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36 results about "Correlational study" patented technology

Correlational Study Definition. A correlational study is a scientific study in which a. researcher investigates associations between variables and none. of the variables are manipulated. Correlation Coefficient. A correlation coefficient may be calculated.

Desert plant remote sensing identification method using object-oriented multi-source information fusion

ActiveCN107392133AGuaranteed not to be separatedImprove segmentationScene recognitionAridImage segmentation
The invention relates to a desert plant remote sensing identification method using object-oriented multi-source information fusion. The method comprises the following five units: a large-area multi-source information inlay unit, an object-oriented image segmentation unit, a multi-source information fusion unit, an interpretation rule making unit and a desert plant identification unit. In the prior art, the following conditions that desert plant distribution is sparse; growth spectrum information is weak; desert plants are easily influenced by diffuse reflection; and phenomena of a mixed pixel and a same object with different spectrums are remarkable are not considered. Aiming at the above problems, the desert plant remote sensing identification method using the object-oriented multi-source information fusion is researched and developed so that problems that desert plant types and space-time distribution can not be accurately identified in fields of ecological remediation, a climatic change, a biological diversity, genetic development, poverty elimination and the like can be solved. A technical support is provided for a correlation research mechanism, a commonweal organization, an enterprise and a government. A data analysis basis is provided for exploitation, construction and management of a desert plant industry in an arid region.
Owner:XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI

Electroencephalogram signal processing method based on DIVA model

The invention discloses an electroencephalogram signal processing method based on a DIVA model. According to the electroencephalogram signal processing method, fMIR data generated through the DIVA model in a simulating mode are used for carrying out positioning analysis on electroencephalogram signals, the complexity of actual computing is simplified through an independent component analysis method, and the defects that non-intrusive electroencephalogram signals are low in resolution ratio and high in interference are overcome. The fMIR data generated through the DIVA model are used for carrying out fusion processing on electroencephalogram data, and the problems that the electroencephalogram signals are low in space resolution ratio, high in signal interference and low in signal-noise ratio are resolved greatly. Through the pre-processing of ICA, the computing complexity is reduced, and the sensitivity of an equivalent dipole positioning algorithm to the noise is overcome greatly. Finally, the electroencephalogram signal processing method is used for processing actual experiment data, and the obtained conclusion meets the physiology reality. A feasible resolution scheme is provided for the electroencephalogram signal processing problem in a Chinese nerve analysis system, and a foundation is laid for the research related to generation and obtaining of Chinese phonetic symbols in future.
Owner:西安慧脑智能科技有限公司

Physical property measurement system and method for material based on probe force curve

The invention discloses a physical property measurement system and a method for a material based on an AFM (atomic force microscope) probe force curve. According to the method, a high-speed and high-precision digital acquisition card and a digital controller are adopted to realize broad-band and high-resolution measurement during a probe force curve testing process. Therefore, a peak force in the probe force curve can be controlled and measured precisely. On the basis of acquiring the force curve, a Hertz contact model and a Derjaguin-Muller-Toporov (DMT) model are used for acquiring appearance information of the surface of a sample, and a power dissipation and force curve area integral method is used for acquiring a viscous force and dissipated energy information of the sample. According to the system and the method, a large amount of information reflecting physical properties of the surface of the sample is included. The application scope of an AFM is expanded greatly, the development of correlational study fields is promoted, and the system and the method have very important scientific values and good application prospects.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI

Systems and methods for real time diagnostic and data correlation utilizing a computer network

The present invention relates to systems and methods for real time diagnostic and data correlation utilizing a computer network. One embodiment of the present invention relates to a method for interfacing a health monitoring system with an on-line medical information site to provide real-time diagnostics and or updated research data correlation. The method includes measuring and recording at least two health related values, compiling the at least two health related values into a format consistent with an online medical information database, and transmitting the compiled versions of the at least two health related values to an online medical information database. The method may further include receiving real time diagnostics from a medical professional. The method may also include receiving updated medical research data corresponding to the transmitted values. An alternative embodiment of the present invention relates to a system for providing real time remote diagnostic and correlated research data. The system includes a medical monitoring system configured to measure at least two health related values, a remote medical database which is accessible by diagnostic medical professionals and which contains updated medical research data, and a communication link between the medical monitoring system and the remote medical database.
Owner:PENG ROBIN

