31results about How to "In line with the actual state" patented technology

The invention discloses method for testing the flame retardant property of asphaltum. In the invention, asphaltum mixture with the powder-binder ratio of asphaltum and filling of 1:0.8-1.2 is prepared to asphaltum sample bands with the length of 80-150 mm, 15 asphaltum sample bands form a group, and oxygen index inspection test is carried out on one group of the asphaltum sample bands. The asphaltum sample bands made by the method provided by the invention for test have simple process, low requirement for production devices and are convenient for research, are in keeping with the practical state of asphaltum when the asphaltum mixture burns during test of the asphaltum oxygen index, and can well incarnate the burning process of pavement asphaltum. The asphaltum oxygen index tested by the method can really and accurately measure and reflect the flame retardant property of the asphaltum, and provides evaluation basis for research and application effect of flame retardant property modifying agents of the asphaltum.

The invention relates to a fingerprint identification method and a system thereof, relates to a fingerprint image enhancement method and discloses an image enhancement method in an automatic fingerprint identification technology. The method is characterized by: firstly, constructing a two-dimensional sine filter which has a consistent with a fingerprint; then, using a two-dimensional Gaussian function to carry out modulation on the two-dimensional sine filter so as to obtain a Gaussian modulation two-dimensional sine filter; and carrying out correction on the Gaussian modulation two-dimensional sine filter, constructing the filter which accords with an actual need of fingerprint image processing; using a frequency parameter and a direction parameter of each fingerprint image area to construct an appropriate enhancement template of the Gaussian modulation two-dimensional sine filter; finally carrying out convolution operation on the corresponding Gaussian modulation two-dimensional sine filter template and the corresponding fingerprint image area, carrying out enhancement processing on the fingerprint image, and carrying out normalization processing on an enhancement result so as to obtain the final enhancement fingerprint image.

The invention discloses a permeability evaluation method of a permeable asphalt pavement based on fluid-solid coupling analysis. The method comprises the steps of determining material parameters and hydrologic parameters of structural layers of the pavement through a laboratory test, establishing unsaturated seepage models of the structural layers, establishing a numerical model of a permeable asphalt pavement system, simulating an initial moisture field in the pavement system, analyzing a rainfall infiltration process based on a saturated-unsaturated fluid-solid coupling theory, simulating adynamic variation of the moisture field under a rainfall condition, and evaluating permeability of the permeable asphalt pavement. The method comprehensively considers the influence of the initial moisture field caused by underground water and subgrade soil types in a pavement scope on the internal permeability of the pavement, and relatively accurately simulates mutual coupling and influence of the rainfall infiltration process and an underground water level fluctuation; the laboratory test and numerical simulation are combined to achieve transient analysis of the internal rainfall infiltration process of the permeable asphalt pavement system; and the method can more visually evaluate the permeability of a road structure and is practical, feasible and efficient.

The invention relates to an asphalt mixture test fixture and a using method thereof, and belongs to the field of asphalt concrete tests. The asphalt mixture test fixture consists of a frame, a cushion block and a force applying airbag or a solid force-measuring device; and the assembled frame can support a testpiece during force application. The implementing key points of the fixture are that: the force applying airbag or the solid force-measuring device is used for measuring a force applying value, and pressure applied to the testpiece is kept stable through nuts on a pressing plate; and moreover, force can be intermittently applied to the testpiece through pressurization and decompression of the force applying airbag. The asphalt mixture test fixture can constantly or intermittently apply force to an asphalt mixture testpiece, so that the asphalt mixture testpiece accords with an actual state in the testing process; and the asphalt mixture test fixture is small in volume and convenient to use.

The invention discloses a method for determining a coaxial configuration micro-discharging threshold value. The method comprises the following steps of: determining an electronic movement locus and an electronic movement speed in a coaxial structure; converting probability of an emergence speed satisfying Maxwellian distribution into a joint probability density function of transit time; respectively carrying out maximum value and monotonicity processing to four classes of probability density functions to obtain a processed joint probability density function; taking an electron collision kinetic energy as an incidence electron energy of a secondary electron emission characteristic of a material to obtain a secondary electron multiplication function generated during electron collision under the transit time; constructing a steady-state equation which satisfies the electron number during micro discharging; judging whether a voltage generates micro discharging by solving an effective secondary electron multiplication rate in the steady-state equation; and gradually calculating an effective multiplication rate of a next voltage with a bisection method, wherein a corresponding voltage is a micro-discharging threshold value when the effective multiplication rate is 1. According to the method disclosed by the invention, an accurate micro-discharging threshold value can be obtained, and meanwhile, the threshold value can be quickly obtained.

