39results about How to "Shorten the evaluation period" patented technology

The present invention discloses an assessment system of concrete chloride ion diffusion coefficient. The system includes a detection device, a processing device and a result output device. The detection device is used for detecting an initial current value of a concrete specimen, and an initial temperature, a finish temperature and a chloride ion penetration depth of an anode solution of the concrete specimen, and transmitting the results to the processing device; the processing device is used for receiving the initial current value transmitted by the detection device, comparing the initial current value with a preset threshold; when the initial current value is less than the preset threshold, the assessment result is directly delivered to the result output device; and when the initial current value is greater than or equal to the preset threshold, the processing device according to a preset algorithm calculates an assessment result by using an average value of the initial temperature and the finish temperature of the anode solution of the specimen, and the chloride ion penetration depth. The present invention also provides an assessment method of concrete chloride ion diffusion coefficient. The assessment system provided by the invention greatly reduces the assessment cycle of the concrete chloride ion diffusion coefficient.

The invention discloses a method for quickly evaluating the performance of a weather-resistant steel rust layer for a power transmission tower in a coastal atmospheric environment and belongs to the technical field of performance evaluation of the weather-resistant steel rust layer. According to the method, a corrosion simulation test is performed according to the service characteristics of a simulated coastal atmospheric corrosion environment; with the local corrosion of weather-resistant steel under the coastal atmospheric corrosion environment mainly applied, local corrosion general situation D2 and comprehensive corrosion general situation D1 are compared with each other, so that an evaluation basis index K value can be obtained; the corrosion tendency of a material is judged through local corrosion tendency observation; and therefore the measurement and evaluation time can be greatly shortened. Compared with an original weightlessness method which reflects comprehensive corrosion,the method of the invention enables a user to observe corrosion depth and the reflects the problem of local corrosion; the comprehensive corrosion measurement of the weightlessness method needs at least more than 10 days, while the method of the invention can be used for effectively shortening the evaluation period to be 2 or 4 days, and has the advantages of cheap equipment, simple operation andpopularization significance.

The invention relates to the technical field of reactor thermal hydraulic design and safety analysis, and particularly discloses a large-break water loss accident analysis method and system. The method includes following steps: selecting index parameters related to the nuclear power plant large crevasse water loss accident; establishing a steady-state calculation model, performing steady-state calculation on the related parameters of the large break water loss accident, and performing parameter value verification after the steady-state calculation; establishing a transient calculation model and carrying out transient calculation on related parameters of the large crevasse water loss accident, performing comparison with actual crevasse and nuclear power plant external power conditions according to a calculation result, and when deviation occurs, reconstructing the transient calculation model and performing transient calculation; and performing safe water injection deduction to obtain a liquid level parameter value, updating the transient model, performing recalculation on the basis of a steady-state calculation result, and performing parameter display and analysis after calculation is completed. According to the method and the system, the problems of multiple working conditions, complicated process and high human error rate of pressurized water reactor large break water loss accident analysis are solved.

The invention relates to a rapid evaluation method for cycle performance of a lithium iron phosphate battery negative electrode material, which specifically comprises the following steps: (1) comparing normal-temperature 2C cycle performance and high-temperature 55DEG C 1C cycle performance of a standard battery and a to-be-tested battery, the difference between the to-be-tested battery and the standard battery is only that the negative electrode materials are different, a standard negative electrode material with qualified cycle performance is adopted in a standard battery B, and the cycle performance of the to-be-tested battery is not qualified; if the normal-temperature 2C cycle performance and the 1C cycle performance at the high temperature of 55 DEG C of the to-be-tested battery are superior to or equal to those of a standard battery B, the to-be-tested battery can be used as a substitute material of a standard negative electrode material, otherwise, the next operation is carried out; and (2) compared with the Rct growth rates of the negative electrodes of the two standard batteries and the battery to be tested in the normal-temperature 1C cycle process, the negative electrode material with the smaller Rct growth rate has better normal-temperature 1C cycle. The method is simple, rapid and easy to operate, and can be used for rapidly evaluating the negative electrode material.

The invention relates to a testing device for MBR membrane materials for water treatment, in particular to a testing liquid for testing pollution resistance of MBR membrane materials. The testing liquid comprises components of 50 mg / L to 2200mg / L of metal inorganic salts, 10 mg / L to 200mg / L of polysaccharide substances, 10 mg / L to 200mg / L of proteinaceous substances, 10 mg / L to 200mg / L of macromolecule organics, 1000 mg / L to 9000 mg / L of particulate matters with particle diameters smaller than 200 meshes, 0 mg / L to 800 mg / L of colloid substances, and the balance water. The testing liquid and the testing device can be used for testing pollution resistance of membrane material products rapidly, and the evaluation period of current common techniques is shortened greatly; and the testing liquid and the testing device can be widely applied in pollution resistance evaluation of various micro-filtration membrane material products and critical flux and operation flux testing.

