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31 results about "Structural index" patented technology
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High-resolution image-based road region building change extraction method
ActiveCN106683112AAvoid interferenceImage enhancementImage analysisVisual interpretationClassification methods
The invention relates to a high-spatial resolution remote sensing image-based road region building change extraction method and device. According to the method and device, an object-oriented image processing strategy is adopted, the spectral information and spatial information (including structural indexes and spatial relationships) of images are comprehensively utilized, and a single-class classification method is adopted. In order to avoid interference (spectral similarity) on extracted results caused by ground feature classes except road regions, it is required that existing road information such as an existing road vector diagram, is provided in advance; the existing road vector diagram is adopted to extract a road region range; and newly increased buildings are extracted within the road region range. With the high-spatial resolution remote sensing image-based road area building change extraction method and device provided by the invention, time for a traditional method to obtain newly increased buildings such as illegal buildings by using image visual interpretation can be greatly decreased, efficiency can be improved, and human resources can be saved. The method and device can be used for road maintenance and monitoring business operation systems.
Owner:国交空间信息技术(北京)有限公司 +1
Efficient sweet cherry fence type grafting and symbiotic cultivation technology and application thereof
The invention discloses an efficient sweet cherry fence type grafting and symbiotic cultivation technology. According to the technical scheme, fence type cultivation is utilized. The method comprisesthe steps of large seedling cultivation and transplanting before grafting, trunk grafting and cultivation of lateral branches after grafting. According to structural indexes of trees obtained after symbiotic cultivation, the height of the trees is 2.5-3.0 m, the vertical section of each trunk is 40-50 cm high, the horizontal section of each trunk is 1.8-2.3 m long, 8-12 back branches grow on eachtrunk, the back branch spacing of each trunk is 10-15 cm, the length of the back branches on each trunk is smaller than 2.0 m, the diameter of base parts of the back branches on each trunk is smallerthan 4 cm, and the effect fruit and branch proportion is 98%. The invention further discloses application of the technology in the field of cherry grafting and cultivation field. The problem that in atraditional fence type cultivation technology, back branches of cherries are not balanced in growth is solved, seedling planting is completed within two years, and the technology has the advantages that the number of layers of tree structures is small, growth is balanced, the back branches are strong, the yield is high, harvesting is early, the cherry variety is good, and mechanical harvesting isfacilitated.
Owner:SHANGHAI JIAO TONG UNIV
Multi-keyword orderable ciphertext retrieval method for cloud computing
ActiveCN108171071AReduce index memorySave memoryDigital data protectionSpecial data processing applicationsCiphertextResult set
The invention discloses a multi-keyword orderable ciphertext retrieval method for cloud computing. According to the method, document keyword sets are grouped through a grouping method, a correspondingB<+> index tree is constructed for each reverse keyword set document vector set, the index tree is uploaded to cloud after being encrypted based on an improved KNN query algorithm, retrieval result sets are ordered through a TF-IDF model after a query trap door is uploaded, and the first k documents with the highest relevancy score are returned to a user. The method has the advantages that the B<+> tree is lower than other structural trees; since retrieval efficiency and height are increased in direct proportion, the efficiency difference can be more obvious along with increase of the document sets and the keyword sets; by the adoption of the method of grouping construction of B<+> tree structural indexes, retrieval speed can be greatly increased; and through relevancy score comparison, on the premise that result sets meet a demanded quantity, whether to continue to retrieve subsequent nodes of current tree nodes is judged in advance, and therefore retrieval efficiency is further improved.
Owner:吉林省外国企业服务有限公司
Remote sensing image road intersection extraction method based on structural index characteristic
The invention relates to a remote sensing image road intersection extraction method based on structural index characteristic, and the method comprises the steps: a to-be-detected intersection position set is acquired according to line intersection information in a road network vector; an intersection image slice is acquired according to the intersection position and a buffer radius, and a multi-directional morphological filter is adopted to perform enhancement processing to remove obvious small-size interference ground objects. The intersection structure detection is mainly divided into two levels to execute, and the two levels include plane intersection structure detection and road vertical intersection structure detection. When a plane intersection structure detection result is inconsistent with the intersection structure in a navigation road network, a fake detection result caused by separating vertical intersection is considered, and a road vertical intersection structure detection method is further adopted to perform further detection and verification. The composite road intersection structure widely existing is considered, a prior road intersection model is used as a constraint and can perform a structured organization on extracted adjacent road intersection.
