355results about How to "Synthesis speed" patented technology

The invention relates to the technical field of image communication, and particularly relates to a method for acquiring a panorama image by using two fish-eye camera lenses. The method comprises the following operation steps: (1) camera configuration: two fish-eye lenses with view angles of greater than 180 degrees are oppositely arranged on a camera, so that two ends of the view angles of the two fish-eye lenses are overlapped; (2) image acquisition: the camera is arranged in a panorama, and acquires a part of the panorama through one fish-eye lens to form a first image, and acquires the other part of the panorama through the other fish-eye lens to form a second image, and two ends of the first image and the second image are overlapped; (3) image processing: a processor of the camera splices the first image and the second image to form a 360-degree panorama image. According to the method provided by the invention, two images can be quickly obtained by the two fish-eye lenses, and combined into a panorama image, the operation is simple and convenient, and the combination effect is good.

The TS-1 molecular sieve preparing process features that surfactant is added into the mother liquid for synthesizing the molecular sieve, so that most of the silicon source and titanium source after hydrolysis agglomerate into solid grains. After the solid grains are filtered out and crystallized, the filtrate containing small amount of residual silicon source and titanium source is used as the alkali source for hydrolyzing the newly added silicon source and titanium source for synthesizing the next batch of molecular sieve. The process has greatly reduced environmental pollution, lowered preparation cost and raised synthesizing efficiency and benefit.

The invention discloses a novel method for reducing and preparing functionalized nano-silver based on polyphenol. The preparation process is as follows: 1), stock solutions of all reaction liquids are prepared, and the stock solutions comprise a silver-bearing predecessor stock solution, a polyphenol compound stock solution and an alkaline stock solution; 2), a polyphenol compound solution is prepared: a certain amount of the polyphenol compound stock solution is taken and added into ultrapure water, and the stock solution and the ultrapure water are mixed uniformly; 3), the pH value and the temperature of the polyphenol compound solution are adjusted: a proper amount of the alkaline stock solution is taken and added into the polyphenol compound solution prepared in the step 2), the pH value of the mixed solution is adjusted, the mixed solution is placed and kept out of the sun, and the temperature of the mixed solution is adjusted; and 4), a nano-silver solution is generated: a certain amount of the silver-bearing predecessor stock solution is added into the mixed solution with adjusted pH value and temperature in the step 3) and is kept out of the sun, and reaction is performed for a certain time. The operation method is simple, the synthesis speed is high, the cost is low, the biocompatibility is high, the method is pollution-free, the sizes of the synthesized nano-silver particles are small, the monodispersity is good, and the nano-silver also has the performance of a polyphenol compound.

The invention provides a panoramic photography method and a terminal. The method comprises the following steps: receiving a photography shooting command; starting a rotary fisheye camera, rotating by a target shooting angle at a preset rotating speed, and simultaneously starting the rotary fisheye camera to shoot a target shooting quantity of preprocessed pictures at a preset shooting frequency; correcting the target shooting quantity of preprocessed pictures according to a preset fisheye picture distortion correction algorithm; synthesizing the corrected target shooting quantity of preprocessed pictures into a distortionless panorama picture, and outputting the distortionless panorama picture. By implementing the panoramic photography method and the terminal, the panoramic photography efficiency of the panoramic photography terminal can be increased.

The invention discloses a method for preparing rare-earth vanadate LaVO4:Eu red fluorescent powder, which comprises the following steps: weighing La2O3 and Eu2O3 according to molar ratio; dissolving two oxides with concentrated nitric acid, and diluting the two oxides with deioniezed water; weighing NH4VO3 of which the mole number is two times that of rare-earth oxide to be prepared into dilute solution, and adding the dilute solution into rare-earth solution to obtain yellow clear solution; adding citric acid of which the mole number is 0.75 time that of rare-earth atoms and taken as a complexing agent into the yellow clear solution; adjusting the pH value of the mixed solution to be 5 to 7 with nitric acid and ammonia water; pouring the obtained emulsion into a polytetrafluoroethylene reaction kettle after the mixed solution is stirred, placing the reaction kettle into a microwave oven, and performing microwave irradiation for 8 to 10 minutes; and removing supernatant liquid after performing high speed centrifugation on the obtained suspension liquid, and washing and drying sediment to obtain the red fluorescent powder LaVO4:Eu. The method has the advantages of simple and convenient operation and quick synthesis. The obtained powder has the characteristics of high purity, high crystallinity, uniform particle size, and stable luminescence.

