813results about How to "Maintain integrity" patented technology

The invention relates to a PDF extraction method and system based on deep learning and layout analysis, and the method comprises the steps: obtaining a PDF file, carrying out the element recognition of a scanning version file and a text version file through an OCR technology and a deep learning model, and enabling the elements to comprise a text, a picture, a table and a formula; dividing a page of the PDF file into a plurality of logic blocks according to the identified elements, and determining a hierarchical relationship and a sequence; deleting elements without substantial help from the identified elements, and extracting the content of the document; performing page layout analysis according to the document content, and reordering and organizing each logic block to obtain a layout; document contents are classified and analyzed, and then classified storage is carried out; and according to user requirements, splicing the classified and stored document contents in a corresponding layout to generate a document in a target format. Compared with the prior art, efficient and accurate PDF extraction is achieved, and meanwhile the important structure and content of an original document are reserved.

The invention discloses a radiology report generation method based on semantic alignment, and belongs to the technical field of radiology report generation. The radiology report generation network constructed by the invention comprises a multi-scale feature extraction module, a cross-modal semantic alignment module and a Transform report generation module which are connected in sequence; the multi-scale feature extraction module comprises a convolutional neural network and a multi-scale local sparse attention module which are connected in sequence; the cross-modal semantic alignment module comprises an embedded layer, a multi-head attention module and a gating fusion module, wherein the multi-head attention module and the gating fusion module are connected with the embedded layer. The input end of the multi-head attention module and the input end of the gating fusion module are connected with the output end of the multi-scale local sparse attention module. The predicted radiology report generated by the radiology report generation method is good in quality.

The invention discloses a holographic display digital human speech recognition enhancement method based on multi-modal interactive learning, and the method comprises the following steps: S1, collecting and preprocessing data, and generating a multi-modal feature matrix; s2, inputting the multi-modal feature matrix into a self-adaptive multi-modal interaction kernel to generate multi-modal interaction features; s3, inputting the multi-modal interaction features into an emotion convolution block to generate semantic-emotion mapping features; s4, inputting the semantic-emotion mapping features into a cross attention generator, and outputting multi-modal fusion features; s5, inputting the multi-modal fusion features into a multi-modal fusion-decomposition two-way network, and generating multi-modal features after decoupling optimization; s6, inputting the multi-modal features into a holographic-speech symbiosis optimization module to generate speech recognition and holographic display data; and S7, performing parameter optimization by applying self-supervised learning and comparative learning strategies to realize self-adaptive adjustment. According to the invention, the enhancement of holographic display digital human speech recognition is realized by using a multi-mode interactive learning method.

The invention discloses a block chain-based performance-lossless watermark credible traceability method and system. The method comprises the following steps of: embedding extended watermark information based on distribution consistent sampling in a potential space of a generative model to obtain a generation content of an embedded watermark; converting the watermark metadata into a hash value, storing the hash value in a block chain, and executing node trust management and a shared data storage and consensus mechanism; inverting the generated content embedded with the watermark to extract watermark information and calculating a hash value, comparing the hash value with the hash value of the watermark information stored in the block chain, if the comparison is consistent, passing the watermark verification, and if the comparison is inconsistent, failing the watermark verification; and when the watermark verification fails, performing node signature verification, if the node signature verification fails or the data is abnormal, starting an on-chain traceability process, tracking a data generation path according to the watermark metadata, and searching an abnormal node or data transmission point. According to the method, lossless embedding, credible circulation and reliable traceability of watermark information can be realized while high quality of generated content is ensured.

The invention relates to the technical field of computing power infrastructure, and provides a document analysis method and device based on computing power resources of an intelligent computing center, and the method comprises the following steps: S1, obtaining a to-be-processed document in a first format, and converting the document in the first format into a document in a second format, S2, inputting the document in the second format into a layout recognition model, obtaining a layout recognition result of the document, and inputting the layout recognition result into a content recognition model to obtain content information of the document; and S3, combining the layout recognition result and the content information to obtain an analysis result of the document. Therefore, the layout recognition model and the content recognition model which are operated based on the computing power resources of the intelligent computing center are used for analyzing the document, the document analysis speed can be remarkably increased, and the text semantic understanding accuracy and the text information extraction accuracy are greatly improved.

