39results about How to "Good speed" patented technology

Methods and devices for improved chemical and biomass detection assays combined well defined microstructures having independently addressable electrodes with various surface immobilization electrochemical assays. Combining known chemical detection immobilization assays, electrochemically active moieties with microstructures having independently addressable electrodes provides for vastly improved methods of detecting microorganisms, chemical compounds, and measuring membrane transport.

The invention discloses a reconstruction method of sparse signal, mainly solving the problem of low rate of raw sparse signal reconstructed from observation vectors. Utilizing the decomposability of aconstrained object function, the method decomposes the problem of optimizing the constrained object function into a series of small constrained object functions for optimization to improve the reconstruction rate, comprising a raw data acquisition part, a raw sparse signal reconstruction part and a reconstruction accuracy evaluation part, wherein the raw data acquisition part comprises raw sparsesignal generation, matrix observation and vector observation; the raw sparse signal reconstruction part mainly comprises setting unconstrained object function, deducing constrained object function, decomposing the constrained object function by a sequential minimal optimization method, calculating reconstruction signal and debiasing reconstruction signal; the reconstruction accuracy evaluation isto compare the magnitude of the error of mean square. The reconstruction method can improve the reconstruction rate on the premise of ensuring reconstruction accuracy rate and be used for solving theproblem of sparse signal reconstruction in the fields of compressed sensing and the like.

An ion trap is provided with at least two discrete trapping regions or segments. Both segments are located in a vacuum chamber of a mass spectrometer system. An entrance of the ion trap is disposed downstream to a laser based ionization source to receive the ions with a wide range of kinetic energies that have been generated by the laser-based ionization source. Once sufficient ions have been accumulated in the first segment and sufficient time has passed to cool the ions, they are transferred to the second segment and ultimately ejected through an aperture or slot to a detector arrangement to produce a mass spectrum.

The invention discloses a method for realizing high voltage cable-overhead line hybrid line fault ranging by using the phase characteristic of a positioning function, which belongs to the technical field of relay protection of power systems. The method comprises: firstly, acquiring positive sequence electrical data at two ends of a failed hybrid line system and equaling the entire hybrid line to a line of the same length; secondly, deducing the positioning function by using the positive electrical data at the two ends of the hybrid line system, and determining a minimum fault partition having a fault point according to the size of the phase of the positioning function; and finally, accurately finding the fault range of the hybrid line in the fault partition by using the size of the phase angle of the positioning function. The method can accurately find the position of a fault, reduce troubleshooting time and accelerate power supply restoration and has a great significance for the safe and economic operation of the power system.

The invention discloses a fault diagnosis method with fault-tolerant control of switch reluctance motor position sensors. The fault diagnosis method includes diagnosis and fault-tolerant control on faults of several position sensors and diagnosis and control over fault recovery of the several position sensors. The fault diagnosis method can timely diagnose faults of a position sensor of each phase, switch control algorithms and enable operation states of a switch reluctance motor to be free from influences of the faults of the position sensors, and namely normal operation can continue to remain when the faults of the position sensors happen; when the position sensors recover, whether signals are normal is judged first, if the signals are normal, diagnosis faults recover, original algorithms are switched back, therefore, fault-tolerant capacity of the switch reluctance motor is effectively improved, and great significances are achieved.

The invention discloses a self-adjusting fuzzy Smith-PID temperature control system and method. The system comprises a self-adjusting fuzzy Smith-PID controller, a programmable controller, a temperature control execution device and a temperature sensor; the self-adjusting fuzzy Smith-PID controller is formed in a way that a fuzzy controller and a Simth pre-estimation compensator are introduced into a PID controller. The method comprises the following steps: 1, outputting collected temperature variable data to the fuzzy Smith-PID controller; 2, solving a temperature deviation value and a temperature deviation change rate; 3, determining a discourse domain and a quantization factor; 4, selecting a language variable fuzzy set of input and output variables; 5, solving fuzzy adjustment values of three control parameters of the PID controller; 6, carrying out defuzzification processing on the fuzzy value; 7, adding a Simth estimation compensation controller; 8, controlling a pusher and a fire grate.

