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41results about How to "Improve the evaluation system" patented technology

Long-distance diagnosis and treat method of traditional Chinese medical science

The invention discloses a long-distance diagnosis and treat method of traditional Chinese medical science, comprising the following steps: an originator logs on a consultation system to send a consultation application and provides diagnosis and treat information, i.e. physicochemical indexes, treatment experiences, and the like, of a patient; consultation specialists are determined and a consultation compere is appointed in on-line response specialists; an analyzing platform is openly qualified and quantified; a question proposed stage, a diagnosis and treat scheme proposed stage and a scheme discussion stage of the long-distance diagnosis and treat method of the traditional Chinese medical science are carried out after equipment is detected to be normal, and a diagnosis report of consultation is finally obtained after the deep discussion of each consultation specialist; and the consultation scheme is fed back to the consultation system in time after being carried out and forms the contribution degree of each consultation specialist who takes part in the consultation process. In the long-distance diagnosis and treat method, the consultation specialists can share medical records and diagnosis data of patients in real time and can be more directly mutually exchanged from the patients, and the selection scientificalness and the accuracy of the diagnose result of the specialists are further enhanced by combining the intelligence of each specialist.
Owner:BEIJING UNIV OF CHINESE MEDICINE

'Hardware-in-loop' accelerated loading simulation test system for intelligent connected vehicles

ActiveCN106873397AComply with the rules of traffic flowImprove the evaluation systemSimulator controlData transmissionSoftware
The invention relates to a 'hardware-in-loop' accelerated loading simulation test system for intelligent connected vehicles, relates to the technical field of intelligent vehicle automated driving and traffic simulation, and aims to quickly test intelligent vehicle planning decision devices in a more advanced, 'real' and comprehensive manner through a rich and vivid traffic scene. The simulation test system comprises a traffic simulation layer, a data transmission layer, and an intelligent vehicle layer, which jointly restrict the operation speed of the system. The traffic simulation layer is mainly used for generating a 'real' traffic scene based on traffic simulation software and simulating the perception and reaction of intelligent vehicles to the surrounding environment, and can load multiple scenes automatically and accelerate the operation of the scene. The intelligent vehicle layer contains intelligent connected vehicles developed by different organizations. The data transmission layer is used for connecting the traffic simulation software with one or more actual intelligent vehicle planning decision devices through a hardware / software interface to transmit perception information and vehicle control information between the traffic simulation layer and the intelligent vehicle layer.
Owner:TONGJI UNIV

Remote traditional Chinese medical diagnosis and treatment system

The invention relates to a remote traditional Chinese medical diagnosis and treatment system which comprises a consultation module, a specialist selection module, a specialist terminal, a host terminal and an analysis platform. The consultation module comprises a consultation initiation unit, a consultation control unit, a consultation report unit and a consultation evaluation unit, and a clinician can log in the consultation initiation unit to send a consultation application; the specialist selection module is used for selecting consultation specialists and appointing a consultation host according to the type of a disease; the consultation control unit is used for opening the analysis platform, bringing in the consultation specialists and controlling a consultation progress; the consultation report unit is used for summarizing a consultation scheme obtained after a deep discussion and forming a consultation report; and after the consultation scheme is executed, the consultation evaluation unit forms the contribution degrees of each specialist participating in the consultation process. In the remote diagnosis and treatment system, the consultation specialists can share a patient case and diagnosis data in real time, and under the help of the analysis platform, the consultation specialists and a patient can more intuitionally communicate mutually, thus the wisdoms of the specialists are integrated, thereby further improving the scientificity of specialist selection and the accuracy of a diagnosis result.
Owner:BEIJING UNIV OF CHINESE MEDICINE

