47results about How to "Analytical data is reliable" patented technology

The invention relates to microstructure classified display and quantitative detection technology in iron and steel material, belongs to the field of iron and steel material, and particularly relates to a classified display and quantitative detection method for martensite and residual austenite in low-alloy granular bainite steel martensite / austenite island (M-A island). The method comprises steps: (1) a grinding and mechanical polishing method is used for preparing a low-alloy granular bainite steel metallographic sample; (2) an electrolytic polishing method is used for removing the stress layer on the surface of the metallographic sample, a nitric acid alcohol solution of 2wt% to 6wt% is then used for carrying out pre-corrosion for 5 to 15s, and absolute alcohol is finally used for ultrasonic cleaning for 10 to 20m; (3) the metallographic sample after ultrasonic cleaning is placed in a furnace free of atmosphere protection at the temperature of 150 to 300 DEG C for heat preservation for 2 to 6 hours, and when getting out of the furnace, the metallographic sample is placed in a dryer for air cooling till the room temperature; (4) the microscopic structure is observed in a metallographic microscope, wherein polygonal ferrite and bainitic ferrite are bluish violet, the martensite is brown and the residual austenite is off-white; and (5) distribution of each phase of the structure and quantitative analysis are carried out.

The invention discloses a method of catalytic resonance scattering spectral determination of mercury by using aptamer modified nanogold, which comprises the following steps: Hg2+ aptamer ssDNA and nanogold are combined to form nanogold AussDNA modified by DNA, stable Hg2+aptamer-Hg2+compound is generated by T-T mismatching when Hg2+ and AussDNA coexist, nanogold is gathered under the action of high-concentration NaCl, redundant AussDNA in filtrate after membrane filtration is taken as a nano catalytic seed crystal to catalyze the reaction of Cu2+ and furfural so as to reduce Cu2+ into Cu+, Cu+ reacts with OH- in solution to generate CuOH, and finally generate Cu2O particles. From the above preparation method, a determined system and a reagent blank system of mercury concentration can be known, resonance scattering strength of the two systems are measured at the 605nm part, drawn into a standard curve, and then prepared into a sample detection system, a deltaI sample is solved, the mercury content in the sample is calculated on the standard curve. The invention has the advantages of high sensitivity, strong specificity, wide determination range, simple equipment, and convenient operation, is suitable for determining various samples containing mercury, and provides reliable analysis data for environment monitoring, foods, cosmetics and other fields.From the above method, a determined system and a reagent blank system of which the mercury concentration is known can be prepared, resonance scattering strength of the two systems are measured at the 605nm part and drawn into a standard curve, and then a sample detection system is prepared, delta I sample is calculated, the mercury content in the sample is calculated by the standard curve.The invention has the advantages of high sensitivity, strong specificity, wide determination range, simple equipment, and convenient operation, and is suitable for determining various samples containing mercury.

The invention provides a quality inspection method for a QA system, comprising the following steps of: firstly, obtaining the business hierarchy relationship of the QA system, obtaining each filed of the QA system, and setting the weight of each field as well as the weight of sampling amount and the weight of sampling quality of each inspected person; secondly, obtaining the sampling amount of questionnaires of each inspected person in each field according to the weight of the sampling amount and the weight of the sampling quality so that the sampling condition of each inspected person in each field can be acquired; and extracting sample data according to the sampling condition; and thirdly, analyzing the sample data to obtain the result of quality inspection. The method can carry out polydimensional allocation of extraction conditions and execute the quality inspection with emphasis and definite purposes so as to provide clear and reliable analysis data for human resources and market operation, thus helping enterprises improve the work efficiency.

The invention discloses a sample preparation method by fusing medium-carbon ferrochrome and high-carbon ferrochrome, which comprises the following steps of: (1) suspending wall: fusing lithium tetraborate in a platinum crucible, and rotating the platinum crucible, so that the fused lithium tetraborate is evenly suspended at the side wall and the bottom of the surface in the crucible, and a fusion agent crucible is formed; (2) previously oxidizing: mixing oxidizing agent with a standard sample or a sample to be tested of the medium-carbon ferrochrome or the high-carbon ferrochrome, and oxidizing in the fusion agent crucible which is cooled to be room temperature; (3) fusing: fusing the previously-oxidized standard sample or the sample to be tested; and (4) preparing a sample glass piece: cooling the fused standard sample or the sample to be tested to be room temperature, and forming the glass piece of the standard sample or the sample to be tested by the fused sample. Therefore, the influence of line spectrum peak shift or spectrum peak shape change and the like to an analysis result caused by the inconsistent absorption and enhancement effect, the mineral effect, the surface effect, the granularity and the analysis element chemical valence among ferrochrome alloy elements can be effectively eliminated.

