52results about How to "Contribute to the generation" patented technology

The invention discloses a novel preparation method of mesoporous active carbon. The novel preparation method comprises the step that carbohydrate, wood or bamboo as raw materials undergo a reaction in the presence of an acidic ionic liquid as an ion heat carbonization solvent and a catalyst; and the reaction product is activated by CO2 to form the mesoporous active carbon. The mesoporous active carbon has a specific surface area of 289-469m<2>/g and an aperture size of 3.55-3.62nm. The mesoporous active carbon has a rod-shaped, spherical or membrane-shaped structure because of different surfactants. The ionic liquid has a strong biomass dissolution capability, does not volatilize, can be recovered easily and has good heat stability. The ion heat carbonization reaction is adopted so that a reaction temperature is low; pressurization is avoided; and operation is simple. The mesoporous active carbon can be used in fields of environmental protection, energy storage, catalysis, foods and medicine.

A preparation method of high-density foam glass, firstly put cullet powder with a density greater than 3.0g/cm3 and SiC or TiN into a ball mill jar and ball mill to below 200 mesh and add it into a heat-resistant steel mold, and finally move the mold into Firing in a foaming furnace; Foamed glass is obtained after foaming, rapid cooling and annealing. The present invention uses cullets with various densities greater than 3.0g/cm3 as raw materials; SiC or TiN as foaming agent; the foaming agent SiC or TiN helps foam glass to produce crystals in the preparation process, which is beneficial to improve the foam glass brick. mechanical properties. Therefore, the high-density cellular glass can absorb the shock wave energy during the explosion. The foam glass can be combined with cement, steel or other high-strength building materials, used in the interior and exterior façades of the key surfaces of buildings in high-risk areas of terrorist attacks, and has the advantage of a rigid structure. When facing shock waves, the said Bricks can absorb a major part of the explosion energy.

The invention provides a special makeup remover for minimizing pores and moistening skin. The makeup remover is prepared from raw materials of components in percentage by weight as follows: 5%-20% of a surfactant, 5%-20% of a moisturizer, 2%-5% of salicylic acid, 0.5%-2% of a pot marigold extract, 0.5%- 1% of a seaweed extract, 1%-3% of a tea extract, 1%-3% of pentapeptide, 0.5%-2% of vitamin A, 0.01%-0.02% of methylisothiazolinone, 0.2%-1% of a coenzyme Q10, 0.1%-0.5% of sodium citrate and the balance of deionized water. The makeup remover is prepared from four components including salicylic acid, the pot marigold extract, the seaweed extract and the tea extract which have effects of shrinking and minimizing the pores, the four components are matched for use and have the more excellent effect than one single component, the pore minimizing effect is very significant, and besides, the makeup remover removes makeup thoroughly, is free of residues, irritation and oily feeling and can effectively prevent the skin from ageing, moisten and tender the skin and smooth the pores. Meanwhile, the invention further provides a preparation method of the makeup remover.

The invention discloses photosensitive antibacterial hydrogel and a preparation method thereof.The method comprises the following steps that 1, imvite and a photosensitizer are dissolved into deionized water respectively to form an imvite water solution and a photosensitizer water solution; 2, the imvite water solution and the photosensitizer water solution are mixed to obtain a photosensitive water solution modified by imvite; 3, polyvinyl alcohol-aminostyrylpyridinium salt is dissolved into deionized water to form a water solution which is mixed with the photosensitive water solution modified by imvite obtained in the step 2; 4, finally, the mixed solution obtained in the step 3 is placed under an ultraviolet lamp to be irradiated, so that the photosensitive antibacterial hydrogel is obtained.The photosensitive antibacterial hydrogel can generate phototoxic singlet oxygen under visual light irradiation, the singlet oxygen can efficiently kill viruses, bacteria and fungi, and no drug resistance is generated.

The invention relates to the technical field of coatings, in particular to a refractory coating which is prepared from, by weight, 10-15 parts of epoxy resin, 1-2 parts of yttrium oxide powder, 9-15 parts of aluminum oxide powder, 8-12 parts of quartz powder, 20-30 parts of aluminum silicate, 8-15 parts of silicon dioxide powder, 1-3 parts of barium sulfate, 1-3 parts of coupling agents, 20-30 parts of methylbenzene, 10-20 parts of rare-earth phosphates, 15-25 parts of aluminum triphosphate, 4-5 parts of melamine phosphate, 5-10 parts of sodium hydroxide, 1-8 parts of hydrochloric acid, 1-3 parts of associative polyurethane thickening agents, 1-3 parts of ferroferric oxide, 2-6 parts of zirconium oxide, 1-2 parts of boron nitride powder, 10-15 parts of silicon carbide powder, 1-4 parts of leveling agents, 4-5 parts of defoaming agents and 15-30 parts of water. The refractory coating has the advantages of good heat retaining property, fire resistance and abrasion resistance, strong high-temperature resistance and corrosion resistance, and good viscosity and leveling property.