The invention relates to the technical field of freeze-dried preparations, and provides exosome freeze-dried powder as well as a preparation method and application thereof. The exosome freeze-drying preparation is prepared by mixing an exosome solution and a freeze-drying protection solution and then freeze-drying the mixture, the concentration of the exosome solution in the mixed solution is 0.1-10% V / V, and the freeze-drying protection solution comprises 0.4-4% W / V of saccharides and 0.25-4% W / V of alcohols; the saccharide is trehalose, cane sugar or lactose; the alcohol is mannitol, sorbitol or a combination of mannitol and polyethylene glycol; and the solvent is sterilized water for injection or a PBS buffer solution. The exosome freeze-dried powder is stable in activity, small in irritation, good in safety and good in fibroblast proliferation promoting capacity, when the exosome freeze-dried powder is applied to supporting essence or masks in the medical beauty industry, the exosome activity of the exosome freeze-dried powder is still kept stable, and the application prospect is good.

The invention relates to the technical field of computer vision, and discloses a litchi fruit quality detection method and device, computer equipment and a storage medium, and the method comprises the steps: obtaining the variety of a to-be-detected litchi, and determining a specified excitation wavelength corresponding to the variety of the to-be-detected litchi; setting the excitation wavelength of fluorescence spectrum analysis equipment as the specified excitation wavelength; fluorescence spectrum data and multispectral image data of a plurality of different surface areas of the to-be-detected litchis are obtained respectively, the fluorescence spectrum data and the multispectral image data corresponding to the same surface areas are associated, and the sum of the different surface areas covers the whole surface of the to-be-detected litchis; inputting each group of associated fluorescence spectrum data and multispectral image data of the to-be-detected litchis into a pre-trained fruit quality prediction model, and outputting a quality degradation prediction result of the to-be-detected litchis; and rapid, accurate and lossless prediction of the quality condition of the litchi fruits is realized.

The invention provides a preparation system and method of porous electrode carbon. The system mainly comprises a two-section temperature-variable carbonization fluidized bed and an activation fluidized bed. According to the method, small-particle-size polymer particles are softened in the carbonization process and bonded with a large number of heat carrier particles to form composite particles, so that self bonding and excessive growth are avoided, and controllable carbonization is achieved in the two-section temperature-changing carbonization fluidized bed; and introducing the composite particles into an activation fluidized bed, carrying out high-temperature activation, and removing the heat carrier to obtain the porous carbon electrode carbon particles. According to the method, adhesion of polymer particles during carbonization is avoided, the problem of instability of superfine particle fluidization operation is solved, the links of grinding and heating and cooling are reduced, and the method has the advantages of being low in cost and capable of being continuously operated.

The invention relates to the field of polyurethane coating processing, in particular to a waterproof bio-based polyurethane coating and a preparation technology thereof.The waterproof bio-based polyurethane coating is prepared from, by weight, 25%-40% of castor oil polyester polyol, 15%-25% of isocyanate, 5%-10% of bio-based polybasic acid, 0.2%-0.6% of a catalyst, 0.5%-1% of a chain extender, 15%-20% of modified nanofiller, 3%-5% of a wetting agent and 1%-2% of a curing agent. By adopting the formula, the prepared waterproof bio-based polyurethane coating has good weather resistance, high and low temperature resistance, strength and waterproofness, and can be used in Tibet, Xinjiang, Inner Mongolia, Qinghai and other regions for a long time without aging, and the service life of the waterproof coating is prolonged.

