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42results about How to "The evaluation method is accurate" patented technology

Image definition evaluation method and image definition evaluation device based on sparse representation

The invention relates to an image definition evaluation method and an image definition evaluation device based on sparse representation, and belongs to the image definition evaluation method and the image definition evaluation device. The method comprises the following steps that: color natural images are subjected to graying; a great number of image blocks with the same size are randomly extracted from the color natural images to be used as training signals; an overcomplete dictionary capable of expressing image internal medium-high-layer features can be obtained on the training signals by using a dictionary learning algorithm; images to be evaluated are blocked; the blocking size is identical to that of the training signals; the gradient and the variance of each image block are calculated; on the trained overcomplete dictionary, each image block gradient signal is subjected to sparse decomposition to obtain a sparse representation coefficient of the signal; the energy of each image block is pressed by L2 normal number quadratic sum of each line of elements in a sparse representation coefficient matrix; the energy of the image blocks is subjected to sequencing from great to small; the image blocks with greater energy are selected, the energy of the image blocks is subjected to normalization processing by using the corresponding variance, and the mass fraction of the images to be evaluated is obtained; and the image definition is evaluated according to the mass fraction of the images to be evaluated.
Owner:CHINA UNIV OF MINING & TECH

Synthetic aperture radar (SAR) image quality evaluation method based on contrast sensitivity characteristics

ActiveCN103106660AIncrease ratingsThe evaluation lacks the improvement of subjective characteristicsImage analysisSynthetic aperture radarImaging quality
The invention discloses a synthetic aperture radar (SAR) image quality evaluation method based on contrast sensitivity characteristics. The method can effectively eliminate noise interference of a high frequency part in an SAR image by utilizing similarity of wavelet decomposition and contrast sensitivity colony stimulating factor (CSF) function space frequency band pass. Simultaneously, the method is simple, convenient and accurate to calculate, free from referring the SAR image and capable of evaluating the image quality comprehensively and effectively only according to an HVSR parameter index. The method can be applied to the SAR image obtained by airborne or satellite borne synthetic aperture radar. A subjective no-reference image type SAR image quality evaluation model is established through the multichannel characteristics of contrast sensitivity in human eye vision and by combining a method of wavelet transform in image processing, and evaluation of the SAR image by real subjectivity is achieved. According to the SAR image quality evaluation method based on the contrast sensitivity characteristics, the defect that existing SAR image quality evaluation lacks subjective characteristics is remedied, and solid technical support for evaluating the SAR image and improving the SAR image quality in future is established.
Owner:BEIHANG UNIV

High-temperature high-pressure foam liquid dynamic filtration evaluation system and method

The invention relates to a high-temperature high-pressure foam liquid dynamic filtration evaluation system and method. A filtration system comprises a filtration chamber and a stirrer, wherein a paddle-type stirrer is mounted in the filtration chamber; bubbled liquid and gas are mixed fully and uniformly, and meanwhile, the foam liquid is driven to rotate and move relative to the surface of a rock core; the filtration chamber is connected with a gas supercharging device and a heating device respectively; the gas supercharging device can ensure the filtration pressure in the filtration chamber to keep stable; a gas-liquid separator is connected with the outlet end of a back-pressure valve; the gas-liquid separator is connected with a gas metering device and a liquid metering device respectively. The high-temperature high-pressure foam liquid dynamic filtration evaluation system and method provided by the invention have the advantages that the system is scientific and reasonable in design, the evaluation method is accurate, and higher creativity is achieved.
Owner:伊向艺 +2

Full-diameter rock core hydrofracturing ultrasonic detection method with independent axial stress loading

The invention relates to a full-diameter rock core hydrofracturing ultrasonic detection method under an independent axial stress loading condition. An axial loading system is designed as two semi-cylindrical anvils, and thus two sets of independent axial loads can be provided on a rock core end surface. The axial loading system is supplied with pressure through a hydraulic pump; hydraulic pressure is conducted to the two semi-cylindrical anvils inside a clamp through controllable valves respectively; the semi-cylindrical anvils are moveable parts which can displace in an axial direction, and thus two sets of axial stress can be generated in a rock core inside the clamp; and ultrasonic wave generation / receiving probes are mounted on end surfaces of the anvils, after the rock core is stable after stress deformation, a central hole of the rock core is filled with fracturing fluid, then a crack of a certain form is generated, and a general extension direction and the extension range of the crack can be detected by using an ultrasonic technique. The method is an evaluation method applicable to research on expansion rules of hydraulic fracture and natural fracture in a complex crustal stress state, and the method is scientific and reasonable in design, accurate in evaluation method and relatively high in creativity.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY

