Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

52 results about "Population sample" patented technology

Population Sampling Techniques Population sampling is the process of taking a subset of subjects that is representative of the entire population. Population sampling is the process of taking a subset of subjects that is representative of the entire population. The sample must have sufficient size to warrant statistical analysis.

Composite adaptive internal model control optimizing method based on efficient improved type differential evolution algorithm

ActiveCN108121206AImprove real-time performanceIdeal Differential Evolution Optimizing Identification EffectAdaptive controlPopulation sampleAutomatic control
The invention relates to a composite adaptive internal model control optimizing method based on an efficient improved type differential evolution algorithm, and belongs to the technical field of automatic control. A good global optimizing function can be maintained under the conditions of fewer population samples and smaller maximal iteration times, and the optimized identification parameters of asystem inverse model are searched, so that adaptive internal model control optimized parameters are efficiently acquired. A non-linear pneumatic elastic vibration control system is subjected to a simulation experiment by the composite adaptive internal model control optimizing method provided by the invention; the experiment result indicates that compared with the composite adaptive internal model control based on the conventional differential evolution algorithm, the composite adaptive internal model control optimizing method based on the efficient improved type differential evolution algorithm has the advantages of high optimizing efficiency, low calculation cost, small optimizing control overshoot and the like, and is a composite adaptive internal model control optimizing method with popularization value.
Owner:YANGZHOU UNIV

Method for identifying artificial release population and a natural wild population of salmon

The invention discloses a method for identifying an artificial release population and a natural wild population of salmon, comprising the following steps of: sample pretreatment, electronic microprobeanalysis, data analysis and population discrimination. The method comprises the steps of collecting regression population samples of the salmon, selecting sagitta to carry out otolith microchemical analysis, carrying out quantitative line analysis on the sagitta by adopting an electronic microprobe technology, and calculating Rf1, RL and RC values of salmon otolith as the main judgment basis, verifying and checking the regression population of the salmon according to the method. The discriminant success reaches 100%. In addition, the artificial propagation population and the natural population can be effectively identified based on the difference between the current cultivation process of the released salmon fry and the wild hatching conditions of the natural population salmon, and additional mark on the released salmon fry is not required, so that the artificial propagation population and the natural population can be effectively identified, the limitation of the condition of the salmon marking work can be overcome, and the damage of the marking work to the salmon body can be avoided.
Owner:HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI

Molecular detection method of resistance of diamond back moth against avermectin target

The present invention discloses a molecular detection method of resistance of diamond back moth against an avermectin target. According to the method, a specific primer designed according a diamond back moth glutamate chloride ion channel gene sequence is used, extracted diamond back moth single-head genomic DNA is used as a template for PCR amplification of glutamate chloride ion channel gene fragments, diamond back moth individual genotypes (sensitive homozygote SS, resistant heterozygote RS and resistant homozygote RR) can be distinguished by analysis of a target fragment purified product direct sequencing chromatogram, and population sample resistance allele mutation frequency can be detected. A detection method of diamond back moth glutamate chloride ion channel gene A309V mutation and a special primer sequence are disclosed, and the method has the advantages of being simple, rapid and high in accuracy, can be used to monitor the occurrence and development trend of allele frequency of the resistance of a diamond back moth field population against avermectin and drug resistance, and provides an important basis for adjustment of diamond back moth chemical control strategies and formulation of measures to delay the development of resistance.
Owner:NANJING AGRICULTURAL UNIVERSITY

Rock foundation pit blasting parameter dynamic regulation and control method

The invention discloses a rock foundation pit blasting parameter dynamic regulation and control method. The method comprises steps of establishing a nonlinear mapping relationship between an input vector and an output vector by using a GP machine learning method; taking the optimal hyper-parameter in the GP as a population sample in the DE algorithm, searching each optimal hyper-parameter of the GP through variation, intersection and selection in the DE process by means of the optimization capability of DE, optimizing the GP model, and improving the prediction capability of the GP model, thereby predicting an output value closer to an optimal solution. Furthermore, the optimal output value of the prediction result of the GP model and the mean square error between the output value and the control value are used as the fitness function of DE, and the prediction capability of the GP model is improved by optimizing the sample population and gradually approaching the optimal solution, so that the target vector closer to the optimal solution is predicted. According to the method, a Gaussian-differential evolution algorithm (GP-DE) blasting intelligent optimization algorithm is introducedon the basis of blasting monitoring data analysis to quickly and effectively optimize the blasting parameters, so that the construction process is ensured to be carried out safely.
Owner:DALIAN MARITIME UNIVERSITY

Molecular cloning of meat quality trait related gene Prox1 (Prospero-related homeobox protein 1) of pigs and application

