130results about How to "Evaluation method is simple" patented technology

The invention discloses an offshore area ecological environment comprehensive evaluation method based on the analytic hierarchy process and the comprehensive evaluation method. The method comprises the following steps: (1) obtaining the essential data of each index of the offshore area ecological environment quality; (2) selecting appropriate evaluation indexes to establish a comprehensive evaluation index system; (3) scoring each index; (4) utilizing the analytic hierarchy process to establish the hierarchical relationship of the indexes and determine the weighting of each index; (5) calculating the comprehensive score A of the offshore area ecological environment quality according to the formulas (1-8); and obtaining the quality classification of the offshore area ecological environment according to the comprehensive score of the offshore area ecological environment quality. The method of the invention overcomes the problem that the evaluation result of the single factor evaluation method is single and is difficult to completely reflect the offshore area ecological environment quality.

The invention discloses a crosslinked polyethylene cable residual life assessment method which comprises the following steps: residual breakdown voltage of a cable is obtained; and aging rate of the cable is calculated according to the cable aging rate formula of Sd=(H*E-Sy)/N, wherein Sd is aging rate, Sy is residual breakdown voltage of the cable, H is major insulation design thickness of the cable, E is major insulation design anti-electric field intensity and N is operational number of years of the cable; and residual useful life is calculated according to the residual useful life formula of SK=(H*E-SZ)/Sd-N, wherein SK is residual useful life of the cable and SZ is end-of-life voltage of the cable. The step of obtaining the residual breakdown voltage of the cable further comprises the following steps: major insulation resistance between each cable conductor and a copper mask tape is measured; power frequency voltage is applied between each cable conductor and the copper mask tape; and a power-frequency step-by-step breakdown voltage test is carried out so as to obtain the cable main insulation based residual breakdown voltage.

The invention discloses a device for evaluating the automobile exhaust degradation effect of an OGFC mixture. The device comprises a closed container, an automobile engine, an automobile exhaust analyzer, a track board test piece, and air supplying devices, wherein the air supplying devices are arranged in the closed container. The invention further discloses an evaluation method which comprises the following steps in sequence: preparing the track board test piece, and generating automobile exhaust; simulating the degradation of automobile exhaust on a pavement and testing the concentration of each gas in the automobile exhaust; processing data. The track board test piece is prepared from the OGFC mixture which is added with a photocatalytic material; the evaluation index, used for evaluating the automobile exhaust degradation effect, of the OGFC mixture is taken as the degradation rate. The evaluation device can simulate the automobile exhaust degradation processes of the OGFC mixture in different illumination conditions by controlling the number of ultraviolet lamp tubes. The evaluation method is accurate and reliable, and coincides with the automobile exhaust degradation situation on a real pavement.

The invention relates to a testing device and an evaluation method for static water stability of cohesive soil aggregates. The testing device comprises a glass bathtub; a temperature sensor; a resistance type heater; a temperature controller; a separate plate; an accommodating zone; a water inlet switch; a water inlet pipe; a water inlet storage container; a water outlet switch; a water outlet pipe; a constant temperature water bath device composed of a micro high temperature resistant water pump and a water outlet storage container; a container lift control system composed of a support frame, a support frame pedestal and a lifter; a weight monitoring device composed of a hanging electronic scale and a telescopic hook; and a test container composed of a suspension loop and a stainless steel annular sieve. The evaluation method comprises following steps: assembling of the testing device; setting of testing temperature; delivering of soil samples; performing of testing experiment; evaluating of the stability, and cleaning of the test container. Testing precision on the static water stability of the cohesive soil aggregates is high; the testing device is convenient to assemble, and simple to operate; cost is low; and evaluation on the stability of the cohesive soil aggregates can be performed quickly and effectively.

The present invention relates to a CAN data-based driver comprehensive quality evaluation method. The method comprises a first step of acquiring a latitude and a longitude, an engine rotation speed, a vehicle speed, a steer wheel rotation angle, an oil consumption, a throttle angle, and a brake pedal state, and calculating instantaneous oil consumption, acceleration, and a ratio of the engine rotation speed to the speed; a second step of determining evaluation factors, including a steering wheel rotation angle entropy H (theta), a steering wheel rotation angle rate V<theta>, a motor vehicle speed entropy H (v), an acceleration absolute value a, an acceleration strength V, a positive acceleration a, and a ratio phi of the engine rotation speed to themotor vehicle speed; a third step of establishing weight alpha of a single factor in evaluation of the driver comprehensive quality by using a vague layer analysis method, and establishing a desired weight vector Q; a fourth step of establishing as few as membership functions, and resolving a single factor vague determining matrix R; and a fifth step of resolving a determining vector theta=Q*R, and analyzing and resolving to obtain a determining set for evaluating the driver comprehensive quality. The method combines quantitative algorithm and qualitative algorithm, so as to evaluate the driver comprehensive quality and improve the evaluation accuracy.

