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110results about How to "Reduce extraction efficiency" patented technology

Phosphor reflecting sheet, light emitting diode device, and producing method thereof

InactiveUS20120261700A1Attenuation of lighting efficiencyReduce extraction efficiencyMirrorsSolid-state devicesPhosphorFluorescence
A phosphor reflecting sheet provides a phosphor layer on one side in a thickness direction of a light emitting diode element and provides a reflecting resin layer at the side of the light emitting diode element. The phosphor reflecting sheet includes the phosphor layer and the reflecting resin layer provided on one surface in the thickness direction of the phosphor layer. The reflecting resin layer is formed corresponding to the light emitting diode element so as to be disposed in opposed relation to the side surface of the light emitting diode element.
Owner:NITTO DENKO CORP

Maca composite beverage and preparation method thereof

The invention discloses a maca composite beverage. The beverage is prepared from raw materials of, calculated by 800 to 1200kg of the beverage: 10 to 20kg of maca, 10 to 30kg of okra, 1 to 5kg of male silk moth, 0.1 to 0.5kg of arginine, 0.1 to 0.5kg of potassium sorbate, 1 to 3.5kg of citric acid, 0.05 to 0.15kg of trichlorosucrose, and an appropriate amount of water. The maca composite beverage contains no sugar and low heat. The beverage provides healthcare functions of fatigue resisting, pressure releasing, health enhancing, body strengthening, and male function enhancing. The invention also discloses the preparation method of the maca composite beverage. Maca, okra, male silk moth, arginine, citric acid, trichlorosucrose and potassium sorbate are adopted as main materials; the materials are processed through enzymolysis, extracting, mixing and filtering, such that the composite beverage is prepared. The operation is simple, and the method is suitable for industrialized productions.
Owner:ZHEJIANG ACAD OF MEDICAL SCI

Display device

A display device according to an embodiment of the present invention includes: a first substrate; light emitting elements arranged on the first substrate and including electrodes; a first insulation layer covering an edge of each of the electrodes on the first substrate; a second insulating section arranged on the light emitting elements and overlapping with the light emitting elements in plan view; a third insulating section arranged the banks, overlapping with the banks in plan view and having a lower refractive index than a refractive index of the second insulating section.
Owner:JAPAN DISPLAY INC

Reflecting resin sheet, light emitting diode device and producing method thereof

A reflecting resin sheet provides a reflecting resin layer at the side of a light emitting diode element and includes a first release substrate and the reflecting resin layer provided on one surface in a thickness direction of the first release substrate. In the first release substrate and the reflecting resin layer, a through hole extending therethrough in the thickness direction is formed corresponding to the light emitting diode element so as to allow an inner circumference surface of the through hole in the reflecting resin layer to be disposed in opposed relation to a side surface of the light emitting diode element.
Owner:NITTO DENKO CORP

Method for extracting single tree information from LiDAR point cloud in layered clustering mode

The invention discloses a method for extracting single tree information from LiDAR in a layered clustering mode and belongs to the scope of LiDAR point cloud data processing and information extraction. According to the key technical point, 1, the point cloud is horizontally layered; 2, all the layers of point cloud are classified in a k mean value clustering mode, and different attribute values are provided for all the layers of point cloud; 3, the point cloud meeting preset conditions is fused; 4, the single tree positions, the tree height, the crown breadth and other information are extracted from the point cloud with the same attribute values, and forest stand structure information is calculated through the single tree information. The method has the key advantages that extraction of floor stratum single trees is achieved, and the number of accurately extracted forest stand forests reaches 80% or above; the function of extracting the single tree information from LiDAR and calculating the forest stand structure is achieved; no excessive requirement on the point cloud density is generated, and it is proved that the point cloud of 2p / m<2> can complete relevant work. The method can be applied to the field of LiDAR inversion information, is especially suitable for the forest stand condition with the complex structure, and can accurately extract the single tree positions, the tree height, the crown breadth, the forest stand structure parameters and other relevant information.
Owner:BEIJING FORESTRY UNIVERSITY