Owner:WUHAN UNIV
Electric power system key section identification method based on initial fault line cut set
ActiveCN109375050AThe key section method is simpleFast critical section methodFault location by conductor typesElectric power systemSystem failure
The invention discloses an electric power system key section identification method based on an initial fault line cut set and especially relates to the electric power system fault detection technologyfield. The method is characterized by through defining the structural index of the cut set, an outage probability index and the percentage index of loss of load as a risk assessment index, using a direct current trend model to determine the initial load of each component and determining the cut point of a network; then, blocking a network topology map and disconnecting a determined initial faultline, and recalculating a trend; and searching the first K shortest paths which are seriously affected by initial fault line trend transfer in a same block, searching the cut set of the system based on the initial fault line in the first K shortest paths, calculating the risk assessment index value of the cut set and carrying out risk assessment on the cut set to accurately identify a key transmission section. The method can be realized without complex fault data processing. Compared with other electric power system key section method, the method of the invention is simple, rapid and is easy to realize.
Owner:SHANDONG UNIV OF SCI & TECH
Algorithm applied to recommendation systems and implementation method thereof
InactiveCN102855240AIncrease opennessRecommendedCommerceSpecial data processing applicationsReachabilityPrincipal component analysis
The invention discloses an algorithm applied to recommendation systems and an implementation method thereof. The algorithm and the implementation method aim to implement individualized expert recommendation based on user preference, so that the recommendation systems are more open, recommended and multi-index. In order to achieve the purpose, the algorithm realizes three dimension indexes including a quality index, a structural index and a matching index for evaluating experts by the aid of a principal component analysis method and an extremum method of a linear non-dimensionalization method. The implementation method includes: firstly, preliminarily finding out the experts according to the quality index (a correlation factor Y1, an authority factor Y2 and an activity factor Y3) and the structural index (a sociality factor Y4), then computing a reachable index (a reachable factor Y5) of each expert, and finally, obtaining one final recommendation expert according to the experts and reachability thereof.
Owner:上海迈辉信息技术有限公司
Magnet second-order Euler inversion method and scalar magnetometer array
ActiveCN109307847AEasy to assembleEasy to replaceMagnetic field measurement using flux-gate principleMagnetic field measurement using galvano-magnetic devicesMagnetic gradientObservational error
The invention provides a magnet second-order Euler inversion method and a scalar magnetometer array. 13 scalar magnetometers form a scalar magnetometer array, and a GPS or a high-precision inertial navigation system is installed; a search region of a magnet is determined, and the position coordinates of the magnet, estimated values of structural indexes and a mean value of total estimation valuesare calculated, and then a nearest neighbor integer value of the mean value is calculated to obtain an inversion value of the structural indexes of the magnet; solution center calculation and iterative screening are carried out on the position coordinate estimation values of the magnet on an updated Kth track section, so as to obtain an inversion value of the position coordinates of the magnet. According to the method, magnetometer array assembling and plane unit replacement are facilitated, and the position coordinates and the structural indexes of the magnet are simultaneously inverted by afirst-order magnetic gradient value and a second-order magnetic gradient value at a plurality of measuring points, the influence of a gross measurement error of the magnetic gradient on the inversionprecision is reduced, and subjective experience selection of the structural indexes and centralization processing of the gradient measurement data are avoided.
