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

The present invention provides a product concept performance evaluation method based on performance prediction, which can evaluate new product concept proposals in a quantitative manner, and utilize existing historical product design information to the greatest extent to support proposal evaluation. It includes the following steps: the first step: determine the performance index as the evaluation standard, and determine the weight of each performance index; the second step: analyze the historical product design information, and determine the key design parameters of each performance index; the third step: use the support vector The regression method analyzes the historical product design information, and uses the key design parameters to establish the prediction model of the corresponding performance indicators; the fourth step: take the key design parameter values ​​​​of the new product concept plan as the input of the SVM prediction model, and calculate the various performance values ​​of the plan. Prediction; the fifth step: according to the performance index prediction value of each conceptual scheme, the ideal scheme and the negative ideal scheme are defined first by using the VIKOR method, and then the optimal conceptual scheme is finally determined with the compromise planning method as the core.

The invention relates to the technical field of exploration, in particular to a shale gas reservoir stratum exploration method and device. The shale gas reservoir stratum exploration method comprises the steps of obtaining a core sample in a target exploration area, determining hydrodynamic force causes of a shale bed to which the core sample belongs according to the shale sedimentary structure of the core sample, calculating the total organic carbon value of the core sample after the hydrodynamic force causes of the core sample are determined, determining shale gas storage information of the shale bed to which the core sample belongs according to the hydrodynamic force causes and the total organic carbon value of the core sample, and conducting shale gas reservoir stratum positioning exploration on the target exploration area according to the determined shale gas storage information. According to the shale gas reservoir stratum exploration method and device, the number of referred parameters is small, data are easy to obtain, the cost for evaluation of favorable zones and the reservoir stratum in the earlier stage of exploration is reduced, the evaluation period is shortened, the reservoir stratum evaluation problem existing in the earlier stage of exploration can be better solved, and actual requirements for shale gas exploration development can be better met.

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 relates to an accelerated determining method for heat-resisting life of a plastic material and belongs to the technical field of a determining method for service life of a resin material. The accelerated determining method comprises the following processing steps: 1) preparing a sample; 2) hanging the sample under a stress-free condition in an air exchange type high-temperature accelerated aging box, blasting drying box or drying box, heatproof aging till the material enters into powdered state, thereby obtaining aging time; 3) confirming use temperature of the sample under actual use state; and 4) confirming the practical service life of the sample. The accelerated determining method for the heat-resisting life of the plastic material has the beneficial effects that: 1) the long-time durability evaluation of a great quantity of parts is avoided, a material aging process is simulated under a high-temperature condition and the material aging is accelerated, so that the material evaluation period is reduced by above 80%, the developing period of the product is shortened and a great quantity of manpower and material resources are saved, and 2) the material sample can be effectively selected according to the accelerated determining method, the flexibility is high and the defect that large equipment is required for evaluating large parts is overcome.

The invention provides a method for rapidly testing corrosion resistance of a coated plate. The method comprises the following steps: processing a test sample, performing a stone chip test, performing a neutral salt mist test and performing an electrochemical alternative-current impedance test, namely, firstly, processing a sample plate into an appropriate size, performing the stone chip test on the sample plate, putting the coated sample plate after the stone chip test into a salt mist testing tank for the neutral salt mist test, and performing the electrochemical alternative-current impedance test on the sample plate after the stone chip test and the neutral salt mist test, thereby obtaining an alternative-current impedance value. By adopting the method for testing the corrosion resistance of the coated plate, the evaluation period of corrosion resistance can be shortened, and the method is rapid in detection, accurate in result and easy to operate.

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 discloses a method for evaluating the self-discharge of a lithium ion battery. The method includes: charging the lithium ion battery to a first state of charge, and circularly charging and discharging the lithium ion battery for first preset time at a first preset temperature; charging the lithium ion battery to a second preset state of charge at a second preset temperature, storingthe lithium ion battery at a third preset temperature, and obtaining the first voltage drop change of the lithium ion battery per unit time during the storage process; repeatedly executing the circulation and the storage operations at least once, and obtaining a second voltage drop change of the lithium ion battery per unit time during each repetitive process; comparing the first voltage drop change and the second voltage drop change, evaluating the self-discharge performance of the lithium ion battery, wherein the first preset temperature is greater than the second preset temperature, and thethird preset temperature is greater than the second preset temperature. According to the technical solution of the present invention, the metal elements in the lithium ion battery are dissolved out by the circular storage at the high temperature, and the evaluation period of the influence of the metal elements on the performance of the battery is shortened.

