369results about How to "Analysis method is simple" patented technology

The invention discloses a domain name resolution method, a server, a terminal and a system and belongs to the technical field of internet. The method includes the following steps: a domain name resolution request, which carries a domain name which needs to be resolved and IP information of the terminal, sent by the terminal is received; an IP address attribute of the terminal is determined; an IP address which matches the domain name which needs to be resolved and the IP address attribute of the terminal; and according to the IP address which matches the IP address attribute of the terminal, a domain name resolution result is obtained and a domain name resolution result is returned to the terminal. Through reception of the domain name resolution request, which carries the IP information of the terminal, sent by the terminal, and according to the IP information of the terminal, the IP address attribute of the terminal is determined and according to the domain name which needs to be resolved and the IP address attribute of the terminal, the domain name resolution result is obtained. The domain name resolution method is simple and the domain name resolution efficiency can be improved so that the terminal is enabled to access websites rapidly and nearest access is arranged for the terminal according to the IP address attribute of the terminal so that global traffic configuration and refined scheduling of the terminal can be realized.

The invention provides a method for identifying traditional Chinese medicinal materials by combining infra-red spectra with cluster analysis, which includes the following steps of: (1) selecting a same traditional Chinese medicinal material as a standard sample; (2) detecting the standard sample by infra-red spectra to obtain an infra-red spectrogram; (3) establishing a standard infra-red model of the traditional Chinese medicinal material by a cluster analysis method with the obtained infra-red spectrogram; and (4) comparing the standard infra-red model with the infra-red spectrogram of the sample of traditional Chinese medicinal material to be identified and directly analyzing and identifying the traditional Chinese medicinal material. The method is simple, convenient, and rapid, and can keep the integrity of the traditional Chinese medicinal material and directly determine the quality of the traditional Chinese medicinal material and identify whether the traditional Chinese medicinal material is authentic or not.

The invention relates to spina date seed reference extract and a preparation method and application thereof and belongs to the technical field of traditional Chinese medicine quality control. The preparation method of the spina date seed reference extract includes the following steps of smashing, degreasing, extracting, macroporous resin purifying, silica gel purifying and acquiring of the spina date seed reference extract finally. Spina date seed medicinal materials are degreased, extracted and purified through a specific method, finally the spina date seed reference extract with specific constituents is acquired, and the reference extract includes jujuboside A, jujuboside B and other saponin constituents and further includes spinosin, 6'''-ferula asafetida spinosin and other flavonoid constituents. The spina date seed reference extract serves as a reference to be used in quality control over a traditional Chinese medicine preparation containing spina date seed medicine flavor and has the advantage that constituent information is comprehensively fed back; when the spina date seed reference extract is used, the complex pretreatment step is not needed, inspection can be directly conducted after dissolution, and the advantages of being easy and convenient to operate and low in detection cost are achieved.

The invention discloses an analysis method for simultaneously determining 16 phenolic compounds in water environment, and belongs to the technical field of phenolic compound analysis. According to the invention, solid phase extraction (SPE) is used for preprocessing a water sample, and a gas chromatography and mass spectrum coupling technique method (GC-MS) is used for qualitatively and quantitatively analyzing the 16 phenolic compounds in the water sample. Under the analysis condition optimized by the analysis method, the 16 phenolic compounds in water can be simultaneously determined, a good chromatographic peak can be obtained within 28 minutes, and a good separation effect can be obtained. The linearity of all the objective compounds in the concentration range of 5-1000 <mu>g / L is good, the correlation coefficients are all more than 0.9959, the detection limit achieves 0.04-4.0 <mu>g / L, the relative standard deviation is 0.22-13%, and the labeling recovery rate is 77-112%. The analysis method disclosed by the invention is simple, easy to operate, accurate and reliable, so that the analysis method is suitable for detecting large-scale samples.

The invention is a method for diagnosing battery health state, comprising the steps of: providing discharge voltage and current data of a battery; setting a preset time interval and acceptable values of discharge current variation in the preset time interval; analyzing the changes of the discharge voltage and current data in the preset time interval; recording the discharge voltage and current data and the change data; comparing the discharge voltage data with the change data within the acceptable values of discharge current variation; and displaying the comparative result with a health state diagnosis pointer.