Method for rapidly evaluating aphid resistance effect of transgenic insect-resistant cotton

The invention discloses a method for rapidly evaluating an aphid resistance effect of transgenic insect-resistant cotton. A detecting instrument is an insect piercing and sucking potential instrument. The method comprises the following steps of: connecting cotton aphids with a gold wire electrode; detecting and recording electric signals generated when the cotton aphids pierce and suck for feeding on the cotton to be detected; finishing after recording for a certain time, and analysing waveforms generated when the cotton aphids pierce and suck for feeding on the measured cotton; and evaluating the aphid resistance effect of the transgenic insect-resistant cotton on the cotton aphids, wherein if an average value of the duration time of the corresponding waveforms when cotton aphid stylets suck at phloems of cotton leaves each time is less than 10 minutes and the percentage of the time sum of the corresponding waveforms when the cotton aphid stylets suck at the phloems of the cotton leaves in the total measuring time is less than 12 percent, the strain of transgenic insect-resistant cotton has high aphid resistance, and if the average value of the duration time of the corresponding waveforms when cotton aphid stylets suck at the phloems of the cotton leaves each time is more than 14 minutes and the percentage of the time sum of the corresponding waveforms when the cotton aphid stylets suck at the phloems of the cotton leaves in the total measuring time is more than 27 percent, the strain of transgenic insect-resistant cotton has no aphid resistance. Compared with the existing like detection method, the method disclosed by the invention has high detection speed, is simple and has low cost, high repeatability and high accuracy.
Owner:HENAN AGRICULTURAL UNIVERSITY

Method for detecting f.CaO influencing the utilization of stabilization of steel slag

The invention discloses a method for detecting f.CaO influencing the utilization of stabilization of steel slag, comprising the following steps: a. adding water in a steel slag sample at normal temperature, stirring and soaking to dissolve Ca(OH)2 in the slag sample; b. measuring the pH value of a free water solution which is dipped and deposited in defined time; c. continuously stirring a slag sample solid obtained by solid-liquid separation, dipping and depositing in defined time; d. repeating the steps of b and c till the pH value of the measured solution is neutral; and e. measuring the f.CaO of the slag sample solid obtained by separation by a glycol method. The method objectively reflects the degree of the content of the harmful f.CaO in the utilization of the steel slag, thereby providing a test and measuring guarantee for the utilization of the stabilization of the steel slag.
Owner:MCC BAOSTEEL TECH SERVICE

Method for improving carbon sequestration capability of marsh lands and method for evaluating sequestration capability of marsh lands

InactiveCN103210760AThe evaluation method is simpleFast and accurate carbon sequestration abilityClimate change adaptationPisciculture and aquariaMarshVegetation
The invention discloses a method for improving the carbon sequestration capability of marsh lands and a method for evaluating the sequestration capability of marsh lands. The methods are used for solving the problems that the biological carbon sequestration capability is reduced due to the vegetation degradation of the existing natural marsh lands, the carbon sequestration capability of water bodies of the natural marsh lands is low, and no method is provided for simply and quickly evaluating the carbon sequestration capability of the marsh lands. The method comprises the steps of 1, carrying out a building project for improving the carbon sequestration capability of the marsh land in a target area; 2, releasing and reproducing aquatic economic animals for improving the carbon sequestration capability of the marsh land; and 3, recovering the vegetation for improving the carbon sequestration capability of the marsh land. The method for evaluating comprises the step of evaluating the carbon sequestration capability of the marsh land in the target area according to the total sequestrated carbon of the carbon sequestration organisms in the marsh land in a growing period. The method is applied in the technical field of ecological science.
Owner:NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S

