44results about How to "Troubleshoot compositing" patented technology

The invention relates to the technical field of visual tracking algorithms, in particular to a location correction long-range tracking algorithm based on a continuous correlation filter which has better tracking performance and higher tracking stability. The algorithm includes the following steps: a target is located in a continuous domain; target features are selected by training three templates Rt, Rs and Rd, wherein the target location template Rt encodes the appearance change of the target in real time and needs to be robust to some tracking interference such as fast movement and illumination change, a VGG-19 convolutional neural network is selected and the output features of conv3-4, conv4-4 and conv5-4 layers are used to train the target location template Rt, and in consideration of the computational efficiency, HOG features are used for the Rs and Rd templates; and the target is relocated.

The invention discloses a synthetic method for semaglutide and belongs to the field of polypeptide synthesis. In the method, amino acids at 1-30 positions of a main sequence of the semaglutide is obtained by adopting solid phase synthesis, Val at 10 position and Ser at 11 position adopt Fmoc-Val10-Ser11 (Psi(Me, Me) pro)-OH; and an Lys side chain at 20 position adopts Fmoc-Lys(X)-OH. The method comprises the following steps of performing cracking precipitation to obtain a semaglutide crude peptide; and performing purification to obtain the semaglutide. In the method, by introducing the Fmoc-Val10-Ser11 (Psi(Me, Me) pro)-OH to solve the problem of difficult sequence synthesis of the semaglutide, difficult sequence synthesis becomes simple and easy; and meanwhile, the yield is greatly increased, the purity of the crude peptide is greatly improved, the production cost is greatly lowered, and industrial amplification production is facilitated.

The invention belongs to the field of chemical and material and relates to a bovine serum albumin surface molecular imprinted polymer and a preparation method thereof. The method comprises the following steps: by taking a bovine serum albumin as a template molecule, taking r-aminopropyl triethoxysilane modified carbon nano-tube as a matrix and taking siloxane functional ion liquid as a functional monomer, under the effect of a cross-linking agent tetraethoxysilane, grafting a layer of molecular imprinted polymer with selective recognition ability for the bovine serum albumin on the surface of the carbon nano-tube. The molecular imprinted polymer prepared by the invention is good in thermal stability, is big in specific surface area, has an effective recognition site specifically combined with the bovine serum albumin, is large in bovine serum albumin absorption volume, is good in selectivity and specificity and is excellent in reusability.

The invention discloses a synthesizing method of sermaglutide. The synthesizing method comprises the following steps of step 1, preparing Fmoc-Gly-Wang resin; step 2, using the Fmoc-Gly-Wang resin, protective amino acids, and octadecandioic acid (OtBu)-gamma-Glu-OtBu-PEG-PEG-OH as the raw materials to prepare full-protective peptide resin which contains Depsipeptide Units; step 3, performing TFA (trifluoroacetic acid) cracking on the peptide resin, so as to obtain crude peptide; step 4, dissolving the crude peptide obtained in step 3, adjusting the pH (potential of hydrogen) value, and converting ester bonds into amide bonds to react, so as to obtain a crude product of the sermaglutide. The synthesizing method has the advantages that by introducing the Depsipeptide Units, the problem of difficulty in sequential synthesizing of the sermaglutide is solved, and the target product is obtained by the reaction of converting the ester bonds into the amide bonds; the purity and yield of the crude peptide are improved, and the synthesizing method is suitable for downstream purifying, and is suitable for industrialized production.

The invention discloses a method for preparing citric acid by fermentation, which comprises the following steps: under the conditions of generating citric acid, inoculating citric acid fermentation strain into fermentation media, and carrying out fermentation, thereby obtaining the fermentation liquid. The invention is characterized in that the method also comprises the step of adding saccharifying enzyme into the fermentation media 0-8 hours after inoculating the citric acid fermentation strain. The method disclosed by the invention enhances the saccharifying capacity in the fermentation process, solves the contradiction between the pH value requirements from citric acid synthesis and saccharification in the fermentation process, and avoids the adverse effect of high DE (dextrose equivalent) value on Aspergillus niger, so that the sugar solution in the fermentation media is saccharified more thoroughly, thereby lowering the residual sugar amount in the fermentation liquid, enhancing the end citric acid content and single-tank acid supply amount, increasing the conversion rate of sugar acid and shortening the fermentation period.

