1561results about How to "Improve response" patented technology

The invention discloses a big data analysis-based early warning method for abnormal emission of pollution facilities. The method comprises the following steps of S1, collecting data and constructing a data set; s2, storing and preprocessing a data set; s3, constructing a space-time propagation network of the external events by using the graph neural network model; s4, modeling and predicting the time sequence features by using a mixed depth generation model; s5, analyzing the causal relationship between the external event and the facility emission behavior through a causal inference model; s6, adopting a Bayesian optimization algorithm based on uncertainty estimation of a strategy to dynamically adjust an emission early warning threshold value; s7, generating a new abnormal emission mode label by using a self-supervised learning model and a few-sample learning technology; and S8, adopting an interpretable artificial intelligence technology to generate an abnormal source tracing report, and providing coping suggestions and action schemes. According to the method, the early warning of the abnormal emission of the pollution facilities is realized by utilizing a cross-time-space event inference and self-supervised learning method.

The invention discloses piggy creep feed containing composite flavone. The piggy creep feed is prepared from the following raw materials in parts by weight: 13 to 20 parts of expanded corn, 10 to 25 parts of corn, 6 to 13 parts of broken rice, 8 to 12 parts of flour, 8 to 15 parts of whey mist, 3 to 8 parts of soy protein concentrate, 5 to 10 parts of extruded soybean, 0.7 to 3 parts of soya-bean oil, 7 to 12 parts of 46.5-percent bean pulp, 2 to 5 parts of fish meal, 2 to 5 parts of plasma protein powder, 0.3 to 0.7 part of mountain flour, 0.5 to 1.0 part of calcium hydrophosphate, 0.05 to 0.5 part of lysine, 0.05 to 0.3 part of threonine, 0.1 to 0.3 part of sodium chloride, 0.1 to 0.8 part of compound flavone premix compounds, 0.15 to 0.3 part of zinc oxide, 0.03 to 0.06 part of calcium propionate, 0.02 to 0.04 part of ethoxyquin and 1.0 part of suckling pig premix compounds. The invention also discloses a preparation method. The intestinal tract health and the production performance of weaned pigs can be improved.

The invention provides antibacterial polypropylene plastic, and aims to obtain a composite antibacterial agent with the advantages of an inorganic antibacterial agent and an organic antibacterial agent by compounding the inorganic antibacterial agent and the organic antibacterial agent, and the antibacterial polypropylene plastic which is good in antibacterial property, good in migration resistance, good in mechanical property, good in mechanical property, good in mechanical property and the like is obtained by adding the obtained composite antibacterial agent into the polypropylene plastic. The invention discloses antibacterial polypropylene plastic with long-acting antibacterial property.

The invention discloses a catalyst used for preparing acrylic acid and butyl ester by the dehydration of butyl lactate and a preparation method thereof. The catalyst is a composite catalyst, comprising a main catalyst A and auxiliary catalysts B, C, D and E, wherein, A is calcium sulphate, B is sulphuric acid, C is phosphate, D is alkaline matter and E is promoter. The preparation method comprises the steps as follows: five compositions A, B, C, D and E are sufficiently mixed, baked for 2-10 hours at the temperature of 200-800DEG C and formed for standby. The catalyst has high catalytic activation; under the catalysis of the catalyst, the molar yield reaches 75.1 percent and the molar selectivity of the acrylic acid and butyl ester reaches 71.5 percent. The preparation method has the advantages that the crystal structure of the main catalyst can be improved so as to be beneficial for carrying out the reaction; and the introduction of different auxiliary catalysts and quantities is helpful to improve the conversion ratio of the raw material and the product selectivity and is beneficial for improving the strength of the catalyst.

Methods and kits are provided for diagnosing of neuropsychiatric syndromes concurrent with SLE (NPSLE) and for determining whether an SLE subject is at risk of developing a neuropsychiatric disease.

