44results about How to "Not easy to extract" patented technology

A method for increasing the permeability of an inert gas and extracting gas under the coupling action between temperature and pressure, belongs to a method for extracting the gas. A permeability increasing hole is formed in the middle of a workface coal bed; gas extraction holes are formed on vertexes of an equilateral triangle with the permeability increasing hole as a center; after the gas extraction holes are sealed, the gas is extracted; the inert gas under the coupling action between temperature and pressure is injected into the permeability increasing hole one by one; under the coupling action of temperature and pressure of the nitrogen, a small-size clearance of a coal body is pressed by the inert gas to be opened, so that an original crack in the coal body is stretched, the stretched crack further extends and no protrusion by induction occurs; 90 percent of adsorption gas in the coal body absorbs energy and the separating speed of the gas from the coal body is increased, so that gas which is difficult to desorb in the coal body is converted into free gas which is convenient to quickly extract in a large flow; and a permeability increasing medium is gas, and the gas subjected to permeability increase can be exhausted from a crack channel without blocking the gas flowing channel, so that the conditions for the extraction of the gas is provided. The method has the advantages of simplicity in operation, favorable effect, high extraction efficiency of the gas and applicability.

The invention discloses a cascaded arc fault detection method and a special device for the cascaded arc fault detection method and relates to electrical fault detection devices. The cascaded arc fault detection method is based on a voltage waveform of an electric appliance, the voltage across the two ends of the electric appliance is used as a detection object, a difference mean value method is adopted to analyze the waveform of the voltage across the two ends of the electric appliance, and signals are subjected to wavelet noise reduction; a difference mean value obtained after processing is used as a characteristic quantity of an arc, and whether an arc fault happens is judged according to the characteristic quantity. The special device for the cascaded arc fault detection method comprises a cascaded arc fault simulation test unit and a cascaded arc fault detection unit. The cascaded arc fault detection method and the special device for the cascaded arc fault detection method overcome the defects that in the prior art, by the adoption of the arc fault detection method of extracting sudden change characteristics of current signals, the reliability is not high, and a misjudgment is easily made.

The invention discloses a battery connector quality detecting method based on machine vision. A connector template data set is built; images of detected connectors are acquired; acquired original images of the battery connectors are cut to obtain images of rectangular window areas; the cut images are aslant corrected to obtain corrected images; the images are reconstructed until the images finishpretreatment; after the images are pretreated, positions of the connectors, connector FPC substrate copper exposure, connector central area defects, connector hardware part defects and connector plastic part detects are respectively detected by adopting independent detecting methods; detecting templates are updated in real time by adopting dynamic template update mechanisms; a coordinate system isbuilt based on the corrected images; the defects are classified, positioned and marked; detecting results are output; common quality problems of inclination/deflection, FPC plate copper exposure, hardware defects, plastic defects and central area defects of the connectors can be detected; and excellent instantaneity and higher detecting rate are achieved.

The invention discloses a cell culture bottle. A clamping edge of a front panel of the cell culture bottle can be clamped and positioned between a clamping groove and a flanged edge of a back panel of another cell culture bottle; and thus, a plurality of culture bottles can be stored and moved in a piling mode, thereby saving the space of an incubator and facilitating the management. The joint of the cell culture bottle comprises two triangular plates and a trapezoidal plate, and the included angle formed by the trapezoidal plate and the front panel is 130 degrees; the lower side panel, bottom panel and upper side panel tilt towards the inner side of the bottle body, the bottleneck tilts towards the back panel, and a certain inclination angle is set; and when the cell culture bottle is arranged flatly, a pipette or cell scraper can touch all positions of the culture bottom surface, thereby facilitating the collection of cells, and preventing the culture bottle from generating dead area where cells can not be easily extracted. The invention solves the following problems: the plurality of cell culture bottles can not be easily managed and stored, the cell culture bottle generally has difficulty in cell extraction, and dead extraction areas can be easily generated.

The invention relates to a technological method for efficiently extracting ginkgo flavone from gingkoes by an ultramicro-pulverization auxiliary biological enzyme method. The technological method comprises the steps that (1) folium ginkgoes are subjected to ultramicro-pulverization to be 500-3000 meshes; (2) water with the weight being three to five times that of materials is added, and 0.01%-0.2% of compound enzymes are added to conduct enzymatic extraction for 2-12 h; (3) the pH value is regulated to be 5.5-6.5, a certain amount of absolute ethyl alcohol and glucosaccharase are added to react for 12-24 h; (4) the extracting solution is concentrated to recycle ethanol; (5) the concentrated solution is subjected to macroporous resin absorption, and ethanol elution is conducted; (6) the elution solution is decompressed and condensed through the recycled ethanol and then is subjected to spray drying, and folium ginkgo flavone compound products are obtained. The technological method is a novel ginkgo flavones extracting technology, the usage amount of solvents in the extracting process can be reduced, the flavone extraction efficiency is improved, and the content of water-soluble ginkgo flavones is improved.

