3014results about How to "Good practical value" patented technology

The invention discloses fluororesin radiating paint and a preparation method thereof. The paint mainly comprises an electron transfer type organic compound, graphene, a carbon nanotube, titanium white, other additives and fluororesin, wherein the fluororesin is a paint brand having the highest comprehensive property at present; the electron transfer type organic compound can greatly enhance the thermal radiation rate of the paint; the graphene and the carbon nanotube can further accelerate thermal conduction; and the electron transfer type organic compound, the carbon nanotube and the graphene finally form a full three-dimensional network distribution of granules (electron transfer type organic compound), wires (carbon nanotube) and planes (graphene) in a fluid. The fluororesin radiating paint disclosed by the invention has high thermal radiation rate, high thermal conductivity and low thermal resistance, can realize radiation cooling, and simultaneously has the effects of self cleaning, acid/alkali resistance and super high insulativity, thereby having high practical value.

The invention relates to a three-dimension dynamic face pathetic model construction method based on video flow, which can return the three-dimension face pathetic based on input video flow, wherein the algorism comprises: (1) marking face character point at the first frame of input video; (2) using light stream method of affine correction to track the character point; (3) rebuilding the two-dimension track data based on factor decomposition into three-dimension data; (4 using rebuilt three-dimension date to match general face model, to generate personal face and dynamic pathetic motion; (5) using character face technique to compress the original video; (6) using character face to rebuild input video and projecting dynamic pattern, to compose true virtual appearance. The invention has high time/spatial efficiency and high value.

The invention discloses a three-dimensional gesture estimation method and a three-dimensional gesture estimation system based on depth data. The three-dimensional gesture estimation method comprises the following steps of S1, performing hand region of interest (ROI) detection on photographed data, and acquiring hand depth data, wherein the S1 comprises the processes of (1), when bone point information can be obtained, performing hand ROI detection through single bone point of a palm; (2) when the bone point information cannot be obtained, performing hand ROI detection in a manner based on skin color; S2, performing preliminary estimation in a hand three-dimensional global direction, wherein the S2 comprises the processes of S21, performing characteristic extracting; S22, realizing regression in the hand global direction according to a classifier R1; and S3, performing joint gesture estimation on the three-dimensional gesture, wherein the S3 comprises the processes of S31, realizing gesture estimation according to a classifier R2; and S32, performing gesture correction. According to the three-dimensional gesture estimation method and the three-dimensional gesture estimation system, firstly cooperation of two manners is utilized for dividing hand ROI data; afterwards estimation in the hand global direction is finished according to a regression algorithm based on hand ROI data dividing; and finally three-dimensional gesture estimation is realized by means of the regression algorithm through utilizing the data as an aid. The three-dimensional gesture estimation method and the three-dimensional gesture estimation system have advantages of simple algorithm and high practical value.

The invention discloses a secure certification and transaction method with the combination of a digital certificate and a one-time password. The method comprises two steps of: a secure certification method and a secure transaction method. The secure certification and transaction method specifically comprises the steps of: first, performing bidirectional certification between a client and a server on the basis of the digital certificate; then, realizing secure certification through the combination of the digital certificate and the one-time password on the basis of the bidirectional certification; and finally, realizing secure transaction through the combination of the digital certificate and the one-time password on the basis of the bidirectional certification. By the method, the identities of users are confirmed by combining the digital certificate and the one-time password so as to realize the secure login and secure transaction of various application systems. By the method, the digital certificate and the one-time password are organically combined, so that the safety hidden trouble caused by separately using the digital certificate or the one-time password is avoided, respective security advantages of the digital certificate and the one-time password are fully exerted, various attacks can be resisted, high security is achieved, the demand of various high security application in the network can be met, and the method has higher practical value and broad application prospect in the field of network security technology.

Use of polymorphism site gene to predict ACEI medicine, its method and reagent kit are disclosed. It can be used to determine critical enzyme gene polymorphism site gene typing oligonucleotide and critical enzyme gene polymorphism site gene in cysteine metabolic pathway.