Mobile internet-based real-time remote monitoring equipment for fuel consumption

The invention discloses mobile internet-based real-time remote monitoring equipment for fuel consumption. The mobile internet-based real-time remote monitoring equipment for the fuel consumption is characterized by comprising a fuel consumption detection device, a vehicle mobile terminal and an information management center. The fuel consumption detection device is used for periodically transmitting detected fuel consumption information to the vehicle mobile terminal. The vehicle mobile terminal is used for working out actual fuel consumption according to the received fuel consumption information, meanwhile, detecting driving information in real time, and periodically transmitting the actual fuel consumption and the driving information to the information management center through a GPRS (general packet radio service) wireless communication network. The information management center is used for receiving the information transmitted from the vehicle mobile terminal to perform tracking processing, and supervising the fuel consumption and the wheel paths of vehicles in real time. The problems that fuel is stolen and sold, expenses are wrongfully declared, government vehicles are used privately, and the wheel paths of the vehicles are not clear can be fundamentally solved.
Owner:SUZHOU TSINGTECH MICROVISION ELECTRONICS TECH +1

Capacity evaluation method based on block chain technology

InactiveCN107944740AA wide range of competency evaluation indicatorsImprove the evaluation systemResourcesData scienceData preservation
The invention discloses a capability evaluation method based on a block chain technology. The method comprises the steps that a capability evaluation index is determined, the capacity evaluation indexparameters are set; the data of the capability evaluation index are stored in a block chain; a capability evaluation process is established, and the data of the capability evaluation process are stored in the block chain; evaluation is started according to the evaluation process, and evaluation result data are stored in the block chain; evaluation experts, users, evaluated people and the public give feedback, and the feedback results are recorded in the block chain; the data of the capability evaluation index, the data of the evaluation process and the data of the evaluation result can be dynamically corrected according to a program; according to the intelligent evaluation program, the accumulated data in the block chain are modeled and analyzed; and a document is formed for users to review and extract. The capability evaluation method based on the block chain technology can carry out capability evaluation objectively and comprehensively. The evaluation process is transparent. Evaluation records can be traced back. The credibility is high.
Owner:刘大宇 +1

Assessment test method and device of timber architecture room environment

The invention relates to an assessment test method and a device of a timber architecture room environment. The assessment test method includes that physical indexes of the timber architecture room environment and physiological indexes of a testee in the timber architecture room environment are synchronously tested, and physical index data and physiological index data are obtained, wherein the physical indexes include noise, lighting, a temperature and humidity, and the physiological indexes include electrocardio, a heart rate, respiration, a skin temperature, skin conductivity and surface myoelectricity of the testee; and statistic analysis is carried out on the physical index data and the physiological index data to obtain assessment test results. The invention further provides an assessment test device. According to the assessment test method, an assessment and / or comparation system of the timber architecture room environment is built, living environment, working environment and life quality of human beings are beneficially improved, and superiority of different kinds of timber architectures is beneficially and deeply developed.
Owner:INT CENT FOR BAMBOO & RATTAN

Evaluation method for machine beam design scheme by using fuzzy analytic hierarchy process

The present invention discloses an evaluation method for a machine beam design scheme by using the fuzzy analytic hierarchy process. The method comprises the following steps: determining a beam designrequirement through investigation and consultation, mapping the beam design requirement to a beam engineering characteristic index, and converting the beam design requirement into a beam design element; screening a design element parameter combination to formulate the beam candidate scheme, and carrying out the three-dimensional modeling to obtain a beam engineering characteristic simulation value; and establishing a beam design scheme evaluation system, using the fuzzy analytic hierarchy analysis process to establish a fuzzy judgment matrix for the relative weight calculation, and solving the differentiation influence degree of the beam engineering characteristic index on each scheme so as to obtain the final score of the beam design scheme and to determine the optimal scheme. Accordingto the method disclosed by the present invention, the customer demand is emphasized, the weights of the factor indexes which affect the beam design scheme evaluation is comprehensively considered, theproblem of multi-level and fuzzy beam design scheme comprehensive evaluation is solved, and the method has the characteristics of flexibility, conciseness, easy program-programming, and the like.
Owner:NANTONG UNIVERSITY

