222results about How to "The method is simple and effective" patented technology

Inductive transfer methods and structures combine, in a single system, at least two of the three functions of transferring power, communicating data, and sensing position with a vehicle on a guideway. A set of conductors is installed on the guideway to inductively couple a multiplicity of diverse signals with a corresponding set of conductors on the vehicle. The vehicle may be moving or stationary, and signals may be coupled in one or both directions. Coupling is effected without direct electrical contact, through a common region or gap, and the structures provide suitable and precise air gap control for the conductors effecting coupling of each signal. In addition, the windings are arranged with a topology and/or symmetry to cancel crosstalk between different signals.

The invention relates to a power control device and method for calibrating the power of a transmitter or receiver in a mobile communication network comprising an antenna array, wherein burst signals are transmitted to, or received by, the antenna array. The calibration of the transmission or receiving power of the transmitter or receiver includes a summing step for summing transmission or reception signals of the antenna array, and a common calibrating step for commonly calibrating the summed signals.

The invention provides a novel overhead transmission line lightning stroke current monitoring method and a novel line lightning stroke fault recognition method which are easy to implement. The technical scheme comprises an inversion algorithm for lightning stroke current of the tower top and a ground wire at the center of the tower span of a lightning struck overhead transmission line, a lightning stroke fault type recognition method and a line lightning stroke probability observation and lightning leading width calculation method. The technical scheme provided by the invention has important application values for improving the lightning performance and the risk evaluation level of the overhead transmission line, optimizing the line lightning protection design and improving the line lightning protection level.

The invention discloses a method for preparing a high-content nitrogen-doped porous carbon material. The method includes the following steps: drying and crushing a biomass raw material to obtain granules, performing a high temperature carbonization treatment in a nitrogen atmosphere, and then performing a high temperature ammoniation treatment in an ammonia atmosphere to obtain the high-content nitrogen-doped porous carbon material. The method disclosed by the invention is simple and effective, easy to operate, convenient for large-scale volume production and is suitable for application in industrial production; in a material preparation process, pore forming and nitrogen doping are performed at the same time and are finished in one step, and therefore the method is simple and effective.

The invention discloses a figure image auxiliary shooting method and system based on image aesthetics. The method comprises the following steps: (1) framing a model through a viewing frame to perform pre-shooting, and performing face detection and human body region detection on a pre-shot image to obtain a face image and a human body area image; (2) detecting whether or not a straight line passes through a figure head background in the face image, and if so, prompting a user; (3) judging whether or not the pre-shot image is a whole-body image, prompting the user according to a main body optimal proportion rule if the pre-shot image is the whole-body image, judging whether or not a human body proportion meets a composition requirement if the pre-shot image is not the whole-body image, and prompting the user if the human body proportion does not meet the composition requirement; and (4) detecting the location of the model and the size of a human body region, and prompting the user according to a rule of the thirds in composition aesthetics. The invention also discloses a figure image auxiliary shooting system based on the image aesthetics. The figure image auxiliary shooting method and system are simple and effective, high in running speed and high in feasibility. Images shot by the user after guidance can meet a composition rule, and are more aesthetic.

The invention provides a method for extracting unsaponifiable matters from shea butter oil. The method comprises the steps of ester exchange, molecular distillation, crystallization and the like. An unsaponifiable matter composition with high purity can be obtained by adopting the method. The content of the unsaponifiable matters in the composition can reach 60%, 70% or even higher; the composition contains high contents of triterpene alcohols and sterol which can exist in the form of solids; the shelf life of the unsaponifiable matters is prolonged; the unsaponifiable matters can be applied to various purposes.

The invention discloses a method for beautifying composition of an image based on main body adjustment. The method for beautifying the composition of the image based on main body adjustment comprises the following steps that firstly, main body area detection is conducted on the image, so that a main body detection image is obtained; secondly, morphologic processing and binarization are conducted on the main body detection image, so that a main body mask binary image is obtained; thirdly, a main body is removed from the image through the main body mask binary image, zooming is conducted on the main body according to the optimal main body ratio rule, and the size of the main body is adjusted; fourthly, a blank area, generated after the main body is removed, of the image is filled in through the image restoration algorithm based on a sample, so that a background image is obtained; fifthly, according to the rule of thirds in the image composition aesthetics, the zoomed main body is moved to the background image, so that the beautified image is obtained. The invention further discloses a system for beautifying the composition of the image based on main body adjustment. The method and system for beautifying the composition of the image based on main body adjustment achieve automatic beautification of the composition of the image and have the advantages of being high in operating speed, strong in feasibility and good in automatic beautification effect.

