1247results about "Weighing by removing component" patented technology

The invention discloses a method and a system for reflecting a growth state by a spectral curve of a plant leaf under salt mist stress and a storage medium, and relates to the field of plant growth monitoring. Processing the collected leaf image, extracting a leaf main body area, removing an interference part, and matching the filtered original spectral data to obtain target spectral data of the leaf main body area; the method comprises the following steps: combining target spectral data of a leaf main body area with leaf moisture content data, constructing a spectral analysis model by adopting a partial least square method, taking the leaf moisture content as a covariable into the spectral analysis model, peeling off the interference of leaf moisture change on the spectral data, and calculating the leaf moisture content. And finally obtaining a target spectrum curve of the plant leaf under the salt mist stress. A characteristic wave band corresponding to the target spectrum curve is extracted, a plant growth index is constructed according to the characteristic wave band, and the plant growth index is used for reflecting the growth health state of the plant. The problems that traditional monitoring is high in subjectivity, insufficient in precision and low in efficiency are solved.

The invention belongs to the technical field of burning detection. The invention provides a cavity structure for firing residue detection, a detection system and a detection method. The cavity structure comprises a test cavity assembly and an upper cover assembly, the test cavity assembly comprises a cavity shell, an inner cavity body and a lifting driving mechanism, the inner cavity body is arranged in the cavity shell, the output end of the lifting driving mechanism is connected with the inner cavity body to drive the inner cavity body to move up and down, and when the inner cavity body ascends and is matched with the upper cover assembly to complete sealing, an inner cavity space for accommodating the test cup and the sample placing disc is formed; when the inner cavity descends and is separated from the upper cover assembly, the test cup and the sample placing disc are exposed in an outer cavity space formed by the cavity shell and the upper cover assembly; the inner cavity body is provided with an inner cavity heating element for heating the inner cavity space, and / or the upper cover assembly is provided with an upper cover heating element for heating the inner cavity space; according to the invention, the problems of long heating time, poor temperature uniformity and low temperature control precision during detection of the firing residues are solved, and the detection precision of the firing residues is greatly improved.

The invention discloses a sealing structure for a test, and an aging test and leakage rate detection method and system. The sealing structure comprises a tested sealing assembly and an air cavity assembly integrated in the tested sealing assembly, and serialized test samples with different filling rates and compression rates are formed by regulating and controlling the groove width and the groove depth of a sealing ring mounting groove so as to simulate various actual sealing states. An aging test adopts a multi-factor coupling accelerated aging method, and a plurality of material characterization means are combined to systematically evaluate the evolution rule of the sealing performance. According to leakage rate detection, static pressure maintaining and dynamic pressure adjusting dual-mode measurement is achieved through an air tightness detector, and the sealing characteristics under different pressure conditions are comprehensively reflected. According to the invention, direct and systematic detection of the leakage rate of the sealing structure is realized, and an innovative solution is provided for sealing performance evaluation and service life prediction of electrical equipment.

The invention discloses a multi-scale performance evaluation and optimization method and device for well cementation cement stone, and relates to the technical field of oil exploitation, the well cementation cement stone is subjected to nanoindentation test and scanning electron microscope microstructure test, and a mechanical property-microstructure test result is obtained; performing electronic computer tomography and mercury injection test on the well cementation cement stone, and constructing a pore network three-dimensional model; performing triaxial mechanical property test, thermogravimetric analysis and thermal expansion test on the well cementation cement stone to obtain a thermal-mechanical coupling test result; performing X-ray diffraction and X-ray fluorescence spectrum analysis on the well cementation cement stone to obtain mineral phase information and element information of the cement stone; according to the method, a mechanical property-microstructure test result, topological parameters, a thermal-mechanical coupling test result, cement stone mineral phase information and element information are fused, an optimal design scheme for target well conditions is generated, multi-dimensional performance testing and characterization are achieved, and an accurate basis is provided for well cementation cement stone optimal design and quality control.