The invention relates to the technical field of flame retardants, in particular to a phosphorus-nitrogen synergistic flame-retardant biomass flame retardant and application thereof. A conventional reaction type phosphorus-nitrogen flame retardant is huge in structure and large in steric hindrance and cannot be completely dissolved in an epoxy resin material system, the obtained flame-retardant epoxy resin is poor in transparency, and the mechanical property is greatly reduced. In order to solve the problems, the invention provides the phosphorus-nitrogen synergistic flame-retardant biomass flame retardant which is obtained by sequentially carrying out simple one-pot synthesis reaction on furfural and furfural derivatives with 2-amino-1, 3, 4-thiadiazole and DOPO, and the flame retardant is simple in structure, small in steric hindrance, easy to completely dissolve in epoxy resin, good in flame retardancy and good in flame retardance. The obtained flame-retardant epoxy resin is better in transparency, flame retardance and mechanical property.

The invention provides a redox imidazole covalent organic framework material as well as a preparation method and application thereof, belongs to the technical field of material preparation and photocatalytic preparation of hydrogen peroxide, and aims to solve the technical problem of low activity of a current covalent organic framework in preparation of hydrogen peroxide. The preparation method of the imidazole-connected redox type imidazole covalent organic framework material comprises the following steps: respectively reacting a reactant 2, 7-di-tert-butylpyrene-4, 5, 9, 10-tetraketone monomer with 4, 4 ', 4', 4 ', 4', 4 ', 4', 4 ', 4', 4 ', 4', 4 ', 4', 4 ', 4', 4 ', 4', 4 ' The preparation method comprises the following steps: mixing 4, 4 '-(pyridine-2, 4, 6-triyl) tribenzaldehyde and a tri (4-formylphenyl) amine monomer, adding a solvent and a catalyst, uniformly stirring, and reacting to obtain the redox type imidazole covalent organic framework material after the reaction is finished. The application comprises the following steps: adding the covalent organic framework, oxygen and the sacrificial agent into water, and reacting under the irradiation of visible light. The preparation method is green, environment-friendly, simple and easy to implement, the prepared material has good thermal stability, and efficient visible light photocatalysis preparation of hydrogen peroxide can be achieved; meanwhile, the catalyst can be recycled and has good photocatalytic stability.

The invention relates to a catalyst for ethylene oxide ring-opening polymerization and a preparation method thereof, and belongs to the technical field of high polymer material synthesis, and the catalyst is a composite structure based on a silicon dioxide nanoparticle loaded bimetal organic complex; a modified nitrogen-containing polydentate ligand is prepared by adopting a special method, is coordinated with metal ions through covalent bonds and is loaded on silicon dioxide nanoparticles; by utilizing the high dispersity and stability of the silicon dioxide nanoparticles and the synergistic catalytic effect of the bimetal organic complex, the catalytic effect is effectively improved, the polymerization process is accelerated, the polymerization stability is enhanced, the polymerization molecular weight is improved, and the distribution is narrow.

The invention provides an anti-corrosion Teflon coating as well as a preparation method and application thereof, and belongs to the technical field of coatings. The preparation method comprises the following steps: irradiating polytetrafluoroethylene micro-powder, performing graft modification on the irradiated polytetrafluoroethylene micro-powder and glycidyl methacrylate, reacting with phosphorus oxychloride and polydopamine modified graphene, adding into a Teflon primer, and uniformly stirring and mixing to obtain the anti-corrosion Teflon coating. The anti-corrosion Teflon coating prepared by the invention has good high-temperature resistance, corrosion resistance, rust resistance, mechanical properties, wear resistance, scratch resistance, medium resistance and the like, can effectively resist high-wear-resistance environments such as sliding friction, impact friction and cavitation friction and high-corrosion environments such as acid media and alkaline media, and has a wide application prospect.

