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

112 results about "Response factor" patented technology

Response factor, usually in chromatography and spectroscopy, is the ratio between a signal produced by an analyte, and the quantity of analyte which produces the signal. Ideally, and for easy computation, this ratio is unity (one). In real-world scenarios, this is often not the case.

Three-dimensional human head point cloud feature extraction method and device thereof

The invention discloses a three-dimensional human head point cloud feature extraction method and a device thereof. The method comprises steps that 1, point cloud data pre-processing, sampling, outlier removal and noise removal are included; 2, training stage, a normal and an FPFH (fast point feature histogram) value of each point are calculated, and a K-dimensional tree is established; 3, FPFH values of three typical feature portions are segmented and extracted from a given model; 4, searching is carried on the K-dimensional tree established in the step 2, and a candidate set is searched; and 5, a principal curvature of each point of the candidate set and a shape response factor are calculated, a feature point is finally determined according to profiles of the three typical features and the position of a nose tip. Through the method, sensitivity to illumination and angles during two-dimensional feature extraction in the prior art is overcome, training of the large-scale data is not required, and rapid and accurate extraction of the three typical human head features is realized, and typical features of the nose tip, a left auditory meatus and a right auditory meatus can be extracted on the basis of the three-dimensional human head point cloud data.
Owner:CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST

Method for detecting content of short-chain or medium-chain chlorinated paraffin in paint

The invention discloses a method for detecting content of short-chain or medium-chain chlorinated paraffin in a paint. The method comprises the following steps: extracting the short-chain or medium-chain chlorinated paraffin in the paint, detecting with a gas chromatography-negative chemical ionization source mass spectrometry detector, using the internal standard method, performing linear association on a total response factor of a short-chain or medium-chain chlorinated paraffin standard sample on the NCI (negative chemical ionization) mass spectrometry detector with the chlorine content of a short-chain or medium-chain chlorinated paraffin standard solution, detecting the actually measured chlorine content of the sample by the gas chromatography-negative chemical ionization source mass spectrometry detector, corresponding the actually measured chlorine content with the a liner reaction expression of the total response factor and the chlorine content of the short-chain or medium-chain, to obtain the total response factor of the sample, and thus obtaining the content of the short-chain or medium-chain chlorinated paraffin in the paint. The analysis method disclosed by the invention is exact and fast, has small interfering, and can perform optimal separation and qualitative and quantitative detections on each component in the sample.
Owner:GUANGDONG TESTING INST OF PROD QUALITY SUPERVISION

A modeling method and system for evaluating aggregation frequency modulation performance of a distributed energy storage system

The present invention provides a modeling method and system for evaluating aggregation frequency modulation performance of a distributed energy storage system. A method and system can be implement bydetermining a power grid aggregation target, and calculating the response factor of each distributed energy storage unit of the distributed energy storage system to the power grid aggregation frequency modulation, combining with the preset constraints of distributed energy storage system and power grid, adopting particle swarm optimization (PSO) to optimize the pre-established objective function of power system, determining the optimal aggregation frequency modulation scheme of distributed energy storage system, and then performing simulation analysis on the economy of the grid before and after the access of distributed energy storage system according to the preset model on the simulation model,so as to evaluate the frequency modulation performance of distributed energy storage system after the access of distributed energy storage system to grid. By optimizing the output of the distributed energy storage system, the method and the system realize the timely treatment of the frequency problems existing in the power grid, prevent the occurrence of large-scale cascading failures, and give full play to the application potential of the distributed energy storage system.
Owner:CHINA ELECTRIC POWER RES INST +2

Maize water-logging tolerance-related transcription factor gene zm-bRLZ, molecular marker and application