The invention relates to an electric system wide area dynamical control method and system for compensating distributive communication time delay, and belongs to the field of electric system wide area dynamical control. The electric system wide area dynamical control method provided by the invention comprises the following steps of: after a wide area dynamic controller obtains measurement data, respectively predicting and extrapolating the measurement data according to a pre-set prediction method and maximum communication delay, so as to obtain controller input data which are sufficient to compensate distribution characteristics of the communication time delay; respectively calculating according to the controller input data to obtain a series of control data; uniformly sending the control data to a network control unit; and selecting the corresponding control data as output according to current time by the network control unit for electric system wide area dynamical control. With the adoption of the technical scheme provided by the invention, different prediction algorithms can be selected aiming at different measurements, so that the prediction precision and the instantaneity can be improved; the prediction method is used for covering most part of the communication time delay, so that the distribution characteristics of the communication time delay can be effectively compensated; and a used wide area dynamical controller is mounted in a dispatching center, so that the coordination control of the plurality of wide area dynamical controllers can be conveniently carried out.

The invention discloses a 10kV feeder line fault prediction method based on a CNN (Convolutional Neural Network) and LightGBM (LightGBM), and the method mainly comprises the steps: 1), obtaining the original data of a power distribution network, and carrying out the preprocessing of the original data of the power distribution network; 2) extracting features from the original data of the power distribution network, and constructing a feature set f {f1, f2... F15, f16, L}, wherein L is a label and represents whether the feeder line has a fault or not, the element f1, the element f2, the elementf3, the element f4, the element f5 and the element f6 are inherent attribute characteristics, the element f7, the element f8, the element f9, the element f10, the element f11, the element f12 and theelement f13 are statistical analysis characteristics, and the element f14, the element f15 and the element f16 are depth time sequence features extracted by a convolutional neural network CNN; 3) establishing a power distribution network fault prediction model; and 4) inputting the real-time data of the 10kV feeder line of the power distribution network into the power distribution network fault prediction model to obtain a feeder line fault prediction result. The 10kV feeder line fault prediction method has the advantages that the rapidity and timeliness are better, and the prediction result can provide auxiliary decision support for the operation and maintenance management personnel of the power distribution network on the premise of meeting the accuracy requirement.

A cleaning product having a spray dispenser and a cleaning composition suitable for spraying and foaming, the composition housed in the spray dispenser wherein the composition contains: i) 2 to 15% by weight of a surfactant system comprising an alkyl ethoxylated sulfate anionic surfactant and a specific co-surfactant; and ii) a specific glycol ether solvent.

The invention discloses a mesh transfer-based antenna electromechanical coupling method, and aims to provide a quick and accurate antenna electromechanical coupling method. The method is implemented by the following technical scheme: a displacement of each node of an antenna structure after deformation is obtained by utilizing ANSYS Workbench software, calculation is performed to obtain static deformation of an antenna panel, a mesh file before deformation is read by adopting an ANSYS Mechanical APDL (ANSYS Parametric Design Language), then a deformation amount of each mesh node is calculated for each mesh node, a deformation amount of each node of a finite element model is added into an original mesh to obtain a mesh of the antenna after deformation, and then the mesh is updated and a mesh file of the antenna after deformation is output by utilizing the ANSYS APDL; a CDB mesh model is read by using an ICEM CFD module, a mesh type is converted into a PAT format, a mesh file in the PAT format is imported into Hypermesh software, and a surface mesh is extracted and output; and finally a surface mesh file is imported into electromagnetic analysis software to perform simulation, and simulated electric performance of the antenna is compared with electric performance of the antenna before deformation to obtain electromechanical coupling performance of the antenna.

