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519results about How to "Quick evaluation" patented technology

Gamma energy spectrum-based method for identifying clay shale reservoir and uranium ore occurrence on spot

The invention relates to a gamma energy spectrum-based method for identifying clay shale reservoir and uranium ore occurrence on the spot, which comprises the following steps that: rock debris in corresponding depth of drilling fluid is continuously sampled or a core acquired through the core drilling is sampled according to corresponding depths; the rock debris sample or the core sample is placed into a matched lead tank, and a gamma energy spectrum probe is used for measuring the rock debris sample or the core sample inside the lead tank; then counting rates and activity of uranium (U), radium (Ra), thorium (Th) and kalium (K) and a total gamma value are acquired according to the measurement result, so that the real content of U(Ra), Th and K in the rock can be calculated; and finally, a variation curve of the contents of U(Ra), Th and K is drawn according to the calculation results, and the clay shale reservoir and the uranium ore occurrence are identified according to variation characteristics of the curve. Gamma energy spectrum measurement and analysis on rock debris or the core which are acquired from the drilling are directly performed, so that the clay shale reservoir and the uranium ore occurrence can be rapidly identified and evaluated. The method is an economical and efficient method. The gamma energy spectrum measurement is performed on the drilling site, so that influence of an external environment on the rock sample can be avoided, and the accuracy of the measurement result can be guaranteed.
Owner:CHINA PETROLEUM & CHEM CORP +1

Front anti-collision beam assembly lightweight designing method based on independent assessment working condition

The invention discloses a front anti-collision beam assembly lightweight designing method based on an independent assessment working condition and solves the problems that influence of various collision working conditions on performance of a front anti-collision beam assembly is considered insufficiently and verifying of the performance is only conducted in a whole vehicle at the stage of structural improving and lightweight designing of the front anti-collision beam assembly. The method includes steps: 1), selecting various collision working conditions: selecting collision working conditions various in form and capable of comprehensively reflecting anti-collision performance of the front anti-collision beam assembly; 2), determining a lightweight design performance target of the front anti-collision beam assembly: determining a performance target of the front anti-collision beam assembly on the basis of the anti-collision performance of the whole vehicle in each collision working condition; 3), establishing the independent assessment working condition of the front anti-collision beam assembly and verifying effectiveness of the same: establishing the independent assessment working condition of the front anti-collision beam assembly, and verifying the effectiveness of the independent working condition; 4), performing lightweight designing on the front anti-collision beam assembly on the basis of the independent assessment working condition: using the determined performance target of the front anti-collision beam assembly as a constraint condition and the independent assessment working condition as a carrier to perform lightweight designing on the front anti-collision beam assembly.
Owner:JILIN UNIV

Detection method and detection device of grouting reinforcement effect in tunnel

The invention relates to a detection method and a detection device of grouting reinforcement effect in a tunnel, belonging to the field of tunnel engineering. The detection method of grouting reinforcement effect in the tunnel comprises the following steps: horizontally and respectively drilling the detection device into tunnel headings before and after grouting by using a drilling machine; forming an elliptical pilot tunnel in soil mass; inflating and pressurizing the measuring gas chamber of the device, and detecting the displacement of the short axis and the long axis of the elliptical pilot tunnel under the pressure at all levels; computing mechanical parameters (coefficient KO of earth pressure at rest, Poisson ratio mu and elastic modulus E) of the soil mass before and after grouting according to the elasticity theory formula; comparing the mechanical parameters of the soil mass before and after grouting; and making a conclusion of the grouting reinforcement effect according to the variation of the mechanical parameters of the soil mass before and after grouting. The core component of the detection device is the measuring gas chamber which is composed of a tubular expanded inner cavity and a rubber expanded film, and after the device is drilled into the soil mass, the displacement sensor and the pressure sensor of the measuring gas chamber are used for detecting field data. The invention has simple operation and can quickly, quantitatively and scientifically evaluate the grouting reinforcement effect.
Owner:BEIJING JIAOTONG UNIV

Method and device for measuring anti-dirty performance of material surface based on weight method

InactiveCN101246105AShorten the research cycleRemove technical barriers to comparisonWeighing by absorbing componentMeasurement deviceSludge
The present invention provides a measuring device for assessing the antisludging capability of the surface of the material, the measuring device mainly comprises an upper water tank, a lower water tank, an experiment box, a test desk, an upper water pipe, a lower water pipe, an overflow pipe, an overflow plate, an electric power, a temperature adjusting device, a working medium flow regulating device through the experiment box, a cycling pump and the like; the upper water tank and the lower water tank through the upper water pipe, and the upper water tank and the lower water tank through the lower water pipe and the experiment box respectively form a circulating system. When the working medium flows through the experiment box the sludge matter will deposit on the surface of the measured material test piece. When the test piece is detached and is dried by the constant-temperature electro-heating ventilating drying cabinet, the added weight of the test piece is weighted and the curve chart of the relationship between the added weight of the test piece and the time is drafted, and the antisludging capability is assessed by comparing the induction period of the dirt and the asymptotic value. The device can do assessing to one material or working medium, also can execute contrastive analysis to a plurality of materials and different working mediums, and has the advantages of high accuracy, good repeatability, quick evaluating, simple operation and the like.
Owner:NORTHEAST DIANLI UNIVERSITY

