73results about How to "Improve retouching effect" patented technology

The invention provides a modification method of a ceramic membrane and a modified ceramic membrane. The modification method of the ceramic membrane comprises the following steps: performing surface treatment on the ceramic membrane to obtain a fresh ceramic membrane; coating the surface of the ceramic membrane with a silane compound through an impregnation method or a sedimentation method; performing thermal treatment on the coated ceramic membrane under a protective atmosphere, naturally cooling to obtain the modified ceramic membrane after the modification. The modification method of the ceramic membrane provided by the invention has advantages that the modification process is simple, the raw material cost is low, and secondary pollution on the environment can be avoided in the modification process; compared with the common organic modification material, the modified ceramic membrane prepared through modification has the features of high long-term stability, strong acid-base resistance, and strong hydrophobic property; and the modified ceramic membrane can be extensively applied to sea water desalinization, oil-water separation, wastewater treatment and other fields.

The invention relates to production and preparation for protein or peptide labeled by an unnatural amino acid. For example, the invention relates to human interferon alpha2b subjected to site directed mutagenesis and human interferon alpha2b subjected to site directed modification, and the interferon can be different species or different types. The invention also relates to a method for site directed mutagenesis and site directed modification of interferon. The method comprises using a gene codon expansion technology to introduce an unnatural amino acid to the interferon gene in a site directed way, and having the aid of an unnatural amino acid or a modification agent to realize site directed linkage between growth hormone, and, for example, polyethylene glycol. The invention further relates to application of interferon subjected to site directed mutagenesis or modification, such as application thereof as a stable long-acting interferon, and the like.

The invention discloses a method for preparing silkworm chrysalis polypeptide by taking defatted silkworm chrysalis as raw material. It is characterized in that: it selects defatted silkworm chrysalis as raw material, takes composite enzyme of bromelain and neuter protease as proteolytic enzyme, carries out hydrolysis under special condition, and gets silkworm chrysalis polypeptide after drying. The invention is characterized by simple process, low production cost, long perservation time, ability of checking polypeptide content in silkworm chrysalis polypeptide through polypeptide content checking method, and the product is characterized by stable quality and ensured nutriment and effect. The product is widely used in food and health care food field, and can be matched with other animal, plant raw material with normal method to prepare capsule, soft capsule, granula, tablet and powder medicine.

A method of performing targeted editing on a mitochondrial genome by utilizing CRISPR/Cas9 is provided. The method includes steps of constituting a MitoCRISPR vector of the mitochondrial genome; inserting a mitochondrion specific sgRNA into the MitoCRISPR vector to constitute a mitochondrion gene knockout or modified vector; and transferring the mitochondrion gene knockout or modified vector into a human or animal cell, thus achieving the objective of editing the mitochondrial genome of the human or animal cell. Cas9 protein and the sgRNA elements are transformed by the method so that the Cas9 protein and sgRNA elements enter a mitochondrion and target on a corresponding gene of the genome to perform gene knockout and modification to hope to clear mutant DNA in the genome, and therefore a plurality of mitochondrial diseases are expected to be treated.

The invention belongs to the field of modified phenolic resins, and concretely relates to an ultra wear-resistant nanomaterial modified phenolic resin and a preparation method thereof. The preparation method of the nanomaterial modified phenolic resin comprises the following steps: 1, carrying out surface modification of a nanomaterial: dissolving a surfactant in an organic solvent, adding nanoparticles, and sequentially carrying out mechanical stirring, ball milling and ultrasonic reaction treatment to obtain a surface modified nanoparticle suspension, wherein above nanoparticles are one or more of nano-ZrO2, nano-ZnO, nano-SiO2, nano-SiC, nano-TiO2 and nano-Al2O3; and 2, adding phenolic resin into the nanoparticle suspension, fully stirring, carrying out ultrasonic reaction treatment, carrying out vacuum drying, and crushing to obtain the ultra wear-resistant nanomaterial modified phenolic resin. The nanomaterial modified phenolic resin has the advantages of strong heat stability, excellent wear resistance and extremely low wear rate, and can be widely used to prepare high performance friction materials.