Compost maturity rapid detection test paper box and use method thereof

PendingCN110967305AOvercome the shortcomings of spectrophotometer and other professional instruments needed for the determination of amino acid contentOvercome the disadvantages of requiring specialized instruments such as spectrophotometersMaterial analysis by observing effect on chemical indicatorColor/spectral properties measurementsBiotechnologyNinhydrin
The invention discloses a compost maturity rapid detection test paper box and a use method thereof. The test paper box comprises ninhydrin test paper, a colorimetric card and a detection container, wherein the ninhydrin test paper is ninhydrin-loaded test paper, wherein the number of the colorimetric cards is multiple, the color of the colorimetric cards is bluish violet, the colorimetric cards are sequentially arranged according to the depth degree of bluish violet, and bluish violet of the colorimetric cards is determined according to bluish violet generated by reaction of amino acid solutions with different concentrations and ninhydrin; and the detection container is provided with volume scales. The compost maturity detection method can be used for simply, conveniently and quickly detecting the maturity on site, is accurate, stable and reliable in maturity detection result and more flexible to use, and is suitable for detecting the maturity of various composts.
Owner:CHONGQING TECH & BUSINESS UNIV

Biogenic amine-based pork freshness evaluation method

The invention relates to the technical field of food analysis, and specifically discloses a biogenic amine-based pork freshness evaluation method. The method comprises the following steps: (1) the content of biogenic amine in pork is measured; and (2) whether the content of biogenic amine is within a limit range is judged; if the content of biogenic amine is in the limit range, the pork is judgedto be fresh pork; and if the content of biogenic amine exceeds the highest value in the limit range, the pork is judged to be rotten or about to be rotten, wherein the biogenic amine is tyramine , cadaverine and putrescine. Tyramine , cadaverine and putrescine are used as evaluation indexes for the first time for pork freshness evaluation, and the evaluation method is scientific, accurate and reliable.
Owner:ZHONGKAI UNIV OF AGRI & ENG

Urban relocation land greening obstacle degree evaluation method

PendingCN110675052AExpress the real roleEasy to standardize calculationsResourcesEnvironmental resource managementMathematical model
The invention belongs to the technical field of urban soil greening. The invention relates to the technical field of urban relocation, and discloses an urban relocation land greening obstacle degree evaluation method, which comprises the following steps: determining evaluation indexes according to the actual situation of an urban relocation, establishing a target layer, a project layer and an index layer to form an evaluation system, and respectively carrying out weight setting on each item of the project layer and the index layer to more scientifically express the real effect of each item ofindexes; and aiming at different properties, quantities, units and the like in the index layer, standardizing the indexes by establishing a mathematical model, and enabling each index to be in the same mathematical system, so that standardized calculation is facilitated.
Owner:SHANGHAI ACADEMY OF LANDSCAPE ARCHITECTURE SCI & PLANNING

Evaluation method for acoustic environment quality monitoring

The invention discloses an evaluation method for acoustic environment quality monitoring, which comprises the following five steps of: (1) determining the acoustic environment functional area category of a monitoring point position, and carrying out noise standard limit value statistics; (2) acquiring noise detection results of the environment, the road traffic and the functional area of the determined area; (3) normalizing the obtained monitoring result corresponding to the noise standard limit value of the monitoring point position, and calculating the sound environment quality sub-index of each monitoring point every day; (4) determining single sound environment quality comprehensive indexes in different evaluation periods and areas according to the single-point sound environment quality sub-index; and (5) performing arithmetic weighted calculation according to categories to determine the acoustic environment quality evaluation index. Three indexes (regional environment, road traffic and functional area environmental noise) of conventional monitoring in the urban acoustic environment functional area are integrated, the acoustic environment quality condition of each area can be evaluated more scientifically and accurately, and decision support is provided for environmental pollution prevention and control.
Owner:TIANJIN ENVIRONMENT MONITORING CENT

Impact risk evaluation method based on roof rock stratum structure

The invention discloses an impact risk evaluation method based on a roof rock stratum structure. The method comprises the following steps of: firstly, determining an impact risk evaluation object and a regional range, then collecting geological and mining related information in an impact risk evaluation region, then performing grid division on a to-be-evaluated region based on the collected geological and mining information, calculating roof thickness characteristic parameter values of geological drill holes, and determining the roof thickness characteristic parameter values of all grid nodes; finally, performing interpolation processing on the roof thickness characteristic parameter values of the to-be-evaluated region; and determining impact risk levels corresponding to different roof thickness characteristic parameter values. According to the impact risk evaluation method based on the roof rock stratum structure, all geological drill hole characteristics in the to-be-evaluated region can be fully utilized, more reasonable and accurate evaluation of roof rock stratum structure characteristics is achieved, the limitation and singleness of manual selection of geological drill holes are avoided, and the evaluation result is closer to the actual field condition.
Owner:CHINA UNIV OF MINING & TECH +1

