35 results about "Penetration index" patented technology

The invention discloses a control system and method of a dedicated lane for an autonomous vehicle. The system comprises a vehicle-mounted system, a roadside system, a cloud lane management center, anda road information prompting system. The vehicle-mounted system includes a vehicle-mounted information processing center, an information acquisition device, a vehicle-mounted communication module, and a human-computer interaction terminal arranged on a manually driving vehicle, and an automatic driving terminal arranged on the autonomous vehicle. The roadside system includes a roadside information processing center, a video monitoring module, a roadside unit and a second 5G communication module. The road information prompt system includes an information issuing center, a variable informationprompt board, a broadcast and a third 5G communication module. The cloud lane management center includes a data processing center, a traffic information database and a fourth 5G communication module.Different traffic congestion impact factors are assigned for a manually driving vehicle and an autonomous vehicle; and whether to start an autonomous vehicle dedicated lane is decided based on a traffic congestion index and an autonomous vehicle penetration index, so that the traffic efficiency is improved.

The invention provides a method for evaluating performances of normal-temperature modified road asphalt, for solving the following problems: a method for evaluating performances of normal-temperature modified asphalt does not exist in existing national standard and industrial standard; the quality of the normal-temperature modified asphalt is difficult to control; and the application area of the normal-temperature modified asphalt is difficult to determine. The method disclosed by the invention comprises the following steps: (1), respectively measuring the rotary viscosity at 60 DEG C, the penetration, the penetration index, the adhesion with coarse aggregates and the flashing point of the normal-temperature modified road asphalt; and (2), according to test results of the performances, determining application temperature areas of the normal-temperature modified road asphalt including a cold area, a warm area and a hot area. According to the invention, aiming at material composition characteristics and construction forming conditions of the normal-temperature modified road asphalt, the normal-temperature modified road asphalt is comprehensively evaluated in five aspects including workable performance, temperature sensibility, water-resistant peeling and use safety; the application temperature areas of the normal-temperature modified road asphalt are definite; and effective quality assurance is provided for engineering application of the normal-temperature modified road asphalt.

The present invention provides a railway surface joint-filling material with high-performance and its production process. It is made up by using modified asphalt, aromatic hydrocarbon oil, styrene-butadiene rubber powder and plasticizer according weight portion ratio, and its production process includes the following steps: heating modified asphalt to 130-150 deg.C, adding 4-10 weght portions of aromatic hydrocarbon oil, stirring them by using stirrer, at the same time of stirring adding 15-25 weight portios of rubber powder and 3-8 weight portions of plasticizer, stirring them at 130 deg.C. The low-temp. ductility of said invented material (5 deg.C) is greater than 60 cm., its penetration index (PI) is 4.0-7.0, equivalent softening point can be up to 60-85 deg.C equivalent brittle point can be up to -60- -100 deg.C, elastic recovery can be up to 98-100% and normal service life can be up to above 5 years.

The invention provides a modified asphalt composition and a preparation method thereof. The modified asphalt composition comprises, by weight, 87.5% to 98.9% of base asphalt, 1% to 10% of a modifier and 0.1% to 2.5% of a gelatinizing agent (a structure improver). The preparation method comprises the following steps: uniformly dispersing the modifier into the base asphalt at a temperature of 150 to 260 DEG C by using equipment like an ordinary agitator, a high speed shearing machine or a colloid mill to prepare the modified asphalt composition; and adding the gelatinizing agent to allow a sol-gel type colloid structure of asphalt to be converted into a gel type colloid structure and to allow a stable colloid structure of asphalt to be formed. According to the invention, the preparation method for the modified asphalt composition is simple; and the prepared modified asphalt composition has a high softening point, high viscosity, a high penetration index, excellent high and low temperature performance, excellent ageing resistance, small temperature sensitivity and the like, can reduce occurrence of damages like tracks and upheaval on a pavement and prolong a maintenance period of the pavement and is applicable to construction of high-grade highways.

