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118results about How to "Strong use value" patented technology
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Specific group discovery and expansion method based on microblog data
InactiveCN105653518AAvoid sparsityAvoid imperfectionData processing applicationsCharacter and pattern recognitionFeature extractionMicroblogging
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.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Rescuer indoor cooperated positioning device and method
InactiveCN103994767AReduce usageStrong use valuePosition fixationNavigation by speed/acceleration measurementsMicrocontrollerMicrocomputer
The invention provides a rescuer indoor cooperated positioning device and a method. A system comprises at least three inertial navigation positioning devices, a plurality of single chip microcomputers, a plurality of ZigBee wireless sensor network nodes, a plurality of GPRS modules, and a remote server. The inertial navigation positioning devices are separately disposed on at least three rescuers. All the rescuers are provided with one of the single chip microcomputers, one of the ZigBee wireless sensor network nodes and one of the GPRS modules. The inertial navigation positioning devices are carried by some of the rescuers, thus achieving indoor positioning. A real-time positioning network is formed through a ZigBee wireless sensor network, and position data is provided for other rescuers not carrying the inertial navigation positioning devices in a rescuing site. When a rescuer can verify the position of himself or herself, the position information can be corrected and the precision of a dynamic positioning network can be corrected. A headquarter can know the positions and distribution of the rescuers on the site in real time, and the rescuers can known the position information of themselves and their teammates, thus increasing the disaster rescuing efficiency so as to guarantee human safety.
Owner:NORTHEASTERN UNIV
Method for detecting suspected online water armies for microblog
InactiveCN106940732AImprove accuracyStrong use valueData processing applicationsWeb data indexingModularityGroup discovery
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.
Owner:NAT COMP NETWORK & INFORMATION SECURITY MANAGEMENT CENT
Method for predicting time sequence of number of people served by base stations based on space-time transfer probabilities of mobile phones
ActiveCN106792517ASimple structureLower acquisition costsForecastingLocation information based serviceTransfer probabilityTransition probability matrix
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.
Owner:WUHAN UNIV
Self-adaptive method for carrying out multiple input/output OFDM link through capacity
InactiveCN1917497AReduce bit error rateImprove data throughputDiversity/multi-antenna systemsMulti-frequency code systemsCurrent channelSignal-to-noise ratio (imaging)
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.
Owner:TSINGHUA UNIV +1
Digital camera projection center position precision calibration method based on photogrammetric technology
InactiveCN105424058AAchieve precise calibrationExcellent positioning accuracyMeasurement devicesCamera lensTheodolite
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.
Owner:THE PLA INFORMATION ENG UNIV
Preparation method and application of metal ion neutral-meson morpholine molecularly imprinted polymer
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.
Owner:JISHOU UNIVERSITY
Electric field sensor dynamic test calibration device
ActiveCN106125028AGet Static Performance IndicatorsImprove test efficiencyElectrical measurementsMicro structureElectric field sensor
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.
Owner:INST OF ELECTRONICS CHINESE ACAD OF SCI
Spatial layering disturbance gravitational field grid model rapid construction method
InactiveCN104834320ARapid positioningQuick controlTarget-seeking controlMassive gravityGravity anomaly
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.
Owner:THE PLA INFORMATION ENG UNIV
Method for controlling position and speed on the basis of high-order S motion trajectory
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.
Owner:HARBIN INST OF TECH
Method for extracting fault signal feature information of aero-engine rotor system
The invention discloses a method for extracting the fault signal feature information of an aero-engine rotor system, and the method comprises the steps: collecting a rotor rub-impact vibration signal,and carrying out the FDM decomposition of the collected rotor rub-impact vibration signal to obtain complete rotor rub-impact vibration signal FIBFs components; constructing a Hankel matrix of the rotor rub-impact vibration signal after noise reduction, and drawing a singular value curve of the rotor rub-impact vibration signal after noise reduction; determining a singular value catastrophe point, carrying out the reconstruction of an order number, and carrying out the envelope spectrum analysis, thereby achieving the effective extraction of fault information. According to the invention, themethod achieves the reasonable extraction of the fault feature frequency of a rotor system based on the FDM decomposition and singular value differential spectrum analysis, and achieves the efficientfiltering of the noise signal component in the rub-impact vibration signal, thereby achieving the extraction of the weak fault feature information from the low-frequency strong noise background, and achieving the effective extraction of the fault information.