The invention discloses a two-dimensional recursive network-based recognition method of Chinese text in natural scene images. Firstly, a training sample set is acquired, and a neural network formed bysequentially connecting a deep convolutional network, a two-dimensional recursive network used for encoding, a two-dimensional recursive network used for decoding and a CTC model is trained; test samples are input into the trained deep convolutional network, and feature maps of the test samples are acquired; the feature maps of the test samples are input into the trained two-dimensional recursivenetwork, which is used for encoding, to obtain encoding feature maps of the test samples; the encoding feature maps of the test samples are input into the trained two-dimensional recursive network, which is used for decoding, to obtain a probability result of each commonly used Chinese character in each image of the test samples; and clustering searching processing is carried out, and finally, the overall Chinese text in the test samples is recognized. According to the method of the invention, space/time information and context information of the text images are fully utilized, the text imagepre-segmentation problem can be avoided, and recognition accuracy is improved.

The invention provides a hand gesture recognition method based on distance-speed features. The method comprises the steps of 1, adopting a frequency-modulated continuous-wave radar as a gesture sensor, intercepting and arranging received beat signals to obtain a radar echo signal two-dimensional matrix; 2, subjecting the radar echo matrix obtained in the step 1 to two-dimensional FFT respectively along a fast time a dimension and a slow time dimension; 3, based on an R-D graphic sequence, training a convolutional neural network; 4, inputting the real-time R-D sequence into a convolutional neural network model and conducting the recognition test, wherein the test accuracy of the final convolutional neural network is larger than 98%; 5, realizing the operation of a computer terminal and the control of a material object. According to the technical scheme of the invention, the hand gesture recognition is enabled even in the absence of light and without the wearing of a sensor, so that the interaction between the computer terminal and the material object is realized. The real-time detection is additionally conducted, so that the uncertain location problem of data interception is ingeniously solved. The real-time gesture recognition and control is realized. Therefore, the method has better practical value.

The invention belongs to the field of machine learning and privacy protection, and particularly relates to a decision tree classification service system and method supporting privacy protection. The service system comprises a model owner module, a client module, a cloud service module and a ciphertext operation module. The method comprises a preparation stage and a classification stage. The invention provides a decision tree classifier supporting privacy protection orienting cloud encryption data, and designs and implements a decision tree classification service system supporting privacy protection. Original data cannot be recovered through encrypted data uploaded by a user, privacy protection in the outsourcing calculation process is guaranteed, large-scale data are outsourced to a third-party server which is high in storage and calculation resource, local infrastructure investment and management of the user are reduced, and then more economic benefits are generated.

The control system includes VME bus chassis, CPU main board, Ethernet comm interface board (CIB), reflection memory CIB, PROFIBUS CIB, digital signal interface board, analog signal interface board, and electrical motor control board (MCB). Boards and cards are inserted to backboard inside the VME bus chassis. Through VME bus, boards and cards in backboards inside same chassis can communicate each other through VME bus. Each board contains VME bus controller. VME bus controller implements functions of gating board, bus arbitration, interrupt response control, and reading and writing data. Each board possesses own address. Through VME bus, gated board exchanges data to CPU board. Using shared memory exchanges data between CPU boards in same backboard bus. The reflection memory CIB executes remote comm and real time control among multiple control systems. MCB can exchange data to CPU main board, and control motor through optical fiber interface driven by power switch in bottom layer.

The invention discloses a mobile AD Hoc network self-adapting secure routing method based on reliability. The method comprises the following four major steps: step I, a source node transmits data packets; step II, an intermediate node forwards the data packets; step III, a destination node receives the data packets; and step IV, the data packets are transmitted and confirmed and reliability is updated. The method integrates route discovery and data transmission into a whole process, each node evaluates the reliability of adjacent nodes reaching the destination node through a response feedbackmechanism, and independently makes a route decision according to reliability evaluation level, so that unreliable nodes are avoided and a reliable path is selected from a plurality of alternative paths, the method solves secure and reliable data transmission and symmetrical secret key transmission while solving secure routing discovery problem, and improves the security and the adaptability of the network. Compared with an existing AD Hoc network routing method, the method can resist attack to a greater extent on the basis that higher expense is not needed, still has good restorability when anetwork size is changed, nodes rapidly moves and even attack in a large scope exists and error of nodes exists, and is applicable to large-scale network with rapidly moving nodes. The method has a higher practical value and a wide application prospect in the technical field of mobile AD Hoc network security.