The invention provides a method for determining microcosmic characteristic influence factors of a shale reservoir. The method comprises the steps of rock core observation, sampling and experiment, and lithofacies type division according to rock core observation and experiment results; performing characteristic evaluation on different types of lithofacies, and determining favorable lithofacies types; analyzing reservoir microscopic characteristics of different types of lithofacies; and according to an analysis result, determining factors influencing the microscopic characteristics of the reservoir. According to the method, favorable lithofacies and reservoir microscopic feature analysis can be comprehensively and effectively carried out, the evaluation accuracy is improved, and the accuracy is improved by 40% and reaches 90%; the working efficiency is improved, invalid work is avoided, the workload of two persons in 10 days is reduced to be completed by one person in 10 days, and lithofacies evaluation and reservoir microscopic feature influence factor analysis can be efficiently completed.

The invention relates to the field of hole sealing agent quality detection, in particular to a nickel-free medium-temperature hole sealing agent drying abrasion resistance detection device and method based on visual image intelligent sensing, and the device comprises a rack which is provided with a visual detection device and a rotating frame capable of rotating; the two sets of supporting structures are rotationally installed on the rotating frame, each supporting structure comprises a plurality of sets of first arc-shaped pieces and second arc-shaped pieces which are circumferentially arranged at equal intervals, and the first arc-shaped pieces and the second arc-shaped pieces can form a cylindrical structure; when the rotating frame rotates, one set of cylindrical structures can be kept in a first state or a second state, and when the cylindrical structures are in the first state, the annular abrasive paper can be driven to rotate; the traction assembly is connected with the first arc-shaped pieces and the second arc-shaped pieces, in the second state, the traction assembly can drive the multiple sets of second arc-shaped pieces to move close to one another, after the second arc-shaped pieces move by a preset distance, the multiple sets of first arc-shaped pieces are driven to move close to one another, and the detection process is simplified.

The invention relates to the technical field of short fiber rate detection, in particular to anti-interference cotton short fiber rate detection equipment and a detection method thereof.The anti-interference cotton short fiber rate detection equipment comprises a workbench and sample cotton wool placed on the workbench, and further comprises a material distributing assembly which comprises an upper material distributing plate movably installed above the workbench, and a lower material distributing plate is installed on the workbench in a sliding mode; and the detection assembly comprises a detection frame movably installed above the workbench, a plurality of first electrostatic rods are fixedly installed on the bottom wall of the detection frame, a plurality of second electrostatic rods are slidably installed on the bottom wall of the detection frame, and the first electrostatic rods and the second electrostatic rods are used for sucking the sample cotton velvet on the lower material distribution plate. Scattered single cotton velvets are picked up in an electrostatic adsorption mode, the two electrostatic rods are used for straightening the cotton velvets, unqualified cotton velvets can only be adsorbed by one of the electrostatic rods, then the two electrostatic rods are disconnected to enable the unqualified cotton velvets to lose the adsorption effect and fall into the collecting tank, the cotton velvets are prevented from being pulled broken, and the detection precision is improved.

The invention discloses a loess collapsibility evaluation method and system based on a geophysical prospecting test technology, and relates to the field of land exploration, and the method comprises the steps: laying regular detection grids in a to-be-evaluated loess site, and constructing a site geographic coordinate system; collecting Rayleigh wave signals in real time, inverting a transverse wave velocity profile, and collecting apparent resistivity data; a shallow soil sample is drilled, soil property parameters are measured, and a model is constructed according to the mapping relation between the field geophysical prospecting parameters and the soil property parameters; inputting the acquired data into the wave velocity-water content correlation model and the resistivity-dry density correlation model to generate a water content distribution field and a dry density distribution field; and calculating the collapsibility of loess in each detection grid based on a geophysical prospecting response equation of the collapsibility coefficient, outputting a collapsibility coefficient contour cloud picture, and judging the collapsibility grade of each grid and the distribution range of collapsed loess. The method has the advantages that the collapsibility distribution field and the contour cloud picture are generated through accurate non-intrusive data acquisition and model analysis, and a scientific basis is provided for engineering construction.

