673results about How to "Practical method" patented technology

The present invention provides a method and a device for exploiting the submarine natural gas hydrate. The present invention transfers the natural gas hydrate on the submarine surface to a dredge and then to a large-volume container after being ground; a water pump is used to add sea water appropriately into the large-volume container. As the temperature of the sea water keeps about 20 DEG C, the temperature of the sea water makes the mixture of ground hydrate and sandstone fully decomposed in the large-volume container so as to separate the natural gas, water and sandstone. The separated natural gas is drained and then directly connected with a user terminal. The present invention with convenient operation and simple device can conveniently, economically and effectively achieve the exploitation of the submarine natural gas hydrate.

Methods and systems for automating insertion of content into media-based projects are disclosed. In one embodiment, images are uploaded from a user device to a server. The server performs image analysis on the uploaded images and obtains automatic image information. After presentation of the initial project, the user manually interacts with the uploaded images to provide user inputs to the project. The system observes the user interactions to generate manual image information based on the user interactions with the project. Based on the automatic image information and the manual image information, the present invention automatically updates a printable photobook or other media-based project after automatically inserting relevant content into the project. This produces a faster and more seamless user experience, and increases the number of customers purchasing the ultimate product by minimizing friction points to purchase.

The invention relates to a method and a device for evaluating the pilling resistance of a yarn by an on-line inlet and outlet measurement mode. The method comprises the steps of input pre-evaluation, uniform winding forming, preparation of a test sample by carrying pressurizing friction, stable backing-off and on-line measurement, comparison and evaluation. The device comprises a yarn supply and recovery device, a yarn pilling condition measurement device and a winding friction mechanism. The yarn pilling condition measurement device comprises a capacitor plate, a static electricity generation device and a yarn hairness measurement system. The static electricity generation device comprises a prepositive static electricity generator and a post static electricity generator. The prepositive static electricity generator and the post static electricity generator are respectively arranged at both sides of the yarn hairness measurement system. The capacitor plate is arranged at the rear sideof the post static electricity generator. The winding friction mechanism comprises a winding drum. The separation position of the unwound yarn and the winding drum is provided with a backing-off tension measurement mechanism. The winding friction mechanism is connected with a reciprocating mechanism. In the invention, the yarn is used for directly testing and panel knitting is not used; and by taking a base yarn as the contrast, the method and the device are more accurate.

The invention belongs to the field of mine safety, relating to a method for identifying rock mass failure instability early warning by utilizing stress displacement monitoring. The method is characterized by comprising the following steps of: determining a monitoring area in an excavated rock mass and numbering, monitoring stress and deformation changes of the rock mass by utilizing a borehole stressmeter and a multipoint position extensometer and monitoring in real time, converting a tangent modulus value of the rock mass, mastering a change trend of the tangent modulus value of the rock mass, and judging whether the rock mass failure instability early warning is carried out or not. The method disclosed by the invention is simple in construction, low in cost, good in effect, has better reliability and early warning accuracy, has the capabilities of shortening the time of the rock failure instability early warning, improving the safety environment of construction and avoiding the losses of labors and devices, and is suitable for the fields of mines, tunnels, side slopes, hydropower station chambers and the like formed by excavating the rock mass.

The invention relates to a delay test method for a video image processing system, which comprises the following steps: 1) editing a to-be-tested image by the using of a PC (personal computer), sending the to-be-tested image to a tested video generator, storing the to-be-tested image in a flash by the tested video generator, and standing by; 2) at the moment of testing, selecting the to-be-tested image by an upper computer according to a video standard of tested system and testing the specific sequence form and video format; 3) sending a to-be-tested video into the tested system; and 4) sending the to-be-tested video generated from the step 2) and the video outputted by the tested system to an oscilloscope or logic analysis meter, and reading the time difference of input and output, namely acquiring the system delayed volume. The tested images in the tested video are continuously outputted at intervals. The invention provides a simple, direct and practical method, which can be used for accurately testing the delay of the video image processing system.

