113results about How to "Increase extraction rate" patented technology

The invention relates to a method for comprehensively extracting effective ingredients in tea. The method comprises the following steps of: with a faintly acidic water solution as a main extraction solvent and a certain amount of organic solvent as an auxiliary extraction solvent, carrying out step-by-step extraction on water extracts to obtain four effective ingredients, namely tea polyphenol, caffeine, tea polysaccharide and theanine; and meanwhile, extracting tea protein from tea residues by using an alkali dissolution and acid deposition method. According to the method, as water is used as the main solvent, the cost is low, the reactions are mild and active ingredients are favorably preserved; as a certain amount of organic solvent is used as the auxiliary extraction solvent, the problems of overhigh cost and product pollution caused by use of a large amount of organic solvents are solved; meanwhile, five effective ingredients, namely the tea polyphenol, the tea polysaccharide, the caffeine, the theanine and the tea protein are extracted, and therefore high extraction rate, high purity and high utilization rate of tea are achieved; the solvents are recycled in the extraction process, so that the preparation cost is reduced; and no alkali and acid waste liquor is discharged in the overall process, and therefore the method is environment-friendly. The overall preparation flow is high in efficiency and low in cost, and therefore the method has a favorable application value.

The invention provides a method for extracting oligo proanthocyanidin from grape seeds, which comprises the following steps: placing materials in extraction tanks, wherein the extraction solvent is water or water-containing ethanol, the using amount is 3-10 times of the volume of material mass, the temperature is 45-100 DEG C, and the time is 20-60 min; leading the content of active ingredients in extraction liquid in all the tanks to be gradually reduced by sequentially extracting the tanks, carrying out liquid discharge on the extraction liquid with the highest content of the active ingredients in all the tanks, entering into the circulating step, then carrying out residue discharge and material addition on the extraction tank which completes a plurality of times of solvent extraction of materials, adding a new solvent during the last extraction of the materials, then transferring by spacing one unit, carrying out a plurality of times of extraction and discharging liquid. The method can ensure that the materials and the solvents of all the extraction units can always keep the greater concentration difference of the active ingredients, accelerate the extraction rate, improve the concentration of the active ingredients of the final solvent and be characterized by saving the solvents, saving energy and the like under the premise of ensuring the higher extraction rate.

The invention provides a method for extracting anthocyanin from nitraria tangutorum peel residues. The method comprises the following steps of pretreatment, wherein the nitraria tangutorum peel residues are subjected to vacuum drying and then smashed to obtain nitraria tangutorum peel residue powder; enzymolysis, wherein the nitraria tangutorum peel residue powder and a plant cell wall degrading enzyme are mixed to be treated; extraction, wherein nitraria tangutorum peel residue enzymatic liquid and an organic solvent are mixed, and the mixture is extracted to obtain a crude nitraria tangutorum peel residue extract; purification, wherein the crude nitraria tangutorum peel residue extract is purified by adopting an adsorption chromatography method to obtain the anthocyanin. According to the method, the nitraria tangutorum peel residues are frozen at low temperature, dried through a vacuum drying method and smashed, it is effectively guaranteed that the structure of part of the anthocyanin, being sensitive to temperature, in the nitraria tangutorum peel residues is not destroyed, and therefore the finally obtained anthocyanin is more in compound variety and high in effective ingredient content. The separation efficiency of the method is high, and the anthocyanin prepared through the method is large in mass and high in purity.

The invention provides a preparation method of natural plant dye. The method comprises the first step of cleaning, the second step of mixing, the third step of ultrasonic extraction, the fourth step of distillation and the fifth step of filtration. According to the preparation method of the natural plant dye, by means of multi-frequency ultrasonic extraction operation, the mechanical effect, the cavitation effect and the thermal effect of the dye can be greatly enhanced; compared with single-frequency acoustic extraction, the extraction time can be shortened by 40% to 60%, the extraction temperature can be declined by 15 DEG C to 20 DEG C, damage to natural pigments and effective components caused by the temperature is reduced, therefore, the extraction rate is increased, and the quality is improved; due to the fact that optimum induction frequencies of different plant cells are different, according to the preparation method of the natural plant dye, different frequencies can be appropriately adjusted and combined, coextraction of various plants with similar hues can be achieved, the energy sources are saved, and the efficiency is improved. The prepared plant dye is stronger in adhesion effect and pure and elegant in color, the antibacterial and anti-virus effects are achieved, and the plane dye is safe, harmless, natural and environmentally friendly.

