118results about How to "Strong use value" patented technology

The invention relates to a specific group discovery and expansion method based on microblog data, and belongs to the field of social network analysis and data mining. The specific group discovery and expansion method comprises the following specific steps: collecting relevant group information; carrying out information integration and mapping; aiming at text data to carry out characteristic extraction; calculating a user similarity degree; carrying out the self-detection of a category group; and extracting the attributes of the specific group, judging a category, and carrying out group expansion. The specific group discovery and expansion method artfully avoids the problem that group identification can not be carried out since data is sparse or incomplete when a network model is used, inputs large-scale data calculation and is high in stability.

The invention relates to a method for detecting suspected online water armies for microblog, and belongs to the technical field of computer application. The method for detecting suspected online water armies for the microblog comprises the following six steps: correspondingly related microblog data collecting; data preprocessing; user characteristics extracting; training set building; water armies detection model training; and unlabeled data predicting and distinguishing. Compared with the prior art, the method for detecting suspected online water armies for the microblog has the advantages that the full utilization of the data is realized, the group discovery is conducted conveniently and quickly, a complicated classification detection model is not needed to be established, so that the complexity of an algorithm is reduced, the modularity of the algorithm is relatively high, the algorithm can be put into large-scale data for calculation, and the stability is relatively high; a single user can be conducted on online water armies detection, a group of users in a certain event can be identified, the modularity of the method is extremely high and the method can be stably applied to large-scale data calculation framework.

The invention discloses a method for predicting a time sequence of number of people served by base stations based on space-time transfer probabilities of mobile phones. The method comprises the following steps: calculating the total number of people within base station service areas of the mobile phones within an equal time period by using space-time orbit data of the mobile phones; dividing people moving orbits by using the space-time orbit data of the mobile phones, and calculating the number of people coming back and forth between the base stations within adjacent time periods in a research area; based on related theory of Bayesian and Markov chains, calculating the transfer probabilities of mobile phone users within target base stations to occur in the base stations at a current moment according to historical data; calculating the transfer probabilities of the mobile phone users within the target base stations to occur in the base stations within different time periods to construct a complete space-time transfer probability matrix in the research area; and predicting the number of people served within the base station ranges of the mobile phones in the research area with the relatively stable total number of people by using the complete space-time transfer probability matrix. The method disclosed by the invention has the advantages of low data acquisition cost, simple model structure and high prediction efficiency.

The invention features the following points: at a preset modulation mode, for different transmission mode, calculating different equivalent SNR for each substream; then according to the SNR-instantaneous capacity curve, acquiring the instantaneous channel capacity on the subcarrier on each subcarrier wave; then according to the instantaneous channel capacity, figuring out the instantaneous average value of the current channel capacity on different transmission mode; according the average value, figuring out the channel capacity running average value; the corresponding transmission mode is selected by whether or not the running average value satisfies a preset lowest threshold.

The invention relates to a digital camera projection center position precision calibration method based on a photogrammetric technology, and aims at effectively solving the problems of high precision and operability. The method comprises the steps that a return light reflection measurement mark, a control point mark, an encoding mark, a directional target and a standard ruler are laid to form a calibration field; an electronic theodolite and a to-be-inspected camera are arranged at the position 3 meters away from the calibration field, and the return light reflection measurement mark is stuck to a camera lens; the calibration field is photographed by the camera at the different horizontal positions to obtain multiple photos, the calibration field is photographed by the to-be-inspected camera at the different positions in front of the calibration field at different attitudes, and data of the control point mark are extracted from the photos to form calibration data; the coordinates of a central image point of the control point mark are corrected and resolved to obtain three projection center positions. According to the method, control point mark image center measurement, high-precision camera calibration and projection center precision measurement can be integrally achieved, and the calibration precision of the projection center positions is higher than 5 mm.

The invention discloses a preparation method and an application for a metal ion neutral-meson morpholine molecularly imprinted polymer. The method comprises the following steps of: (1) adding morpholine, 4-vinyl pyridine, metal cobalt (II) ions, dimethyl sulfoxide and acetonitrile in a container, ultrasonically preparing prepolymerization solution, standing, then adding EDMA (ethylene glycol dimethacrylate) and AIBN (2,2-azobisisobutyronitrile), charging argon, uniformly mixing, sealing, and reacting for 24 hours in a 60 DEG C water bath; and (2) after polymerization is finished, grinding, sieving, settling by using methyl alcohol and acetone, then eluting template molecule morpholine by using a solvent, and drying in vacuum. The morpholine molecularly imprinted polymer obtained by the method disclosed by the invention has high selective absorption capacity to the morpholine molecules, can be used for solid-phase extraction of morpholine, and is applicable to the needs of some special occasions.