The invention discloses a preparation method of a noble metal-loaded active carbon material catalyst. The preparation method comprises the steps of preparing a nitrogen-doped active carbon material; mixing the nitrogen-doped active carbon material with a noble metal acid solution to enable acid radical ions to be adsorbed to a nitrogen functional group-containing active site on the surface of the material; and filtering, drying and reducing to obtain an active carbon material with noble metals dispersed on the surface of the active carbon material and in holes. The preparation method further comprises the steps of oxidizing the active carbon material, and then performing high-temperature ammoniation treatment under the ammonia atmosphere to obtain a nitrogen-doped active carbon material; uniformly mixing the ammoniated nitrogen-doped active carbon material with the noble metal acid solution, and adsorbing through the noble metal acid solution; filtering and drying, and performing in-situ reduction by low-temperature cold plasmas to obtain the active material with the noble metals dispersed on the surface of the active carbon material and in the holes. The method is simple and effective, is easy to operate, facilitates large-scale batch production and is suitable for being applied in industrial production.

Relating to preparation of euphausia protein peptide mixtures, the invention provides a method for preparing a high-quality low-fluorine euphausia superba protein polypeptide mixture. By adopting euphausia superba for freezing and homogenate, the method of the invention is characterized by: adding a papain preparation with a mass ratio of 1%-2% into a homogenate liquid, mixing them well, and leaving them to 3h-5h of reaction under a stirring temperature of 50-60DEG C, then conducting centrifugation to obtain a liquid phase A and a sediment B; adding the sediment B into isopyknic water for dissolving so as to obtain a suspending solution, which is then filtered by a bolting silk of 300 meshes, thus obtaining a suspending solution C and a residue D, washing the residue D once with water so as to obtain a residue E and a suspending solution F, combing the suspending solution C and the suspending solution F and carrying out centrifugation, thus obtaining a liquid phase G and a sediment H,and subjecting the liquid phase A, the liquid phase G and the sediment H to drying so as to obtain a low-fluorine euphausia protein peptide mixture dry basis.

The invention provides a DMS driver fatigue pre-warning system, which includes a camera, a processor, an alarm module and a speed limiting module. The camera is installed in a cab, and used for collecting human face images of drivers and transmitting the collected human face images to the processor through electrical signals; the processor is used for calculating the driving time of the drivers, and when the driving time exceeds a predetermined threshold, fatigue signals are sent to the alarm module and the speed limiting module; the alarm module provides sound and/or visual alarms to the drivers after receiving the fatigue signals; and the speed limiting module limits the driving speed of vehicles after receiving the fatigue signals. According to the DMS driver fatigue pre-warning system,the driving time of the drivers is calculated through human face recognition and/or fingerprint recognition, the alarm module and the speed limiting module are used for guiding the drivers to take arest regularly, a human-machine interaction module is used for determining whether the drivers are tired or not, the method is simple and effective, and the cost is also low.

The invention relates to chemical male sterilization, pollen-tube pathway and pollen-mediated transformation technologies, and belongs to the technical field of molecular breeding and gene engineering. The method comprises the following steps of: performing chemical male sterilization treatment on a crop T0 of a budding stage; cutting stigmas of buds; mixing fertile pollen by using the pollen-tube pathway technology, namely using target gene-containing agrobacterium-mediated infection solution (added with 5 percent of sucrose and 500muL/L of SilwetL-77) with OD600 of 0.8; and dipping an absorbent cotton ball in the bacterial solution, coating the bacterial solution to the stigma cut ovaries, performing shading treatment for three days to realize normal growth, and finally collecting selfing seeds. Herbicide resistance screening is performed on the generation T1, polymerase chain reaction (PCR) detection is performed on resistant plants, and positive plants are determined. The method has the characteristics of low cost, simplicity in operation, no need of expensive instruments and equipment, high transformation rate (1 to 5 percent) and the like, is suitable for any flowering plant, and can be applied to large-scale crop genetic transformation.

