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38results about How to "Improve typicality" patented technology

Vibration event mode identification method

The invention discloses a vibration event mode identification method. The method includes acquiring and obtaining the original vibration signals, including the vibration signal and the non-vibration signal, via a vibration sensor; separating the vibration signal in the original vibration signals; denoising the vibration signal; performing feature extraction on the denoised vibration signal and obtaining the characteristic vector including three characteristics of: A performing wavelet packet decomposition on the time-frequency domain and obtaining the energy characteristic vector, B performing the cepstrum analysis and extracting the cepstrum parameter characteristics, and C extracting the signal characteristic on the time domain; and establishing an identification model composed of two grades of classifiers, wherein the first grade of classifier is a classifier based on SVM and divides the vibration events into non-intrusive events and intrusion events by taking the characteristic vector extracted from the vibration signal as the input, and the second grade of classifier performs the identification based on the artificial nerve network for the intrusion events to obtain the classification result.
Owner:CSIC NO 710 RES & DEV INST

Secondary fermentation process of blueberry fruit wine

The invention relates to a secondary fermentation process of blueberry fruit wine. The secondary fermentation process comprises the following steps: raw material sorting, crushing, and pulping; enzymolysis; juice squeezing; freezing concentration; ice yeast main fermentation and fruit wine yeast secondary fermentation; pot pouring, clarification and filtration; ageing; sterilization, cooling and filtration; and storage, filtration and encapsulation. By utilizing a ice yeast main fermentation-fruit wine yeast secondary fermentation technique, the concentration of a dry extract of the blueberry fruit wine is increased, the generation amount of grain oil in a fermentation process is reduced, and the typicality of the finished wine is improved.
Owner:天津市农业科学院

Method for establishing fingerprint maps of rhaponticum uniflorum of Mongolian medicines and method for evaluating quality of rhaponticum uniflorum

InactiveCN105628834AHigh precisionStrong system applicabilityComponent separationSolventChromatographic column
The invention relates to a method for establishing fingerprint maps of rhaponticum uniflorum of Mongolian medicines. The method includes 1), preparing test solution, to be more specific, arranging medicinal material powder in a 100 mL conical flask with a stopper, adding 70% methanol into the conical flask, carrying out microwave extraction, arranging the conical flask in a room-temperature environment, then weighing the conical flask, supplementing lost weight of the conical flask by the aid of solvents, filtering liquid to obtain filter liquid and filtering the filter liquid by the aid of filter membranes with micro-pores with the sizes of 0.45 micrometer; 2), filling an efficient liquid-phase chromatographic instrument with the test solution to obtain the fingerprint maps. Chromatographic conditions includes that chromatographic columns are octadecylsilane chemically bonded silica chromatographic columns; mobile phases include acetonitrile (A) and 0.2% phosphoric acid aqueous solution (B), and the B is eluted by 85% (for 0 min), 78% (for 12 min), 74% (for 13 min) and 60% (for 60 min) in a gradient manner. Detection conditions include that the detection wavelengths of DAD (diode array detectors) are 230-400 nm; column temperatures are 20-40 DEG C; the sample sizes are 5-30 micro-L. The invention further provides a method for evaluating the quality of the rhaponticum uniflorum of the Mongolian medicines by the aid of the fingerprint maps. The methods have the advantages that the methods are high in sensitivity and good in repeatability; the varieties and the quantities of chemical components in Mongolian medicinal materials with the rhaponticum uniflorum can be comprehensively reflected by the aid of the obtained standard fingerprint maps.
Owner:INNER MONGOLIA MEDICAL UNIV

High-alcoholic-strength high-bitter-substance hops-flavor IPA beer and preparation method thereof

The invention discloses high-alcoholic-strength high-bitter-substance hops-flavor IPA beer and a preparation method thereof, belonging to the technical field of beer brewing. According to the invention, Ale malt and burnt malt are used as raw materials; through reasonable matching of the raw materials, adoption of a reasonable usage amount of hops and usage of reasonable saccharification, fermentation and dry hops feeding processes, the fragrance of the hops and the fragrance of wheat are fused and coordinated, and the finally prepared beer presents an amber red color and has the characteristics of rich hops fragrance and fruity flavor, strong bitter taste, sweet aftertaste and the like; the original wort concentration of the beer is 16-22 degrees P; the alcoholic strength of the beer is greater than or equal to 7.0% vol; the chromaticity of the beer is 30-50 EBC; and the value of bitter substances is 50-100 EBC. The method can be well applied to production of high-alcoholic-strength high-bitter-substance hops-flavor IPA beer.
Owner:TSINGTAO BREWERY