The present invention relates to a method for microwave-aided quickly synthesizing zinc selenide fluorescence quantum point. Said method uses water as solvent, and adopts the following steps: mixing zinc salt or zinc oxide and water-soluble mercaptocompound, injecting soduim hydrogen selenide or potassium hydrogen selenide produced by adopting sodium borohydride or potassium borohydride and zinc powder and making them produce reaction to obtain zinc solenide ZnSe precursor solution, then placing said solution in a closed teflon tank and making reaction in a temperature-controllable and pressure-controllable microwave reactor so as to quickly synthesize ZnSe fluorescence quantum point.

The invention relates to the technical field of image processing, and discloses an intelligent group photo taking method and device, electronic equipment and a storage medium, and the method comprisesthe steps: responding to a group photo taking instruction inputted through a photographing operation interface, obtaining a photographed first image, and obtaining reserved region information specified for a to-be-group-photo target in the first image through the photographing operation interface; in response to a sending instruction input through the shooting operation interface, sending a groupphoto request to a background server, the group photo request comprising the first image and reserved area information; and receiving a group photo image sent by the background server, wherein the group photo image is obtained by fusing a target image corresponding to the target to be subjected to group photo taking into the first image by the background server according to the reserved area information, and the target image is extracted from a second image containing the target to be subjected to group photo taking. According to the technical scheme provided by the embodiment of the invention, the operation is simple, the image synthesis speed is high, and the group photo image fusion effect is good.

The present invention is one kind of small peptide feed additive with rich small peptide and probiotics matter and no anti-nutrilite. The small peptide feed additive is prepared with soybean residue, wheat bran, corn protein powder, corn starch, alcohol dreg, tropina powder, waste molasses and / or starch, and through inoculating probiotics seed and solid fermentation to eliminate anti-nutrilite and generate small peptide, lactic acid and other probiotics matters. It has total small peptide content not less than 15.0 wt%, amino nitrogen content 0.5-1.0 %, total nitrogen content not less than 8.0 %, lactic acid content not less than 3.0 %, water not more than 12.0 % and molecular weight smaller than 20,000 Dalton. The small peptide feed additive can raise the speed of synthesizing protein in animal body, appetize, raise body's immunity, promote the absorption of animal body on mineral elements, regulate physiological activity and improve nutritious condition.

The invention discloses a lightweight multi-speaker voice synthesis system and electronic equipment. The system comprises a text feature extraction and normalization module, a speaker feature extraction module, a feature fusion module and a voice generation module. The text feature extraction and normalization module is used for carrying out encoding and feature extraction on to-be-processed textinformation by adopting a lightweight encoder, carrying out duration prediction on each word or phoneme corresponding to text deep features output by the lightweight encoder by adopting a lightweightduration prediction network, and carrying out length normalization processing to obtain regular text features with length equal to that of a target Mel spectrum. The speaker feature extraction moduleis used for generating features capable of representing a target speaker. The feature fusion module is used for fusing the features of the target speaker with the regular text features. The voice generation module is used for carrying out deep feature extraction, dimension mapping and residual error integration on the fused features and generating voice. The system supports multi-speaker voice synthesis and is high in synthesis speed.

The invention discloses a singing sound synthesis system, which comprises a storage unit, a beat unit, an input unit and a processing unit, wherein the storage unit is used for storing at least one melody; the beat unit is used for indicating a beat; the input unit is used for receiving a plurality of sound signals; and the processing unit is used for processing the sound signals and generating a synthesized singing sound signal. The sound signals are generated by reading aloud or humming by a user according to the melody and the beat, so each sound signal corresponds to the melody and the beat and is processed directly, and the time and the cost of pre-recording a large number of user corpuses are saved, the system resources are saved, and the song synthesis speed is improved; furthermore, the finally obtained synthesized singing sound has tones of users, and the effect is quite lifelike.

The invention discloses a detonation method for synthesizing oxide powder, wherein the oxide precursor can be used to compose stable detonation explosive, through which the oxide precursor can produce under high temperature and high pressure of detonation oxide powder, nano oxide powder, inter-molecule mixed compound oxide powder, the explosive can be added by inert particles so as to synthesize nano oxide coated powder.

