48results about How to "Unique advantage" patented technology

The invention discloses a driving scene classification method based on a convolution neural network, and the method comprises the following steps: collecting a road environment video image; carrying out the classification of a traffic scene, and building a traffic scene recognition database; extracting sample images of different driving scenes from the traffic scene recognition database, carryingout the feature extraction and multiple convolution training of the sample images through a deep convolution neural network, carrying out the rasterization of pixels, connecting the pixels to form a vector, inputting the vector into a conventional neural network, obtaining convolution neural network output, and achieving the deep learning of different driving scenes; carrying out the parameter optimization of a network structure of the built convolution neural network, obtaining a trained convolution neural network classifier, carrying out the adjustment of a traffic scene recognition model, and selecting an optimal mode as the standard of the traffic scene recognition model; carrying out the real-time collection of the image of a to-be-detected traffic scene, and inputting the image intothe traffic scene recognition model for the recognition of a road environment scene.

The present invention relates to an ultrasonic and electrolytic combined microfine machining method and its equipment. Said invention can make ultrasonic machining method and electrolytic machining method be organically combined together to implement machining of microdevice. Said equipment includes the following several portions: electrolyzer, ultrasonic vibration drive device, working table, micropressure regulation and Z-direction automatic feeding measurement device and electrolytic current measurement analysis device. Besides, said invention also provides the working principle and concrete steps of said method.

A plastic micro-forming method by using strong laser shock and a device thereof belong to the field of micro-electro-mechanical system (MEMS) processing and laser micro-processing technology. The method is characterized in that the method comprises the following steps: polishing both sides of a target for experiment by electrolysis; pressing a transparent optical medium with a thickness of micrometer level on a press plate as a constrained layer; tightly pressing a metal flying plate on the optical medium; fastening the optical medium, the metal flying plate, the target and a template on a special target clamping machine through the press plate; turning on a nano-second pulsed laser; adjusting the optical path to focus the laser outputted from the nano-second pulse laser on the target surface; subjecting the nano-second pulsed laser to single emission to achieve single pulse laser shock on the target. The method can generate ultrahigh pressure and strain rate during production of a sample, and the application of pressure of the generated shock wave has higher planarity, completeness and repeatability, thus improving surface rigidity of micro-metal parts and improving micro-sensing sensitivity. Accordingly, a micro-driving device can provide higher drive force, torsional moment and energy.

The invention discloses an inorganic nanocementing agent, which is characterized by corrosion prevention, fire- proof, wearing resistant, acid-resistant and alkali reisistant. It takes silicasol and potassium metasilicate as raw material, and produced by adding a little amount of organic raw material or inorganic raw material, and the comprised raw material and their proportion by weight are as follows: nanocolloidal silica 10 -15, potassium metasilicate 20- 30, polyvinyl alcohol 1- 5, nano titanium dioxide 3- 6, titanium dioxide titanium dioxide 7- 12, calcining porcelain clay 2- 6, porcelain clay 2- 6, silicon zirconite powder 10- 14, barium sulfate powder and water 8- 15; or as that: nanocolloidal silica 10 -15, potassium metasilicate 20- 30, polyvinyl alcohol 1- 5, mica titanium 20- 30, nano zinc oxide 7- 12, high-alumina powder 2- 6, charring silicon 10- 18, barite powder 8- 16, and clean water 8- 15. The product will not deform at 1200 Deg. C, it can form permeating high- rigidity compact coating on metal surface, and there is no permission, cracking and separation when the gelatin is heated to 300- 500 Deg. C for several hours and for more than fives times of shock cooling and heating.

The invention relates to an imidazole onium salt anion-exchange membrane and a preparation method thereof, belonging to an anion-exchange membrane. The invention provides an imidazole onium salt anion-exchange membrane with better thermal stability and chemical stability and a preparation method thereof. The imidazole onium salt anion-exchange membrane is prepared by adopting a polymeric membrane, and has a chemical structure of one class of high polymers with side chains containing imidazole onium salt. The imidazole onium salt anion-exchange membrane has a membrane ionic conductivity of being more than 0.01S/cm, has better thermal stability and chemical stability and can be used at high temperature and in a strong acid, strong alkali and strong oxidizing agent. The preparation method comprises the steps of: soaking a polymeric membrane in acetone, and drying to constant weight after cleaning; radiating a film by high-energy rays; placing the radiated film in a container, injecting monomers in the container to ensure that the film is completely immersed into the monomers, vacuumizing, charging inert gases to the container until no air exists in the container, placing a water bathfor reacting after sealing, removing unreacted monomers, and drying; and soaking the grafted film with a quaternization reagent, and washing with deionized water to obtain the imidazole onium salt anion-exchange membrane.