The invention provides a method for calculating the intermediate and high frequency dynamic response of an acoustic vibration system. The method comprises the following steps of: firstly dividing the acoustic vibration system to be researched into N subsystems; then, determining analysis frequency ranges to which a modal energy analysis method and a statistical energy analysis method are applicable; when the analysis frequency is in an intermediate frequency range, calculating the intermediate frequency dynamic response of the researched acoustic vibration system by adopting the modal energy analysis method; and when the analysis frequency is in a high frequency range, calculating the high frequency dynamic response of the researched acoustic vibration system by adopting the statistical energy analysis method, wherein the modal energy analysis method comprises the following steps of: firstly determining the number of resonance modes and resonance frequency values of all the subsystems in the intermediate frequency range, and then establishing a power flow balance relationship among the resonance modes of the N subsystems, and finally solving the modal energy of each mode of all the subsystems according to the power flow balance relationship, summing the modal energy of the modes of each subsystem in an analysis frequency band so as to obtain the energy response of each subsystem in the analysis frequency band.

The invention discloses a method for analyzing the rock facies of a shale bed section. The method includes the following steps that a classification and naming rule of the rock facies is established; the rock facies boundary is recognized; the types of the rock facies are divided; the characteristics of the rock facies are described, and thus the favorable rock facies can be made definite; the distribution range of the rock facies is analyzed; comprehensive assessment of the rock facies is conducted. The analysis method is simple, clear, practical and easy to operate. By the adoption of the analysis method, the exquisite layering problem of a large set of extremely-thick and monotonous shale bed section can be solved quickly, and thus 'selecting the best from the splendid' in layer commenting and section choosing as well as in fracturing layer choosing using the rock facies as the unit is carried out based on the geology, development and engineering integrated principle, and therefore the economic aims of decreasing costs and increasing benefits and the aim of improving the single-well production capacity of shale oil and gas can be achieved.

The invention discloses a stratum overpressure formation mechanism analyzing method. A single well is adopted to actually measure stratum pressure, the stratum pressure prediction method and the stratum overpressure formation mechanism are combined, and by comparing differences among different pressure prediction curves and differences between prediction curves and an actual measurement curve, the stratum overpressure formation mechanism is analyzed. The invention adopts three stratum pressure prediction methods, namely, the Eaton method based on undercompaction formation, the equivalent depth method and the Bowers method based on fluid expansion formation. The invention analyzes the stratum overpressure formation mechanism by comparing the differences among different pressure prediction curves and the differences between prediction curves and the actual measurement curve, the analysis process is simple, influences of artificial intervention are few, and the prediction result is more reliable.

The invention discloses a method for studying metabolic difference of transgenic rice and non-transgenic rice. The method analyzes rice seed extract with liquid chromatography-mass spectrometry (LC-MS) technology to obtain metabolic profiling of rice, studies integral difference of metabolic profiling data between transgenic rice and non-transgenic rice by multivariate statistics method, and finds out compound with significant contribution to metabolic phenotype difference, to provide a basis for evaluation of unintended effect and safety of transgenic rice. The simple and rapid analysis method with good repeatability is suitable for batch analysis of practical samples.

A method for testing bolt joint surface contact damping characteristics is based on an experimental device of bolt joint surface contact damping characteristics. According to the method, as for testing of normal damping characteristics or testing of tangential damping characteristics, different setting is firstly performed; then, longitudinal periodical dynamic loads are applied to a lower test piece and an upper test piece; in the process of applying the periodical dynamic loads, a linear displacement sensor and a force sensor transmit a bolt joint surface linear displacement change signal and a periodical dynamic load signal to a data collection system respectively, and then the signals are output to a computer; and bolt joint surface linear displacement data and dynamic load data of the same period in the stabilization stage during the loading process are selected, the selected joint surface linear displacement data of one period are taken as an X axis, the dynamic load data of the same period are taken as a Y axis, a load-displacement curve is drawn, and the curve is a hysteresis loop which is used for representing the bolt joint surface contact damping characteristics.

The invention relates to an offshore wind turbine foundation full-time coupling fatigue analyzing method and system. The method includes utilizing SACS software to build an offshore wind turbine foundation and a tower model; outputting a foundation structure data file precede.$PJ; operating BLADED software to read the foundation structure data file precede.$PJ and conducting fatigue work condition load calculation; operating the SACS software to read fatigue load under various work conditions and calculated through the step C and corresponding spectrum parameters, calculating and accumulating fatigue damage under various work conditions and calculating the fatigue service life. The system comprises a modeling module, a model output and storage module, a fatigue work condition load calculation module and a fatigue service life calculation module. By means of the method and system, fatigue calculation and frequency domain and time domain analysis under wind wave flow full-time coupling and fatigue coupling analysis with fatigue load work conditions combined with spectrum curves can be conducted on an offshore wind turbine foundation.