The invention relates to a high-efficiency synthesis method of TALE (transcription activator like effectors) repeated segments. The high-efficiency synthesis method includes designing DNA (deoxyribonucleic acid) template and a primer for PCR (polymerase chain reaction) amplification, utilizing uracil-specific excision reagent (USER) to manufacture adhesive tail ends at two ends of the DNA segments by the uracil DNA excision method, connecting a plurality of DNA segments of a single, two or three TALE repeated units with carriers according to correct sequence to obtain recombinant carriers of TALE proteins capable of expressing specific target genes, and completing knockout, knock-in, overexpression and suppression expression of the target genes by means of the recombinant carriers. The high-efficiency synthesis method is timesaving, convenient, high in correctness and capable of realizing high throughput and meeting automatic requirements.

The invention relates to a preparation method of CuInxGa1-xSe2 powder which is material of absorption layer material of film solar battery, characterized in that the method comprises the following steps: step 1) of selecting raw materials: weighing Cu powder, In powder, Ga powder and Se powder according to molar ratio of 1:0.7:0.3:(2.1-2.5); step 2) of mixing; step 3) of molding to shape so as to obtain a mixture billet; step 4) of synthesizing: adopting self-propagating high-temperature synthesis, switching on power of igniting tungsten filament under condition of argon atmosphere at 0.1-0.6MPa, igniting the mixture billet to carry out self-propagating high-temperature synthesizing reaction at synthesizing reaction speed of 2-3mm / s; after the reaction, cooling in the furnace, ball milling to obtain the CuInxGa1-xSe2 powder. The preparation method has the features of short preparation time, stable stoichiometric proportion, controllable stoichiometric proportion of product, simple process, high production efficiency and low cost.

The invention discloses a system for preparing indium phosphide crystals by using an indium-phosphorus mixture. The invention belongs to the technical field of semiconductors. The system comprises a vacuum system, an inflation and deflation system, a temperature and pressure control system, an electrical control system, a cooling circulation system, a weighing system and a furnace body, wherein acrucible rod rotary lifting mechanism and a seed crystal rod lifting mechanism are arranged on the furnace body; the system is characterized in that the furnace body is divided into a synthetic growthchamber, a feeding chamber and a charging chamber, the charging chamber and the feeding chamber are separated by an inserting plate, a turnover feeder is arranged in the charging chamber, a feeding pipe is arranged in the feeding chamber, one end of the feeding pipe is in butt joint with the turnover feeder, and the other end of the feeding pipe extends into a crucible in the synthetic growth chamber to form an indium-phosphorus mixed ball feeding structure; wherein the crucible is positioned on a crucible rod, and a seed crystal rod lifting mechanism is arranged on a top cover of the synthetic growth chamber. Indium-phosphorus mixed balls can be rapidly put into the crucible covered with liquid boron oxide, indium phosphide crystals are formed through in-situ pulling after synthesis, thesynthesis speed is higher, and industrial production is facilitated.

The embodiment of the invention discloses a display method and device, electronic equipment and a computer readable storage medium, and relates to the technical field of image processing. The method comprises the steps of obtaining a to-be-synthesized layer, wherein the to-be-synthesized layer comprises an interface layer of a video playing interface and a multimedia layer corresponding to a videoplayed on the video playing interface; calling a graphic processor to synthesize the interface layer to obtain a to-be-mixed layer; calling a multimedia display processor to synthesize the multimedialayer and the to-be-mixed layer to obtain a target image; and displaying the target image on a video playing interface. According to the method, the to-be-synthesized image layers are synthesized bycalling the different processors respectively, so that the power consumption caused by multi-image-layer superposition can be reduced, the image layer synthesis speed is increased, and the image synthesis mode is more reasonable.

The invented fluorescent powder is obtained by using metal nitrate-organics combustion method through synthesis process, and its component is Zn2-2xSiO4:2xMn, X=0.0025-0.075; As compared with similarmanganese zinc silicate fluorescent powder synthesized by traditional method its fluorescent life is reduced to 4-8 ms from above 10 ms to eliminate the double-image effect of long after-glow, and its production process is simple, and said invented fluorescent powder is suitable for plasma display or cathode-ray display.