Brown planthopper VgR polypeptide and multi-resistant preparation method thereof

The invention discloses a brown planthopper VgR polypeptide and multi-resistant preparation method thereof. The amino acid sequence of VRG polypeptide is RKGNADQSVATKSD, the preparation method for polyclonal antibody comprises the following steps: (1) performing epitope analysis on brown planthopper VRG protein antigen; (2) designing and analyzing brown planthopper VgR; (3) crosslinking synthetic peptide and carrier protein; (4) preparing rabbit antibody brown planthopper VgR polypeptide antibody; (5) collecting, separating to obtain serum containing antibody, purifying antibody to obtain the antibody of brown planthopper VgR polypeptide. The brown planthopper VgR polypeptide polyclonal antibody is good in specificity, and high in purity, has specific binding reaction with the brown planthopper VgR protein and is used for performing correlation research for brown planthopper VgR protein, such as analysis of character, function, expression profile and content.
Owner:CHINA JILIANG UNIV

Method for measuring stability of membrane protein in lipidic cubic sample through spectroscopy

InactiveCN103115885ARealize direct measurementReasonable designPreparing sample for investigationColor/spectral properties measurementsMembrane protein stabilityProtein target
The invention relates to a method for measuring the stability of a membrane protein in a lipidic cubic sample through spectroscopy. The method comprises the following steps of: uniformly mixing a purified target protein into the lipidic cubic sample, and then carrying out a gradient heating/cooling process with temperature increased step by step on the lipidic cubic sample; cooling the lipidic cubic sample again and centrifugalizing the lipidic cubic sample at a high speed to ensure that water molecules enter the lipidic cubic sample again and the lipidic cubic sample is at a colorless and transparent state again when the lipidic cubic sample becomes turbid as water molecules are separated out of the lipidic cubic sample at every step of temperature rise; and then identifying the stability of the target protein by acquiring fluorescent signals of the lipidic cubic sample. The method disclosed by the invention is reasonable in design and high in operability, can realize that the stability of the protein can be directly measured in the lipidic cubic sample, and provides the data and theory support for subsequent crystal and correlational research; and a gene applied to the method disclosed by the invention can also provide the support for control research on various classified micromolecules.
Owner:连云港脂立方生物医药研究所有限公司

Isolation in vitro and amplification method for adult rat heart microvascular endothelial cell

The invention relates to a method for separating and expanding cardiac microvascular endothelial cells of adult rat vitro, which provides an ideal cell model for the correlational studies of cardiac endothelial function and a complementary source of vascular neogenesis treatment and tissue engineering cells after myocardial infarction, and lays foundation for deeply studying the clinical treatment of myocardial infarction, angiocarpy endothelial dysfunction, etc. The method adopts the technical proposal that (1) by utilizing the biological characteristics of the cardiac microvascular endothelial cells, the cardiac microvascular endothelial cells of the adult rat are separated and enriched by adopting a method of enzymic digestion, and are expanded by utilizing the self-renewing and proliferation characteristics of the endothelial cells, thus obtaining a great deal of cardiac microvascular endothelial cells; (2) the separated cells are separated and purified vitro; (3) the separated cells are purified and expanded vitro.
Owner:FOURTH MILITARY MEDICAL UNIVERSITY

Method for analyzing content of Abeta plaque imaging agent precursor AV-45-OTS through micellar electrokinetic chromatography