Method for extracting digital video fingerprints

The invention discloses a method for extracting digital video fingerprints. The method comprises the following steps of: extracting video slices of vision perception characteristics of a video fragment sequence, analyzing frequency domain characteristics of the video slices, processing the video slices by effectively using time-space relativity among the video contents and using 2-dimensional discrete wavelet transform (2D-DWT), and extracting horizontal detail component coefficients or vertical detail component coefficients in the 2D-DWT to serve as fingerprint information. The horizontal detail component coefficients or the vertical detail component coefficients reflect the stimulation of video content change on vision perception rather than low-level characteristics, such as color or gray, of a video frame at a certain moment, so that the method has good robustness for different video formats and different video contents. Meanwhile, the video slices are uniformly distributed in the whole video fragment, reflect the content change of the whole video fragment and have sensitivity, so that the method can meet requirements on video content identification and monitoring and precaution to various attacks. Meanwhile, by using the method, the size of the fingerprints is greatly reduced, and the efficiency of fingerprint extraction is improved. Therefore, the performance of the method is superior to that of the conventional digital video fingerprint extraction method.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Purification method of phloretin powder

The invention relates to a purification method of phloretin powder, belonging to the technical field of the chemical industry. The purification method comprises the following steps of: mixing and purifying leechee shells and an alcohol solution to obtain a crude extract; carrying out ion exchange resin separation after concentration; and finally carrying out macroporous resin separation to obtainthe phloretin powder. The invention has the advantages that the process is simple, the extraction ratio achieves above 60%, the purity of the extracted phloretin can achieve above 95%, and the extracted phloretin is applied to the fields of cosmetics.
Owner:上海利盛生化有限公司

Extraction method for mangrove plant kandelia candel leaf total protein suitable for two-dimensional electrophoresis

The invention discloses an extraction method for mangrove plant kandelia candel leaf total protein suitable for two-dimensional electrophoresis. A traditional trichloroacetic acid / acetone precipitation method for protein extraction and a traditional phenol extraction method for protein extraction are combined, a cosolvent SDS solution is introduced, the extraction process is optimized, and the Phe-B method suitable for extraction of the mangrove plant kandelia candel leaf total protein is established. The extraction efficiency and quality of the protein are effectively improved, and the technical scheme can be specifically suitable for extraction of the kandelia candel leaf protein in two-dimensional electrophoresis. The method has the advantages of being easy to operate, high in protein extraction efficiency and fewer in interfering substance, and is suitable for materials with difficult protein extraction, low protein extraction efficiency and more interfering substances. The extracted kandelia candel leaf protein completely meets the requirements of the first direction and the second direction of two-dimensional electrophoresis, a high-quality two-dimensional electrophoresis gel map with high resolution, more clear protein points, uniform distribution and the clear background can be obtained, and experiment repeatability and stability are good.
Owner:SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI

Dendrobium officinale beverage and preparation method thereof

The invention provides a dendrobium officinale beverage. The dendrobium officinale beverage is prepared from the following raw materials in parts by weight: 4-8 parts of dendrobium officinale, 3-8 parts of a food nutrition enhancer, and drinking water supplementing the beverage until the final concentration of the food nutrition enhancer in the beverage is 1-5g / 100mL, wherein the food nutrition enhancer comprises the following components in parts by weight: 1-5 parts of taurine, 10-20 parts of isomaltooligosacharide and 10-25 parts of xylitol; the dendrobium officinale is counted by raw drug amount in dry stems of the dendrobium officinale. The dendrobium officinale beverage is clear in efficacy; the preparation method is economical and high in efficiency; the dendrobium officinale beverage product is safe and reliable.
Owner:JINHUA SHOUXIANGU PHAMACEUTICAL CO LTD

Pixel array substrate and driving method thereof

A pixel array substrate and a driving method of a pixel array substrate are provided. The pixel array substrate includes a substrate, at least one pixel structure located on the substrate and a liquid crystal layer. The at least one pixel structure includes a micro light emitting diode (μLED), a supporting wall, a first bottom electrode located between the supporting wall and the μLED, and a first top electrode disposed on the supporting wall and separated from the first bottom electrode. The μLED includes a first electrode, a first semiconductor layer electrically connected to the first electrode, a second semiconductor layer, a light-emitting layer located between the first semiconductor layer and the second semiconductor layer, and a second electrode electrically connected to the second semiconductor layer. The liquid crystal layer is disposed on the first bottom electrode and located between the supporting wall and the μLED.
Owner:AU OPTRONICS CORP

Light emitting display apparatus

A light emitting display apparatus includes a substrate which includes a first area and a second area, an insulating layer on the substrate and having an uneven surface, a first bank on the insulating layer in the second area and formed of a black material, a first electrode on the insulating layer in the first area where the first electrode covers at least a part of a side surface of the first bank, a light emitting layer on the first electrode, and a second electrode on the light emitting layer.
Owner:LG DISPLAY CO LTD