The invention belongs to the technical field of nuclear waste treatment, and relates to a method for treating radioactive solid organic waste. The method includes the following sequential steps of: (1) adding an oxidizing agent to perform a digestion reaction on the radioactive solid organic waste; (2) mixing the digested radioactive solid organic waste with combustion improver and an oxidizing agent, then delivering the mixture into a reactor, and performing an oxidation reaction in a supercritical aqueous phase, wherein a desalination device is arranged in the reactor; and (3) discharging radioactive concentrated salt residues which are obtained after desalination is conducted in the desalination device from a residue discharging mouth in the reactor, and performing gas-liquid separationon the matter discharged from an outlet in the reactor through a gas-liquid separation device. Through the method, oxidation treatment can be carried out on the radioactive solid organic waste by using the supercritical water, the processing capacity and conversion rate can be improved, and radioactive nuclide can be separated effectively in the reactor.

The invention discloses a method for grinding an interference-free periphery of a curve surface of a vane. Four-axle-linked grinding equipment and a grinding wheel peripheral arc structure are adopted. The method comprises the following steps of: 1) clamping in a mode that an axis of the vane is along a Z-axis direction; 2) setting an initial swing angle alpha for an axle A; 3) determining a normal grinding radius of a point to be processed; 4) determining a rotation angle beta of a workbench along an axle B; 5) determining a grinding contact point fitting with the vane on the surface of a grinding wheel; 6) linking an axle X, an axle Y, an axle Z and the axle B; and 7) repeating the process, and forming a continuous grinding track to complete the overall grinding. The method has the characteristics of high processing precision and high production efficiency, and is suitable for grinding various materials which are difficult to process and various curve surfaces of vanes without curvature mutations.

The invention discloses a selfheal quality control method which is a high performance liquid chromatography and a thin layer chromatography the marker components of which contain compound salviaflaside. The high performance liquid chromatography comprises the following steps: preparation of comparison products: carbinol is used to dissolve the salviaflaside compound so as to prepare the comparison product solution of the salviaflaside compound; preparation of test product solution : selfheal medicinal material powder is taken to be precisely weighed, added with carbinol, and filtered by a microfiltration membrane to be used as the test product solution; and injection to a liquid chromatograph, determination and mobile phase: elution by acetonitrile acetic acid liquid. The thin layer chromatography comprises the following steps: rosmarinic acid of the comparison product solution and salviaflaside solution and the test product solution are respectively absorbed to be sampled on the same thin board, chloroform:carbinol:formic acid or chloroform: water are taken as developers, developing, taking and drying are carried out, vanillin concentrated sulphuric acid is used for developing, and heating is carried out until spots are clear. The method is simple and effective, and thereby preventing illegal producers from using roots, stems, leaves and other non-medical parts to substitute the cluster parts of the selfheal to be used for the medical purpose.

The invention provides an off-line compensation method for the contour error of the machining path of a four-axis lathe, which belongs to the field of contour error compensation of numerical control machine tool processing. The invention relates to the off-line compensation method for the processing path contour error, and the machining precision of the closed closed-loop four-axis numerical control lathe is improved. The method uses an initial turning code to generate a theoretical cutter location point and a theoretical tool axis vector. A four-axis lathe Jacobian matrix is constructed. Theactual speed of a feed axis is calculated offline, so as to estimate the follow-up error of the feed axis of the lathe. An actual cutter location point and an actual tool axis vector are calculated. Three non-uniform rational B-spline curves are used to fit the theoretical cutter location point and a tool axis mark point. A tangential error inverse method is used to estimate the foot point of theactual cutter location point to a theoretical cutter location point curve. The contour error of the cutter location point and the contour error of the tool axis vector are calculated. Finally, the follow-up error of the feed axis is pre-compensated. The method can realize the pre-compensation of the contour error of the closed closed-loop four-axis numerical control lathe, and has the advantages of convenient implementation and obvious effect.