Test device and method for evaluating drainage asphalt pavement scattering and structure depth

ActiveCN108627409AThe evaluation index is accurateEvaluation indicators are intuitiveInvestigating abrasion/wear resistancePoint cloudFoot supports
The invention provides a test device for evaluating drainage asphalt pavement scattering and structure depth. The test device comprises a three-dimensional laser scanner, a fixed support frame and a computer, wherein the fixed support frame is a three-foot supporting or four-foot supporting support frame; the middle of the fixed support frame is connected with a carrying platform; the three-dimensional laser scanner is arranged on the carrying platform and is in communication connection with the computer. The invention also provides a method for evaluating drainage asphalt pavement scatteringand structure depth. The evaluating method is characterized in that point cloud data detected by the test device is processed and analyzed. The test device and method for evaluating drainage asphalt pavement scattering and structure depth provided by the invention has the advantages that the equipment structure is simple and portable; the test operation is simple; the evaluating method is accurateand reliable; the digitization degree is high; the influence by human factors is little; the applicability is high.
Owner:ZHONGLU HI TECH (BEIJING) HIGHWAY TECHNOLOGY CO LTD

Vulcanization resistance evaluation method

The invention discloses a vulcanization resistance evaluation method which comprises the following steps of: soaking a to-be-tested sample containing a silver protective layer in a thiourea solution, and evaluating the vulcanization resistance of the to-be-tested sample by testing the change of electrical properties of the to-be-tested sample before and after soaking. The method overcomes the defects of a method for evaluating the vulcanization resistance of a silver electrode of an electronic element by taking hydrogen sulfide and sulfur as raw materials, has the characteristics of simplicity and convenience in operation, low toxicity of the used raw materials, accuracy and rapidness in evaluation and the like, and is particularly suitable for evaluating the vulcanization resistance of a thick diaphragm resistor, a chip capacitor and a chip inductor.
Owner:SOUTH CHINA UNIV OF TECH

Balanced design method for high-temperature creep and low-temperature relaxation performance of recycled asphalt mixture

The invention discloses a high-temperature creep and low-temperature relaxation performance balance design method for a recycled asphalt mixture. The method comprises the following steps: drawing up the RAP mixing amount; determining an initial asphalt-aggregate ratio and a regenerant mixing amount; preparing n groups of different recycled asphalt mixtures; testing to obtain creep indexes and relaxation index values of the original sample asphalt mixture and the recycled asphalt mixture; standardizing creep index and relaxation index values of the recycled asphalt mixture so as to eliminate the influence of different index dimensions; calculating equilibrium points of high-temperature creep and low-temperature relaxation performance; comparing the high-temperature creep and low-temperature relaxation properties of the recycled asphalt mixture at the equilibrium point with the original asphalt mixture; and determining an optimal balance point of high-temperature creep and low-temperature relaxation performance. According to the method, the recycled asphalt mixture is subjected to balance design from the viscoelasticity, the mixing amounts of the recycling agent and the original asphalt under different RAP mixing amounts are determined, and a new thought is provided for design of the recycled asphalt mixture.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

LC-MS characteristic chromatogram of leech enzymolysis polypeptide, detection method and application of LC-MS characteristic chromatogram

The invention discloses an LC-MS characteristic chromatogram of leech enzymolysis polypeptide. The LC-MS characteristic chromatogram comprises 52 polypeptide component chromatographic peaks. The invention further discloses a detection method of the LC-MS characteristic chromatogram of the leech enzymolysis polypeptide, application of the detection method in quality control of leech medicinal materials and leech-containing preparations and application of the detection method in leech identification. According to the method, the quality of the medicinal material is controlled through the overall characterization of the leech enzymolysis polypeptide component, so that the method has relatively high accuracy and specificity; according to the method, the characteristic chromatogram for characterizing the leech enzymolysis polypeptide component is established, better specificity and efficacy correlation can be achieved, the clinical curative effect of the leech medicinal material can be guaranteed, and compared with other leech original animals, the characteristic chromatogram can effectively distinguish two leech original animals, therefore, the problems of primitive identification and authenticity identification of the leech medicinal material are effectively solved, and an accurate evaluation method is provided for identification of the leech medicinal material.
Owner:车延柠 +1