Establishment method and quality evaluation method of Mongolian medicine Louluhua fingerprint

InactiveCN105628834BTypicalRepresentativeComponent separationRhaponticum uniflorumPhosphoric acid
The invention relates to a method for establishing fingerprint maps of rhaponticum uniflorum of Mongolian medicines. The method includes 1), preparing test solution, to be more specific, arranging medicinal material powder in a 100 mL conical flask with a stopper, adding 70% methanol into the conical flask, carrying out microwave extraction, arranging the conical flask in a room-temperature environment, then weighing the conical flask, supplementing lost weight of the conical flask by the aid of solvents, filtering liquid to obtain filter liquid and filtering the filter liquid by the aid of filter membranes with micro-pores with the sizes of 0.45 micrometer; 2), filling an efficient liquid-phase chromatographic instrument with the test solution to obtain the fingerprint maps. Chromatographic conditions includes that chromatographic columns are octadecylsilane chemically bonded silica chromatographic columns; mobile phases include acetonitrile (A) and 0.2% phosphoric acid aqueous solution (B), and the B is eluted by 85% (for 0 min), 78% (for 12 min), 74% (for 13 min) and 60% (for 60 min) in a gradient manner. Detection conditions include that the detection wavelengths of DAD (diode array detectors) are 230-400 nm; column temperatures are 20-40 DEG C; the sample sizes are 5-30 micro-L. The invention further provides a method for evaluating the quality of the rhaponticum uniflorum of the Mongolian medicines by the aid of the fingerprint maps. The methods have the advantages that the methods are high in sensitivity and good in repeatability; the varieties and the quantities of chemical components in Mongolian medicinal materials with the rhaponticum uniflorum can be comprehensively reflected by the aid of the obtained standard fingerprint maps.
Owner:INNER MONGOLIA MEDICAL UNIV

Device and method for extracting total DNA of matrix-attached microorganisms

ActiveCN111269800AOvercoming sampling difficultiesImprove typicality and representativenessBioreactor/fermenter combinationsBiological substance pretreatmentsMicrobial GenomesEngineering
The invention discloses a device and a method for extracting total DNA of matrix-attached microorganisms, and belongs to the technical field of molecular biology, the device comprises a pressure control flushing device, a negative pressure device and a collecting device, the flushing water outlet pressure is controlled through the pressure control flushing device; suspension generated by flushingthe matrix through a flushing pipeline is collected to the collecting device through the negative pressure pipeline; the invention also discloses an extraction method of DNA. The negative pressure device is matched to collect samples; the method overcomes the problems of difficult sampling and incomplete sampling of microbial samples attached to a matrix in the prior art, significantly improves the representativeness, extraction efficiency and quality of microbial genome DNA attached to the matrix, has bright and clear strips, is basically non-degradable, and has good extraction efficiency ondifficult-to-extract microorganisms, such as fungi and the like.
Owner:NANJING UNIV +1

Winter jujube liquor and preparation process thereof

The invention relates to winter jujube liquor and a preparation process thereof. The preparation process of the winter jujube liquor comprises the following steps: thoroughly washing winter jujube fruits, carrying out crushing, adding water, carrying out cooking, and carrying out filtration so as to have filter residues removed, thereby obtaining winter jujube juice; mixing the winter jujube juicewith white granulated sugar, and cooking the mixture until boiling so as to obtain a jujube-flavor solution; crushing dried red dates, and carrying out stir-frying so as to obtain stir-fried red dates; mixing the stir-fried red dates with edible ethanol so as to carry out soaking, and carrying out filtration after completion of the soaking so as to have filter residues removed, thereby obtainingan original liquor liquid; and then, mixing the jujube-flavor solution with the original liquor liquid, and carrying out storage so as to obtain the winter jujube liquor. According to the preparationprocess, the winter jujube fruits are cooked first so as to have aroma, sugar and nutrients dissolved out; and the red dates are stir-fried so as to produce burnt sweet aroma. Thus, the finally obtained winter jujube liquor has relatively high levels of appearance, aroma, flavor, typicality and hygiene standards.
Owner:周毅