The invention belongs to the technical field of biomedical engineering, and discloses a 3D printing-based calcium phosphate ceramic high-throughput screening model and a preparation method and application thereof. The 3D printing-based calcium phosphate ceramic high-throughput screening model is calcium phosphate ceramic prepared from original ceramic powder through 3D printing, and comprises a plurality of screening units with different material parameters or / and pore structure parameters. The preparation method comprises the following steps: designing a model; preparing light-cured ceramic 3D printing slurry; performing 3D printing to obtain a ceramic body; and degreasing and sintering the ceramic body to obtain the calcium phosphate ceramic high-throughput screening model based on 3D printing. The invention further provides application of the high-throughput screening model in screening of bone induction materials. The calcium phosphate ceramic high-throughput screening model integrating multi-structure and multi-component characteristics is designed and obtained, high-efficiency and low-cost calcium phosphate ceramic high-throughput preparation and biological evaluation are achieved, and the model has good application prospects in the field of biomedical materials.

The invention provides a vehicular airport clearance dynamic collection and management system as well as a control method and an airport clearance evaluation method thereof. The vehicular airport clearance dynamic collection and management system is mounted on a vehicle and comprises a main control computer, a total station, a GPS (Global Position System) module and a vehicle power supply inverter. The main control computer is arranged in a cab. The total station is mounted in a back vehicle hopper of a collecting vehicle and is connected with the main control computer through a data wire. The GPS module is mounted at the center of the bottom of the total station and is connected with the main control computer through a power supply wire and a data wire. The vehicle power supply inverter is connected with the main control computer through a power supply wire. The vehicular airport clearance dynamic collection and management system disclosed by the invention is mounted on the conventional pickup truck and the like so as to form the collecting vehicle, so that the horizontal coordinate and the altitude of a barrier in an airport clearance management area can be dynamically displayed and collected. By combining the airport clearance evaluation method provided by the invention, the influence of the newly-added barrier on airport operation security can be analyzed at any time, so that the evaluation period is shortened, the evaluation cost is reduced, the work intensity is reduced and the work efficiency is improved.

The invention relates to the technical field of weld joint toughness, in particular to a weld joint toughness evaluation method which comprises the following steps: acquiring a test sample; performing an impact test on the weld joint position of the sample piece; acquiring an impact load-displacement curve of the sample piece according to the impact test data; and determining the ductile-brittle state of the sample piece according to the impact load-displacement curve, and evaluating the toughness degree of the welding seam according to the welding seam impact absorption energy of the sample piece under the condition that the sample piece is in a ductile state. The evaluation accuracy is improved, the subsequent passing of the whole vehicle real object verification is avoided, the whole evaluation period is shortened, the evaluation efficiency is improved, and the cost is saved.

The invention belongs to the technical field of aging testing of diesel engine post-processing devices, and discloses a rapid aging testing method, system, medium and application of a diesel engine DPF system, including: temperature-time characteristics corresponding to each temperature range in the actual aging process of the diesel engine DPF system According to the Arrhenius formula, it is transformed into the multi-point temperature-time characteristics of the rapid aging cycle; the actual aging information of diesel vehicles is collected, and the multi-point rapid aging temperature and corresponding time are calculated based on the collected information and the type of diesel engine, and the equivalent rapid aging is established cycle; select a variety of DPF parts to be aged, and pre-treat the selected DPF parts to be aged; conduct a rapid aging test on the bench based on the established equivalent rapid aging cycle; and perform a performance test on each DPF after rapid aging Evaluate. The invention can quickly and conveniently achieve the expected aging effect, save a lot of time, manpower and material resources; it is closer to the actual aging state of the DPF, and the equivalent effect is good.

The invention relates to a reactor for catalytic reaction research. It includes: kettle lid, kettle body, inlet, outlet, temperature measurement port, motor dirve shaft, blade and catalyst swivel. Kettle body is in a U shape. Inlet and temperature measurement port are on top of kettle lid. Outlet is at bottom of kettle body. Motor dirve shaft extrudes into kettle body through kettle lid. Blade is fixed on motor dirve shaft. Catalyst swivel is made up with upper clamping bar, lower clamping bar, inner screen cloth and outer screen cloth. It lies in bosom of kettle body. Inner screen cloth and outer screen cloth lies in middle of upper clamping bar and lower clamping bar which fixes with motor drive shaft. Upper clamping bar connects to blade. The invention can load plenty of catalyst to reduce evaluation period of catalyst. It can be used in reaction containing heavy components with a simple construction and long life.