Casting-body-effect-free reservoir evaluation method based on nanoparticle filling experiment

The invention belongs to the technical field of casting-body-effect-free sandstone natural gas exploration and development, and particularly relates to a casting-body-effect-free reservoir evaluationmethod based on a nanoparticle filling experiment. According to the method, by five steps of acquiring a reservoir sample of the reservoir to be evaluated, observing reservoir space distribution of the casting-body-effect-free reservoir, determining theoretical reservoir forming possibility, verifying connectivity of the casting-body-effect-free reservoir and verifying gas bearing property and content of the casting-body-effect-free reservoir through field experiments, a casting-body-effect-free reservoir in tight sandstone is accurately evaluated, the gas connectivity is effectively evaluated, and powerful support is provided for subsequent accurate estimation of tight sandstone natural gas resource quantity, reserve submission and search exploration.
Owner:PETROCHINA CO LTD

A screening method for antithrombotic drugs based on magnetic bead separation

The invention discloses a method for screening an antithrombotic drug based on magnetic bead separation. According to the method, magnetic separation and chemical information collection (liquid chromatography-mass spectrometry) techniques are adopted; a target protein bonder is analyzed; the method is used for screening and evaluating the antithrombotic action of a drug. According to the method for screening the antithrombotic drug based on the magnetic bead separation, an optimal incubation temperature, an incubation time, a pH (potential of Hydrogen) value of a solution during incubation, ionic strength and a denaturizing cleaning solution are screened out through lots of experiments. A screening and evaluating method provided by the invention can be used for screening a large-scale natural product library or a combinatorial chemical library; in comparison with a conventional ultraviolet screening method, the screening efficiency can be obviously improved; a screening time is shortened; moreover, a synergistic effect between compounds can be discovered; the method for screening the antithrombotic drug based on the magnetic bead separation has the advantages of strong operability, quickness, high efficiency, accuracy, good repeatability and the like.
Owner:NANJING UNIVERSITY OF TRADITIONAL CHINESE MEDICINE

NF/RO microbial pollution control and cleaning comprehensive evaluation method

The invention discloses an NF / RO microbial pollution control and cleaning comprehensive evaluation method. According to the method, NF / RO membrane microbial pollution is enhanced according to different inflow water qualities, the membrane subjected to enhanced pollution is cleaned by using different bactericides and adopting different sterilization modes, and a membrane filtration test is conducted by using NF / RO inflow water. The cleaning effect of the bactericide is evaluated according to the membrane filtration performance recovery condition, meanwhile, the sterilized membrane is subjected to secondary inoculation to a sterile culture dish, and the sterilization mode and the sterilization effect of the bactericide are evaluated according to the growth of a bacterial colony of a culture medium and the bacterium breeding condition. According to the invention, through two dimensions of membrane filtration performance recovery and sterilization effect, multiple microbial pollution control and cleaning modes are systematically evaluated, a bactericide screening test is carried out by adopting an ectopic small test mode, the evaluation method is rapid and accurate, and no adverse effect on an NF / RO system exists.
Owner:GREENTECH ENVIRONMENTAL CO LTD

Breeding method of sugarcane variety with strong ratoon

The invention relates to the technical field of agricultural planting, in particular to a breeding method of a sugarcane variety with strong perennial roots, through the method for evaluating the perennial root hair growing ability of the sugarcane variety, the perennial root property of the sugarcane can be accurately evaluated, it is guaranteed that the variety with strong perennial roots can be bred, and the breeding efficiency is improved. The breeding research, development and utilization of sugarcane varieties with strong perennial roots are promoted; in addition, standard control varieties do not need to be set synchronously, the evaluation method for the sugarcane ratoon property is standardized, operation is easy, efficient and accurate, and by obtaining, popularizing and applying the strong ratoon sugarcane varieties, the cost can be saved, and the production benefits of sugarcane can be improved.
Owner:GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI

Method for evaluating immunization effect of vaccine used in breeder birds and egg birds based on egg laying protection index