The invention provides a step composite ship form with retractable type hydrofoils. The step composite ship comprises a hull with a step and a fake tail, a front hydrofoil, a rear hydrofoil, supporting columns of the hydrofoils and devices for separately controlling the corresponding hydrofoil to extend/retract, wherein the front hydrofoil is located behind the step; the rear hydrofoil is located under the fake tail; the hydrofoil extending and retracting devices are arranged in the hull, and are used for extending/retracting the front hydrofoil and the rear hydrofoil; and when being unfolded, the hydrofoils are located under a baseline of the hull; and when the hydrofoils are retracted, the front hydrofoil is located behind the step, and the rear hydrofoil is located under the fake tail, and the front hydrofoil and the rear hydrofoil are close to the bottom of the hull. According to the step composite ship form with the hydrofoils which are additionally arranged disclosed by the invention, in an abyssal region, excellent hydrodynamic characteristics of the hydrofoils can be utilized to achieve the purposes of reducing resistance, increasing speed and saving energy, and the vertical damp of the hydrofoils and the longitudinal self-stability characteristic of a hydrofoil system can also be utilized to notably improve the movement performance of a ship and light boat; and in a shallow water region, after the front hydrofoil is retracted to the step, the rear hydrofoil can be retracted under the fake tail, so that the situation that the normal exerting of the functions of the ship and the light boat is influenced because the hydrofoils touch the ground is avoided.

The invention relates to a biaxially-oriented polypropylene anti-mist film with five-layer coextrusion and a manufacturing method thereof. The anti-mist film comprises an upper layer, an upper sublayer, a middle layer, a lower sublayer and a lower layer and is in a five-layer structure, wherein the upper layer is prepared from the following materials in percent by weight: 93-99% of co-polypropylene, 0.5-5% of anti-mist agent and 0.5-2% of anti-blocking agent; the upper sublayer is prepared from the following material in percent by weight: 100% of anti-mist agent; the middle layer is prepared from the following materials in percent by weight: 95-99.5% of homo-polypropylene and 0.5-5% of anti-mist agent; the lower sublayer is prepared from the following material in percent by weight: 100% of anti-mist agent; and the lower layer is prepared from the following materials in percent by weight: 92.5-98.5% of co-polypropylene, 0.5-5% of anti-mist agent and 1.0-2.5% of anti-blocking agent. The biaxially-oriented polypropylene anti-mist film not only has good transparency, heat-sealing strength and printing effect, but also has excellent and durable anti-mist property, so that the service life is effectively prolonged.

The invention provides an optimized PI (Proportional Integral) controller parameter engineering setting method. The method adopts a genetic algorithm optimization technology, optimized PI controller parameters corresponding to different thermal processes are acquired by simulation, a PI controller parameter engineering setting model is established by taking the optimized PI controller parameters as a sample and adopting a neural network technology, and engineering setting of the PI controller parameters is thus realized, so that the shortcomings of the traditional PI controller parameter engineering setting method are effectively overcome.

The present invention relates to the technical field of display, in particular to a piece of pressure detecting paper and a preparation method thereof. The pressure detecting paper comprises a paper layer and a pressure sensitive color developing layer adhered to the paper layer. The pressure sensitive color developing layer is prepared by the following raw materials, by weight: 15 to 30 parts ofleuco dye microcapsules, 9 to 18 parts of spacing agents, 10 to 15 parts of adhesives, 15 to 30 parts of developer microcapsules, 1 to 3 parts of surfactants, and 30 to 45 parts of solvents. The pressure detecting paper has the flat paper surface and the smooth surface; the pressure sensitive color developing layer coated on the paper layer is not easy to fall and has good staining-resistant and yellowing-resistant performances; and the color displaying density and color development speed are good.

The invention provides a background information and color feature combined fish body detection method. The method includes the steps that a computer reads a background image and an image which includes a fish body target; background subtraction is used for calculating the two images so as to obtain an initial fish body moving target, and a plurality of noise points and background information points are included in the images at the moment; in order to obtain the accurate fish body target, information about a red, green, blue (RGB) color model is used for obtaining the RGB color information of the fish body form an original color image, and the image is processed through an (R-B) operator; the processed image target presents a large difference from a background pixel, a histogram is in a bimodal distribution, the peak point of the histogram is found as a threshold value point, the image after the (R-B) processing is subjected to a threshold processing, the pixel larger than the threshold value is the fish body target, and other pixels are ejected; and the image output by the computer at the moment is the final detecting result of the fish body target. The fish body detection method has the advantages of being suitable for fish body detection in the scenes with simple backgrounds and fixed video cameras, good in generality, accurate in detecting target, high in speed, and the like.