The invention relates to the technical field of combustible gas detectors, in particular to a combustible gas detector with an underground Internet of Things function, which comprises a gas exchange seat, a mounting mechanism rotatably connected to the bottom of the gas exchange seat, a combustible gas detector main body fixedly mounted at the bottom of the gas exchange seat, and a fixing frame fixedly connected to the bottom of the gas exchange seat. A movable frame is arranged on the fixed frame in a sliding fit mode, a protective cover is rotatably connected to the interior of the movable frame, an automatic maintenance mechanism is rotatably connected to the movable seat, and in the using process of the combustible gas detector, dust on the surface of the gas sensor is cleaned and maintained regularly through the automatic maintenance mechanism; the dust on the surface of the gas sensor can be automatically cleaned by utilizing the brush frame which rotates and swings in a reciprocating manner, the sensor can accurately read the gas concentration, the possibility of false alarm and missing alarm is reduced, the manual cleaning frequency is reduced through an automatic maintenance mechanism, and the labor cost and the maintenance workload are reduced, so that the service life of the sensor is prolonged.

The invention discloses an intelligent self-adaptive cleaning system and method for a photovoltaic module, and mainly solves the problems that the cleaning effect of a photovoltaic module cleaning system on stains (such as bird droppings and oil stains) with strong adhesive force and fine dust particles is limited, and it is difficult to ensure that the surface of the module keeps good cleanliness all the time. The cleaning system comprises an environment sensing module used for detecting the cleaning state of the photovoltaic module, an intelligent cleaning module connected with the environment sensing module and used for executing the cleaning function, and self-adaptive control connected with the environment sensing module and used for controlling the intelligent cleaning module. And the energy recovery module is connected with the intelligent cleaning module and is used for realizing energy recovery and feeding back power supply to the environment sensing module. By means of the design, the multi-sensor fusion environment sensing technology and the intelligent cleaning technology are combined, the stain type and the pollution degree can be more accurately recognized, a targeted cleaning mode is adopted, and compared with a traditional cleaning technology, the cleaning effect is remarkably improved.

The invention relates to the technical field of computers, in particular to a fault report generation method based on the size of a dynamic window in an edge cloud scene, which comprises the following steps of: S1, performing data processing according to acquired data to obtain preprocessed data, and inputting the preprocessed data into a pre-training model for training to obtain an adjustment model; s2, multi-modal input data generates a multi-modal KV cache according to the adjustment model, encoding is carried out to obtain an encoding set, KV key value pairs are screened according to the encoding set, decoding is carried out after the KV key value pairs are combined, KV cache compression is carried out on the decoded data through Page Attelation to obtain matched compressed data, and a window is dynamically adjusted according to the compressed data; and S3, receiving second real-time operation state data of the edge equipment, generating a second historical fault report, and judging whether the second historical fault report meets the model requirements or not. Through LOOK-M and paged attention technologies, KV cache of a large model is reduced, memory use and calculation efficiency are optimized, model fine tuning is introduced, and it is ensured that a generated fault analysis report has high accuracy and real-time performance.

The invention discloses an automobile heat-insulating film and a preparation method thereof, and belongs to the technical field of heat-insulating films, and the heat-insulating film is prepared by introducing nanometer indium tin oxide, nanometer tungsten oxide, nanometer titanium oxide, nanometer zinc oxide and other nanometer oxides and combining with a modified material. The preparation method comprises the following steps: mixing nano oxide with water, performing ultrasonic dispersion, adding a coupling agent and a modified material to form composite slurry, mixing the composite slurry with polymers such as polyethylene glycol terephthalate and a plasticizer, coating the surface of glass with the mixture, and drying. Compared with the prior art, the obtained heat insulation film not only has excellent optical transparency and heat insulation effect, but also shows good mechanical property and environmental erosion resistance, and meets the strict requirements of modern automobiles on heat insulation and protection performance.