The invention relates to a preparation method of carbon nano tubes, belonging to the field of preparation of carbon nano tubes. The preparation method provided by the invention comprises the following steps: firstly, mixing a catalyst with a complexing agent and a carbon source according to a proportion, and heating the mixture at 100-200 DEG C for 5-30 minutes; and then, dissolving the mixture in water, drying the mixture in an oven of 50-80 DEG C to obtain jelly; and finally, heating the jelly under a protective gas condition to 400-1000 DEG C, and calcining the jelly for 30-120 minutes to obtain a final product. The method provided by the invention is simple in steps, convenient to operate, low in demand on preparation equipment and capable of improving the safety in the experimental process. The carbon nano tubes prepared by the preparation method disclosed by the invention are uniform in diameters, good in conductivity and good in catalytic properties and magnetic action.

The invention discloses a logging curve prediction method based on modal decomposition reconstruction and a depth LSTM-RNN model. The logging curve prediction method comprises the steps: utilizing CEEMD to decompose logging curve data into limited intrinsic mode function IMF components and residual RES components which have local characteristics and are different in frequency; carrying out fluctuation degree detection on each component by a run-length detection method, and reconstructing CEEMD decomposition items with similar fluctuation frequencies into three new components with typical characteristics, namely a high-frequency item, a low-frequency item and a trend item; performing data normalization processing on the reconstructed new component and dividing training and test data; respectively establishing a depth LSTM-RNN model for each component and carrying out network training by utilizing the training data; and using the trained model to predict a missing or distorted logging curve, and finally reconstructing and reversely normalizing prediction results of the three components to obtain a logging curve prediction result. According to the logging curve prediction method, thenumber of prediction component modeling is reduced, and the prediction precision and speed are improved, and the simplicity and practicability are high, and the missing or distorted logging curve canbe predicted more accurately and effectively.

A method for controlling the phase of carbon nitride material by solvent heating constant pressure synthesis belongs to fields of chemical production and new material. The method includes preparing carbon source solution and nitrogen source solution; feeding into a reaction kettle; applying constant pressure of 40-2,000MPa before heating; heating up to 220-1,000 DEG C at a heating rate of 0.01-60 DEG C/min; cooling after the reaction is completed; and post-treating the product. When the boron carbon nitride is synthesized by the method, temperature and pressure of the reaction system can be independently controlled, so that the reaction can be carried out under the constant pressure, and the pressure of the reaction system can be varied according to the requirement so as to control the speed and the direction of the reaction for synthesizing boron carbon nitride. The method is capable of preparing high-particle size carbon nitride crystal.

The invention discloses a method of separating histidase enantiomer by a chitosan-modified gold nanochannel film. The method comprises the following steps: by taking a polycarbonate film and an aluminum oxide film as base films, adopting a chemical deposition method to prepare a gold nanochannel film; self-assembling chitosan onto the pore wall of the gold nanochannel to form a functional nanochannel film with chiral site selectivity on the surface; and separating D-histidine, L- histidine in a chiral manner by utilizing excellent separation ability of the nanochannel. During detection, silver sol is used as a surface enhanced Raman substrate to enhance SERS (surface enhanced raman scattering) effect of D-histidine, L-histidine, so that selectivity and sensitivity of the substance are improved to detect the D-histidine and the L-histidine at the same time. The invention provides a quicker and more convenient method for separating and detecting the chiral substance by constructing a coupling device of a nanochannel separating tank and an SERS detecting system, and shows unique advantages and wide application prospect of the method.

The solvent thermal constant-pressure synthesis method to adjust and control phase of boron carbonitride material comprises: preparing liquids for boron resource, carbon source and nitrogen source respectively; putting into the kettle; forcing 40~2000MPa constant pressure then heating the kettle to 220~1000Deg with 0.01~60Deg/min speed; after reaction, cooling to room temperature, and taking post-treatment to the product. Wherein, it can adjust and control the system temperature and pressure independently as well as the reaction speed and direction, and obtains large-size diamond, cubic boron nitride and carbonitride crystal block.

The invention relates to a light fireproof ecological aldehyde purifying cement board which comprises the following raw materials in parts by weight: 50-70 parts of kieselguhr powder, 15-30 parts of expanded vermiculite, 5-15 parts of shell powder, 5-15 parts of white cement, 0.01-5 parts of tourmaline powder and 10-20 parts of accessory materials. The board has the advantages of being capable ofpermanently continuously purifying indoor harmful substances such as formaldehyde; the long-lasting effect can reach up to 93% or above; the light fireproof ecological aldehyde purifying cement boardis capable of quickly neutralizing positive ions such as smoke, passive smoking, formaldehyde, cooking fume and dust (including PM2.5) in air and is capable of keeping indoor air fresh; the formaldehyde purifying rate can reach up to 94% or above and the formaldehyde purifying long-lasting effect can reach up to 93.8%.

The invention discloses a preparation method of a crop disease-resistant immune fertilizer, and belongs to the technical field of crop fertilizers. The preparation method comprises the following steps: separately culturing lactic acid bacteria, bacillus and penicillium bilaiae, then mixing to form mixed bacterial liquid a, filtering, adding xanthan gum, polyvinyl alcohol resin, tea seed powder andcaramel color, and stirring to prepare film forming bacterial liquid b for future use; taking organic matter and nitrogen, phosphorus, potassium, silicon, calcium, magnesium, iron, boron and inert viscous materials, mixing in proportion, preparing into a material c, spraying water on the material c, and extruding; polishing the extruded material c, placed in high-temperature drying equipment, andsieving material particles c1; transferring the material particles c1 to a rorate-drum stirring tank, adding the standby film forming bacteria liquid b, stirring and uniformly mixing to prepare coated particles d; and dying the coated particles d to prepare the disease-resistant immune fertilizer. The invention solves the problem that the existing immunological preparation has a single function.