The invention discloses a state notification method and a state notification device. The state notification method comprises the steps of: acquiring current state information of a user of a terminal; and notifying a preset contact of the user of the current state information. According to the technical scheme, the current state information of the user is notified to the preset contact when the user is inconvenient to answer an incoming call or reply a short message, so that the preset contact can learn about the reason why the user is not answering the call or replying the short message, or the preset contact can learn about the state of the user before contacting the user, thereby the preset contact can select whether to contact the user according to the current state of the user. Therefore, the communication between users is smoother, the communication efficiency is increased and the user experience is better.

The invention provides an online monitoring device, monitoring method and system for lubricating oil of a gearbox of a wind turbine generator. The device comprises a lubricating oil monitoring bypass, an online monitoring device, a data transmission and control module, a cloud server and a client. The lubricating oil monitoring bypass is connected to a main oil way of a gearbox outlet in parallel, lubricating oil is led out from the main oil way, when the lubricating oil flows through the online monitoring device, real-time data of various parameters of oil liquid are comprehensively collected and sent to the data transmission and control module, then the data are uploaded to the cloud server through wireless communication setting on the module, after the client obtains the monitoring data, the monitoring data are comprehensively processed and analyzed through a system software program according to compensation parameters obtained through an early-stage experiment, effective monitoring of the quality of the lubricating oil is achieved, a certain basis is provided for follow-up control measures and fault diagnosis, and basic maintenance, regulation and control operation is achieved through the data transmission and control module. According to the device, the method and the system, the requirement of off-line detection is met, and the defect of off-line detection is overcome.

The invention discloses a composite foundation fill slope stability coefficient calculation method based on a transfer coefficient method, and the method comprises the following steps: 1, for piles arranged in a square shape, obtaining a pile replacement rate according to a pile distance s and a pile body diameter d, and dividing a slope sliding body into a plurality of strip blocks, wherein the divided strip blocks comprise strip blocks containing piles and strip blocks without piles; 2, calculating the cross section area Ai of the strip block without the pile and the cross section area of the strip block with the pile; 3, calculating the soil strip gravity of the strip blocks without the piles and the soil strip gravity of the strip blocks with the piles; 4, calculating the stability coefficient of the composite foundation fill slope based on the calculation results of the steps 2 and 3; the technical problems that in the prior art, in composite foundation slope stability evaluation,piles and residual soil in a reinforcing area are regarded as a composite material, the actual engineering situation is not met, and the calculated composite foundation fill slope stability coefficient is large in error are solved.

The invention discloses a method for improving the safety performance of a space truss structure, belongs to the technical field of building structure reinforcement, and solves the problems that in the prior art, whether a truss has enough safety or not cannot be determined, and the distribution condition of the stress state of a rod piece cannot be visually displayed. The method comprises the following steps: S1, acquiring parameters of a space truss structure; s2, inputting the parameters obtained in the step S1; s3, enabling the processor to read the data in the data memory to establish a net rack finite element model; s4, applying design load and constraint to the finite element model through a data recorder; s5, sending the finite element model packaged by the processor to a display terminal through a data sender, and displaying the stress condition of the rod piece graphically; and S6, reinforcing the rod piece according to the stress condition of the rod piece. The method is suitable for improving the safety performance of the space truss structure.

The invention discloses a self-adaptive control method for an automobile active suspension, and belongs to the technical field of automobile engineering. The invention discloses a self-adaptive control method for an automobile active suspension. The self-adaptive control method comprises the following steps: S1, designing a nonlinear dynamic model of a system; S2, designing an unknown time-varying function to represent an uncertain part of the system; S3, designing a Fourier series-based function approximation method to estimate an unknown time-varying system function; and S4, designing a self-adaptive sliding mode control system. According to the method, the uncertain part of the system is estimated on line, the control force is calculated on line through the self-adaptive sliding mode controller, the influence of load and system parameter time varying can be better overcome, and compared with traditional PID control, the vibration reduction control performance of the system is greatly improved.

The invention relates to a preparation method and application of an asphalt test piece. The preparation method for the asphalt test piece comprises the following steps: fusing asphalt and uniformly mixing the fused asphalt and a filling material so as to obtain an asphalt mixture, wherein a weight ratio of the asphalt to the filling material is 1: 1.5 to 1: 2.4; preparing an asphalt mixture bar-shaped material with a length of 80 to 200 mm in a die from the asphalt mixture; and winding a 60-mesh to 300-mesh metal net on the external surface of the asphalt mixture bar-shaped material so as to obtain the asphalt test piece. The invention provides a testing method which better accords with an actual state of the asphalt during combustion of the asphalt mixture and better embodies flame retardation performance of albanite during combustion of pavement asphalt, and the asphalt test piece is applicable to testing of flame retardation performance of any road asphalt and does not pollute analytical equipment and a work environment.