The invention belongs to the technical field of uranium mineralization prediction, and specifically relates to a method for identifying and locating favorable sand bodies of sandstone-type uranium deposits in a basalt-covered area, comprising the following steps: Step 1: find out the scope of the basalt-covered area on the surface; Step 2: calculate the basalt The buried depth of the basement in the coverage area; Step 3: Find out the basement lithology of the basalt-covered area, and determine the favorable sandstone-type uranium ore-forming section; Step 3.1: Interpret the basement lithology of the aeromagnetic data; Step 3.2: Determine the favorable sandstone-type uranium ore-forming section; Step 4: Find out the characteristics of sand bodies in the sedimentary strata covered by basalt; Step 4.1: Carry out broadband magnetotelluric profile survey; Step 4.2: Find out the characteristics of sand bodies in the sedimentary strata covered by basalt; Step 5: Identify and locate the formation of sandstone-type uranium deposits Ore-favorable sand bodies; Step 5.1: Identify and locate favorable ore-forming sand bodies in the basin area; Step 5.2: Identify and locate favorable ore-forming sand bodies in favorable channel development areas in uplift areas; Step 6: Drill to verify favorable ore-forming sand bodies.

The invention discloses a combined index-based image segmentation result quantitative evaluation method which comprises the steps of selecting multiple pictures of which the types are the same as the type of an image to be subjected to segmentation result evaluation, and segmenting the pictures to obtain a segmentation result set; performing manual subjective evaluation on the segmentation result set, and acquiring subjective evaluation results of all segmentation results to obtain a subjective evaluation set; performing multi-index objective evaluation on the segmentation result set, and calculating objective evaluation index values of all the segmentation results to obtain an objective evaluation set; training to obtain a trained classifier by taking the objective evaluation set as the input of the classifier and taking the subjective evaluation set as the output; calculating objective evaluation index values of segmentation results of the image to be evaluated; inputting the objective evaluation index values into the trained classifier to obtain an evaluation result. By adopting the method, the image segmentation evaluation result representing a worker evaluation criteria of a field can be obtained, the cost is reduced, the evaluation cycle is shortened, and more convenience, universality and easiness in implementation are realized.

The invention discloses a method for testing the interface shear strength of a thermosetting resin-based composite material based on the magnetic fiber stress resistance effect. The present invention comprises: S1: the preparation of the sample to be tested; S2: the impedance performance test of the sample to be tested and the statistics of the resin embedding length, obtain the relationship map of impedance-embedding length; S3: according to the impedance change value and the total embedding length The slope k of the fitting curve is substituted into the impedance-interfacial shear strength conversion formula to obtain the interfacial shear strength of the composite material. The present invention uses a stress transfer model to indirectly test the interface shear strength by measuring the impedance of the magnetic fiber. The method has low requirements for sample preparation and testing equipment, is simple to operate, and can improve the efficiency and accuracy of the composite material interface shear strength test. It is used to quickly judge and screen thermosetting resin systems with good interfacial adhesion properties.

The invention discloses a method for evaluating ingredients for alleviating food-borne enteritis based on a zebrafish juvenile imaging model. This method is based on the innate immune cell double-labeled strain and the acquired immune cell single-labeled Tg transgenic fluorescently labeled zebrafish model to establish a food-borne enteritis model. The visualization method of imaging effectively presents the behavior of various immune cells involved in the process of food-borne enteritis, and is used to evaluate the ingredients for alleviating fish food-borne enteritis. This method effectively shortens the evaluation cycle, fully demonstrates the effects of alleviating food-borne enteritis ingredients on innate and acquired immunity, and overcomes the shortcomings of traditional adult fish model tests, such as long test cycle and complicated operation, and avoids short-term immersion of juveniles. Fish can cause problems with systemic immune responses in mucosal tissues.

The invention discloses a simulated ship waste gas system for wet washing. The system comprises a gas distributing and mixing subsystem, a temperature control subsystem, a wet washing subsystem and a flue gas analyzing subsystem, wherein the output end of the gas distributing and mixing subsystem is connected with the temperature control subsystem, the output end of the temperature control subsystem is respectively connected with the wet washing subsystem and the flue gas analyzing subsystem, and simulated flue gas is connected with the flue gas analyzing subsystem through a back pressure regulating valve after being processed by the wet washing reaction. The system has the benefits that the simulated ship waste gas system which is used for researching a wet washing technology under the man-made controlled condition in a laboratory is provided, the air pressure in the system is constant, and the flow output is stable. The precision of the harmful components in the simulated ship waste gas is high, the processing effect for the wet washing can be evaluated in a quantitative manner, and the reliability and the repeatability of the evaluated results are good. The amount of the required flue gas for the test is small, the testing time is short, and the testing cost is low.