104results about How to "Good motivation" patented technology

A device to detect defects of magnetic conducting structures based on magnetoconstriction torsional waves belongs to an ultrasonic nondestructive detector, which overcomes shortcomings of high guide wave attenuation of vertical mode and remarkable frequency dispersion effect. During detection, it is unnecessary to process surfaces of the structure. The present invention comprises a pulse signal generator, a power amplifier, a magnetoconstriction torsional wave sensor, a signal preprocessor, an A/D converter and a computer. Wherein, the magnetoconstriction torsional wave sensor is composed of an excitation unit and a receiving unit. The computer controls generation of pulse signals. The pulse signal is amplified by the power amplifier and then generates torsional waves in the structure through the excitation unit. The receiving unit receives the torsional wave from the structure, which is processed by the signal preprocessor and then converted into digital signals by the A/D converter. The computer obtains defect information of the structure. The present invention can conveniently excite and receive torsional waves, detect defects along axis of the structure and adapt to long-distance detection of clad pipes and cables with PE jacket.

The invention discloses a three-dimensional elliptical ultrasonic vibration cutting device adopting a longitudinal bending composite mode. The three-dimensional elliptical ultrasonic vibration cuttingdevice is composed of a pre-tightening bolt, a rear cover plate, a first excitation source, a second excitation source, a middle cover plate, a third excitation source and a flange front cover plate.The three-way excitation sources are driven by input signals with the same frequency, wherein the phase angles of the input signal are different in pairs. By adjusting the voltage and phase difference of driving signals of the three-way excitation sources, a tool nose point of a tool mounted at the output end of the three-dimensional elliptical ultrasonic vibration cutting device obtains spatialelliptic vibration trajectories with different vibration amplitudes and phase differences. According to the three-dimensional elliptical ultrasonic vibration cutting device, the assembly link is less,and mounting and dismounting of a blade are convenient; a flange structure is adopted, and the system stiffness is good; and the effect on the aspect of cutting machining of parts with hard machiningmaterials, weak stiffness and free curved surfaces is remarkable, cutting force and the cutting temperature can be significantly decreased, tool abrasion and machining deformation of the workpiece materials can be significantly reduced, the surface quality and form and position accuracy of the parts are improved, the subsequent machining process is reduced, and then the machining efficiency and economical efficiency are improved.

The invention discloses a magnetic vortex array imaging detection method and a magnetic vortex array imaging detection device for detecting the defect of a steel plate, wherein the method comprises the following steps: acquiring a characteristic parameter and determining an optimal excitation frequency; exciting a sinusoidal alternating current magnetic field and inducing an alternating vortex current; acquiring an induction alternating magnetic signal near a detected area of the detected steel plate; processing the induction alternating magnetic signal and conducting the first differential transformation operation to obtain a transformed differential signal; judging whether the differential signal is less than the preset threshold, if so, judging that no defect exists, otherwise, judging that the defect exists, and extracting an area signal; inputting the area signal into a constructed neural network model to implement defect reverse inversion to obtain a defect profile parameter; and drawing a defect profile according to the defect profile parameter to realize imaging. The method uses a concentric ring type magnetic vortex array detection array to detect the defect, so that the defect of the steel plate is detected at the high accuracy, the detection accuracy is improved, and the defect imaging effect is improved.

The invention relates to a self-cleaning goat feeding trough. The self-cleaning goat feeding trough comprises fixed supports, a cleaning device, a conveying device, a feeding trough body and a garbage collection bag; the fixed supports are arranged at the two ends of the feeding trough body, the cleaning device comprises a fixed rod and a scraping plate, and the scraping plate is rotatably connected with the lower end of the fixed rod; the conveying device comprises a driving wheel, a driven wheel, a belt and a motor, the motor is connected with the driving wheel, the belt is installed on the driving wheel and the driven wheel in a sleeving mode, and the upper end of the fixed rod is fixedly connected with the outer side of the belt; the driving wheel and the driven wheel are fixedly connected with the fixed supports, the feeding trough body is connected with the fixed supports through hooks, the side walls of the two ends of the feeding trough body are each provided with a through hole, and the garbage collection bag is connected with the through holes. By means of the self-cleaning goat feeding trough, automatic cleaning of the goat feeding trough can be achieved, manual intervention is not needed, large-scale goat captivity is facilitated, and the goat breeding benefit is increased.