The invention belongs to the field of a domestic animal molecular biotechnology and genetic breeding and discloses molecular cloning of a meat quality trait related gene Prox1 of pigs and application.A full-length cDNA (complementary Deoxyribonucleic Acid) sequence of a pig Prox1 (Prospero-related homeobox protein 1) gene is cloned by utilizing a RACE technology, the full length of the sequence is 3683 bp and sequence characteristics are shown as SEQ ID NO: 4. A dual-luciferase activity analysis technology is used for determining an active region of a pig Prox1 gene promoter region and a positive regulation and control element with influences on the activity of a promoter exists in a -1182/-1957 bp region; negative regulation and control elements with the influences on the activity of thepromoter exist in a -1182/-682 bp region, a -682/-192 bp region and a -192 to +122 bp region. A population sample expression mode shows that the pig Prox1 gene is a gene which is remarkably related to meat colors and can be used as a marker gene for grading the meat colors. Furthermore, 18 hereditary variation sites are identified in a pig Prox1 gene promoter sequence and the invention proves that three hereditary variation sites which are completely interlocked are remarkably related with the pH (Potential of Hydrogen) trait of pork and can be used as an important molecular marker for production trait assisted breeding of pigs.
Owner:NANJING AGRICULTURAL UNIVERSITY

Morphology-based sebastiscus marmoratus group identification method

The invention provides a morphology-based sebastiscus marmoratus population identification method, belongs to the field of germplasm identification, and comprises the following steps: providing a population sample of sebastiscus marmoratus; providing a living body preservation method for the Sebastiscus marmoratus sample; measuring and analyzing morphological indexes of the population samples of the sebastiscus marmoratus to obtain population information; the living body preservation method of the sebastiscus marmoratus sample comprises the step of enabling a fish body to be in contact with avitreous matrix solution embedded with at least one antioxidant active polysaccharide. The identification method provided by the invention is high in objectivity and identification accuracy, small inmeasurement value error, low in measurement difficulty and transportation difficulty, and low in loss and cost; according to the method, the living body valid period of the living body fish can be prolonged, high vitality can still be kept in the environment with the high or low transportation temperature, external mechanical pressure and damage are buffered, the fish body structure protection ishigh, the death rate of the living body fish is low, during measurement, mucus on the body surface of the fish body is rapidly removed, mucus is not continuously released, and system errors are reduced.
Owner:ZHEJIANG OCEAN UNIV

Tumor risk multiple calculation method and system based on blood examination indexes

InactiveCN113643812AInnovative model of tumor risk early warningHealth-index calculationPopulation sampleDisease
The invention discloses a tumor risk multiple calculation method and system based on a blood examination index, and belongs to the field of medical data processing. The system comprises a data obtaining module, which is used for obtaining a blood routine laboratory sheet picture, a blood biochemical laboratory sheet picture and a tumor marker laboratory sheet picture, identifying detection indexes, age and gender in the blood routine test sheet picture, the blood biochemical test sheet picture and the tumor marker test sheet picture, or directly importing related data from electronic data; and a tumor risk multiple calculation module, which is used for predicting the increase multiple of the tumor disease risk of the to-be-detected person relative to the average crowd risk, wherein the calculation process of the tumor risk multiple calculation module comprises the steps that classified learning samples are established for non-tumor people and tumor disease people, the learning samples are used for training a tumor disease risk model, the tumor disease risk model is used for an average population sample to calculate an average population tumor disease risk value, and the tumor risk value of the to-be-detected person is divided by the average group tumor risk value to obtain a tumor risk increasing multiple. The tumor risk multiple is predicted by using blood routine examination, blood biochemistry and tumor marker detection indexes, and a tumor risk early warning mode is innovated.
Owner:季凯 +1

Method for training neural network based on genetic algorithm to control game role behaviors

The invention discloses a method for training a neural network to control game role behaviors based on a genetic algorithm. According to the method, necessary input information is obtained from each frame in a game engine through population samples; behavior input information is obtained through a neural network; the samples and the environment are interacted to update a fitness function, after acertain time, the population samples are divided into two sample populations according to a certain proportion and multiplied in two modes respectively, progenies of the two populations are combined into one population, and the population more adapting to the environment is obtained along with ceaseless training. According to the method, the neural network is used for processing environment input;more comprehensive information can be obtained; compared with the prior art, the method is more flexible in action without behavior pattern limitation, action strategy optimization can be automatically carried out according to actions of players in the actual application process, the genetic algorithm used in the method enables the search range to be wider, the sample diversity is increased, andthe used multi-genetic strategy makes up for the defect that local optimum is likely to enter too early to a certain extent.
Owner:ZHEJIANG UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products