The invention discloses a three-channel water surface composite yacht which comprises a main yacht body. Side bodies are arranged on the two sides of the bottom of the main yacht body respectively. Two middle yacht bodies are arranged between the two side bodies. Three channels are formed between the two side bodies and the two middle yacht bodies. Hydrofoil systems are arranged at the front ends or the rear ends of the three channels. Each hydrofoil system comprises a hydrofoil, a rotating rod and a control device, wherein the rotating rod penetrates through the hydrofoil, the rotating rod drives the hydrofoil to rotate, the control device is installed on the corresponding middle yacht body and connected with the hydrofoil through the rotating rod, and the hydrofoil is driven by the control device to rotate. According to the three-channel water surface composite yacht, through the combination of the good layout characteristic, good resistance performance and high shipping-direction stability of a three-channel skimming yacht and the rapidness and good comprehensive navigation performance of a hydrofoil yacht with controllable hydrofoils, the inherent defects of the three-channel skimming yacht and the hydrofoil yacht are well overcome.

The invention discloses a preparation method of a cast ingot for a high-toughness and high-corrosion-resistance aluminum alloy thick plate, which comprises the following steps that during casting, an aluminum alloy melt enters a casting mold from a runner, cooling water is stored in the casting mold, and during casting, the cooling water in the casting mold cools the casting mold and is sprayed to a cast ingot solid-state area of the cast ingot; a liquid hole interface exists between an aluminum alloy melt and a solid area of a cast ingot, an ultrasonic probe set is used for at least covering the deepest part to the 1/2 depth part of the liquid hole, the ultrasonic probe set is coupled with the surface of the cast ingot through a water film formed by cooling water, and an ultrasonic signal is transmitted to an ultrasonic detector; accurate, rapid, safe and low-cost measurement of the shape of the casting liquid cavity is realized, and the shape of the liquid cavity is obtained. The casting process is optimized in real time by observing the liquid hole shape measured by the ultrasonic detector and correspondingly adjusting casting process parameters, the ideal liquid hole shape is obtained, an ideal casting structure is obtained, and finally the cast ingot for the high-toughness and high-corrosion-resistance aluminum alloy thick plate is obtained.

The invention discloses a heating container and a temperature controller. The temperature controller comprises a housing, a heat conduction block, and a temperature-sensitive element. To be specific, the heat conduction block is arranged in the housing; and a mounting hole is formed in the heat conduction block. The temperature-sensitive element is arranged in the mounting hole and is contacted with the wall of the mounting hole. According to the temperature controller, the heat conduction block can be used for conducting heat of the housing to the temperature-sensitive element rapidly and thus the temperature-sensitive element can detect the temperature accurately and rapidly, thereby improving the rapidness and consistency of temperature detection by the temperature controller.

The invention belongs to the technical field of high speed internal grinding machines, and particularly relates to an internal grinding electric spindle. The internal grinding electric spindle comprises a shell, a motor, a rotor shaft and a rotor shaft supporting structure, wherein the motor is arranged inside the shell, the motor comprises a stator part and a rotor part which are arranged together in a sleeved mode from outside to inside, the rotor part is arranged on the rotor shaft in a sleeved mode, an internal water sleeve is arranged inside a cavity between the shell and the stator part, a back cover is fixedly arranged on the back end face of the shell, a water inlet mouth, a water outlet mouth, an oil inlet mouth and an oil outlet mouth are arranged on the external end face of the shell, the water inlet mouth and the water outlet mouth are communicated with the internal water sleeve, and the oil inlet mouth and the oil outlet mouth are communicated with the rotor shaft supporting structure. The internal grinding electric spindle has the advantages of being compact in structure, light in size, small in inertia, simple and convenient to install, quick in response, small in transmission error, low in noise, good in stability, and capable of saving both time and labor, improving machining precision and production efficiency, and suitable for popularization and implementation.