A nonlinear ultrasonic detection method for evaluating the thermo-oxidative ageing of an organic material comprises the following steps: building an organic material thermo-oxidative ageing damage nonlinear ultrasonic detection system based on a nonlinear acoustic detection system; respectively setting corresponding parameters of an excitation signal and a reception signal, and finely adjusting the corresponding parameters of the excitation signal and the reception signal by a time domain waveform signal observed and received by an oscilloscope; selecting the optimum work frequency range of a probe according to the frequency characteristic of the ultrasonic probe, and determining the initial frequency and the ending frequency of the swept frequency range; adjusting integrator gate parameters, carrying out frequency sweeping to obtain the change rule of an supersonic wave fundamental wave amplitude and a secondary harmonic amplitude with the frequency, and storing the change rule in a computer; calculating corresponding nonlinear coefficients of all frequency points in the swept frequency range, and calculating the accumulated nonlinear effect in the swept frequency range; and determining a corresponding relationship between the accumulated nonlinear effect and the thermo-oxidative ageing time of the organic material, and assessing the existence or not and the degree of the thermo-oxidative ageing damage of the organic material.

The invention relates to the technical field of tunnel and underground construction anchoring equipment, in particular to a self-propelled hollow slip casting anchor rod with a stress-measuring function and an operating method. The self-propelled hollow slip casting anchor rod with the stress-measuring function includes a rod body with a hollow structure, a self-propelled drill is connected at thefront end of the rod body, and the back end of the rod body is provided with a slip casting opening which communicates with an inner cavity of the rod body; and the rod body is further provided witha stress-measuring device and an anchoring structure which is close to the self-propelled drill. According to the self-propelled hollow slip casting anchor rod with the stress-measuring function, thestress-measuring device is arranged to combine the processes of drilling, anchoring and slip casting into the same construction process, and the anchoring can be achieved in short time; and stress conditions of all sections of the anchoring rod in the supporting process can be monitored, so that the supporting mechanism of action and the stress conditions of the anchoring rod under the various kinds of surrounding rock conditions can be known, and critical evidences and references are supplied to the research of design parameters for the anchoring rod, improvement of the construction techniqueand the surrounding rock failure mechanism.

The invention provides a method for measuring the content of aluminum, silicon and zinc in the coating of an aluminum-plated zinc plate, comprising the following steps: dissolving a sample to be measured by hydrochloric acid and sodium hydroxide, introducing dissolved solution into an inductively coupled plasma atomic emission spectrometer, and automatically calculating and displaying the concentration of aluminum, silicon and zinc in the coating sample according to the spectral line intensity which is stored in the inductively coupled plasma atomic emission spectrometer of the standard aluminum, silicon and zinc solution with measured concentration. The method adopting chemical and physical analysis has greatly simplified processes, high analysis speed and high accuracy and is easy to master and operate. The linear correlation coefficient of the measured sample and the standard work curve is more than 0.999, the content of aluminum, silicon and zinc can be measured at the same time by dissolving the sample for one time, and reliable analysis data can be provided rapidly for the manufacturing plant. In addition, a few kinds of chemical agents is adopted, a small amount of the chemical agents is used, and the pollution of the medicament to the environment is reduced.

The invention discloses a multi-temporal high-resolution remote sensing image building extraction method based on a multi-feature LSTM network, and belongs to the technical field of satellite remote sensing image processing and application. The method aims to solve the problems of low accuracy, high error rate, fuzzy boundary and the like of a building extraction result of an existing method. According to the invention, a plurality of multi-temporal high-resolution No.2 remote sensing images are used as data sources; building spectral characteristics are extracted by using a method based on HSI color transformation; based on a method of combining graph segmentation and conditional random field post-processing, shape features of a building are extracted, based on a Gabor wavelet transform method, texture information features of the building are extracted, and based on a DSBI index method, index features of the building are extracted. A building characteristic set with 60 characteristicwave bands is formed by the extracted spectrum, shape, texture and index characteristics of the multi-temporal building, a manufactured building sample and a label are sent into an LSTM network to obtain a building coarse extraction result, and a final result is obtained after morphological processing.