The invention discloses a support adaptability evaluation method based on a coupling relationship of support and surrounding rock. The support adaptability evaluation method comprises the following steps: creatively establishing a coupling relationship model of a hydraulic support and the surrounding rock, analyzing the rigidity coupling relationship, the strength coupling relationship and the stability coupling relationship of the hydraulic support and the surrounding rock, and establishing an adaptability evaluation index system of the support and the surrounding rock; according to requirements on a surrounding rock control effect by different mining methods, determining an evaluation index system weighted value of the support and the surrounding rock; according to actual measurement data obtained in a site use process by the hydraulic support, determining an independent evaluation result of an evaluation index of the support and the surrounding rock; according to the target weighted value and the independent evaluation result of the evaluation index, obtaining an adaptability comprehensive evaluation result of the support and the surrounding rock; and through analysis to the evaluation result, providing an improved opinion on the design of the hydraulic support. The invention can comprehensively reflect an adaptation situation to the surrounding rock by the support and problems, provides an import theoretical and data support for formulating an improved design scheme of the support, is simple and effective, is strong in practicality and fills up a blank of an adaptability evaluation method of the mining hydraulic support and the surrounding rock in China.

The invention provides an indoor heat environment comfort evaluation thermal manikin system and an indoor heat environment comfort evaluation method. The indoor heat environment comfort evaluation thermal manikin system comprises a thermal manikin, a measuring and control system and an evaluation system. The thermal manikin has good joint motion capability, and has 16 independent measuring and heating control split regions; the split regions sufficiently consider the physiological structure characteristics of a human body and the heat exchange characteristics of the human body in the heat environment with the environment. The indoor heat environment comfort evaluation thermal manikin system has the advantages that the application range is wide; the system can be applied to heat environment in various fields such as civil use, military use, aero-space and navigation; the heat environment parameters can be directly and accurately measured; the heat environment comfort can be objectively evaluated; the test and the evaluation result is stable and accurate; the repeatability is high; the indoor heat environment comfort evaluation thermal manikin system conforms to the real human body heat state; the reasonableness and the reliability are realized.

The invention discloses a system for collecting the vehicle-mounted airport concrete road surface situation and a control and evaluation method. The system is installed on a vehicle to form a collecting vehicle. The system comprises a mater control computer, a photoelectric encoder, a camera and a vehicle-mounted power supply, wherein the mater control computer is arranged in a cab; the photoelectric encoder is installed at the outer side of the center position of a rear wheel on the collecting vehicle by a bracket; and the camera is installed behind the collecting vehicle; the vehicle-mounted power supply is connected with the mater control computer and the camera by a power line. The system for collecting the vehicle-mounted airport concrete road surface situation is installed on a four-wheel business vehicle to form the collecting vehicle, and the collecting vehicle can quickly collect the image of an airport concrete road panel. The damage type and degree of the road panel can be automatically analyzed by combining with the evaluation method for the airport concrete road surface damage situation, which is disclosed by the invention, the road surface damage condition can be evaluated, the damage level of an airport concrete road surface is evaluated, so that the amount and the labor intensity of investigating officers can be reduced, and working efficiency is improved. In addition, the control and evaluation method is simple and easy to realize.

The invention discloses an evaluation method for hydration characteristics of layered hard brittle mud shale. The evaluation method comprises the following steps: describing the rock, then coring the rock, and preparing a rock core sample; restoring the rock core sample to a stratum in-situ porosity fluid saturation state; testing a longitudinal wave speed and a transverse wave speed of the rock core sample under the stratum in-situ state condition, then changing the porosity fluid character, and testing the longitudinal wave speed and the transverse wave speed of the rock core sample after the porosity fluid character is changed; evaluating the hydration characteristics of the layered hard brittle shale under the variation situation of the longitudinal wave speed and the transverse wave speed of the rock core sample under different porosity fluid character conditions. The evaluation method is simple, easy to understand, convenient to operate and capable of quantitatively evaluating the hydration characteristics of the rock, the scientific evidence can be provided for stably control of the well wall when the layered hard brittle mud shale is drilled, the instability of the well wall can be better prevented, and the underground complicated situation can be prevented.