The invention discloses a road planning system assisting electric vehicle battery capacity management in the field of electronic information technology. The road planning system includes a central processor, which is respectively in electrical input connection with a driving habit acquisition subsystem, an operation habit acquisition subsystem, a battery capacity acquisition subsystem and a road planning subsystem. The system performs statistic analysis of an optimal driving speed of a driver through driver's vehicle speed change data acquired by the driving habit acquisition subsystem, performs statistic analysis of an optimal driving gear and driving speed through driver's habitual operations to the vehicle acquired by the operation habit acquisition subsystem, and calculates a maximum driving distance of the vehicle through a battery pack's remaining capacity information acquired by the battery capacity acquisition subsystem, the driver's vehicle speed change data acquired by the driving habit acquisition subsystem, and the driver's habitual operations to the vehicle acquired by the operation habit acquisition subsystem.

The invention discloses a rapid and safe correction method for a power system containing a UPFC, and the method comprises the following steps: A, obtaining a node adjustment state and a node adjustment state range of the power system containing the UPFC during operation, and enabling the node adjustment state range to be a node set participating in adjustment; B, based on the node adjustment staterange, adopting a pre-established safety correction model of the node to perform correction calculation, wherein the input of the safety correction model comprises a node adjustment state, and the output of the safety correction model is the adjustment amount of each device in the optimization space; C, correcting the power system containing the UPFC according to the adjustment amount, and verifying whether each node and each branch meet the safe and stable operation condition of the system or not after correction; and if the safe and stable operation condition of the system is not met, repeating the steps A to B until the safe and stable operation condition is met, and outputting the adjustment amount of the node. According to the invention, the power system containing the UPFC can be accurately and rapidly corrected.

The invention discloses an inter-ship automatic hooking and unhooking device which comprises a locking device and a catching device, the locking device comprises a first locking mechanism and a second locking mechanism, one of the first locking mechanism and the second locking mechanism is used for being installed on the stern of a ship, and the other one of the first locking mechanism and the second locking mechanism is used for being installed on the bow of the ship. The first locking mechanism and the second locking mechanism can be connected in an automatic locking mode and separated in an automatic unlocking mode so that automatic hooking and unhooking between the front ship and the rear ship are achieved. The catching device is installed on the stern of the ship and comprises a catching net and a catching net tensioning and transmission mechanism, and the catching net can catch the rear ship before the front ship and the rear ship are hooked and pull the rear ship to be close to the stern of the front ship. According to the invention, automatic hooking and unhooking between ships of 'offshore train' naval vessel formation can be realized, longitudinal end-to-end gapless connection of more than two various naval vessels and ships can be realized, formation reconstruction of the 'offshore train' naval vessel formation is realized, the overall seakeeping of the 'offshore train' is improved, and the practicability is high.

The invention relates to a boarding machine tail gas humidity detection device and method. The device comprises a laser driving assembly, a laser, a laser beam splitter, a to-be-detected gas chamber,a first photoelectric sensor, a second photoelectric sensor, a first pre-amplification circuit, a first band-pass filter circuit, a second pre-amplification circuit, a second band-pass filter circuitand an upper computer. Compared with zirconium dioxide chemical method measurement, the method provided by the invention is not influenced by the environment of a chemical reaction, is not influencedby the chemical reaction and the consumption of reactants, needs to replace the zirconium dioxide sensor probe every three years, has the advantages of high sensitivity, good selectivity, high response speed and the like, and can realize higher-precision measurement.

The invention discloses an environment-friendly disinfectant. The environment-friendly disinfectant is prepared from the following components in parts by weight: 30-50 parts of modified tea saponin, 25-40 parts of water, 3-5 parts of sodium carboxymethyl cellulose, 10-15 parts of tea oil, 5-8 parts of nut oil, 3-5 parts of essential oil of jasminum, 3-5 parts of dementholized peppermint oil and 1-2 parts of higher alcohol. A preparation method for the environment-friendly disinfectant comprises the following steps: (1) putting tea oil, nut oil, essential oil of jasminum, dementholized peppermint oil and higher alcohol into a stirring container to stir; (2) adding modified tea saponin, water and sodium carboxymethyl cellulose into a container to co-stir and cool, and adding into an ozone curing machine for curing ozone. The environment-friendly disinfectant has killing effects on pathogenic microorganisms such as various bacteria, funguses, viruses and mycete, has good quick property, safety, penetrability, stability and no drug resistance, and further has the effects of resisting inflammation, blocking water loss, relieving slight illness and edema, promoting blood circulation, being capable of expelling wind-damp, dredging channels and collaterals, fading stretch marks and scars, improving skin gloss and elasticity, making skin tender, being capable of balancing the pH value of skin, and helping formation of collagen.