Disclosed are nano-manganese dioxide for removing underground water heavy metal pollution and a preparation method of the nano-manganese dioxide for removing underground water heavy metal pollution. The preparation method includes the steps of 1), inoculating one or more of Leptothrix discophora SS-1, Pseudomonas putida MnB1 and Bacillus sp SG-1 to a microbial growth medium and culturing at 25-30 DEG C; 2), centrifuging a mixture obtained in the step 1 to obtain a bacterial body and cleaning and precipitating the bacterial body; 3), inoculating the bacterial body obtained in the step 2 to a manganite culture medium and culturing at 25-30 DEG C; 4), adding MnCl2 and Na3VO4 into a product obtained in the step 3 and culturing at 28-30 DEG C so as to obtain black precipitate, namely the nano-manganese dioxide.

The invention discloses a lightweight porous MXene-based composite film electromagnetic shielding material and a preparation method thereof, and belongs to the technical field of film electromagnetic shielding materials and preparation thereof. Self-assembly of MXene and graphene oxide is realized by taking electrostatic interaction force as driving force on MXene modified by a cationic surface modifier and graphene oxide, and then the lightweight porous MXene-based composite electromagnetic shielding material with ultrahigh specific performance is obtained through film casting and high-temperature annealing. The prepared composite film material has excellent electromagnetic shielding effectiveness and specific effectiveness, and when the thickness is only 15 [mu]m, the porous MXene-based composite film obtained by adding 5 wt% of graphene oxide can keep the electromagnetic shielding effectiveness of 49 dB or above in the whole X wave band. The preparation process is simple and easy to operate, and the material is expected to be applied to the fields of aerospace, military equipment, micro electronic equipment, civil electric appliances and the like.

The invention discloses a terpene fragrance gene Hctps1 from hedychium coronarium and use thereof. The nucleotide sequence of the terpene fragrance gene from hedychium coronarium is shown by SEQ ID No.1; and the amino acid sequence of the protein coded by the gene is shown by SEQ ID No.2. The terpene fragrance gene Hctps1 from hedychium coronarium can be expressed in flower tissues of fragrant hedychium coronarium and expressed under induction by damage in laminae of hedychium coronarium, but cannot be expressed in non-fragrant hedychium coronarium varieties; and the expression of the gene isassociated with the growth process of flowers. The terpene fragrance gene Hctps1 from hedychium coronarium disclosed by the invention can be connected to any plant conversion vector and then transferred into cells of hedychium coronarium and other plants to produce transgenic fragrant or resistance varieties in which the gene is expressed, and thus, the gene can be used in production. In addition, specific molecular markers can be produced according to the sequence information of the gene and used to identify the fragrance gene types of hedychium coronarium and other plants or used in molecular marker-assisted selective breeding for improving selection rate in breeding.

The invention discloses safe pore refining type cleansing oil. The safe pore refining type cleansing oil is prepared from, by weight, 20-70% of natural plant oil, 5-35% of surface active agent of plant origin, 5-15% of tartaric acid, 3-6% of plant essential oil, 0.5-2% of calendula extract, 0.5-1% of seaweed extract, 1-3% of tea extract, 0.1-0.6% of rosemary leaf extract and 0.1-0.6% of anti-allergy agent with plant components, and the total percentage composition is 100%. Natural plant oil which is safe, mild and not irritant is used as the main ingredient of the formula, so that damage caused by the product to the body is reduced; besides, the cleansing oil contains tartaric acid, calendula extract, seaweed extract and tea extract all of which have a pore refining function, so that a better effect can be realized through mixing ratio optimization and cooperation of the four components compared with single component, and the pore refining effect is quite remarkable.

The invention provides a preparation method and culture medium of a saussurea medusa high yielding flavone cell line. The method comprises the following steps: inducing callus tissue through a saussurea medusa seed; performing solid successive transfer culture on obtained callus tissue; directly selecting a cell line with high total flavone content in the callus tissue subjected to successive transfer culture through a visual method; performing liquid culture, performing solid culture from liquid culture, and continuously performing repeated screening and subculture, so as to obtain a high yielding cell line which is rapid in development and high in total flavone content. The cell line and the culture medium obtained through the method have the advantages that the cell growth rate can reach 45g to 50g dry weight/liter/month when the lighting suspension culture temperature is about 25 DEG C, and the content of flavonoid can reach 12 percent of the dry weight of culture.