The invention provides an electric field sensor dynamic test calibration device. The device comprises a shielding box; an electric field generation component which is fixed in the shielding box and used for generating an electric field; a movement control component which is fixed in the shielding box and realizes adjustment of the position and the attitude of an electric field sensor to be tested; a data acquisition component which is electrically connected with the movement control component and the electric field sensor to be tested and used for acquiring the data related to output of the electric field sensor to be tested and the movement attitude of the sensor to be tested; and an analysis control system which is electrically connected with the movement control component and the data acquisition component and used for processing and analyzing the position, attitude control and the data of the sensor to be tested. Automatic dynamic test calibration can be performed on one-dimensional, three-dimensional and micro structures of electric field sensors so that the electric field sensor dynamic test calibration device has the characteristics of being multifunctional, efficient and easy and convenient to operate and can better meet the application requirements.

The present invention relates to a spatial layering disturbance gravitational field grid model rapid construction method which can effectively solve the problem of obtaining the disturbance gravitation of earth's any height level rapidly and at a high precision. The method comprises the following steps of modifying a conventional integration formula into a convolution form to calculate rapidly by utilizing a convolution theorem; calculating the low-order model gravity anomaly and the residual gravity anomaly to obtain the residual gravity anomaly; carrying out the Fourier transform and the inverse transformation thereof to obtain a residual disturbance gravitation value; calculating a low-order model disturbance gravitation and a final disturbance gravitation to obtain the final disturbance gravitation; comparing a disturbance gravitation precision with a calculation efficiency, at the same time, comparing the efficiency difference with a conventional method. The method of the present invention is easy to operate and apply, can effectively solve the problem of obtaining the disturbance gravitation of earth's any height level rapidly and at the high precision, facilitates the rapid and real-time positioning and control of various spacecrafts when the spacecrafts move, guarantees the safety of the spacecrafts, and possesses a very strong use value.

The present invention provides a method for controlling position and speed on the basis of high-order S motion trajectory belonging to the field of precision motion control, and the method is used to solve the problem that a method for controlling position and speed by utilizing a traditional trajectory planning algorithm has the poor portability. The controlling method includes the steps as follows: 1. calculating out the value S<N>(k) of a Nth-order S curve in each segment point according to a limit value Sm<N>of the Nth-order S curve; 2. calculating out the time value T(k) corresponding to the kth segment point and the value S<n>(k) of the nth-order S curve in the kth segment point; 3. sampling the S curve having the confirmed T(k) and S<n>(k) so as to acquire the planned Nth-order S motion trajectory; 4. and controlling position and speed by utilizing the sampling value of position and the sampling value of first derivate of position according to the planned Nth-order S motion trajectory. The method is used for controlling position and speed of a motion mechanism.

The present invention relates to an electrochemical luminescence sensor array. The array consists of 4-20 sensor units integrated on a same substrate; the sensing units comprise a synthetic sex hormone sensing unit and two blank sensing units; the synthetic sex hormone sensing unit includes a base, a molecular imprinting membrane modified on the substrate and a conductive wire; the molecular imprinting membrane consists of the following materials: a template molecule, a functional unit, a crosslinking agent, a solvent, and a photo-initiator agent in the molar ratio of 1:3 -5:7-9:13-16:1; and the template molecule is a variety of synthetic sex hormones to be detected. The invention also relates to a preparation method and application of the sensor array to detection of synthetic sex hormone. The electrochemical sensor array achieves simultaneous analysis of multiple targets, reduces the interference of matrix on the test results, and has high detection reliability and easy operation; and the sensor array is easy to assemble and adjust, and can be used in environmental monitoring, food safety and other fields.