Owner:NANCHANG HANGKONG UNIVERSITY
Electrochemical luminescence sensor array, and preparation method and application thereof
InactiveCN104849262AEasy to identifyReduce distractionsChemiluminescene/bioluminescenceSensor arrayPhysical chemistry
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.
Owner:NINGBO UNIV
TCAS system fault comprehensive diagnosis method and system based on Bayesian decision tree
InactiveCN104076813AImprove maintainabilityStrong use valueElectric testing/monitoringElectrical resistance and conductanceElectronic systems
The invention discloses a TCAS system fault comprehensive diagnosis method based on a Bayesian decision tree. The TCAS system fault comprehensive diagnosis method comprises the following steps that firstly, the fault decision tree is used for decomposing airplane electronic system faults, and a measuring method is provided; secondly, according to requirements of a measured or controlled object, parameter information such as a voltage, a current, frequency, a harmonic wave and resistance are collected, and analog-to-digital conversion is carried out; thirdly, feature extraction is carried out on the voltage, the current and the frequency, and state information of devices is obtained according to measurement of extracted power source quality features or the voltage or the resistance; fourthly, the faults of each device are judged with a statistics-based Bayesian decision method; fifthly, the object-oriented decision tree is applied to inference of fault locations, the faults are removed one by one, and fault positioning is carried out; sixthly, a detection result is output. Possible hidden dangers of an airplane can be detected while the faults are removed, and a TCAS electronic system fault diagnosis system with an industrial control computer serving as a host computer is achieved.
Owner:CHINESE AERONAUTICAL RADIO ELECTRONICS RES INST
Algal toxin molecular imprinting chemoreceptor sensor as well as preparation method and application thereof
ActiveCN104792852AImprove stabilityLow costMaterial electrochemical variablesSafety controlAuxiliary electrode
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.
Owner:永春县产品质量检验所福建省香产品质量检验中心国家燃香类产品质量监督检验中心福建
Doxorubicin hydrochloride magnetic nanoparticles and preparation method thereof
ActiveCN106265514AStable in natureImprove stabilityOrganic active ingredientsEnergy modified materialsFreeze-dryingMagnetite Nanoparticles
The invention discloses a preparation method of doxorubicin hydrochloride magnetic nanoparticles. The preparation method comprises the following steps: (1) dissolving nano block polymer polyethylene glycol-polylactic acid in dimethyl formamide to prepare a solution A; (2) dissolving doxorubicin hydrochloride in dimethyl formamide to prepare a solution B; (3) adding triethylamine into the solution B, and performing the deionization ultrasonic dissolving on the doxorubicin hydrochloride; (4) dissolving ferroferric oxide powder in tetrahydrofuran, and ultrasonically dispersing to obtain a solution C; (5) dropwise adding the deionized solution B into the solution A under a stirring condition; (6) stirring and uniformly mixing the doxorubicin hydrochloride and nano blocks, and volatilizing organic solvent to obtain medicine carrying micelle; (7) dropwise adding the solution C into the medicine carrying nano micelle obtained in the step (6), and uniformly stirring; (8) dialyzing to obtain magnetic medicine carrying nano micelle; and (9) adding a freeze drying protective agent into the nano micelle to obtain the magnetic medicine carrying nanoparticles. The method is simple in operation procedures and easy in operation.