The invention discloses a carbon ceramic composite conductive microsphere, a ceramic resistor and a preparation method, and belongs to the technical field of production of special materials of electrical equipment, and the method comprises the following steps: sequentially dipping porous mullite in a precursor solution of carbon and slurry containing carbon black, and carrying out drying treatment and carbon burying sintering to obtain the carbon ceramic composite conductive microsphere; the preparation method comprises the following steps: preparing a ceramic raw material, performing vacuum-assisted centrifugal impregnation on the ceramic raw material and slurry consisting of a binder in pug consisting of the ceramic raw material and a surfactant, sequentially performing drying and glue discharging treatment, primary isostatic pressing forming and air pressure sintering, cooling to room temperature, and performing mechanical treatment and electrode spraying to obtain the ceramic resistor. Impregnation improves the dispersibility and uniformity of the carbon material in the porous mullite to form a continuous conductive path, the carbon black-containing slurry improves the conductivity of the ceramic resistor, carbon-buried sintering generates in-situ carbon with abundant types, the combination of carbon and a ceramic interface is promoted, and the oxidation resistance, mechanical properties and electrical properties of the ceramic resistor are improved.

The invention discloses an official document data processing method in a large model scene, and relates to the technical field of natural language processing, and the method comprises the steps: automatically collecting official document data from a multi-source channel, and carrying out format conversion and preprocessing optimization to obtain a data set; performing intelligent sampling on the data set by adopting a dynamic sampling algorithm, performing intelligent review on the sampled data, and making a cleaning strategy template library according to a review result; calling a cleaning strategy template library through a strategy configuration and execution engine to perform data cleaning, and executing data deduplication and similarity management; evaluating and reviewing the cleaned data; executing a set cleaning strategy and de-duplication on a data set in a large scale by utilizing a distributed computing framework; scientifically dividing the data set subjected to cleaning and duplicate removal, and converting the data set into an efficient storage format; the whole cleaning process is monitored in real time, and key steps and performance indexes in the data cleaning process are comprehensively recorded. The document data processing efficiency and response speed can be improved, and the labor cost is reduced.

The invention discloses energy-saving high-pressure cleaning equipment for square and rectangular pipes, and relates to the technical field of high-pressure cleaning, the energy-saving high-pressure cleaning equipment comprises a main body frame, a cleaning module is mounted above the main body frame, a rotational flow collaborative cleaning mechanism is arranged in the cleaning module, and the rotational flow collaborative cleaning mechanism is used for changing a water flow mode to ensure internal and external water flow collaborative high-pressure cleaning; the introduced air conveying bin only surrounds the outmost periphery of the nozzle, air flow flows along spiral water flow on the outmost periphery of the nozzle after being discharged in a vertical flowing mode, through the design, the peripheral water flow obtains additional momentum under the action of wind power, and then the momentum is transmitted to the internal water flow through collision among fluid molecules; according to the process, redistribution of energy is achieved, energy of internal water flow is supplemented, and water flow impact force borne by the peripheral square and rectangular pipes and the internal square and rectangular pipes is more balanced through the effect of wind power on the peripheral water flow and transmission of the energy to the internal water flow.

The invention relates to the technical field of chemical coatings, and particularly discloses an aerogel flame-retardant heat-insulation coating and a preparation method thereof. The aerogel flame-retardant heat-insulation heat-preservation coating is prepared from the following raw materials in parts by weight: 25 to 40 parts of deionized water, 0.1 to 1.0 part of cellulose, 4 to 10 parts of a building additive, 15 to 30 parts of a silicate flame retardant, 20 to 35 parts of an emulsion, 0.5 to 3.0 parts of aerogel and 12 to 25 parts of hollow glass beads, the preparation method comprises the following steps: adding the cellulose into the deionized water, stirring and mixing, then adding the building additive and the silicate flame retardant, stirring and mixing, then adding the emulsion, stirring and mixing, finally adding the aerogel and the hollow glass beads, and uniformly mixing to obtain the aerogel flame-retardant heat-insulation coating. After the aerogel flame-retardant heat-insulation heat-preservation coating is applied, a protective layer formed by the silicate flame retardant used by the aerogel flame-retardant heat-insulation heat-preservation coating at a high temperature can show relatively good closing performance, so that the aerogel flame-retardant heat-insulation heat-preservation coating has excellent heat-insulation heat-preservation performance and flame-retardant performance.

