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39results about How to "Features" patented technology

Method for establishing load sensitivity controlled axial plunger pump virtual prototype

The invention relates to a method for establishing a load sensitivity controlled axial plunger pump virtual prototype. The method comprises the following steps of: 1, establishing a kinetic model of an axial plunger pump in kinetic simulation software, and establishing a hydraulic system model of the axial plunger pump in hydraulic system simulation software; 2, establishing a software interface by using correlated condition variants and parameters associated with each other in the simulation process of the kinetic model and the hydraulic system model as transfer parameters between the two models; and 3, performing real-time data transmission and united simulation by using the software interface between the kinetic model and the hydraulic system model. By using a hydraulic-mechanical coupling united simulation technology in the method, advantages of the kinetic simulation software on the simulation aspect of a mechanical system and the hydraulic system simulation software on the simulation aspect of a control system are fully exerted; and by united simulation, accuracy of the simulation result of the axial plunger pump virtual prototype is improved, the experiment cost is reduced, the experiment efficiency is improved, and the design time is shortened.
Owner:FUZHOU UNIV

Method for identifying flow type of soft grain two-phase turbulence based on artificial intelligence

The invention relates to a method for identifying the flow type of soft grain two-phase turbulence based on artificial intelligence, comprising the following steps: 1), collecting the pressure signals of the soft grain two-phase turbulence; 2), extracting and analyzing the pressure signal characteristics: carrying out multi-level division on a frequency band by using a small wave packet method, further decomposing a high-frequency part without dispersed multiple resolution ratios, adaptively selecting corresponding frequency bands according to the characteristics of the analyzed signals so as to match the corresponding frequency bands with signal frequency spectrums; and 3), training and identifying flow type samples composed of defined characteristic parameters by using a probabilistic neural network, wherein learning samples are characteristic vectors of information entropy of a small wave packet after normalization according to a relationship between a probabilistic neural network structure and the learning samples, determining the structure of the probabilistic neural network for flow type identification as well as carrying out relative set on the network and learning training, and identifying the samples with different flow types by using the probabilistic neural network. The method has high veracity, good applicability and high reliability, and can effectively meet on-line identification requirements.
Owner:ZHEJIANG UNIV OF TECH

Method for identifying key protein using artificial bee colony optimization algorithm of foraging mechanism

InactiveCN106874708AFeaturesSolve the shortcomings of not being able to consider the overall nature of the networkArtificial lifeProteomicsProtein protein interaction networkPerformance index
The invention discloses a method for identifying key protein using an artificial bee colony optimization algorithm of a foraging mechanism. The method comprises: converting a protein-protein interaction network to an undirected graph, obtaining ribonucleic acid genetic expression values corresponding to protein, preprocessing edges and nodes of the protein-protein interaction network, establishing a dynamic protein-protein interaction network, selecting known key protein as a honey source, honey bees searching neighbourhood of the honey source, following bees searching neighbourhood of the honey bees, updating the honey sources, investigating bees searching new honey sources in a global manner, updating the honey sources, and generating the key protein. The method can accurately identify the key protein. Results of simulation experiments show that sensitiveness, specificity, positive predictive values, negative predictive values and other performance indexes are relatively excellent. Compared with other key protein identification method, the identification process of key protein realized by combining optimizing characteristics of artificial bee colony with characteristics of the protein-protein interaction network improves identification accuracy rate of the key protein.
Owner:SHAANXI NORMAL UNIV

Hand drive and hand control differential gear transmission type walk alternative

ActiveCN108791633AEasy and comfortable operationDrive steering compactWheel based transmissionCycle brakesDisc brakeGear transmission
The invention discloses a hand drive and hand control differential gear transmission type walk alternative. The hand drive and hand control differential gear transmission type walk alternative comprises a trolley frame main body, a driving and steering mechanism, a speed changing mechanism and a braking mechanism. The trolley frame main body comprises a pedal and a semi-open trolley frame cover. The driving and steering mechanism comprises manipulation rockers, hollow casing pipes, ratchet mechanisms, side wheels and a rear omnidirectional wheel. The speed changing mechanism is arranged to bea planetary gear mechanism and achieves acceleration. A user holds handles at the upper ends of the manipulation rockers and pushes and pulls forwards and backwards to achieve power for moving forward. When the left hand pushes independently, turning right is achieved, and when the right hand pushes independently, turning left is achieved. The braking mechanism comprises a brake handle, a brake line and a disc brake. According to the walk alternative, the principle and structure break through the transmission method and steering operation mode of a traditional walk alternative, the user can operate in a stand mode, hand forward and backward pushing and pulling replace traditional walk alternative moving forward driven by foot treading, and therefore new human-computer interaction mode is achieved, and new potential of a brain is developed and physical coordination is developed.
Owner:SHANGHAI UNIV

