under a dark condition at 20-30 DEG C, and carrying out solid-liquid separation after the fermentation is finished, so as to obtain filtrate, namely the agricultural enzyme. The pH value of the enzyme is 3.5-4.5, the organic matter content is larger than or equal to 30 g / L, and the enzyme contains salicylic acid, indoleacetic acid, lactic acid, asparagine and rich mineral elements. The product can be used in the planting industry, is applied in an irrigation mode after being diluted, is suitable for vegetable seedling raising and green cultivation of crops such as tomatoes and pakchoi, and can effectively improve the seedling strengthening index, yield and fruit quality. According to the method, high-value resource utilization of the purslane is achieved, and good ecological and economic benefits are achieved.

The invention discloses a hydrophilic modified polysulfone resin with carboxyl side groups and a preparation method thereof, and relates to the technical field of polysulfone. The invention adopts deionized water as a salt-forming solvent to carry out a salt-forming reaction of a bisphenol monomer. After the salt-forming reaction is completed, the salt-forming agent of the system is reacted, and after the alkalinity is weakened, an NMP solvent is added to collect water, thereby reducing the interference of NMP decomposition on the carboxyl group in the salt-forming stage, and the ratio of the diphenolic acid connected to the molecular chain is consistent with the feed ratio, so that the formed hydrophilic modified polysulfone resin component is more stable; at the same time, before the end-capping, the side chain carboxyl group forms a stable coordination complex, so that the diphenolic acid type hydrophilic polysulfone of the invention can be end-capped, greatly reducing the content of the phenolic end group with poor thermal stability, so that the original color can be maintained during extrusion granulation.

The present invention provides a skeletal muscle senescence delaying formula food for middle-aged and elderly people, the composition comprises lactoferrin and pyrroloquinoline quinone disodium salt, and the weight ratio of the lactoferrin to the pyrroloquinoline quinone disodium salt is 20: 1-30: 1. The composition can be applied to preparation of the middle-aged and elderly formula food for delaying skeletal muscle senescence, and the middle-aged and elderly formula food containing the composition has the effects of delaying skeletal muscle senescence and preventing sarcopenia, and remarkably improves muscle quality, muscle strength and muscle functions.

The invention relates to the technical field of surface engineering, and particularly discloses an alkaline nickel preplating solution maintenance system and method. Comprising a sampling unit for sampling a solution in a pre-plating tank, an analysis unit for analyzing the solution taken by the sampling unit, a control unit connected with the analysis unit and the sampling unit, and a liquid adding unit connected with the control unit and used for adding liquid into the pre-plating tank, and the control unit controls the liquid adding unit to add liquid into the pre-plating tank according to the analysis data provided by the analysis unit, so that the plating liquid in the pre-plating tank is in a process requirement range. According to the method, the alkaline pre-nickel-plating main salt component in the alkaline pre-nickel-plating solution can be in a process requirement range for a long time, and the state of the plating solution is effectively monitored, so that the binding force of a chemical nickel-plating layer is ensured.

The invention discloses trophoblasts for amplification of clinical-grade tumor infiltrating lymphocytes and a preparation method and application of the trophoblasts, and the preparation method comprises the following steps: 1) placing tumor tissues in a complete culture medium, placing the complete culture medium in a 5% CO2 incubator at 37 DEG C, and carrying out wet culture for 2-3 weeks; after finishing, sorting the lymphocytes by magnetic beads; (2) adding the lymphocytes into an amplification culture medium for culturing, transferring the lymphocytes into a cell culture bag after the total number of the cells is greater than 107-108, culturing until the total number of the cells reaches 109-1011, and centrifugally collecting the cells to obtain tumor infiltrating lymphocytes TIL; 3, 10-50 Gy X rays or gamma rays are used for irradiating the tumor infiltrating lymphocytes to damage DNA of the tumor infiltrating lymphocytes to prevent cell division, and the trophoblasts are obtained.According to the method, a large number of amplified TIL is used for replacing PBMC to serve as the trophoblasts for immune cell proliferation, and the lymphocyte trophoblasts which are easier to obtain and better in nourishing effect are provided.

The present invention proposes a fat stem cell composition for wound repair and a preparation method and application thereof, which belongs to the field of stem cell technology. Fetal bovine serum, dexamethasone, penicillin, streptomycin, collagen, magnetic particles, and substance P are added to DMEM culture medium to prepare a culture medium for low-frequency magnetic field culture of fat mesenchymal stem cells, separation, obtaining a stem cell solution, embedding to obtain stem cell microspheres, freeze-drying the supernatant to obtain paracrine culture material, and mixing with stem cell microspheres, hydroxypropyl methylcellulose, carboxymethyl chitosan, hyaluronic acid, glycerol, and stem cell microspheres to obtain a fat stem cell composition for wound repair, which has good effects of implanting damaged tissues, releasing nutrients, promoting new blood vessel formation, regulating oxidative stress and inducing anti-inflammatory reactions, and is helpful for wound repair. It can be converted into a gel phase at a skin epidermal temperature between 35-37°C, stabilizes components, and releases in a controlled manner.

The invention relates to the technical field of chemical pigment machinery, and particularly discloses an opposite-rolling laminated device for reducing the viscosity of fireproof paints.The opposite-rolling laminated device comprises a supporting seat, a recycling box is fixedly connected to the top of the supporting seat, an opposite-rolling box is fixedly connected to the top of the recycling box, and the bottom of the opposite-rolling box communicates with the recycling box; the device comprises a rolling box, one side of the rolling box is fixedly connected with a collecting box, the top of the rolling box is fixedly connected with a stirring device, the rolling box penetrates through and is fixedly connected with a discharging mechanism, and the inner wall of the rolling box is fixedly connected with a first rolling device, a second rolling device and a third rolling device. The movable end of the electric telescopic rod penetrates through the top of the opposite-rolling box and is fixedly connected with a spraying mechanism, the opposite-rolling stacked device for reducing the viscosity of the fireproof coating is provided with a stirring device, so that auxiliaries and raw materials can be fully stirred and mixed, and the viscosity of the coating is preliminarily reduced; therefore, waste of raw materials and influence of the raw materials on next rolling operation can be avoided.