The invention discloses a crude oil online blending optimization method facing to asphaltene control. The method is applied to the crude oil processing enterprises and comprises the following steps: under the condition of satisfying nonlinear constraint of the asphalt penetration index, selecting an optimal object to perform the optimization and blending, and computing to obtain the optimal blending formula. The crude oil online blending optimization method has the benefits of being capable of avoiding damage to the atmospheric and vacuum and subsequent processing device due to the crude oil property content change while guaranteeing that the asphalt temperature sensitivity index meets the quality requirement, and improving the production efficiency and economic benefit.

The invention discloses a heterogeneous correction method for compensating low-grey scale X-ray image signals, comprising steps of, after training and obtaining reference data-training reference value compensating low-grey scale image signals based on analyzing draw bead generating reasons, firstly, carrying out normal heterogeneous correction to a collected article passing a channel type line scanning X-ray safety inspection device so as to primary image data; secondly, subtracting a training reference value of a scintillator at a corresponding position from a grey scale value of each scintillator in the primary image data to obtain a corrected image grey scale value; lastly, strengthening signals of an image of which the grey scale value is corrected by the heterogeneous stretching formula to make the corrected and strengthened image displayed more clearly. The inventive heterogeneous correction method for compensating low-grey scale X-ray image signals is characterized in that draw bead problem of low-grey scale images is solved, and penetration indexes and image quality of a X-ray safety inspection device are guaranteed.

The invention discloses a method of evaluating relative compaction of calcium soil on the basis of a dynamic penetration index calibration system. The method include: A) drying a calcium soil sample and determining [rho]<d, max>, [rho]<d, min>, d<50> and C; B) calculating the [rho]di of each type of the calcium soil sample under every Dri; C) testing the penetrating hammer striking time of eachtype of the calcium soil sample and the accumulated penetrating depth of a probe; D) respectively drawing hammer striking time-accumulated penetrating depth scatter diagrams, and fitting the slope p<index, i> of each straight line; E) acquiring [p<index, i>SQRT(d<50>C), Dri], and drawing a scatter diagram; F) performing fitting to obtain an expression formula of p<index, i>SQRT(d<50>C) andDri; G) acquiring an expression formula of relationship between 300[SQRT(d<50>C)] / N10 and the Dri; H) expressing the physical quantities by means of absolute coefficient fundamental dimensions; I)according to the dimensions of the physical quantities, forming a dimension matrix and calculating [pi]1 and [pi]2; J) determining the relationship between dynamic penetration test physical quantitiesand light dynamic penetration test physical quantities; K) deriving a penetration index of the dynamic penetration test; and L) substituting the index into the expression formula, thus obtaining a new expression formula.

A dispensing container for wet wipes includes a pop-up style dispensing means formed by a rigid port which surrounds a flexible, rubber-like material or sheet having one or more slits through which the wet wipes are dispensed. The configuration of the slits, in combination with the flexibility of the rubber-like material, enables the user to insert at least one finger through the slit to thread a wipe through the slit. The dispensing means has a Penetration Index of greater than 600 grams.

A dispensing container for wet wipes includes a pop-up style dispensing means formed by a rigid port which surrounds a flexible, rubber-like material or sheet having one or more slits through which the wet wipes are dispensed. The configuration of the slits, in combination with the flexibility of the rubber-like material, enables the user to insert at least one finger through the slit to thread a wipe through the slit. The dispensing means has a Penetration Index of greater than 600 grams.

The invention relates to a method for evaluating crack resistance of asphalt mixtures based on uniaxial penetration experiment. The method comprises the following steps: performing the uniaxial penetration experiment on regeneration asphalt mixture test pieces, collecting test data of pressure and displacement, drawing a curve matching with the test data, and calculating a penetration index DI; and according to the penetration index, evaluating the crack resistance of regeneration asphalt mixtures, wherein the evaluation criterion includes that between 0-10, the larger the DI is, the better the crack resistance of the regeneration asphalt mixtures is, and the smaller the DI is, the worse the crack resistance of the regeneration asphalt mixtures is. In the practical evaluation course, the penetration index is calculated directly by using the curve of a uniaxial penetration experiment model to evaluate the crack resistance of the regeneration asphalt mixtures. Test pieces used in the evaluation method provided by the invention are easy to prepare, the test course is simple, the testing result is stable, the variability is small, and the method is easy for test operators to control and implement.