The invention belongs to the technical field of evaporation residue detection. According to the cavity mechanism, the detection system and the detection method for evaporation residue detection, an upper cover assembly is provided with a sample placing opening used for filling a sample and a cup taking opening used for taking a test cup for weighing, opening and closing of the sample placing opening are controlled through a front cover assembly, so that only part of the test cup is exposed when the sample is filled; the problems that the test cavity side opening cover cannot accurately and quantitatively inject the sample liquid and the injection pipe cannot be cleaned are solved, and the influence on other test cups during sample injection is avoided; opening and closing of the cup taking opening are controlled through the cup taking opening cover assembly, so that during weighing testing, only a to-be-weighed testing cup is exposed every time, the influence on other testing cups during weighing is avoided, and through arrangement of the sample placing opening and the cup taking opening, the environmental influence is effectively avoided, and the testing precision is improved.

The application belongs to the technical field of animal models for basic scientific research, and particularly relates to a method for establishing an acute lung injury animal model, which comprises the following steps: sending a podophyllotoxin or a podophyllotoxin reagent into a rat body through oral administration or intragastric perfusion to obtain the acute lung injury animal model. The method for establishing the acute lung injury animal model provided by the application uses the podophyllotoxin as an inducer for establishing a mouse acute lung injury model, and the mouse can orally take or intragastrically perfuse the podophyllotoxin to achieve the method, without needing a special medicine injection device, so that the method is simple in medicine taking, few in experimental steps, and does not need complex surgical operations.

The invention belongs to the technical field of dry pulverized coal gasifiers, and discloses an experimental method for CaO to catalyze high-temperature coke high-pressure gasification reaction under different atmospheres, which comprises the following specific steps: step 1, preparing experimental raw materials and pretreating to select representative coal types; the diffusion environment of the industrial gasifier is simulated by establishing a cooperative regulation and control mechanism of pressure, gas velocity and pore structure, the thickness of a boundary layer is calculated according to the Fick diffusion law, a diffusion resistance quantitative relational expression is constructed for dynamic correction, and a variable diffusion strength experimental group is designed to quantify diffusion contribution. The diffusion and reaction rate ratio is quantitatively evaluated through a Weber number model, a catalysis and blank control synchronous experiment is carried out at the same time, a catalysis efficiency factor is calculated, a catalysis-diffusion synergistic phase diagram is drawn, and a reaction control region, a diffusion control region and a transition region are definitely defined; and the risk that the reaction stagnation caused by the fact that the high-pressure diffusion retardation effect is misjudged as catalytic activity attenuation or pore collapse is mistakenly attributed to catalyst deactivation is eliminated.

The invention provides a graphitization furnace comparison verification temperature measurement method and system and a medium, and the method comprises the steps: obtaining the parameter information of a graphitization furnace, and setting a plurality of infrared high-temperature thermodetectors and a plurality of memory graphite rods; collecting real-time temperature data of the furnace core area, and analyzing and processing the real-time temperature data to obtain infrared temperature measurement data; taking out the plurality of memory graphite rods from the graphitization furnace, and carrying out multi-dimensional measurement analysis on the memory graphite rods based on a plurality of measuring instruments to obtain burning loss degree quantitative data; performing maximum temperature inversion on the memory graphite rods placed at different positions of the furnace core area based on the burning loss degree quantitative data to obtain maximum temperature distribution conditions of different positions of the furnace core area; the infrared temperature measurement data and the highest temperature distribution condition of the memory graphite rod are compared and verified, and the real temperature of the furnace core area is obtained; through combination of the infrared high-temperature measuring instrument and the memory graphite rod, cross validation is realized, and the accuracy of a temperature measurement result is improved.

The invention belongs to the technical field of high voltage and insulation, and relates to an XLPE breakdown field strength evaluation method and system based on gel content and preparation process, and the method comprises the following steps: S1, sampling, weighing, shearing and bagging; s2, extracting, weighing and calculating the gel content; s3, constructing an evaluation model; s4, predicting the breakdown field intensity; according to the technical scheme, the physical model fusing the cross-linking enhancement effect and the thermal damage effect is constructed, the breakdown field strength is predicted based on the physical model, accurate and rapid evaluation of the XLPE insulation performance under different process conditions can be achieved only through a small amount of breakdown test data calibration model, dependence on a traditional destructive electrical test is remarkably reduced, and the reliability of the XLPE insulation performance is improved. The test cost is greatly reduced, the research and development period is greatly shortened, and an effective tool is provided for cable insulation material performance analysis and production process optimization.

