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201results about How to "Change limitations" patented technology

Truss supporting technology for ingredient top slope deformation control

InactiveCN1594834AReduce distortionSolve the problem of shear slip and cavingMine roof capsAnchoring boltsPull forceWhole body
A truss supporting technology for controlling ingredient top slope deformation is adapted for controlling the sinkage of wide span alley way top board separation layer, the top board and alley slope shear-slip breakaway or controlling the deformation of alley slope part. When using an anchor rod anchorage cable support for ingredient top board or alley slope part, plural trusses composed of two steel twist lines and double hole steel bushing coupler is set on the ingredient top board or alley slope part with spaces for support, each truss is shielded under the anchor solid, two steel twist lines are connected and locked by the coupler to form expansion and pull force to generate extrusion and protection function for the ally way top board or slope part. Not only the problem that the sinkage of the wide span alley way top board separation layer and the top board and alley slope shear-slip breakaway is solved, the top board is supported effectively, but also the displacement of the alley slope towards to alley inside is controlled, thereby the deformation of the alley slope is reduced, so the alley way can satisfy production requirement. In addition, the connection of the support whole body between the steel twist lines is adopted to change the limit of single anchorage cable support. The structure is simple, convenient in use and has broad practicability.
Owner:CHINA UNIV OF MINING & TECH

Swinging device with three-dimensional scanning laser radar

ActiveCN102393516ARealize nodding vertical swingChange limitationsElectromagnetic wave reradiationRadarEngineering
The invention relates to a swinging device with a three-dimensional scanning laser radar. The swinging device is characterized by comprising a radar swinging bracket and a vertical direction swinging mechanism, wherein the entire frame of the radar swinging bracket consists of an installation support surface, a swinging plate, an installation support surface and swinging brackets on both sides ofthe swinging plate; the swinging plate is provided with a connecting lug; one end of each swinging frame is fixedly connected with the side wall of the installation support surface; the other end of each swinging bracket is in shaft connection with a support shaft and the swinging plate through the connecting lug; a reset spring is connected between the swinging plate and the installation supportsurface; and the inner side face of the installation support surface is fixedly connected with the vertical direction swinging mechanism. The swinging device has the advantages: the radar swinging bracket is arranged on an original radar installation surface, a radar is arranged on the swinging surface of the radar swinging bracket, and a cam is driven to swing along the vertical direction, so that nodding type vertical swinging of a SICK radar is realized, and a two-dimensional laser radar is converted into a three-dimensional scanning laser radar.
Owner:MILITARY TRANSPORTATION UNIV PLA

Isolated liver perfusion system and method

ActiveCN105660604AGuaranteed vital activityAlleviate reperfusion injuryDead animal preservationTemperature controlVein
The invention discloses an isolated liver perfusion system and method. The system comprises a perfusate temperature control tank, an isolated liver preservation tank, a portal vein perfusion path, a hepatic artery perfusion path, a perfusate backflow path and a bile collector. The portal vein perfusion path is used for conveying perfusate to the portal vein of an isolated liver, the hepatic artery perfusion path is used for conveying perfusate to the hepatic artery of the isolated liver, the perfusate backflow path is used for recycling perfusate flowing out of the isolated liver into the perfusate temperature control tank, and the bile collector is connected with the isolated liver preservation tank and used for collecting bile. The isolated liver is perfused from the portal vein and the hepatic artery through the two paths respectively, the system and method are applicable to damage protection in the isolated liver preservation process, the reperfusion injury of the liver can be significantly relieved, and reliability, stability and repeatability are high. The system and method can effectively store the isolated liver at low temperature, mild hypothermia and normal temperature, and the limitation that the isolated liver needs to be stored at low temperature and the requirement for marginal donor liver preservation cannot be met in the prior art is changed.
Owner:杭州莱普晟医疗科技有限公司

Electrostatic spinning method for preparing interlayer nano-fabric and device thereof

The invention provides a spinning device used for molding interlayer nano-fabric for once, and a method for preparing the interlayer nano-fabric by applying the spinning device. The device comprises a machine body, a liquid supply device, a collecting device and at least two groups of spinning devices, wherein the two groups of spinning devices are respectively positioned at the left and the right sides of the machine body and respectively comprise at least one spinneret; the spinnerets of the two groups of spinning devices are arranged in an opposite way and are respectively connected with high voltage with opposite polarity; the collecting device is a roller device connected with a motor, can rotate around a shaft and is positioned between the two groups of spinnerets; the axial direction of the roller device is vertical to the spinning direction of the spinnerets; and the roller device can make axial reciprocating motion parallel to the roller device under the control of the motor. When different polymer solutions are provided by the two groups of spinning devices, the continuous interlayer nano-fabric can be formed on the surface of the roller device due to the action of electric field force as well as rotation and reciprocating motion of the roller device.
Owner:BEIJING INSTITUTE OF CLOTHING TECHNOLOGY

