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66results about How to "Fully consider the impact" patented technology

Protein lysine malonylation site prediction method based on deep learning

The invention discloses a protein lysine malonylation site prediction method based on deep learning, and relates to the technical field of biological information. The method comprises the steps: converting the character information of a protein sequence into a numerical vector by adopting an enhanced amino acid composition, a grouped enhanced amino acid composition, a dipeptide deviation expectedaverage value, a K neighbor score and a BLOSUM62 matrix feature extraction algorithm, performing fusion and obtaining a feature space, wherein the influence of each potential feature on a prediction result is fully considered; performing calculating by using a linear convolutional neural network to obtain malonyl site specificity characteristics; selecting related features and reducing feature dimensions through a maximum pooling layer, classifying malonylation sites and non-malonylation sites in combination with a multi-layer deep neural network, constructing a protein malonylation site prediction model DeepMal, and evaluating prediction performance by using 10-fold cross validation and an independent test data set. The model DeepMal is remarkably improved in evaluation indexes, and further promotion of application of deep learning in protein function prediction is facilitated.
Owner:QINGDAO UNIV OF SCI & TECH

Robot automatic grinding equipment for ancient building bricks

The invention relates to robot equipment for automatically and precisely grinding ancient building bricks. The robot equipment comprises a six-degree-of-freedom industrial robot, an electric servo grinding tool, a vision detecting and positioning device, a rotating disc type workbench, brick block positioning fixtures and a dust collector; the six-degree-of-freedom industrial robot is a movement mechanism for brick block grinding; the electric servo grinding tool is used for grinding the surfaces of a brick block to achieve grinding of all the surfaces of the brick block; the vision detectingand positioning device is used for detecting the initial geometric size of the brick block; the rotating disc type workbench is fixed to the ground through a support frame and driven by a servo motorto rotate and change the position, and then one-time feeding and in-turn grinding of multiple brick blocks are achieved; the brick block positioning fixture is installed on the rotating disc type workbench, the four groups of fixtures are evenly distributed at the periphery of a rotating disc to position the brick block, and grinding of the six surfaces of the brick block is completed through twotimes of clamping and position changing; and in the grinding process, the dust collector is used for collecting grinding dust, and environment pollution is avoided. According to the robot equipment, automatic grinding can be achieved, the efficient and the grinding consistency are improved, and the cost is reduced.
Owner:LIAONING BROADCASTING TELEVISION UNIV

Modeling method of flux linkage adjustable permanent magnet synchronous reluctance motor

The invention discloses a modeling method of a flux linkage adjustable permanent magnet synchronous reluctance motor. The method comprises the following steps: extracting relation data of change of motor stator flux linkage and electromagnetic torque along with armature current and rotor position angle through finite element modeling analysis, solving an inverse function through a pair flux-current relationship function, constructing an armature current database taking stator flux linkage and rotor angle as parameter variables and an electromagnetic torque database taking armature current androtor angle as parameter variables, and further obtaining change rate data of the armature current and the electromagnetic torque of the motor along with the temperature through finite element analysis at different temperatures. Meanwhile, a motor loss real-time calculation formula is obtained in a finite element simulation and experiment fitting mode, on this basis, motor loss equivalent currentis solved, and the motor control mathematical model is further corrected. According to the method, the influence of multiple factors such as space magnetic field harmonic waves, magnetic saturation, quadrature/direct axis coupling, motor loss and temperature change is comprehensively considered, and an accurate calculation model of the motor is established.
Owner:SOUTHEAST UNIV

Human body behavior recognition method based on RGB video and skeleton sequence

The invention relates to a human body behavior recognition method based on an RGB video and a skeleton sequence, and belongs to the technical field of computer vision and pattern recognition. The method comprises the following steps: 1, carrying out the feature extraction of an inputted video segment through a feature stream, and obtaining a space-time feature map; step 2, generating a skeleton region heat map by the aid of the attention stream; 3, extracting the spatial and temporal features of the bone region through the binariar; step 4, generating a local decision result by using the localdecision block; and a fifth step of fusing the local decision results by using the decision fusion block to obtain a global decision result. According to the invention, two plug-and-play modules, i.e., a Loal decision block and a Decision block, are used for realizing decision fusion; and the Loal declusion block respectively performs decision making on the spatial and temporal features of each key area, and the Decision lusion block fuses all decision making results to obtain a final decision making result. According to the method, the accuracy of behavior recognition is effectively improvedon Pen Action and NTU RGB + D data sets.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Cooperative cognitive approach, apparatus and system based on wireless mobile network

The invention discloses a cooperative cognitive approach based on wireless mobile network, comprising the following steps: an unauthorized system dividing each two unauthorized clients existing in the system into one group, and determining the data reliability of respective unauthorized client in each group contained in the dividing result, and acquiring the environmental information of each group acquired on the basis of the cooperative cognition according to the data reliability, and combining the information to acquire the final environment sensory result; and the data reliability in inverse proportion to the distance between the unauthorized client and the authorized base station is used for regulating the value of environment information acquired by the unauthorized client. Thus, thereliability of the environment information acquired on the basis of cooperative cognition is improved after that each two unauthorized clients are combined; on the basis, the environment information acquired by the respective combination are combined to acquire the final environment sensory result, and the accuracy of environment sensory result is further improved. The invention also discloses a communication apparatus and a communication system.
Owner:CHINA MOBILE GROUP SHANDONG

