191results about How to "Strong reference" patented technology

The invention discloses an evaluation method for small and micro enterprise operation projects, which includes determining indicators affecting the feasibility factors of the project according to the contents of the small and micro enterprises to be evaluated; determining the weight of each indicator in the Internet financial environment; summarizing The weight of each indicator and the detailed rules for scoring establish an initial weighted scoring model; modify the initial weighted model to obtain an optimized weighted scoring model; score the items to be evaluated according to the optimized weighted scoring model; Scoring, determining the funding policy of the project and other steps. Its remarkable effect is: the weighted scoring model is adopted, and each indicator is given a weight, which fully considers the impact of the current Internet financial environment on the indicators and weights of the development factors of small and micro enterprises. Compared with the non-weighted evaluation model, the reliability is more reliable. High, the obtained score has a strong reference for the project managers of makerspaces.

The invention discloses a quantitative analysis method of the influence of a joint centralization error on locating precision of a multi-freedom-degree mechanical arm tail end. The quantitative analysis method comprises the steps that (1) modeling is carried out on the joint pose transformation of a mechanical arm, and pose transformation matrixes of connecting rods are built through a D-H representation method; (2 ) modeling is carried out on the joint centralization error of the mechanical arm; (3) a centralization error model is guided in, the initial position poses of joints are determined, and the initial positions of the joints are determined; (4) analog simulation of the influence of the joint error on the motion position of the tail end is analyzed through a Monte Carlo method; (5) the position distribution diagram of end effectors is drawn according to the step (4), statistics is carried out on distribution characteristics, and the influence is evaluated. The method has the advantages of being simple in principle, easy and convenient to operate, high in precision and the like.

The invention discloses a preparation method of a clearance-adjusting eccentric shaft for a hot-rolled steel section flying shear cutting edge, which comprises steps as follows: an eccentric shaft, a matched adjusting disk, a connecting rod, connecting brackets and an end cover are processed, and the adjusting disk, the left connecting bracket and the front end of the eccentric shaft are connected together through bolt components; the second section of the eccentric shaft and the hole of the left connecting bracket form a hole fit, and the hole clearance ensures the eccentric shaft to normally rotate in the hole; the third section of the eccentric shaft is supported by two bearings in the stepped hole of the connecting rod; the end cover, the right connecting bracket and the back end of the eccentric shaft are connected together through bolt components; and an axially fixed spacer ring is respectively installed in the clearances between the left and right connecting brackets and the connecting rod, so that the two bearings are axially fixed, thereby implementing the preparation of the clearance-adjusting eccentric shaft for a hot-rolled steel section flying shear cutting edge. The invention is easy to implement, has the advantages of wide application range and the like, and can be used as a useful design complement for design of the flying shear crank-link mechanism.

The invention provides a determination method for a conglomerate oil reservoir polymer-flooding relative permeability curve. The determination method comprises the following steps that 1, the total water cut fw of a polymer-flooding oil well is calculated; 2, a first-level linear fitting relational expression y1=ax+b is established, and fitting parameters a and b are obtained; 3, the polymer-flooding oil-water relative permeability ratios Kro/Krw under different polymer-flooding water saturations Sw are calculated according to a relational expression Kro/Krw=me<-nSw> between the relative permeability and the polymer-flooding water saturations; 4, a second-level linear fitting relational expression y2=k1x1+k2x2+k3 is established, and fitting parameters k1, k2 and k3 are obtained; 5, the oil-water two-phase relative permeability Kro and Krw under the different polymer-flooding water saturations Sw are calculated; 6, a polymer-flooding oil-water two-phase relative permeability curve is drawn. According to the determination method for the conglomerate oil reservoir polymer-flooding relative permeability curve, the more precise conglomerate oil reservoir polymer-flooding relative permeability curve can be quickly obtained, the cost is reduced, the efficiency is high, and the workload is greatly decreased.