The invention discloses a preparation method for a composite hollow material. The preparation method comprises the following steps: growing a metal organic framework thin film by use of a liquid phaseepitaxial growth method, and then performing calcination. The method has the advantages of high synthesis speed, high preparation efficiency, controllable thin film thickness, environmental friendliness, low cost, simplicity for operation and the like, and a convenient method is provided for large-scale preparation. An obtained carbon-based composite material is of a hollow structure and relatively high in electrical conductivity, and has broad application prospect for super capacitors and other electrochemical fields, and electrons can be diffused and transported conveniently.

The invention discloses an industrial fermentation method of riboflavin, which comprises the following steps of: filling a seed culture medium into a 10m<3> seed tank, and performing oxic cultivation; and filling a fermentation medium into a 200m<3> fermentation tank for fermentation, mechanically stirring, adding sterilization starch glucose liquid, stopping fermenting till that the glucose is completely consumed or the dissolved oxygen is raised to be 60%, and extracting the riboflavin from the fermentation liquid. After the industrial fermentation method is used, the conventional riboflavin material-supplementing fermentation technology is changed, the low-concentration raw material cultivating bacteria is adopted, the material is quantificationally supplemented according to the changeof the dissolved oxygen of the fermentation solution, the excessive multiplication of the thallus can be effectively controlled, the deviation of the optimum control temperature caused by the excessive supersession can be avoided, the defects of the insufficient ventilation and oxygen supply can be remitted, and the thallus vigor can be kept, so that the indusial fermentation unit of the riboflavin is improved by more than 18g / L, and the yield is increased by 20% compared with the common fermentation.

The embodiment of the invention discloses a fisheye panoramic image synthesis processing method and device. The fisheye panoramic image synthesis processing method comprises the steps of acquiring first test fisheye images of a chessboard target, processing the first test fisheye images according to a Zhengyou Zhang calibration algorithm to acquire intrinsic parameters of a fisheye camera; acquiring second test fisheye images of an annular target, and acquiring extrinsic parameters of the fisheye camera according to an iterative closest point algorithm; acquiring fisheye images to be synthesized, acquiring a corresponding relation between pixel coordinates of the fisheye images to be synthesized and pixel coordinates of fisheye image nonstandard Thoby expanded image according to the intrinsic parameters and the extrinsic parameters; processing the fisheye images to be synthesized according to the corresponding relation to acquire a synthesized panoramic image. The corresponding relation between the pixel coordinates of the fisheye images to be synthesized and pixel coordinates of the panoramic image can be acquired through acquiring the intrinsic parameters and the extrinsic parameters of the fisheye camera, thereby being convenient for processing according to the corresponding relation to acquire the synthesized panoramic image. The original images are photographed simply, the image synthesizing process is high in automation degree, and real-time image synthesis can be performed.

The invention discloses a method for preparing carborundum ceramic, which comprises the following steps: mixing bamboo charcoal with silicon powder after crushing and grinding bamboo charcoal by solid phase sintering, according to the mass ratio of 1 to 3, and evenly mixing the mixture of silicon and charcoal with phenolic resin according to the weight volume ratio of 1 to 1; preheating the mixture at the temperature of 140 DEG C for molding; under the state of vacuum or Ar gas atmosphere, increasing the temperature to the set final sintering temperature for high-temperature sintering; maintaining the temperature for 30 minutes, and cooling the mixture to produce the SiC ceramic material. In the method, carbide materials can be produced by an organic texture of bamboo materials through high-temperature sintering, the bamboo materials are charred under anaerobic condition to produce a charcoal frame with a bamboo pore structure, and the charcoal frame can be used as a biological template for ceramic phase filtering and reacting. The ceramic obtained through filtering and sintering reactions of metal or inorganic non-metal substances not only has a fine structure of bamboo, but also increases the reacting area, improves the resultant velocity, and has advantages superior to the prior ceramic preparation method.