The invention provides a gold ore phase analysis method, and belongs to the field of mineral analys.The gold ore phase analysis method comprises the steps that a gold ore sample is prepared into ore pulp, the pH value is adjusted to 10-11, ultrasonic cavitation treatment is conducted after polyethylene glycol is added, and limonite turbid liquid and sedimentation bottom mud are obtained through separation; the turbid liquid is subjected to flocculation precipitation, drying, roasting, acid dissolution and impurity removal, and the limonite gold-loaded grade is obtained through the mass difference before and after dissolution and gold concentration determination; separating metal sulfide ore heavy minerals and gangue minerals from the settled bottom mud through artificial heavy elutriation, performing acid dissolution and impurity removal on the metal sulfide heavy minerals, and calculating the gold loading grade of the metal sulfide heavy minerals through mass difference and gold concentration determination; after gangue minerals are subjected to oxidizing roasting, the gold content is measured after concentrated acid dissolution; and calculating the distribution rate of gold based on the result. The gold loading grade and distribution of the limonite phase, the metal sulfide ore phase and the gangue mineral phase are measured in a split-phase mode, the method is highly matched with the gold ore development process, operation is easy and convenient, the result is reliable, and beneficiation and metallurgy technological process formulation and technical index pre-judgment can be effectively served.

The invention relates to the field of heating characteristics of samples, and particularly provides a macro sample temperature jump type in-situ thermal analysis system and a macro sample temperature jump type in-situ thermal analysis method. The system is characterized in that a driving unit is arranged on a guide rail and is suitable for doing vertical movement along the guide rail; the guide rail is perpendicular to the ground; the tubular electric heating reaction unit is connected with the driving unit, and after the tubular electric heating reaction unit is heated to a target temperature, the driving unit drives the tubular electric heating reaction unit to move to the periphery of the sample placing unit, so that a macro sample in the sample placing unit is instantly heated; the accuracy of analyzing the thermogravimetry of macroscopic samples and the precipitation characteristics of volatile matters in simulated industrial application can be improved; the balance measuring unit is connected above the sample placing unit, and the initial position of the tubular electric heating reaction unit is located at the lower end of the guide rail, so that the sample placing unit and the balance measuring unit are kept stable in the process of placing a macroscopic sample into the sample placing unit, and the weighing error during sample weighing and sample reaction is reduced.

The invention discloses a full-automatic crushing and detecting method and system for grain particle materials, and relates to the technical field of crushing and detecting. The method comprises the following steps that 1, whether first unprocessed grains are unhulled rice or not is judged, if the first unprocessed grains are not the unhulled rice, the next step is executed, otherwise, if the first unprocessed grains are the unhulled rice, the step 3 is executed, 2, volume fixing treatment is conducted on the first unprocessed grains, the step 4 is executed, 3, volume fixing treatment is conducted on the unhulled rice, the unhulled rice is hulled through a rice huller module, and brown rice is obtained; step 4, judging whether the moisture content of unhulled brown rice exceeds 15% or not, if the moisture content does not exceed 15%, skipping to step 7, if the moisture content exceeds 15%, executing the next step, and if the moisture content does not exceed 15%, executing step 4, and if the moisture content does not exceed 15%, executing step 5; according to the invention, automation and unmanned operation of the whole process of crushing, quantitative weighing, liquid adding, oscillation extraction, separation, pipetting, dilution, incubation and physicochemical index detection of a sample can be realized.

A testing device for measuring oil, gas and water contents in rock has a heating desorption unit that has a sample chamber for placing a rock sample to be detected, a crushing mechanism arranged within the sample chamber, and a heating mechanism. The heating desorption unit crushes and heats the rock sample in a sealed manner to achieve gas analysis and desorption analysis of oil and water contained therein, thus obtaining components to be detected. The device further has a cold trap collection unit in communication with the sample chamber, a light hydrocarbon capture unit in communication with the cold trap collection unit, a gas measuring unit in communication with the light hydrocarbon capture unit for measuring and calculating a gas volume; and a central control unit for controlling the testing device.