The utility model discloses a high-precision asphalt penetration tester. The tester comprises a rack, a measuring rod and probe module, an up-and-down walking module, a sample placing module and a control module, wherein the measuring rod and probe module comprises a connecting seat, a measuring rod and probe bracket, a measuring rod and a probe; the measuring rod is of a columnar structure and comprises a balance weight part, a main body part and a clamping part from top to bottom. An air bearing sleeve structure is fixedly arranged on the measuring rod probe support, a measuring rod hole isformed in the center of the air bearing sleeve structure, and an air cylinder cavity is formed in the lower middle position of the bearing sleeve structure. A load sensor is arranged at the lower endof the measuring rod; and the sample placing module is provided with an electronic refrigeration sheet. According to the tester, an air bearing structure and a pneumatic clamping structure are adoptedto reduce contact friction, a force measuring sensor is adopted to realize automatic needle alignment, a laser displacement sensor is adopted to realize non-contact measurement, and an electronic refrigeration sheet is adopted to realize accurate constant temperature, so that the asphalt penetration index performance detection precision is high, the operation is convenient, and the automation degree is high.

The invention discloses a valley debris flow risk dividing method and application thereof, and belongs to the technical field of debris flow control projects. The method comprises the following steps that the specific surface area value ai of secondary clay minerals of minerals and the content bi of mineral elements in original minerals are measured so as to calculate the total specific surface area value n of lithological secondary clay minerals and the clay index N; the rock solidness coefficient F is measured so as to calculate the penetration index K; the geologic factor G is calculated; the drainage area A0 is measured so as to determine the whole-drainage area A; the whole-drainage area percentage S and the gully bed longitudinal slope J are measured so as to calculate the terrain factor T; and the discrimination factor P is calculated and the risk levels of debris flow channels are divided according to the P. According to the method, the terrain and geological effect factors of the valley debris flow are comprehensively considered, an easy-happening calculation model of the valley debris flow is built, the risk areas of landslides are divided accurately in a quantitative mode, and the method has the characteristics that the risk areas of debris flow are divided accurately, the disaster prevention applicability is high, and the disaster prevention effect is good.

The invention belongs to the technical field of medicines, and in particular discloses an application of apocynin nitrone in preparing a medicine for preventing and treating asthma. According to the invention, an OVA (ovalbumin) induced mouse asthma animal model, effects of the apocynin nitrone on resisting inflammation, resisting oxidation and relaxing trachea are researched by virtue of such research methods as an integral animal experiment, an isolated trachea experiment and the like. Based upon test results, the apocynin nitrone can obviously improve lung tissue inflammation of an asthma model mouse and subsequent lung tissue injury, inhibit the generation of inflammatory cell factors and reduce a lung wet / dry weight ratio and a lung penetration index. The apocynin nitrone can improve levels of superoxide dismutase and glutathione in lung tissue homogenate, reduce level of a lipid peroxidation product, namely malonaldehyde, and improve a lung oxidative stress state. The apocynin nitrone can reduce smooth muscle tension of the isolated trachea and improve tracheospasm. The apocynin nitrone provided by the invention, as an active ingredient, can be used for preparing a pharmaceutical composition for preventing and treating the asthma in the combination with a pharmaceutically acceptable carrier or excipient.

The invention relates to an environment-friendly polyurethane foam thermal insulation material and a preparation method thereof. The environment-friendly polyurethane foam thermal insulation material is characterized by being composed of combined polyether, a foaming agent, a catalyst, a foam stabilizer, water, and polyaryl polymethylene isocyanate (PAPI), is a novel thermal insulation and anticorrosion polymer synthetic material, and has the advantages of low water vapor penetration index (WVPI) and good watertight property. The provided thermal insulation material is a low density polymer foamed plastic with a closed pore structure; has the thermal insulation and waterproof functions, has a strong adhesion force on metals, wood, cement, glass, and the like; and can be widely used in industries such as construction industry, refrigeration equipment industry, furniture industry, and the like.