The invention discloses a method for analyzing the content of Abeta plaque imaging agent precursor AV-45-OTS through micellar electrokinetic chromatography and belongs to the technical field of analytical chemistry. The content of the AV-45-OTS can be easily and conveniently measured through a capillary electrophoresis method. An effective analysis means is provided for controlling the quality of a drug box, which is not reported in correlational research. 1 mg of the AV-45-OTS is precisely weighed and dissolved in 0.5 mL of chromatographic pure tetrahydrofuran and 1.5 ml of 25 mmol/L borax-10 mmol/L SDS solution, sample injection at the voltage of 10 kv is performed, the voltage is kept unchanged, the sample injection time is changed, linear regression is performed on the sample injection time at the peak area, the linear relation is good when the sample injection time is 8-16 s, the regression equation is y=112958x-525878, and the correlation coefficient r2 is equal to 0.9909. Compared with HPLC, the micellar electrokinetic chromatography has the main advantages that separation efficiency is high, the efficiency can be 500,000 theoretical plate number/m and is ten times that of the HPLC; the micellar electrokinetic chromatography has other advantages that speed is high, the quantity of samples in use is small, consumption of reagents is small, and running cost can be reduced.
Owner:JIANGSU INST OF NUCLEAR MEDICINE

Approximate evaluation method for uncertain time-delay on basis of H-infinity principle and application of approximate evaluation method

The invention discloses an approximate evaluation method for uncertain time-delay on the basis of an H-infinity principle. The approximate evaluation method comprises the following steps: constructinga mathematical model of stable performance indexes of a feedback control system on the basis of the H-infinity principle and a mathematical model of a feedback control system with uncertain time-delay; analyzing influence of the uncertain time-delay to the stable performance indexes of the feedback control system, and scaling the mathematical model of the stable performance indexes into a feedback control system stabilizing condition with time delay correlation term; and based on a Pade approximation method, constructing a rational approximate function related to the time delay correlation term, setting a target constraining condition for the rational approximate function capable of replacing the time delay correlation term, and replacing the time delay correlation term by using the rational approximate function which meets a target constraint condition so as to obtain the stable performance indexes of the feedback control system. By the method, a rational estimation function which isefficient and has high degree of fitting can be provided; and the method can be widely applied to the feedback control system with uncertain time-delay and engineering related research problems.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

A method for processing EEG signals based on the diva model

The invention discloses an electroencephalogram signal processing method based on a DIVA model. According to the electroencephalogram signal processing method, fMIR data generated through the DIVA model in a simulating mode are used for carrying out positioning analysis on electroencephalogram signals, the complexity of actual computing is simplified through an independent component analysis method, and the defects that non-intrusive electroencephalogram signals are low in resolution ratio and high in interference are overcome. The fMIR data generated through the DIVA model are used for carrying out fusion processing on electroencephalogram data, and the problems that the electroencephalogram signals are low in space resolution ratio, high in signal interference and low in signal-noise ratio are resolved greatly. Through the pre-processing of ICA, the computing complexity is reduced, and the sensitivity of an equivalent dipole positioning algorithm to the noise is overcome greatly. Finally, the electroencephalogram signal processing method is used for processing actual experiment data, and the obtained conclusion meets the physiology reality. A feasible resolution scheme is provided for the electroencephalogram signal processing problem in a Chinese nerve analysis system, and a foundation is laid for the research related to generation and obtaining of Chinese phonetic symbols in future.
Owner:西安慧脑智能科技有限公司