The invention provides a hydrophobic modified fluorescent powder, and a preparation method and application thereof. The preparation method of the hydrophobic modified fluorescent powder includes the following steps of: step 1: placing a fluorescent powder in an acidic solution or an alkaline solution to perform surface treatment, so as to obtain a surface-treated fluorescent powder; step 2: mixingthe surface-treated fluorescent powder with chlorosilane and an organic solvent, and performing stirring until the organic solvent is completely volatilized, so as to obtain a mixture; and step 3: putting the mixture in an ammonia gas for pyrolysis treatment, so as to obtain the hydrophobic modified fluorescent powder. The hydrophobic modified fluorescent powder forms a coating layer with a suitable thickness on the surface of a silicon-based (oxy)nitride compound fluorescent powder, and can improve the stability and hydrophobicity of the silicon-based (oxy)nitride compound fluorescent powderin a high-temperature and high-humidity environment.

The invention relates to the technical field of a lithium battery, in particular to a lithium metal negative electrode structure combination and a preparation method thereof. The metal lithium negative electrode structure combination comprises a negative electrode structure and a surface modification layer, wherein the surface modification layer is formed on the negative electrode structure, the negative electrode structure comprises a negative current collector and a lithium metal negative electrode layer, the lithium metal negative electrode layer is formed on the negative current collector,the negative current collector, the lithium metal negative electrode layer and the surface modification layer are arranged in a lamination way, the lithium metal negative electrode layer comprises alithium metal active material, and the surface modification layer comprises a lithium compound having ion conduction characteristic. The surface modification layer has a modification effect on a surface of the lithium metal negative electrode layer, the surface defect of the lithium metal negative electrode layer is improved, the situations that charges are not uniformly distributed on the lithiummetal negative electrode layer during the charge-discharge process to form lithium dendrites and an electrolyte separator layer is punctured to cause short circuit of the battery are prevented, meanwhile, the lithium dendrites are limited from being formed on the lithium metal negative electrode layer, so that the charges are uniformly distributed on the lithium metal negative electrode layer, and the specific capacity density of the lithium metal negative electrode layer is improved.

A hair dryer with a function of hair grooming includes a hollow air tube having through holes spaced around the periphery thereof, a connector connected to a connecting end portion of the hollow air tube and defining therein a passage in communication with the inside space of the hollow air tube, two holder members respectively mounted in the passage of the connector and the external end portion of the hollow air tube, a cylindrical wire brush including a center rod suspended in the hollow air tube and connected between the two holder members and coarse and fine bristles fastened to the periphery of the center rod and partially inserted through the and protruded over the outer perimeter of the hollow air tube, a heat insulating cap, and a grip connected to the connector and having mounted therein a fan.

Embodiments of the invention provide an intelligent picture retouching method and a terminal. The method comprises the steps of importing a human face picture which needs to be beautified; recognizing facial feature of the human face in the human face picture, and searching a human face sample picture matched with the facial feature of the human face from a pre-established sample database; making comparison between the human face picture and the human face sample picture to work out a picture retouching scheme; and prompting the picture retouching scheme to a user to allow the user to retouch the picture according to the picture retouching scheme. By virtue of the embodiments, a reasonable picture editing scheme can be selected intelligently according to the facial feature of the human in the picture to prompt the scheme to the user, so that the user can edit the picture manually according to the prompting; and therefore, the subjective control capability of the user is enhanced, the operation difficulty in picture editing professionally is lowered, and the picture retouching effect is improved.

The invention relates to a method for preparing silver nanometer particles, wherein it is characterized in that: it uses silver nitrate or silver perchlorate as initial reactant; uses sodium oleate or linolic acid sodium as surface activator; mixing them at free ratio; uses toluene, dimethylbenzene, and sub dichlorobenzene or chloroform reaction medium; in organic phase, obtaining silver nanometer particles. The invention has simple control, without preparing forward element and organic solvent with high boiling point, with low cost. The inventive silver nanometer particles can be dispersed in non-polar medium and polar medium.

The invention belongs to the technical field of biomacromolecule separation and analysis and particularly relates to a dendritic macromolecule-copolymer cell capturing material as well as a preparation method and an application thereof. Firstly, a copolymer substrate of acrylamide and methyl methacrylate is synthesized, polyamide-amine type dendritic macromolecules are modified on the substrate, finally, the dendritic macromolecules are used for coupling of phenylboronic acid, and a functional material used for cell capturing can be obtained. An experiment proves that a three-dimensional network structure of the copolymer substrate and dendritic molecules can increase the phenylboronic acid modification amount, and the functional material can capture 87% plus or minus 5% of cells in 45 minutes; the copolymer substrate and the dendritic molecules are both super-hydrophilic compounds, and the captured cells keep high activity. Template-free, low-cost and non-toxic materials are adopted, and the dendritic macromolecule-copolymer cell capturing material is applied to cell capturing, is novel, convenient, practical, efficient and high in stability and has wide application prospect.