The invention provides a method of quickly detecting the cycle performance of a battery. The method comprises the following steps: two batteries of the same model are taken as comparison samples, thecapacity retention rates corresponding to different cycle times under a normal temperature environment and a low temperature environment are tested respectively, and cycle curve diagrams are built respectively; the corresponding relationship between the cycle curve diagrams built under the two environments is acquired; a cycle curve in the low temperature environment corresponding to the battery cycle performance in the normal temperature environment is selected as a standard diagram; and a tested battery with the same model as the comparison sample is subjected to cycle detection in the low temperature environment, the standard diagram is compared, the corresponding capacity retention rate of the tested battery in the normal temperature environment is estimated, and further, the cycle performance of the tested battery at the normal temperature is detected. The application is convenient, the prediction is accurate, and the measurement period is short.

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.

The invention discloses a core displacement device capable of realizing synchronous evaluation of an oil displacement effect. The core displacement device comprises a water injection system, a core clamping device, a confining pressure pump, a pressure gauge, a constant-temperature box and a collection device, wherein the water injection system comprises a pulse-free pump, a plurality of liquid storage tanks arranged in the constant-temperature box, a valve regulation system, a plurality of buffering tanks and a liquid flow meter; an inlet of each liquid storage tank is connected with an output end of the pulse-free pump; an outlet of each liquid storage tank is connected with the corresponding buffering tank and an input end of an inner cavity of the core clamping device through the valveregulation system respectively; the core clamping device is of a barrel-shaped sealing structure placed in the constant-temperature box and the inner part of the core clamping device comprises a plurality of cavities for placing cores; the bottom of the core clamping device is connected with the confining pressure pump; the pressure gauge is connected onto the core clamping device through a thread. The core displacement device disclosed by the invention can be used for synchronously evaluating the oil displacement performance of several oil displacement agents, an evaluation period is shortened, the economic cost and the space cost are reduced and the accuracy of a result is high.

The invention relates to the technical field of plastic pipe manufacturing, and provides a method for evaluating life of a plastic pipe. The method comprises the following steps: two ends of a sampleare clamped, and the sample is cylindrical and the circumferential surface is provided with a ring-shaped pre-formed notch; the sample is stretched at a preset frequency f, and the tensile stress gradually changes back and forth between a maximum preset stress Fmax and a minimum preset stress Fmin during the stretching process, and every change of the tensile stress is regarded as a cycle; when the surface of the sample is observed, and a new crack is generated near the pre-formed notch, the number of changes in the tensile stress Nini and the stress range delta sigma are recorded; the numberof changes Nini is converted into a stretching time T; the steps using different stress ranges delta sigma are repeated in order to obtain a plurality of stretching times T; a log-log coordinate graphis drafted according to a plurality of stress ranges delta sigma and corresponding stretching times T. By this method, the evaluation period can be greatly reduced.

The invention provides a testing device and testing method for quickly determining a self-polishing rate of resin. The testing device comprises a storage tank and a fresh and salt water circulation system, wherein multiple layers of water reservoirs are arranged in the storage tank; a water inlet is formed in one side of each water reservoir and a water outlet is formed in the other side; the water inlets and the water outlets are connected with the fresh and salt water circulation system; the storage tank is provided with test panels; gaps are formed in each water reservoir; and the test panels are detachably fixed in the corresponding gaps. Through the testing device and the testing method provided by the invention, the polishing rate of the self-polished resin can be quickly evaluated,the testing method is shorter in time, smaller in error and higher in efficiency in comparison with a method of determining an abrasion rate after a paint is prepared, and a fast and efficient methodis provided for laboratory resin synthesis and resin screening.

The invention belongs to the technical field of diesel engine aftertreatment device aging test and discloses a diesel engine DPF system rapid aging test method and system, a medium and application. The method comprises steps that temperature-time characteristics corresponding to all temperature intervals in the actual aging process of the diesel engine DPF system are converted into multipoint temperature-time characteristics of rapid aging circulation according to the Arrhenius formula; the actual aging information of the diesel vehicle is collected, multi-point rapid aging temperature and corresponding time are calculated based on the collected information and the type of the diesel engine, and an equivalent rapid aging cycle is established; various different DPF parts to be aged are selected, and the selected DPF parts to be aged are preprocessed; a rack rapid aging test is carried out based on the established equivalent rapid aging cycle; after rapid aging, performance evaluation is carried out on each DPF piece. According to the method, the expected aging effect can be quickly and conveniently achieved, and a lot of time, manpower and material resources are saved; The method is closer to the actual aging state of the DPF, and the equivalent effect is good.

The present invention belongs to the technical field of water supply detection, and provides a water supply network stability index system and an evaluation method thereof. The method comprises a water quality stability evaluation index system and a supply network surface physicalchemical stability index system. The water quality stability evaluation index system comprises total alkalinity, calcium hardness and CCPP, and the supply network surface physicalchemical stability index system comprises a pipe scale total amount, an [Alpha]-FeOOH, [Beta]-FeOOH and Fe3O4. The application of the watersupply network stability index system and the evaluation method thereof can effectively evaluate the stability of the water supply network and can accurately predict the pipe network health conditionso as to facilitate more comprehensive guide of the operation and maintenance business such as water supply network water quality guarantee and pipeline update maintenance.

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.