The invention relates to an algal toxin molecular imprinting chemoreceptor sensor. The sensor comprises a three-electrode system, wherein a glassy carbon electrode is a work electrode, a platinum wire electrode is an auxiliary electrode, and Ag/AgCl is a reference electrode; the glassy carbon electrode is modified with an algal toxin molecular imprinting film which comprises algal toxin mixed template modules, function monomers, crosslinking agents and photoinitiators in the mole ratio of 1: (20-50): (10-20): (0.5-1.5). The invention further relates to a preparation method of the sensor and an application of the sensor for analysis and detection of content of algal toxin in water. The sensor is used for analysis and detection of the algal toxin in the water, operation is convenient and fast, the flexibility is high, the operation cost is low, and the sensor is easy to control and automatic, can be used for quick screening of algal toxin in the water and has high use value in fields of environment monitoring and safety control of drinking water.

The invention discloses a high-speed image analyzing and video generating technology based on a plug-in technology. The high-speed image analyzing and video generating technology based on the plug-in technology comprises the following steps of (A) designing a uniform interface by using plug-in, converting RAW (read after write) files with different formats into a uniform and standard RAW file structure and uniformizing data interfaces; (B) preprocessing the RAW files, selecting different image conversion and output formats according to demands of a user and judging whether images are zoomed or not, watermarks are added or not and videos are generated or not; and (C) processing RAW images and beginning to processing the RAW files according to the demands of the user after the demands of the user are confirmed. The RAW files serve as an object, and a software technology of quickly converting the different RAW files into appointed image formats and generating videos is realized by using unique plug-in and a double-cache technology. By the plug-in technology, the RAW image files with different formats can be analyzed, application of software is expanded, and the universality of the software is improved; and by the double-cache technology, data reading and data processing are circularly carried out in a crossed manner, and the software analyzing efficiency is greatly improved.

The invention features the following points: for SISO (single-input, single-output) OFDM system and MIMO (multi-input, multi-output) OFDM system, in case of already completing coarse frequency offset estimation and selecting the optimal cyclic prefix interception position, the frequency domain pilot frequency is inserted into the certain sub-carrier wave position of each OFDM symbol, by which the time domain waveform c*(n) is figured out in order to make the waveform correlate with the value of time domain corresponding to the no. j OFDM symbol in the no. i antenna; so the scalar phase angle after correlating can be figured out; combining the antenna combination for the phase angle to get the average phase angle by which the difference between two neighboring OFDM symbols can be acquired, and further more the instantaneous frequency offset estimation value can be acquired; making smoothed filter for the instantaneous value to the accurate frequency estimation value.

The invention relates to a powder solidifying and heating device applied to a container, which is characterized by comprising at least one heating unit; the heating unit comprises a bracket and a heating component; the bracket comprises a first section providing a mounting surface; a plurality of heating components are arranged on the mounting surface of the first section according to a first preset interval; the bracket and the heating components are made from high temperature resistant material, and the heating components are strong infrared radiation heating components; the radiation area of the heating components arranged on the mounting surface of the first part corresponds to a local region of the container. The invention also relates to a heating system comprising the heating device.

The invention relates to a method for electromagnetically nondestructively detecting metal surface cracks by a multi-frequency exciting field array. The method comprises the following steps: (1) generating a standard defect on the center of a to-be-detected test piece; (2) connecting an exciting apparatus and the to-be-detected test piece, and establishing a detection model; (3) acquiring a component when a coil is excited, extracting a detection signal of each data, performing the empirical mode decomposition by using EMD to obtain an eigenmode functional signal; and (4) according to the component data characteristics, precisely identifying an angle, an axial length, a peripheral length and a radial length of a crack defect, and calculating an actual size of the defect. A U-shaped magnetic yoke wound on an electrification rectangular coil is used for magnetizing the to-be-detected component to excite a defect leakage magnetic field, the disturbance signal of a magnetic field above thedefect can be acquired, the metal surface defect is detected and identified, the reliability of a detection result can be improved, and the application value for the electromagnetic nondestructive detection of the test piece with complicated defect shape is relatively high.

The invention belongs to the technical field of charging pile devices, and particularly discloses a new energy vehicle charging pile with a refrigerating device. The charging pile comprises a chargingpile body. A first semiconductor refrigerating sheet is arranged on the charging pile body and fixedly provided with a first cooling fan. A second shielding plate and an air inlet pipe are verticallyarranged on the right side wall of the charging pile body. A controller and a temperature sensor are vertically arranged on the left side wall of an inner cavity of the charging pile body. Thermal conduction blocks are symmetrically arranged on the left side wall and the right side wall of the inner cavity of the charging pile body. The first semiconductor refrigerating sheet is located in innercavities of the heat conduction blocks. An air blower is fixedly arranged at the bottom of the inner cavity of the charging pile body. A thermal insulation plate and a thermal insulation cotton layerare arranged in a side wall cavity of the charging pile body in left-right symmetry. A second semiconductor refrigerating sheet is fixedly arranged on the air inlet pipe. The charging pile is simple in structure, has a quite good cooling effect and can be rapidly cooled.