Extraction method and application of active substance extracting solution

The invention discloses an extraction method and application of an active substance extracting solution. The method comprises the following steps: preparing an extracting solution, wherein the extracting solution at least comprises a eutectic solvent; adding an animal, plant or microorganism sample into the extracting solution; carrying out mechanical chemical extraction; carrying out centrifuging; and taking out the supernatant which is the active substance extracting solution. The method disclosed by the invention can be used for carrying out efficient and pollution-free extraction on activecomponents in animal, plant or microorganism samples, high temperature is not needed in the extraction process, and consumption of toxic organic solvents is not needed, so that environmental pollution is reduced. In a process of preparing daily chemical products by the extracting solution, the solvent is not required to be removed, and the extracting solution can be directly used. The method hasthe characteristics of simple operation, short time consumption, low cost and high extraction efficiency.
Owner:NANJING NORMAL UNIV CHANGZHOU INST OF INNOVATION & DEV

Transverse zinc oxide nanorod array light emitting diode

The invention discloses a transverse zinc oxide nanorod array light emitting diode. The transverse zinc oxide nanorod array light emitting diode comprises a sapphire substrate (101), a silicon dioxide insulating layer (102) and a gallium nitride buffer layer (103) which are sequentially arranged from bottom to top. A p-region electrode (106) is arranged on one lateral side of a rectangular etching groove in the gallium nitride buffer layer (103), a piece of blocky n<+>-ZnO (104) is arranged on the other lateral side, opposite to the lateral side, of the rectangular etching groove, and an n-region electrode (105) of an ITO-ZnO film is arranged on the blocky n<+>-ZnO (104). The transverse zinc oxide nanorod array light emitting diode further comprises a ZnO nanorod array (107), an n-type region and a p-type region are arranged at the two ends of the ZnO nanorod array respectively, and meanwhile the ZnO nanorod array is connected with the p-region electrode (106) and the blocky n<+>-ZnO (104) through the p-type region and the n-type region respectively. The transverse zinc oxide nanorod array light emitting diode is high in both light extraction efficiency and electron injection efficiency and meanwhile low in cost.
Owner:SOUTHEAST UNIV

Method for separation purification of polyhydroxy-alkyl-pyrazine from suger amine reaction liquid

This invention discloses a method of separately purifying caoboxyl alkyl pyrazine from sugar ammonium reaction liquor. Compound got by reaction of sugar and ammonia is pressed let in acceptable filtration membrane (retention molecular weight is more than 200) or exceed filtration membrane (retention molecular weight is more than 1000) from material storage tank. Macromolecule matter is entrapped by membrane module, parts feed liquids penetrate the two membranes (there is multi-caoboxyl alkyl pyrazine, and macromolecule matter content is low or absence because of entrapped by membrane module), the material liquid that don't penetrate the membrane module is sent back to material storage tank through tubes and then sent to membrane modules to be separated. Pure water can be added to material storage tank for dilution at the later stage of separation, then acceptable filtration or exceed filtration is kept on to make the multi-caoboxyl alkyl pyrazine penetrate the module along with the penetration liquid at the best. All penetration liquids are collected and pure multi-caoboxyl alkyl pyrazine category matter can be got after concentration, extraction, decoloration, crystallization or using chromatogram etc. technologies. It can be used as spice or medicine materials. The material liquid can be directly used to perfuming and charging of cigarette to improve taste of cigarette and other aspects.
Owner:CHINA TOBACCO HUNAN INDAL CORP

Extracting method of 2'-hydroxy-4'-methoxyacetopheone

The invention provides an extracting method of 2'-hydroxy-4'-methoxyacetopheone.The method comprises the steps that a water steam distillation and alkali-dissolution and acid-precipitation combined method is adopted to extract 2'-hydroxy-4'-methoxyacetopheone, moutan bark and whole plants of paniculate swallowwort or paniculate swallowwort roots serve as the raw materials, the raw materials are smashed and subjected to water extraction for 10 h-23 h, water steam distillation is conducted, and distillation is stopped when the mass of distillate is 2.5-3 times that of the raw materials; the distillate is cooled and filtered, a product A is obtained, the pH of the raw material and residual liquid in a flask after water steam distillation is conducted is adjusted to be 12-14, and alkali dissolution is conducted; the pH of the solution is adjusted to be 5-7 after alkali dissolution is conducted, acid precipitation is conducted, cooling and filtering are conducted, and a product B is obtained.The method can efficiently extract 2'-hydroxy-4'-methoxyacetopheone, the extraction rate reaches up to 95.3%, and the purity of obtained 2'-hydroxy-4'-methoxyacetopheone reaches up to 98.8%; according to the method, no organic solvent is adopted, environmental pollution is avoided, and environmental friendliness is better achieved.
Owner:CHONGQING UNIV