The invention relates to a life evaluation method suitable for an initiating explosive material in a temperature and pressure dual-stress environment, and belongs to the technical field of initiating explosive devices. According to the method, by establishing the temperature and pressure dual-stress accelerated aging test method for the initiating explosive material, a mathematical model adaptation method is adopted to research the performance degradation law of the initiating explosive material in the temperature and pressure environment, and a pre-estimation model of the storage life in the temperature and pressure environment is established; the storage life data of the initiating explosive material in the temperature and pressure environment is obtained, the reliability analysis of the initiating explosive material in the temperature and pressure dual-stress environment is more comprehensive and accurate, and the method is suitable for the reliability analysis of various initiating explosive materials in the temperature and pressure dual-stress environment; and corresponding data basis and theoretical basis are provided for storage environment requirements and working reliability of initiating explosive devices.

The invention discloses a carbon fiber reinforced plastic resin insoluble component content detection method, which comprises: taking a carbon fiber reinforced plastic sample to be detected, adding a mixed solvent, placing in an ultrasonic cleaning machine, carrying out oscillation extraction, drying, placing the sample in a digestion container, carrying out a digestion reaction, carrying out suction filtration, cleaning, and drying to obtain the carbon fiber reinforced plastic resin insoluble component content. The mass of the carbon fiber sample to be detected after digestion treatment is obtained through weighing, and then the resin content of the carbon fiber reinforced plastic and the resin insoluble component content of the carbon fiber sample to be detected are calculated. The detection method provided by the invention solves the problem that the resin content and the resin insoluble component content of the same carbon fiber reinforced plastic sample cannot be detected at the same time; the method is high in detection precision, can accurately reflect the real condition of the insoluble component content of the material resin, and effectively overcomes the defects that a traditional method is greatly influenced by human factors and is high in randomness.

The utility model discloses a top-hitting type sieve shaker with an elutriation function, and belongs to the technical field of sieve shakers. Comprising a vibrating screen module and an elutriation module, the vibrating screen module comprises a vibrating tray, a vibrating motor is arranged at the bottom of the vibrating tray, a screen placement platform is arranged at the top of the vibrating tray, a combined screen composed of a plurality of sets of screens is arranged at the top of the screen placement platform, and the elutriation module comprises an elutriation container arranged on the outer side of the combined screen in a sleeving mode; a drainage pipeline is arranged at the bottom end. According to the invention, the elutriation function is added, the function of integrating vibration, screening and elutriation is realized, the elutriation efficiency of laboratory aggregate is improved, indexes such as water consumption and energy consumption of an elutriation test are quantified conveniently, and reliable support is provided for mining production design and economic evaluation.

The invention belongs to the technical field of salt spray tests, and particularly relates to a test device and method for simulating hot corrosion of an engine turbine blade material, and the method comprises the following steps: after a sample is cleaned and dried, a nozzle is controlled by a mechanical arm to atomize a saturated salt solution, and the saturated salt solution is precisely sputtered to the surface of the sample preheated to 300-500 DEG C to form a uniform salt film; the sample is placed in a heating furnace at the temperature of 600-1000 DEG C to be subjected to heat preservation for 50-55 min and then cooled by compressed air for 5-10 min, and cold and hot circulation A corrosion kinetic curve is drawn based on the unit area weight increment, corrosion products are removed through a molten alkali electrolysis method, and the hot corrosion rate is calculated. The device comprises a groove type test bed with a high-temperature-resistant coating, a slit type nozzle driven by a mechanical arm, an infrared heating device and a cold and hot circulation system. According to the method, the salt film is deposited through precise position control of the mechanical arm, the cold and hot alternating working condition is simulated, the problems that a traditional salt coating method is not uniform and a salt leaching method is distorted in environment are solved by combining corrosion dynamics and microscopic characteristic analysis, and scientific evaluation of the corrosion resistance of the aero-engine blade material is achieved.