The invention discloses a landslide disaster prediction method based on a depth belief network. Firstly, a monitoring and early warning system of a landslide body is established, a large number of disaster inducing factors are collected, and the main disaster inducing factors are screened by using a MIV algorithm. The selected disaster inducing factors were standardized and divided into test samples and training samples according to specific proportion. Then, a landslide hazard prediction model based on depth belief network is constructed, which is composed of two-layer RBM and three-layer BPnetwork. CD algorithm is used to pre-train the RBM and update the network parameters. Genetic algorithm is used to supervise the training and learning to ensure the overall optimization of DBN network. Finally, the optimized landslide hazard prediction model is reconstructed to classify the landslide grade and predict the possibility of landslide occurrence. The method disclosed by the invention accelerates the convergence speed by extracting characteristic disaster inducing factors, prevents falling into local optimization, and improves the accuracy of landslide disaster prediction.

The invention discloses a perovskite type solar cell and a modification method of a PEDOT:PSS layer of the solar cell. The perovskite type solar cell comprises an FTO / ITO layer, the PEDOT:PSS layer, alight absorption layer, an electron transmission layer, a BCP layer and an electrode layer; and a cavity transmission layer of the perovskite type solar cell is modified. A material of a modificationlayer includes at least one selected from amino acid, mercaptan and a weakly alkaline metal oxide. Such modification material can improve the electron injection efficiency, improve the stability of perovskite, and inhibit perovskite yellowing of FAI effectively, the material cost is low, an operation method is simple, control is easy, and a new ideal is provided for research on an interface behavior of the perovskite solar cell.

The invention provides a method for extracting the effective component archin of the giant knotweed rhizome, which puts the drugs into five extracting tanks after shattering them to in turn extract the E, D, C, B, A tank with the extracting solution: 30%-70% alcohol whose amount is 8-12 volume of the drug's quality, the temperature: 35-65 deg. and the time: 20-50 minutes, so that the effect component of the extracting solution of the five tanks descendent, it then discharges opeing the tank which has the highest effect component and discharges the dross of the tank which has been five solution extracted, it dose interval removal to the other extracting solution and dose four cycles and then amalgamates the extracting solutions.

The embodiment of the invention discloses a hyperspectral remote sensing image characteristic extraction method and device. Rapid characteristic extraction is achieved for a hyperspectral remote sensing image through collaborative operation conducted by a CPU and a GPU. The algorithm logic control function, the data reading function and the data storage function are achieved on the CPU. The function of large-scale operation such as noise estimation and covariance matrix calculation is achieved on the GPU. When noise estimation is conducted, the hyperspectral remote sensing image is divided into a plurality of image blocks and noise estimation is executed through multiple threads in parallel, and therefore the hyperspectral remote sensing image characteristic extraction speed is increased.

The invention discloses a perovskite battery containing nickel oxychloride nanoparticles as a hole transport layer and a preparation method thereof. As that perovskite battery take the nickel oxide nanoparticles contain chlorine as a hole transport layer, ammonium chloride is used as a chlorine source in the preparation method, so that the size of the nickel oxide nanoparticles contain chlorine ofthe prepared hole transport layer is controlled below 10nm; As that chloride ion is adsorb on the surface of the nickel oxide, the nickel oxide and the chlorine atom become one body. When the perovskite battery is used, on the one hand, the chloride ion can reduce the defect state of the nickel oxide film and improve the extraction rate of the hole; On the other hand, the chloride ions on the surface of nickel oxide can passivate the interface between the hole transport layer and perovskite layer, which can reduce the recombination of electron holes, so that the charge can be transferred efficiently and the current density of the battery can be increased.