Predictive tumor system based on next generation sequencing

A system for predicting tumors based on next-generation sequencing, including an anticoagulant blood collection tube for collecting blood, a DNA extraction kit, a next-generation sequencing device, and a gene mutation evaluation system. Extract whole blood DNA, the second generation sequencing device detects the sequence of the whole blood DNA, the gene mutation evaluation system analyzes the situation of gene mutation according to the sequence detected by the second generation sequencing device, and according to the tumorigenicity grade of the mutated gene And the dominant recessiveness of the gene predicts the risk level of tumor occurrence. The present invention adopts the second-generation sequencing platform second-generation sequencing device to sequence the gene, which is fast, so that the gene can be comprehensively sequenced, the tumor can be comprehensively screened, and the risk level of the tumor can be predicted through the gene mutation evaluation system, so that customers can do it as soon as possible. get ready. Analyze the situation of gene mutation, and predict the risk level of tumor occurrence according to the tumorigenicity level of the mutated gene and the dominant recessiveness of the gene, and fully consider the impact of the mutated gene on the occurrence of tumor, thus making the prediction more accurate.
Owner:首度生物科技(苏州)有限公司 +1

Analytic hierarchy process based load fusion modeling method

The invention discloses an analytic hierarchy process based load fusion modeling method. The method comprises: acquiring actual measurement data or experimental simulation data of a monitoring point of a power system; establishing an analytic hierarchy structure comprising a target layer, a criterion layer and a scheme layer, wherein the scheme layer comprises two load models which are a load model considering a power distribution network and a load model of a tractive power supply system respectively; identifying model parameters: performing parameter identification on the two models to obtain a power fitting curve with model power changed with voltage; forming a determining matrix according to parameter identification results, wherein the determining matrix represents relative importance degrees among factors in the same level in a matrix form; calculating a weight and a weighted factor of the determining matrix; and calculating a weighted model fitting result, comparing errors, determining whether a fitting error is reduced, and if the fitting error is reduced, outputting the identification parameters, the weighted factor and the power fitting curve of the model. The method further fully considers load randomness and variability factors; and the method is high in fitting precision and reduced in error.
Owner:SHANDONG UNIV

Water quality space-time correlation prediction method based on long and short term memory and radial basis function neural network

The invention relates to a water quality space-time correlation prediction method based on long and short term memory and a radial basis function neural network. A water quality space-time fusion prediction model based on LSTM-RBF is provided by considering space-time characteristics and multivariate correlation of water quality changes. The method is mainly divided into five processes. The method comprises the following steps: 1) cleaning data, and respectively constructing a time data set and a space data set; 2) performing grey correlation analysis on the time data set obtained in the step 1), and performing spatial feature dimension reduction by using depth self-coding; 3) constructing an LSTM water quality time dimension prediction model according to the parameters after feature extraction in the step 2) to obtain a time dimension prediction result; 4) taking a result after feature dimension reduction in the step 2) as input of a spatial dimension RBF model, establishing an RBF spatial dimension water quality prediction model, and obtaining a spatial dimension prediction result; and 5) taking the time prediction result and the space prediction result as two new features, and fusing by using the model tree to obtain a time-space fusion water quality parameter prediction result.
Owner:BEIJING UNIV OF TECH

Small-interference stability analysis method for time-delay power systems based on low-order IGD-IRK

The invention discloses a small-interference stability analysis method for a time-delay power system based on low-order IGD-IRK. The small-interference stability analysis method comprises the following steps: establishing a mathematical model of the time-delay power system; according to whether state variables of the time-delay power system are related to time delay, rewriting differential equations of the time-delay power system as a part related to the time delay and a part unrelated to the time delay; obtaining an infinitesimal generator corresponding to a state equation of the time-delay power system after recombination; aiming at the infinitesimal generator, performing low-order discretization based on the implicit Runge-Kutta method to obtain a low-order discretized approximation matrix of the infinitesimal generator; aiming at the low-order discretized approximation matrix of the infinitesimal generator, performing inverse displacement change to obtain a low-order discretized approximation inverse matrix of the infinitesimal generator; and aiming at the inverse matrix, performing sparse eigenvalue calculation, and then performing inverse transformation and Newton's check onthe sparse eigenvalues to obtain the exact eigenvalues of the time-delay power system.
Owner:SHANDONG UNIV