The invention belongs to the technical field of plant gene engineering, and relates to clone and application of a maize water-logging tolerance-related transcription factor gene zm-bRLZ. The nucleotide sequence of the gene is shown as SEQ ID No. 1, and the gene has a total length of 4,027bp and comprises 6 exons. The cDNA sequence of the gene is shown as SEQ ID No. 2, and 282 amino acids are encoded on the gene. In flooding stress, the expression of the gene in maize inbred line Hz32 seedling roots is up-regulated and the expression level of the gene in the Mo17 is kept unchanged. The in-vitro combination of a gene protein product and an antidiuretic hormone (ADH) promoter anaerobic response factor shows that the zm-bRLZ gene has a regulation and control effect on an anaerobic induced gene. A pair of cleaved amplified polymorphic sequence (CAPS) markers is developed by utilizing zm-bRLZ gene sequence difference of the maize water-logging tolerance inbred line Hz32 and high-sensitivity K12. The gene is positioned at a water-logging tolerance quantitative trait locus (QTL) peak part of 9.04bin by utilizing K12*Hz32 F2 group. A candidate gene correlation analysis proves that a zm-bRLZ gene promoter region and a plurality of single nucleotide polymorphism (SNP) sites at a 3'-untranslated region (3'-UTR) are all obviously associated with a plurality of water-logging tolerance indexes.
Owner:HUAZHONG AGRI UNIV

Preparation method and application for double-response bi-crosslinked injectable hydrogel used for fine-controlled release of insulin

The invention relates to preparation and applications for double-response bi-crosslinked injectable hydrogel used for fine-controlled release of insulin. A chitosan derivative having excellent biocompatibility, biodegradability and antibacterial property is employed as a basic high molecule, and two dynamic bonds comprising imine bond and phenylboronate are employed for preparing pH/glucose bi-sensitive injectable hydrogel, and meanwhile bio-active molecules, such as glucose oxidase and the like, are introduced into the gel substrate through a disulfide bond and the like dynamic bonds to form a double glucose response system. Through the two glucose response factors, phenylboronate and the glucose oxidase, the concentration change of glucose in external environment can be sensed at the same time, thereby causing reversible reaction of the imine bond and phenylboronate in the system, so that the bi-crosslinked network structure of the hydrogel is changed greatly to release the medicines. High sensitivity and quick response to concentration change of glucose are achieved through double sensing units (the glucose oxidase and the phenylboronic acid group) and double accepting units (the imine and phenylboronate).
Owner:NINGBO UNIV

Method and system for determining grounding grid corrosion point

The invention discloses a method and a system for determining a grounding grid corrosion point. The method is applied to the system, and includes the steps that alternating currents with certain frequency and a certain size are injected to a grounding grid, alternating magnetic field strength of a detected point in the grounding grid is detected, and normalization response factors of the detected point are calculated; and when the normalization response factors accord with a preparatory condition, the detected point is determined to be a corrosion breakpoint. Through the method, the fact whether a corrosion point exists in the grounding grid or not can be determined, as long as the alternating currents with the certain frequency and the certain size are injected to the grounding grid, normalization processing is carried out on the alternating magnetic field strength of the detected point, and thus the normalization response factors are obtained. When the normalization response factors accord with the preparatory condition, the detected point is determined to be the corrosion point. According to the method, excavation of the grounding grid in a large area is needless, a great quantity of labor and working blindness are avoided, and normal operation of an electric system can also be guaranteed.
Owner:STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST +2

Method for rapidly determining nanofiltration membrane kind and operation conditions during water processing

The invention discloses a method for rapidly determining nanofiltration membrane kind and operation conditions during water processing, and belongs to the field of nanofiltration membrane recovery during water processing. The method comprises the steps: (1) screening pressure X1, temperature X2 and water inlet flow X3 as response factors, and designing experiment combinations; (2) employing membrane flux Y1 and pollution index Y2 as response value; (3) immersing a nanofiltration membrane in pure water, pre-pressing for usage; (4) filtering wastewater by a precision filter; (5) performing filtration experiments; (6) at the beginning and after two hours of the membrane filtration experiments in the step (5), respectively employing a balance to measure the water outlet flux, employing a conductivity instrument to measure the conductivity, and employing an ultraviolet spectrophotometer to measure UV<254>, so as to obtain salt removing rate and organics removing rate; (7) determining a regression model equation; (8) determining optimum operation conditions; and (9) determining membrane performance evaluation index I. The method is capable of relatively rapidly performing quantitative evaluation on nanofiltration membrane performances and comparing various nanofiltration membranes through a quantification process.
Owner:NANJING UNIV