The invention discloses a method and an apparatus for establishing a computable road network, wherein, the method comprises the following steps: collecting static and dynamic data of the road network;the road nodes being calibrated according to the static data of the road network, and the nodes being connected into roads according to the connection relations among the nodes, and the basic road network being constructed; constructing a connectivity road network according to the connectivity information between roads; according to the static and dynamic data of the road network, the traffic facilities in the road network being precisely calibrated by the calibration function and the computable road network being constructed. A basic road network is established according to the calibration node, then the connectivity road network is constructed and all kinds of traffic facilities are demarcated, and the computable road network is constructed, which can be calculated for different nodes and roads to obtain more accurate information of the road network, and the topological relationship of the road is used in the construction process, which is suitable for the calculation of complex road network and provides reliable analysis data for traffic operation, management and so on. As a method and a device for establishing a computable road network, the invention can be widely applied in the field of electronic map.

The invention discloses an anti-seismic testing device for a karst pile foundation based on a minitype vibration platform model, and belongs to the technical field of anti-seismic tests for pile foundations. A pile foundation model of the anti-seismic testing device is embedded in a prefabricated top plate, the prefabricated top plate is arranged on the tops of two supports, gaps between the supports and a visual simulation box are filled with a simulated similar material, and several strain devices are uniformly arranged on the upper surface and lower surface of the prefabricated top plate; adisplacement changing marking pen is arranged in the simulated similar material, movable striped coordinate paper used for recording a displacement changing track is arranged on a front-side panel ofthe visual simulation box, and a rolling device used for driving the striped coordinated paper to move is arranged on the outer side of the visual simulation box. The anti-seismic testing device canreally simulate the prefabricated top plate, the bearing principle of the karst pile foundation and sedimentation conditions of the whole structure of the karst pile foundation under the small earthquake condition in a laboratory to obtain the reasonable and reliable thickness of the top plate of a karst cave and the pile diameter, and the stability of the karst pile foundation in a practical project is ensured.

The invention provides a multi-channel client information processing system and a processing method. The system comprises an information collection module for collecting client information from multiple information channels, an information storage module for storing the client information collected from multiple information channels through a rowkey data combination means, an information filing module for sorting and filing client information and an information displaying module for calculating client satisfaction scores from the filed client information and displaying the scores in a chart. The client information is obtain from multiple channels and is massive. The method for processing massive client information is fixed, with fixed storage structure, and fixed analyzing and query method. The information is displayed in a chart. The system and method have the advantages of fast processing client information, thereby providing a supporting tool for maintaining enterprise and user relationship for the service industry.

The invention discloses a determination method of the iron content in a coating of an alloying hot galvanized plate and belongs to the technical field of detection of alloying galvanized plates. The determination method comprises the steps of: leading a volumetric flask of a standard stock solution into inductively coupled plasma emission spectrum equipment, and drawing a standard solution working curve for forming Fe; placing an alloying hot galvanized plate coating sample into a stripping device, and pouring 50ml of stripping liquid into the stripping device to dissolve the coating until bubbles disappear completely; pouring the reacted stripping liquid into the volumetric flask, and adding ultrapure water for constant volume being 100ml to obtain a sample to be tested; leading the sample to be tested into the inductively coupled plasma emission spectrum equipment for determination, so as to obtain the iron content in the coating of the alloying hot galvanized plate through the calculation of the inductively coupled plasma emission spectrum equipment. The determination method is high in analysis speed and accuracy, the linear correlation coefficient of the tested sample and the standard working curve is greater than 0.999, and reliable analysis data can be provided quickly.