The invention belongs to the technical field of coal gangue extraction equipment, and particularly relates to a process for extracting elemental aluminium by coal gangue acidification. According to the process, through arranging a microwave generator and an ultrasonic generator, through controlling the microwave power to be between 780 and 820W and through setting the microwave generation time tobe 1 hour, an extraction ratio of the elemental aluminium in the coal gangue can reach 95%; an extracting speed of the coal gangue is accelerated through the ultrasonic generator; a coal gangue acidification treatment kiln used in the process comprises a kiln body which is internally provided with a squeezing plate, wherein the squeezing plate is designed in an annular shape; a filter plate is arranged below a drive cabin, a grinding groove is formed in the filter plate and grinding balls are arranged in the grinding groove; four stirring rods are uniformly and fixedly connected to the surfaceof a third airbag; an aeration tank is arranged in push plates; and aeration holes are uniformly formed in the surfaces of the push plates and communicate with the aeration tank. The coal gangue acidification treatment kiln is simple in structure and can sufficiently crush the coal gangue, and in addition, the coal gangue can be evenly stirred and mixed and the acidification rate is high.

The invention provides a method for extracting total triterpene of centella asiatica by an enzymic process, which comprises: deactivating endogenous enzymes of centella asiatica; and performing enzymic extraction. The extraction steep is high, the process conditions are mild, the extraction rate is high, the original properties of active ingredients are retained, and the low energy consumption is lowered. By using membrane separation, purification and concentration, organic solvent residue can be avoided effectively, less waste water is produced in the process, the purity of the separated total triterpene of centella asiatica is high, and the extraction rate is high.

The invention discloses a preparation method and an application of an atropa belladonna extract. The preparation method comprises processes as follows: soaking in warm water, ethanol extraction, percolation and the like. According to the medicine preparation method, the inside of a percolator is covered with multiple layers of cellulase membranes, cell walls consisting of cellulose in atropa belladonna are broken with cellulase, leaching of effective components in cells is accelerated, and the utilization rate of raw materials is greatly increased; the atropa belladonna extract prepared with the method can be taken as a novel vascular smooth muscle relaxing medicine and used for preparing medicines for treating hypertension, and a new scheme can be provided for clinical treatment of hypertension.

The invention discloses a novel process for extracting, gathering and purifying stilbene substances in dendrobium officinale. The stilbene substances are important characteristic components in the dendrobium officinale and include phenanthrenes and bibenzyls. By the aid of the novel process, the problem that stilbene is obvious in biological activity but effective, simple and convenient processes for extracting and purifying the stilbene are unavailable at present can be solved. The novel process for extracting and purifying the stilbene substances in the dendrobium officinale is simple and is high in efficiency, and large-scale production can be facilitated. The novel process include main procedures of petroleum ether degreasing, tank assembly dynamic countercurrent ethyl acetate extraction, sodium hydroxide alkalization, hydrochloric acid acidification treatment and the like. Compared with the traditional macroporous resin purification process, the novel process has the advantages that large quantities of organic solvents and time can be saved, and the novel process is high in specificity; the purity of the stilbene substances can reach 80%.

The invention belongs to the technical field of environmental chemistry, and particularly relates to a clay mineral loaded nanometer zero valent iron, and a preparation method and use thereof. According to the clay mineral loaded nanometer zero valent iron, and the preparation method and the use thereof, tobacco stems and walnut green seedcases are used for preparing plant extracts, high toxicityand expensive sodium borohydride is replaced as reducing agents, and the clay mineral loaded nanometer zero valent iron is prepared; at the same time, the fact that the clay mineral loaded nanometer zero valent iron can effectively remove residues of anabasin pesticides in water is found for the first time, and the degradation effect is better than that of clay mineral, nanometer zero valent ironand clay mineral loaded nanometer zero valent iron prepared by conventional methods; and degradation conditions of the anabasin pesticides on the clay minerals loaded nanometer zero valent iron are optimized. According to the clay mineral loaded nanometer zero valent iron, and the preparation method and the use thereof, preparation conditions and the degradation conditions of the clay mineral loaded nanometer zero valent iron are optimized, great significance to diversified utilization of agricultural production wastes, reduction of production costs and reduction of environmental pollution areprovided; and at the same time, the reaction process is simple, and good market prospects in remediation and treatment of anabasine pesticide pollution environments are provided.