The present invention aims to provide a method for determining vitamin A and E in animal-derived food. Specifically, the invention employs the solid phase extraction and high performance liquid chromatography coupling technique to establish an on-line solid phase extraction-high performance liquid chromatography analytical method for simultaneous determination of vitamin A and vitamin E in animal-derived food. Furthermore, the invention also provides an on-line solid phase extraction analysis system for the detection of vitamin A and vitamin E.

The invention discloses a method for analyzing a temperature gradient effect of a flat steel box girder of a long-span steel bridge. The structure of a steel box girder is a hexagonal flat steel box girder. The method comprises the following steps of: analyzing the sectional temperature gradient distribution of the steel box girder; acquiring a gradient curve of piecewise linear change of the maximum temperature along a vertical direction; and analyzing influence of temperature on stress and deformation of the steel box girder. The method is applicable to orthotropic flat steel box girders with or without a footway flange plate. The sectional temperature gradient distribution, the vertical gradient curve and a formula, which are acquired according to the method, are accordant with the distribution of sectional temperatures of the structure of the flat steel box girder at a sunlight temperature difference. By applied temperature gradient distribution which is acquired according to the method, the influence of temperature on stress and deformation can be analyzed. The research of the method is aided financially by national science and technology supporting planning projects 2009BAG15B03.

A determination method quantifies a specific protein or peptide contained in a trace amount with high accuracy and in a simple manner without the need of using any expensive reagent. A protein or peptide of interest can be quantified by LC / MS / MS by using, as an internal standard, a protein or peptide including an amino acid sequence having the reshuffling the binding order of amino acid residues in the amino acid sequence for the protein or peptide of interest.

The invention relates to a three-dimensional fluorescent spectrum identification method for Ningxia wolfberry. The identification method is characterized by comprising the following steps: 1) acquiring a correction set, namely selecting at least 10 dry wolfberry fruit samples produced in Ningxia and at least 10 dry wolfberry fruit samples produced in other places as a correction sample set, heating and drying all the correction samples, then cooling to room temperature, then pulverizing into powder by virtue of a pulverizing machine, sequentially acquiring three-dimensional fluorescent spectrum images of the wolfberry powder sample produced in Ningxia and the wolfberry powder sample produced in other places as a correction set for the wolfberrys produced in Ningxia and the wolfberrys produced in other places by adopting a fluorescent spectrometer with a three-dimensional fluorescent spectrum scanning function and a solid sample test accessory. Compared with the prior art, the analysis method provided by the invention is easy, rapid and reliable.

The invention provides a near infrared spectrum qualitative identification method of pearl powder and shell powder. The near infrared spectrum qualitative identification method comprises the following steps of firstly, collecting near infrared spectrograms of a plurality of pearl powder samples and a plurality of shell powder samples as a pearl powder correction set and a shell powder correction set; then, establishing a discrimination analysis model by virtue of near infrared spectrum analysis software for setting model parameters according to the correction sets, wherein optical length types are selected for multi-element signal correction, spectrum pre-treatment is performed by virtue of a second derivative, smoothness is performed by virtue of Norris derivative filtering, a correction spectrum region is in a range of 4100-9800 cm<1> and the like; and finally, by virtue of the near infrared spectrograms of the samples to be detected and the established discrimination analysis model, analyzing the mahalanobis distance between the near infrared spectrograms of the samples to be detected and the pearl powder correction set, and the mahalanobis distance between the near infrared spectrograms of the samples to be detected and the shell powder correction set, and automatically giving an identification result by the near infrared spectrum software. The near infrared spectrum qualitative identification method provided by the invention is simple, convenient, fast and reliable.

The invention discloses a method for determining the content of components in blended fiber and relates to the method for determining the blended fiber. The method comprises the following steps: acquiring near infrared spectrum data of the blended fiber and a detected pure fiber, and converting the obtained near infrared spectrum data into angle values between the blended fiber and the detected pure fiber; by selecting a modeled blended fiber sample as a correction set, selecting a blended fiber sample to be detected as a prediction set, taking the content of the detected pure fiber in the correction set as a dependent variable and taking a matrix consisting of the correction set and the angle value of the detected pure fiber as an independent variable, establishing a multi-variable regression model through a partial least squares method; substituting the angle values of the blended fiber to be detected and the detected pure fiber into the multi-variable regression model so as to obtain the relative content of the detected pure fiber in the blended fiber to be detected. During fiber detection, sample pretreatment is not needed, an experiment environment requirement is reduced, and an analysis method is simple, quick and accurate and is also can be used for determining the content of components to be detected in the blended fiber when the components of the blended fiber are undetermined.