The invention relates to an unmanned aerial vehicle rolling stabilization method adopting a low-cost inclinometer for measurement. Firstly, a rolling angle instruction signal is set according to a flight mission, and a rolling angle signal of an aircraft is measured by installing a voltage type low-cost inclination angle MCA420 sensor. An error signal is obtained by comparing a rolling angle signal with a rolling angle instruction signal, two paths of integral signals are obtained through linear integration and Sigmoid nonlinear integration, meanwhile, a differential lag signal of the rollingangle signal is constructed, a synchronous interference observation system of a rolling channel is constructed, and an interference real-time observation signal of the rolling channel is obtained. Andfinally, the error signal, the two paths of error integral signals, the error differential lag signal and the interference observation signal are superposed to form a final rolling rudder deflectionangle instruction signal, thereby realizing stabilization and control tasks of the rolling channel of the unmanned aerial vehicle. The method has the advantages that only one goniometer is adopted, sothat the method is simple and economical.

The invention discloses a novel triple-hulled vessel. The novel triple-hulled vessel comprises a main hull and two side hulls located at the two sides of the main hull respectively. The main hull and the two side hulls are provided with design water lines and zero buttocks. The distance between the zero buttock of the main hull and the zero buttock of any side hull is Y, Y is larger than (BWL+bWL)/2, BWL is the maximal width of the design water line of the main hull, and bWL is the maximal width of the design water line of each side hull. The vertical distance between the center position of the main hull in the length direction and the tail end of the main hull is X1 on the horizontal plane where the design water line of the main hull and the design water lines of the side hulls are located, the vertical distance between the center position of any side hull in the length direction and the tail end of the main hull is X2, and X2 is larger than X1. By the adoption of the novel triple-hulled vessel, arrangement of a deck at the front middle portion of the vessel is facilitated, the total resistance of the vessel is reduced, and meanwhile impact on head structures of the side hulls is reduced.

The invention discloses a sterilization composition containing tetraconazole and flusilazole and application of the sterilization composition, and relates to the technical field of pesticides. The bactericidal composition comprises an effective component and an auxiliary agent, the effective component accounts for 2%-50% of the total mass, the effective component comprises tetraconazole and flusilazole, and the mass ratio of tetraconazole to flusilazole is (1-25): (1-25). According to the invention, tetraconazole and flusilazole with different action mechanisms are used as main components forcompounding, a broad-spectrum bactericidal composition for preventing and treating banana scab is selected out through screening, and the bactericidal composition has the characteristics of high efficiency, low toxicity, low residue and excellent prevention and treatment effect.

The invention provides an evaluation method for processing characteristics of a diamond pellet. The method comprises the following steps: 1) setting a characteristic index system of the diamond pellet, wherein the characteristic index system comprises integral rigidity and microscopic hardness, the integral rigidity characterizes shape preserving ability of the pellet during processing of a workpiece and the microscopic hardness characterizes influence of the pellet on surface quality of the workpiece during processing, presetting rigidity thresholds used for dividing grades of the integral rigidity and presetting hardness thresholds used for dividing grades of the microscopic hardness; 2) carrying out constant-speed loading on a to-be-evaluated diamond pellet by using a pressure testing machine, measuring a pressure-deformation curve, calculating the integral rigidity, and comparing the calculated integral rigidity with the rigidity thresholds used for dividing grades so as to obtain the grade of the integral rigidity; and 3) detecting the microscopic hardness of the to-be-evaluated diamond pellet and comparing the detected microscopic hardness with the hardness thresholds used for dividing grades so as to obtain the grade of the microscopic hardness. The method provided by the invention prevents statistics through a great number of experiments and has good rapidity.