The invention relates to an ammunition overload detection device, and in particular relates to an overload test and detection device of a gas gun, wherein the device provided by the invention can be used for solving the technical problems such as inconvenience in operation and use and the like of the existing air gun penetration test device. The overload test and detection device of the gas gun comprises a frame body which is provided with an overload test air gun launching device, a charging overload test bomb, an overload test protective box and an overload test target plate replacement device. Comprehensively, compared with the prior art, in the technical scheme provided by the invention, the target plate replacement device for an overload test, the overload test protective box and a small-size penetration test bomb are designed specially for the small-size charging and priming system air gun overload performance test, principles and methods relevant to the mechanical design are utilized, the design scheme has the characteristics of being vigorous, practicable, convenient and the like, and the overload test and detection device has the advantages of favorable practical value, reliable operability and accurate experiment result.

The digital medical information monitoring and controlling system for full ward includes digital sickbeds based on reducing physiological and psychological load and with basic physiological parameter detecting sensors and therapeutic equipment, nurse workstation and doctor workstation with central log-in board, industrial control computer and auxiliary apparatus, and bus type network. The digital sickbeds are connected via the system bus with nurse workstation, doctor workstation, etc. The present invention is widely applicable and provides powerful tool for understanding, searching and controlling diseases.

The invention relates to the field of unmanned aerial vehicle (UAV) and ground robot coordinated formation, and provides a system which has good scalability and strong stability and can support UAV and ground robot platform coordinated formation so researchers can conduct physical simulation and experimental verification on an air-ground coordinated formation algorithm through the system. The technical scheme is as follows: a UAV and ground robot coordinated formation system is composed of a UAV formation, an indoor positioning system, ground mobile robots, and a ground work station; the UAV formation includes multiple four-rotor UAVs of different models, and each UAV is equipped with an airborne controller, a sensor device and a Wi-Fi module; and the airborne controllers run a flight control algorithm in real time and are responsible for coordinating and commanding all behaviors of the UAVs, and the attitude information of the UAVs is acquired by the sensor devices. The system is mainly applied to the occasion of UAV and ground robot coordinated formation.

The invention provides a method of reconstructing a power distribution network containing a distributed power supply. A network topology adjusting module considering various load modes is established according to actual operation conditions of the power distribution network and has good practical value. Meanwhile, topological adjusting is performed by means of a binary particle swarm optimization algorithm according to features of network topology adjustment; a dynamic inertial weight adjusting mode is provided; better coordination with global convergence speed and local convergence precision is provided; optimizing effect is better; the topological adjustment results and analysis of an IEEE-33 node typical distribution system show that the method is effective and practical.

The invention belongs to the field of synthesis of nano materials, relates to the preparation of graphene/mesoporous oxide series of nano composite material, and particularly relates to a preparation method and application of graphene/cellulose/titanium dioxide composite material. The graphene/cellulose/titanium dioxide composite material is prepared by preparing graphite oxide by utilizing an improved Hummers method, carrying out ultrasound to obtain graphene oxide, reducing graphene oxide into graphene by using sodium borohydride; and finally uniformly mixing cellulose, titanium dioxide, a surface active agent (hexadecyl trimethyl ammonium bromide) and grephene. According to the invention, the synthesis method is simple, the prepared graphene/cellulose/titanium dioxide composite material is taken as an adsorbent, and a malachite green dye solution is taken as an adsorption object, the experiment shows that the composite material has an excellent adsorption removal effect. The composite material is applied to the treatment of dyes in sewage water, has the advantages of simplicity in operation, convenience, easiness in availability, high adsorption rate and the like, and has good industrially practical value.