The invention provides a device and method for removing inclusions through refined bubbles. The device comprises a steel containing bucket, electromagnetic brake magnetic field generators and an electromagnetic stirrer. The electromagnetic brake magnetic field generators are arranged on the side face of the steel containing bucket, and the electromagnetic stirrer is arranged on the periphery of a bottom air brick of the steel containing bucket. The steel containing bucket containing molten steel is placed between the two electromagnetic brake magnetic field generators, and the electromagnetic stirrer is mounted on the periphery of the bottom air brick of the steel containing bucket. After an air blowing valve is opened, the electromagnetic stirrer and the electromagnetic brake magnetic field generators are started, and through electromagnetic stirring, the flowing speed of the molten steel near the air brick is increased, and small bubbles can be generated; the electromagnetic brake magnetic field generators are used for restraining the flowing speed of the molten steel on the middle and upper portions of the steel containing bucket, so that the staying time of the bubbles is prolonged. When the content of small-size inclusions in the molten steel meets the requirement, air blowing is stopped, and the electromagnetic brake magnetic field generators and the electromagnetic stirrer are turned off. By means of the device and method, the efficiency of capturing the inclusions smaller than 5 micrometers of the bubbles can be improved, temperature decrease and the total air blowing amount are reduced, and energy and resources are saved.

The invention discloses a method for synthesizing a small crystal grain P-ZSM-5 molecular sieve by using a low cost raw material. The method comprises the following steps: mixing aluminum sulfate with concentrated sulfuric acid, NaCl, isopropanol, water glass, n-butylamine, ZSM-5 molecular sieve seeds and a phosphorus-containing aqueous solution, uniformly stirring for ageing, crystallizing, filtering, drying, and roasting to obtain the small crystal grain P-ZSM-5 molecular sieve. The small crystal grain P-ZSM-5 molecular sieve prepared in the invention can be used in heavy oil catalytic cracking catalysts to improve the yield of propylene or improve the octane number of gasoline.

The invention belongs to the technical field of gene engineering, and in particular discloses a lily ester floral gene LoAAT1 and application thereof. A nucleotide sequence of the LoAAT1 gene is shown in SEQ ID NO: 1-2, and an amino acid sequence of protein coded by the gene is shown in SEQ ID NO: 3. The LoAAT1 gene is expressed in lily tissue with fragrance and is not expressed in lily varieties having no fragrance, and the expression s related to a development process of flower. The LoAAT1 gene can be linked to any one plant transformation vector and introduced into cells of lily or other plants, to obtain transgenic fragrance expressing the gene, thus being used for production; in addition, a molecular marker can be generated depending on the gene sequence information, and the molecular marker is used for identifying fragrance genotype of lily or other plants and for marker-assisted selective breeding, thus enhancing selecting efficiency of breeding.

The invention discloses a recombinant vector, a DNA molecule, application and a method for carrying out homologous recombination on a target gene by taking an RNA transcript as a template in a plant. The recombinant vector comprises an expression cassette A, an expression cassette B and an expression cassette C; the expression cassette A comprises a promoter A, SpCas9-T2A-GFP and a terminator; the expression cassette B comprises a promoter B and an encoding gene of gRNA, and a target fragment targeted by the gRNA is a DNA fragment to be replaced in a plant genome; the expression cassette C comprises a promoter C, an encoding gene of nuclease A, a template section and an encoding gene of nuclease B, and the template section comprises an upstream homologous arm of the target fragment, a donor fragment and a downstream homologous arm of the target fragment; and the donor fragment has a difference from the target fragment as follows: the donor fragment contains different nucleotides expected to be introduced into the target fragment. According to the invention, the recombinant vector utilizes a CRISPR/SpCas9 system, RNA serves as a homologous recombination repair template, replacement of a target gene is achieved in rice, and the application range of TT-HDR to the CRISPR/SpCas9 system is expanded.