The invention provides an evaluation device and method of well cementation flushing efficiency. Designed according to the Reynolds number equality theory, the device comprises a simulated well casing, a heating water tank, a power pump and an electromagnetic flowmeter, wherein the simulated well casing mainly comprises an inner barrel and an outer barrel; the inner barrel comprises an inner barrel body, steel screen meshes with different mesh numbers and an inner barrel end cover; the inner barrel can simulate a stratum under the circumstance that the steel screen meshes are covered with filter paper or the inner barrel is filled with quartz sand; the outer barrel can rotate; guide vanes with different forms are designed to simulate a casing pipe. The method is easy to operate, high in comparability and low in workload, can effectively form a filter cake, simulate and evaluate the characteristics of the flushing efficiency under the circumstance that the casing pipe rotates or a spiral centralizer is used, can evaluate the flushing efficiency of flushing fluid for a first interface and a second interface, can evaluate and optimally select the flushing fluid system and design the dosage of the flushing fluid, and is wide in application.

The invention discloses an oil storage tank area fire explosion risk assessment method based on a fuzzy fault tree, specifically relates to the technical field of risk assessment. The method comprisesthe steps of S1, accident tree analysis: starting from a possible event, analyzing trigger events, direct reasons and indirect reasons causing an accident layer by layer, analyzing mutual logic relationships of the accident reasons, and representing the reasons and the logic relationships by using a logic tree diagram, and the analysis steps are as follows: the oil storage tank area is evaluatedby adopting the accident tree, the analytic hierarchy process and the fuzzy comprehensive evaluation; dangerous factors of an oil storage tank area is identified, an accident tree is constructed, structural importance analysis is carried out, an evaluation set of fuzzy comprehensive evaluation is scientifically selected, fuzzy comprehensive evaluation is carried out, the danger level of the tank area is evaluated, factors influencing the occurrence of accidents are comprehensively considered, the oil storage tank area is accurately evaluated, and the accuracy of risk evaluation is improved.

The invention discloses a hydrate mining well mechanical screen pipe erosion evaluation simulation system and a simulation testing method thereof. The simulation system comprises an underground subsystem, a ground subsystem and a data collection analysis subsystem, and can meet the requirement on full-scale simulation of an actual natural gas hydrate mining well screen pipe working condition; a simulation result can be directly used for evaluating a marine natural gas hydrate mining well screen pipe erosion attack condition; screen pipe erosion and actual hydrate production well working conditions are initiatively combined, and a pressure sensor, a pressure difference sensor, an online laser particle analyzer and a well mouth sand discharge concentration measurer are combined, so that a screen pipe erosion condition is monitored in real time; through a simulation experiment, an erosion attack rule of a screen pipe under a hydrate production condition can be obtained, the erosion resistance adaptability of the screen pipe during a hydrate mining process is evaluated, and a data support is further provided for designing a diversion trench of a protection cover outside the natural gashydrate mining well screen pipe, optimizing a screen pipe type, warning risks for a depressurization sand control scheme, and selecting a stored transformed section.

The invention relates to a statistical downscaling model forecasting factor screening method. The method comprises the steps that 1 a positional relationship graph between a weather station and a gridin a river basin is established; 2 the correlation among measured rainfall of each station, temperature and other predictand and a reanalysis data atmospheric circulation factor is deduced, includingthe correlation with the grid of the weather station and the correlation with surrounding grids, and appropriate factors are selected according to a set correlation coefficient threshold; 3 the change of a criterion certainty coefficient in a calibration period on monthly, seasonal and annual scales is analyzed; and 4 according to different scales and different factor selection methods in the step 3, a model is analyzed and tested.

An embodiment of the invention discloses a ball hitting route recommendation method. The method comprises the steps of obtaining ball identifiers and position information of multiple billiard balls onthe current table surface of a billiard table, pocket opening identifiers and position information of pocket openings, and determining at least one ball hitting route corresponding to the current table surface, wherein the ball hitting route at least comprises a target ball corresponding to the ball hitting route, the pocket opening identifier of the target pocket opening and/or a ball hitting parameter; according to the position information of the billiard balls on the current table surface, the position information of the target ball of the ball hitting route and the position information ofthe target pocket opening, calculating an expected income value corresponding to each ball hitting route; and according to the expected income value, determining the target ball hitting route in theat least one ball hitting route, and outputting the target ball hitting route. By adopting the method, the accuracy and operability of ball hitting route recommendation in a billiard ball auxiliary process can be improved.

