36results about How to "Save experimental resources" patented technology

The invention belongs to the field of compensation for aircraft magnetic disturbance fields, and particularly relates to an aircraft magnetic disturbance field model parameter calculating method. The aircraft magnetic disturbance field model parameter calculating method comprises the steps of measuring an environment magnetic field of a tested area, measuring a fixed magnetic field and an inductive interference field of a carrier, calculating model parameters of the inductive interference field, measuring a vortex interference field of the carrier, and calculating model parameters of the vortex interference field. The three magnetic disturbance fields of the carrier are measured and calculated gradually in the testing process, and testing pertinence is enhanced; calculating errors caused by the carrier movement coupling according to a traditional method are avoided by effectively controlling the carrier to move; calibration flying necessary in the traditional method is avoided through off-line tests and calculation, and testing resources are saved; the magnetic field of the testing environment can be effectively controlled, and errors caused by the unstable magnetic field of the tested area according to the traditional method are avoided.

The invention is suitable for a virtual experiment table which is realized mainly through a 3D holographic imaging technology and a somatosensory technology. Specifically, the invention provides a virtual experiment table which can almost completely replaces an existing student experiment table, and students can experience operation processes of replication experiments in person, and according to operation of the students, the virtual experiment table shows different experiment results for the students. The virtual experiment table has six main functions of 3D imaging, motion identification, face identification, experiment selection, operation error correction, and experimental demonstration, so as to solve problems in conventional experiment teaching processes that students are lack of operational ability and deep understanding for various experiment phenomenon, and that consumption of various experimental equipment is large.

The invention discloses a method for predicting the cycle life of a lithium battery and application of the method. The method comprises the steps that a capacity attenuation model shown in the formulaI is established, Qloss represents the capacity loss rate, T represents the cycle temperature, N represents the number of cycles, and alpha, beta, gamma and lambda are all model parameters to be solved; determining experiment conditions according to the battery type and the battery use temperature range, and performing battery charge-discharge cycle test under different experiment conditions to determine values of model parameters alpha, beta, gamma and lambda, thereby obtaining a capacity attenuation model suitable for a specific battery type; and utilizing the obtained capacity attenuationmodel to predict the cycle life of the same type of to-be-tested battery at a specific use temperature. The prediction method is higher in accuracy, can more accurately predict the cycle life of the similar battery at a certain cycle temperature, provides technical support and theoretical basis for replacement when the battery reaches the end of the life, can reduce the test cost, shortens the test period and saves the experimental resources, and is suitable for popularization and application.

The invention relates to an aluminum anode oxidation dual-test-piece experiment device which comprises a DC (direct-current) stabilized power supply and a glass container, wherein the glass container are symmetrically provided with two combined lead electrodes; the middle part of the glass container is provided with two anode oxidation test pieces; two negative electrode leads out of a DC stabilized power supply negative electrode terminal are respectively connected to the middle parts of the upper surfaces of the two combined lead electrodes; and two positive electrode leads out of a DC stabilized power supply positive electrode terminal are respectively connected with upper ends of the two anode oxidation test pieces. The experiment device has the most obvious characteristic that dual test pieces can be tested simultaneously, so that the speed and efficiency for preparing test pieces are greatly improved, the research process is accelerated greatly, and limited experiment resources can be saved.

The invention discloses a semi-physical simulation system for an offshore full-power wind power converter. The semi-physical simulation system comprises an upper computer, a real-time simulation unitand a physical control unit. The upper computer is used for inputting simulation parameters of a wind power converter and outputting a simulation control instruction. A main circuit model of the windpower converter is stored in the real-time simulation unit. And the simulation unit is used for simulating the main circuit model according to the simulation control instruction in the current simulation step length, outputting a first signal corresponding to the current simulation step length to the physical control unit, and simulating the next simulation step length of the main circuit model according to a second signal corresponding to the current simulation step length fed back by the physical control unit. The physical control unit is used for processing the first signal corresponding tothe current simulation step length according to a locally stored control algorithm and a logic algorithm; and the processing result is used as a second signal corresponding to the current simulationstep length, and the second signal is fed back to the real-time simulation unit, so that the real-time simulation unit performs simulation of the next simulation step length according to the second signal.