Nondestructive evaluation method of stress of cladding layer based on critical refraction longitudinal wave

InactiveCN103901106AAchieve non-destructive evaluationStress Evaluation FastAnalysing solids using sonic/ultrasonic/infrasonic wavesStress evaluationLongitudinal wave
The invention relates to the stress evaluation of a laser cladding layer and in particular relates to a nondestructive evaluation method of the stress of a cladding layer based on a critical refraction longitudinal wave. According to the invention, the nondestructive evaluation of the cladding layer stress is realized through selecting a double critical refraction longitudinal wave probe with a suitable central frequency; an optimum propagation distance is determined as the spacing distance between a propagation probe and a receiving probe to be fixed by combining the law that the energy of the critical refraction longitudinal wave in the cladding layer decays; the time difference between the critical refraction longitudinal signals is used for representing the change amount of the propagation speed of the cladding layer in the critical refraction longitudinal wave caused by the stress and taken as the characteristic parameter to evaluate the stress of the cladding layer to build a stress-time difference relation; a liner function is adopted to fit results to obtain an acoustoelastic equation used for representing the stress of the cladding layer, and therefore the nondestructive evaluation of the stress of the cladding layer based on the critical refraction longitudinal wave is realized.
Owner:JIANGSU UNIV OF SCI & TECH

Evaluation method of thermal vacuum environmental adaptability of elements and components for spacecraft

The invention relates to the technical field of the evaluation of thermal vacuum environmental adaptability, and discloses an evaluation method of the thermal vacuum environmental adaptability of elements and components for a spacecraft. The method comprises the following steps: S1, performing stress analysis to the thermal vacuum environment of the elements and components for the spacecraft, so as to fix the vacuum stress, thermal stress and electric stress of thermal vacuum environmental ground tests, S2, fixing the cycle index of the thermal vacuum environmental ground tests, S3, performing thermal vacuum ground testing to the elements and components for the spacecraft according to test conditions fixed through S1 and S2, so as to judge whether samples of the elements and components for the spacecraft are qualified, and S4, evaluating that the thermal vacuum environmental adaptability of the elements and components meets task requirements if the quantity of unqualified samples is smaller than or equal to the acceptance number regulated in a sampling scheme, or evaluating that the thermal vacuum environmental adaptability of the elements and components does not meet the task requirements. The method can rapidly and accurately evaluate performances of the elements and components for the spacecraft under the thermal vacuum environment, and provides a basis for reasonably selecting the elements and components for the spacecraft.
Owner:BEIJING SHENGTAOPING TEST ENG TECH RES INST

Electric arc stud welding waveform detection device and quality evaluation method thereof

The invention discloses an electric arc stud welding waveform testing device and a quality evaluating method thereof. The electric arc stud welding waveform testing device implements waveform processing to electric current signals through a hardware waveform processing system and a software waveform processing system in the stud welding process, obtains the electric current waveform in the stud welding process, further obtains five quality parameters including arc generating time, an average value of electric arc burning currents, a fluctuating range of the electric arc burning currents, arc burning time and an instantaneous electric current value before arc blowout, contrasts the five quality parameters with standard waveform parameters, and consequently gives quick quality evaluation of finished welding. The quality evaluating method is a nondestructive and real-time test method, prevents a good welding adapter from being damaged in detection, can realize the 100 percent detection of the stud welding adapter, overcomes the detection omission problem that is caused by the fact that only 2 to 5 percent of the stud welding adapters are randomly inspected in traditional methods, and can simultaneously realize the detection with inner defects such as air holes and incomplete fusion and the like which are hard to be realized by the traditional appearance test methods.
Owner:XI AN JIAOTONG UNIV

Device for evaluating image quality of near-eye display optical lens

InactiveCN104111165AAccurate and reliable evaluation resultsQuick evaluationTesting optical propertiesCamera lensImaging quality
The invention discloses a device for evaluating image quality of a near-eye display optical lens and is applicable to rapid detection in commercial production. The device comprises a micro display screen, an optical lens to be evaluated, a first CCD camera, an image collection card and a computer, wherein the micro display screen is used for displaying a standard test plate pattern; the pattern is taken as an object; images formed after transmitting by the optical lens are received by CCD camera; the image collection card is used for collecting the images and subsequently displaying the images on the computer. With the adoption of the micro display, the operation is greatly simplified without the process of manufacturing the standard test plate; the test plate is colorful and capable of testing the color reduction degree of an optical system; a plurality of physical parameters for expressing the optical lens to be evaluated can be obtained by detecting at one time, and the physical parameters include a field angle, the color reduction degree, a contrast ratio, a resolution ratio, an MTF value and the like. According to the technical scheme, the device can be used for quickly and accurately evaluating the imaging quality or the performance level of the optical lens and is relatively convenient to use.
Owner:INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI

