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50results about How to "Increase consideration" patented technology

Method and system for simultaneously measuring heat conductivity, heat diffusivity and heat capacity of low-dimensional material

The invention belongs to the technical field of heat testing of low-dimensional materials and in particular relates to a method and a system for simultaneously measuring the heat conductivity, heat diffusivity and heat capacity of a low-dimensional material. According to the system, a frequency-variable periodic wave type heat source assembly is used as a sine wave heat source; temperature signals of different parts of a sample are collected by using an infrared temperature measurement probe in a non-contact manner; periodic wave type signals with signal-noise ratios are collected by using a phase-locking amplifier in double channels; a computer is used for processing the signals and analyzing data; the heat conductivity, the heat diffusivity and the heat capacity can be simultaneously measured. According to the method, a novel analytic method is disclosed by adding a frequency variable on the basis of an Angstrom method, so that one set of device is capable of simultaneously measuring the heat conductivity, the heat diffusion coefficient and the heat capacity change; a reference quantity heat dissipation term m<2> is increased, so that a real part m<2> is added to the square beta<2> of an amplitude attenuation coefficient; the accuracy and the reliability of the complete set of analytic method in actual use are greatly improved.
Owner:TSINGHUA UNIV

Electric vehicle online energy consumption prediction method and system

The invention discloses an electric vehicle online energy consumption prediction method and system, and the method comprises the steps: loading vehicle type information, and obtaining the average hundred-kilometer energy consumption P0 of a vehicle type, and the energy consumption being energy consumption of a standard driving style, a standard road condition and non-high-temperature or low-temperature weather; calculating an energy consumption correction coefficient ke; acquiring driving information of a preset number of vehicles of the same vehicle type which are driven on the current driving road section, classifying the vehicles according to the personal driving style, the congestion degree and the weather recorded after driving to the destination, averaging the actual energy consumption in each class, and further converting the average hundred-kilometer energy consumption of the road section to obtain the ratio of the average hundred-kilometer energy consumption to the standard hundred-kilometer energy consumption P0, namely ke in different styles, congestion degrees and weathers; and calculating and updating the current hundred-kilometer energy consumption P and the driving range E of the vehicle in real time in each execution period, wherein P is equal to keP0, E is equal to 100 Q.C/P, Q is the current battery capacity percentage, and C is the total energy of the batteryof the vehicle. Therefore, the vehicle type in a traditional algorithm is considered, the driving behavior is additionally considered, and the energy consumption prediction is more accurate.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Smelting burdening method based on optimized ecological niche genetic algorithm

The invention discloses a smelting burdening method based on an optimized ecological niche genetic algorithm, which comprises the following steps: S1, establishing a multi-objective function, proposing indexes of various parameters as multi-constraint conditions, and establishing a burdening optimization mathematical model; S2, performing weighting processing on the multi-objective function basedon a difference particle swarm optimization method, and converting the multi-objective model into a problem of a single-objective function; S3, dividing the population into K clusters according to a K-means clustering algorithm, and determining a clustering center; S4, performing selection, self-adaptive crossover, self-adaptive variation and niche elimination operation; and S5, judging whether atermination condition is met or not to obtain the final addition amount of the ingredients. According to the invention, problems of difficult multi-objective solving and easy falling into a local optimal solution and the like existing in batching optimization are solved; according to the smelting batching method based on the optimized ecological niche genetic algorithm, the three processes of determining the weight of the multi-objective function, the ecological niche radius and crossover and mutation operators are improved, the accuracy of the batching ratio is effectively and remarkably improved, and the cost is saved.
Owner:天津开发区精诺瀚海数据科技有限公司

Workshop production operation scheduling method based on clustering ecological niche genetic algorithm

The invention discloses a production operation scheduling method based on a clustering ecological niche genetic algorithm, and the method comprises the following steps: S1, building a multi-objectivefunction, proposing a multi-constraint condition, and building a production operation scheduling optimization mathematic model; S2, performing weighting processing on the multi-objective function based on a particle swarm weight optimization method, and converting the multi-objective model into a problem of a single-objective function; S3, dividing the population into K clusters according to a K-means mean clustering algorithm, and determining a clustering center; S4, performing selection, self-adaptive crossover, self-adaptive variation and niche elimination operation; and S5, judging whethera termination condition is met or not to obtain a final production scheduling scheme. The method aims at solving the problems that existing multiple targets in scheduling are difficult to solve and prone to falling into a local optimal solution. According to the scheduling method based on the clustering niche genetic algorithm, the three processes of determining the weight of the multi-objectivefunction, the radius of the niche and crossover and mutation operators are improved, the production scheduling capacity is effectively and remarkably improved, and the production cost is effectively saved.
Owner:天津开发区精诺瀚海数据科技有限公司