Chromosome and karyotype analysis method taking pitaya stem tip as material

The invention relates to a chromosome and karyotype analysis method taking pitaya stem tips as materials. Specifically, the young and tender stem tips of the pitaya are used as experimental materials, and chromosome morphology observation and research are carried out by utilizing the characteristic that the young and tender stem tips have meristematic region tissue cells with exuberant division. The method comprises the following steps that healthy and tender pitaya stem tips are cut off and then dissected; putting the dissected stem tips into a mixed solution of colchicine and 8-hydroxyquinoline, and carrying out chromosome concentration; soaking the stem tips with KCl; the stem tips are refrigerated and fixed with stationary liquid; cleaning the fixed root tips, and dissociating the root tips in HCl; the dissociated stem tips are cleaned and put into a mixed solution of cellulase and pectinase to be subjected to enzymolysis; cleaning the stem tips subjected to enzymolysis, and putting the cleaned stem tips into double distilled water for post-hypotonic treatment; putting the post-hypotonic stem tips into a stationary liquid for refrigeration treatment; and placing the stem tip on a glass slide, cutting, dyeing, and preparing a sheet for microscopic examination. The problems that the aerial roots of the pitaya are difficult to draw, the root tips of the pitaya are difficult to draw, the plants are damaged, and the experimental effect is unstable are solved. According to the method, the pitaya stem tips serve as materials for the first time, karyotype analysis of the pitaya chromosomes is achieved, and more convenient and stable technical support is provided for correlational researches such as karyotype research of the pitaya chromosomes and ploidy identification of germplasm resources.
Owner:HAINAN UNIVERSITY

Extrusion casting process parameter design method of improved KNN algorithm based on similarity principle

The invention provides an extrusion casting process parameter design method of an improved KNN algorithm based on a similarity principle, and belongs to the technical field of process parameter design, and the process parameter design method comprises the following steps: firstly, measuring the relative change trend of related variables of process parameters based on the similarity principle; on the basis, sample data similar to the relative change trend of related variables of the target case are extracted, KNN clustering is carried out based on the sample data, and weighted regression is carried out on corresponding parameters in clustered samples to serve as technological parameter design values of the target case. According to the design method, based on existing research data, existing related research results are fully referred and utilized, tedious experimental research is not needed, and the design precision of technological parameters is high. Compared with an existing process parameter design method, a large amount of time cost and experiment cost are saved. The method has universality, and is not only suitable for design of extrusion casting process parameters, but also suitable for parameter design in other similar fields.
Owner:GUANGXI UNIV

Doctor-patient trust construction system and construction method based on four-quadrant model

The invention discloses a doctor-patient trust construction system and method based on a four-quadrant model, relates to the field of four-quadrant model analysis, and aims to solve the problems that an existing doctor-patient trust construction system and method are one-sided and poor in difference adjustment information accuracy. According to the scheme, the system comprises a research method determination module, a research result analysis module and a summarization module, the research method determination module is connected with the research result analysis module, and the research result analysis module is connected with the summarization module. According to the method, the total Cronback's alpha reliability coefficient of the scale is 0.912; the bisection reliability R is 0.863 and 0.932; the content validity Pearson correlation coefficient ranges from 0.38 to 0.81, statistical significance is achieved, the structural validity RMR is 0.065, the RMSEA is 0.073, the x2 / df is 2.236, the GFI is 0.791, and a'four-quadrant model 'doctor-patient trust measurement scale has good reliability and validity and can be used in relevant research of doctor-patient trust in China.
Owner:唐山市第二医院

Method for culturing and establishing extracorporeal hypospadias model by utilizing genital tubercle organ

The invention discloses a method for culturing and establishing an extracorporeal hypospadias model by utilizing a genital tubercle organ and the extracorporeal hypospadias model cultured by the method. The method uses estrogen to intervene genital tubercle cultured in vitro; the pathology expression of the model is the same as the expression of the animal model of mouse hypospadias which is recognized currently; the growth of the genital tubercle is restrained obviously; the whole urethra is still a solid sex cell cord, the tube of urethra is not obvious, epitheliogenesis is unhealthy, and the arrangement is disorder. The construction of the model is characterized by avoiding the problems of high cost of animal experiments, long experiment period and easily-influenced research results by the in-vivo nerve-internal secretion factors in the correlational research process of urethra development. The model has high molding success rate, good repeatability, and high application value and is worth popularizing.
Owner:SHANGHAI NINTH PEOPLES HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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