Dechlorination deuterium-added gas chromatography-mass spectrometry method for short-chain and medium-chain chlorinated paraffin

The invention provides a method for detecting content of short-chain and medium-chain chlorinated paraffin. The method comprises: making a sample containing short-chain and medium-chain chlorinated paraffin and a deuteriation reducing reagent to have a deuterium-adding dechlorination reaction at 80-120 DEG C, so as to generate an alkane with corresponding deuterium substituting quantity; then performing water deactivation and alkali processing, and employing hexane to performing multi-time extraction on the sample, and concentrating and getting a constant volume; and employing gas chromatography-mass spectrometry to perform quantitative analysis on the deuterated alkane with different deuterium substituting quantity, so as to obtain concentration and distribution characteristic of homologue compositions of short-chain and medium-chain chlorinated paraffin with different carbon chain length and different chlorine substituting quantity. Chlorine content does not influence response factors in the method, the method effectively solves problems in a gas chromatography-electron capturing negative chemical source-mass spectrum method generally employed for analyzing short-chain and medium-chain chlorinated paraffin at present, and mutual interference of homologues is avoided, and the method is accurate in detection result and simple in operation, and can be used as a laboratory routine standard analysis method.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Temperature sensitive graphene-based gold-platinum core-shell bimetallic catalyst and preparation method thereof

The invention relates to a temperature sensitive graphene-based gold-platinum core-shell bimetallic catalyst and a preparation method thereof. The catalyst is characterized in that a gold-platinum core-shell structured bimetallic nanoparticle with the particle size of 35-50nm is supported on a graphene carrier as an active site, sulfhydrylated polyisopropyl acrylamide grafted glucan is coated on the gold-platinum core-shell structured bimetallic nanoparticle as a temperature stimulation response factor, the catalyst concretely comprises 28-42.5wt% of graphene, 2.4-9wt% of gold, 2.4-9wt% of platinum, and 50-60wt% of the sulfhydrylated polyisopropyl acrylamide grafted glucan, and the sum mass percentages of all components is 100%. The method comprises the following steps: preparing a temperature sensitive graphene-based gold-platinum core-shell bimetallic catalyst precursor; preparing an aqueous solution of polyisopropyl acrylamide grafted glucan; and preparing the temperature sensitive graphene-based gold-platinum core-shell bimetallic catalyst. The catalyst has the advantages of high catalysis activity, good reusability, and realization of temperature control of the catalysis activity.
Owner:TIANJIN UNIV

Method and system for evaluating mountain torrent disaster risks of villages along river based on DPSIR model

ActiveCN110298577AAccurately locate flood control weak pointsHas the characteristics of mountain torrent disaster risk assessmentClimate change adaptationResourcesRisk levelResponse factor
The invention provides a method and a system for evaluating mountain torrent disaster risks of villages along river based on a DPSIR model. The evaluation method comprises the following steps: selecting indexes corresponding to a driving force factor, a pressure factor, a state factor, an influence factor and a response factor, and constructing an index system based on a DPSIR model to form an index library; screening out a preset number of indexes related to each factor from an index library, and obtaining corresponding index values and performing normalization processing; calculating the weight of the selected index; multiplying the corresponding normalized index value of the screened pressure factor, the corresponding normalized index value of the state factor, the corresponding normalized index value of the influence factor and the corresponding normalized index value of the response factor by corresponding weights respectively, and then accumulating the same kind to obtain a pressure degree P, a pressure bearing degree S, a vulnerability degree I and a loss stopping degree R; and introducing a reduction pressure bearing degree and a reduction vulnerability degree, calculatingto obtain a comprehensive evaluation risk degree, comparing the comprehensive evaluation risk degree with a preset risk level threshold value, and judging the mountain flood disaster risk level to which the village along the river belongs at present.
Owner:UNIV OF JINAN
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