The invention relates to a method for grinding and protecting cephalopod otolith. The method comprises the steps of extraction, soaking, placing, resin embedding, cutting, fixing on a glass slide, abrading, polishing, preservation and the like. The method can solve the problems that the cephalopod otolith is small and not easily ground, the otolith is easily broken in the grinding process and thetextures are easy to fade after polishing; and the otolith textures can be kept for long time.

A preparation of fresh gastrodia tuber fermented wine, including washing gastrodia tuber, immersing with SO2 aqueous solution, grinding paste, adjusting acidity in pH value range of 3.0-6.0, sugar degree between 22%-38%, carrying out enzymolysis with pectic enzyme of 40-65ppm and protease of 20-50ppm, adding yeast, fermenting of 22 days with temperature controlled in 18-22 DEG C, separating wine stone, storing naturally, gastrodia tuber fermented wine is obtained with alcohol strength between 8%(V/V) and 18%(V/V) after aging with ultrasonics.

The invention discloses a chenopodium quod fermentation object and application thereof in cosmetics. The chenopodium quod fermentation object disclosed by the invention is manufactured by taking shelled chenopodium quod particles as a raw material and taking lactic acid bacteria and/ or saccharomycetes as a fermentation culture through a biological fermentation method. A preparation process is that smashed chenopodium quod powders are evenly mixed with water, after a series of working procedures, including liquification, saccharification and the like, sealing is carried out after the culture is added, and a fermentation product is subjected to centrifugal filtration to obtain chenopodium quod fermentation liquor. The chenopodium quod fermentation object disclosed by the invention can effectively resist injury to skin cells by free radicals, the melanin generation of melanin cells is reduced, and the chenopodium quod fermentation object performs functions of regulating skin hyperpigmentation and brightening skin. A series of product obtained in a way that chenopodium quod fermentation object is compounded with other active ingredients, including oligopeptides and collagen, has the obvious efficacy on whitening and brightening the skin.

The invention provides a user identity recognition method, electronic equipment and a medium. The method comprises the steps that: a video stream sent by a photographing device is received, and human body recognition is carried out on an image in the video stream; when it is determined that a human body is recognized, human body feature data are extracted and compared with human body feature data in a registration database, and when it is determined that a corresponding registered user is recognized, a response corresponding to the detected registered user is started; when it is determined that the corresponding registered user is not recognized, the human body in the image is tracked according to the received video stream, and other identity recognition information corresponding to the human body is collected; according to the other identity recognition information, when it is determined that the corresponding registered user is recognized, the human body feature data are stored in the registration database. According to the method, by updating the registration database, various conditions of the human body can be covered, the accuracy rate of human body recognition is increased, the effect of human body recognition is optimized, recognition becomes more and more accurate, and the problem that human body recognition is difficult in various scenes is solved.

The invention discloses a traditional Chinese medicine fermented health-care food beneficial to sleep. The traditional Chinese medicine fermented health-care food beneficial to sleep is prepared fromthe following components in parts by weight of 2.72-4.08 parts of spina date seeds, 2.72-4.08 parts of lily bulbs, 2.72-4.08 parts of poria cocos, 4.08-6.12 parts of wheat, 1.36-2.04 parts of Chinesejujubes, 1.28-1.92 parts of licorice roots and 2.72-4.08 parts of rhizoma polygonati through extraction, fermentation and concentration shaping. According to the formula, medicinal and edible traditional Chinese medicine raw materials are used, the dosage of the traditional Chinese medicine fermented health-care food is smaller than 1/3 of the conventional dosage lower limit, the product is prepared through combination of optimized process extraction and probiotic fermentation technologies, and according to regulations on the sleep improving function evaluation procedure of health-care foods,the sleep improving function test result is positive, which illustrates that the product has the health-care function of improving sleep within the recommended edible dosage; and toxicological tests also show that the product is safe and non-toxic and has a wide application prospect.