The invention is applicable to the technical field of data analysis, and provides a park business chart generating method and device and an apparatus, the method comprising: obtaining basic information input by a user for reflecting the park and the service type selected by the user, and obtaining service indexes input by the user, index dimensions and penetration indexes of the index dimensions;obtaining business data corresponding to the basic information, the indicator dimension and the penetration index of the indicator dimension based on the basic information, the indicator dimension andthe penetration index of the indicator dimension; obtaining indicator data by using an indicator model corresponding to the business indicator based on the indicator dimension, a penetration index ofthe indicator dimension and the business data; Based on the indicator data, generating a business chart, and feeding the business chart back to the user. The above scheme enables users to view the business situation of different parks conveniently.

The invention provides a preparation method of an SBS glue solution, star-shaped SBS prepared therefrom and application. The preparation method includes the steps of: 1) mixing styrene, divinyl benzene, a non-polar solvent and a polar additive, and adding an initiator to carry out polymerization reaction; 2) adding butadiene into the system obtained after the polymerization reaction in step 1), and carrying out reaction; 3) adding styrene into the system reacted in step 2), and carrying out reaction; and 4) adding Lewis base into the system reacted in step 3), carrying out reaction, and then adding an anti-aging agent to obtain the SBS glue solution. The SBS glue solution obtained by the preparation method disclosed by the invention contains star-shaped SBS, the star-shaped SBS has high tensile strength and elongation at break, and when applied to road modified asphalt, the star-shaped SBS can effectively improve the ductility of asphalt, also can improve the impact resistance and cracking resistance of the asphalt, also can further reduce the penetration index, and improve the softening point, abrasion resistance and rutting resistance of the asphalt.

The invention provides a preparation method of a buton rock asphalt-modified asphalt mixture. The preparation method comprises the following steps: using buton rock asphalt as a modifying agent, thenadding gravel into buton rock asphalt-modified asphalt for blending and shearing, then adding mineral powder and graphite oxide, and blending with the raw material so as to uniformly disperse the mineral powder and the graphite oxide into the rock asphalt-modified asphalt to obtain the buton rock asphalt-modified asphalt mixture. After matrix asphalt is modified by the buton rock asphalt, the softening point of the asphalt is constantly increased, the penetration is constantly reduced, and the high-temperature performance is improved; meanwhile, the penetration index PI of the modified asphaltis increased, and the temperature sensitivity is improved; the residual penetration ratio after aging is constantly increased, which indicates that the durability of the modified asphalt is improved.In the preparation method, the gravel is directly added into the buton rock asphalt-modified asphalt, and then sand powder and the graphite oxide are added and are uniformly fused with the modified asphalt, so that compaction of the mixture is facilitated, and the overall performance of the mixture is improved; meanwhile, the preparation method is simple, the used raw materials are inexpensive, and the preparation method is suitable for industrial production.

The invention discloses a method of evaluating relative compaction of calcium soil on the basis of a light dynamic penetration index. The method includes: A) drying a site-collected calcium soil sample and performing a geo-technical test to determine the [rho]<d, max>, [rho]<d, min>, d<50> and C of each calcium soil sample; B) setting Dri and calculating the [rho]di of each calcium soil sampleunder every Dri; C) calculating the penetrating hammer striking time of each calcium soil sample and the accumulated penetrating depth of a probe after each hammer striking time under different [rho]di; D) respectively drawing hammer striking time-accumulated penetrating depth scatter diagrams of each calcium soil sample, and fitting data points in each group into a straight line in every diagram,wherein the slope of each straight line is the p<index, i> of the corresponding calcium soil sample under the Dri; E) acquiring the [p<index, i>SQRT(d<50>C), Dri] data points and drawing scatter diagrams; F) performing fitting to obtain an expression formula of p<index, i>SQRT(d<50>C) and Dri; G) acquiring an expression formula of relationship between 300[SQRT(d<50>C)] / N10 and the Dri. By means of the method, the predicted relative compaction of a calcium soil subgrade is coincided with practical situations better.