Owner:HARBIN ENG UNIV
Fuzzy comprehensive evaluation and analysis method for dam risk levels based on cloud model
InactiveCN111047043AReduce loss of life and propertyFuzzy logic based systemsResourcesRisk levelEnvironmental resource management
The invention relates to a cloud model-based fuzzy comprehensive evaluation and analysis method for the risk level of a barrage. According to the method, the influence of various factors on the risk degree of the weir dam is considered; uncertainty, complexity and fuzziness exist; analyzing the risk of the damming dam; a fuzzy comprehensive evaluation system for the dam risk level based on the cloud model is established; selecting a stability index, a monitoring index, a vulnerability index, a drainage basin characteristic index, a geological condition index, a geometrical morphology index anda structure index as evaluation indexes; the evaluation indexes are comprehensively considered; qualitative description of the weir dam risk grade is converted into quantitative numerical conversion;the risk grade of the weir dam is obtained through comprehensive analysis, when the risk of the weir dam is high, all risk indexes of the weir dam need to be monitored, analyzed and evaluated all thetime in time, necessary treatment measures need to be taken in time, and life and property losses caused by dam burst are avoided.
Owner:NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
Regional economic development quality evaluation model based on big data
PendingCN112580959ASolve the problem of inconsistency in connotation interpretationSolve the problem of inconsistent interpretationTechnology managementResourcesEconomic benefitsPower grid
The invention discloses a regional economic development quality evaluation model based on big data. The model is used for evaluating economic development quality and consists of a plurality of secondary indexes, and each secondary index consists of a plurality of tertiary indexes; and the secondary indexes comprise an economic growth index, an economic benefit index, an economic structure index, an economic sustainable index, an economic sharing index, user energy consumption, power grid development and a customer service level. Power data such as user files, power consumption, loads and powerconsumption changes are combined with data such as regional economy obtained from the outside, and development evaluation data measurement and calculation of different regions under the power perspective are carried out.
Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO
Method and apparatus for evaluating network structure
An embodiment of the invention provides a method and apparatus for evaluating a network structure. The method comprises the steps of acquiring sweep frequency data of each sweep frequency point; calculating the number N of available signal cells of each sweep frequency point and the total number M of auxiliary carriers of the available signal cells according to the sweep frequency data; calculating a co-frequency interference value between every two available signal cells based on the total number of the auxiliary carriers, correcting the co-frequency interference values by using the correlation of scrambling code groups, and obtaining interference values of the available signal cells; and calculating, according to the number N of available signal cells, the total number M of auxiliary carriers and the interference values of the available signal cells, a network structural index for evaluating the network structure. The network structural index is calculated based on the network overlapping coverage degree, the auxiliary carriers and the interference factors among the cells in a network, a quantitative analysis of a network status is achieved, and the larger the network structure index, more complex the network structure and the larger an optimized space.
Owner:CHINA MOBILE GROUP ZHEJIANG
Basin giant system state analysis method and device
ActiveCN112668923AGeneral water supply conservationResourcesEcological environmentEnvironmental engineering
The invention relates to a basin giant system state analysis method and device, and the method comprises the steps: determining the boundary and structure of a basin giant system, dividing the basin giant system into a river subsystem, an ecological environment subsystem and a human economy subsystem, and building a basin comprehensive evaluation index system; collecting and cleaning index data of all evaluation indexes in the comprehensive evaluation index system within a preset time period; dividing the indexes into positive entropy change indexes and negative entropy change indexes based on a basin comprehensive evaluation index system and index characteristics, respectively calculating total entropy values, and calculating dissipation structure indexes of the giant system by utilizing a Brusser model; and calculating the basin development index of the giant system according to the dissipative structure index so as to evaluate the basin development quality. Through the technical scheme, a river control decision theory taking the basin development index as a decision basis is provided, the basin giant system evolution state and development quality are comprehensively evaluated, and technical support is provided for comprehensive treatment, system treatment and source treatment of the Yellow River basin.
Owner:YELLOW RIVER ENG CONSULTING
A method for extracting building changes in road domain based on high-resolution images
ActiveCN106683112BAvoid interferenceImage enhancementImage analysisVisual interpretationClassification methods
The present invention proposes a method and device for extracting road area building changes based on high spatial resolution remote sensing images. The characteristics or key links of the method and device include: adopting an object-oriented image processing strategy, comprehensively utilizing spectral information of images and Spatial information (including structural index, spatial relationship), using a single-class classification method. In addition, in order to avoid interference (spectral similarity) on the extraction results by feature categories outside the road area, the present invention requires that existing road information be provided in advance, such as the existing road vector diagram. The range of the road domain is extracted by using the existing road vector diagram, and then only new buildings are extracted within the range of the road domain. The method and device for extracting new buildings with high spatial resolution provided by the present invention can greatly reduce the traditional method of using image visual interpretation to obtain new buildings (including illegal buildings) in the road area. Time, improve efficiency, save human resources, and can be used in road maintenance and monitoring business operation systems.