Method for identifying bee pollen based on kaempferol 3-O-beta-D-glucose-(2-1)-beta-D-glucoside

ActiveCN104181269AGood repeatabilityStrengthen species identificationComponent separationTandem mass spectrometryStandard curve
The invention relates to a method for identifying bee pollen based on kaempferol 3-O-beta-D-glucose-(2-1)-beta-D-glucoside. The method comprises the following steps: preparing a standard stock solution and a standard working solution, pretreating bee pollen, and detecting by using a liquid chromatogram-tandem mass spectrometry method. The detection result of the method shows that the standard curve relevance coefficient is greater than 0.9990, the addition recycling rate ranges from 73.1 percent to 98.4 percent, the relative standard error is less than 6.1 percent, the detection limit is 0.1mu g / g, and the quantitation limit is 0.3mu g / g. The result shows that the established extraction method and an instrument analysis method are accurate and stable and applicable to qualitative and quantitative analysis on kaempferol 3-O-beta-D-glucose-(2-1)-beta-D-glucoside.
Owner:BEE RES INST CHINESE ACAD OF AGRI SCI

Vitex negundo linn leaf extract and preparation method as well as application thereof

The invention relates to the technical field of plant active material extraction, and particularly relates to a vitex negundo linn leaf extract and preparation method as well as application thereof. General flavone content in the vitex negundo linn leaf extract is not less than 82.5%, organic is not used in the preparation method of the vitex negundo linn leaf extract, and on the premise of guaranteeing purity of flavonoid compounds, extraction efficiency is improved. Experiment shows that, when being used in skin care products, the vitex negundo linn leaf extract cannot cause adverse reaction, and enables skin to be more shiny and elastic.
Owner:GUANGZHOU SALIAI STEMCELL SCI & TECH CO LTD

Extraction method and device of guardrail point cloud

The invention discloses an extraction method and a device of guardrail point cloud. The method comprises steps of obtaining shape characteristics of a first guardrail which is a wave-shaped safeguard, a cement anti-collision pier or a sound isolation wall; and extracting a first safeguard point cloud from a single-frame road point cloud according to the shape characteristics of the first guardrail. According to the invention, after the shape characteristics of the first safeguard are obtained, the first safeguard point cloud is extracted from the single-frame road point cloud according to the shape characteristics of the first safeguard. In the prior art, the guardrail cloud is extracted by engineers, so extraction efficiency is low. According to the invention, a machine can extract the guardrail point cloud from the road point cloud according to the shape characteristics of the first guardrail without manual extraction of engineers, so labor cost is reduced, extraction efficiency of the machine is quite fast and identification efficiency of the guardrail is increased.
Owner:BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD

Smoke gas extraction system applied to ammonia escape detection and smoke gas extraction method

The invention provides a smoke gas extraction system applied to ammonia escape detection and a smoke gas extraction method. The smoke gas extraction system comprises a smoke gas sampling device, an extraction power device and an anti-blocking device, wherein the smoke gas sampling device comprises a plurality of extraction heads in equal-area matrix distribution in the flue cross sections; the plurality of extraction heads are communicated with a mixed gas mother tank through sampling pipelines; the sampling pipelines are communicated with the mixed gas mother tank and the anti-blocking devicein parallel; a valve is arranged on each sampling pipeline; the extraction power device is connected with the mixed gas mother tank. The ammonia and NOx quantity at an SCR reactor outlet can be accurately detected; the ammonia spraying is realized according to the mole ratio of ammonia to NOx; the excessive ammonia spraying is avoided, so that the ammonium salt crystallization is reduced; the problem of air preheater blockage is solved. A large amount of cleaning and maintenance cost is reduced. The ammonium salt crystallization formation at the catalyst surface and nearby part is avoided; the service life of the catalyst is prolonged. The blockage damage of the whole system can be prevented through the anti-blocking device; the operation reliability and the service life of once commissioning are ensured.
Owner:陕西凯特自动化工程有限公司