The invention discloses a preparation method of an edible packaging film based on diatom polysaccharide. The preparation method specifically comprises the following steps: degreasing diatom powder, concretely adding a chloroform methanol mixed solution into the diatom powder, carrying out degreasing, suction filtration, and drying to obtain degreased diatom powder; preparing the diatom polysaccharide, concretely uniformly mixing the degreased diatom powder with water, then adding 8-chlorotheophylline, and carrying out ultrahigh-pressure extraction and suction filtration, wherein the obtained filtrate is the water extracted crude polysaccharide; and preparing the edible packaging film, concretely taking the following components in parts by weight: the diatom polysaccharide, glycerol, gelatin, tea polyphenol and water, dissolving the components to prepare a film liquid, carrying out degassing, then uniformly pouring the degassed film liquid into a mold, and carrying out drying for forming a film, so as to obtain the edible packaging film. The preparation method disclosed by the invention has the beneficial effects that the preparation method is simple and feasible, the time consumption is low, the energy consumption is low, the utilization rate of the raw materials can be improved, and the degradable pollution-free packaging film with good performance can be formed. The surface of the packaging film is smooth and compact, the film is easy to uncover, and the packaging film is edible, is easy for industrial scale production and has good application value and market potential.

The invention discloses a red-cedar root essential oil extraction device and a preparation technology thereof. The red-cedar root essential oil extraction device comprises a heating furnace, a dry distillation kettle, a condenser and a receiving bottle, wherein the dry distillation kettle is arranged in the heating furnace; a set of complete dry distillation system is formed by the condenser and the receiving bottle. Essential oil contained in a red-cedar root is extracted through regulating the heating temperature and detecting the relative molecular mass of a non-condensable gas, so that the efficiency is greatly improved in comparison with a traditional water vapor extraction method, the extraction rate is improved to 9.6% from 2% in the past, the extraction efficiency is 5 times that in the past, the essential oil extraction rate of the red-cedar root is greatly improved, red-cedar is reused and resource waste is avoided.

The invention discloses a method used for extracting sea-buckthorn active polypeptides with supersonic wave. The method comprises following steps: glucopyranose and galactopyranose are added into sea-buckthorn seeds, and primary crushing and superfine grinding are carried out so as to obtain sea-buckthorn ultra-fine powder; distilled water, cellulase, phytase, and tannase are added into the sea-buckthorn ultra-fine powder, hydrolysis, enzyme deactivation, and centrifugation are carried out, a precipitate is collected, and is dried; distilled water, alkali protease, neutral protease, and left lateral vitamin C are added into sea-buckthorn powder, ultrasonic-assisted extraction and enzyme deactivation are carried out, an obtained enzymatic hydrolysate is cooled, and is subjected to ultrafiltration so as to obtain a sea-buckthorn active polypeptide crude solution; the sea-buckthorn active polypeptide crude solution is introduced into a chromatographic column for elution with double distilled water, an obtained eluate is introduced into a macroporous resin column for elution with double distilled water and an ethanol solution successively, an obtained elution solution is dried so as toobtain the sea-buckthorn active polypeptides. The method is simple and practical; pretreatment time is short; the purity of the sea-buckthorn active polypeptides is high; extraction rate is high; andthe obtained sea-buckthorn active polypeptides possess antibacterial performance and water retention capacity.

The dynamic circulation staged continuous countercurrent extraction process is characterized by that it has several extraction units, the effective component contents in effective materials of all the extraction units and effective component contents in the solvents successively are decreased progressively, and its complete extraction process is continuously implemented by stages whose stage number is idential to the number of extraction units, and every unit can respectively independently make extraction operation. When the extraction process of some stage is completed, the unit whose effective component is completely extracted, it can make residue-removing and charging operations.

The invention provides a term extraction method and device based on a deep learning network and a storage medium. The method comprises the following steps of labeling a term on a target text; carryingout the word segmentation on the labeled target text to obtain a word segmentation text and extracting keywords; according to the keywords, training the pre-established RNN deep learning network to obtain the term prediction model, and obtaining the term prediction result outputted by the term prediction model; according to the term prediction results and term tagging corresponding to the targettext, training the pre-established CNN depth learning network to obtain the term extraction model, and obtaining the term extraction results outputted from the term extraction model. The method of theinvention integrates the RNN and CNN deep learning network to form a deeper deep learning network. According to the extracted keywords and the terminology labeling result of the target text, the method of the invention predicts and extracts the terminology of the target text, which can effectively improve the extraction speed of the terminology and realize the extraction of the Chinese terminology of the massive text.

