38results about How to "Applicable extraction" patented technology

The invention relates to a cyanobacteria biomass spatial-temporal change monitoring and visualization method based on a remote sensing image. The method comprises the following steps: (1) pre-processing the remote sensing image of a research region, and constructing a normalized difference cyanobacteria bloom index (NDI-CB); (2) optimizing characteristics of the remote sensing image by using a characteristic optimization model based on VPRS (Variable Precision Rough Set)-GID (Grey Incidence Decision), and obtaining an optimized multi-characteristic space; (3) establishing a double-weighted SVM (Support Vector Machine) classification model based on a wavelet kernel according to the multi-characteristic space, performing extraction identification and change detection on the spatial distribution information of cyanobacterial bloom, and performing comprehensive verification and precision analysis by combining field observation data; and (4) performing overlapping display on the processed remote sensing image, GIS (Geographic Information System) vector data and the field observation data, thereby realizing the analog simulation of spatial-temporal change processes and rules of erupting the cyanobacterial bloom. Compared with the prior art, the cyanobacteria biomass spatial-temporal change monitoring and visualization method based on the remote sensing image has advantages of high cyanobacteria identifying precision and reliability, and the like, and is beneficial to analyzing and judging of causes and distribution changes of the cyanobacterial bloom.

The invention discloses a method for extracting genomic DNA from mature and old tung oil tree leaves, relating to the separation and extraction technology of genomic DNA from plants in the molecular biology experiments. The method mainly comprises the steps of leaf tissue sample pretreatment, cell disruption, non-DNA component extraction, DNA precipitation, ion removal and tissue sample cyclic extraction. The method has the following advantages and positive effects: polyphenols, polysaccharides and other secondary metabolites in which the leaves are rich can be effectively removed by using washing liquid to pretreat the tissue samples of the mature and old tung oil tree leaves once; the step of tissue sample cyclic extraction is absent in the traditional methods for extracting genomic DNA; one tissue sample can undergo genomic DNA extraction four times, thus obviously increasing the yield of the genomic DNA; and the genomic DNA with high quality and high yield can be extracted from the mature and old leaves stored at low temperature for a long time by the method. The method is suitable for extraction of genomic DNA from mature and old tung oil tree leaves.

The invention relates to a full wave extraction method for differential through silicon via distribution parameters. The method comprises the steps of determining a differential through silicon via structure; analyzing the distribution resistance, distribution inductance, distribution capacitance and distribution conductance of each part of the differential through silicon via; establishing an odd mode equivalent circuit and an even mode equivalent circuit of the differential through silicon via; establishing a differential through silicon via three-dimensional simulation model in HFSS; obtaining a Y-parameter matrix of the differential through silicon via and calculating an odd mode transmission matrix of the differential through silicon via and an even mode transmission matrix of the differential through silicon via; calculating the odd mode characteristic impedance Z0o and the odd mode propagation constant betao of the differential through silicon via; calculating the even mode characteristic impedance Z0e and the even mode propagation constant betae of the differential through silicon via; acquiring the odd mode loop resistance Ro, the even mode loop resistance Re, the loop self-inductance L and the loop mutual-inductance Lm of the differential through silicon via; establishing a three-dimensional simulation model of the differential through silicon via in Q3D and acquiring Cox, CSig, GSig, CSim and GSim.

The invention discloses an extraction method of a genomic DNA of a plant leaf of a traditional Chinese medicine and relates to a separation and extraction technology of genomic DNAs of plants in molecular biology experiments. The method mainly comprises the following steps of: pre-treating a tissue sample; crushing cells; eluting impurities; separating out DNAs; and removing ions. The method disclosed by the invention has the advantages and positive effects that (1) cell nucleuses are released from cell walls by means of a cutting method, then secondary metabolites are eluted to obtain pure cell nucleuses, and finally, the genomic DNA is extracted from the cell nucleuses; (2) liquid nitrogen cannot be used for extracting the cell nucleuses by means of the cutting method; (3) impurities in the cytoplasm are repeatedly eluted, so that pure cell nucleuses can be obtained effectively; (4) samples can be obtained from samples which are stored at a low temperature for a long time and fresh leaves; and (5) the method is suitable for extracting DNAs of all plant leaves of traditional Chinese medicines. The extraction method is suitable for extracting the genomic DNA of the plant leaf of the traditional Chinese medicine.