The invention belongs to the field of agricultural computer electronics, and particularly discloses a winter wheat nitrogen nutrition diagnosis and nitrogen demand estimation method based on hyperspectral data, which comprises the following steps: acquiring winter wheat canopy spectral data by adopting an ASD FieldSpec4 hyperspectral spectrometer, and measuring the nitrogen concentration and biomass of winter wheat leaves at the same time; and estimating the nitrogen concentration and biomass in combination with a one-dimensional convolutional neural network model. And based on the estimation result, calculating the nitrogen nutrition index by using a critical nitrogen dilution curve, and establishing a nitrogen demand estimation model comprehensively considering the number of days after sowing, the nitrogen fertilizer recovery efficiency and the nitrogen nutrition index. The method provides powerful support for accurate management of the winter wheat nitrogen fertilizer.

The invention discloses a carbon sequestration efficiency influence factor determination method, and the method comprises the steps: determining a plurality of rock samples to be processed; determining respective carbon sequestration amounts of the plurality of rock samples; wherein the carbon sequestration amount refers to the amount of carbon dioxide stored in the rock sample after the rock sample is subjected to carbon sequestration treatment; based on the respective carbon sequestration amounts of the plurality of rock samples, determining carbon sequestration efficiencies respectively corresponding to the plurality of rock samples; and analyzing the carbon sequestration efficiency corresponding to the plurality of rock samples, and determining the carbon sequestration efficiency influence factor of the rock. By analyzing the carbon sequestration efficiency, a key bottleneck limiting the carbon sequestration capacity can be found out, the mineralization sequestration efficiency of basalt is improved, and a scientific basis is provided for optimizing geological sequestration conditions.

The invention relates to a system and a method for measuring the content of free ionomers in high-solid-content catalyst slurry of a fuel cell, and belongs to the technical field of analysis of catalyst slurry of the fuel cell. Separating the catalyst slurry into a supernatant containing free ionomers and a catalyst aggregate precipitate; the filtering device is used for filtering the supernate and removing residual solid particles in the supernate to obtain filtrate; the evaporation device is used for carrying out drying treatment on the filtrate obtained after filtration, and completely evaporating solvent components in the liquid to obtain free ionomer solids; and the weighing device is used for accurately weighing the materials in the centrifuging, filtering and drying processes. Compared with the prior art, the system and the method for measuring the content of the free ionomer in the catalyst slurry of the fuel cell, which are provided by the invention, are accurate in measurement result and wide in applicability through the processes of centrifuging, filtering and drying and accurate weighing.

The invention discloses a method for judging and optimizing a raw material ratio in microwave synergistic pyrolysis, and relates to the technical field of solid waste recycling and biomass energy utilization. In order to overcome the defect that in-depth research and engineering application of a microwave pyrolysis process are restricted in the prior art, the technical scheme provided by the invention comprises the following steps: preparing samples from oily sludge and palm kernel shells according to a preset mass ratio, and mixing to obtain a mixed raw material; establishing an inert atmosphere and forming a controlled reaction system; applying microwave heating and collecting a sample mass change curve and temperature change data; comparing the mass change curve with a theoretical curve formed by weighted stacking of a single raw material pyrolysis curve to obtain a difference result; judging the synergistic effect strength among the raw materials according to the difference result, and outputting a synergistic effect judgment result; and determining an optimal ratio based on a synergistic effect judgment result. The method is suitable for raw material ratio judgment and optimization work of solid waste and biomass under the microwave synergistic pyrolysis condition.

The invention discloses a cable joint early-stage defect detection method based on escaped gas, and relates to the technical field of high-voltage power transmission cable defect detection. The method comprises the following steps: collecting escape gas in a copper shell cavity of the cable joint; performing quantitative detection on the target small molecule gas in the escaping gas; and if the escaped gas contains the target small-molecule gas or the characteristic parameters such as the concentration and the growth rate of the target small-molecule gas exceed preset values, judging that the cable joint has defects. The severity degree of defect development can be judged by quantitatively detecting the small molecule gas and comparing the small molecule gas with the gas content calibrated by a specific defect. According to the invention, target small molecule gas caused by defects in escaping gas in the cavity of the copper shell is detected aiming at the cable joint which is not filled with the waterproof pouring agent, so that early defect detection of the cable joint is realized.