Preparing process of compound red skin blood-enriching oral liquid

The invention belongs to the technical field of medicine extraction, and discloses a preparing process of compound red skin blood-enriching oral liquid. The method includes the following steps of firstly, preparing an agaric extraction solution; secondly, preparing fructus lycii extracts; thirdly, preparing Chinese date extracts; fourthly, preparing a peanut skin extraction solution; fifthly, conducting boiling, filtering, subpackaging and sterilizing. The preparing method is simple and feasible, different traditional Chinese medicine components can be processed through different technologies,effective components of all raw materials are improved, the medicine effect is improved, and raw material waste is reduced.
Owner:XIANGYU PHARMA

Green extraction technology of lacquer wax

ActiveCN105062658AOvercome higher health risksReduce yieldFatty-oils/fats productionWaxNatural product
The invention relates to a natural product extraction technology, which is a green extraction technology of a lacquer wax. According to the invention, dimethyl carbonate is taken as an extractant, then steps of baking, core removing, extraction, chromatography, elution, collection and product forming are carried out for extracting lacquer wax in lacquer seed. The technology has high recovery rate on the lacquer wax, the lacquer wax extraction rate is more than 95%, the extraction yielding rate is more than 75%, and the lacquer wax can be recycling utilization, in the technology, dimethyl carbonate is taken as a green extractant, and is the high efficiency extraction technology with environmental protection.
Owner:SICHUAN LINGDUN ECOLOGICAL AGRI TECHDEV

Extracting method for ursolic acid and application

The invention relates to an extracting method for ursolic acid and an application. The extracting method comprises the following steps: S1, taking songaria cynomorium herb and mixing with ethyl alcohol and a deep-eutectic solvent, ultrasonic-extracting, centrifuging, to obtain ursolic acid crude extract liquid; S2, enabling the ursolic acid crude extract liquid to be mixed with inorganic salt, toobtain mixed liquid, and adjusting a temperature and a pH value of the mixed liquid, to obtain the ursolic acid. The method is capable of using a salting out extraction system in a more moderate usingcondition, and reducing a potential risk of organic solvent extraction. In addition, the method is capable of further using the environment-friendly deep-eutectic solvent as an additive, and improving extraction efficiency of a product.
Owner:INST OF BAST FIBER CROPS CHINESE ACADEMY OF AGRI SCI

Feed additive containing natural lutein

The invention discloses a feed additive containing natural lutein. The feed additive is prepared by the following step: carrying out emulsification on a water phase and an oil phase according to the weight part ratio of (2.8-3.5):7, wherein the water phase is prepared by mixing deionized water and sodium hydrogen phosphate, and the weight volume ratio of the sodium hydrogen phosphate to the deionized water is 1g to (650L-750L); the oil phase is prepared by mixing extraction oil, Tween 80 and monostearin, and the weight part ratio of the extraction oil to the Tween 80 to the monostearin is (38-42):(7-11):(10-14); the extraction oil is prepared from the following raw materials in parts by weight: 15-25 parts of fish oil or plant oil and 8-15 parts of marigold petal powder. With the adoption of a preparation method of the feed additive, with the fish oil or the plant oil as a carrier of a marigold extract, the active components of marigold can be fully extracted, and the extract is protected from oxidizing. The feed additive can be better utilized by animals.
Owner:QINGDAO ZHONGREN ZHIYE BIOTECH

Papaya anti-oxidant serum and preparation method thereof

The invention discloses a papaya anti-oxidant serum, which comprises cyclodextrin inclusion compound of pawpaw natural antioxidant and carriers accepted in pharmacy. The papaya anti-oxidant serum consists of enzymolysis water extract and alcohol extract of the papaya, in which vitamin C and polyphenols are contained. Vitamin C contained in papaya anti-oxidant serum is no less than 2 milligram per gram, and the total polyphenols calculated in gallic acid is no less than 22 milligram. Therefore, the papaya anti-oxidant serum has the characteristics of high efficiency, durability and stable inoxidizability and easy storage and carrying, can be served as health food to eat, can used as cosmetics, animal food, food or medical mediate, and further can used for preparing antioxidation products; the invention also discloses a preparation method for the papaya anti-oxidant serum, which comprises seven steps of pulping, enzyme digestion, filtering, alcohol extraction, concentration, inclusion and pelletization, so as to be a system for efficiently, sufficiently and completely extracting papaya anti-oxidant, and the antioxidative activity can be effectively preserved.
Owner:ARMY MEDICAL UNIV

Low-cost and high-extraction efficiency extraction method of peony flower stock solution