The invention relates to a method for extracting effective component of traditional Chinese medicine, with dynamic overflow continuous reverse-flow method, wherein said method uses several extractors, while each extractor works independently and they use active overflow method, to transfer liquid continuously. Compared with traditional method, the invention improves extracting speed, reduce solvent consumption, reduce following energy consumption and improve efficiency. The invention can reduce extracting temperature, etc. And the invention comprise several pots, heater, condenser, tubes, pump and value which control the active overflow between pots, and the meter element controlling the balance of whole device.

The invention relates to a high-selectivity and hydrophilcity electrode for electrochemical lithium extraction and a preparation method thereof. The preparation method comprises: carrying out surface coating modification on an electrode active substance by adopting polydopamine; and by utilizing the effects of preferential aggregation and lithium ion transmission of the polydopamine, interception on foreign ions is implemented and the selectivity of the electrode active substance to lithium is improved. In the pulping process of an electrode adsorption material, a polar hydrophilic organic high-molecular compound containing hydroxyl is introduced for blending modification, so that the hydrophilicity of an adhesive PVDF is improved. In addition, inorganic salt pore-forming is combined with a drying mode of 'firstly low temperature and then high temperature', so that the electrode forms a'porous-microcrack' morphology, and the mass transfer effect of solution in an electrode plate is improved. The electrode preparation method disclosed by the invention has the characteristics of simplicity, feasibility, environmental friendliness, low cost and the like, and is easy for industrial production.

The invention provides a pedestrian real-time detection method in a complex environment based on deep learning. The pedestrian real-time detection method comprises the following steps: S1, establishing a detection model based on a YOLO algorithm; S2, selecting a plurality of pedestrian images in a complex environment in a color hot picture library, establishing a training data set and a test dataset, inputting the training data set into the detection model, and training the detection model; S3, inputting the test data set into the trained detection model, outputting detection results of pedestrian targets in an infrared thermal image and an RGB color image of the test data set, and screening the detection results through a non-maximum suppression method; and S4, comparing with a YOLOv3, YOLO-tiny detection algorithm, and verifying the detection precision and the detection speed.

The invention provides a quick extraction method, wherein, raw materials are extracted through microwave radiation treatment before the process of solvent extraction, so as to accelerate the extraction speed.

The invention belongs to the technical field of distillation extraction, and particularly relates to a distillation extraction system of wormwood essential oil, which comprises a distiller, a communicating pipe, a cooler and a separator, the distiller is used for distilling wormwood; the communicating pipe is used for conveying wormwood essential oil contained in the volatilized water vapor; and through the arrangement of a filter cylinder, the filter cylinder can block wormwood residues, the residues obtained after wormwood is crushed are prevented from falling to the base, scaling of the base is reduced, the labor intensity of workers is reduced, the heat transfer efficiency is improved, the wormwood distillation efficiency is improved, a driving motor is matched with the filter cylinder, on one hand, water is accelerated to immerse wormwood, so that the wormwood soaking speed is increased, and the breaking of wormwood cells is accelerated, on the other hand, in the process of distilling the wormwood, water flows in the machine body, so that the water vaporization speed is increased, the water vapor is accelerated to drive essential oil in water to be separated, and the extraction speed of the distiller is increased.

The present invention discloses a method for extracting saponins effective component from Chinese medicinal material notoginseng. Said method adopts the following steps: firstly, pulverizing notoginseng root to obtain notoginseng powder whose grain size is 20-80 meshes, utilizing four extraction tanks of A,B,C and D, respectively adding 10g of notoginseng powder into every extraction tank, then adding 35%-90% ethyl alcohol solution into said four extraction tanks respectively, heating to 35-80deg.C and extracting for 20-60 min., successively making extraction of D,C.B and A to make effective component contents in extracts of four extraction tanks be successively decreased, then combining extracts. Said method can greatly raise extraction efficiency of notoginseng saponins effective component.

The invention relates to an artificial intelligence technology, in particular to a medical image classification method and device, computer equipment and a storage medium. The method comprises the following steps: slicing a medical image to obtain an image slice sequence; extracting image features of a target object in the image slices from the image slices in the image slice sequence; sequentially determining the continuous probability of the target object in each image slice according to the image features extracted from each image slice; determining the connectivity of the target object in the image slice sequence based on the cumulative sum of the difference values between the continuous probabilities corresponding to the adjacent image slices in the image slice sequence and the total slice amount of the image slices in the image slice sequence; and judging the classification category to which the medical image belongs according to the connectivity rate. By adopting the method, the influence on the accuracy of medical image classification due to a small target object can be avoided.