The invention discloses a solid-liquid mixing chemical reaction kettle, and belongs to the field of chemical reaction kettles.The solid-liquid mixing chemical reaction kettle comprises a kettle body, a mixing motor is fixedly installed on the kettle body, a rotating cylinder is fixedly installed at the driving end of the mixing motor, a material conveying assembly is arranged on the rotating cylinder, and the material conveying assembly comprises a connecting piece fixedly installed on the rotating cylinder; a feeding barrel is fixedly installed on the connecting piece, a feeding component is installed on the feeding barrel, an extrusion component is installed in the feeding barrel, an adjusting assembly is arranged in the feeding barrel, a reciprocating lead screw is fixedly installed at the lower end of the rotating barrel, and a stirring assembly is arranged on the reciprocating lead screw. Through cooperation of the mixing motor and the first stirring rod, the acid sensor can rotate and perform vertical reciprocating motion to uniformly monitor the overall pH value of a solid-liquid mixed material in the equipment, and meanwhile through cooperation of the first stirring rod, the second stirring rod and the two mixing plates, the overall pH value uniformity of the solid-liquid mixed material is improved.

The utility model discloses a full-automatic whole blood sample pretreatment device for separating plasma through immunomagnetic beads. The full-automatic whole blood sample pretreatment device comprises a plasma separation mechanism for extracting a plasma sample from a whole blood sample, a conveying mechanism for conveying a blood collection tube and a sample cup, and a feeding mechanism for providing the sample cup, the plasma separation mechanism comprises a sample loading and shaking module for uniformly mixing a whole blood sample in the blood collection tube, a puncture sampling module for collecting the whole blood sample or the plasma sample, and a magnetic separation module for separating the plasma sample; the magnetic separation module comprises an oscillation assembly, a magnetic attraction assembly and a reaction cup, and freeze-dried immunomagnetic beads and an antibody reagent are pre-stored in the reaction cup. The device provided by the utility model can be used for comprehensively and automatically pretreating a whole blood sample and improving the quality and the efficiency of plasma separation.

The invention discloses a sewage treatment tank for steel structure production, and belongs to the technical field of sewage treatment tanks, the sewage treatment tank comprises a tank body supported and placed above the ground, the upper end of the tank body is fixedly provided with a support frame, the middle position of the upper end of the support frame is fixedly provided with a motor, and the output end of the motor is fixedly provided with a stirring shaft; meanwhile, two medicament hoppers are symmetrically and fixedly mounted on the support frame; the material control assembly is mounted below the supporting frame and is used for controlling intermittent feeding of the medicament hopper; the defoaming assembly is arranged on the inner side of the upper part of the tank body; the fixed frames are uniformly and fixedly mounted on the outer side of the lower part of the stirring shaft, movable cylinders are telescopically mounted on the outer sides of the fixed frames, and gas transmission assemblies are arranged on the stirring shaft, the fixed frames and the movable cylinders; the mud scraping plate is fixedly mounted at the lower end of the stirring shaft. According to the sewage treatment tank for steel structure production, intermittent chemical feeding can be carried out, sewage and chemicals can be fully stirred to react, and automatic defoaming can be achieved in the stirring process.

The invention provides a method for efficiently synthesizing basic nickel carbonate, and belongs to the technical field of chemical preparation. Comprising the following steps: (1) preparing a mixed solution of sodium carbonate and sodium hydroxide; (2) under low-temperature and high-speed stirring conditions, dropwise adding a nickel salt solution into the mixed solution, adding a competitive adsorbent, adjusting the pH value of the solution, then heating, continuing stirring reaction, separating the competitive adsorbent by a magnet, centrifuging, washing and collecting prepared primary basic nickel carbonate; and (3) recrystallizing the primary basic nickel carbonate in an ethanol water solution, and drying to obtain the basic nickel carbonate. According to the preparation method disclosed by the invention, the content of impurity ions in the product is reduced, so that the high-purity basic nickel carbonate can be prepared, the synthesis efficiency is high, the production cost is relatively low, the method is green and environment-friendly, the competitive adsorbent can also be repeatedly utilized and recycled, the production cost is reduced, and the method has a wide application prospect.