The application provides an image processing method and device, and electronic equipment. The image processing method comprises the following steps: acquiring a first image taken by a first pick-up device and a second image taken by a second pick-up device; performing comparison on all pixels of the first image and the second image to mark pixels whose pixel similarity is no greater than a first threshold value as same pixels and make pixels whose pixel similarity is greater than the first threshold value as different pixels; and performing encoding on all pixels of the first image and the different pixels in the second image. In the application, the pixels in the two images whose pixel similarity is no greater than the first threshold value are marked as the same pixels, and the pixels in the two images whose pixel similarity is greater than the first threshold value are marked as the different pixels, and then all pixels of the first image and the different pixels in the second image are encoded. Thus, according to the application, when encoding is performed on two images, the encoding data volume is reduced, so that the resultant velocity can be improved.

The invention discloses a method for quickly acclimatizing active sludge mixed flora to prepare polyhydroxyalkanoate (PHA) by using an aerobic dynamic drainage method and relates to a method for preparing the PHA. The invention solves the problems that the acclimatization time for synthesizing PHA through active sludge mixed flora is long, a reactor works unstably and the synthesized PHA is low in content in the prior art. The method comprises the following steps: 1, active sludge is put into a sequencing batch reactor (SBR); 2, 6-12 hours are taken as a cycle of operation, in the cycle of operation, two-time water introduction, precipitation and drainage are carried out, the drainage rate is 1:1, during the first water introduction, a carbon source and various nutrients are introduced, and during the second water introduction, only the supplement of nitrogen nutrient is carried out; 3, 2-4 cycles are operated every day, the sludge detention time is 1-10 days and sludge-water mixed liquid is collected; 4, batch experiments are carried out, half supernatant is discharged, equivalent carbon source is supplemented, aeration, precipitation and drainage are carried out, and the process is repeated for 6 to 8 times. The invention belongs to the field of biodegradable plastic synthesis.

A Te / MoS2 van der Waals heterostructure includes a MoS2 nanosheet layer and a Te nanowire layer epitaxially grown on the surface of the MoS2 nanosheet layer, and a Te nanowire layer epitaxially grownon the surface of the MoS2 nanosheet. The Van der Waals heterostructure of the present invention uses a Te nanowire with a narrow band gap and a one-dimensional structure as an infrared absorption layer and a MoS2 nanosheet with a two-dimensional structure as a conductive channel, and the structure has stable chemical properties. Applied in infrared detector, infrared detector works in photovoltaic mechanism, has good performance, and shows ultra-high responsiveness (1.9 * 103 A / W) and fast response time (Tau rising=15 ms, Tau decay=32 ms) at 1550 nm. As that Te / MoS2 van der Waals heterostructure is prepare by a physical vapor deposition method, the Te / MoS2 van der Waals heterostructure has the advantages of low cost, simple process, high synthesis speed and the like.

The invention relates to the technical field of organic material preparation, in particular to a method for rapidly preparing a two-dimensional covalent organic framework material at a low temperatureand the two-dimensional covalent organic framework material. The material is obtained by reacting aromatic amine with aromatic aldehyde at the temperature of 0 DEG C to room temperature, wherein thearomatic amine is one or more of 1, 4-phenylenediamine, 1, 4-biphenyl diamine, 4, 4', 4''-(1, 3, 5-triazine-2, 4, 6-triyl)triphenylamine, 1, 3, 5-tri(4-aminophenyl)benzene, tri(4-aminophenyl)amine, tetra(4-aminophenyl)porphyrin and tetra (4-aminophenyl)methane, the aromatic aldehyde is one or more of aromatic aldehyde containing pyridine and phenazine structures, 3, 3'-dipyridine-6, 6'-diformaldehyde, 2, 2'-dipyridine-5, 5'-diformaldehyde, 5,5',5''-(phenyl-1, 3, 5-triyl)tripyridylaldehyde, 6,6',6'''-(phenyl-1, 3, 5-triyl)tripyridylaldehyde, and the molar ratio of the aromatic amine to the aromatic aldehyde is (0.1-10): 1.

A liquid phase synthesis process of diindium triselenide double-temperature zone vacuum tight tube is characterized by comprising the following steps: 5N high-purity metal In is pressed and broken into small blocks or powders, and 5N high-purity metal Se is also Crush into small pieces and put them into a quartz tube together, use a vacuum unit to evacuate the quartz tube to a vacuum of 10-3 Torr, and then seal the quartz tube; put the sealed tube filled with raw materials into a high-temperature box furnace for heating, and the double-temperature zone is dense. The tube synthesis method is that the sealed tube is kept at an atmospheric pressure, one end of the sealed tube is in the high temperature zone of the heating furnace, the temperature in the tube reaches 900-1000°C, and the other end is kept at 120-200°C in the water-cooled low-temperature zone, and the reaction in the tube is controlled. The In2Se3 compound was synthesized from In and Se within 4 hours; after the reaction in the tube was completed, the quartz tube was cut open, the In2Se3 pieces were poured out, and then vacuum-packed in a plastic bag with a vacuum degree of 10-1 Torr, and put into the finished product warehouse. The liquid phase synthesis process of the diindium triselenide double temperature zone vacuum tight tube of the invention is simple and safe in production.