The invention discloses a plateau environment simulation device system, comprising a cabin which is provided with a switch door. The plateau environment simulation device system is characterized by further comprising a computer. The cabin is internally provided with an environment sensing detection system, an environment regulation system and a physiological index monitoring system; and the environment sensing detection system is disposed in the cabin, and includes a temperature sensor, a pressure sensor, an oxygen concentration sensor, an ultraviolet intensity meter, a light intensity tester,and a humidity sensor. The plateau environment simulation device system can completely simulate the natural environment, air pressure, oxygen concentration, ultraviolet intensity, temperature and wind parameters of the plateau, monitor the physiological indicators of the experiencer in the cabin, and provide an objective judgment on the plateau adaptability of the experiencer.

The invention relates to the technical field of metallurgical hot rolling process, and particularly discloses a method for designing a section height sequence of structural steel sheared by hot rolling flying shears, which comprises the following steps of: calculating a space trace curve of shearing blades; calculating theoretical coordinate values of the shearing blades; calculating a shear angle; performing translation on the output rotating speed of a motor, and the like; and finally determining judgment criterion for the selection of the motor and the rotating speed in systematic checking calculation to be that a relative difference between the output rotating speeds of the motor before and after the shearing may be not more than 25 percent and not less than 10 percent, determining that the designed section heights of the structural steel meet design requirements after the motor and the rotating speed reach the judgment criterion in a given section height designing range of the structural steel, and sequentially recording the designing values to obtain the section height sequence of the structural steel sheared by the hot rolling flying shears. The method can be used as an advantageous supplementary design for the design of a crank-link mechanism of the flying shears, and has the advantages of high universality, adaptability, high speed, high calculation accuracy and the like.

The invention discloses a pipe and pipe fitting punching device for positioning a temperature sensor, and relates to the field of electric smelting pipe fitting welding detection. The pipe and pipe fitting punching device comprises a bottom plate, a pipe positioning mechanism arranged on the bottom plate, a pipe inner wall punching mechanism and a pipe fitting outer wall punching mechanism. To solve the problem that at present, most of hole positions, for positioning the temperature sensor, in existing pipe fittings and pipes are manually completed by experience, and precision is hard to control, the high-precision, high-consistency and high-automation-degree pipe and pipe fitting punching device for positioning the temperature sensor is provided.

The invention provides an intelligent partial discharge inspection robot. The intelligent partial discharge inspection robot comprises a partial discharge inspection robot, an orbit and a back-stage host computer, wherein a partial discharge detection assembly, a controller and a data collector are arranged on the partial discharge inspection robot; the back-stage host computer communicates with the partial discharge inspection robot through electric carrier waves; the back-stage host computer is used for issuing an inspection command to the inspection robot so that the controller is used forcontrolling the inspection robot to move to an inspection point; the partial discharge detection assembly is used for collecting partial discharge data; a central processor is used for processing thepartial discharge data and storing the processed data into a memory; the partial discharge data are fed back to the back-stage host computer; and after the partial discharge data are completely received by the back-stage host computer, the inspection robot is controlled to move to a next inspection point. The intelligent partial discharge inspection robot provided by the invention solves the problems that the detection cost of online partial discharge is high, the safety of portable partial discharge detection staff is not guaranteed and the reference of detection results is not high.

The invention discloses a method for continuously measuring carbon content of molten steel in an electric steelmaking furnace and belongs to the technical field of metallurgical steelmaking. The method utilizes a common gas flowmeter, a programmable controller (PLC) and a computer system to measure relevant parameter values for calculating the carbon content, carries out the continuous calculation on the carbon content of the molten steel through a mathematical model, continuously displays the current carbon content of the molten steel in a user interface and carbon contents of other samples after a melting down sample is obtained by calculation and other relevant parameters so as to realize real-time online forecasting of the carbon content of the molten steel. The invention relates to asimple service method and is not influenced by furnace capacity, material situation, configuration of decarbonization equipment and has high forecasting precision of the carbon content of the molten steel; and the method makes a judgment on the current carbon content of the molten steel in the electric steelmaking furnace with high accuracy, saves the steelmaking time and improves the production efficiency of steelmaking.

A method for evaluating the tensile strength of high-alloy heat-resistant steel, the method comprising: obtaining high-alloy heat-resistant steel with a cast test block; obtaining the Brookfield hardness detection value of the high-alloy heat-resistant steel with cast test block; Regression fitting analysis was carried out on the corresponding relationship between the distributed hardness value and the tensile strength value, and the regression relationship between the tensile strength and the hardness was obtained. This relationship can be used to evaluate the tensile strength of the high alloy heat-resistant steel attached to the cast test block Strength, through the experiment, the tensile strength value obtained by this method is compared with the actual value of the tensile strength detected by the universal tensile testing machine, and the purpose of evaluating the strength value of the casting through simple and easy hardness testing is fully achieved. Therefore, it can be used to guide actual production, process testing, and customer performance witness, which improves the manufacturing level of large heat-resistant steel castings and has strong practicability.