The invention provides a composite exciting agent and application thereof, and relates to the technical field of exciting agents, and the composite exciting agent comprises an alkaline exciting agent, a calcium source exciting agent and an auxiliary exciting component. Industrial solid waste materials such as the slag, the fly ash and the steel slag can work cooperatively in the same system, the gelling performance, the mechanical strength and the durability of the material are remarkably improved, and the purposes of solid waste resource utilization and low-carbon environmental protection are achieved.

The invention belongs to the technical field of ethyl acetate production, and particularly relates to energy-saving ethyl acetate production equipment and method.The equipment comprises a reaction kettle, a stirring shaft is rotationally arranged in the middle of the lower end face of the inner cavity wall of the reaction kettle, stirring blades are arranged on the two sides of the stirring shaft, and feeding hoppers are arranged on the left side and the right side of the upper end of the reaction kettle; a valve is arranged on the feeding hopper, a discharging pipe is arranged in the middle of the lower end of the right side of the reaction kettle, and an anti-blocking ejection type throwing-out mechanism used for adding a catalyst is arranged on the reaction kettle. By utilizing the anti-blocking ejection type throwing-out mechanism, after a solid granular catalyst is added into the blanking barrel, the catalyst can be thrown out into the inner cavity of the reaction kettle through the through holes under the action of centrifugal force, so that the catalyst is uniformly distributed in the inner cavity of the reaction kettle, and the phenomenon that the catalyst is accumulated at a certain position in the inner cavity of the reaction kettle and is difficult to block can be avoided. The contact between the stirring blades and the catalyst is insufficient, and the stirring effect is influenced.

The invention discloses a rare-earth metal arylamine group compound as well as preparation method and application thereof. The invention discloses the rare-earth metal arylamine group compound which is characterized in that a general formula of the rare-earth metal arylamine group compound is (2,6-R12PhNH)5LnLi2(THF)2, wherein Ln is a rear-earth metal selected from one of neodymium, samarium, ytterbium or yttrium; R1 is selected from one of hydrogen, methyl or isopropyl. The rare-earth metal arylamine group compound has the advantages that the rare-earth metal arylamine group compound has a definite structure; raw materials used in the preparation method are simple, easily obtained and cheap; the reaction process is simple and easily operated; the rare-earth metal arylamine group compound product is conveniently purified and the yield of the product is high; the rare-earth metal arylamine group compound has a high activity when acting as a single component catalyst to catalyze a hydrogen phosphine reaction of aldehyde or ketone and phosphite ester; the use amount of the catalyst is less; the yield is high; a substrate has wide universality; a new and simple method is provided for synthesis of a-hydroxyphosphonate.

The invention relates to the field of air filtration, in particular to a method for rapidly preparing ZIF-8 / polypropylene melt-blown cloth fiber membranes in batches at low cost. Aiming at the problems of high cost, long preparation time, complex process and the like of the existing method for growing ZIF-8 on the surface of polypropylene melt-blown cloth to improve the air filtering performance, the invention provides a method for rapidly preparing ZIF-8 / polypropylene melt-blown fiber membranes in batches at low cost. The preparation method comprises the following steps: firstly, pretreating the surface of polypropylene melt-blown cloth by using an inorganic aqueous alkali solution, then sequentially putting the melt-blown cloth into a zinc ion aqueous solution and a 2-methylimidazole / N, N-dimethylformamide mixed aqueous solution under an ultrasonic condition, and drying to prepare the ZIF-8 / polypropylene melt-blown fiber membrane. According to the preparation method, water is taken as a main solvent, and a small amount of N, N-dimethylformamide is added into the water, so that rapid growth on polypropylene melt-blown cloth at a small molar ratio of 2-methylimidazole to zinc nitrate hexahydrate is realized, and the preparation method is suitable for large-scale industrial production for air filtration.