Owner:SHANDONG UNIV QILU HOSPITAL
High-speed image analyzing and video generating technology based on plug-in technology
ActiveCN104243886AImprove analysis efficiencyImprove general performanceTelevision system detailsColor television signals processingSoftware technologyData processing
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.
Owner:NO 27 RES INST CHINA ELECTRONICS TECH GRP
Accurate method for estimating frequency deviation of inseting constant pilot carrier in orthogonal frequency division multiplex system
InactiveCN1917496AImprove performanceStrong use valueMulti-frequency code systemsMulti inputWave shape
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.
Owner:TSINGHUA UNIV
Powder curing heating device for container and heating system
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.
Owner:罗地明
Method for electromagnetically nondestructively detecting metal surface cracks by multi-frequency exciting field array
ActiveCN108982652ARealize signal acquisitionImprove reliabilityMaterial magnetic variablesDecompositionMagnetic field perturbation
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.
Owner:NORTHEASTERN UNIV
New energy vehicle charging pile with refrigerating device
InactiveCN109501617AReduce heatAct as a sunshadeCharging stationsElectric vehicle charging technologyNew energyThermal insulation
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.
Owner:江苏汇鑫新能源汽车科技有限公司
Bio-based fully-degradable plastic masterbatch as well as preparation method and application thereof
ActiveCN107488298AHas multiple degradation effectsPromote degradationCultivating equipmentsPlant protective coveringsBiomass carbonMasterbatch
The invention provides bio-based fully-degradable plastic masterbatch as well as a preparation method and application thereof. The bio-based fully-degradable plastic masterbatch is prepared by carrying out extrusion and granulation on a mixed material; the mixed material is prepared from hydrophobic modified starch, matrix resin, an oxidative degradation additive and a biodegradable auxiliary, wherein the mass ratio of the hydrophobic modified starch to the matrix resin is (60 to 80) to (20 to 40), the mass of the oxidative degradation additive accounts for 1 to 20 percent of the total mass of the hydrophobic modified starch and the matrix resin, and the mass of the biodegradable auxiliary accounts for 1 to 10 percent of the total mass of the hydrophobic modified starch and the matrix resin. The modified starch of the plastic masterbatch disclosed by the invention has obvious hydrophobicity, and the compatibility of the starch and plastic polymer requiring degradation can be improved, so that the content of biomass carbon in the plastic to be degraded is increased, and the production processing cost is effectively reduced. The oxidative degradation additive and the biodegradable auxiliary are added in the bio-based masterbatch disclosed by the invention, so that the bio-based masterbatch has multiple degradation effects, the effects of the bio-based masterbatch are superior to the effects of existing starch masterbatch, and the application is wide.
Owner:四川妙顺环保科技集团有限公司
A kind of bio-based fully degradable plastic masterbatch, its preparation method and application
ActiveCN107488298BHas multiple degradation effectsPromote degradationCultivating equipmentsPlant protective coveringsMasterbatchBiomass carbon
Owner:四川妙顺环保科技集团有限公司
Method for detecting weak and small target based on space-time partial differential equation
ActiveCN104616299AWeak geometryWeakImage enhancementImage analysisPattern recognitionMatrix differential equation
The invention discloses a method for detecting a weak and small target based on a space-time partial differential equation. The method comprises the steps of (1) reading adjacent three frame images with image sequence to be processed; (2) initializing parameters w and calculating the time-space gradients of the images by the formula in the specification; (3) predicating the backgrounds of the images through the space-time partial differential equation; (4) differentiating the current frame image and the background predicating result to obtain the detection result of the weak and small target. According to the method, the background of a far infrared image is predicated through the space-time partial differential equation, and thus the weak and small target can be detected through the algorithm; the method provides technical support to image guidance, safety monitoring, and space monitoring, and is relatively high in practical value.