Infrared spectroscopic analysis method of integral quality characteristic of mainstream smoke of cigarette

The invention discloses an infrared spectroscopic analysis method of the integral quality characteristic of mainstream smoke of cigarette. The analysis of the integral quality characteristic of mainstream smoke of a cigarette sample is completed through smoke collection, power-on and pretreatment of a vacuum infrared spectrometer, background subtraction, spectrum acquisition and data analysis. The method is suitable for the analysis and detection of the integral quality characteristic of the cigarette smoke, can directly acquire the integral spectral information of the mainstream smoke without individually trapping a granule phase part by a Cambridge filter, enhances the analysis sensitivity of the above device through the background subtraction and data preprocessing, and allows the main component score of a sample to be conveniently calculated through combining a metrological calculating technology, and the score characterizes the integral quality characteristic of the mainstream smoke of the sample. The score can be widely applied to the classification, the true and counterfeit cigarette identification and the homogenization evaluation of different samples. The whole evaluation process is fast and accurate, and is highly sensitive, and the method provides effective technical support for the quality improvement and the synergism of cigarette products and the development of new products.
Owner:CHINA TOBACCO YUNNAN IND

Multi-atmosphere dynamic thermogravimetric-differential thermal analyzer and application thereof in sulfur transfer performance simulation and evaluation of flue gas

The invention discloses a multi-atmosphere dynamic thermogravimetric-differential thermal analyzer which belongs to the field of petroleum refining industry and researches application thereof in sulfur transfer performance simulation and evaluation of flue gas. The analyzer comprises a protection gas circuit, a multigroup reaction gas circuit, a purging gas circuit, a switching valve, a test reactor, a drain port, a tail gas absorption device and an electrothermal furnace. The analyzer can blend and provide different required multicomponent mixed gas through one or a plurality of groups of gas regulating and mixing systems, switch the atmospheres in the test reactor according to requirements, simulate reaction atmospheres with complicated changes, realize dynamic in-situ testing, more particularly simulate a sulfur dioxide atmosphere and a hydrogen atmosphere (or a hydrocarbon atmosphere) under the micro positive pressure and carry out safe switching between the sulfur dioxide atmosphere and the hydrogen atmosphere (or the hydrocarbon atmosphere), record changes of the weight and the temperature of a sample in thermal treatment process at the real time under the condition of programmed temperature controlling, carry out thermogravimetric analysis and differential thermal analysis and is used for simulating and evaluating the performance of a sulfur transfer agent of catalytically-cracked flue gas.
Owner:BEIJING UNIV OF CHEM TECH

Method for analyzing propolis chemical components through pyrolysis gas chromatography-mass spectrometry

ActiveCN103323546AIntuitive compositionIntuitive reflective compositionComponent separationChemistryPyrolysis–gas chromatography–mass spectrometry
The invention discloses a method for analyzing propolis chemical components through pyrolysis gas chromatography-mass spectrometry. The method comprises the steps that: propolis powder is placed in a pyrolysis device; the pyrolysis device is placed at a feeding port of a gas chromatograph; when the temperature of the pyrolysis device reaches 400-600 DEG C, feeding is carried out; with a method in which a linear temperature increasing retention index is combined with a mass spectrometry standard spectral library, the chemical components of the propolis are qualified; and the propolis chemical components are subjected to quantitative analysis through calculating areas of the peaks in the gas chromatography spectrum. Solid sample is directly fed into pyrolysis gas chromatography, and no solvent is adopted, such that operation is simple and environment-friendly. The pyrolysis gas chromatography-mass spectrometry method is developed for carrying out qualitative and quantitative detections upon the pyrolysis sample, such that experiment time can be effectively saved, experiment steps can be simplified, and propolis quality can be rapidly evaluated. The detection technology can be popularized to a pyrolysis quality detection field, and has an important significance upon rapid evaluation of pyrolysis quality.
Owner:上海鹿明生物科技有限公司

Field estimation method and simulation estimation method for flatness and comfort of bituminous pavement

InactiveCN104573343AGood choiceReasonable evaluation of comfortSpecial data processing applicationsData informationLongitude
The invention discloses a field estimation method and a simulation estimation method for flatness and comfort of a bituminous pavement. Various data information, such as time, experimental vehicle speed, the acceleration speed data of each test point, longitude and latitude of each test road section, and image data of a test lane, in a test process can be collected in real time by a data collecting instrument adopted by the field estimation method; relatively complete data information facilitates data selection and provides theoretic data basis for subsequent performance change of road. According to the simulation estimation method, a built finished vehicle model is very close to the movement rule of a practical vehicle, so that the movement character under motivation of road roughness can be better simulated; the operation speed of a software model on a computer is 4 to 6 times faster than the actual speed, the roughness of a tested road can be quickly estimated, the estimation method is relatively few in outdoor operation and relatively low in external influence, human and material resources can be effectively saved, the mounting process of a testing apparatus is avoided, and the estimation method is more simple and convenient and shorter in required time.
Owner:CHANGAN UNIV
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