The invention relates to a terminal equipment intelligent fault diagnosis method based on electric power internet of things edge computing. The method comprises the following steps: constructing a cloud edge interconnection architecture; in a data acquisition stage, real-time denoising and standardization processing are carried out by utilizing an edge computing layer, and data availability and access speed are guaranteed by adopting an edge caching technology; data from different sensors are integrated by using a data fusion technology, the accuracy of fault detection and diagnosis is improved, multi-source data association analysis is applied, and multi-angle early warning is performed for abnormal behaviors; event mode identification and processing are realized on an edge calculation layer by using CEP, and potential fault signals are quickly responded; all transmission data of the communication layer uses an end-to-end encryption protocol to ensure data security, and edge device intrusion detection and firewall protection are implemented to prevent hostile attacks. According to the invention, the accuracy and efficiency of power equipment fault diagnosis are improved, and the safety and operation stability of the system are remarkably enhanced.

The invention provides a method for preparing a lithium slag-based molecular sieve by melting lithium slag with assistance of eutectic salt, and relates to the technical field of molecular sieves. The method comprises the following steps: carrying out acid pickling pretreatment on a lithium slag raw material to obtain pretreated lithium slag; co-grinding and uniformly mixing the pretreated lithium slag and eutectic salt, and reacting at 200-350 DEG C for 2-6 hours to obtain eutectic lithium slag; carrying out aging treatment and crystallization treatment on the eutectic lithium slag, carrying out solid-liquid separation, washing the solid to be neutral, and drying to obtain a lithium slag-based molecular sieve; wherein the eutectic salt comprises an alkali solvent and an auxiliary salt, the alkali solvent is sodium hydroxide, and the auxiliary salt is at least one of chlorine salt, villiaumite, carbonate, sulfate and nitrate; the molar ratio of the alkali flux to the auxiliary salt is (4-19): 1. According to the method, the eutectic salt system is introduced in the lithium slag alkali fusion stage, meanwhile, the molar ratio of the alkali flux to the auxiliary salt in the eutectic salt is controlled to be (4-19): 1, the alkali fusion reaction temperature is reduced, the reaction of the lithium slag and alkali is promoted, the molecular sieve yield is increased, the product morphology can be regulated and controlled, and a specific molecular sieve can be formed in a guiding mode.

The invention discloses a brain-like edge calculation-driven multi-mode intelligent security method and system, and aims to improve the security capability in a complex dynamic scene. According to the method, multi-modal data of videos, audios, sensors and the like are collected, preprocessing is carried out by utilizing a brain-like edge computing gateway, dynamic behavior characteristics are extracted, secondary confirmation is carried out through a lightweight visual large model, and then formal early warning is generated. And the system executes intelligent linkage operation according to the early warning information risk level, and records false alarm information for model optimization. According to the invention, brain-like calculation and multi-modal fusion are adopted to improve the recognition precision, edge calculation reduces delay, an intelligent closed loop realizes differentiated treatment, a low-power design and a modular architecture reduce the cost, and the system has a self-learning capability. The defects of an existing security and protection system in the aspects of dynamic behavior recognition, response speed, disposal intelligence, cost control and the like are effectively overcome. The system is suitable for scenes such as a campus and a community, and provides an accurate, efficient and intelligent security solution.

The invention relates to a construction method of an anti-typhoon sea wave sea-crossing steel trestle and platform adjacent to a residential building. The construction method comprises the steps that firstly, deep fusion application of BIM and VR is conducted; step 2, surveying and setting out; step 3, embedding steel bars and pouring strip-shaped concrete; fourthly, the steel pipe piles are transported and lengthened; fifthly, steel pipe piles are driven; sixthly, parallel connection and diagonal bridging construction is conducted; seventhly, bearing beams are installed; eighthly, longitudinal beams are installed; ninthly, the distribution beams are installed; tenthly, bridge deck slabs and guardrails are installed; and 11, an intelligent monitoring and early warning system.