Method for evaluating cigarette harm degree by using primate animal models

The present invention discloses a method for evaluating a cigarette harm degree by using primate animal models, and belongs to the field of cigarette toxicology evaluation and related technology detection. According to the method, Chinese tree shrews are adopted as test animals, an active smoking device with a special design is adopted to enable tested animals to be at a smoking stimulating state so as to observe conditions of the animals at the state, determine real test data, and reasonably evaluate a cigarette harm degree. The method of the present invention has the following advantages that: the specific Chinese tree shrews with high biological classification are adopted to carry out evaluation researches of tobacco toxicology and attenuated mechanisms, wherein the method has characteristics of sensitive response on toxicological effects produced by cigarette smoke gas, convenient operation and economic breeding, the evaluation system used in the method is perfect, the evaluation cost is relatively low, the evaluation result obtained by using the primate animal models provides comparative medicine values compared with the evaluation result obtained by using other experimental animals, and the method is applicable for evaluation of cigarette harm reduction efficacy.
Owner:HUBEI CHINA TOBACCO IND +1

Asphalt pavement crack depth detection method based on surface wave frequency dispersion curve

ActiveCN111041949AAccurate locationGet the stiffness propertiesRoads maintainenceEngineeringRoad surface
The invention relates to an asphalt pavement crack depth detection method based on a surface wave frequency dispersion curve. The method comprises the following steps: 1) obtaining a time domain signal of propagation of a surface wave in an asphalt pavement; 2) performing Fourier transform on the time domain signal to obtain a frequency dispersion curve of the surface wave propagated in the asphalt pavement, namely a curve of the phase velocity changing along with the frequency / wavelength; 3) performing inversion analysis on the frequency dispersion curve to obtain a change value of the shearwave velocity along with the pavement depth, obtaining an elastic modulus value changing along with the depth according to a linear elasticity theory, and determining whether a crack exists or not according to the modulus attenuation rate; and 4) according to the characteristic that the surface wave generates a reflection behavior when encountering the crack boundary, obtaining a parameter influencing the road surface crack depth, i.e., the minimum wavelength in the main frequency dispersion curve, and obtaining the estimated crack depth according to the parameter. Compared with the prior art,the method has the advantages of accurate positioning, crack rigidity detection, crack depth estimation and the like.
Owner:TONGJI UNIV

Energy internet clean low-carbon development index index system

The invention discloses an energy internet clean low-carbon development index system, which comprises the following steps: S1, analyzing social benefits, economic benefits and environmental benefits of the whole process of energy production, transmission and consumption, collecting index data, and determining whether historical data can be utilized for further extrapolation; S2, constructing a keyindex system for clean low-carbon development of the energy internet, and ensuring the effectiveness and the generalizability of the method and the model by utilizing cross inspection; S3, performingmulti-scenario analysis, and determining weights of key indexes of clean low-carbon development of the energy internet by using a difference weighting method; and S4, designing multiple scenes, and determining the change condition of clean low-carbon development of the energy internet under each index change. According to the invention, the evaluation system in the green low-carbon evolution process of the energy internet is enriched to a certain extent, an energy internet evolution concept model with national characteristics is constructed, and the method can also be used for analyzing the energy conservation and emission reduction development characteristics of the energy internet and the future development direction.
Owner:STATE GRID ENERGY RES INST +1

Sulfydryl modified high-molecular compound, and preparation method and application thereof