The invention discloses a determination method of tunnel surrounding rock prestressing force reinforcing anchor rod length and radial prestressing force values. According to the surrounding rock elastic-plastic theory and the plastic zone distribution regulation, and, on the basis that a tunnel plastic ring radius R and a surrounding rock pressure force are comprehensively determined, the minimum length value and a radial minimum prestressing force value of a tunnel surrounding rock reinforcing anchor rod are determined. The determination method advantageous in that, according to the surrounding rock elastic-plastic theory and the plastic zone distribution regulation, and, on the basis that the tunnel plastic ring radius R and the surrounding rock pressure force are comprehensively determined, the minimum length value and the radial minimum prestressing force value of the tunnel surrounding rock reinforcing anchor rod are determined, the calculation process is relative clear and concise, and a measured result is high in accuracy and accurate, has a small error compared with the actual and can guide the practice well.

The invention provides webpage metadata automatic extraction method and system based on multi-page comparison, belonging to the field of internet information processing. Pages of an internet are organized by utilizing a loose HTML (Hypertext Markup Language), but the HTML grammar is not strictly verified, the semantics and the expression form are mixed together, which brings great difficulty for webpage data extraction. The invention can solve the problem very well. In the invention, based on a hypothesis that a dynamic page is generated by filling different data by the same template, convention derivation can be carried out through comparing a plurality of similar pages, and the template of generating the group of the pages is obtained. The system comprises the following components of: (1) a webpage collector which captures the webpages from a preset website; (2) a webpage classifier which classifies the similar pages into one group; (3) a webpage metadata analysis module which derives the template and extracts metadata; (4) a webpage metadata storage which stores and indexes the metadata; and (5) a metadata search engine which retrieves and displays the metadata.

The invention discloses a mean-temperature method of a cylindrical battery. The mean-temperature method of the cylindrical battery has the technical scheme that 1, the arrangement mode is determined according to the battery pack forming requirements, and a casing module is designed; 2, a cylindrical battery cell is assembled in the casing module, and sealant is coated for sealing; 3, liquid phase change material composite glue is prepared; 4, the phase change material composite glue is poured into the casing module, and a battery pack with good temperature consistency is obtained after curing and forming. The phase change material composite glue is prepared by phase change materials and organic silicon filling and sealing glue according to a certain ratio, wherein the phase change materials use paraffin and graphite as major components; the organic silicon filling and sealing glue uses vinyl silicone oil and modified aluminum oxide powder as major components. Through the structure features of the mean-temperature method, the mean-temperature method has the beneficial effects that the battery core has good temperature consistency; the module structure is good in intensity and can pass by the battery pack-relevant vibration, falling and collision tests. The phase change material composite glue is encapsulated in the casing; no loss occurs after the long-time cyclic use; the permanent service life is realized.

A power distribution network one-phase grounding fault location method based on a zero sequence voltage belongs to a power distribution network grounding fault location method. The fault location method starts from an overall zero sequence parameter of a single-end radial medium voltage power distribution network, analyzes a one-phase grounding fault while taking a distributed parameter model influence into consideration, measures a steady-state zero sequence voltage value and a zero sequence current of each feeder line at a bus position and at a tail end of each outlet line, and finds zero sequence voltage variation characteristics of a fault feeder line and non-fault feeder line. According to the invention, a large number of existing devices are used, the data sampling requirement is low in terms of being real-time, and the method of the invention is easy to realize; the simulation model analysis is established according to the actual parameters, so that the fault location can be realized in the system in which the neutral point is not grounded or the neutral point is grounded through an arc suppression coil; the precision is quite high; and the location method of the invention can be applied to the medium and low voltage power distribution network.

The invention discloses a preparation method of a super-hydrophobic coating layer on an aluminum surface. The preparation method mainly comprises the following steps: (1) an aluminum piece is polished by an abrasive paper, is ultrasonically cleaned for 10 minutes by acetone and ethanol, is washed by distilled water to remove oil stains on the surface, and is dried in an oven; (2) the aluminum piece is dip in an acid etching agent for etching to obtain the aluminum surface with a micron rough structure; (3) the micron rough aluminum piece is dip in nanometer TiO2 particle solution, and is treated at high temperature to obtain the aluminum surface with a micron-nanometer composite rough structure; and (4) the aluminum surface with the micron-nanometer composite rough structure is treated by fluorine silane with low surface energy to obtain the aluminum surface with super-hydrophobic performance. The prepared super-hydrophobic aluminum piece is excellent in self-cleaning performance, fog resistance and ice covering resistance, and can be applied to field of ice covering prevention.