The invention discloses a high-frequency and high-speed flexible copper-clad plate and a preparation method thereof. The flexible copper-clad plate comprises a polymer insulating base film, a polymer adhesive layer and a metal foil, and has good dielectric property. The dielectric constant of the prepared flexible copper-clad plate is 2.4-3.0, and the dielectric loss is 0.001-0.005. The preparation method comprises the steps: firstly, carrying out surface treatment on the polymer insulating base film; uniformly coating the polymer insulating base film subjected to surface treatment with a polymer adhesive and then carrying out continuous lamination on the metal foil by adopting a hot roller; and finally carrying out high-temperature curing to obtain the high-frequency and high-speed flexible copper-clad plate. The prepared flexible copper-clad plate has the characteristics of high frequency and high speed, is extremely low in dielectric constant and dielectric loss, and can be widely applied to the fields of radar, aerospace equipment, navigation equipment, aircraft instruments and smart phones.

The invention discloses a preparation method of a low-smoke-density halogen-free flame retardant cable material. The method comprises the following steps: after an inorganic flame retardant aluminum hydroxide is mixed with an antioxidant, a dispersant and other additives, and adding the obtained mixture and a certain amount of polyethylene resin into a single-screw extruder in proportion through different feeders, wherein the weight percentage of polyethylene is not more than 3%; after the added materials are fully mixed, carrying out granulating extrusion on the obtained mixture so as to prepare polyethylene coated aluminum hydroxide flame retardant particles; and adding the polyethylene coated aluminum hydroxide flame retardant particles, polyethylene, polyvinyl acetate and polypropylene resin into a twin-screw extruder in proportion through different feeders, and carrying out mixing and granulation on the obtained mixture so as to obtain the low-smoke-density halogen-free flame retardant cable material. The method disclosed by the invention is simple and effective, the prepared low-smoke-density halogen-free flame retardant cable material is good in flame retardant and mechanical properties, and after the low-smoke-density halogen-free flame retardant cable material is prepared into a cable, the cable can pass a wire smoke density test.

A method for effectively inhibiting single rod tracking zero drift relates to a servo control system field. In a current single rod tracking control process, speed closed loop control and position open loop control are used so that influence generated by a disturbance torque on the drift can not be controlled. By using the method of the invention, the above problem can be solved. After the single rod returns to zero, a single rod tracking system automatically switches to a position closed loop system which takes a current encoder as a zero point. During the switching, a single rod controller variable is assigned to a digital guiding controller so that smooth switching can be achieved. Taking a current encoder position as fixed point guiding, when the single rod swings out an instant of a dead zone scope, the system automatically opens the position fixed point guiding loop and switched into a traditional single rod speed guiding mode. Because there is the position fixed point guiding after the single rod returns to zero, the drift caused by various kinds of the disturbance torques can be inhibited. The method is suitable for speed stabilization tracking and stabilization positioning during turntable single rod tracking. The method has substantial effect on the control system which generates the position drift because of the disturbance torque of friction and the like, such as a follow-up turntable and the like.

The invention discloses a method for automatically extracting abstracts of network articles, which comprises the following steps: obtaining articles; setting summary length; extracting keywords and obtaining the weight and part of speech of the keywords; carrying out Chinese part-of-speech tagging on the obtained keywords; getting the keyword list Tags; obtaining a title keyword list and a body keyword list; getting the same list of keywords; performing weighted average; performing segmentation; getting the number of hits and the cumulative weight of the word; and getting the final summary andso on. The above step are taken, the invention can automatically obtain the abstract of the article captured by the network and store the abstract in a database, which provides a basic guarantee forthe following retrieval and display, and has the beneficial effects of simple and effective thinking, simple implementation and so on. Finally, the invnetion ensures the extraction accuracy while achieving a concise and efficient effect, so that a large number of network articles can be processed in a limited time with high efficiency and high quality.

The invention discloses a bridge disease real-time detection method based on model pruning, and the method comprises the following steps: firstly obtaining a bridge apparent damage image through an unmanned plane, and dividing a data set into a training set, a verification set and a test set according to a proportion; increasing the number of data sets by applying an image enhancement method; constructing a yolov3 network framework, adding L1 regularization constraints of gamma parameter items to each batch of normalization layers (BN) of the network, setting a sparsity adjustment strategy ofprogressive local attenuation, and training the reconstructed network to obtain a training model; after the gamma parameters of all the trained BN layers are obtained, performing model pruning of thelayers and the channels according to the sizes of the gamma parameters between the layers and in the layers, deleting the channel with the small weight, and obtaining a pruned model; and carrying outbridge apparent disease automatic identification by using the trained model. The invention is high in efficiency and low in cost, and compared with a traditional manual label marking training method,the method has more obvious automation and high efficiency.