The invention discloses a multiband image fusion recognition method. According to the method, a medium-wave infrared image and a long-wave infrared image are fused and used to supplement a training sample; and data processing is performed on the basis of the supplemented training sample. In this way, classified division can be performed on a visible light image with abundant details and color information and a high recognition by use of respective advantages of the medium-wave infrared image and the long-wave infrared image, data with respective maximum advantages is fused, and therefore information loss can be lowered to the maximum. Through the method, three types of classifiers are constructed first, and a fusion image of the medium-wave infrared image and the long-wave infrared image serves as the supplemented training sample; and since a feature early fusion technology is applied to the fusion image, the original single training sample has the outstanding characteristics of respective advantages of the medium-wave infrared image and the long-wave infrared image, and the probability of respective advantage information of medium-wave infrared and long-wave infrared is increased.

The invention discloses a preparation method of a high molecular weight poly-morpholine-2,5-dione derivative and a preparation method of the copolymer thereof. The preparation method of the high molecular weight poly-morpholine-2,5-dione derivative comprises the following steps: (1) morpholine-2,5-dione derivative, organic tin catalyst and dihydric alcohol are weighted and mixed to react to obtain the dihydroxy-terminal poly-morpholine-2,5-dione derivative after separation and purification; and (2) the dihydroxy-terminal poly-morpholine-2,5-dione derivative is mixed with a chain extender in proportion to react under air-isolated conditions to obtain the high molecular weight poly-morpholine-2,5-dione derivative. The high molecular weight poly-morpholine-2,5-dione derivative and the copolymer thereof prepared by the preparation methods have high molecular weight, biodegradability and good mechanical properties owning to high molecular weight, thereby meeting the requirement of the application of high molecular materials for medical use.

The invention discloses a MoS2/graphene/MoS2 sandwich structure and a Na ion battery capacity prediction method, and belongs to the field of physical chemistry. The invention aims to solve problems that in the prior art, experiment measures cannot achieve accuracy of an atomic dimension, an experimental environment is difficult to implement MoS2/graphene/MoS2 material synthesis, theoretical capacity of Na ions of a MoS2 two-dimensional nano layered material is not high enough, and the Na ions cannot be optimally diffused in the material. According to the invention, a bran-new three-layer MoS2/graphene/MoS2 sandwich structure material is constructed by a first principle; a stable structure of the material under a corresponding pressure is calculated for the first time; an optimal interlayerspacing when the structure is stable is obtained; possible electron transfer correlated characteristics of the material are calculated; Na ion embedding/disembedding performance of the material is predicted according to a result of the material; and the result shows that the material can be used as a highly potential Na ion battery (NIB) electrode (negative electrode) material.

The invention discloses a carbon nano tube surface lysozyme molecularly-imprinted polymer. The carbon nano tube surface lysozyme molecularly-imprinted polymer adopts lysozyme as a template molecule, adopts 1-allyl-3-methylimidazolium hexafluorophate ionic liquid and N-tert-butyl acrylamide as a mixing functional monomer, adopts an acrylamide modified carbon nanotube as a matrix, adopts a Tris-HCl buffer solution with the pH being 9 as a reaction system, is obtained under the effect of a cross-linking agent, an initiating agent and a catalyst and has the selective recognition capacity for lysozyme. The number of acting sites is multiple when the template molecule and the functional monomer are combined, the acting force is higher, more effective recognition sites can be formed in the preparation process of the molecularly-imprinted polymer, and therefore the printing effect and the preferential adsorption capacity for lysozyme are better.

Disclosed is a method for synthesizing chiral ilaprazole. The invention belongs to the technical field of pharmacy. At present, reports about ilaprazole chiral compounds are few. The method includes the following steps: under the protection of nitrogen, adding a phase transfer catalyst and isopropyl ether into thioether in order, adding central metal, adding an oxidant, carrying out quenching withan aqueous sodium sulfite solution after reacting at 0 DEG C for 8 hours, carrying out liquid separation, carrying out organic phase desolvation, and then recrystallizing with ethanol to obtain whitecrystals which are the chiral ilaprazole. The method can be used for pharmaceutical research and industrial production of the chiral eprazole. The method has the characteristics of a novel process, few steps, mild reaction conditions and the like.