Elastic analysis method of vascular wall based on finite element deformation theory

InactiveCN101474082AAccurately characterize the lesionCharacterize the lesionSurgeryCatheterSonificationCardiac cycle
A method for analyzing the elasticity of vessel walls based on finite element deformation theory belongs to the medical image analysis field. The elasticity of the vessel wall is analyzed by calculating strain characteristic values of the vessel wall in an IVUS image under pressure. An ultrasound transducer hovers in a certain position of a blood vessel lumen for acquiring images of a plurality of cardiac cycles; and the images are input into a computer for processing. The method comprises that: a template matching method is used for searching out matching points of marking points in an original image in a template image; the vessel wall is divided into a plurality of layers according to the organization characters of the vessel wall; a method for calculating the elasticity of the vessel walls based on finite element partition is provided; the vessel walls are divided into a plurality of conjoined triangles according to the characteristics of triangle infinite element strain; with a view to the interaction of the triangles in deformation, factors of influence are also added into the calculation of the strain value. The limitations existing in the existing method for analyzing the elasticity of the vessel walls are changed. The characteristics of pathological changes of the vessel walls are exactly portrayed, thus creating conditions for the analyzing of pathological changes.
Owner:BEIJING UNIV OF TECH

Gridding scheduling method based on energy optimization

The invention relates to a grid scheduling method based on energy optimization, which includes: 1. energy resources are the research focus of scheduling and factors such as initial energy value, network bandwidth, etc. are taken into consideration; 2. the energy optimization is achieved to ensure minimum energy consumption in the resource scheduling and the energy consumption in the grid resource scheduling is divided into calculation consumption and network communication consumption; 3. the optimization of time span is taken into consideration so as to ensure the load balance of the resource in the process of energy optimization; 4. a grid scheduling method based on energy optimization with a comprehensive consideration of energy constraint and time constraint is proposed. The method has the advantages that: 1. the limitation of singleness of resource type in the traditional resource scheduling calculation is changed; 2. the energy optimization is taken as the research focus of the scheduling model; 3. the problem of load imbalance caused in the process of energy optimization is solved; 4. an energy cost function is defined on the basis of time span optimization and energy optimization and the grid resource scheduling method based on energy optimization is proposed on the basis of the cost function.
Owner:WUHAN UNIV OF TECH

X-ray multi-purpose nondestructive flaw detection device and workpiece detection method thereof

InactiveCN105092611AEasy accessReduce the possibility of radiation damage from raysMaterial analysis by transmitting radiationEngineeringHigh resolution image
The present invention discloses an X-ray multi-purpose nondestructive flaw detection device and a workpiece detection method thereof. The structure of the device includes a protective lead room, an objective table set up in the protective lead room, a linear array detector, and an X-ray machine. The linear array detector and X-ray machine respectively have a motion mechanism capable of operating independently; the motion mechanism operating independently of the X-ray machine includes an X-ray machine transverse motion mechanism and an X-ray machine longitudinal motion mechanism; and the motion mechanism operating independently of the linear array detector includes a detector transverse motion mechanism, a detector longitudinal motion mechanism, a rotary chuck, a lifting mechanism and a translation mechanism, so that the device is compatible with CT (three-dimensional) detection and DR (planar) detection functions. In CT mode, high-resolution image files can be obtained for research and development or sampling operations; DR mode is applicable to mass workpiece detection with low detection precision requirement; thus, detection mode can be converted based on need to meet the needs of flat or three-dimensional imaging.
Owner:HUAQIAO UNIVERSITY +1

Automatic intelligent design and optimization system for anchor bolt support of coal tunnel

The invention relates to an automatic intelligent design and optimization system for an anchor bolt support of a coal tunnel. The system comprises a tunnel surrounding-rock index obtainment and stability classification subsystem, an anchor bolt support parameter intelligent-matching subsystem and a support design verification and optimization subsystem, wherein the tunnel surrounding-rock index obtainment and stability classification subsystem realizes the classification and evaluation of tunnel surrounding-rock stability by processing data input by a user or calling parameters in relevant knowledge bases; the anchor bolt support parameter intelligent-matching subsystem establishes a training model based on a sample tunnel training BP (Back Propagation) neural network in an internal knowledge base of the system to realize the intelligent matching of anchor bolt support parameters of the coal tunnel; the support design verification and optimization subsystem implements theoretic checking calculation based on a suspension theory, a combined beam theory, a combined arch theory and an energy theory according to the anchor bolt support parameters obtained by the anchor bolt support parameter intelligent-matching subsystem, and automatically analyzes various support schemes to select the support scheme which meets the deformation requirements of tunnel surrounding-rocks, wherein the selected support scheme being the optimal support scheme is recommended to the user. By applying the system, the scientificity and the reasonability of the anchor bolt support structure and parameters are effectively guaranteed; the reliability of an anchor bolt support system is improved; the healthy development of an anchor bolt support technique for the coal tunnel in our country is promoted.
Owner:CHINA UNIV OF MINING & TECH (BEIJING)