The invention discloses a point-cloud-model-based precise detection method for a surface profile. The method comprises: a theoretical point cloud model of a to-be-measured workpiece is established; a practical point cloud model of the to-be-measured workpiece is measured; registering of the theoretical point cloud model and the practical point cloud model of the to-be-measured workpiece is completed; feature extraction is carried out on the theoretical point cloud model to obtain a normal feature; and a profile error of the theoretical point cloud model and the practical point cloud model is calculated. According to the invention, the method that is simple and practical and can be executed rapidly can be applied to profile detection of any model; and the universality is high. The industrial profile detection precision and efficiency are improved simultaneously; and the demand of high-precision profile error evaluation can be satisfied. In addition, the invention also discloses a point-cloud-model-based precise detection system for a surface profile.

The invention relates to a method for preparing a hollow nano silica microsphere modified polyacrylate nuclear shell structure composite emulsion thin film. The thin film is prepared from a polyacrylate resin serving as a matrix and hollow nano silica microspheres prepared by a template method serving as filler through coupling agent treatment, ultrasonic dispersion, emulsion polymerization and coating process. The thin film has the characteristics of high damping property and mechanical property of the hollow nano silica microspheres prepared by the template method. The preparation method has the advantages of simple process, low cost, short period and convenient industrialized production.

The invention relates to a compressed sensing PIE system based on space-frequency coding. In a transmitter, a channel encoder, a modulator, an orthogonal converter, a symbol interleaver, a serial-to-parallel converter and a space-frequency encoder are successively connected in series, the space-frequency encoder is connected with two subcarrier mapping devices of the same structure, and each subcarrier mapping device is successively connected with an up sampler, a reverse discrete Fourier transformer, a cyclic prefix adder, a parallel-to-serial converter, a D/A conversion and RF emitter and an emission antenna. A receiver comprises a reception antenna, an RF front-end converter, an A/D converter, a Doppler frequency offset estimator, a Doppler frequency offset compensator, a cyclic prefix remover, a discrete Fourier transformer, a compressed sensing interference eliminator, a frequency-domain down sampler, a channel estimator, a space-frequency decoder, a symbolic solution interleaver, a reverse orthogonal converter and a channel decoder successively in serial connection. The compressed sensing algorithm can be directly utilized to reconstruct pulse signals of a range finder and converts the pulse signals to the frequency domain for elimination, and thus, the pulse signals of the range finder are effectively inhibited.

The invention relates to a drip irrigation under a film of a fruit tree and root field microenvironment regulation and controlling integrated method. The method comrpsies: firstly opening a regulation and control delve on the anterior limb projected on the fruit tree canopy ground, laying a seeding raising film on the lateral surface and the bottom part of the regulation and controlling delve, and placing filling materials on the seeding raising film; then disposing a drip irrigation pipe along the fruit tree row according to duplex tubes or three tubes; and laying the ground film along both sides of the tree row, covering the drip irrigation pipe and the regulation and controlling delve, and compacting with soil. Through the invention, the water and fertilizer integration drip irrigated under the film, watering and manuring automation as well as the water and fertilizer slow release and growth control and flower promotion regulated and controlled at the root field microenvironment are combined together, the root system range of the fruit tree is controlled at a certain volume, the nutrient is released in the delve through regulating and controlling the soil moisture percentage, ground temperature, fertilizer and the like of the root field, the growing development of hair root is promoted, vegetative growth and reproductive growth process above the ground part is regulated, and the hair root is regulated and controlled within the range of the delve to reach the function of coronal controlling and flower promotion. The method is simple, practical, economic and reasonable, and is a fruit tree root field microenvironment regulation and controlling integrated method with ecological environment protection and water and fertilizer conservation.