The invention discloses a method for testing the water content of foamed asphalt, and relates to material testing or analysis with nuclear magnetic resonance. The water content of the foamed asphalt is measured by a nuclear magnetic resonance device. The method comprises the following steps: preparing a foamed asphalt test sample of which the water content is to be tested; setting a nuclear magnetic parameter of the nuclear magnetic resonance device; acquiring a nuclear magnetic resonance semaphore of each gram of asphalt from which impurities are removed; determining a relationship between the water content of a standard test sample and a nuclear magnetic resonance semaphore; acquiring a total nuclear magnetic resonance semaphore of the foamed asphalt test sample of which the water content is to be tested; acquiring the mass of foamed asphalt evaporation residues in the foamed asphalt test sample of which the water content is to be tested; calculating the water content of the foamed asphalt test sample of which the water content is to be tested. According to the method, the defect of incapability of a method in the prior art to measurement of the water content of the foamed asphalt and the defects of an industrial CT method, disclosed in CN103558236A, for testing the water distribution of an asphalt mixture are overcome.

The invention relates to a dried edamame quality evaluation model and a construction method. The dried edamame quality evaluation model comprises main physical and chemical indicators which test and influence the dried edamame quality, wherein a principle component analysis and correlation analysis method is adopted to screen core indicator parameters of the dried edamame quality evaluation, a principle component normalization method is adopted to determine the weight coefficient of the core indicators, the dried edamame quality evaluation model is constructed on the basis as: the quality score (Z)=1.12*a*+0.64*hardness-0.76*crispness- 0.87*soluble solid content+0.52*vitamin c content+0.35*output rate, and the quality level of dried edamame is effectively judged according to the model. The method is high in standardized degree, accurate, objective, simple, convenient and easy to operate in the actual operation.

The invention discloses a method for rapid detection of the residual mount of sulfanilamide in food. The method comprises the following steps: firstly enabling the sulfanilamide and fluorescamine to perform derivation reaction, further enriching derivative products by using cloud point extraction, adding a sample enrichment and a standard plate prepared from a sulfanilamide standard product on a thin layer silica gel plate, comparing the fluorescence intensities of the two under an ultraviolet lamp to judge the concentration range of the fluorescamine in a sample, and determining the residual amount of the sulfanilamide in the food, wherein a detection limit of the method is 0.08 micron g / mL. The method disclosed by the invention has the advantages of simplicity in operation, small using amount of organic solvent, high detection sensitivity, short detection time, strong specificity and capability of realizing effective separation from interfering substances, is a simple, convenient, fast and accurate analytical method, does not need large-scale instruments, only needs to configure small-scale instruments and equipment, and further has extensive application prospects.

The invention discloses a method for rapidly measuring a p-hydroxy-benzoate ester in cosmetics and relates to a method for measuring components in the cosmetics. The method comprises the following steps: A, treating a sample to be measured; B, establishing a background spectral database, namely B1, acquiring spectral data of a cosmetic sample; B2, acquiring spectral data of components to be measured; B3, converting the data format; B4, acquiring spectral data of a background which does not contain the components to be measured; B5, reducing the dimensionality of a background database; C, acquiring a standard spectral database v of the p-hydroxy-benzoate ester; D, measuring a spectrum of the cosmetic sample to be measured; E, measuring the content of the p-hydroxy-benzoate ester in the cosmetic sample to be measured. The method is high in analysis efficiency, low in operating strength and low in analysis cost, the background database which does not contain the measured components is not required to be accumulated, the machine hour and the reagent loss can be reduced, the robustness is high, and the method is simple and suitable for rapidly analyzing and measuring the same type of large-scale samples.

The invention relates to a method for preparing a real substance sample for authentication of a propolis liquid phase fingerprint. At present, the mature method for authenticating poplar gum and propolis is unavailable. The method comprises the processes of preparing a propolis substance sample and a poplar gum substance sample. The process of preparing the propolis substance sample comprises thefollowing steps of: soaking the propolis in 95 percent edible ethanol; drying the refined propolis liquid in vacuum in a water bath at the temperature of 80 to 95 DEG C; and mixing the crushed refined propolis and an excipient, and sieving the mixture with an 80-mesh sieve to obtain the propolis substance sample. The process of preparing the poplar gum substance sample comprises the following steps of: heating polar-water mixed liquid to over 90 DEG C; pressing the liquid to obtain a polar liquid; after cooking the polar liquid, soaking the polar liquid in the 95 percent edible ethanol; drying the refined polar gum liquid in vacuum in the water bath at the temperature of 80 to 95 DEG C; and mixing the crushed refined polar gum liquid and the excipient, and sieving the mixture with the 80-mesh sieve to obtain the poplar gum substance sample. The method has the advantages of reasonable and scientific preparation, strong operability and application to effective authentication of the false propolis prepared from polar sprouts.