The invention discloses a DeepLabv3plus-IRCNet image semantic segmentation algorithm based on a coding and decoding structure, and relates to the technical field of image semantic segmentation. The method is based on DeepLabv3plus, and comprises the following steps: extracting picture features by a deep convolutional neural network formed by introducing depth separable convolution inverted residual modules in series, and introducing a feature map segmentation module under 1/16 resolution; amplifying each segmentation feature map to the size before segmentation; extracting features in a parameter sharing mode; splicing the corresponding positions of each output feature map and then performing fusion with the feature map amplified to the same size in the decoding stage, so that the extraction capability of the model for features of a small target object is improved, and the problem of small target loss caused by gradual reduction of the resolution of the feature map in the down-samplingprocess of the image is effectively solved.

The invention relates to a cyclic tumor cell detection method. The method comprises that a human body fluid sample is collected and fixed by formaldehyde to enhance the permeability of a cell membrane, cells are added to groups of PCR multiple combined tubes, each tube is added with a reverse transcription primer with ID1, after reverse transcription into cDNA molecules, the cells are collected and added into another group of PCB multiple combined tubes, each tube is added with a 3' end extension prime which carries ID2 and includes a 3' end capable of specifically recognizing cDNA molecules,extension reaction is carried out after sequential complement, the cells are collected and cracked, and the PCR prime is used to pre-amplify an extension product. The sequence is measured in high flux, and the ID1:ID2 combination manner is analyzed. The detection method has the advantages that and PCR amplification are carried out on different markers, the cyclic tumor cells and cyclic tumor cellswith EMT can be accurately identified, other technologies can be combined for use, and the extremely few cyclic tumor cells and other non-body-fluid rare cells in the body fluid sample can be detected to largest extent.

The invention discloses a line selection method and system for a low-current grounding fault. Whether electric quantity changing information features of a fault line and a non-fault line exceed a preset value is determined; if so, a fault line is selected; and if not, fault confidence levels of all non-fault lines are calculated and ranking is carried out, tripping is carried out successively according to a descending order of the fault confidence levels until a fault line is selected. Confidence levels of multiple lines can be displayed simultaneously and the fault line is selected according to the descending order of the fault confidence levels, so that power failures of the non-fault lines are reduced and power supply reliability of the power system is improved.

The invention relates to a method for reducing the content of protein in soybean dregs and preparing soybean peptide. The method comprises the following six steps: firstly, drying, crushing and sieving soybean dregs, adding reverse osmosis water, and uniformly mixing, so as to obtain soybean dietary fiber mixed liquor; secondly, sequentially performing ultrasonic treatment and microwave treatmenton the soybean dietary fiber mixed liquor obtained in the first step; thirdly, adjusting the pH value of the mixed liquor obtained in the second step, adding alkaline protease, flavourzyme and cellulase, and carrying out a reaction at certain reaction temperature, so as to obtain enzymolysis mixed liquor; fourthly, performing enzyme deactivation treatment on the enzymolysis mixed liquor; fifthly,performing centrifugal separation on the mixed liquor subjected to enzyme deactivation in the fourth step, so as to obtain supernatant and residues; sixthly, performing spray drying on the supernatant. The method is used for reducing the content of protein in soybean dregs and preparing soybean peptide.

The invention is applicable to the technical field of automatic instrument control, and particularly relates to a data file storage method, a data file sharing method and terminal equipment. The datafile storage method comprises the following steps: acquiring original data of a data source and configuration information corresponding to the data source; generating a corresponding data file according to the original data of the data source and the corresponding configuration information; wherein the configuration information is located at a preset position in the data file; storing the data files. According to the data file storage method, data storage can be achieved, data collection can be automatically conducted according to the configuration information after the configuration information is configured once, a single data file contains both the configuration information and the data information, the collection and storage functions are rapid. The method is suitable for data collection, storage and forwarding and continuous fault data analysis of a small industrial system.

Disclosed is an in-tank tube with superior pressure resistance performance. A monolayer structure automobile fuel in-tank tube (1) is disposed within a fuel tank (2), and comprises a configuration of absorbing the displacement of the fuel tank (2) and the oscillations of a fuel pump (5). The automobile fuel in-tank tube (1) is formed in a monolayer structure from a resin material, the primary constituent thereof being an aliphatic polyamide resin, said in-tank tube (1) further comprising a pressure-resistant characteristic (X) described hereinafter: (X) The pressure at the time the in-tank tube breaks or comes apart from test pipes, i.e., the breakage pressure, is greater than or equal to 2.8MPa, when the in-tank tube, after immersion in testing fluid [Fuel C: Methanol = 85:15 (based on volume)] for 168 hours at 80 degrees C, is then filled with silicon oil as a pressurizing medium, and a pressure resistance test is carried out at room temperature with both ends of the in-tank tube blocked with the test pipes, at a pressurization speed of 1.0MPa/min.