Distributed photovoltaic access prediction method, system and device

ActiveCN114792993AScientific assessment basisAccurate assessment basisGeneration forecast in ac networkSingle network parallel feeding arrangementsPower gridGrid connection
The invention provides a distributed photovoltaic access prediction method, system and device. The method comprises the following steps: acquiring photovoltaic station data, electrical load data, power grid equipment data and meteorological related data; determining a representative day according to the photovoltaic station data, the electrical load data and the meteorological related data, and calculating the load at each moment of the representative day and the photovoltaic output at each moment of the representative day; updating equipment equivalent impedance data according to the power grid equipment data; carrying out load flow calculation according to the active power and reactive power of the inverter side of the photovoltaic station, the load at each moment of the representative day, the photovoltaic output at each moment of the representative day and equipment equivalent impedance data to obtain a calculation result of each piece of equipment at each moment; and comparing the calculation result of each device at each moment with a preset value, and determining an abnormal device. According to the invention, the operation state of the power grid after distributed photovoltaic grid connection can be simulated, and abnormal equipment is pre-judged in advance, so that a more scientific and accurate evaluation basis is provided for operation and maintenance personnel.
Owner:南京瀚元科技有限公司

A Pattern Recognition Method for Vibration Events

The invention discloses a method for pattern recognition of vibration events, comprising the following steps: collecting and acquiring an original vibration signal through a vibration sensor, the original vibration signal including a vibration signal and a non-vibration signal; and dividing the vibration signal in the original vibration signal; Perform denoising processing on the vibration signal; perform feature extraction on the denoised vibration signal to obtain a feature vector, including three features: feature A. Perform wavelet packet decomposition in the time-frequency domain to obtain an energy feature vector; feature B, Perform cepstral analysis to extract cepstral parameter features; feature C, extract signal features in the time domain; establish a recognition model, which is composed of two-level classifiers; the first-level classifier is based on the support vector machine SVM classifier, using from vibration The feature vector extracted from the signal is used as input, and the vibration events are divided into non-intrusion events and intrusion events; the secondary classifier is to identify the intrusion events based on artificial neural network and obtain the classification results.
Owner:CSIC NO 710 RES & DEV INST

Use method of monascus in sesame-flavor liquor processing

ActiveCN102311904BHigh acid protease activityHigh yield esterase activityMicroorganism based processesAlcoholic beverage preparationBiotechnologySteeping
The invention discloses a use method of monascus in sesame-flavor liquor processing, and relates to the technical field of liquor brewing. Monascus first-order seeds and monascus second-order seeds are subjected to re-expanding culture, yeast steeping and drying in an oven to form monascus through adopting a key technology that a production process is regulated scientifically based on monascus addition. In the invention, sorghum, wheat and bran are utilized as main materials and rice husks are utilized as an auxiliary material. The main materials and fermented grains obtained by distillation of liquor are mixed into novel fermented grains. The novel fermented grains are steamed, spread for cooling and mixed with high-temperature and middle-temperature yeast for making hard liquor, fermentation bran koji and the prepared monascus to form accumulated fermented grains. After culture, the accumulated fermented grains are adjusted to acidity of 1.5 to 2.3 by rice husks and water and are putted into a fermentation pit for fermentation. After the fermentation, fermentation products are taken out from the fermentation pit and are subjected to preparation, distillation and gelatinization to form sesame-flavor raw liquor. The sesame-flavor raw liquor is stored hierarchically. The use method is utilized for production of sesame-flavor liquor. An acid protease added with monascus has highactivity. High temperature-resistant bacterial yeast and composite flavor-producing yeast are not added in process standardization. Fermentation pit performs fully its effects. A utilization rate of raw materials is high. The quality of produced liquor is high. The cost is low.
Owner:SICHUAN CHUNZHIYUAN WINE
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