Owner:国交空间信息技术(北京)有限公司 +1
Method for measuring surface intercellular spaces of baked tobacco leaves by means of software Photoshop
InactiveCN102621171ARealize objective and quantitative evaluationRealize quantitative evaluationMaterial analysis by measuring secondary emissionBiotechnologyIntercellular space
A method for measuring surface intercellular spaces of baked tobacco leaves by means of software Photoshop is characterized that the method is a quantitative method provided for evaluation of structural indexes of the baked tobacco leaves and including: acquiring a 450-times multiplied image of a surface cell structure of initially-baked tobacco leaves by the aid of a scanning electron microscope, reading total pixel value of the image by the Photoshop software, selecting an intercellular space portion accurately by means of a magic wand, a masking, a brush, an eraser and the like, and computing surface intercellular space rate of the tobacco leaves by the ratio of pixel value of the intercellular space portion to the total pixel value of the image. The method for measuring surface intercellular spaces of the baked tobacco leaves has the advantages that by acquisition of the scanning electron microscope and processing of the Photoshop software, quantitative data of the intercellular spaces of the tobacco leaves are acquired so as to evaluate the structure of the tobacco leaves objectively. According to continuous multi-times measuring results of tobacco leaves from different production places, the method is high in accuracy, the variation coefficient of the measured results of the same sample is kept within 2.5%, and fit goodness of the evaluation results and the judgment results of specialists is high (R2=0.98).
Owner:ZHENGZHOU TOBACCO RES INST OF CNTC
Forest health assessment method based on entropy weight-cloud model
InactiveCN111861109AImplement Uncertainty MappingChange the way of health evaluationResourcesEvaluation resultVitality index
The invention relates to a forest health assessment method, in particular to a forest health assessment method based on an entropy weight-cloud model. The scheme of the invention comprises the following steps: 1) constructing a judgment matrix; 2) performing index standardization processing; 3) calculating the entropy of each index; 4) constructing a normal cloud model; 5) selecting a structural index, a vitality index, a sustainability index and an anti-interference index in the normal cloud model for evaluation; and grading the forest health state. According to the forest health assessment method based on the entropy weight-cloud model, a traditional forest health evaluation mode is changed, randomness and fuzziness of evaluation indexes and evaluation results are considered, and the evaluation results are more objective and close to the actual situation. The uncertainty mapping between evaluation indexes and evaluation grades is realized, and a new thought and method are provided for scientific evaluation of forest health.
Owner:CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
Large-span steel structure index change prediction method based on finite element analysis method
PendingCN114528741AReduce complexityReduce wasteGeometric CADDesign optimisation/simulationDatasheetElement model
The invention discloses a large-span steel structure index change prediction method based on a finite element analysis method, and the method comprises the following steps: 100, obtaining the original index data of a large-span steel structure, and storing the original index data in an Excel table; step 200, establishing a function model according to the index data parameter range, and establishing a finite element node model by adopting large finite element software ABAQUS; step 300, importing the original index data table into the ABAQUS finite element node model, and automatically outputting node rigidity; and step 400, according to node rigidity parameters, analyzing influence weights of various factors, acquiring a data error prediction index by using a non-completely similar error prediction method, establishing an accurate node finite element model, analyzing the consistency between the model of the end plate connection node and prototype stress distribution, acquiring corresponding main influence factors, and finally establishing a node finite element model of the end plate connection node. By constructing an incompletely similar node model database, the similarity error prediction problem is layered according to specific conditions, the complexity of the model is reduced, and the prediction precision is improved.