PendingCN112812200AProlong the action timeProlonged metabolic half-lifeDouble bondExtracellular ground substance
The invention relates to a sulfydryl modified high-molecular compound, and a preparation method and application thereof. The sulfydryl modified high-molecular compound is prepared from an acryloyl derivative modified high-molecular compound and a multi-sulfydryl compound through a Michael addition reaction of mercaptan and conjugated double bonds. The preparation method not only can realize the structure target of the sulfydryl modified high-molecular compound disclosed by the invention, but also has the following advantages: the structure and composition of the synthetic product, the variety and content of a large number of compound molecular functional groups and the like can be flexibly and effectively controlled; a reagent with high biocompatibility is adopted, so that the production cost is effectively controlled, and the toxicity in the synthesis process is reduced; and under the condition that a safe reagent and simple reaction steps are adopted, the obtained sulfydryl modified biocompatible polymer series compound which can be used as an extracellular matrix material and has good raw material structure and biological activity and adjustable functional group type and content according to needs can be obtained, and various clinical application requirements are met.
Owner:블라파르바이오테크놀로지항저우리미티드

Device for testing the friction coefficient of outer surface of umbilical cable

The invention discloses a device for testing the friction coefficient of the outer surface of an umbilical cable. The device comprises a lateral pressurizing mechanism, a contact panel, an axial stretching mechanism and a testing mechanism, the lateral pressurizing mechanism comprises a tensile testing machine and a tensile testing controller; the contact panel comprises an upper clamp and a lower clamp, the lower clamp is used for bearing an umbilical cable sample, and the upper clamp can move up and down under the driving of a tensile testing machine and is matched with the lower clamp to apply lateral extrusion force to the umbilical cable sample; the axial stretching mechanism comprises a chest expander and a calculator, and the chest expander is used for applying a stretching load in the horizontal direction to the umbilical cable sample; the testing mechanism comprises a camera, and the camera is used for recognizing creep displacement and friction displacement in real time. The invention further discloses an umbilical cable outer surface friction coefficient testing method based on the umbilical cable outer surface friction coefficient testing device. The method can effectively detect the friction coefficient of the outer surface of the umbilical cable, and is high in precision and small in error.
Owner:SUN YAT SEN UNIV

A method for detecting corrosion resistance of metal-plastic composite materials

The invention belongs to the field of metal anti-corrosion and discloses a method for detecting the corrosion resistance of metal-plastic composite materials. The metal-plastic composite material is covered with a polymer material barrier layer on the surface of the metal standard test piece, and the specific steps include the following steps: the metal-plastic composite material is contacted with a solution corrosive to metal through the polymer material barrier layer, and the The molecular material barrier layer separates the metal standard test piece from the solution, analyzes the concentration of metal ions in the solution, and evaluates the corrosion resistance of the metal-plastic composite material according to the change of the concentration of the metal ions in the solution. The prior art does not directly evaluate the corrosion resistance of metal-polymer composite materials; the present invention evaluates the barrier of the barrier layer by measuring the change of the metal ion concentration in the solution before and after soaking the metal standard sample specimen with the barrier layer in the solution. Performance, and then evaluate the corrosion resistance of metal-polymer composite materials, and improve the evaluation system of steel-plastic composite pipes.
Owner:SOUTH CHINA UNIV OF TECH

Coal mill risk assessment method and device, electronic equipment and storage medium

The invention provides a coal mill risk assessment method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining subjective experience indexes corresponding to a plurality of risk assessment indexes in a risk state of a coal mill, carrying out the weight sorting of the subjective experience indexes, obtaining a judgment matrix, and obtaining the subjective weight of a fault index of the coal mill based on the judgment matrix; determining posterior probabilities of the plurality of risk evaluation indexes, and determining objective weights of the risk evaluation indexes based on the posterior probabilities; a coal mill real-time data set and an evaluation set corresponding to the risk evaluation indexes are obtained, and a fuzzy evaluation matrix is obtained based on the coal mill real-time data set and the evaluation set; and obtaining a risk assessment result of the coal mill based on the subjective weight, the objective weight and the fuzzy evaluation matrix. According to the method, the subjective weights and the objective weights corresponding to the plurality of risk evaluation indexes are combined with the fuzzy evaluation matrix corresponding to the real-time data set of the coal mill, so that comprehensive and dynamic risk evaluation on the coal mill is realized.
Owner:BEIJING BUILDING MATERIALS ACADEMY OF SCI RES