The invention discloses a method for detecting a Simotang preparation. The method is characterized in that: high performance liquid chromatography detection is carried out on a test sample of the Simotang preparation, and a chromatographic condition is selected from one of the following two modes: a mode 1 is characterized in that: the chromatographic column is a strongly cationic exchange chromatographic column, the mobile phase comprises methanol and an aqueous solution with a volume percentage of 0.2% and a pH value of 3.8 according to a volume ratio of 40-80:60-20, and the detection wavelength is 215nm; and a mode 2 is characterized in that: the chromatographic column is an octadecylsilane bonded silica gel column, the mobile phase comprises methanol and an aqueous solution of SDS and with a mass percentage of 0.1% according to a volume ratio of 50:50, the flow velocity is in a gradient mode, and the detection wavelength is 230nm. The method of the invention, which allows three alkaloid components of arecolidine, synephrine and norisobolidine in the Simotang preparation to be simultaneously determined, the resolution of chromatographic peaks, a theoretic stage number, a symmetry factor, and the peak purity obtained through the method to be good, and a linear relation between the concentration and the peak area to be good in a large concentration range, has the advantages of excellent precision, repeatability and accuracy.

The present invention relates to a method and apparatus used for measuring the absorbing amount of an organic solvent volatile gas in an ionic liquid. Said apparatus comprises an evaporator used for a natural evaporation of an organic solvent and an absorber used for adsorbing natural volatile gases of a variety of organic solvents utilizing an ionic liquid as an absorbing agent to achieve the intention that an ionic liquid is used as an absorbing agent to remove organic solvents in industrial waste gas. A weighing method is utilized to perform detections, then the transient absorbing capacity and saturated absorbing capacity of an organic volatile gas in an ionic liquid are got through the mass difference after and before the absorption by the absorbing agent. The channel valve adopts a rotary switch type valve, which is capable of both increasing the flux and decreasing the valve weight at the same time to ensure the weighing precision. The absorber is equipped with a magnetic stirring therein and the adsorbing process is a deep absorption.

To quick and accurately predict filling behavior at the time of injecting resin of thermosets molded articles having a complex obstacle. A model creation portion includes a space / obstacle separation model creation portion and a space / obstacle combination model creation portion. The space / obstacle combination model creation portion handles, as porous media, an obstacle in which narrow spaces are regularly arranged. A thermosets flow analysis portion includes a space / obstacle separation analysis portion and a space / obstacle combination analysis portion, and each of them has a viscosity equation for thermosets. The space / obstacle separation analysis portion analyzes by combining the viscosity equation with conservation equations of mass, momentum and energy, and the space / obstacle combination analysis portion analyzes by combining the viscosity equation with a conservation equation directed to a shape simplified as porous media. Resin flow behavior is analyzed while data in an interface between a space / obstacle separation model and a space / obstacle combination model is delivered to each other.

A method of analyzing data link messages is disclosed. These messages include a message type field and at least one message content field whose meaning is determined by the message type. The method includes storing the plurality of data link messages in a database. The method also includes assigning each data link message to one or more message groups according to the message type field so that each group contains data link messages of a specific message type. In addition, the method includes tabulating the messages so as to align corresponding message content fields, displaying the tabulated messages so that the corresponding message content fields are aligned; and displaying a list of the field contents for each message content field. The displayed list is filtered to remove repeated incidence of the same content, within each of the message groups.

The invention discloses a quick classification and identification method for Ganpu tea (orange pu-erh tea). The method comprises the following steps of measuring characteristic volatile organic compounds in different standard samples by using a gas-phase ion migration analysis method, to acquire response strength data of flavor compounds of different types of standard samples; clustering the response strength data of the standard samples by using a statistical analysis method, and building a classification and identification model; measuring the characteristic volatile organic compound in an unknown sample by using the gas-phase ion migration analysis method having the same parameter with the previous step, thus acquiring a sample fingerprint spectrum, and putting the sample fingerprint spectrum into the classification and identification model acquired in the previous step for analysis, so as to judge the category and authenticity of the sample. According to the method provided by theinvention, the flavor quality is quantified and standardized, and the classification and identification model is built, so that the Ganpu tea can be quickly, objectively and accurately assessed, the standardization of the quality of the Ganpu tea can be effectively ensured, the product quality and market competitiveness can be improved, and the blank that sensory analysis cannot be accurate and standard is filled.