The invention discloses a power-saving control method based on user behaviors, a mobile terminal and a storage medium. The power-saving control method based on user behaviors comprises the steps: determining a current state type of a user through the analysis of the real-time behavior data of the user, and enabling the determined state type to be more consistent with the actual state of the user;and using a preset user portrait model for predicting an operation to be performed by the user in a big data mode, so that a prediction result is more accurate and closer to the actual demand of the user. Background applications to be cleared at present are determined by combining the real-time state type and the predicted application use habit, so that the mobile terminal can accurately select the background applications which actually need to be cleared in various different use scenes, the power consumption of a mobile phone is reduced, and the use duration of the mobile phone is prolonged.

The invention provides a method for generating periodic time series data based on a self-encoder. Based on the encoder module, the periodic loop module and the decoder module, the periodic time seriesdata are structured, and the multi-dimensional periodic time series are reduced in dimension by the encoder, so that the data of different dimensions are decorrelated, and the dimension explosion isavoided when the periodic loop is constructed. The whole time series is reconstructed into a ring structure with one cycle as the unit, and the data of each dimension at each time point on the ring isrepresented by an independent Gaussian distribution. Gaussian distribution sample and decoders are use to generate data with strict timing relationships.

The invention particularly relates to a coke high-temperature performance detection device and a detection method, and belongs to the technical field of coke thermal performance detection. Two cavities are arranged on a conventional coke reactivity testing device, and two reactions of ore reduction and coke solution loss can be completed at the same time. And the loading amount of the ore is obtained through calculation according to the actual load condition of the blast furnace. The reaction gas after ore reduction is directly introduced into the coke reaction tube to participate in the reaction, so that the reaction atmosphere of coke in the blast furnace can be more accurately simulated, and the obtained coke reaction performance index better conforms to the actual state in the blast furnace.

The invention discloses a steel-bonded reinforcement method for a grid structure and belongs to the technical field of building structure reinforcement. The steel-bonded reinforcement method for the grid structure solves the technical problems that in the prior art, open fire is needed for welding, sleeve welding type reinforcement enables a steel tube to generate obvious structural deformation, and a reinforcing portion and a raw rod piece cannot form cooperative work of an integrated structure. The steel-bonded reinforcement method for the grid structure comprises the following steps of S1,determining a to-be-reinforced rod piece in a grid frame as a raw rod piece; S2, obtaining the diameter d, the deflection-span ratio, the cracking degree and the rusting condition of the raw rod piece; S3, determining the value of the damage degree S of the to-be-reinforced rod piece according to the deflection-span ratio, the cracking degree and the rusting condition of the raw rod piece; S4, obtaining the stress ratio of the raw rod piece; S5, obtaining the length and thickness of an outer bonded steel tube according to the value of the damage degree S and the stress ratio of the rod piece;S6, symmetrically bonding the outer bonded steel tube meeting the requirements of the step S5 at the center of the raw rod piece. The steel-bonded reinforcement method for the grid structure is suitable for reinforcing the grid rod piece with a bend deformation defect.

The invention provides a prediction system of comfort of a sleeping product. The system comprises a sleeping product thermal insulation database, a model establishing module, a model verification module, a parameterization research module, a prediction module and a recommendation module. The establishment of the system includes following steps: S1, establishing a sleeping human body comfort prediction model; S2, determining a boundary condition and substituting the boundary condition into the established model, and modifying output data until an error between experiment data and the output data is within 7%; S3, performing parameterization research; S4, obtaining a prediction system of the comfort of the sleeping product based on a chart line relation between parameters of the sleeping product, human body factors and environmental factors obtained in S3; and S5, recommending the sleeping product used in a specific environment based on the prediction system of the comfort of the sleeping product obtained in S4 to ensure the sleeping comfort of the human body. According to the prediction system of the comfort of the sleeping product, the comfort of the sleeping product can be more scientifically and accurately predicted.

The invention provides a memory polling method, a memory storage device and a memory control circuit unit. The memory polling method comprises the following steps: detecting a plurality of busy times corresponding to a plurality of entity units when a plurality of first instructions are executed; counting a plurality of busy times corresponding to the plurality of entity units to generate a counting statistical value, and determining delay time according to the counting statistical value; and sending a state request to the rewritable nonvolatile memory module after the delay time.