The invention discloses a tactile signal reconstruction method of a signal-to-noise ratio self-adaptive joint optimization information source channel, which relates to the technical field of tactile signal generation, and comprises the following steps: preprocessing an image corresponding to each object and a tactile vibration signal generated by sliding; constructing a cross-modal joint encoder for generating hierarchical fusion features, constructing a cross-modal joint decoder, and inputting training data obtained by preprocessing into the constructed cross-modal joint encoder and the cross-modal joint decoder for training; and inputting the to-be-detected paired tactile signal and image signal into the cross-modal joint encoder and the optimal cross-modal joint decoder, and reconstructing a target tactile signal. According to the tactile signal reconstruction method with the signal-to-noise ratio adaptive joint optimization information source channel provided by the invention, the coding training process is simplified, and modal feature fusion is better carried out; the robustness of the model to channel change is improved, so that the model shows higher tactile signal reconstruction stability under a larger range of signal-to-noise ratio change.

The invention belongs to the technical field of biology, and provides an electroporation buffer solution applied to exosome electroporation, the pH value is 6.8-9.8, the osmotic pressure is 80-320 mosm, water is used as a solvent, and the electroporation buffer solution comprises the following components: 15-25% w / v of iodixanol, 1.035-1.265 mM of KH2PO4, 22.5-27.5 mM of KCl, 0.18-0.22 mM of EDTA-2Na and 18-22 mM of HEPES. The electroporation buffer solution provided by the invention can improve the loading efficiency of the load and reduce damage to an exosome membrane structure and internal bioactive molecules in an electroporation process. The electroporation buffer solution can effectively reduce aggregation and fusion phenomena of exosomes after electroporation, and improves the stability and integrity of the exosomes. The electroporation buffer solution provided by the invention can improve the application degree of the exosome as a targeting drug delivery system.

The invention discloses an advanced data encryption protection technology for DNA information storage, and the specific technical scheme of the technology comprises the steps: coding to-be-encrypted data into small information blocks and transcoding the small information blocks into a DNA sequence through a coding and encryption scheme, after the DNA sequence is synthesized, introducing interference information through random errors or fractures, the interference intensity of random combination interference noise is effectively improved; the method for decrypting the DNA library carrying the encrypted information comprises the steps of sequencing, fragment assembly, information small block reconstruction, reordering and decoding, and finally decoding the original information based on an erasure coding scheme. The technology has a wide application prospect in the field of data storage and protection.

The invention discloses a preparation method and application of chlorine dioxide preservative paper.The preparation method comprises the steps that starch, nanocellulose, hydrogen peroxide, ferric sulfate, distilled water and sodium hydroxide are mixed to obtain gelatinized starch, and then the gelatinized starch is mixed with water-based acrylic resin, casein, alkyl glycoside and ammonium persulfate to obtain composite starch glue; mixing sodium chlorite and composite starch glue to obtain fresh-keeping coating liquid A, and then coating the fresh-keeping coating liquid A on fresh-keeping base paper to obtain fresh-keeping coating liquid A paper; citric acid and distilled water are mixed to obtain fresh-keeping coating liquid B, and then fresh-keeping base paper is soaked in the fresh-keeping coating liquid B to obtain fresh-keeping coating liquid B paper; the fresh-keeping coating liquid A paper and the fresh-keeping coating liquid B paper are attached to obtain the chlorine dioxide fresh-keeping paper. The chlorine dioxide fresh-keeping paste is pasted on the inner side of the blueberry packaging box cover to keep the blueberries fresh. The chlorine dioxide preservative paper prepared by the invention can solve the problems of burst release and short retention time of chlorine dioxide, can reduce the problems of easy softening, rot and deterioration of picked blueberries, prolongs the shelf life of the blueberries, and improves the commodity value of the blueberries.