The invention discloses a method for preparing gamma-aminobutyric acid through whole-cell catalysis, and relates to the technical field of gamma-aminobutyric acid preparation, and the method comprises the following steps: culture medium preparation, microbial culture, thallus preparation, catalytic conversion, reaction liquid pretreatment, vacuum concentration, crystallization purification and drying. Concentration treatment is carried out in a gradient temperature setting mode in the vacuum concentration step, on one hand, low energy consumption is facilitated, on the other hand, the situation that a small amount of impurities in a sample are changed due to the temperature is prevented, the solubility of aminobutyric acid is reduced after cooling, crystals are separated out more easily, and the quality of the product is improved. In addition, through temperature gradient setting in the microbial culture step and temperature reduction after induction, correct folding of protease can be promoted, then the activity of unit protease is increased, the reaction effect is improved, and therefore the purity and the finished product yield of gamma-aminobutyric acid are improved.

The invention discloses a tannic acid modified lignin phenolic resin antibacterial adhesive and a preparation method thereof, and belongs to the technical field of bio-based adhesives. Alkali lignin is used as a raw material to prepare lignin nano-particles, then ferric trichloride and tannic acid are used for modifying the lignin nano-particles, and the tannic acid modified lignin phenolic resin antibacterial adhesive is prepared. Gallotannic acid / iron complexed lignin nano-particles are obtained, the gallotannic acid / iron complexed lignin nano-particles, phenol, formaldehyde and alkali liquor are mixed, and the lignin phenolic resin adhesive is prepared through an addition condensation reaction. The lignin phenolic resin adhesive prepared by the invention can realize high-proportion phenol substitution, has a good photo-thermal antibacterial effect, and provides a new way for development of an antibacterial environment-friendly adhesive.

The invention discloses an electrocatalyst material for in-situ production of hydrogen peroxide through oxygen reduction as well as a preparation method and application of the electrocatalyst material, and belongs to the field of organic wastewater treatment. MoS2 / Fe porous conductive particles and a high-molecular polymer are adopted as main components, and ethanedioate and polyacrylamide are combined as a dispersion auxiliary solvent and a pore-forming agent to form a three-dimensional composite conductive catalyst material; through ultralow-temperature freeze drying and microwave radiation technologies, the material structure is optimized, the catalytic reaction active sites are improved, and efficient electrocatalytic oxygen reduction for in-situ production of hydrogen peroxide is realized; the MoS2 / Fe porous conductive particles not only optimize the performance of the catalyst, but also realize high-valued utilization of solid wastes; the electrocatalyst material has excellent conductivity, catalytic activity and organic wastewater degradation capability, is stable in removal effect before and after use, can be repeatedly used for multiple times, reduces the use cost, and provides a wide application prospect for the fields of environmental protection, energy and the like.

The invention discloses a non-natural amino acid as well as a preparation method and application thereof. The novel non-natural amino acid is obtained by introducing long and soft side chain amino acid into a classical ASF side chain for the first time, the stability of the obtained non-natural amino acid is enhanced, the reaction radius of the non-natural amino acid is increased, the non-natural amino acid can touch amino acid residues with farther distance, and the reactivity is improved. In addition, compared with other covalent amino acids, the covalent amino acids have higher reaction rate and binding efficiency. The polypeptide and related drugs obtained based on the non-natural amino acid can be high in safety, can cross a blood brain barrier to realize brain targeting, and have better anti-tumor activity, so that the polypeptide and related drugs have extremely high medical value.

The invention discloses a regional power grid wind power generation power prediction optimization method which comprises the following specific steps: firstly, collecting data such as wind speed and wind direction through meteorological sensors arranged in a wind power plant and around the wind power plant, and carrying out cleaning and de-noising preprocessing; secondly, decomposing the meteorological data into intrinsic mode function components with different frequencies by adopting variational mode decomposition, constructing a convolutional neural network to perform feature extraction on each component, and adaptively adjusting the size of a convolution kernel according to the periodic characteristics of the data; then, a bidirectional long-short-term memory network based on an attention mechanism is used for fusing features, time sequence information is captured, power prediction is achieved through a full-connection neural network, and the weight of the FCNN is initialized through a random forest regression model to improve the initial performance of the model; according to the method, the prediction precision is improved through multi-level characteristic decomposition and a self-adaptive mechanism, the real-time response capability is good, and the requirements of the regional power grid for the precision and timeliness of wind power generation power prediction are met.