The invention discloses a cutch extracts preparation method for tobacco and application thereof. The method includes taking one part of raw materials of cutch, adding ethanol with weight of 10-20 times and volume fraction of 30%-95% or lactic acid water solution with volume fraction of 0.1%-1%, soaking for 1-2 hours, heating and returning flow and extracting 2-4 times in a normal pressure, extracting for 1-4 hours each time, filtering after cooling, and keeping filter solution of 2-4 times respectively. Cutch extracts for the tobacco are required after the raw materials of the cutch is reduced in pressure and concentrated to 2-4 times of weight of the cutch raw materials under 55-65 DEG C. Cutch extract solution is evenly sprayed in blank pipe tobacco according to additive amount of pipe tobacco dry weight of 0.01-0.1%, the pipe tobacco is dried to moisture content of 12-16% on the condition of 55-65 DEG C, and a cigarette can be manufactured. Natural aroma which is contained in extracts obtained is coordinated with tobacco and has good decoration function on smoke state after added into tobacco leaves, so that the aroma is rich, and the smoke is soft, fine and smooth.

The invention relates to the technical field of anode materials for lithium ion batteries, and specifically relates to an anode material for lithium ion batteries, a preparation method of the anode material and a battery containing the anode material. The preparation method is characterized by comprising the following steps in sequence: preparing 5wt% to 15wt% of a silicon sizing agent; preparing 10wt% to 50wt% of a resinol solution; after uniformly mixing the silicon-containing sizing agent, the resinol solution, spherical graphite and a conductive agent, vaporizing a solvent through pressure reduction to obtain a precursor; after mixing the precursor and high-temperature asphalt in a weight ratio of (10: 1) to (2: 1) at a high speed, carrying out mechanical fusion for 1 to 30 min to obtain a fused material; putting the fused material in a cladding kettle, stirring while heating for pyrolysis; then sintering for carbonization in an inert atmosphere, and then sieving to obtain the anode material for the lithium ion batteries. Compared with the prior art, the prepared anode material for the lithium ion batteries has the advantages of small specific surface area, high first efficiency, good circulation, high rate capability and the like, nanometer silicon is uniformly dispersed on the surface of a basal body, and a stable SEI film can be formed on the surface of the material.

The invention relates to a furniture surface paint layer processing process, and belongs to the technical field of furniture painting processing. The furniture surface paint layer processing process comprises the steps of nail eye filling, putty application, sealing paint coating, primer coating and finish paint coating on the surface of the furniture in order; and before coating, both drying andsanding are performed on the surface of the furniture after coating of putty, sealing paint, and primer to keep the surface of the furniture flat and clean. By means of the furniture surface paint layer processing process, the furniture surface paint layer has the effects of being flat, uniform and beautiful.

The invention provides an image processing method and device, electronic equipment and a computer storage medium, and the method comprises the steps: obtaining a to-be-processed face image, and determining target feature points of a to-be-modified object in the to-be-processed face image; Obtaining modification parameters of the to-be-modified object; And determining a to-be-modified region of each target feature point based on the modification parameters, and performing offset processing on pixel points contained in each to-be-modified region in the to-be-processed face image to obtain a modified image of the to-be-processed face image. According to the invention, the to-be-modified object in the to-be-processed face image is modified; automatic modification of the to-be-modified object in the to-be-processed face image can be realized without the help of third-party image processing software; The method only needs to be applied to a certain specific application, so that the application has the image processing function, the user experience is greatly improved, and the technical problem that an existing image processing method cannot intelligently process the to-be-processed faceimage is solved.