The invention relates to a method for predicting the service life of hydraulic asphalt concrete. The purpose of the invention is to provide a method for predicting the service life of the hydraulic asphalt concrete, so as to solve a problem of difficult prediction of the service life of the hydraulic asphalt concrete. A technical scheme of the invention is that the method comprises the following steps: collecting intensity of ultraviolet radiation of a position at which the hydraulic asphalt concrete is located at different times; calculating asphalt penetration in the hydraulic asphalt concrete at the time t by an ageing formula, wherein the ageing formula is as shown in the description; A refers to a first constant, C refers to a speed constant, alpha refers to a second constant, U refers to the intensity of the ultraviolet radiation, and P0 refers to an initial performance index of the asphalt (which is a penetration index herein); calculating based on the ageing formula to obtain a curve of change of the asphalt penetration with time; and indicating that the service life of the hydraulic asphalt concrete is t1 when the change of the asphalt penetration with time becomes steady after time t1. The method provided by the invention is suitable for prediction of the asphalt concrete ageing degree and the service life of a hydraulic asphalt concrete anti-seepage layer, a sealing layer and the like.

A method for evaluating comprehensive performance of tourmaline modified asphalt and optimizing proportion of tourmaline modified asphalt comprises the steps of selecting 16 technical indexes, such asthe penetration index, penetration, equivalent softening point, ductility (10 DEG C), equivalent brittle point, penetration aging ratio, softening point increment, ductility aging ratio, adhesion grade, emission reduction rate, oxygen index, NOx purification rate, HC purification rate, CO2 purification rate, CO removal rate, the material cost, etc., as the evaluation indexes, combining multi-factor test with efficacy coefficient, systematically analyzing the basic properties, environmental efficacy, economic benefit and comprehensive performance of low-carbon modified asphalt, so that the method is strong in practical operability and reliability, avoids the one-sided evaluation, and provides a new idea for the comprehensive performance evaluation of tourmaline modified asphalt.

The invention discloses a rapid detection method of an asphalt penetration index for steel bridge deck pavement. The method comprises the following steps: S1, collecting a plurality of asphalt samples, and respectively preparing asphalt analysis samples; S2, sampling the asphalt analysis samples by adopting an attenuated total reflection infrared spectrum acquisition mode to obtain infrared spectrums; S3, screening the corresponding optimal wavelength as a sample according to the infrared characteristic absorption peaks of the infrared spectrums; S4, establishing a quantitative data model according to the sample, importing calibration set spectral data into the data model for calculation, and generating an original model view; S5, judging whether an abnormal value exists or not, if so, removing the abnormal value, recalculating a new data model, generating a new model view, and entering step S6; if not, taking the original model view as a new model view and entering the step S6; and S6, acquiring the infrared spectrum of asphalt to be detected, importing the infrared spectrum into the new model view, and calculating the penetration of the asphalt to be detected. The infrared spectrum and chemometrics combined analysis method can more quickly and accurately detect the penetration degree of the asphalt.

The invention relates to the technical field of tailing damming, and particularly relates to an upstream type high-strength reinforced wide-top damming method and structure for fine-particle tailings.According to the upstream type high-strength reinforced wide-top damming method and structure for the fine-particle tailings, strength reinforcement is conducted on the beach face of a current accumulation dam through riprap and silt squeezing, and the foundation strength of damming is guaranteed; tailing grading is conducted through a cyclone, direct damming is conducted through the underflow tailings of the cyclone, and high-strength geosynthetics are laid in the damming tailings at intervals; and the strength of a dam body is improved through the friction and clamping effects between the geosynthetics and the damming tailings, the standard penetration index of the tailings on the surface layer is greatly increased, the physical and mechanical properties of the tailings in the dam bodyare improved, and the stability and safety coefficient of the dam body is increased. By implementing the method, the stability of the tailing dam body under various operating conditions can be guaranteed, the construction difficulty is lowered, and investment is reduced.

