12results about How to "Good synthesis effect" patented technology

The invention relates to the technical field of image processing, in particular to a real-time exposure control and image synthesis method for a multi-lens array, which comprises the following steps: an acquisition step: acquiring images shot by a plurality of lenses and corresponding sensor read-out rate information; a processing step comprising: determining exposure parameters through a multi-level hardware level exposure control unit based on the image and the sensor readout rate information; adjusting exposure settings of the plurality of lenses according to the exposure parameters; generating a mask based on the adjusted images shot by the plurality of lenses; performing image synthesis according to the mask and the images shot by the plurality of lenses; the output step comprises the step of outputting the synthesized image, the method can complete exposure parameter adjustment of a plurality of lenses within the millisecond level, and the real-time performance of the system is greatly improved. Meanwhile, an exposure prediction mechanism based on reinforcement learning enables the system to quickly adapt to scene changes, and the problem of response lag of a traditional method is effectively solved.

The invention provides a preparation method for efficiently synthesizing hectorite, aiming at the defects that the existing hectorite synthesis technology is high in cost, complex in condition, time-consuming, energy-consuming and the like, process improvement is carried out, and the method comprises the following core steps: adding a magnesium carbonate and magnesium oxide mixed magnesium source, a specific silicon source and a single lithium source into deionized water at room temperature, and carrying out high-speed shearing to obtain uniform slurry; then adjusting the pH value by adopting sulfuric acid, hydrochloric acid, sodium carbonate or introducing a plurality of regulators such as carbon dioxide, and shearing; and performing high-temperature crystallization in a closed container, and sequentially performing filter pressing, washing, drying, grinding and sieving to obtain a finished product. According to the preparation method for efficiently synthesizing hectorite provided by the invention, various cheap raw materials are selected to replace high-purity chemicals, multi-link optimization is realized, the cost is reduced, the efficiency is increased, time is shortened, energy is saved, and the product is excellent in quality, high in purity, few in impurities, excellent in microstructure, dispersed, transparent, high in rheological property and huge in application potential in the fields of cosmetics, well drilling, coatings and the like; the method has breakthrough significance and wide prospects in industrial production and product application.

The embodiment of the application provides an image synthesis method, device and computer readable medium, which adopts a corresponding manner to respectively acquire background feature information, text feature information, mask feature information, stacking feature information and target feature information in a target image and a background image, then performs feature fusion processing on the above feature information to acquire fusion feature information, and further generates a final synthesis image according to the fusion feature information. Since different feature information for generating the fusion feature information contains specific features in different aspects, when the final synthesis image is reconstructed according to the fusion feature information, the synthesized image can be more beautiful, natural and better in synthesis effect.

The invention discloses an alloy for synthesizing IIa type diamonds, which is prepared from the following raw materials in percentage by mass: 70-85% of iron powder, 15-25% of aluminum powder and 2-3% of titanium powder, and a preparation method of the alloy comprises the following steps: respectively weighing the iron powder, the aluminum powder and the titanium powder according to the mass percent; after iron powder, aluminum powder and titanium powder are evenly mixed, the mixture is put into a vacuum smelting furnace to be smelted, and an intermediate material is obtained after smelting; pressing the material into an alloy bar by using a hot extrusion die; carrying out linear cutting processing on the alloy bar to obtain an initial alloy sheet; and the initial alloy sheet is subjected to vacuum sintering purification, the alloy for synthesizing the IIa type diamond is obtained, and the alloy is applied to synthesis of the IIa type diamond. The quality of the IIa type diamond prepared by the method is guaranteed, the yield is high, and the high-yield and high-quality IIa type diamond can be synthesized under the condition of low cost.

This invention discloses a high-mannitol-producing strain of *Limosilactobacillus fermentum* and its applications, belonging to the field of biosynthesis technology. This strain, named *Limosilactobacillus fermentum* PY20 (GDMCC NO: 67749), was obtained from naturally squeezed persimmon juice. It exhibits excellent mannitol synthesis ability in fructose-based fermentation, growing and converting mannitol in a medium containing 30–60 g / L fructose with a conversion rate exceeding 69.77%. This invention overexpresses the endogenous mannitol dehydrogenase gene of PY20 in this bacterium. The resulting engineered bacterium grows and converts mannitol in a medium containing 30–60 g / L fructose with an efficiency exceeding 78.13%, representing an increase of over 11% in both mannitol yield and conversion efficiency compared to PY20, and demonstrating good genetic stability.

The application provides a rhodioloside production strain and a construction method and application thereof, the strain lacks tyrR, feaB, ldhA, ushA, pykF genes, up-regulates tktA , aroG fbr 、 tyrA fbr、 pgm, galU, gntK the transcription level of a gene, and heterologously introduces a TDC gene from Lactobacillus brevis, a TYO gene from Micrococcus luteus, a ARO10 gene from Saccharomyces cerevisiae, and a ADH6 gene, heterologously introduces a GDH gene from Bacillus and a sugar transferase Oft8gt1 gene from Osmanthus fragrans; the construction method is to reconstruct the metabolic network of Escherichia coli to rhodioloside through metabolic engineering and genetic engineering means, which can effectively utilize glucose to synthesize rhodioloside from scratch, improve the production level of rhodioloside, and lay a solid foundation for the industrialized scale production thereof.