Owner:CITIC CONSTR
A Method of Calculating Soil Constitutive Value Using Graphical Parameters
ActiveCN109187600BImprove work efficiencyCutting costsMaterial analysis using wave/particle radiationSoil scienceSoil mechanics
Owner:XIAN CENT OF GEOLOGICAL SURVEY CGS
Flowable-based business flow management method and system
InactiveCN108920474AReduce duplication of workImprove work efficiencyOffice automationSpecial data processing applicationsStructure of Management InformationBusiness data
The invention relates to a Flowable-based business flow management method and system. The method includes: corresponding work flow templates are set for different businesses, a business side generatesstructural index data according to business data, a work flow engine receives and stores the structural index data, the work flow engine reads business data according to the structural index data, and the work flow engine executes business work flow according to the business data and the work flow templates. The method is applicable to multiple complex businesses and capable of reducing repeatedworkload and increasing work efficiency.
Owner:大连智能创世科技有限公司
Distributed power supply large-scale grid-connected multi-target dynamic cluster division method and device
PendingCN114552634AImplement dynamic partitioningData processing applicationsSingle network parallel feeding arrangementsGenetics algorithmsPerformance index
The invention provides a distributed power supply large-scale grid-connected multi-target dynamic cluster division method and device. The method comprises the following steps: establishing a structural index and a functional index of distributed cluster division; combining the structural index and the functional index to form a multi-target comprehensive division performance index, converting the multi-target comprehensive division performance index into a multi-target extension time dynamic index, and dividing the multi-target extension time dynamic index according to a distributed cluster to obtain a multi-target extension time dynamic index; and obtaining a continuous extension time dynamic comprehensive performance index function, solving the comprehensive performance index function by using a genetic algorithm, and performing multi-target dynamic cluster division of the distributed power supply according to a solving result. According to the method, the power consumption problem between the DGs clusters and the influence of flexible resources on the interiors of the clusters are fully considered, and the comprehensive division performance index is converted into an expansion time dynamic index from a static index through mathematical derivation processing.
Owner:STATE GRID HUBEI ELECTRIC POWER RES INST +1
A Spatial Simulation Method of Plant Species Richness Distribution
ActiveCN108388566BDesign optimisation/simulationGeographical information databasesMacroscopic scaleSoil science
The invention discloses a spatial simulation method for the distribution of plant species richness. The implementation of this method mainly includes three steps: First, based on the collection and preprocessing of plant species data, land use / cover data, annual average biological temperature and precipitation data, DEM data and soil data in the study area, Realize the spatial processing and statistical analysis of each parameter factor; secondly, establish the best correlation between plant species richness and land use / cover area, environmental factors and land use / cover type structure index respectively. Finally, realize the comprehensive integration of the best correlation equations of the three types of factors, construct the spatial simulation method of plant species richness, and realize the spatial simulation analysis of plant species richness. This method can not only simulate the spatial distribution of plant species richness on the meso-macro scale, but also has good simulation accuracy and strong operability.
Owner:INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
A Practical Improvement Method for Source Location Estimation Based on Euler Deconvolution Method
ActiveCN112668146BSolving Divergent ProblemsAvoid divergenceDesign optimisation/simulationGeological measurementsSlant angleEstimation methods
The present invention aims at the Euler inversion calculation problem of the horizontal position and depth of different burial depths, different thicknesses, and different scales of geological bodies, based on the Euler homogeneous equation and the normalized inclination angle method, and proposes an extended inclination that does not depend on the structural index Angle Euler deconvolution method (ETA_Euler), on the one hand, avoids the divergence of the solution caused by the selection of the empirical construction index, and on the other hand, avoids the "analytic singularity" existing in the calculation of each derivative of the extended tilt angle (ETA) .
Owner:CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
Evaluation and calculation method for five structural indexes of forest spatial distribution
The invention discloses an evaluation and calculation method for the five structural indexes of forest spatial distribution. The method is characterized by comprising the steps of selecting No.1 wood as the reference wood; sequentially marking the horizontal distance Di of each tree, the di (diameter at breast height) of the tree, the height of the tree and the variety of the tree from small in a sequence with the horizontal distances Di (i=1, 2, ..., n) of all the trees from the reference wood to be from small to large; and calculating the density N, the average height, the average diameter at breast height, the average cross-sectional area, the seedling production amount and other parameters according to the generalized algorithm.