The utility model provides a grouting sealing hole stop grout visual experimental device which comprises a pressure supply system, a grout supply system and a sealing hole stop grout visual system which are mutually connected. The pressure provided by the pressure supply system allows the grout in the grout supply system to be injected into the transparent sealing hole stop grout visual system. The device also comprises a pair of monitoring systems which carry out whole-process monitoring on the grout injection process. An experimental method comprises the steps of debugging and starting the monitoring system to carry out recording, closing the pressure adjusting value of the pressure supply system and pressing air into the system, starting the grout supply system such that the grout enters into the sealing hole stop grout visual system under the effect of high pressure air under a set start and stop time alternative change parameter and pulsing grouting is effectively simulated, and collecting and processing various parameters in a grouting experimental process through a monitoring system and analyzing the parameters to complete the experiment. The experimental device has the advantage of simple structure, convenient assembly and low cost, and the pressure change and sealing hole stop grout parameters can be effectively simulated.

The invention provides a method for measuring microelement in sodium aluminate solution, relating to a continuous fast analysis method for measuring the microelement in the sodium aluminate solution when producing aluminum oxide. The method is characterized in that an inductively coupled plasma atomic emission spectrometer is used for measuring the content of the element in the sodium aluminate solution when measuring. The method comprises the steps of: leading industrial sodium aluminate solution and acid to have neutralization reaction according the characteristic of the industrial sodium aluminate solution; diluting and confirming volume according to the different concentrations of the solution to prepare sample solution which is suitable for the requirement of measurement; selecting a best analysis spectral line; fast measuring the content of the 24 microelements in the sodium aluminate solution with the inductively coupled plasma atomic emission spectrometer; and computing to obtain exact analysis data. The method improves the analysis speed for measuring the microelements in the sodium aluminate solution, and provides immediate, exact and reliable analysis data for the production of the aluminum oxide and the improvement of the technology.

This invention relates to chloridization leachate copper analysis method of one analysis method especially to the copper analysis method, which is characterized by the following: adding alcaine and auricome into chloridization leachate and boiling it to drying extent; converting leachate Cu<+ into Cu<2+; then adding water to boil the remaining auricome and then using natrium hyposulfidum method to test copper content.

The invention discloses a test sample treatment method for simultaneously measuring content of silicon and phosphor in a silicon-manganese alloy by ICP. The test sample treatment method comprises the following steps: weighing 0.1000g of a silicon-manganese alloy test sample with particle size of 160-200mesh, putting the silicon-manganese alloy test sample into filter paper which is pre-filled with 2.0-2.5g of a mixed solvent of anhydrous sodium carbonate and boric acid in a ratio of 2 to 1, uniformly mixing, packaging and putting into an iron crucible with a graphite layer bottom for fusing for 12-18 minutes at 800-900 DEG C, cooling for 2-3 minutes to obtain a sample, putting the sample into a container which is pre-filled with 90-110ml of a diluted hydrochloric acid solution consisting of hydrochloric acid and water in a ratio of 1 to 3, dissolving clinkers, filtering the obtained sample through rapid quantitative filter paper into a 250ml volumetric flask, cleaning the sample containing container and the filter paper with deionized water, and adding deionized water to the scale after cooling the filtrate and washing liquor. According to the test sample treatment method, the silicon-manganese alloy test sample is fused and decomposed through an alkaline fusion method, thereby avoiding volatilization loss of silicon when hydrofluoric acid is added to dissolve the test sample through an acid dissolving method; the test sample is completely decomposed without interference or dissipation, so that the analyzed results are accurate and stable; moreover, an ICP spectrograph is used for simultaneously measuring the content of silicon and phosphor in the silicon-manganese alloy.

The invention provides a single-cell mass spectrometry system and method based on a parallel processing technology. The single-cell mass spectrometry system comprises: a cell bearing unit, a cleaningunit and a mass spectrometer; a base provided with a first rotating shaft; a bracket connected with the first rotating shaft and rotating around the first rotating shaft; and M groups of working units, wherein M is an integer not less than 1, each working unit comprises a mechanical arm and a capillary needle, the capillary needles are arranged on the mechanical arms, during the rotation of the bracket, when the first working unit in any group of working units is positioned at a first working position, the second working unit is positioned at a second working position, the third working unit is positioned at a third working position, the cell bearing unit is located at each first working position, the mass spectrometer is located at each second working position, and the cleaning unit is located at each third working position. The single-cell mass spectrometry system has the advantages of high working efficiency, accurate analysis result and the like.