Radial rotation error prediction method for static air pressure main shaft

Provided is a radial rotation error prediction method for a static air pressure main shaft. The method conducts prediction in consideration of micro-scale effects of air film flow in a static air pressure bearing and nonlinear dynamic characteristics. According to the structure and a principle of the static air pressure bearing, flow factors embodying the micro-scale effects are introduced to establish a mathematical model of the air film flow of the static air pressure radial bearing under micro-scale; an air film is transformed into a spring damping system with two freedom degrees perpendicular to each other, the flow model is calculated, and nonlinear dynamic stiffness and damping coefficients are assigned to the spring damping system under the micro-scale; according to the structure and working principle of the static air pressure main shaft, a bearing-rotor system model composed of the air film and a rotor is established; based on the characteristics of main shaft vibration, a mathematical model of dynamic vibration of the bearing-rotor system is established; various vibration errors of the static air pressure main shaft are obtained, and total radial rotation errors of the main shaft are obtained by integrating the various errors.
Owner:BEIJING UNIV OF TECH

Matching test method and system for BMS alternating current charging coupler

The invention relates to development and testing of BMSs, and discloses a matching test method and system for a BMS alternating current charging coupler. The matching test system comprises a temperature control module, a model simulation module, a communication module, a coupler module and a master computer. The matching test method comprises the steps of acquiring and storing corresponding relations between ambient temperatures of different models of charging piles and a preset charging current, separately inputting a temperature signal indicating a preset temperature, an identification signal indicating the model of the corresponding charging pile, an electronic interlocking signal and a handshaking signal into the BMS alternating current charging coupler, receiving a requested chargingcurrent fed back from the BMS alternating current charging coupler, and judging whether the BMS alternating current charging coupler can pass a matching test according to the corresponding relations.The matching test method and system are not limited by a whole vehicle and the real charging piles, and take into account the influence of the ambient temperatures on charging currents output by the charging piles, thereby improving the test efficiency and the accuracy of test results.
Owner:ANHUI RNTEC TECH CO LTD

A three-dimensional simulation method for a transient process of pumped storage power station based on water hammer effect and dynamic mesh theory

The invention discloses a three-dimensional simulation method for a transient process of a pumped storage power station based on a water hammer effect and a dynamic grid theory. Firstly, three-dimensional modeling and mesh generation are carried out. Then, the user-defined function is used to add the compressibility equation of state and the function to control the closing of the guide vane in thepump-turbine unit, and the transient solver is used to calculate the fluid in the whole flow channel. Finally, the post-processing software is used to process the calculation results. On the basis ofconsidering the compressibility of the water body and the closing rule of the movable guide vane, 3-D model of the overcurrent system of the whole pumped storage power station is established, including the inlet and outlet, the water pipe and the overflow part of the pump turbine unit, and the transient changes of the internal flow field of the pump turbine unit in the transitional process of thepumped storage power station are intuitively reproduced by using the three-dimensional full-channel simulation model, thus providing a reliable basis for the further study of the pumped storage powerstation.
Owner:STATE GRID CORP OF CHINA +3

Nonlinear runoff probability prediction method

The invention provides a nonlinear runoff probability prediction method. The method is characterized by comprising the following steps that 1, unit lines which are generated by net rainfall within the drainage basin time frame (j, j+delta t) and submit to distribution G(.); k unit line impact factors tau j,1, tau j,2,..., tau j,k within the time frame (j, j+delta t) are selected, and a correlation H(.) between the unit line impact factors and theta j is built; 2, runoff of the net rainfall generated at the moment T within the time frame (j, j+delta t); 3, it is assumed that true runoff of the net rainfall generated at the moment T within the time frame (j, j+delta t) shows normal distribution and fluctuates vertically relative to a predicted value; it is further assumed that the true runoff, the predicted value and the impact factors tau j,1, tau j,2,..., tau j,k conform to the formula shown in the description; 4, the true runoff at the moment T is obtained; and distribution which QT meets is obtained; 5, a likelihood function of the flood is obtained according to the drainage basin, a likelihood function of multiple floods is calculated, and the maximum likelihood method is used for estimating parameters; 6, according to the obtained parameters and the runoff models built in the steps 1-4, prediction is performed.
Owner:WUHAN UNIV

Charging and battery swap station battery swap load prediction method based on LSTM and related components thereof

The invention discloses an LSTM-based charging and battery swap station battery swap load prediction method and related components thereof, and the method comprises the steps: collecting the number ofhistorical battery swap vehicles of a charging and battery swap station, and selecting the number of battery swap vehicles in a preset period in a period of time and corresponding related variables as sample data; carrying out normalization processing on the sample data and then carrying out segmentation by adopting a sliding window algorithm to obtain training samples; training the LSTM model byusing the training sample to obtain a battery replacement vehicle number prediction model; and obtaining the number of the battery replacement vehicles in the specified period according to the battery replacement vehicle number prediction model, and obtaining the total battery replacement load corresponding to each vehicle in the specified period in combination with a state-of-charge probabilitydensity distribution function based on Gaussian distribution. According to the method, the power exchange vehicles in the specified period are predicted by using the power exchange vehicle number prediction model, and the power exchange load corresponding to each vehicle in the specified period is acquired in combination with the state-of-charge probability density distribution function, so that the influence of related variables on sample data is fully considered, and the prediction accuracy is improved.
Owner:深圳天顺智慧能源科技有限公司
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