The invention discloses a method for quantitatively detecting welding spatter by utilizing the acoustic emission signal energy equivalent of a resistance spot welding process. The method comprises the steps of collecting a structural load acoustic emission signal of the resistance spot welding process in real time, and drawing a dynamic oscillogram; extracting the acoustic emission signal of the welding spatter; counting the amplitude distribution of signal pulses; classing the amplitude into a plurality of grades Mi, and respectively accumulating according to the ringing count Ni of the acoustic emission signals exceeding the amplitude grades; taking an X axis as an amplitude grade value Mi and Y axis as a log value log10Ni of acoustic emission signal ringing count, accumulated according to the acoustic emission signals exceeding the amplitude grades Mi, to obtain a spattering distribution diagram; performing linear fitting; according to a right-angled triangle formed by the fit line and the X axis and the Y axis, calculating the area of the triangle, which is the energy equivalent of the welding spatter in the corresponding resistance spot welding process. The higher the equivalent value is, the greater the welding spatter is, namely that the larger the influence of the welding spatter on the molten core quality is. According to the method, the size grade and mode of the welding spatter can be accurately and quantitatively evaluated, and the fast, accurate and quantitative detection on the welding spatter of the resistance spot welding can be realized.

The invention belongs to the technical field of quality control over cigarette essence and flavors and particularly relates to a method for selecting cigarette tree moss absolute oil. The method comprises the steps that firstly, chromatographic peaks of main volatile and semi-volatile components in cigarette tree moss absolute oil essence are distinguished, then a critical point of quality fluctuation of the cigarette tree moss absolute oil essence is set according to a scent evaluation method, and the quality fluctuation situation of the tree moss absolute oil is assessed comprehensively according to a large peak change value, a small peak change value and the setting situation of the critical value. Through comprehensive analysis and research, it can be seen that compared with a conventional method of only detecting physical and chemical indexes, associativity between an evaluation method and the chemical components in the essence is higher and more sensitive, when the tree moss absolute oil quality is fluctuated, easier, rapider and more accurate judgment can be conducted through the evaluation method, thus good technical support is laid for tree moss absolute oil selection andcigarette quality stabilizing, and good practicable value is achieved.

The invention discloses a lake wetland eutrophication evaluation model construction method. The lake wetland eutrophication evaluation model construction method comprises the following steps: S1, constructing an ecological risk evaluation index system of a lake wet region; S2, determining a risk upper limit and a risk lower limit standard value of each index in the index system according to the existing standard values, and performing standardized processing on the data of each station; S3, carrying out risk degree calculation; S4, revealing the spatial and temporal distribution difference ofthe ecological risk of the lake wetland area; S5, setting water quality information; S6, setting pollution accidents; S7, inputting a hydrodynamic boundary condition; S8, running a simulation scheme;S9, reading the actual measurement data of the lake wet region monitoring points; S10, calculating the eutrophication level with the highest sum of the determinacy evaluation values; and S11, according to the main factors causing the lake wetland area risk in the step S4 and the curve analysis chart in the step S8, comparing the step S9 and the step S10, and generating a comprehensive evaluation model. The method has the advantages of being accurate in evaluation, visual, reliable, high in operability and the like.

The invention discloses a method for quantitatively evaluating the necessity of monitoring icing on a transmission line. The method includes the first step of considering the importance degree of the transmission line where a line tower is located in a power grid, the ice melting and ice resistance performance of the line tower, the operating environment where the line tower is located, historical icing fault statistics and line operation maintenance, and building a hierarchical type evaluation index system, the second step of determining an evaluation standard according to all types of evaluation indexes in an index layer, and obtaining an evaluation score table of the all types of evaluation indexes, the third step of giving the weight coefficient of each index in an item layer and the weight coefficient of each index in the index layer according to the importance degree of each type of evaluation indexes in the item layer and the importance degree of each type of evaluation indexes in the index layer, the fourth step of calculating the evaluation score of the necessity of monitoring icing according to the scoring condition and the weight coefficient of each index in the index layer, and the fifth step of judging the necessity of monitoring icing on the transmission line according to the overall evaluation score condition of the necessity of monitoring icing. The method can quantitatively evaluate the necessity of monitoring icing in the section where the transmission line tower is located, and the evaluating method is simple and feasible.