The invention discloses a method for removing organic pollutants in water through photocatalytically activating calcium peroxide. The method is characterized by comprising the following steps: addingwater into the calcium peroxide to prepare suspension liquid; meanwhile, regulating the pH (Potential of Hydrogen) value of the suspension liquid by utilizing a pH regulator according to different oxygen release and oxidization requirements; putting wastewater to be treated into a photocatalytic reactor; starting the reactor; after pre-heating a lamp tube and stably outputting a light source, adding the calcium peroxide suspension liquid into the wastewater; activating the calcium peroxide under the illumination of the light source to generate an active substance, so that degradation of the organic pollutants in the wastewater is realized. According to the method, the organic pollutants in the water are removed by photocatalytically activating CaO2; compared with a single oxidization repairing technology or a photocatalytic technology, the acting effect is more rapid, and the applicable range on the pollutants is wider.

The invention provides a method for preparing a sulfonic acid functionalized hybrid material with special structure. In a buffer solution system, a nonionic copolymer as a template agent and (EtO)3SiCH2CH2CH2SSCH2CH2CH2Si(OEt)3 as a mixed silicon source are stirred and crystallized, so as to obtain an organic/inorganic hybrid material with a multistage pore structure. The material synthesized through the method has a special pore path structure, and the acid content of the sulfonic acid functionalized hybrid material which is prepared by use of a simple nitric acid oxidation method and has the multistage pore structure can be adjusted in the range between 0.78 and 0.89 mmol H<+>g<-1>. The oxidized material shows great reaction performance in the esterification of ethanol and the fatty acids with different chain length. The multistage pore structure of the material is beneficial to the diffusion of reactants, and especially shows the unique advantages of the multistage pore structure for the reaction in which macromolecules participate.

The invention provides a telescopic seam connecting method for a transverse paving single-layer metal wall surface plate. The method comprises the following steps that a first transverse main purline and a seam aligning sub purline are provided, and the seam aligning sub purline is vertically fixed on the end part of the main purline; a first transverse paving wall surface plate and a second transverse paving wall surface plate are provided, sealing plugs are pasted in positions near the end parts of the back sides of the first transverse paving wall surface plate and the second transverse paving wall surface plate by sealing adhesive tapes; the end part of the first transverse paving wall surface plate and the sealing plugs are fixed with the seam aligning sub purline, one side is tightly propped, and in addition, a certain lap joint length is left; the end part of the second transverse paving wall surface plate and the sealing plugs are placed at the other side of the seam aligning sub purline; a second transverse main purline and a vertical wall surface sub purline are provided, and the vertical wall surface sub purlien are respectively fixed with the end part of the second transverse main purline and the second transverse paving wall surface plate; and seam aligning stripped collected edges are provided, and the buckling and tight propping with the seam aligning sub purline is carried out. The method provided by the invention has the characteristics of displacement resistance, external force resistance, corrosion resistance, seepage resistance and the like. In addition, the performance in aspects of installation cost saving, on-site construction efficiency improvement and the like exceeds that of the traditional lap joint mode, and the unique advantages are shown.

The invention discloses a nano-ultrasonic microbubble, as well as a preparation method and application thereof. The nano-ultrasonic microbubble has a shell-kernel structure, wherein the inner kernel is liquid fluorocarbon nano-particles and curcumin, and the shell is a lipid film; and the surface of the lipid film is coupled with CD44 antibody. The nano-ultrasonic microbubble has good imaging, canbe used as an ultrasonic developing contrast agent, a CT contrast agent and an MRI contrast medium, is a multifunctional contrast medium and shows specific superiority in the aspect of targeting development. The nano-ultrasonic microbubble can achieve transformation from nano-grade to micron-grade after accepting ultrasonic excitation, and can release coated drugs to improve the curative effect of sonodynamic treatment. Due to the common effects of nano-grade particle size, sound-sensitive agent curcumin and CD44 antibody, the nano-ultrasonic microbubble achieves excellent target property andtreatment effect in tumor treatment and can be used for treating ovarian cancer, cervical cancer, lung cancer, colorectal cancer, breast cancer and esophagus cancer.

The invention discloses a method for preparing an amorphous film with a gradient structure based on high-temperature ion irradiation. The structure is characterized in that on the basis of adopting a high-quality amorphous film plated by magnetron sputtering, high-temperature ion irradiation treatment is assisted, so that the surface of a sample is crystallized, and the interior of the sample is kept in an amorphous structure; and therefore, the high-strength and high-plasticity amorphous film with the gradient structure is prepared. The gradient amorphous thin film structure prepared by the method can be easily realized by controlling the temperature and the implantation dosage of an ion irradiation experiment, so that the possibility is provided for preparing a controllable amorphous thin film material with high mechanical property.