The invention belongs to the technical field of peony processing, and particularly relates to a low-cost and high-extraction efficiency extraction method for a peony flower stock solution. The extraction method comprises the following steps: harvesting peony petals; carrying out cryopreservation on the petals; carrying out enzyme deactivation and sterilization treatment; squeezing and standing, and taking the upper-layer liquid to obtain a peony petal stock solution first crude liquid; sterilizing and decoloring; and filtering, and filtering for the second time to obtain the peony flower stocksolution. According to the invention, the peony flower stock solution prepared by the method disclosed by the invention is strong in free radical resistance, does not pollute the environment to the greatest extent, and is most energy-saving; compared with other processes such as distillation, supercritical carbon dioxide, subcritical, biological fermentation and other disclosed production processes, the product provided by the invention has strong oxidation resistance and stability; and raw material resources are fully utilized, the process is simple and convenient, economic benefits are high, investment cost is low, residues are low, no waste water or waste gas is generated, and efficient industrialization is achieved.
Owner:天宝牡丹生物科技有限公司

Extraction method of fructus cannabis globulin, product and application thereof

The invention relates to an extraction method of fructus cannabis globulin, a product and application thereof. The extraction method comprises the following steps: dehydrating and deoiling fructus cannabis, mixing with a salt solution, extracting, filtering and cooling to obtain the fructus cannabis globulin. The extraction method provided by the invention is simple and easy to operate, the extracted globulin is high in yield and high in purity, contains all essential amino acids of a human body, is particularly high in arginine content, can be applied to foods, health products or medicines, and has the effects of resisting fatigue, improving immune health, preventing cardiovascular diseases and the like.
Owner:YUNNAN HEMPMON PHARMA CO LTD

Compound peanut red-skin blood supplementing oral liquid and quality detection method thereof

ActiveCN107412440AHigh active ingredientImprove the active ingredients and increase the efficacyDispersion deliveryComponent separationMedicineCLARITY
The invention belongs to the technical field of drug extraction, and discloses compound peanut red-skin blood supplementing oral liquid. The compound peanut red-skin blood supplementing oral liquid is prepared from the following raw materials: Exidia auricula Judaefungus, fructus lycii, fructus jujubae, peanut red skin, honey, cane sugar, citric acid and a stabilizer. The oral liquid is has the advantages of unique in extraction process, good in drug effect, good in clarity, free fromno turbidity and precipitation and good in stability.
Owner:XIANGYU PHARMA

Method of extracting non-alkaloid from fructus meliae toosendan and rhizoma corydalis

The invention discloses a method of extracting non-alkaloid from fructus meliae toosendan and rhizoma corydalis, relates to an extraction method of the non-alkaloid and aims at solving the technical problems of the traditional method of extracting the non-alkaloid of low speed, high cost, need for reflux high temperature, complex operation, high cost of extraction process and low extraction efficiency. The method comprises the following steps: mixing the rhizoma corydalis and the fructus meliae toosendan, grinding, adding an ethanol aqueous solution, and carrying out ultrasonic treatment and microwave heating; then carrying out ultrasonic treatment, filtering, collecting a filtrate, steaming out ethanol in the filtrate, adding water to regulate a pH value, and collecting an ion exchange liquid containing the non-alkaloid component; and regulating a pH value to be 7, carrying out vacuum concentration, and drying under vacuum to prepare non-alkaloid powder. Compared with the decocting and alcohol precipitation processes, the method has the following characteristics of rapidness in extraction, high extraction rate, low cost, high efficiency, no need for reflux high temperature, simpleness and feasibility in operation, low cost of the extraction process and remarkable comprehensive economical benefit. The invention belongs to the field of extracting the non-alkaloid.
Owner:HEILONGJIANG UNIV OF CHINESE MEDICINE

Log template rapid extraction method and system based on association analysis and time window

The invention belongs to the technical field of system log analysis, and discloses a log template rapid extraction method and system based on correlation analysis and a time window. The method comprises the steps of log hierarchical relationship extraction of extracting a plurality of seed types from a system log with correlation, wherein the seed types serve as all log models of events of the type; and constructing a template tree, wherein the processed field logs with the same field are used as father nodes in the tree structure. By respectively extracting the data set templates from a manual clustering result and three template extraction methods by using a Rand _ index method, and respectively comparing the similarities of the data set templates, in the three compared template extraction methods, an online template extraction model has the lowest data set template extraction efficiency, and the correction rate is about 50%, a template extraction model has the highest efficiency, and the correction rate is about 90%, so that the template extraction model based on the association relationship provided by the invention is more reliable.
Owner:XIDIAN UNIV
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