The invention relates to an image generation method and apparatus, an electronic device, a storage medium and a program product. The method comprises the steps of obtaining a preset object image including a to-be-synthesized object and a to-be-processed image; inputting the to-be-processed image and a preset object image into a preset image generation model, and generating a target synthetic image on the basis of performing mapping correction on the position information of the area where the to-be-synthesized object is located in the preset object image based on the position information of the to-be-synthesized area in the to-be-processed image, the target synthetic image is an image after the to-be-synthesized object is synthesized to the to-be-synthesized area in the to-be-processed image. By using the embodiment of the invention, the model can be helped to pay attention to high-frequency details such as texture details and edge contours of the object to be synthesized, the detail fidelity is improved, the detail reduction degree in the synthesized image can be further improved, and the image synthesis effect is effectively improved.

The present invention relates to a method for enhancing space VLBI signals based on a weighted full spectrum synthesis method, comprising the steps of: S1: performing a first correlation process on signals received by a space telescope and n ground telescopes to obtain a first cross-correlation power spectrum; S2: obtaining the residual time delay and residual time delay rate to be compensated between the signals of the n ground telescopes participating in the synthesis; S3: obtaining the phase to be compensated; S4: synchronizing the signals received by the telescopes participating in the synthesis to the same wavefront; S5: searching for the best weighting coefficient, and performing weighted synthesis on the telescopes participating in the synthesis to form a virtual telescope; S6: performing VLBI interference processing on the virtual telescope and the space telescope. The method for enhancing space VLBI signals based on a weighted full spectrum synthesis method of the present invention improves the baseline sensitivity by synthesizing the signals of multiple ground telescopes to form a virtual telescope and then performing VLBI with the space telescope.

The application belongs to the technical field of organic synthesis, and particularly relates to a preparation method of a chiral dihydroquinolone compound. The application utilizes N-heterocyclic carbene (NHC) as a catalyst, and generates the chiral dihydroquinolone through a nitrogen hetero-diene Diels-Alder reaction of a chloroaldehyde and an azo-ortho-benzoquinone precursor under the action of NHC and an alkaline reagent. The preparation method of the application does not need to use a transition metal as a catalyst, can perform a reaction under relatively mild conditions, and has the advantages of green environmental protection, low cost, wide substrate selectivity, mild reaction conditions and the like. In addition, by optimizing the reaction conditions of the preparation method, the product has high yield, high purity, unique cis selectivity and excellent enantioselectivity. The application provides a new route and new idea for the chiral dihydroquinolone compound, can play an important role in the fields of drug intermediates and the like, and has good application value and potential.

The present invention discloses a distributed electromagnetic field space power synthesis method based on a motion platform, which belongs to the technical field of radio transmission systems using radiation fields, including: obtaining key parameters affecting synthesis efficiency in typical scenarios based on theoretical calculation and analysis of synthesis efficiency influencing factors; constructing a database of synthesis elements and synthesis efficiency in typical scenarios; training a multi-source multi-platform collaborative control model based on reinforcement learning based on the constructed database; and implementing collaborative control of distributed electromagnetic field space power synthesis based on the trained control model. The present invention can realize efficient synthesis and superposition of electromagnetic fields in free space, solving the problem that the effective distance and miniaturization of electromagnetic wave interference rejection equipment cannot be taken into account at the same time; through reinforcement learning of the posture adjustment of the motion platform and the transmitting antenna, as well as the output phase and pulse delay control strategy of the microwave source, the problem that the synthesis efficiency cannot be guaranteed when the motion platform is mounted is solved.

This invention provides an L-homoserine-producing strain, its construction method, and its applications. The strain does not contain plasmids. E.coli W3110, as a chassis strain, had the relA and thrB genes knocked out, and heterologously expressed genes derived from... Clostridium acetobutylicum The gapC gene and the aspB gene derived from Bacillus subtilis were overexpressed, along with ppc, asd, and thrA. fbr ,rhtA,pntAB,spoT fbr Genes; the strain described above can effectively improve the L-homoserine synthesis efficiency by knocking out genes of the L-homoserine degradation pathway, enhancing the expression of key enzymes in the pathway, optimizing the L-homoserine transport system, increasing the reducing power NADPH content, and enhancing the ability to withstand amino acid starvation. It is genetically stable, requires no addition of resistance substances, has high acid production efficiency, and has good L-homoserine synthesis capacity.

The application relates to a preparation method of copper powder with adjustable particle size, a certain amount of copper sulfate and functionalized ionic liquid are weighed and added into a certain volume of solvent I, stirring and dissolving to obtain solution A; a certain amount of a reducing agent is weighed and added into a certain volume of solvent II, stirring and dissolving to obtain solution B; solution A and solution B are mixed and stirred at a temperature of 70-90 DEG C for 2h; then centrifugal separation, washing and vacuum drying are carried out to obtain copper powder; the solvent I and the solvent II are the same and can be selected from one or more of distilled water, ethylene glycol, propylene glycol and glycerol. The application has the advantages of simple process, green environmental protection and easy amplification; the carboxyl functionalized ionic liquid is adopted, the oxidation resistance of the copper powder is improved; the particle size of the copper powder can be adjusted within 200nm to 5.2mu m by changing the type, concentration and reaction temperature of the ionic liquid, the prepared copper powder has uniform particle size distribution, good dispersity, high crystallinity, good conductivity and good oxidation resistance.