A drive axle wheel differential lock impact durability test bench and bench test method

The invention relates to an impact endurance test bench and bench test method for differential locks between wheels of a drive axle, comprising the drive motor and the clutch connection of the drive motor; The inertial disc is sleeved on the inertial disc bracket, the axial positioning device is sleeved on the inertial disc shaft against the inertial disc in the direction of the front bearing seat, the pressure plate for driving the motor to disengage the clutch is fixed on the inertial disc shaft, The inertial disc set is sleeved on the inertial disc shaft and connected by splines; the test clutch is fixedly connected to the inertial disc shaft, and the support unit is fixedly connected to the base; the input end of the torque measurement system is located at the input end of the drive axle, and the angle measurement system is located at the drive axle. The axle input end, the output end of the drive axle assembly are connected with the wheel hub tooling, the wheel hub tooling is connected with the wheel side drive shaft, the wheel side drive shaft torque sensor is connected, and the torque sensor is connected with the magnetic powder brake. It has the advantages of stable and controllable test conditions, low test cost and short test cycle.
Owner:FAW JIEFANG AUTOMOTIVE CO

Method for detecting corrosion resistance of metal plastic composite material

The invention belongs to the field of metal corrosion protection, and discloses a method for detecting the corrosion resistance of metal plastic composite material. The metal plastic composite material is formed by covering the surface of a metal standard test piece with a high polymer material blocking layer. The method concretely comprises the following steps: contacting the metal plastic composite material with a solution with corrosiveness to metal by the high polymer material blocking layer, wherein the metal standard test piece is separated from the solution by the high polymer material blocking layer; analyzing the concentration of metal ions in the solution; evaluating the corrosion resistance of the metal plastic composite material according to the change of the concentration of the metal ions in the solution. In the prior art, the method for directly evaluating the corrosion resistance of the metal high polymer composite material is not available; the method is used for evaluating the barrier property of the blocking layer by measuring the change of the concentration of the metal ions in the solution before and after the metal standard test piece with the blocking layer is soaked into the solution, so that the corrosion resistance of metal high polymer composite material can be further evaluated, and the evaluation system of a steel-plastic composite pipe is perfected.
Owner:SOUTH CHINA UNIV OF TECH

Method for testing and evaluating driving performance of intelligent vehicle queue

The invention provides a method for testing and evaluating the driving performance of an intelligent vehicle queue. The method comprises the following steps: firstly, constructing a queue driving performance test scene of the intelligent vehicle by integrating the existing standard and the characteristics of large truck queue driving; secondly, utilizing an improved unscented Kalman filtering algorithm to accurately calculate key kinematics parameters of each vehicle in queue driving; and finally, quantizing and outputting performance indexes of intelligent vehicle queue driving, namely kilometer passing time, queue consistency and vehicle distance stability, so as to realize scientific and quantitative evaluation of intelligent vehicle queue driving.
Owner:SOUTHEAST UNIV

Image reconstruction, projection data evaluating method and X ray CT device

A method which can reconstruct good quality images even without corresponding data according portion projection data of scanning and X-ray CT devices which can process said images reconstruction. It replaces the data points A without actual measuring projection data by its mirror point A 'with actual measuring projection data in image channel space collecting part of scanning actual measuring projection data to forming complete scanning projection data, reconstructs images according complete scanning projection data; when the mirror point A 'has not actual measuring projection data, it makes use of the actual measuring projection data of its near several data points B,C to building in data.
Owner:GECHINA RES & DEV CENT