The invention relates to an operating state assessment method of a capacitor voltage transformer. Data collection of an operating state of the capacitor voltage transformer is performed; collected data are classified and processed and taken as bases for assessing the operating state of the capacitor voltage transformer; the operating state of the capacitor voltage transformer is assessed, and a comprehensive state quantity assessment system of the capacitor voltage transformer is built with an correlation analysis method; the operating state of the capacitor voltage transformer is graded with a single state quantity score calculation method and a capacitor voltage transformer overall score calculation method; constant weight coefficients of each single state quantity and each comprehensive state quantity are provided; and variable weight coefficients of all comprehensive state quantities are calculated; the overall score of the capacitor voltage transformer is calculated according to scores and the variable weight coefficients of all comprehensive state quantities; and then the operating state of the capacitor voltage transformer is judged according to the overall score situation of the capacitor voltage transformer.

The invention discloses a method for obtaining a load density index based on cellular historical data. The method for obtaining the load density index based on the cellular historical data is characterized by comprising the following steps: a cellular is generated, the power supply area of a 10KV feeder line serves as class cellulars, and the class cellulars contain actual measurement data; the power supply area is divided according to square meshes of the same size to form the class cellulars, and a load is to be forecasted. An electric power geographic information system (GIS) is set up, historical loads, power supply areas and land information of the class cellulars are integrated in the GIS, the cooperation index of the load density is determined, the maximum value of the load density of the class cellulars serves as a benchmark, and the load densities of other similar cellulars are normalized. The classified load densities over the years are obtained, a relation equation between the cellular load and the classified load densities is set up, and the load density is obtained through the least square method. A spatial load is forecasted, the size of the spatial load in a target year is forecasted according to the obtained index of the classified load densities, and the load value of each class cellular is further worked out.

The invention relates to a method and a device for detecting bituminous mortar damage self-healing performance. The method includes pressing two bituminous mortar test samples for a while to form a self-healing test piece; stretching the self-healing test piece unidirectionally at the same strain rate; and determining change situation of tensile strength of the test piece since the test piece is healed by itself so as to evaluate self-healing performance of the bituminous mortar. By the method, self-healing performance of bituminous mortar can be evaluated quantitatively. As the corresponding device for detecting bituminous mortar damage self-healing performance is provided, defect in research on self-healing performance of bituminous and mixture thereof is overcome. In addition, the method can be used for detecting bituminous mortar test pieces with different proportions, the self-healing process of bituminous mortar can be simulated vividly on conditions of different test temperature, healing time and pressure, the method is simple and practical, the device is simple in structure, the whole detecting process can be controlled by computers, personal error is low, and detecting results are real and accurate.

The invention discloses a synchronous data acquisition system used in a wind tunnel based on stable dynamic pressure control. The data acquisition system comprises a pressure sensor, a pressure acquisition system, an aerodynamic force balance unit, an aerodynamic force acquisition system, a standard pressure source, an industrial personal computer (IPC), a stable dynamic pressure sensor, an accuracy control device, an aerodynamic parameter system and a motor fan, wherein, the pressure sensor measures the pressure in the low-speed wind tunnel and transmits the measured pressure value to the pressure acquisition system; the aerodynamic force balance unit measures aerodynamic force on an experimental model and outputs the measured aerodynamic force value to the aerodynamic force acquisition system; the standard pressure source respectively calibrates the pressure sensor, the pressure acquisition system and the stable dynamic pressure sensor so as to obtain calibration factors, the calibration factors are transmitted to the IPC so as to obtain a controlled process mathematical model for stable dynamic pressure control, and then the controlled process mathematical model is transmitted to the accuracy control device; the accuracy control device drives the pressure acquisition system, the aerodynamic parameter system and the aerodynamic force acquisition system to perform synchronousdata acquisition; the stable dynamic pressure sensor acquires variation of a flow field in the low-speed wind tunnel, and then the variation value is transmitted to the IPC; and the IPC controls the motor fan to rotate. The data acquisition system disclosed by the invention has the advantages that manpower is saved, high-accuracy data can be obtained, the operating method is simple and practical,the cost is low and the application prospect is wide.