Multi-target tracking method based on deep neural network

The invention discloses a multi-target tracking method based on a deep neural network, and the method comprises the following steps: collecting a to-be-tested video, preprocessing the to-be-tested video, and extracting an original image frame of the to-be-tested video; performing target detection on each original image frame, identifying a to-be-tracked target, and obtaining a target detection frame of each original image frame; matching the target detection frames in two continuous frames of images on the time axis, calculating the similarity of to-be-tracked targets in the target detection frames, comparing the similarity of the to-be-tracked targets in the two continuous frames of images on the time axis, judging whether the to-be-tracked targets are the same to-be-tracked target or not, and if yes, allocating an ID and outputting a tracking result; if not, carrying out matching and judgment again; and realizing continuous tracking of multiple targets of the video based on the ID and the tracking result. The motion features and the appearance features are fused into the loss matrix calculation process, the prediction accuracy of the next frame of target is improved, and the ID Switch index is reduced, so that continuous tracking of the target is truly realized.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Human resource bidirectional recommendation system based on data mining and privacy protection technology

The invention discloses a human resource bidirectional recommendation system based on data mining and privacy protection technology, and belongs to the technical field of data mining and recommendation systems. The system comprises a data acquisition module, a database establishment module, a data anonymization module, a data arrangement module, a data mining module and a recommendation algorithmmodule. According to the invention, accurate recommendation can be provided for colleges and universities in the field of recruitment and employment of graduates so as to improve the employment rate.Social recruitment resources can be managed by recruitment enterprises or human resource departments; Meanwhile, a big data visual display module in the system can be used for school employment or government related departments to monitor market conditions, make scientific decisions and take measures as soon as possible, and the application range is wide. Meanwhile, the problems of insufficient information amount of the recommendation system, lack of accurate recommendation, unequal recommendation of two parties of the recommendation system, lack of bidirectional recommendation, risk of recommendation system data and lack of privacy protection are solved.
Owner:XIDIAN UNIV

Dynamic frequency simulation analysis method considering grid loss variable

The invention discloses a dynamic frequency simulation analysis method considering a grid loss variable. The method comprises the following steps that S1, before a moment t is set, supply and demand of an n node power system are balanced, the frequency of the power system is stable, parameters of the power system are known, the power system is disturbed at the moment t, and the imbalanced power Pacct of the power system at the moment is calculated; S2, according to the adjustment characteristics and negative-load static frequency characteristics of a generator set, an imbalance expression and a grid loss expression of the system at a moment t+1 are established; S3, the grid loss expression obtained in the step 2 is utilized to establish an expanded power flow equation set considering the grid loss variable at the moment t+ based on a conventional tide equation, and a Newton-Raphson algorithm is utilized to calculate the frequency of the power system at the moment; S4, whether t+1 is smaller than the total simulation duration or not, if not, the operation is finished, if yes, the parameters of the power system are calculated by utilizing the step 3 and are substituted into the step S1, and frequency simulation at a moment t+2 is performed.
Owner:DALIAN UNIV OF TECH

Method and system for simultaneous determination of thermal conductivity, thermal diffusivity and heat capacity of low-dimensional materials

The invention belongs to the technical field of thermal testing of low-dimensional materials, and in particular relates to a method and a system for simultaneously measuring the thermal conductivity, thermal diffusivity and heat capacity of low-dimensional materials. The system uses a periodic wave type heat source component with variable frequency as a sine wave heat source, uses an infrared temperature probe to non-contact to collect temperature signals from different parts of the sample, and uses a lock-in amplifier dual-channel to collect periodic waveform signals with high signal-to-noise ratio. Computer processing of signals and data analysis enables simultaneous measurement of thermal diffusivity, heat capacity and thermal conductivity. Based on the Angstrom method, this method proposes a new analytical method by adding frequency variables, which makes it possible to measure the thermal conductivity, thermal diffusivity and heat capacity of a set of tools at the same time, and at the same time increases the consideration of the heat dissipation item m2 , so that the square of the amplitude decay coefficient β is β 2 One more real part m 2 , the accuracy and reliability of the whole set of analytical methods in practical use are greatly improved.
Owner:TSINGHUA UNIV
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