The invention discloses a method for determining water quality phenolic compounds, and relates to the field of water quality detection. The method comprises the following steps of: step 1, collectinga sufficient amount of water sample by a glass bottle; step 2, immediately adding a reducing agent and an appropriate amount of hydrochloric acid to adjust the pH<2, after the water sample is collected; step 3, pouring the collected water sample into a separatory funnel; step 4, extracting target compounds to obtain an organic phase extract, and dehydrating the organic phase extracted with anhydrous sodium sulfate; step 6. concentrating and performing constant volume on the organic phase extract, and detecting by a machine to obtain a sample spectrum; step 7, comparing the sample spectrum witha standard spectrum, finding out the peak position of each target compound, and calculating a rho standard in combination with a calibration curve; and step 8, calculating the concentration rho i ofthe target compound in the water sample according to the formula rho i = rho standard x V1 x 1000/V2. The probability of oxidation of the phenolic compounds is effectively reduced, and the detection accuracy is improved since the water sample is added with the reducing agent in the pretreatment.

The invention relates to a method for extracting and separating agapanthussaponin A, which comprises the following steps of: crushing the underground part of broadleaf liriope, and adding to a supercritical extraction kettle for supercritical CO2 extraction, removing grease substances, and discharging raw material residues; adding a 50-80% ethanol solution for microwave extraction; concentrating an extracting solution to obtain an extract; after dispersion by adding right amount of water, adding water-saturated n-butanol for extracting for 2-3 times; combining extracts and adding acetone precipitation, filtering, and concentrating and drying a filtrate to obtain a crude product; and separating and extracting the crude product by using high-speed countercurrent chromatography to obtain the agapanthussaponin A. The method has the advantages of large amount of preparation, low sample loss, short production cycle, high efficiency and less pollution, and is suitable for industrial production.

The invention discloses a method and device for filling anti-counterfeiting information, computer equipment and a storage medium. The method comprises the steps: enabling the anti-counterfeiting information to generate a QR code according to a preset QR code rule; obtaining an array corresponding to the QR code, wherein the array is formed by arranging a plurality of numbers; hiding the numbers ina preset picture in sequence according to a preset rule, wherein the preset picture is a picture needing to be filled with the anti-counterfeiting information; and displaying a preset picture carrying the anti-counterfeiting information. The QR code is generated through anti-counterfeiting information, and the numbers corresponding to the QR code are hidden in the preset picture according to thearrangement sequence, thus realizing hidden protection of the anti-counterfeiting information. Compared with an existing watermark anti-counterfeiting technology, the scheme has the advantages that the anti-counterfeiting information can be hidden in the preset picture and is not easy to perceive, and ownership of the preset picture can be protected to the maximum extent, and the anti-counterfeiting information is not easy to counterfeit.

The invention discloses a rain-imprint-resistant elastic coating and a preparation method thereof, relates to the technical field of petrochemical elastic coatings, and solves the problem that brightspots are easily formed on the prior elastic coating. The composition consists of the following raw materials in parts by weight: 15-20 parts of water, 30-40 parts of an elastic emulsion, 0.3-0.8 partof a film-forming auxiliary agent, 0.1-0.3 part of a wetting agent, 0.1-0.3 part of a pH regulator, 0.3-0.5 part of a defoaming agent, 0.5-1 part of a dispersant, 1-1.5 parts of an anti-freezing agent, 0.1-0.3 part of an antiseptic bactericidal agent, 35-45 parts of pigment and filler, and 0.8-1.5 parts of a thickening agent. The preparation method of the rain-imprint-resistant elastic coating comprises the following steps: (1) carrying out weighing according to the weight; (2) adding a part of the water in the step (1) into a material barrel of a high-speed dispersion machine for stirring, sequentially adding the wetting agent, the dispersing agent, the defoaming agent, the pH regulator, the antiseptic agent and the pigment and filler, carrying out uniform mixing, and then grinding the obtained slurry to 60-micron fineness; and (3) adding the remaining water in the step (2), the elastic emulsion, the defoaming agent, the antiseptic bactericidal agent, the film-forming auxiliary agent, the anti-freezing agent and the thickening agent in the ground slurry, and carrying out uniform mixing.