The invention relates to a wind power ultra-short-term power prediction method fusing time sequence characteristics and statistical characteristics. The invention aims to provide a wind power ultra-short-term power prediction method fusing time sequence characteristics and statistical characteristics. According to the technical scheme, the wind power ultra-short-term power prediction method fusing the time sequence characteristics and the statistical characteristics is characterized by comprising the steps: obtaining and correcting NWP data; inputting the wind speed and wind direction in the corrected NWP data into a CNN network model to extract statistical characteristics; acquiring historical power data, and cleaning the historical power data; inputting the cleaned historical power data into a GRU network model to extract time sequence characteristics; and fusing the statistical characteristics of the wind speed and the wind direction and the time sequence characteristics of the power data, inputting the fused characteristics into the trained ultra-short-term wind power prediction model, and outputting a wind power prediction value. The method is suitable for the field of wind power generation power prediction.

The invention discloses a method for extracting an effective component from an ethanol part of acid litchi. The method comprises the following steps: baking and crushing acid litchi, soaking in 95% ethanol for 0.2-0.4 hour, extracting for 80-100 seconds with microwave power of 400-600W, and concentrating to obtain an extract; recovering the ethanol, and dissolving the extract with n-butyl alcohol, filtering, concentrating at reduced pressure to prepare a clear extract, namely the total active component of acid litchi, and recovering the n-butyl alcohol, wherein the acid litchi is acid litchi kernels, acid litchi leaves, acid litchi stems, acid litchi barks and acid litchi fruit peels. The method has the characteristics of simple and effective extraction and purification and high extraction rate; the extract is definite in component and high in purity, and can be used for preparing preparations which have better curative effect and are convenient to take; a solvent for extraction is absolute ethyl alcohol, the step of configuring concentration is cancelled, the time is saved, and the recovered solvent can be used in other aspects. The method is economic, energy-saving and environment-friendly, is advantageous to production performance, and has good economical benefit, social benefit and ecological benefit.

The invention discloses a squeezing and filtering mechanism for raspberry wine brewing. The squeezing and filtering mechanism comprises an overturning cylinder, an eccentric cylinder and a liquid outlet cylinder. An overturning shaft is arranged on the outer arc surface of the overturning cylinder, a rotating shaft is arranged in the center of the end face of the overturning cylinder, the rotating shaft is connected with an end face plate shared by the eccentric cylinder and the liquid outlet cylinder, conical convex points are laid on a large-hole grating cylinder of the eccentric cylinder, and the liquid outlet cylinder is a small-hole filter screen cylinder; The end face of the liquid outlet cylinder is provided with a liquid outlet pipe, the eccentric cylinder is provided with a slag discharge port, and the overturning cylinder is provided with an annular sealing plug and a material hopper. A method for extracting clarified raspberry fruit juice is achieved. The method comprises the steps of inspection, feeding, eccentric squeezing, juice extraction, residue discharge, cleaning and the like. Through the structure that the outer cylinder is overturned, the inner cylinder is rotated and the middle cylinder is eccentrically matched, sufficient squeezing and filtering are achieved, and the squeezing and filtering mechanism is suitable for squeezing various kinds of fruit juice.

The invention discloses a magnetic nanoparticle and a preparation method and application thereof, and the magnetic nanoparticle comprises a core body which is composed of superparamagnetic ferroferric oxide; the shell covers the surface of the core body, and the shell is composed of a repeating unit as shown in a formula I which is described in the specification. The magnetic nanoparticles have excellent chemical and thermal stability, and are strong in magnetism, good in dispersity in water, large in specific surface area, strong in adsorption capacity, high in adsorption speed and reusable.