The invention discloses an asphalt mixture multi-stage loaded high-temperature creep curve analysis method based on an axle load spectrum. Creep curves at the second creep stage in different-stage loading process are subjected to linear fitting to acquire a cumulative microstrain growth slope, the responsive high-temperature creep characteristic indexes LSI, CDA and MFN are calculated according to the formula. In the parameters, the relatively big MFN represents relatively strong permanent deformation resisting capability of the mixture under the multi-stage loading action, the relatively small LSI shows that the mixture is relatively insensitive to variation of axle load and probably is relatively strong in heavy duty resistance, and the relatively small CDA shows that the creep damage generation rate of the asphalt mixture is relatively balanced and the asphalt mixture is insensitive to loading of a circular spectral pattern.

The invention provides a noise reduction system performance evaluation method and system. The method includes determining the noise reduction depth d on the basis of the noise reduction curve; calculating the comfort level C1 of ambient sound before noise reduction and the comfort level C2 of ambient sound after noise reduction, and obtaining the comfort level change amount delta C; based on the noise reduction depth d and the comfort level change amount delta C, evaluating the noise reduction performance. A novel multi-dimensional evaluation method is formed by increasing comfort level evaluation items in an existing noise reduction system evaluation method, so that the objective noise reduction effect after noise reduction can be achieved, the degree of improvement of the subjective feeling of people can be reflected, and the method is a scientific and comprehensive evaluation method, meanwhile, the design of the noise reduction system has a guiding function, and the evaluation method is simple and easy to implement.

The invention discloses a method for evaluating resistance spot welding spattering quantitatively in real time through acoustic emission signal frequency spectrum. The method comprises the following steps that structure load acoustic emission signals in the resistance spot welding process are collected in real time, and a dynamic oscillogram of the signals is drawn; acoustic emission signals of welding spattering are extracted according to the dynamic oscillogram of the structure load acoustic emission signals in the resistance spot welding process; the frequency spectrum of the acoustic emission signals in the welding spattering process is calculated, and a spectrogram is drawn; frequency spectrum lines with the frequency ranging from 1800 HZ to 2600 HZ are extracted through a band-pass filter; the arithmetic mean value of three maximum peak values of the frequency spectrum lines with the frequency ranging from 1800 HZ to 2600 HZ is calculated; according to the judgment rules of quantitative evaluation of the amount of welding spattering, the larger the arithmetic mean value of the three maximum peak values of the frequency spectrum lines with the frequency ranging from 1800 HZ to 2600 HZ is, the larger the amount of the spattering in the resistance spot welding process is. Analytical calculation of the frequency spectrum can be carried out through both power spectrum and amplitude spectrum. Through the method for evaluating resistance spot welding spattering quantitatively in real time through the acoustic emission signal frequency spectrum, the quantitative evaluation of the amount of spattering in the resistance spot welding spattering process can be achieved.

The invention discloses a method which uses lapping markers to evaluate a welding seam K value detected by X-ray, comprising the steps as follows: the lapping marker is arranged at two endpoints of effective evaluation length of a workpiece to be monitored; a central mark is arranged at the central position of the transparent position section of the workpiece to be monitored; subsequently, the welding seam of the workpiece to be monitored is transilluminated so as to obtain the transparent negative of the welding seam of the workpiece to be monitored; on the transparent negative, when the image of a pointer is not coincident to the image which controls a ring, the K value of the photographed negative is qualified; and when the image of the pointer is coincident to the image which controls the ring, the K value of the photographed negative is not qualified. The method solves the problem that in the prior art at home and abroad, whether the photographed welding seam negative meets the requirement or not has no qualitative analysis, thus ensuring the correctness of the negative used for the welding seam detection and analysis. The evaluation method is simple and objective, can be used for judging whether the negative quality evaluation is qualified or not, can be used for judging whether an operator for a ray negative seriously executes the specific process, meanwhile, the negative meeting the requirement evaluated by the method can be directly used for the analysis on the welding seam.