The invention discloses a multi-camera cooperative figure tracking system and tracking method based on space consistency, and the system comprises a video monitoring system which comprises a pluralityof cameras and is used for collecting video information; a host server which is connected with the video monitoring system through network equipment and is used for receiving video information and carrying out video analysis; a central server which is connected with the host server through network equipment and is used for receiving the video analysis data and forming an analysis report after deep learning; and a client which is connected with the central server through network equipment and interacts with the central server through the Internet or a local area network.

The invention relates to a breeding method for a transgenic mouse with conditional knockout of lncRNA DLX6-os1. The purpose is effectively achieved that the transgenic mouse as an animal model adaptsto different tissue organs for studying the effects of the lncRNA. A Dlx6-os1 conditional knockout carrier, the Dlx6-os1 gene, a transcript Dlx6-os1-201 ENSMUST00000159568.5 and three exons located ata chromosome 6 of the mouse are constructed, and the three exons are used as a conditional knockout area; a BAC clone of RP24-276P7 and RP24-260F14 in a C57BL/6 mouse gene library is used as a template for PCR operation; in the purpose carrier, a self-deleting anchoring locus is inserted beside an Neo locus, an loxP locus is inserted beside the gene knockout area, and DTA negative selection is conducted; a gene mediated with a Cre enzyme is recombined, and a gene knockout plasmid carrier is obtained; the gene knockout plasmid carrier is transferred into an ES cell and hybridized with multipletransgenic mice with the Cre enzyme in different organs, and positive mice with the reduced expression level of the DLX6-os1 in different organs are obtained. The method is suitable for studying theeffects of the lnc RNA in different tissue organs, and a new way for diabetes diagnosis and treatment is developed.

The invention provides a method for separating and purifying human amniotic fluid-derived mesenchymal stemcells from discarded supernatant of prenatal diagnosis amniotic fluid culture. The cells are fibroblast-like amniotic fluid-derived mesenchymal stemcells obtained by extremely low-density cultivation in a specific culture medium, have multi-directional differentiation capability, have high amplification capability in comparison with adult cells and can maintain the original characteristics in 15 generations. The method has the main advantages that: (1) raw materials of the method are readily available and have no ethical tissues and an extremely high use value; (2) the cells obtained by using the method have high amplification capability, can maintain the characteristics in 15 generations and have the multi-directional differentiation capability; (3) the cell producing method of the invention is simple and high in efficiency, flow type and magnetic bead separation and purification processes and other separation and purification processes are not required, and the cost for obtaining the high-purity human amniotic fluid-derived mesenchymal stemcells is greatly reduced; and (4) the cells of the invention are applicable to tissue engineering, cell treatment and medicament screening and are suitable to be used as seeded cells of the tissue engineering.

The invention discloses a domestic carpet pressure light-emitting weighing system, and belongs to the technical field of carpets. The weighing system comprises a non-slip rubber layer, wherein an elastic layer is arranged at the top of the non-slip rubber layer; a bamboo charcoal fiber layer is arranged at the top of the elastic layer; a pressure sensor is arranged at the top of an inner cavity ofthe bamboo charcoal fiber layer; a waterproofing layer is arranged at the top of the bamboo charcoal fiber layer; a leather layer is arranged at the top of the waterproofing layer; a light emitting diode is arranged at the top of an inner cavity of the leather layer; and a protective layer is arranged at the top of the leather layer. The weighing system provided by the invention is simple in structure, convenient to use and reasonable in design; the carpet has a weighing function; the carpet is quite strong in flexibility and durability and can achieve effects of decorating, preventing slipping and protecting environment; the carpet, which is provided with the light emitting diode therein, can emit light as being stamped on; the carpet, under the action of a delay circuit module, can automatically turn off when there is no person; and night lighting can be achieved; therefore, the weighing system is relatively strong in application value.