The invention discloses an extraction method of anthocyanins, and relates to the technical field of food processing and extraction. The problems that an existing anthocyanins extraction method is low in extraction efficiency, complex in operation and high in cost are solved. The method comprises the steps that 1. wild blueberries are broken and then subjected to solid-liquid separation, the liquid is cooled, and an extracting solution A is obtained; 2, the separated solid is broken and subjected to solid-liquid separation, the liquid is cooled, and an extracting solution B is obtained; 3, the A and the B are mixed, then ethanol is added, reflux extraction is conducted, vacuum concentration is conducted, freeze drying and pulvering are conducted, and blueberry powder is obtained; 4, wild lonicera edulis is subjected to the above-mentioned operation, and lonicera edulis powder is obtained; 5, the blueberry powder and the lonicera edulis powder are mixed. The wild blueberries and the wild lonicera edulis are adopted, flavonoid substances contained in the wild blueberries and the wild lonicera edulis are different, a visual nervous system can be effectively repaired, antioxidation is achieved, free radicals in the body are removed, the body immunity is improved, a good auxiliary improving function is achieved for gynecological diseases, metabolism improvement is promoted, and the sleep quality is improved. The method is suitable for extracting the anthocyanins.

The invention discloses a feature extraction method based on an image neighborhood structure tensor equation. The method comprises the following steps: 1) determining a lower boundary of a two-dimensional code; 2) performing region extraction by use of a region growth method; 3) computing a feature value based on the structure tensor; and 4) fitting other three obtained discrete boundaries by use of the least square method to obtain a final standard datamatix two-dimensional code region. The neighborhood boundary of the two-dimensional code is determined through the region growth method and the feature computation of the structure tensor by use of the method disclosed by the invention; compared with the method for determining each boundary region, the method disclosed by the invention is simpler, and the determined boundary is more accurate; and the method is suitable for the extraction of the two-dimensional code region.

A rolling bearing overlapped ultrasonic echo energy extraction method based on a Gaussian model comprises the following steps: firstly, acquiring continuous pulse ultrasonic echo signals, and extracting monopulse ultrasonic echos; establishing a double ultrasonic echo Gaussian model according to the monopulse ultrasonic echos, and calculating a parameterized ultrasonic echo energy expression; constructing a fitness function of a particle swarm algorithm according to a least square method to obtain a finally estimated parameter vector; estimating an initial value of the particle swarm algorithm through a time domain waveform and wavelet transform according to a monopulse ultrasonic echo waveform and a double ultrasonic echo Gaussian model; inputting the initial value into the particle swarm algorithm, and controlling the particle swarm algorithm to continuously iterate until convergence according to the fitness function; substituting the finally estimated amplitude and bandwidth into the parameterized ultrasonic echo energy formula to obtain energy of two echoes; and repeatedly extracting the energy of each pulse ultrasonic echo, and calculating an ultrasonic echo energy coefficient to obtain a UEER curve; The method does not depend on echo interface separation, and can adaptively extract echo energy.

The invention provides a method for preparing high-purity iron oxide with converter dedusting ash using a superconduction high gradient magnetic separation (HGMS) technology. According to the method, the HGMS technology is used for separating the converter dedusting ash so that the iron oxide can be extracted, then the iron oxide is roasted to prepare high-purity iron oxide red, and cyclic utilization of the converter dedusting ash at the outside of a steel mill can be realized; and moreover, the additional value of the iron oxide red is high, large-scale and high-additional-value resource utilization of waste is achieved, iron elements can be enriched to 65% or above, the number reaches 93% or above when the iron elements are converted into Fe2O3, and the recovery rate of the iron elements reaches 95% or above. The method for preparing the high-purity iron oxide with the converter dedusting ash using the superconduction HGMS technology has ultrahigh separation and extraction capacity and ultralow energy consumption (the energy consumption accounts for 1/10-1/4 that of a conventional magnetic separation method), the effect is good and energy can be saved obviously; and the method is particularly suitable for enrichment, separation and extraction of the iron elements in iron-containing solid powder such as the converter dedusting ash.