The invention particularly relates to a method for simulating silicon dioxide coated calcium fluoride by using Matrials Studio software, which comprises the following steps: 1) constructing an initialmodel to be calculated by using software to obtain a silicon dioxide calcium fluoride molecular structure data file; 2) performing structure optimization on the initial model by utilizing a Force module in software; 3) performing molecular dynamics operation on the model by utilizing a Force module in software; 4) performing dynamic analysis on the model after dynamic processing; 5) calculating the interface distance and energy of the silicon dioxide calcium fluoride molecular structure to obtain distance and energy parameters; and 6) calculating to obtain the adsorption energy between the silicon dioxide and the calcium fluoride. Silicon dioxide coated calcium fluoride with complex procedures in the experiment process is simulated through the computer, detailed analysis is carried out from the atomic level, an experimenter is helped to analyze the simulated coating result, the experiment period is effectively shortened, the experiment cost is saved, a large number of experiments areavoided, and the safety of the experimenter is guaranteed.

The invention relates to a measurement target for characterizing shock wave speed of a medium Z opaque material and a method, and belongs to the technical field of high-pressure characteristics of thematerial. The measurement target is located at a diagnostic hole of a drive black cavity and comprises an ablation layer, a tracer layer and a sample layer, wherein the ablation layer is arranged toface the diagnostic hole; the tracer layer is made of a transparent material; the sample layer is a medium Z opaque material sample layer, is of a stepped structure and comprises a first sample layer,a second sample layer and a third sample layer which are arranged side by side in sequence, and the thicknesses of the first sample layer, the second sample layer and the third sample layer are increased in sequence. Compared with a traditional wedge-shaped sample, planar sample design is adopted, machining is easy, the machining precision is high, higher-precision measurement can be realized, the requirement for experimental conditions can be broadened to the greatest extent, an experimental result derives from the same driving source, possible difference of the experimental conditions between different times is eliminated, consistency and reliability of data are guaranteed, and meanwhile, experimental resources are saved.

The invention provides a device for analyzing and detecting a reaction gaseous product, comprising a reaction unit, a separation unit, a detector, and the like, wherein the reaction unit is a high pressure reaction kettle, the lid of which is provided with a pressure gauge, an air inlet and an air outlet; one end of the air inlet is connected to the gas source through a pipeline and a regulating valve, and the other end is connected into the high pressure reaction kettle; one end of the air outlet is connected into the high pressure reaction kettle, and the other end is connected to the separation unit through the pipeline, the regulating valve and a gas flow meter; finally the gas of the reaction unit is analyzed by the detector, and an electric heater is provided around the kettle chamber to provide required temperature for the reaction kettle. The invention can be used for inspecting the gaseous catalytic reaction efficiency or detecting the gaseous product generated during some reaction processes by changing the filling mode of the high pressure reaction kettle and the kettle lid structure, and has the advantages of simple structure, convenient operation and low cost.

The invention discloses a method of predicting a gap between a model tail cavity and a supporting rod for a wind tunnel test, and relates to the field of experimental fluid mechanics. The method comprises: representing the gap between the model tail cavity and the supporting rod by utilizing a difference value of physical data and characteristic data, wherein the physical data comprises a model tail cavity radius and a supporting rod radius, and the two radiuses are in a difference relation, the characteristic data comprises deflection angle data, model tail cavity supporting rod displacementand supporting rod head displacement, and the deflection angle data and the model tail cavity supporting rod displacement are summed and subtracted from the supporting rod head displacement to obtainan absolute value, the deflection angle data comprises a distance between the model tail cavity and a supporting rod head and a sine value of a model deflection angle, and the two are in a product relation. The method is simple, easy to use and convenient to implement, and can predict the collision of the model and the supporting rod before an experiment is carried out, thereby helping to improveexperiment planning, being conducive to improving experiment precision and experiment efficiency, and saving experiment resources.