The invention relates to a sperm flagellum three-dimensional motion reconstruction method based on deep learning, and the method comprises the steps: obtaining a two-dimensional image of a to-be-processed sperm, carrying out the image preprocessing of the two-dimensional image of the to-be-processed sperm, and obtaining a preprocessed image; inputting the preprocessed image into a trained sperm segmentation model to obtain a sperm flagellum binary image; skeleton processing is carried out on the sperm flagellum binary image, and a sperm flagellum center line, N equidistant points and position coordinates corresponding to each equidistant point are obtained; obtaining N sperm flagellum local images based on the N equidistant points, inputting each sperm flagellum local image into a trained depth prediction model, and obtaining depth information of each sperm flagellum local image; and reconstructing a three-dimensional model of the sperm flagellum based on the depth information of each local image of the sperm flagellum and the position coordinate corresponding to each equidistant point. A reliable solution is provided for research of sperm movement behaviors and development of an assisted reproduction technology.

The invention provides a pressure control device for the injection rate of a railroad bed grouting body, and belongs to the technical field of railroad engineering. Comprising a base, a supporting top is installed at one end of the base, a support is installed at the top of the base, a motor is installed at one end of the support, a control center is installed at one end of the support, an alarm indicator lamp is installed on the surface of the control center, and a signal receiving box is installed at the top of the support. A grouting machine is installed at one end of the signal receiving box, and a grouting pipe is installed at the output end of the grouting machine. Through arrangement of the shrinkage adjusting assembly and the plugging adjusting assembly, accurate position feeding and protection of devices in the pipeline, the conveying efficiency of the device body is improved, dust and impurities are prevented from blocking the interior of the pipeline, the slurry conveying speed and completeness are kept, when slurry conveying is finished, backflow of slurry materials is avoided, and the service life of the device body is prolonged. The internal space of the roadbed is filled with slurry, the slurry conveying construction efficiency is improved, and the construction period is shortened.

The invention belongs to the technical field of biological medicine, and particularly relates to a stem cell preparation based on immunoregulation and a preparation method and application thereof. The stem cell preparation based on immunoregulation is prepared from the following raw materials in parts by weight: 5 to 40 parts of freeze-dried powder, 40 to 120 parts of gastrodia elata polysaccharide and 2 to 6 parts of melatonin, the freeze-dried powder is obtained by mixing and freeze-drying a stem cell culture solution and curcumin lipidosome; the volume ratio of the stem cell culture solution to the curcumin liposome is 1: (10-32); the protein concentration in the stem cell culture solution is 1.2 mg / mL to 1.6 mg / mL. The stem cell preparation provided by the invention can utilize the immune regulation effect of the mesenchymal stem cells to realize the immune repair of adipose tissues.

The invention discloses low-VOC (volatile organic compound) formula waterborne polyurethane industrial paint and a preparation method thereof, and relates to the field of paint. The waterborne polyurethane industrial paint with the low VOC formula is prepared from a waterborne polyurethane emulsion, fluoride-based nanoparticles, aliphatic isocyanate, a self-repairing polymer, carbon nanotubes, silane quaternary ammonium salt, a photosensitive curing agent, indium tin oxide, polydimethylsiloxane, zinc pyrithione, polyether siloxane and ammonium tripolyphosphate. According to the waterborne polyurethane industrial paint, the waterborne polyurethane emulsion, the self-repairing polymer, the carbon nanotubes, the indium tin oxide, the aliphatic isocyanate, the polyether siloxane and the like are combined, and the waterborne polyurethane industrial paint is low in VOC, excellent in wear resistance, weather resistance, static resistance and self-repairing performance, environmentally friendly, safe, wide in application prospect and suitable for popularization and application. And lasting protection and attractive effects can be provided for the industrial environment, and meanwhile the convenience of operation and maintenance is improved.

The present invention belongs to the technical field of coating protection, and discloses a wear-resistant micro-nano structure super-hydrophobic coating with photothermal effect and a preparation method thereof. The method comprises the following steps: spin coating a defoamed PDMS prepolymer and a curing agent mixture onto a substrate for pre-curing treatment; adding micron carbon black particles or nano carbon black particles with photothermal effect into an organic solvent for ultrasonic dispersion to obtain a dispersion; spraying a micron carbon black dispersion on the surface of a substrate coated with PDMS, and then spraying a nano carbon black dispersion to obtain a coating with a micro-nano structure and a photothermal effect; then spraying a layer of PDMS prepolymer and a curing agent mixture diluted with an organic solvent on the surface, and curing at low temperature to enhance the wear resistance and mechanical stability of the coating. The coating prepared by the present invention has good super-hydrophobicity and wear resistance and durability; the photothermal effect significantly increases the temperature of the substrate under the action of sunlight, and has good application prospects in anti-icing.