The invention provides a steel rail light strip distribution detection device and method, and relates to the field of rail traffic. According to the steel rail light strip distribution detection device and method, a space steel rail profile curve and distribution of a light strip on the space steel rail profile curve are obtained on the basis of a first steel rail image, a second steel rail image and light strip regions of the first and second steel rail images; the space steel rail profile curve and the distribution of the light strip on the space steel rail profile curve are mapped to a prestored standard steel rail profile curve model, and mapped light strip distribution data is extracted; in this way, the obtained light strip distribution data precision is high, so that the reliability and reference of the light strip distribution data for steel rail maintenance and fault diagnosis are quite high.

The invention discloses a process for improving bearing capacity of a formation. The process for improving the bearing capacity of the formation comprises the following steps of: a, working out respective sizes of formation pores according to formation fracture data obtained by block coring, and preparing different sealing slurry by using gel and sealing particles of corresponding dimensions according to the respective sizes of the formation pores; b, pumping the prepared sealing slurry into a shaft, and closing a blowout preventer after the sealing slurry is full of the shaft; c, continuously pumping the sealing slurry into the shaft to enable the sealing slurry in the shaft to be extruded into the formation; and d, respectively building frameworks at the formation pores by rigid sealing particles in the manner of bridging, filling and compacting flexible sealing particles among the rigid sealing particles to fill pores near the formation of the shaft to the greatest extent so as to enable the casing pressure value of the blowout preventer to be increased continuously, therefore improving the bearing capacity of the formation. According to the process for improving the bearing capacity of the formation, bearing sealing is performed on the formation in advance, through the formation fracture data obtained by the block coring, the sealing is performed on the formation by using the chemical gel which is equivalent to formation porosity and the rigid and flexible sealing particles when drilling is performed, and therefore, the bearing capacity of the formation is artificially improved, the phenomenon that drilling fluid leaks from the formation due to the fact that drilling fluid density rises at the later stage of construction is prevented, and drilling construction can be smoothly performed.

The invention relates to the technical field of defect identification, in particular to a bearing defect damage degree evaluation method and system based on image processing. According to the method, a first suspected defect pixel point and a defect pixel point are obtained through a defect detection network; gray triads of the first suspected defect pixel points are obtained, and second suspected defect pixel points are screened out according to changes of gray information between the adjacent gray triads. And judging the category of the second suspected defective pixel points by continuously changing the neighborhood range of the second suspected pixel points, and removing the second suspected pixel points representing normal pixel points to obtain complete defective pixel points. And obtaining the damage degree according to the distribution information and the category number of the gray triads of the defect pixel points. According to the invention, accurate positioning and analysis of defect positions are realized.

Memory systems that provide separate read and write address decoding to support simultaneous memory read and write operations are disclosed. Separating read and write address decoding can avoid circuit conflicts for a simultaneous memory read and write operation even if employing single port memory bit cells. The read and write addresses of respective read and write operations are separately decoded into read and write row and column selects driven to a memory array so that simultaneous read and write operations are not affected by each other. To avoid a circuit conflict for a simultaneous read and write operation, the memory system is configured to prioritize a write row select over a read row select to drive a row of memory bit cells in the memory array. In this manner, that write operation will always be successful regardless of whether the read and write row select are to the same row.

The invention discloses a design flood uncertainty analysis method based on hyper-quantitative flood time-varying characteristics. The method mainly comprises the following steps: constructing a super-quantitative flood series POT by adopting a flood peak sequence under a threshold value; establishing dynamic correlation between flood elements and physical influence factors by taking a basin waterand soil conservation area as a covariable, carrying out time-varying flood frequency analysis to deduce a design flood value in a specified recurrence period, and calculating an uncertainty influence interval of the human activity factors on the ultra-quantitative series design flood values in the specified recurrence period by combining an uncertainty analysis technology. According to the method, by constructing a flood ultra-quantitative series, the defect that the number of flood samples in a design flood calculation method based on an annual maximum AM series is small is overcome; by introducing the watershed water and soil conservation area, the reason causing the POT flood sequence time-varying property can be explained, the reliability of a time-varying property design flood result is improved, and support is provided for watershed flood control planning, scheduling and management.