The invention relates to a method for determining the content of neodymium fluoride and lithium fluoride in neodymium production electrolyte. The method comprises the steps of making a lithium standard working curve and a neodymium standard working curve, preparing a soluble compound with neodymium production electrolyte, preparing a sample solution, and performing determination and analysis withan inductively coupled plasma emission spectrometer. The method adopting the inductively coupled plasma emission spectrometer to perform working curve comparison and automatic analysis and determination, has the advantages of wide linear detection range, high analysis speed, high accuracy and the like, automatically calibrates the standard working curves of lithium and neodymium solutions throughinstrument analysis software, enables linearly dependent coefficients of a sample and standard curves to be 99.99% and above and can quickly and reliably provide reliable data analysis.

The invention provides an enrichment device for gaseous mercury in soil. The enrichment device comprises an auger, which isolates air from gas in soil and seals earth gas; a drying and buffering purifier, which filters out dust and dries and cleans buffer gas; a mercury enricher, which adsorbs gaseous mercury in the soil; and an adjustable gas pump, which extracts the gas in the soil, wherein theauger is provided with a gas pipe which allows the gas in the soil to pass through; the outlet of the gas pipe communicates with the drying and buffering purifier; and the gas in the soil sequentiallypasses through the auger, the drying and buffering purifier, the mercury enricher and the adjustable gas pump and is then discharged. According to the invention, filtration purification and buffer drying design are adopted for a gas extraction method for the first time, and an indirect contact manner is employed for a mercury trapping tube to realize adsorption in the enricher. The enrichment device of the invention has integrated dust filtering and gas drying functions and adopts a gas extraction method using a series of anti-pollution units like the enricher, so the mercury trapping tube iseffectively prevented from contamination.

The invention discloses a special fixture for the preparation of oxygen-nitrogen samples in metal. The special fixture comprises two oppositely-arranged cast iron plates, wherein the length, the width, the thickness and the surface roughness of each cast iron plate are 300 mm, 30 mm, 4.9 to 5 mm and 1.6 [mu]m correspondingly; each cast iron plate is made of ductile cast iron QT300; 11 to 16 semicircular holes are uniformly formed in one side of each cast iron plate; the distance between every two adjacent semicircular holes is 15 mm; and the semicircular holes in the two cast iron plates are oppositely arranged and jointly combined to form circular holes of which the hole diameter is phi 5 to 5.05 mm. By adoption of the special fixture, 10 or more samples can be simultaneously machined at a time, thereby improving the sample machining efficiency by 10 times or above and relatively well solving the problem about identity in the sample machining process; the good consistency in the dimensional tolerance, the precision and the surface roughness of the prepared samples can be achieved; and accordingly, the popularization prospect is extensive and the practical value is very great.

The invention provides a releasing gas test apparatus, which comprises a releasing gas sampling device, a tested gas quantitative sampling device, a releasing gas detection device and a vacuum degree monitoring device, wherein the releasing gas sampling device is connected with an external releasing gas source, the releasing gas sampling device and the tested gas quantitative sampling device are connected and controlled through a valve, and the releasing gas detection device and the tested gas quantitative sampling device are connected. The invention further provides a method for carrying out a releasing gas test by using the test apparatus. The method comprises: S1, preparing a test system background vacuum source and sampling releasing gas; S2, introducing the releasing gas sample into the background vacuum source; and S3, testing the releasing gas sample in the background vacuum source, wherein a vacuum degree of the background vacuum source is monitored through the vacuum degree monitoring device and must be stabilized to less than 1*10<-5> Pa. With the present invention, the releasing gas introduced into the background vacuum source can be subjected to reliable characteristic analysis, the operation is simple, and the judgment is rapid.

The invention relates to the technical field of environmental protection, and particularly relates to a sampling control system for online detection of VOCs in environmental chambers. The sampling control system comprises a multi-way electromagnetic switching valve, an online gas chromatograph, a sampling pump and a PLC (programmable logic controller), wherein a gas outlet path contact of the multi-way electromagnetic switching valve is respectively switched and conducted with each gas inlet path contact, and the gas outlet path contact is connected to a sample inlet of the online gas chromatograph through the sampling pump; a plurality of gas inlet path contacts of the multi-way electromagnetic switching valve are respectively connected to sampling ports of a plurality of environment chambers in a one-to-one correspondence manner; and an I / O signal output contact of the online gas chromatograph is connected to an I / O signal input contact of the PLC, and an I / O signal output contact ofthe PLC is connected to a circuit control device of the multi-way electromagnetic switching valve. According to the sampling control system, one set of detection equipment can detect VOCs in a plurality of environment chambers, intermediate links are omitted, analysis data is reliable, the use cost is reduced for a user, and the occupied space is saved.