Device and method for testing lateral extrusion capability of umbilical cable

InactiveCN113466031AStable Lateral Extrusion ForceSustained lateral extrusion forceMaterial strength using tensile/compressive forcesEngineeringTensile testing
The invention discloses a device for testing lateral extrusion capability of an umbilical cable. The device comprises a loading mechanism, a contact panel and a testing mechanism, the loading mechanism comprises a tensile testing machine and a tensile testing controller; the contact panel comprises an upper clamp and a lower clamp, the upper clamp and the lower clamp are oppositely arranged, the upper clamp is arranged above the lower clamp, and the upper clamp can move up and down under the driving of a tensile testing machine and is matched with the lower clamp to apply lateral extrusion force to the umbilical cable sample; the testing mechanism comprises a displacement-force tester and a vernier caliper, the displacement-force tester is used for collecting the lateral extrusion force and the displacement of the umbilical cable sample in real time to generate a displacement-force curve, and the vernier caliper is used for measuring the umbilical cable sample. The invention further discloses amethod for testing the lateral extrusion capability of an umbilical cable based on the device for testing the lateral extrusion capability of the umbilical cable. By adopting the device and the method, the lateral extrusion capacity can be effectively tested, and a test and evaluation system of the umbilical cable is perfected.
Owner:SUN YAT SEN UNIV

Water intake selection suitability evaluation method and device, electronic equipment and medium

The invention provides a water intake selection suitability evaluation method and device, electronic equipment and a medium, and the method comprises the steps: obtaining evaluation indexes and constraint conditions of a water intake in a target sea area range, carrying out the layering of each evaluation index, and obtaining an evaluation index grid layer; calculating the weight of each evaluation index by adopting a preset weight algorithm; based on the weight of each evaluation index, the evaluation index grid layers are superposed, and an initial evaluation result of the water intake selection suitability space partition is obtained; and correcting the initial evaluation result based on a constraint condition to obtain a target evaluation result of the water intake selection suitability space partition. According to the method, the scientificity, applicability and operability of water intake space selection and division are improved.
Owner:THE FIRST INST OF OCEANOGRAPHY SOA

A method for testing and evaluating the quality of asphalt pavement construction

InactiveCN104931331BAddressing the lack of direct response on-road performance metricsEvaluate construction quality effectivelyStrength propertiesRoad surfaceEngineering
The invention relates to a method for detecting and evaluating the construction quality of asphalt pavement. Firstly, the method of mathematical statistics is used to determine the reasonable detection points of the asphalt pavement by orderly sampling and collecting the density of sample points, so as to drill cylindrical core samples. The distance between the locations of the same group of core samples is 20-30cm, and then the rutting test is carried out to evaluate the anti-rutting performance of the asphalt pavement through the dynamic stability, which can effectively evaluate the construction quality of the asphalt pavement, and can avoid completely relying on random selection of points The one-sidedness brought about by this method can further evaluate the overall construction quality of asphalt pavement more comprehensively; the damage caused by drilling cylindrical core samples to the pavement is smaller than that of plate-shaped test pieces, and it is easy to repair, and the core samples used can also be used to test the pavement The degree of compaction further reduces the damage to the road surface; it not only ensures the accuracy of the test results, but also reduces the damage to the road surface caused by continuously drilling two core samples at the same position.
Owner:CHANGAN UNIV

A Crack Depth Detection Method for Asphalt Pavement Based on Surface Wave Dispersion Curve

ActiveCN111041949BAccurate locationGet the stiffness propertiesRoads maintainenceEngineeringStructural engineering
The invention relates to an asphalt pavement crack depth detection method based on a surface wave frequency dispersion curve. The method comprises the following steps: 1) obtaining a time domain signal of propagation of a surface wave in an asphalt pavement; 2) performing Fourier transform on the time domain signal to obtain a frequency dispersion curve of the surface wave propagated in the asphalt pavement, namely a curve of the phase velocity changing along with the frequency / wavelength; 3) performing inversion analysis on the frequency dispersion curve to obtain a change value of the shearwave velocity along with the pavement depth, obtaining an elastic modulus value changing along with the depth according to a linear elasticity theory, and determining whether a crack exists or not according to the modulus attenuation rate; and 4) according to the characteristic that the surface wave generates a reflection behavior when encountering the crack boundary, obtaining a parameter influencing the road surface crack depth, i.e., the minimum wavelength in the main frequency dispersion curve, and obtaining the estimated crack depth according to the parameter. Compared with the prior art,the method has the advantages of accurate positioning, crack rigidity detection, crack depth estimation and the like.
Owner:TONGJI UNIV