The invention discloses a threat information exchange sharing method based on a block chain, and the method comprises the steps: 1),a threat information block chain system is set with the system comprising comprises a threat information block chain, a synchronization node, and a plurality of maintenance nodes; a user registers as a threat information block chain user, and obtains a corresponding public key and a corresponding private key; 2) a threat information producer sets intelligent contract content on the system, signs the intelligent contract content with a private key and then issues the intelligent contract content to a threat information block chain; 3) the intelligent contract content signed issued by the information consumer synchronously is threatened, a private key used to sign and the content is broadcast through the system; 4) a maintenance node analyzes the content in the smart contract and packages the content into a new threat information block A; 5) a block A is broadcasted to the system, the maintenance node adds the block A to the threat information block chain after consensus of the block A is achieved, and 6) the maintenance node achieves consensus after confirming the effectiveness of the smart contract, creates a new block B and broadcasts a new block B through the system.

The invention discloses a lignin-degrading enzyme regulator and an application thereof. The lignin-degrading enzyme regulator is added by two steps in an aerobic composting process. The lignin-degrading enzyme regulator comprises a manganese peroxidase and lignin peroxidase regulator and a laccase regulator, wherein the manganese peroxidase and lignin peroxidase regulator comprises mixed liquid A of Tween 80, hydrogen peroxide and trace stimulation elements; the laccase regulator comprises mixed liquid B of Tween 80, 1,2-dimethoxybenzene and trace stimulation elements. The lignin-degrading enzyme regulator can be used for regulating secretion of lignin-degrading enzyme in fungi and has the advantages of good promotion effect, simple, economic and practical technology and the like.

The invention relates to a digital differential micro-accelerometer chip which comprises a silicon substrate and two quartz double-end fixing tuning forks, wherein the silicon substrate has the functions of a mass block and a spring; the silicon substrate is composed of the mass block and two cantilever beams for supporting the mass block; a mass block-spring system composed of the mass block and the cantilever beams means the cantilever beams have elasticity along a sensitive direction of the micro-accelerometer chip and the cantilever beams are arranged along one diagonal direction of the mass block; the quartz double-end fixing tuning forks are arranged along the other diagonal direction of the mass block; and the two quartz double-end fixing tuning forks with same structures are arranged in a differential form. The digital differential micro-accelerometer chip can eliminate the influence of temperature on a sensor, can increase the degree of nonlinearity of the sensor and has the advantages of high response speed and high precision.

The invention provides a multi-agent based ordered charging method of an electric automobile. The method is characterized in that a home agent and a transformer substation agent coordinately work to service a power grid agent to handle with a large amount of complex charging requests in a distribution manner; and the charging behavior of the electric automobile is scheduled through a real-time greedy algorithm. According to the method, the current real-time energy demand information and the charging time arrangement of the electric automobile, rather than the information of the electric automobile to be connected to a power grid in future and a complex prediction method and the optimizing technology, are needed, so that the expansion is high; and the method is applied to the high permeability condition of the electric automobile. The charging process of the electric automobile is a constant-power continuous charging process through which a battery of the electric automobile is prevented from being frequently switched among the charging modes, and the influence of the charging schedule on the service life of the battery of the electric automobile can be reduced to the maximum. With the adoption of the method, the real-time charging optimizing effect of the electric automobile is effectively improved; the peak shaving and load shifting can be performed well while the user demand is met and the user charging cost is decreased, and the power grid stability is ensured.

The invention discloses a nonionic water base amphiphilic engine cleansing agent, comprising the following components by weight percent: 10-15% of washing foaming agent, 18-22% of ether-type nonionic surfactant, 4-6% of colloid, 0.1-0.5% of demulsifier, 0.05-0.10% of engine abstergent, 4-6% of activating agent and the balance of water. The nonionic water base amphiphilic engine cleansing agent provided by the invention belongs to a special engine washing additive of a vegetable biological preparation, and has the properties of biodegradation, low toxicity and extremely less pollution to environment; the engine can be washed more thoroughly and cleanly by utilizing the engine cleansing agent, the rust corrosion drawback can not be caused, and the engine oil cost and the fuel cost are saved compared with those of the existing methods; and the vehicle power is preferably utilized, thus achieving the effects of emission reduction ( the emissions of waste lubricating oil, a flammable liquid and waste gas are reduced), energy conservation (the lubricating oil, the flammable liquid and power fuels are saved), environment friendliness ( the production, transportation, storage and use processes conform to a safety environment conservation standard) and the like.