A method for measuring nutrients in soil is disclosed. The method includes a sampling step, namely a step of sampling the soil, with the sampling depth being 0.5-1.5 m; a solution preparing step, namely a step of weighing 10 parts by mass of the sieved soil, adding 80-100 parts by mass of deionized water into the soil, adding 2-3 parts by mass of an extracting agent into the mixture, stirring themixture at a high speed of 2000-3000 r / min for 10-20 min, and then stirring the mixture at a rotating speed of 40-60 r / min to achieve hydration; a step of allowing the mixture to stand, namely a stepof allowing the liquid mixture obtained in the step A2 to stand at 30-40 DEG C for 2-3 h; a step of separation, namely a step of inserting two electrode plates into the liquid mixture, and inputting steep pulse current to the two electrode plates, with the peak value of steep pluses being 150-180 V, the pulse width being 0.5-0.8 ms, the repetition frequency being 200-300 kHz, and the pulse steepness being 50-100 ns; a step of centrifugation, namely a step of adding a separated liquid obtained in the step A4 into a centrifuge, and performing centrifugation at a rotating speed of 10000-15000 r / min; and a step of measurement, namely a step of drawing a liquid supernatant after centrifugation, and measuring nutrients in the liquid supernatant by utilizing an ultraviolet-visible light spectrophotometer. When the method is used for measuring nutrient ions in soil, measured data are more accurate and the measurement efficiency is higher.

The invention discloses a gas content analyzer. The gas content analyzer comprises a display screen (1), keys (2), a data interface (3), a built-in rechargeable battery (4), a permanganate measuring instrument (5) and a water sample detection device (6), wherein the water sample detection device (6) is used for performing data processing on a water sample; converted parameters are measured through the permanganate measuring instrument (5) and are displayed through the display screen; the analyzer is operated through the keys (2); the built-in rechargeable battery (4) can be used under the conditions that batteries are needed in a laboratory or in the field. The gas content analyzer is low in cost, easy to operate and small in needed maintenance amount, and guarantees accuracy of metering and conveying of reagents.

The invention discloses a microwave scintiloscope, comprising an antenna reflection metal cover, a constant temperature heating module and a heat conduction connecting piece, wherein a constant temperature control module is composed of a controller, a PWM duty ratio pulse generator, a heating circuit and a heating resistor, which are connected with each other in sequence, a temperature sensing probe is installed in the antenna reflection metal cover to transmit temperature collection data to the controller, the controller uses the PID technology to calculate the data returned by the temperature sensing and converts the data into an output signal of the controller, the PWM duty ratio pulse generator converts the output signal into a PWM waveform of a corresponding duty ratio for output, theheating resistor is heated by the heating circuit, and the heat is transferred to the antenna reflection metal cover by the heat conduction connecting piece. The circuit and control structure designof the microwave scintiloscope disclosed by the invention is simple, the heat conduction efficiency is high, and the microwave scintiloscope capable of providing reliable analytical data for the scientific research while working in a stable temperature environment is provided while achieving the purpose of saving resources and reducing the cost.

The invention discloses a vibration isolation support for mounting a static force level gauge and a design method of the vibration isolation support, which can effectively reduce the interference of liquid level oscillation on the measurement of the static force level gauge. The vibration isolation support for installing the static force level gauge is an adjustable passive vibration isolation support, the static force level gauge is placed on the vibration isolation support, the liquid level oscillation phenomenon caused by environment pulsation and vehicle excitation can be effectively eliminated, the accuracy of bridge safety monitoring is enhanced, and the safety of a bridge is improved. High-reliability analysis data is provided for subsequent bridge operation state evaluation, the health condition of the bridge is truly reflected, unnecessary maintenance cost is reduced, and the maintenance cost of the whole life cycle of the bridge can be effectively reduced. The bridge deflection monitoring device solves the problem that the monitoring accuracy is affected by liquid level oscillation in a communicating pipe of a static force level gauge when the bridge deflection is monitored by the static force level gauge in the prior art.