The invention provides a resistive random access memory and a manufacturing method thereof. The resistive random access memory comprises a semiconductor substrate, a first electrode, a first intercalation layer, a resistive random access layer, a second intercalation layer and a second electrode, the first electrode covers a part of the semiconductor substrate, the first intercalation layer coversthe first electrode, a resistance of the first intercalation layer is smaller than that of the resistive random access layer, the resistive random access layer covers the first intercalation layer, the second intercalation layer covers the resistive random access layer, oxygen atoms exist in the second intercalation layer and the resistive random access layer, and the second electrode covers thesecond intercalation layer. Due to the fact that oxygen atoms exist in the second intercalation layer and the resistive random access layer, after the resistive random access memory applies a positivevoltage, the oxygen atoms in the resistive random access layer and the second intercalation layer can move towards the second electrode, the concentration of oxygen vacancies can be increased, generation of oxygen vacancy conductive filaments is facilitated, and the consistency of the resistive random access memory is further improved.

The invention discloses ceramic substrate casting processing equipment which comprises a raw material treatment device, a forming device and a post-treatment device. The raw material treatment device comprises a main mixer and an auxiliary mixer, a first mixing mechanism is arranged in the main mixer, a second mixing mechanism is arranged in the auxiliary mixer, and a connecting pipe is arranged between the main mixer and the auxiliary mixer. The forming device comprises a casting rack, a conveying belt arranged on the casting rack, a feeding box arranged on the conveying belt and a scraper arranged on the casting rack, the feeding box is connected with the auxiliary mixer, and the post-treatment device is arranged on one side of the conveying belt. The first mixing mechanism comprises a crushing and screening part and an initial mixing part, the initial mixing part wraps the outer side of the crushing and screening part, the crushing and screening part comprises symmetrically-arranged driving discs and grinding columns movably arranged on the driving discs, center wheels are arranged in the middles of the driving discs, multiple gears engaged with the center wheels and outer gear rings engaged with the gears are arranged on the edges, and through holes are formed in the center wheels.

The invention relates to a preparation process of an alpha-amyrin fine particle, which uses the traditional supercritical fluid anti-solvent equipment. The preparation process of the alpha-amyrin fine particle comprises the following steps of: (1) preparing alpha-amyrin liquid; (2) feeding carbon dioxide; (3) crystallizing and separating out alpha-amyrin; and (4) detecting. The preparation process is suitable for alpha-amyrin raw materials, can prepare the ultrafine particles which are beneficial to the absorption of a human body and can enhance the solubility and the curative effect of the alpha-amyrin and reduce the use cost and the toxic side effect; and in addition, the alpha-amyrin ultrafine particle prepared by the process has unique clinical advantages.

The invention provides a special high-performance coating for junction boxes and a preparation method of the coating and relates to the technical field of coatings. The special high-performance coating for the junction boxes is prepared from raw materials as follows: a waterborne polyurethane emulsion, a polyacrylate emulsion, a styrene-acrylic emulsion, reinforcing fiber, hollow beads, texanol, pigment, hexenyl distearamide, higher aliphatic alcohol, inorganic filler, triethanolamine, industrial salt, ethylene glycol, hexahydroxy methyl-etherified melamine, emulsified silicone oil, a hinderedphenol antioxidant, a nonionic fluorinated surfactant, an organosilicon waterproofing agent, an anti-corrosion bactericide and a brominated flame retardant. Under the cooperation and synergistic action of all raw materials, the waterproof property, anti-corrosion bactericidal activity and anti-crack performance of the coating are greatly improved. The coating has the advantages of good anti-corrosion and waterproof effects, has very excellent weather fastness and good leveling property, cannot peel off easily, has long life cycle, can be sprayed and brushed and has very excellent covering property for tiny cracks.

The invention discloses an even light source generator comprising an integrating sphere (4) and a non-even light source mounting sphere body (5). The non-even light source mounting sphere body (5) isfixed to the side edge of the inner wall of the integrating sphere (4), an even light source light outlet (3) is formed in the bottom of the integrating sphere (4), and a non-even light source light outlet (2) is formed in the is formed in the top of the non-even light source mounting sphere body (5). Non-even light sources (1) are evenly fixed to the inner wall of the non-even light source mounting sphere body (5). According to the even light source generator, the structure is simple, and the cost is low; and the technical problem that an even light source generator of the prior art is complex in structure, and thus the cost is high, so that the even light source generator cannot be generally utilized to imaging experiments in a laboratory, and even light source application and promotionare not facilitated are solved.

The invention relates to a light-emitting component (100) in various exemplary embodiments, comprising a first translucent electrode (104), an organic electroluminescent layer structure (106, 108) on or over the first electrode (104), a second translucent electrode (112) on or over the organic electroluminescent layer structure (106, 108), an optically translucent layer structure (116) on or over the second electrode (112), wherein the optically translucent layer structure (116) comprises a photoluminescence material (120), and a mirror layer structure (118) on or over the optically translucent layer structure (116).