The invention discloses a non-destructive identification method for a material of an integral coil of a distribution transformer. The non-destructive identification method based on the difference of attenuation coefficients of copper, steel and aluminum to X rays includes photographing the distribution transformer in a integral state by the X rays; measuring blackness of photographed negative films of the rays by a black and white densitometer; inputting measured blackness values into a computer; and computing X-ray attenuation coefficient and transillumination thickness curves, which are stored in the computer, of the copper, the steel and the aluminum corresponding to different X-ray tubes and comparing the X-ray attenuation coefficient and transillumination thickness curves with a characteristic curve of the industrial ray films, and judging whether the winding coil of the distribution transformer is made of the aluminum or the copper.

Disclosed are a feed quantity measuring method and a feed quantity monitoring device for a combine harvester. The feed quantity measuring method is characterized in that threshing efficiency is measured by means of roller speed measurement and roller torque measurement, and real-time measurement of feed quantity of the combine harvester is achieved by technically fusing advancing speed data of the harvester and crop yield data. The feed quantity is detected by indirectly measuring crop yield, rotational speed of a threshing roller, torque of the threshing roller and advancing speed of the harvester. A crop yield measuring device is capable of obtaining the time lagged crop feed weight value and comparing the value with average ratio of grain to straw and the harvester advancing speed datameasured by a combine harvester advancing speed measuring device to obtain actual feed quantity, a roller speed measuring device and a roller torque measuring device are capable of measuring rotational speed and torque of the roller to obtain real-time power of the threshing roller, and finally a vehicular computer fuses the measurement values to determine the feed quantity of the combine harvester in real time.

The invention discloses a multi-image super-resolution method based on depth information; the method comprises the following steps: a, obtaining a group of low-resolution images of different reference viewpoints in a same scene and a corresponding group of depth images in a same resolution; b, using depth information to determine parallax sizes of each pixel projected to assigned viewpoint positions in the image of each reference viewpoint, thus obtaining the position of the pixel in the assigned viewpoint; c, projecting the low-resolution image of the reference viewpoint to the assigned viewpoint, and fusing information of all images so as to obtain a high-resolution image. The multi-image super-resolution method can replace an image registering method in a corresponding super-resolution technology in the prior art, is good in super-resolution effect, simple and practical, and has very strong universality.

The invention relates to a preparation method of a nano fiber containing TiO2/WO3 heterojunction. The preparation method comprises the following steps of (1) adding soluble titanium salt into a mixed solvent of PVP (Poly Vinyl Pyrrolidone), absolute ethyl alcohol and acetic acid, and obtaining inorganic TiO2 nano fiber by adopting an electrostatic spinning and calcining method; and sequentially adding H2O2 and H2O in tungstic acid powder, and obtaining colorless and transparent WO3 sol; (2) preparing TiO2 nano fiber containing WO3 seed crystal by adding the TiO2 nano fiber into the WO3 sol; and (3) adding the WO3 sol, HMT (Hexamethylenetetramine) and water into the TiO2 nano fiber containing the WO3 seed crystal, and keeping warm for 6-12 hours under 120-180 DEG C; and drying a product which is obtained after hydrothermal in low temperature after centrifuging and water washing, and thus obtaining the nano fiber containing the TiO2/WO3 heterojunction can be obtained. The preparation method disclosed by the invention is simple and practical, the composition of the TiO2 and the WO3 is more uniform and fuller, a large amount of contact interfaces can be formed, and the catalyzing ability can be increased.

The invention provides a test method for a ditching towing tank of a fixed-wing airplane model. The method is characterized by comprising the steps of a, testing and mounting a testing device and the fixed-wing airplane model; b, testing by the steps of recording the movement posture, the acceleration change condition of the head, middle and tail part, and the pressure change after the bottom is in contact with water, of the model through a gyro, an acceleration sensor and a pressure sensor in the model during the test, recording the movement of the fixed-wing airplane model (9) separated from the testing device through a video type recorder, including the change condition of water lines of the model after entering water, reachwater sliding condition, and static floating in water. The method has the advantages of being practical, feasible, simple to operate, reliable in test result, and wide in applicable scope.