The invention discloses a method for estimating the tunneling rock mass strength of a TBM and performing graded early warning, and belongs to the technical field of TBM tunnel construction.The method comprises the following steps that a general relation model of the TBM tunneling rock mass equivalent strength Rec and the penetration index FPI is established; the model is applied to TBM tunneling construction, according to tunneling parameters collected by a TBM in real time, the integrity coefficient Kv of the TBM in a tunneling rock mass is estimated in real time, and according to the given grading standard and early warning value, grading and early warning are conducted on the TBM in the tunneling rock mass. According to TBM tunneling parameter changes, the equivalent strength and the integrity coefficient of the TBM in the tunneling rock mass are estimated online, and the tunnability and the crushing degree of the TBM in the tunneling rock mass are analyzed in real time; compared with a traditional TBM construction surrounding rock grading method, the method has the advantages that adopted grading index parameters are simple and easy to obtain online, and the method is of great importance to timely judgment of surrounding rock tunneling performance, early warning of the risk that the TBM is stuck due to rock collapse and preparation of proper supporting measures in advance.

The invention discloses a comprehensive performance evaluation and ratio optimization method of tourmaline modified asphalt, which selects the penetration index, penetration, equivalent softening point, ductility (10°C), equivalent brittle point, and penetration aging ratio , softening point increment, ductility aging ratio, adhesion grade, emission reduction rate, oxygen index, NO X Purification rate, HC purification rate, CO 2 Purification rate, CO purification rate, material cost and other 16 technical indicators are used as evaluation indicators, and the multi-factor test is combined with the efficacy coefficient to systematically analyze the basic performance, environmental efficacy, economic benefits and comprehensive performance of low-carbon modified asphalt materials, and the actual operability , strong reliability, avoid one-sided evaluation, and provide a new idea for the comprehensive performance evaluation of tourmaline-modified asphalt materials.

The invention belongs to the technical field of blast furnace ironmaking, and relates to a method for quantitatively evaluating the activity index of a blast furnace hearth, comprising: using the activity of the tuyere swirl area to characterize the blast furnace hearth activity index; Blast kinetic energy E, depth of tuyere swirl area D R , Width of tuyere swirl area W R ; Secondly, according to the proportion of the area of ​​the tuyere swivel area and the ratio of the width of the tuyere swirl area to the circumference of the blast furnace hearth, the permeability index K of the tuyere swirl area is calculated respectively 1 and hearth cross-section air permeability index K 2 ;Comprehensive construction of blast furnace hearth activity index HAI, and HAI=K 1 *K 2 , to achieve quantitative characterization of hearth activity. This method overcomes the distortion and lag of traditional hearth activity calculation results, can accurately, reasonably and effectively reflect the activity level and state of the hearth area, and is an important judgment basis and technical basis for guiding the adjustment of the lower part of the blast furnace.

The invention discloses a heterogeneous correction method for compensating low-grey scale X-ray image signals, comprising steps of, after training and obtaining reference data-training reference value compensating low-grey scale image signals based on analyzing draw bead generating reasons, firstly, carrying out normal heterogeneous correction to a collected article passing a channel type line scanning X-ray safety inspection device so as to primary image data; secondly, subtracting a training reference value of a scintillator at a corresponding position from a grey scale value of each scintillator in the primary image data to obtain a corrected image grey scale value; lastly, strengthening signals of an image of which the grey scale value is corrected by the heterogeneous stretching formula to make the corrected and strengthened image displayed more clearly. The inventive heterogeneous correction method for compensating low-grey scale X-ray image signals is characterized in that drawbead problem of low-grey scale images is solved, and penetration indexes and image quality of a X-ray safety inspection device are guaranteed.