The invention discloses a full-automatic coke size fraction inspection method which comprises the following steps: automatically sampling by a sampler, and calculating the sampling times and the sampling interval time according to the number of discharging vehicles, the discharging duration and the total weight of the required sample amount; a forward and reverse rotation belt is used for division treatment, a screened sample enters a secondary collection hopper through a bucket elevator during forward rotation, and a work-separated sample enters a sample collection barrel during reverse rotation; opening the secondary collection hopper to enable the samples to uniformly enter a vibrating screen for screening, enabling the samples screened by the vibrating screen to respectively enter sample collection barrels of various size fractions, arranging an electronic platform scale below each sample collection barrel, and connecting the electronic platform scales with a mass metering system; and the mass metering system automatically reads the weight data of the electronic scale, calculates the coke proportion of each particle fraction according to the total weight added by each particle fraction and the unit weight of each particle fraction, and automatically generates a quality grade according to a preset quality judgment rule. According to the invention, the accuracy and reliability of coke fraction inspection can be improved, the labor intensity is reduced, and the inspection efficiency is improved.

The invention relates to the field of road engineering material detection, in particular to a method for obtaining emulsified asphalt residues and measuring the content through medium and low temperature evaporation. Comprising the following steps: providing an evaporation container assembly containing an emulsified asphalt sample with preset mass, and sequentially weighing the mass of the evaporation container assembly before and after containing; placing the evaporation container assembly and the contents thereof in an environment of 130-140 DEG C for heat preservation for 80-100 min, and stirring the contents at least once in the heat preservation stage; transferring the evaporation container assembly and the contents thereof to an environment at 60-70 DEG C, and preserving heat for 230-250 minutes to obtain emulsified asphalt evaporation residues; and after cooling, weighing the total mass of the evaporation container assembly and the contents of the evaporation container assembly, and calculating the content of the emulsified asphalt evaporation residues. The method overcomes the problems of asphalt aging distortion caused by high temperature in the traditional method and low efficiency, poor accuracy and poor repeatability in the existing medium and low temperature method.

The invention relates to the technical field of soil disintegration measurement, and discloses a test device for a soil disintegration test, which comprises a shell, the outer wall of the shell is rotatably connected with a turntable, the top of the shell is fixedly connected with a suspension rod, the outer wall of the suspension rod is fixedly connected with an iron wire net, and the inner wall of the iron wire net is fixedly connected with a soil taking knife sample. When a cylinder rotates, two balancing weights slide in the direction away from each other, a ball head is extruded to make contact with inclined faces on two spoilers, the two spoilers are extruded to move in the direction away from each other, and the water contact area of the two spoilers and the outer wall of a fixed shell is increased; water is driven to rotate along with the cylinder under the limitation of the flow guide plate, and part of water flow can pass through the flow guide holes in the flow guide plate, so that the rotating speed difference generated by inner and outer water bodies due to instantaneous acceleration of the cylinder is effectively reduced, and then local vortex is generated.

The invention provides a fruit and vegetable quality analysis method and system based on near infrared spectrum detection, and relates to the technical field of food detection.The fruit and vegetable quality analysis method comprises the steps that near infrared spectrum data of all surface areas of a fruit and vegetable sample are collected, statistical characteristics such as interval mean values, standard deviations and extreme values are extracted through preprocessing and spectrum level fusion, spectral feature vectors are constructed, and the near infrared spectrum data of all the surface areas of the fruit and vegetable sample are analyzed; calculating a comprehensive quality score by using a Gaussian membership function, performing clustering based on a K-value clustering method and setting constraint conditions, dynamically adjusting an initial clustering center, forming a first clustering set, then constructing a neural network model, optimizing model parameters by using a mean square error loss function, and obtaining the comprehensive quality score; and comparing the distance with the center of each clustering subset to accurately determine the quality category of the fruits and vegetables. According to the invention, through collection of the near infrared spectrum data of the fruits and vegetables and construction of the neural network quality prediction model, accurate prediction and automatic classification of the quality of the fruits and vegetables are realized.