The invention discloses a modeling and predicting method for instantaneous temperature characteristics of a multiphase pump cavity, which comprises the following steps of 1) establishing a CFD numerical model of the instantaneous temperature characteristics of the multiphase pump cavity under a frequency-variable oil-gas multiphase working condition, and providing initial data for Gaussian processregression GPR experience modeling; 2) classifying M sets of samples provided by the CFD numerical model, namely dividing each set of CFD simulation data into L sample subsets; Independently carryingout learning training on each sample subset, and establishing GPR prediction sub-models of the L pump cavity instantaneous temperature characteristics; 3) carrying out online assessment on the GPR prediction model; taking the GPR model as an input sample set, taking the GPR model as each sample xt and i of the input sample set, and independently selecting one most appropriate GPR model for onlineprediction; 4) integrating single sample prediction probability information provided by the GPR; carrying out THE online evaluation on the CFD numerical model; and selecting a most appropriate GPR and CFD numerical model by taking the GPR and CFD numerical model as a whole input sample set to realize online and offline prediction.

The invention relates to a credit rating method for an electricity selling (distribution) company. The method comprises the following steps: formulating an evaluation standard index system of credit evaluation elements, formulating standard values of the evaluation elements, and formulating a calculation method and a scoring basis of the index elements; collecting evaluation data of the evaluationelements of the company to be evaluated, determining the score of each evaluation element according to the evaluation standard and the evaluation data of each evaluation element, summarizing the comprehensive score of each index, and determining the credit rating; making credit reports. The invention provides a credit rating method for an electricity selling (distribution) company; a plurality ofevaluation factors are adopted to comprehensively evaluate the company, descriptive language of non-financial indexes in the industry is converted into scores, a set of complete and scientific electricity selling (distribution) company credit evaluation model is finally formed; the electricity selling (distribution) company can be evaluated scientifically, fairly and objectively through the method, the evaluation result is clear at a glance, and the evaluation method is simple and easy to operate.

The invention relates to the technical field of cosmetic efficacy evaluation, and discloses a method for evaluating the efficacy of cosmetics for relieving or repairing skin inflammation in order to solve the problems that in an existing cosmetic skin inflammation relieving evaluation method, the subjectivity of evaluation index selection and treatment is high, and subjective factor interference is brought to an evaluation result. The method comprises the following steps: taking zebra fish as a test object, setting a normal control group, a model control group and a test group, culturing underthe same condition, photographing under a fluorescence microscope, storing a picture, and counting the number of neutrophils in a skin inflammation part of the zebra fish by adopting image processingsoftware based on a statistical method; and then calculating the inflammation relieving or repairing effect (%). Compared with the prior art, the evaluation index data is selected and analyzed by means of instruments and software, and the evaluation result can be quantified; the zebra fish breeding cost is low, the breeding period is short, the breeding amount is large, and the evaluation methodhas the advantages of being efficient, rapid and low in cost.

The invention discloses a water ecological function zoning based river close-to-nature condition evaluation method, which comprises the steps of (1) selecting a corresponding river on which close-to-nature condition evaluation is performed; (2) selecting reference points; (3) selecting indexes; (4) performing data standardization; (5) determining the weight; (6) determining the scoring standard; and (7) carrying out river close-to-nature condition judgment. The water ecological function zoning based river close-to-nature condition evaluation method adopts a statistical method to determine the index layer weight, is objective, simple and convenient in determination method, not only takes sustainable development and ecological protection into account, but also reduces a result error brought about by expert scoring or technician experience and is consistent with the idea of water environment zoning and grading management in China. According to the invention, the evaluation method is simplified through directly setting the river close-to-nature condition evaluation standard on a target layer, thereby being convenient for an environment manager to establish scoring standard systems for different water bodies quickly, and expanding the application range of the method.

The invention provides a method for evaluating the self-healing property of a cable sheath material. According to the method, a cable sheath material is cut, and the self-healing efficiency of the material is calculated through a tensile test; the evaluation method has characteristics of simpleness, easy performing, easy promotion and high accuracy of the evaluation result, can effectively judge the self-healing ability of the material, and can easily establish the tensile mechanical property evaluation test specification of the self-healing cable sheath material; with the method, the self-healing material can be optimized and improved according to the self-healing cable evaluation result, such that the self-healing property, the mechanical property and the electrical property can mutuallypromoted; and further the service life of the material can be easily prolonged by understanding the self-healing property of the insulating sheath material so as to effectively control the cost and reduce the reduced resource loss.