The invention is a high efficiency apple gene transform method and belongs to the field of plant gene engineering. The main technology attribute is to take tissue to put up primary culture on the MS substrate, put up second culture on Multiplication substrate, take agrobacterium with FRO2 gene culture, differentiation culture and relay culture, elongation culture, rooting culture, soil culture. This invention is scientific and rational, its plant has high rebirth and transformation rates; the transgenic apple that grows by this invention has anti-lack iron gene, and can improve the attraction of iron. It solves the lack iron of apple in base, and has referential function in gene transform of other fruit.

The invention discloses a multi-dimensional method for evaluating the trust degree of mobile phone banking customers, which comprises the following steps: establishing a direct trust degree model of mobile bank customers, establishing an indirect trust degree model of mobile bank customers, and according to the direct trust degree between mobile phone users and mobile banking Establish the trust degree model of mobile banking financial business, establish the trust deviation degree model of mobile banking, and establish the trust penalty value model of mobile banking customers; according to the recent trust value and long-term trust value between mobile phone users and mobile banking, obtain trust Degree evaluation results; this method establishes a multi-dimensional trust mobile banking financial risk evaluation index system, which includes the relationship between mobile banking payment frequency and trust, mobile banking trust deviation degree, customer trust penalty value and other factors into the trust level evaluation ; Compared with the prior art, the evaluation is more comprehensive, and the obtained evaluation results are more accurate.

The invention provides a packer performance detection device. Through operating a high pressure needle type valve, a backwashing exit brake valve and a cementing truck interface brake valve on the packer performance detection device, conventional tests of seat sealing, voltage withstanding, decompression and the like of a detected packer are realized. And the tests can be extended to tests of other hydraulic tools, such as a bridge plug, a hydraulic anchor and the like. The device is especially suitable for debugging of the packer and other hydraulic tools, wherein the debugging is performed by a petroleum tool design and manufacturing company. A blind plug, a casing pipe, an upper viewing port, a lower viewing port, a first high pressure type needle valve, a second high pressure type needle valve, a third high pressure type needle valve and a well-head large cross are designed in an integration state so that an integration level of the packer performance detection device is high. After assembling and formation, the device can be used in an overall demolition state. And follow-up maintenance is convenient. Besides, parts used in the device are oil-field commonly-used standard parts so that material selecting, assembling and maintenance are easy. Mechanical processing work of the whole device is less and a service life of the packer performance detection device is prolonged.

Disclosed is a tunnel lamp with an adjustable illumination angle. The tunnel lamp with the adjustable illumination angle comprises a lamp holder base plate. A light emitting assembly is arranged on the lamp holder base plate. Two protecting baffles are arranged on the same side of the lamp holder base plate in the length direction and connected with the edges of the lamp holder base plate respectively. A power source installation base and cooling fins are arranged on the portion, between the two protecting baffles, of the lamp holder base plate in the length direction, and the power source installation base, the cooling fins and the protecting baffles are located on the same side of the lamp holder base plate. Two supporting bases are arranged on the power source installation base, and the same lamp holder support is arranged between the two supporting bases in a connected mode. A power source installation groove is formed in the power source installation base, and a power source is arranged in the power source installation groove and electrically connected with the light emitting assembly. According to the invention, due to the facts that the cooling fins are in a comb tooth shape, and the surface of each cooling fin is zigzag, the heat dissipation area is greatly increased. Due to the fact that the protecting baffles are arranged on the two sides of the cooling fins, the phenomenon that an installation worker is cut by the cooling fins when the tunnel lamp is installed can be effectively avoided. The whole tunnel lamp is compact in structure, wide in application range, good in heat dissipation performance and attractive in appearance.

The invention relates to an equipment control method and device. The method comprises the following steps of: determining whether application statistical information of first-type programs applying anawakening lock in a preset time threshold value starting from a screen-off moment satisfies a preset condition or not; and if the application statistical information satisfies the preset condition, executing an operation of stopping operating a preset number of programs in the first-type programs. According to the method and the device, the quantity and time of the programs with awakening locks can be decreased, so that the equipment power consumption is greatly reduced and the equipment duration time is prolonged.