InactiveCN103751808ASolve the problem of protection effect evaluationThe evaluation method is accurateIn-vivo testing preparationsPathogenic microorganismImmune effects
The invention relates to a method for evaluating immunization effect of vaccine used in breeder birds and egg birds (breeder (egg) birds for short) based on egg laying protection index, belonging to the field of preventive veterinary medicine. According to the method, the laying rates of breeder (egg) birds are set as an examination object, and the immunization performance index of bird vaccines in protecting breeder birds and egg birds from resisting pathogenic microorganism hazards and keeping good egg laying performance is evaluated by comparing the laying rate difference of vaccine immunized breeder (egg) birds and non-immunized breeder (egg) birds after being attacked by the corresponding pathogenic microorganisms. The evaluation method established by the invention is simple, accurate and scientific, is not only used for visual and scientific evaluation of the immunization effect of a vaccine with egg laying performance as index, but also used for determination of the virulence of a pathogenic microorganism which does not cause death of breeder birds (egg) birds but has an impact on the egg laying performance, so as to overcome the difficulty in method for virulence test, vaccine immunogenicity determination and vaccine immunization effect quantitative evaluation. The method of the invention fills the gap in China and abroad.
Owner:INST OF ANIMAL HUSBANDRY & VETERINARY FUJIAN ACADEMY OF AGRI SCI

Lung qi-blood barrier injury model as well as establishment method and application thereof

The invention provides a lung qi-blood barrier injury model as well as an establishment method and application thereof. In order to overcome the defects that an existing cell experiment cannot reproduce a lung qi-blood barrier matrix structure, cannot reflect the damage or repair process and mechanism of a lung qi-blood barrier on a tissue level, a protein level, a gene level and an ultrastructure, cannot reproduce the damage or repair process of the lung qi-blood barrier, and the like. The invention provides a lung qi and blood barrier injury model which is established by culturing a precise lung slice in a culture mold of a lipopolysaccharide-containing culture medium. The model not only can dynamically observe the lung qi-blood barrier injury and repair process in real time, but also can be used for exploring the drug repair mechanism after the lung qi-blood barrier injury, is used for developing or screening drugs for repairing the lung qi-blood barrier injury, and can provide a more accurate evaluation method for the drugs for repairing the lung qi-blood barrier injury.
Owner:闻庆平

Method for evaluating blackening tendency of zinc-aluminum-magnesium coated steel plate

The invention relates to a method for evaluating the blackening tendency of a zinc-aluminum-magnesium coated steel plate, and belongs to the technical field of coating evaluation. The method comprises the following steps: carrying out oxidation film removal treatment on a zinc-aluminum-magnesium coated steel plate to obtain a stable zinc-aluminum-magnesium coated steel plate; measuring the surface brightness L0 of the stable zinc-aluminum-magnesium coated steel plate; carrying out a damp-heat test on the stable zinc-aluminum-magnesium coated steel plate; measuring the surface brightness L1 of the stable zinc-aluminum-magnesium coated steel plate after the damp-heat test; subtracting the L1 from the L0 to obtain a brightness variation [delta]L; and evaluating the blackening tendency of the zinc-aluminum-magnesium coated steel sheet by using the [delta]L. By using the evaluation method disclosed by the invention, the blackening condition of the zinc-aluminum-magnesium coated steel plate can be accurately predicted, the use of the zinc-aluminum-magnesium coated steel plate is guided, and the problem of poor appearance quality after painting caused by using the blackened zinc-aluminum-magnesium coated steel plate for producing an automobile body is avoided.
Owner:SHOUGANG CORPORATION +2

A Method for Evaluation of Robot End Stiffness Performance

The invention relates to a method for evaluating the rigidity performance of a robot end, belonging to the technical field of robots. Based on Hooke's law, construct the robot end operation stiffness matrix, use the laser displacement sensor to obtain the real virtual displacement, and the force sensor to obtain the six-dimensional force information, and obtain the compensation stiffness matrix of the robot under external force loading, and the end operation stiffness of the robot based on the virtual displacement principle The matrix, the robot joint stiffness matrix is ​​obtained through the mapping relationship with the joint space; the length of the intersection of the stiffness ellipsoid and the force vector established by the terminal manipulation stiffness matrix under any posture of the robot is used as the evaluation index of the robot terminal stiffness performance. The advantage is that it is easy to operate, fast in measurement speed, reduces the influence of the stiffness of the connecting rod of the robot, the virtual displacement error of the measuring device, and the error of the stiffness measurement of the robot under external force loading, and can accurately evaluate the stiffness performance of the robot end.
Owner:JILIN UNIV

