51results about How to "Method objective" patented technology

The invention relates to a noninvasive detection method for screening healthily grown blastulas. The method comprises the following steps: the DNA methylation profile of a small amount of trophoblastic cells in the blastulas is detected, the methylation level mean and the methylation pattern of embryos with good morphology in a Gardner morphological blastocyst grading process are adopted as healthily grown blastula screening standards, and embryos well grow and are suitable for being implanted to a maternal when the methylation level of the trophoblastic cells of the blastulas to be detected approaches the methylation level or state of the good blastulas; and a methylation sequencing result is analyzed to judge that whether a chromosome is abnormal or not in order to directly reject chromosome-abnormal embryos. The method makes transplantation of embryos with normal ploidy and excellent apparent genetic maps be clinically realized, greatly improves the accuracy of an assisted reproduction technology, is in favor of reducing the natural abortion rate, improves the pregnancy quality and improves the birth rate of test tube babies.

The invention discloses a quantitative analysis method for interfacial tension performance of a petroleum crude oil ternary compound system and a determination method of the ternary compound system. The method comprises the following steps: adding reference oil into a prepared to-be-measured ternary compound system, measuring various parameters of interfacial tension by utilizing an interfacial tension meter so as to calculate an interfacial tension value, drawing a curve of the interfacial tension value along with time change, and finding the lowest interfacial tension value sigma<min> in the curve and the corresponding ultra-low interfacial tension action time delta t so as to obtain an incidence relation among the interfacial tension performance parameters, the lowest interfacial tension value and the ultra-low interfacial tension action time, wherein the incidence relation is used for analyzing the interfacial tension performance of the ternary compound system; and obtaining the oil displacement efficiency through the interfacial tension performance indexes, and determining the ternary compound system. According to the method, the interfacial tension performance of the ternary compound system is comprehensively analyzed in a quantitative mode, guidance is quantitatively provided for determination of the ternary compound system, and the method is simple in process, objective and scientific in result and high in repeatability.

The invention discloses a method for rapidly identifying Pu'er tea of ​​different storage years based on taste information. The method for identifying the storage year of the Pu'er tea of ​​the present invention is to use a sensor-type electronic tongue at room temperature to detect the taste information of the Pu'er tea of ​​different storage years, so as to realize the identification of the storage year of the Pu'er tea. The identification method provided by the invention has simple pretreatment of samples; no organic solvent in the whole experimental process, high safety; fast detection speed; high identification accuracy, and the instrument can operate continuously, which is more suitable for continuous and real-time detection, and is convenient for large-scale promotion application. The invention is easy to operate, realizes rapid qualitative and quantitative analysis of Pu'er tea with different storage years by using taste information as an index, and provides a novel, objective and accurate method for identifying the age of Pu'er tea.

The invention provides a test method for efficacy of duck hemorrhagic ovaritis inactivated vaccine. The method comprises steps of: immunizing ducks using the duck hemorrhagic ovaritis inactivated vaccine for two times, wherein the second immunization is carried out two weeks after the first immunization; challenging the immunized ducks with duck hemorrhagic ovaritis virus three to five weeks after the second immunization; collecting duck serum after the challenge; inoculating the isolated serum into SPF chicken eggs or duck eggs; and calculating the number of eggs which die within 24-168 hours and are tested positive for the duck hemorrhagic ovaritis virus, wherein if the positive incidence of the isolated virus is more than 80% in contrast group ducks while the negative incidence of the isolated virus is more than 70% in the immunized group ducks, the vaccine efficacy is determined to pass the test. The test method for efficacy of duck hemorrhagic ovaritis inactivated vaccine of the invention has the advantages of simple in operation and accurate in test results, and thereby can be wildly used.

The invention discloses a method for evaluating the credibility of a complex simulation system based on a network topology path, belonging to the field of system simulation. Under the condition that the reliability of a single model node is known, the reliability of the entire complex simulation system is quantified. Firstly, the information interaction relationship between component models in the complex simulation system is analyzed, and the weight of the edges between nodes is calculated according to objective indicators, and the complex simulation system is abstracted into a directed and authoritative model interaction network. Calculate the out-degree of each node in the model interaction network, select the node with a larger out-degree as the initial node, start from the initial node, obtain different single execution paths, and calculate the credibility of the single execution path, and integrate all execution paths The credibility of the path can be used to obtain the credibility of the simulation system. The invention solves the problem that it is difficult to quantitatively analyze the reliability evaluation of a complex equipment simulation system characterized by complex mechanisms, complex input and output variables, and strong uncertainty.

The invention relates to a public transformer station area line loss rate abnormity reason detection method and system. The method comprises steps that basic source data of a public transformer station area with line loss rate abnormity is acquired from a distribution network production system, an automatic metering system and a marketing system; one or more of the following items is analyzed for the public transformer station area with line loss rate abnormity according to the basic source data, including metering monitoring abnormity analysis, load rate analysis, power factor analysis, user CT saturation analysis, three-phase imbalance analysis and electricity stealing reason analysis; abnormity reasons of the public transformer station area with line loss rate abnormity are displayed on a display interface according to an analysis result. The method is advantaged in that through collecting data sources of the distribution network production system, the automatic metering system and the marketing system, the line loss rate abnormity reasons are analyzed and positioned through multiple analysis methods, the method is objective and real, line loss management personnel is efficiently facilitated to carry out more accurate abnormity determination, and thereby a line loss management lean level is improved.

The invention relates to a data-free small reservoir parameter identification method combining hydrological simulation and continuous remote sensing images. The method comprises the following steps: step 1, determining a data-free small reservoir area and an upstream basin range; step 2, reservoir discharge parameters and a discharge curve are determined; step 3, verifying the reservoir dischargeparameters and the discharge curve; and step 4, identifying the reservoir operation mode. The data-free small reservoir parameter identification method provided by the invention not only identifies the reservoir area range and the weir crest elevation, but also provides a reservoir discharge parameter and discharge curve determination and verification method, thereby identifying the reservoir operation mode, and providing technical support for small reservoir flood discharge and small basin flood control in a data-free area.