Owner:NANJING UNIV OF POSTS & TELECOMM
Tobacco rod weight control method and device based on microwave source
InactiveCN102283438ANo pollutionImprove work performanceCigarette manufactureMicrowaveControl signal
The invention discloses a tobacco rod weight control method and device based on a microwave source, which comprises: a cigarette machine simulation unit, a cigarette rod weight signal acquisition and control unit, a bottom board communication control unit and a host computer unit. The cigarette machine simulation unit imitates the microwave source probe to generate the analog signal of tobacco rod density, and automatically adjusts the mean value and phase of the tobacco rod density analog signal according to the chopper control signal; the tobacco rod weight signal acquisition and control unit samples the tobacco rod density analog signal, Automatically adjust the chopper control signal, and count the cigarette index; the bottom board communication control unit is used to connect the data communication between the upper computer unit and the cigarette rod weight signal acquisition and control unit; the upper computer unit is used to monitor the cigarette rod weight signal acquisition and Control unit health. The invention is applied to the tobacco rod production process of a high-speed cigarette machine, and can realize functions such as the control of shredded tobacco density and weight of cigarettes, detection and elimination of faulty cigarettes, statistics of cigarette indicators, and the like.
Owner:XIDIAN UNIV
Multi-camera cooperative figure tracking system based on space consistency and training method
ActiveCN111681269AImprove the situationReduce labor costsImage enhancementImage analysisVideo monitoringThe Internet
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.
Owner:长春博立电子科技有限公司
Breeding method for transgenic mouse with conditional knockout of lncRNA DLX6-os1
PendingCN110117616AOpen up new avenuesStrong use valueStable introduction of DNANucleic acid vectorExonConditional gene knockout
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.
Owner:THE FIRST AFFILIATED HOSPITAL OF ZHENGZHOU UNIV
Method for separating and purifying human amniotic fluid-derived mesenchymal stemcells
InactiveCN101948798AEasy access to raw materialsStrong use valueEmbryonic cellsGerm cellsTissue engineeringBiology
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.
Owner:ZHEJIANG UNIV
High-capacity orbital angular momentum hybrid multiplexing communication method and test method thereof
ActiveCN111147135AImprove communication capacityIncrease speedFree-space transmissionMultiplexingGaussian beam
The invention relates to a high-capacity orbital angular momentum hybrid multiplexing communication method and a test method thereof. The test method comprises the following steps: performing orbitalangular momentum multiplexing, polarization division multiplexing and frequency division multiplexing on multiple paths of vortex optical signals generated by Gaussian beams in sequence to synthesizeone path of optical signals; emitting the multiplexed optical signal to atmospheric turbulence, wherein the atmospheric turbulence is simulated by a multi-layer phase screen; and measuring the parameters of the communication. Compared with the conventional technology, the communication method provided by the invention can improve the communication capacity and rate.
Owner:SOUTH CHINA NORMAL UNIVERSITY
Protection method and device for protecting three-way joint meters of concrete-faced rockfill dams
PendingCN109596113AEffective protectionGive full play to the role of monitoringSurveying instrumentsSocial benefitsSheet steel
The invention discloses a protection method and device for protecting three-way joint meters of concrete-faced rockfill dams. According to the method and device, reinforced concrete is poured around athree-way joint meter to form protection piers; protection pier cover plates which are concrete structures are arranged at the tops of the protection piers; each protection pier cover plate is formedby a plurality of small cover plates through arrangement; a layer of steel plate is arranged outside each protection pier; the steel plates are firmly combined with the protection piers through anchor bolts; a layer of rubber pad is arranged outside of each steel plate; and the rubber pads are firmly adhered to the steel plates through SK313 glue. The protection device is capable of effectively protecting three-way joint meters mounted at the fields to give full play to the monitoring effect, and has relatively strong using value and relatively good social benefit and economic benefit.
Owner:CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
Domestic carpet pressure light-emitting weighing system
InactiveCN108618555AGood flexibilityIncreased durabilitySpecial purpose weighing apparatusFloor carpetsEnvironmental resistanceComputer module
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.
Owner:TIANJIN TIANRUI CARPET
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