Owner:BEIJING FORESTRY UNIVERSITY
Dispersed resource cluster division method based on comprehensive performance indexes
PendingCN114662773AGuaranteed timelinessGuaranteed reasonablenessForecastingResourcesTheoretical computer scienceEngineering
The invention discloses a dispersed resource cluster division method based on comprehensive performance indexes, and belongs to the technical field of resource cluster division. A global density quality function is selected as a structure index to quantify viewpoints commonly held by community partitions; providing an inconsistency coefficient to describe the output change trend inconsistency among the scattered resources in the cluster; a node membership index is proposed to judge the reasonability of the scale of each sub-cluster after cluster division; providing a comprehensive performance index by combining the global density quality function, the inconsistency coefficient and the weight of the node membership index; and according to the comprehensive performance indexes, performing cluster division by adopting an FN algorithm. According to the method, the reasonability of the cluster division result is ensured, the community partitioning algorithm is introduced through the community partitioning theory, the community partitioning algorithm has the advantage that the optimal number of partitions can be automatically generated without being set in advance, and the timeliness of cluster division can be ensured while the optimal cluster division result is ensured.
Owner:SHANDONG UNIV OF TECH
A method, system and storage medium for structural monitoring and evaluation of complete inverse analysis
The invention discloses a complete inverse analysis structure monitoring and evaluation method, system, and a storage medium. In the scheme, monitoring modes of unit indexes and structure indexes areconstructed, fixed parameter values necessary for a calculation process of a corresponding mode are determined, and each monitoring mode is used as the minimum unit of a calculation unit and the structure indexes; then, the signal amount collected under the constructed monitoring mode is acquired, the collected signal amount is converted to a corresponding measurement physical amount, and the measurement physical amount is then converted to a corresponding direct physical amount; and finally, the corresponding process physical amount, the unit indexes and the structure indexes are obtained based on the obtained measurement physical amount and the direct physical amount by using the constructed monitoring mode and serve as direct evaluation objects for the structures and the components. According to the scheme, the structural safety and the use performance are reversely deduced completely through monitoring data, and the whole process does not depend on finite element calculation results of a design structure.
Owner:同恩(上海)工程技术有限公司
A method and device for evaluating network structure
An embodiment of the invention provides a method and apparatus for evaluating a network structure. The method comprises the steps of acquiring sweep frequency data of each sweep frequency point; calculating the number N of available signal cells of each sweep frequency point and the total number M of auxiliary carriers of the available signal cells according to the sweep frequency data; calculating a co-frequency interference value between every two available signal cells based on the total number of the auxiliary carriers, correcting the co-frequency interference values by using the correlation of scrambling code groups, and obtaining interference values of the available signal cells; and calculating, according to the number N of available signal cells, the total number M of auxiliary carriers and the interference values of the available signal cells, a network structural index for evaluating the network structure. The network structural index is calculated based on the network overlapping coverage degree, the auxiliary carriers and the interference factors among the cells in a network, a quantitative analysis of a network status is achieved, and the larger the network structure index, more complex the network structure and the larger an optimized space.
Owner:CHINA MOBILE GROUP ZHEJIANG
Artificial Building Recognition Algorithm Based on Texture Segmentation and Fusion of Radar Remote Sensing Image
InactiveCN104899562BImprove the final recognition accuracyEasy to implementCharacter and pattern recognitionRadarRecognition algorithm
The invention discloses a radar remote sensing image artificial building recognition algorithm based on texture segmentation and fusion. The algorithm steps are as follows: determine the image segmentation scale factor and logical mask segmentation scale according to the sensor type; find, calculate and screen the spatial autocorrelation structure index feature and gray level co-occurrence matrix texture feature; according to the mask scale, the spatial feature index and texture information Perform logical masking; use mathematical morphology operations to filter the masking results; perform preliminary logical clustering on the filtered results, and search for obvious building areas; according to the preliminary search results, logical clustering again and combined with mathematical morphology reconstruction algorithms, update Improve the obvious building area, and reconstruct it through the mathematical morphology section, and finally obtain the building information recognition result accurately. The invention maximizes the ability of mathematical morphology and logical clustering to identify buildings in SAR images, and can improve the final identification accuracy of building information.