The invention provides a hand intelligent 3D information acquisition and measurement device and method. The acquisition and measurement device comprises an image acquisition device and a bearing plate, and the image acquisition device and the bearing plate are oppositely arranged; the bearing plate is used for bearing hands; the image acquisition device is arranged on the rotating device, and an included angle gamma is formed between the optical axis of the image acquisition device and the rotating plane. A mode of forming an included angle between a camera optical axis and a rotating plane isproposed for the first time to simultaneously improve the synthesis speed and synthesis precision of the hand 3D model. By optimizing the positions of pictures acquired by the camera, it is guaranteed that the 3D synthesis speed and synthesis precision of the hand can be improved at the same time; and when the position is optimized, angle measurement and target size measurement are not needed, sothat the applicability is higher.

The invention relates to a preparation method of a chemical nanomaterial catalyst, and especially relates to a preparation method of an iron and nitrogen doped carbon nanoparticle photocatalyst. The method comprises the following steps: mixing materials: weighing 1.0g of a carbon source substance and 1.0g of a substance rich in amino groups, carboxyl groups and hydroxy groups, mixing the above substances in a 250mL beaker, adding 0.1g of iron trichloride, and adding a small amount of distilled water to dissolve above substances in order to obtain a purple solution; generating iron and nitrogen doped carbon nanoparticles: placing the solution in a constant temperature drying box, and heating at 210DEG C for 2h; and naturally cooling to obtain a brown-yellow foam solid in the beaker, wherein the solid is the iron and nitrogen doped carbon nanoparticles. The iron and nitrogen doped carbon nanoparticle solid is synthesized through direct co-heating with the carbon source substance and the substance rich in amino groups, carboxyl groups and hydroxy groups as precursors and iron trichloride as an iron source, so the method has the advantages of wide material sources, few synthesis steps, fast synthesis speed, no need of large scale devices, less investment, realization of macro production, and suitableness for industrial requirements.

The invention discloses a 3D synthesis fitting method and system. The method comprises the following steps: 1) obtaining two photos of a garment; 2) identifying a contour line and key nodes of the photos of the garment; 3) calculating the same fitting points of the two pictures for fitting, and generating a garment virtual three-dimensional model of the basic model; 4) carrying out depth image shooting on the human body to obtain a single depth image; 5) converting the single depth image into a three-dimensional point cloud, and obtaining matching point pairs between the three-dimensional point cloud and the vertex of the reconstruction model and between the three-dimensional point cloud and the vertex of the parameterized human body model; 6) establishing an energy function according to the matching point pair, and solving a non-rigid motion position transformation parameter and a parameterized human body posture model parameter of each vertex on the reconstruction model together, and7) solving the energy function, so that the 3D composite image generated based on the body data and the clothes data can be used for experiencing fitting conveniently and quickly.

The invention relates to the technical field of artificial intelligence, and discloses a speech synthesis model training method. The method comprises the following steps: obtaining a training text, and carrying out phoneme conversion on the training text by using a preset speech synthesis model to obtain a phoneme sequence, wherein speech synthesis model comprises an encoder, a decoder, a residual network and a WaveGlow vocoder; sequentially processing the phoneme sequence by using the encoder, the decoder and the residual network to obtain a target Mel spectrum; performing parallel audio conversion on the target Mel spectrum by using the WaveGlow vocoder to obtain a target audio; and performing loss calculation on the target audio to obtain a training loss value, and adjusting parameters of a speech synthesis model according to the loss value to obtain a target speech synthesis model. In addition, the invention also relates to a speech synthesis method and device, equipment and a storage medium. According to the invention, the accuracy of the speech synthesis model can be improved, and the speech synthesis training speed of the speech synthesis model is accelerated.