The invention provides a chitosan-based hydrogel optical fiber material as well as a preparation method and application thereof, and belongs to the technical field of composite materials. Chitosan is modified by methacrylic anhydride to obtain a matrix solution of the hydrogel optical fiber, the reaction performance of the chitosan is enhanced, the modified chitosan and acrylamide are mixed, the mixture is irradiated by ultraviolet light to obtain the hydrogel fiber, then the hydrogel fiber is coated with a polyacrylamide solution, the chitosan with a high refractive index is used as a fiber core, and the hydrogel optical fiber is prepared. Acrylamide with excellent mechanical property is used as a coating layer, the problem of large light loss caused by insufficient refractive index of most of hydrogel is effectively avoided, the optical performance of the hydrogel optical fiber is improved, the prepared chitosan-based hydrogel is used as an optical fiber material, the biocompatibility and biodegradability of a brain-computer interface can be improved, and the application prospect is wide. The preparation method is simple and easy to operate.

The invention discloses multifunctional acetylene carbon black as well as a preparation method and application thereof. The preparation method comprises the following steps: blending triethylenetetramine hexaacetic acid and acetylene carbon black in a mass ratio of (0.05-0.5): 100, and then carrying out esterification reaction under a vacuum condition, thereby obtaining the multifunctional acetylene carbon black. The preparation method comprises the following steps: modifying acetylene carbon black by adopting triethylenetetramine hexaacetic acid, and carrying out esterification reaction on triethylenetetramine hexaacetic acid with six carboxyl functional groups and acetylene carbon black with a hydroxyl functional group, so that the acetylene carbon black is modified, and the acetylene carbon black becomes multifunctional acetylene carbon black. The acetylene carbon black modified with a large number of carboxyl groups and amide groups on the semiconductive wrapping tape form rich hydrogen bonds, so that the compatibility of the acetylene carbon black and the semiconductive wrapping tape is improved.

The invention discloses a preparation method of a wool-based nitrogen-doped magnetic biochar material, which comprises the following steps: firstly, impregnating impurity-removed and scale-removed wool in a ferric chloride solution for coordination reaction to obtain a wool / iron complex; adding melamine, metal salt and the wool / iron complex into deionized water, sealing to form a closed environment, and then vibrating to uniformly disperse the metal salt and melamine on the surface of the wool; taking out and drying until no water exists to obtain a metal salt / melamine / wool mixture; carbonizing the mixture in an oxygen-free environment, and removing metal salt and impurities in the product; and drying to obtain the wool-based nitrogen-doped magnetic biochar material. The magnetic biochar material loaded with magnetic nanoparticles is prepared from wool, has excellent adsorption effect and adsorption catalysis effect on complex mixed dye liquor, achieves catalysis and adsorption synergistic integration, has superparamagnetism, and can realize solid-liquid separation and recovery by setting an external magnetic field.

The utility model relates to the technical field of tunnel engineering disease prevention and control, in particular to a tunnel deformation joint leakage water disease treatment structure under freeze thawing conditions, which comprises a stratum, a primary support and a tunnel lining are sequentially arranged on one side of the stratum, and a back-attached waterstop is arranged between the tunnel lining and the primary support; a deformation joint is arranged in the tunnel lining, and a steel plate middle-buried water stop belt is arranged in the middle of the deformation joint. A heating device is arranged in the area, located outside the steel plate middle-buried water stop belt, of the deformation joint, a drainage structure is arranged outside the heating device, and a water stop structure is arranged outside the drainage structure. And a gap in a deformation joint area between the steel plate middle-buried water stop belt and the back-attached water stop belt is filled with a grouting water stop material. The heating device is installed at the leakage position of the deformation joint, and grouting liquid reaction and plugging are promoted. A water stop structure is arranged on the downstream face of the deformation joint after grouting, a physical extrusion waterproof measure is formed, the deformation requirements of expansion caused by heat and contraction caused by cold and the like of the deformation joint can be met, and the water stop effectiveness is further improved.