The invention belongs to the field of natural organic chemistry, and relates to a method for purifying capsicine in hot pepper by using microwave countercurrent extraction-membrane filtration technologies in a combined way. The method is characterized in that: microwave countercurrent extraction and membrane filtration are performed in sequence, so that the extraction time is shortened, the extraction speed is increased, the extraction rate is increased by dozens of times, and the extraction period is shortened greatly. Meanwhile, the content of active ingredients is increased, medicinal materials and energy consumption are saved, and the defects of relatively low conventional extraction rate and low extraction purity are overcome. Furthermore, the content of active ingredients is increased, the extraction purity is high, and a final capsicine product of which the content is over 98 percent can be obtained. Due to the adoption of the method for using microwave countercurrent extraction-membrane filtration technologies in a combined way, an organic solvent is extracted completely, the membrane filtration technology is safe and reliable, the microwave technology has a high extraction speed, pollution is avoided, environment-friendly engineering is adopted, a production line has a simple constitution, a processing process is simple and contributes to saving medicinal materials and lowering energy consumption, and the defects of relatively low conventional extraction rate and low extraction purity are overcome.

The invention discloses a hydraulic engineering crack extraction method and specifically relates to the field of crack extraction. An image processing module is included. An input end of the image processing module is provided with an image acquisition module and an imaging module. An input end of the imaging module is provided with an internal detection module, a connecting end of the image processing module is provided with a crack extraction module, a model establishment module and a graph storage module, and the image processing module comprises a crack marking unit, an obstacle elimination unit, a brightness adjustment unit and an image synthesis unit. According to the invention, engineering surface cracks are obtained through the image acquisition module, engineering internal cracksare obtained through the internal detection module and the imaging module, then crack images are subjected to a series of processing through the image processing module such that crack images inside and outside the hydraulic engineering are obtained, the crack images inside and on the surface of the engineering can be obtained simultaneously, and the crack extraction is more comprehensive comparedwith the prior art.

The invention belongs to the technical field of environment chemicals and in particular relates to clay mineral supported nano zero-valent iron as well as a preparation method and application thereof.According to the preparation method, tobacco stems and green walnut peel are adopted to prepare plant extracts to replace sodium borohydride as a reducing agent which is large in toxicity and high inprice in a common preparation method, and thus the clay mineral supported nano zero-valent iron is prepared; meanwhile, the effect that the clay mineral supported nano zero-valent iron is capable ofefficiently removing residues of anabasine pesticides in a water body is found for a first time, and the clay mineral supported nano zero-valent iron has a degradation effect prior to those of a claymineral, nano zero-valent iron and clay mineral supported nano zero-valent iron which is prepared by using a common method; degradation conditions of the clay mineral supported nano zero-valent iron upon the anabasine pesticides are optimized; preparation conditions and degradation conditions of the clay mineral supported nano zero-valent iron are optimized, and great significances are achieved for diversely utilizing agricultural production wastes, lowering the production cost and reducing environment pollution; and meanwhile, the clay mineral supported nano zero-valent iron is simple in reaction process and has very good market prospects in repairing treatment on anabasine pesticide polluted environments.

The invention discloses an atmospheric turbulence optical channel shared random bit extraction system based on space diversity time-sharing gating. According to the invention, the time-sharing gatingis used to randomly change a spatial diversity sub-channel through which a laser signal emitted by the laser reaches a photoelectric detector, so that random switching measurement of different sub-channels of spatial diversity is realized; by performing random switching measurement on different sub-channels of spatial diversity, it can be ensured that received optical signal sampling values obtained by continuous two-time sampling measurement are approximately statistically independent when received optical signal sampling operation is performed under the condition of a sampling time intervalsmaller than the fading autocorrelation time length of atmospheric turbulence optical signals. Therefore, when the random bit extraction rate is improved by reducing the sampling time interval of a computer acquisition system, the damage to the randomness of the extracted bit sequence can be reduced by using the method and the device.