The invention belongs to the technical field of plant leaf oligosaccharide extraction and application, and discloses an extraction method of aronia melanocarpa leaf oligosaccharide and application of the aronia melanocarpa leaf oligosaccharide in preparation of a bacteriostatic preservative film. Pectinase powder, acid protease powder and cellulase powder are reasonably proportioned, and oligosaccharide with molecular weight of 8000 Da or less in aronia melanocarpa leaves is extracted by microwaves. The extraction method is fast and environment-friendly, and the molecular weights of the obtained oligosaccharides are similar. The extracted aronia melanocarpa leaf oligosaccharide is mixed with a biodegradable high polymer material, the mixture is applied to preparation of the degradable antibacterial preservative film, waste utilization of the aronia melanocarpa leaves is achieved, and the prepared preservative film can inhibit growth of microorganisms and prolong the shelf life of food.

The invention belongs to the technical field of water conveying equipment, and particularly relates to a seesaw type iron cylinder high-lift air compression water conveying device. The water conveyingdevice comprises a floating box, a supporting rod and a seesaw rod, a first iron cylinder and a second iron cylinder are fixed to the two ends of the seesaw rod, a first water inlet and a second water inlet are formed in the bottoms of the first iron cylinder and the second iron cylinder correspondingly, a poking rod which is arranged vertically downwards is arranged in the middle of the seesaw rod, a spring machine and a valve are further arranged on the top surface of the floating box, the swing of the seesaw rod controls the rotation of the shifting rod, the rotation of the poking rod pokes the swing of the spring machine, the swing of the spring machine controls the switch state of the valve, and the switch state of the valve controls air inflation and deflation and water inlet and drainage of the iron cylinders. The water conveying device has the advantages that the structure is simple, high-lift water conveying is realized, and in addition, the device can be automatically adjusted along with rise and fall of the water level.

The invention discloses a method for extracting metallic iron from zinc kiln slag. The method comprises the following steps of respectively taking the zinc kiln slag and a graphite rod as a negative electrode and a positive electrode, inserting the negative electrode and the positive electrode into a molten salt system formed by mixing and melting sodium chloride and potassium chloride in a protective gas atmosphere, carrying out molten salt constant cell voltage electrolysis reaction, and finally cleaning and drying the negative electrode to obtain the metal iron. The metal iron is obtained. The method is easy to operate, simple in process, high in metal iron recovery rate, low in energy consumption, small in pollutant emission and suitable for industrial production, and solves the problems of low extraction rate and high extraction difficulty caused by a complex zinc kiln slag system in a traditional process; and the method is suitable for extracting the metal iron from the zinc kiln slag.

The invention belongs to the technical field of biology, and particularly relates to a simple and fast plant genome DNA extraction method. On the basis of a CTAB extraction method, an extraction solution formula is improved; a sample grinding method is changed; the operation steps are optimized; the plant genome DNA can be fast extracted at high flux; instruments such as a grinding instrument arenot needed; the liquid nitrogen consumption is extremely low; reagents with higher danger such as phenol are not needed.

The invention relates to an on-line oil electromagnetic detection method and device capable of simultaneously acquiring temperature information, and is used for extracting temperature information in evaluation, monitoring and detection of various parameters of oil abrasive particles (11) of an in-service pipeline (1) of an aircraft engine and the like. The device comprises a flexible belt (2) annularly wound on an oil pipeline and array type eddy current detection sensors (21) arranged on the flexible belt, and is characterized in that the array type eddy current detection sensors (21) are arranged to be identical pairwise overlapped coils in pairs, and differential type eddy current detection sensor coils (211 and 212) in array distribution are formed. The temperature information of the oil can be detected without adding a temperature sensor in the oil detection of the in-service pipeline.