Owner:HENAN POLYTECHNIC UNIV
Evaluation method of object stability state based on umbrella-shaped three-dimensional structure
InactiveCN114707259APerfect collectionGeometric CADSpecial data processing applicationsStructure propertyAlgorithm
The invention discloses an object stability state evaluation method based on an umbrella-shaped three-dimensional structure, provides a construction scheme of an umbrella-shaped three-dimensional structure index system and a two-dimensional node evaluation calculation method, and constructs a basic framework of an umbrella-shaped three-dimensional evaluation theory. When evaluation is carried out based on an umbrella-shaped three-dimensional evaluation theory, the method specifically comprises the following steps: S1, analyzing influence factors of a to-be-evaluated object; s2, decomposing the condition of the object in the objective world; s3, constructing an umbrella-shaped three-dimensional structure index system model; s4, calculating the stability degree by using a two-dimensional node method; and S5, representing and evaluating the stable state of the object. The umbrella-shaped three-dimensional evaluation theory provided by the invention is a method for evaluating the stability of objects by combining umbrella-shaped structural properties and mathematical theories, can be referenced by scholars in different fields, and can be further applied to wider fields.
Owner:ZHENGZHOU UNIV +1
A Method of Extracting Road Intersections from Remote Sensing Images Based on Structural Index Features
A method for extracting road intersections from remote sensing images based on structural index features. The method first obtains the intersection location set to be detected according to the line intersection information in the road network vector; obtains the intersection image slices according to the intersection location and buffer radius, and The multi-directional morphological filtering is used to enhance the processing to eliminate the obvious small-sized disturbance objects on the road surface. Intersection structure detection is mainly implemented in two levels: level intersection structure detection and road grade intersection structure detection. When the detection result of the level intersection structure is inconsistent with the intersection structure in the navigation road network, it is considered that the false detection result may be caused by the separated grade intersection, and the road grade intersection structure detection method is used for further detection and verification. Considering the widespread existence of compound road intersection structures, the extracted adjacent road intersections are structured using the prior road intersection model as a constraint.
Owner:WUHAN UNIV
Method for predicting neoantigen based on polypeptide structural index
The invention discloses a method for predicting a new antigen based on a polypeptide structural index, and belongs to the technical field of bioinformatics. The method comprises the following steps: s01, acquiring sample sequencing data; s02, identifying somatic cell variation of the sample; s03, performing sample variation filtration; s04, translating the variation sequence into a protein; s05, segmenting protein fragments, and filtering polypeptides in human normal proteome; s06, predicting a protein fragment structure; s07, calculating corresponding polypeptide structural indexes; s08, screening the new antigen. Based on the indexes of the polypeptide structure, the property of the new antigen can be depicted from the microscopic level, so that an important supplement is provided for a method for screening the new antigen according to molecular biological characteristics.
Owner:NEOCURA BIO-MEDICAL TECH CO LTD
Method and system for fracturing test
Owner:CGG SERVICES SA
A Method for Identifying Critical Sections of Power Systems Based on Cut Sets of Initial Fault Lines
ActiveCN109375050BThe key section method is simpleFast critical section methodFault location by conductor typesElectric power systemSystem failure
The invention discloses an electric power system key section identification method based on an initial fault line cut set and especially relates to the electric power system fault detection technologyfield. The method is characterized by through defining the structural index of the cut set, an outage probability index and the percentage index of loss of load as a risk assessment index, using a direct current trend model to determine the initial load of each component and determining the cut point of a network; then, blocking a network topology map and disconnecting a determined initial faultline, and recalculating a trend; and searching the first K shortest paths which are seriously affected by initial fault line trend transfer in a same block, searching the cut set of the system based on the initial fault line in the first K shortest paths, calculating the risk assessment index value of the cut set and carrying out risk assessment on the cut set to accurately identify a key transmission section. The method can be realized without complex fault data processing. Compared with other electric power system key section method, the method of the invention is simple, rapid and is easy to realize.
Owner:SHANDONG UNIV OF SCI & TECH
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