An evaluation method for energy saving and emission reduction during the construction period of asphalt roads

The invention discloses an evaluation method for energy saving and emission reduction during the construction period of asphalt roads. The method comprises: establishing an evaluation index for the construction period of asphalt roads, obtaining the actual conditions during the construction period of asphalt roads through actual measurement or on-site survey, and combining the proposed Determine the evaluation index limit or evaluation standard of the asphalt road construction period, and determine the evaluation value of each index during the construction period of the asphalt road. Combined with the weight of each evaluation index, determine the overall energy saving and emission reduction evaluation value, which is the quantification of the energy saving and emission reduction level during the asphalt road construction period. On the one hand, the method of the present invention comprehensively considers factors such as material application, machine use, and process organization in the asphalt road construction process, and can better evaluate the pollutants and energy consumption levels in the asphalt road construction; on the other hand, the technology is based on a large number of construction Based on the environmental test data and energy data, a quantitative and qualitative evaluation index is proposed, which can accurately distinguish and evaluate the energy-saving and emission-reduction levels of different road constructions.
Owner:北京交通发展研究院

Mattress pressure distribution evaluation method and device and mattress

The invention discloses a mattress pressure distribution evaluation method and device and a mattress. The method comprises the following steps of: acquiring pressure data of a plurality of piezoelectric film sensors; calculating an average value of pressure sensed by the piezoelectric film sensors, and calculating a pressure distribution index through the average value; and determining a mattresscomfort level mapped by the pressure distribution index according to a preset mapping relationship. The method is capable of objectively evaluating the comfort levels of mattresses according to pressure distribution conditions.
Owner:ZHUHAI OMESOFT HEALTH TECH CO LTD +1

Novel evaluation method for microcirculation perfusion of AMI (acute myocardial infarction) patient after PCI (percutaneous coronary intervention) operation

The invention discloses a novel evaluation method for microcirculation perfusion of an AMI (acute myocardial infarction) patient after PCI (percutaneous coronary intervention) operation. The novel evaluation method specifically includes: performing realtime three-dimensional echocardiography combined cardiac acoustic contrast before the PCI operation, and quantitatively evaluating weight of perfusion defective myocardium (dangerous myocardium) and size of a left ventricle; adopting realtime three-dimensional echocardiography combined cardiac acoustic contrast technology 48h later after the PCI operation to evaluate weight of perfusion defective myocardium (infarcted myocardium); utilizing realtime three-dimensional echocardiography technology to remeasure size of the left ventricle 6 mouths later after the PCI operation; according to a weight ratio of the perfusion defective myocardium before and after the PCI operation, evaluating whether myocardial microcirculation disturbance after the PCI operation exists or not, in other words, evaluating whether reflow occurs or not, and performing relativity analysis to evaluate relationship between the microcirculation disturbance and long-term left ventricle reconstruction. By the novel evaluation method, accuracy of existing two-dimensional ultrasonic cardiac acoustic contrast is improved; the novel evaluation method can be used for predicting long-term left ventricle reconstruction of the AMI patient after the PCI operation to find high-risk patients as early as possible and guide clinic drug treatment.
Owner:程荣超

Method for evaluating food-borne enteritis relieving ingredients based on zebrafish larvae imaging model

The invention discloses a method for evaluating food-borne enteritis relieving ingredients based on a zebrafish larvae imaging model. According to the method, a food-borne enteritis model is constructed on the basis of innate immune cell double-labeling strain and acquired immune cell single-labeling strain Tg transgenic fluorescence-labeled zebrafish; and by feedstuff feeding, in time periods when innate / acquired immune cells act, a fluorescence imaging visualization mode is adopted to effectively present behaviors of various immune cells participating in the food-borne enteritis process, which are used for evaluating the fish food-borne enteritis relieving ingredients. According to the method, the evaluation period is effectively shortened, the influence of the food-borne enteritis relieving ingredients on innate immunity and acquired immunity is more completely shown, meanwhile the defects that a traditional adult fish model is long in test period and complex in operation are overcome, and the problem that whole-body mucosal tissue immunoreaction is caused by short-term soaking of juvenile fishes is also avoided.
Owner:INST OF AQUATIC LIFE ACAD SINICA
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