The invention discloses a prediction method for a gap between a model tail cavity and a supporting rod for a wind tunnel test, and relates to the field of experimental fluid mechanics. The method comprises the step of representing a gap between the model tail cavity and the supporting rod by utilizing a difference value of physical data and characteristic data. The physical data comprises a modeltail cavity radius and a supporting rod radius, and the two radiuses are in a difference relation. The characteristic data comprises deflection angle data, model tail cavity supporting rod displacement and supporting rod head displacement, and the deflection angle data and the model tail cavity supporting rod displacement are summed and subtracted from the supporting rod head displacement to obtain an absolute value. The deflection angle data comprises the distance between the model tail cavity and the supporting rod head and the sine value of the model deflection angle, and the two are in a product relation. The method is simple, easy to use and convenient to implement, and can predict the collision between the model and the support rod before an experiment is carried out, and the methodfacilitates improving experiment planning, improving experiment accuracy and experiment efficiency and saving experiment resources.

The invention discloses a search engine based data processing method and platform. The method includes: acquiring N*r pieces of initial statistical information within N time periods through search results of a search engine; performing weighted merging on a first average and a first variance of r sample sizes corresponding to r set click positions within each of the N time periods by taking respective sample sizes as weights so as to obtain a second average and a second variance after the positions within each of the N time periods are merged; performing weighted merging on the second average and the second variance on time after merging of the N positions so as to obtain an overall average and an overall variance corresponding to the N time periods; acquiring a statistic used for A/B test according to the overall average and the overall variance. By the method and platform, effective inspection can be performed on indexes in internet search through A/B test, and scientific and objective bases are provided for analysts for experiment effect evaluation.

The invention belongs to the field of pharmacological research of active ingredients of traditional Chinese medicine, and particularly discloses a pharmacological prediction method for anti-tumor angiogenesis key targets of oldenlandia diffusa, which comprises the following steps: 1) constructing modules including an oldenlandia diffusa ingredient database module and an anti-tumor angiogenesis target module; 2) using molecular docking software to read components and target spots in the modules in batches for molecular docking, and obtaining docking scores; and 3) according to a docking scoring result, constructing a component-target action relationship database to analyze the anti-tumor angiogenesis key active substances of the oldenlandia diffusa and the targets thereof. According to the method, the oldenlandia diffusa active ingredient module and the anti-tumor angiogenesis target spot module are constructed from the construction of the database module through a data evaluation method, and the data module is called through molecular docking software to perform high-throughput simulation docking, so that accurate prediction of the oldenlandia diffusa anti-tumor angiogenesis key target spot is realized, and the prediction accuracy of the oldenlandia diffusa anti-tumor angiogenesis target spot is improved. And experimental research can be better guided.

The invention provides a visible light communication data transmission system applied to a space life science experiment, which comprises a stator plate and a rotor plate, the stator plate is arranged on a load electric cabinet, the rotor plate is arranged on a centrifugal machine, the stator plate and the rotor plate are both provided with communication units, and when a rotor of the centrifugal machine rotates, the communication units are connected with the stator plate and the rotor plate. A bidirectional communication link is established between the rotor plate and the stator plate. According to the visible light communication data transmission system applied to the space life science experiment, the circuit board is installed at the center of the centrifugal machine, the same circuit board is oppositely installed on the load box body, two-way communication is achieved, scientific data generated in a gravity control experiment unit can be downloaded, and the data transmission efficiency is improved. The current situation that complex control experiments are difficult to carry out simultaneously in gravity control experiments and microgravity experiments of space science instruments can be changed, on-orbit replacement of experiment units is supported, and advancement of the space science instruments in China can be guaranteed. A plurality of complex control experiments can be carried out at the same time, and microgravity scientific experiment resources are saved.

The invention discloses a mixed reality-based electric appliance test method and device. The device comprises an acquisition unit, a display unit and a somatosensory unit, wherein the acquisition unitis used for acquiring three-dimensional scene information of an electric appliance in a first room and somatosensory information of a plurality of sites in the first room; the display unit is used for displaying a virtual first room for a tester according to the three-dimensional scene information; and the somatosensory unit is used for enabling the tester to obtain somatosensory of correspondingsites in the first room according to the current sites of the somatosensory information and the tester in the virtual firs room. Through displaying the virtual first room, the tester can obtain visual experience same as the first room and the tester can obtain somatosensory same as the first room, so that users do not need to reach the first room to carry out electric appliance test, thereby saving the roundtrip time, saving the experiment resources, reducing the cost, enabling the tester to test electric appliances at a plurality of different places, and improving the test efficiency.