General radar antenna amplitude jitter evaluation method

The invention discloses a general radar antenna amplitude jitter evaluation method comprising the following steps: step 1, acquiring radar data, and connecting an antenna and a radar host by using a cable; step 2, reading parameters of each piece of original data, including a sampling point, a time window, a frequency and a channel number, and shaving first 200 channels of data and last 200 channels of data of the original data; step 3, obtaining a direct coupling wave positive peak maximum value of the data; step 4, obtaining a direct coupling wave negative peak maximum value of the data; step 5, obtaining the maximum value of the reflected wave positive peak of the data; and step 6, obtaining the maximum value of the reflected wave negative peak of the data. According to the evaluation method disclosed by the invention, the positive peak amplitude jitter and the negative peak amplitude jitter of the direct coupling wave and the reflection wave of the radar data are calculated by using the ground penetrating radar data and combining an antenna amplitude jitter algorithm, and the magnitude of the antenna amplitude jitter in the radar system is judged.
Owner:中国电波传播研究所

Three-dimensional detection method and device for surface form quality of paper

The invention provides a three-dimensional detection method and device for surface form quality of paper. A two-dimensional laser scanner, a three-dimensional translation table and a vacuum carrying suction cup are mutually connected, and hardware and software work together, so that three-dimensional detail point cloud data, such as height and height distribution information of the micron-precision level of any detail on the surface of the paper, of the surface form of the paper is obtained; and three-dimensional modeling and observation representation are performed for the three-dimensional data of the surface form of the paper. The detection and representation of height, texture distribution and other three-dimensional detail information of the surface form of the paper are realized; andsurface quality observation, representation and evaluation systems of the paper are enriched.
Owner:华工丽颜(广东)新材料科技有限公司 +1

A Classified and Quantitative Characterization Method for Microfractures in Fractured Tight Reservoirs

The invention relates to the technical field of oil and gas resource exploration, in particular relates to method for grading and quantitative characterization of fractured tight reservoir microcracks, which comprises the following steps: (1) observing microcrack development characteristics; (2) quantitatively evaluating and characterizing nano-size cracks; and (3) quantitatively evaluating and characterizing micro-size cracks. The invention puts forward a method for quantitative characterization of fractured tight reservoir microcracks for the first time, which enriches the tight reservoir mechanism evaluation system of China. The method disclosed by the invention can conveniently and rapidly realize the identification, evaluation and characterization of micro-size and nano-size cracks to discover the contribution of cracks of different sizes on physical properties, so as to realize the grading and quantitative evaluation of fractured tight reservoirs. The method disclosed by the invention is convenient for operation and has strong feasibility of implementation, can well reveal the reservoir mechanism of unconventional reservoir microcracks, and takes a demonstration effect on the evaluation of the fractured tight reservoirs.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Image reconstruction, projection data evaluating method and X ray CT device

Disclosed are a method for rebuilding image with good quality in the condition of no relative data and X-ray CT device which can do the image rebuilding. In the image signal channel space for collecting projected data based on spiral scanning, use the projected data of its mirror point A'to supplement the data point A without projected data, forming full scanning projected data, then in accordance with which to rebuild the image, use the projected data of multiple data points B,C adjacent for interpolation when there is no projected data.
Owner:GE MEDICAL SYST GLOBAL TECH CO LLC
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