The invention discloses a treatment method for relieving respiratory climacteric fruit and vegetable oxidation browning, and belongs to the technical field of fruit and vegetable storage and fresh-keeping processing. The method comprises the following steps: soaking treatment equipment and fruits and vegetables with NaClO or 75% ethanol solution, washing with deionized water, draining, and cutting into fresh-cut fruit and vegetable slices; soaking the pretreated fresh-cut fruit and vegetable slices in a 2-50 [mu] mol / L theanine solution, taking out the fresh-cut fruit and vegetable slices after the fresh-cut fruit and vegetable slices are completely soaked, and removing moisture on the surfaces of the fresh-cut fruit and vegetable slices; and storing the fresh-cut fruit and vegetable slices, wherein the sealed storage temperature is 0.5-8 DEG C. The treatment method can effectively slow down browning of the fresh-cut fruits and vegetables, is pollution-free to the environment, safe and sanitary, can improve the edible flavor of the fresh-cut fruits, and has the advantages of being green, environment-friendly, high in quality and low in price; the method not only can be used for relieving oxidation browning of fresh-cut apples, pears and yellow peaches, but also can be applied to browning and preservation of other breath climacteric fruits and vegetables, weight loss is reduced, and the method has good economic value.

The invention discloses precursor washing equipment and a carbon fiber precursor production line. The precursor washing equipment comprises a circulating water tank; the tow guide roller group is arranged above the circulating water tank and is used for pulling tows; the water inlet end of the circulating spraying water path is communicated with the circulating water tank, the water outlet end of the circulating spraying water path at least forms a spraying branch and a water outlet branch, a water outlet of the spraying branch faces the interior of the circulating water tank, is arranged above the tows and is used for spraying water to the tows, and a water outlet of the water outlet branch faces the running direction of the tows and is arranged below the tows in the circulating water tank. The water outlet is used for discharging water in the tow running direction. The showering branch applies water flow to the tows from top to bottom, it is ensured that the water flow can completely cover the surfaces of the tows in the washing process, and the washing efficiency and the cleaning effect are improved; the water outlets of the water outlet branches face the moving direction of the tows, so that water flow in the circulating water tank flows in the moving direction of the tows, the water flow is prevented from being disturbed back and forth, and mechanical impact and damage of the water flow to the tows are reduced.

The invention relates to the technical field of cynomorium songaricum identification, in particular to a method for rapidly identifying cynomorium songaricum of different processing modes and host plants based on an electronic tongue technology. The method comprises the following steps: weighing 1.0 g of a sample, adding 10mL of water, dissolving, filtering after 30min, repeating for three times, merging filtrate, obtaining a test solution, and detecting by using an electronic tongue; statistical analysis; the method has the beneficial effects or advantages of rapid and accurate quality identification, non-destructive detection, diversified processing modes and host plant identification, promotion of healthy development of the cynomorium songaricum industry, improvement of intelligent and automatic levels and the like. Due to the advantages, the method has wide application prospects and market potential in the field of cynomorium songaricum quality identification.

The invention discloses an environment-friendly hydrate compound inhibitor as well as a preparation method and application thereof, and relates to the technical field of hydrates. The compound inhibitor is prepared from potassium acetate serving as a main inhibitor, glycine serving as an auxiliary agent and water, can synergistically achieve the inhibition effect on hydrate generation in the two aspects of thermodynamics and dynamics, and has a good inhibition effect on hydrate formation and blocking. Meanwhile, the compound inhibitor has the characteristics of low use cost, no toxicity, no corrosion and environmental friendliness, has wide application prospects in the field of oil and gas transportation, and is easy to popularize and use.