Colloidal gold detection card for rapidly detecting melamine and preparing method thereof

The invention provides a colloidal gold cassette for rapid detection of melamine, the colloidal gold cassette has rapid detection, convenient carry and simple operation, the invention also provides a preparation method of the cassette, the preparation process thereof is simple, and the cost is low. The colloidal gold cassette comprises a test strip, the test strip is packaged in a shell body of the cassette, a sample adding hole and an observation hole are arranged on the shell body of the cassette, the test strip comprises a bottom plate, the colloidal gold cassette is characterized in that water absorbent paper, a nitrocellulose membrane, a gold-labeled pad and a sample pad are sequentially arranged on the bottom plate of the test strip, the water absorbent paper and the gold-labeled pad are respectively arranged at the two ends of the nitrocellulose membrane, small sections of the water absorbent paper and the gold-labeled pad are respectively overlapped on the nitrocellulose membrane at the junctions at the two ends of the nitrocellulose membrane, the sample pad is arranged at the other end of the gold-labeled pad, a small section of the sample pad is overlapped on the gold-labeled pad; a gold-labeled anti-melamine monoclonal antibody is sprayed on the gold-labeled pad; a detection line with the material of a melamine-ovalbumin coupled conjugate and a quality control line with the material of goat anti-mouse IgG are sequentially sprayed on the nitrocellulose membrane.
Owner:江苏省苏微微生物研究有限公司

Multifunctional X-ray channel type CT/DR detection device

The invention discloses a multifunctional X-ray channel type CT/DR detection device. The multifunctional X-ray channel type CT/DR detection device comprises a detection transmission line, a lead protection channel covering the detection transmission line, a lead protection door arranged on one side of the lead protection channel, a lead curtain suspended on two ends of the lead protection channel, an X-ray machine arranged at the top of the inner part of the lead protection channel, a linear array detector corresponding to the top and the bottom of the X-ray machine and arranged at the bottom of the inner part of the lead protection channel, a workpiece mounting base arranged inside the lead protection channel, in front-back correspondence to the lead protection door and used for mounting, moving and rotating the workpieces, a CT scanning mechanism arranged on the workpiece mounting base and a field operation table connected with the X-ray machine, the workpiece mounting base and the CT scanning mechanism and used for controlling the workpieces to scan, image and move. According to the multifunctional X-ray channel type CT/DR detection device, a DR moving mechanism and a CT moving mechanism capable of independently running are respectively mounted inside the detection device and are capable of respectively running according to the requirement, so that DR and CT functions can transform and make an organic combination.
Owner:XIAMEN BOFENG ELECTRONICS TECH

Machine-made sand pump concrete and preparation method thereof

The invention discloses machine-made sand pump concrete and a preparation method thereof, and belongs to the technical field of building materials. The preparation method comprises the following steps that firstly, machine-made sand is doped with pulverized fuel ash and then subjected to dry mixing to obtain a pre-mixed material, wherein the mass ratio of the machine-made sand to the pulverized fuel ash is 1:0.04 to 1:0.09; and secondly, other raw materials are added into the pre-mixed material and are stirred to prepare the machine-made sand pump concrete. According to the machine-made sand pump concrete and the preparation method thereof, the graduation and fineness modulus of fine aggregate are improved by doping the pulverized fuel ash to replace natural sand, and superfine stone powder is adopted as blending stock to be charged into gaps between grains of cementing materials such as cement, so that the pump concrete is prepared; and the concrete mixed through the method has the characteristics of being good in workability and fluidity, high in pumpability, low in water consumption and the like, the machine-made sand is widely applied to various pump concrete in the fields of industrial and civil construction and the like, immoderate dependence on and over exploitation for natural sand resources are reduced, the ecological environment is protected, and the economic and ecological benefits are remarkable.
Owner:SHIJIAZHUANG TIEDAO UNIV +1

Aircraft formation hierarchical network access management method and system

The invention belongs to the technical field of equipment maintenance or management, and discloses an aircraft formation hierarchical network access management method and system. The management methodincludes the following steps: initializing aircraft formation network parameters; identifying aircraft node capability state information; defining node comprehensive property parameter indexes by using the node capability state information; constructing a whole network node capability visibility graph according to the comprehensive property parameter indexes; selecting a formation network accessinitiation node according to the consideration of the node capability visibility graph and the geographical location area; completing control information interaction between the network access initiation node and a main topology central control node according to the principle of minimum hop count and a sleep state multipath way-finding mode based on geographic location information; and carrying out information in a formation after the network access initiation node receives network access response so as to make the nodes update a local information field to finish the formation network access.According to the invention, maximum network access efficiency is obtained with lowest cost, the comprehensive performance of formation network access is improved, network communication QoS needs are guaranteed, and the task completion efficiency and quality are improved.
Owner:XIDIAN UNIV