The invention discloses a high-voltage lithium ion battery non-aqueous electrolyte. The high-voltage lithium ion battery non-aqueous electrolyte comprises an electrolyte lithium salt, a non-aqueous organic solvent and additives, and the additives comprise the following components in percentage by mass in the high-voltage lithium ion battery non-aqueous electrolyte: 0.5-1.0% of a sulfur compound, 0.5-3.0% of a positive electrode protection additive and 0.1-8.0% of a negative electrode film-forming additive. The invention also discloses a high-voltage lithium ion battery. The high-voltage lithium ion battery non-aqueous electrolyte can effectively inhibit dissolution of metal ions, reduce decomposition and gas production of the electrolyte, improve the cycle performance of the battery underhigh voltage, reduce the impedance of the battery and improve the low-temperature performance of the lithium ion battery.

The invention discloses a method for decorating rough surface of fur skin, selecting from one of the following two ways: 1. bonding agents are coated on the setting position on the rough surface of fur skin, then a bronzing membrane is attached on the bonding agent, thus leading the color on the bronzing membrane to be bonded on the fur skin, then the bronzing membrane is taken down; 2. the mixture containing one or a plurality of the bonding agents, pearl essence, pearly-luster sheets, pigments and dye is coated on the setting position on the rough surface of fur skin, thus leading one or a plurality of kinds of the bonding agents, the pearl essence, the pearly-luster sheets, the pigments and the dye to be bonded on the fur skin. The invention further relates to a fur skin product produced by the method. The technique is simple and the decorating effect is good, thus being easy to be industrialized. According to needs, the decoration of patterns defined freely can be carried out on the fur skin. In addition, the technique condition is optimized, thus leading the color decorated on the fur skin to be firmly bonded and not being easy to drop off.

The invention provides a novel [ONN] tridentate fourth subgroup metal complex and a preparation method and application thereof. The novel [ONN] tridentate fourth subgroup metal complex has a structureas shown in formula I which is described in the specification. According to the complex, multiple groups are grafted to carbon adjacent to intermediate nitrogen, the steric effect and the electricaleffect of a metal center are changed, a better modification effect can be achieved on a metal active center, and the polymerization performance of a catalyst on ethylene is improved. Due to the existence of nitrogen covalent bonds in the complex, the stability is greatly enhanced. The catalyst is very high in activity of catalyzing ethylene homopolymerization, and ultrahigh molecular weight polyethylene can be obtained. The complex is used as a catalyst to catalyze copolymerization of ethylene, norbornene, 1-hexene and 1-octene, the activity is high, and the co-monomer insertion rate in the polymer is also very high. The maximum molecular weight of polyethylene obtained by catalyzing ethylene homopolymerization by the complex is 163.4 * 10 < 4 > g/mol; the maximum molecular weight of a polymer obtained by catalyzing copolymerization of ethylene and norbornene is 75.7 * 10 < 4 > g/mol.

The invention discloses a hydrophobic material surface modification method and application of the material after modification. The method comprises the following step: performing surface contact on apolylysine coupled poloxamer solution with a hydrophobic material. According to the method disclosed by the invention, the cell adhesiveness of the surface of the hydrophobic material can be remarkably improved through one-step method surface modification, multiple steps of modification can be avoided, adhesiveness, growth culture and detection analysis capability of living cells on the surface ofthe hydrophobic material can be greatly improved, and the method can be conveniently mastered and used by researchers of multiple subjects and fields; and in addition, the modification method is simple, rapid and efficient to operate, and is applicable to various types of in-vitro living cell micro engineering operation and analysis application.

The invention discloses a compound modification method for laccase and applications of the modified laccase. The compound modification method for laccase comprises the following steps: carrying out carboxy modification, namely, sequentially adding a laccase inhibitor, a carboxy activating agent and a modifying agent into laccase water solution for reaction, and after complete reaction, carrying out dialysis on the reaction system, thus obtaining carboxy modified laccase; and carrying out amino modification, namely, sequentially adding an amino activating agent and a modifying agent into the carboxy modified laccase solution in S1 for reaction, and carrying out dialysis after the complete reaction, thus obtaining the compound modified laccase. According to the compound modification for laccase provided by the invention, compound modification is carried out on carboxyl and amino on side chains of amino acid residues or terminal amino acid of laccase, meanwhile, the active groups, namely,carboxy and amino on the chains of laccase are protected, under the premise that the active central sites of laccase are protected from being influenced, the activity and stability of laccase are changed, the obtained compound modified laccase can obviously improve the pulping and papermaking properties of modified fibers, and therefore, a novel path is provided for the recycling of fibers.