The invention relates to a face recognition method and a base image synthesis method under illumination change conditions. According to the face recognition method, quotient images are firstly calculated; nine base images of corresponding objects are respectively synthesized according to formulas; illumination parameters Eta of images to recognized are calculated; one frame of novel images of each object, consistent with the illumination conditions of the images to be recognized are synthesized; the projection factor vectors Rho I and Rho of the synthesized images and the images to recognized in a principal component analysis (PCA) space are calculated by a main ingredient analytical method; and the Euclidean distance between two vectors is calculated, and the classification recognition is completed by a nearest neighbor method. The methods provided by the invention have the advantages that one frame of images of each object under the normal illumination condition is used as the training set, a higher recognition rate can be reached, and in addition, the illumination change influence can be perfectly overcome, so the face recognition and base image synthesis problems under the illumination condition are effectively solved.

The invention discloses a continuous manufacturing method of arc-shaped lined radial radiating metal tag characters, which comprises the following steps: a mold library comprising pressure molds of characters required for metal tags is established; through the synthesis of the rotating motion of a tag character mold library, a one-way feeding motion of a metal strip along the rotating tangential direction of the mold library and the compensation motion of the metal strip along the rotating tangential direction of the mold library, the pressure mold of a character in the mold library corresponds to a position on the metal strip at which the character is pressed at; the character is imprinted on the metal strip through the pressure mold of the character; and then all characters are imprinted sequentially. The method uses the synthesis motion to realize the correct positions of the character indentation on the surface of the strip, imprints indentation characters capable of being circumferentially lined along any radius and with the height being radiated in the radial direction on the metal strip which continuously moves, thereby preventing the metal strip from rotating, so as to meet the application requirements of the industrial field on fan strip tags; and the method is convenient, thereby effectively simplifying the structure of the required mechanical equipment.

The invention discloses a liraglutide synthesis method, which comprises the following steps: 1, preparing a Fmoc-Gly-Wang resin; 2, preparing a fully-protected peptide resin from the Fmoc-Gly-Wang resin, protected amino acid and Pal-Glu, the fully-protected peptide resin comprising Depsipeptide Units; 3, performing TFA pyrolysis on the peptide resin to obtain crude peptide; 4, dissolving the crudepeptide obtained in Step 3, regulating the PH and performing ester bond to amido bond reaction to obtain a liraglutide crude product. According to the method, the Depsipeptide Units are introduced toobtain the fully-protected peptide resin and then pyrolysis and ester bond to amido bond reaction are performed to obtain a target product; by introduction of the Depsipeptide Units, problems about synthesis of difficult sequences of the liraglutide can be solved, and the purity and the yield of the synthesized crude peptide can be greatly improved.

The invention belongs to the technical field of additive manufacturing, and particularly relates to a gradient functional material synthesis and additive manufacturing integrated mechanism. According to the technical scheme, the gradient functional material synthesis and additive manufacturing integrated mechanism comprises a support, a shell, a powder feeding cabin servo driving system, a powder feeding cabin lifting mechanism, a forming cabin servo driving system, a forming cabin lifting mechanism, a galvanometer control card, a galvanometer, a laser device, a CNC system, a servo driving system, a laser system and an atmosphere system, wherein a powder feeding and powder laying mechanism is fixedly installed on the support. The gradient functional material synthesis and additive manufacturing integrated mechanism has the beneficial effects that gradient control over the powder feeding amount, the powder laying layer thickness, the laser heating source temperature and the like each time is synchronously and consistently achieved in a fusion manner till FGM material synthesis and additive manufacturing integrated forming is achieved, the forming efficiency and quality are improved, and the technical problems of gradient function integration type and FGM material synthesis are solved; and the technical problems of FGM material synthesis and additive manufacturing integration and integration process preparation are further solved.

The invention discloses a low-viscosity preparation method of cationic polyacrylamide copolymer water-in-water dispersion liquid. The key point of the method is as follows: a dispersion liquid of a seed polymer dissolved with monomers is prepared before synthesis of the dispersion liquid, and then the dispersion liquid is prepared through polymerization, wherein the seed polymer can be subjected to phase splitting in a salt solution to form micro particles namely 'seeds'. As the polymerization process takes seed internal polymerization as the primary from the beginning, the viscosity of the system in the whole polymerization process can be effectively reduced, and the storage stability of the formed water-in-water dispersion liquid can not be easily influenced by the temperature. The preparation method of the dispersion liquid is suitable for the industrial production of the water-in-water dispersion liquid, and is especially suitable for the preparation of the cationic polyacrylamide copolymer water-in-water dispersion liquid with low and high degree of ions.