Building domain knowledge graph construction method based on neural network self-adaptive optimization parameter adjustment

The invention discloses a building domain knowledge graph construction method based on neural network self-adaptive optimization parameter adjustment. The method comprises the steps: firstly collecting building domain entities, entity attributes and corpora, and then carrying out the preprocessing, and obtaining a building entity recognition model annotation data set EntityData; training a self-adaptive entity recognition model based on BERT-BiLSTM-CRF by utilizing the data set EntityData, so as to obtain an entity recognition model EntityModel in the building field; preprocessing the buildingdomain relation data set to obtain a data set RelationData; training a self-adaptive relation extraction model based on the GRU by utilizing RelationData to obtain a RelationModel of a building domain relation extraction model; and finally, entities and attributes in the building field text data set are extracted through the EntityModel and the RelationModel respectively, and a building field knowledge graph is constructed. A user inputs a construction drawing review point through the Web platform, a hidden relation in the knowledge base is mined according to the construction drawing review point input by the user, and mined expert opinion information Recom is returned to the Web platform. According to the method, self-adaptive parameter adjustment is adopted, and compared with traditional manual setting, the knowledge graph of the building field is constructed more effectively.
Owner:HUAIYIN INSTITUTE OF TECHNOLOGY

Multi-target tracking and facial feature information identification method

The invention discloses a multi-target tracking and facial feature information identification method. The method comprises the following steps: firstly, inputting a facial video and converting the facial video into a human face key frame set SF; obtaining a data set SFD through classification and data enhancement SF; extracting SFD features by using an improved miniXaction model to obtain a self-adaptive optimization facial feature recognition model FFsmodel; extracting a key frame sequence in the face data stream FEV, and adaptively aggregating face tracking features to obtain a multi-targetface key frame position set FEC; loading an FFsmodel model and inputting the FFsmodel model into FEC to generate a multi-target facial feature classification result set FECR; and finally, opening an adaptive identification interface to process a terminal request, and storing an obtained processing result set of sign-in and target feature tracking state identification in a multi-target scene in a Web server. The improved multi-target tracking and self-adaptive facial feature recognition technology is combined, the picture feature result label with the highest accuracy can be effectively obtained, and the accuracy and use value of face tracking and facial feature recognition in a multi-target scene are improved.
Owner:HUAIYIN INSTITUTE OF TECHNOLOGY

Intelligent learning media interaction analysis method and device

The invention provides a media interaction method and device with self-learning abilities, and relates to the technical field of self-media. The core analysis method of the device includes the steps of target content management, target data collection under target content coverage, target data and content relevance analysis and performing question answering and guidance on the target data throughthe target content, and verification and correction of the target content through the target data. The media interaction method includes the steps of extracting the target content from an electronic media and obtaining the target data sent by an object, wherein the range of the target data is determined by the target content; performing relevance analysis on the target data and the target content,generating an analysis result, verifying and correcting the target content, and performing question answering and guidance on the target data. The method and device provide intelligent learning, solve the problem of relative low accuracy and precision of data collected in the past, effectively eliminate the state of higher target content error, implement the concept of associating theory with practice in cultural communication, and shorten the periodicity of scientific culture verification.
Owner:董云鹏

Planting method of tea trees

The invention discloses a planting method of tea trees. The planting method comprises the following steps of 1, seed selection, 2, land selection, 3, land preparation, 4, soil acidity and alkalinity adjustment, 5, planting of tea saplings, 6, management of a tea garden, 7, weeding and pest killing, 8, topdressing and 9, pruning. By means of the planting method of the tea trees, organic fertilizerand biomass fertilizer are utilized, the method is environmentally friendly, the organic fertilizer has balanced nutrients, the absorption of the fertilizer by the tea trees is facilitated, and soil hardening is prevented; the damage of diseases and insect pests to tea leaves is reduced, other insect pests are killed through insecticidal lamps or manual work, and the planting method is natural andinnocuous; the tea trees grow in a healthy and natural state, the quality of the tea trees is higher, the survival rate of the tea trees is high, and the yield of the tea trees can also be increased;the limitation situation that tea trees are all planted on mountain slopes is changed, the survival rate is 90% or above, branches are pruned many times in the growth process of the tea trees, the branching rate of the tea trees can be greatly increased, the tea yield of the single tea tree can be increased by 20-30%, and the economic efficiency is improved.
Owner:瓮安县双山茶业有限公司
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