Novel pressing rod device of entertainment facility

The invention relates to a novel pressing rod device of an entertainment facility. The device comprises a seat, a leg pressing foaming assembly, pressing rods arranged on two sides of the seat and first safety belts arranged on two sides of the seat, the seat is provided with a sitting part and a back part, self-locking mechanisms used for allowing one ends of the pressing rods to rotate or lock relative to the back part are arranged on the back part, the other ends of the pressing rods are fixedly connected with the leg pressing foaming assembly, one ends of the first safety belts are fixedlyconnected with the back part through a tightening mechanism, the other ends of the first safety belts are fixed on the leg pressing foaming assembly, when the pressing rods are pressed, the first safety belts and the pressing rods are locked synchronously, a space capable of accommodating the upper part body of a player is formed in the part between the first safety belts and the back part, a space for the legs of the player to extend out is formed in the part between the leg pressing foaming assembly and the sitting part, the first safety belts are automatically tightened to adhere the bodyof the player by the tightening mechanism according to the body shape of the player, an operator does not need to repeatedly adjust the safety belts for players with different body shapes, player loading time is shortened to a greater extent, and the operating efficiency is effectively improved.
Owner:GUANGDONG JINMA ENTERTAINMENT CORP LTD

Novel box-type modularized combined house building structure

The invention discloses a novel box-type modularized combined house building structure. The novel box-type modularized combined house building structure comprises a modularized house system, a housing system and a house building foundation. The modularized house system is formed by one to several box-type modularized houses. The housing system is formed by a modularized corridor, a stair, a platform and a housing. The bottom of the house building foundation is buried under the ground, and used as the bottom support of the modularized house system, and used for fixing the modularized house system on the position higher than the ground. The modularized corridor of the housing system is positioned at one side of each layer of a house door of the modularized house system. The stair of the housing system is connected to the end of the corridor of each layer. The platform of the housing system is fixed on the house building foundation too. The housing system is a non-sealed building enveloping structure and covers the outer sides of other sub-systems. The novel box-type modularized combined house building structure is capable of solving the technical problems of a traditional container or a box-type modularized combined house that the appearance is not beautiful, the use is inconvenient, the shading and heat-shielding performance is bad and the architecture factors are deficient.
Owner:高建宇

Online high-temperature and high-pressure radiation corrosion simulation system and method

The invention discloses an online high-temperature and high-pressure radiation corrosion simulation system and method. The online high-temperature and high-pressure radiation corrosion simulation system comprises a second water storage tank, a high-pressure pump, a preheater, an autoclave, a condenser and a collecting tank which are sequentially connected into a ring shape through a pipeline; andradioactive sources are arranged on one side of the second water storage tank, and a suspension point is arranged in the autoclave. According to the online high-temperature and high-pressure radiationcorrosion simulation system and method, by arranging the radioactive sources on the outer side of the second water storage tank, water in the second water storage tank can be irradiated; through arrangement of the high-pressure pump and the preheater, the water entering the autoclave can be heated and pressurized, and thus the high-temperature and high-pressure radiation corrosion environment faced by a structural material can be simulated; and additionally, according to needs to the actual situation, the radioactive sources can also be moved away, at the moment, a device can simulate the corrosion situation of the related material under the high temperature and the high pressure, the various types of radioactive sources can further be arranged to radiate the water, and then multi-factorsynergistic corrosion under various radiation types is simulated.
Owner:EAST CHINA UNIV OF TECH

Auricularia auricula crisp biscuits and making method thereof

The invention relates to auricularia auricula crisp biscuits and a making method thereof, belongs to the field of biscuit processing, and solves the problems of development of auricularia auricula andsparassis crispa compounding biscuit products, and mouth feel and quality guarantee period of biscuits at present. The auricularia auricula crisp biscuits disclosed by the invention are made from thefollowing raw materials of 100 parts by weight of ordinary flour, 5-15 parts by weight of auricularia auricula powder, 1-3 parts by weight of a sparassis crispa extract, 2-3 parts by weight of bakingpowder, 25-45 parts by weight of fat, 1.5-3.5 parts by weight of L-arabinose, 1-3 parts by weight of table salt, 10-13 parts by weight of water and an antioxidant, wherein the addition quantity of the antioxidant is 50-100mg/kg based the weight of the fat, and the sparassis crispa extract is obtained by the following method of crushing sparassis crispa, performing screening with a 160-mesh sieve,performing extraction with ethanol once to obtain residues, adding water, performing extraction once again to obtain extracts, performing concentration on the extracts, performing ethanol precipitation, and performing drying. The raw materials are mixed in proportion to be made into biscuit semi-finished products, and then the biscuit semi-finished products are put in an oven to be baked so thatthe auricularia auricula crisp biscuits are obtained. The auricularia auricula crisp biscuits and the making method thereof disclosed by the invention are suitable for deep processing and utilizationof auricularia auricula.
Owner:INST OF MICROBIOLOGY HEILONGJIANG ACADEMY OF SCI

Method and private facilities for measuring bitumen stiffness and crisp point

The present invention discloses a measurement method for asphalt stiffness and brittle point, as well as a special device thereof. The measurement method comprises the following steps that: a metal sheet coated with an asphalt film is arranged on a bracket; a constant-temperature device is controlled to decrease the temperature by 1 DEG C per minute; according to a parameter set by national standard, the metal sheet coated with the asphalt film is bent; an elasticity measurement device is utilized to measure the stiffness of the metal sheet; after a measurement result is transmitted to an elasticity record analysis device in the mode of digital signals, the measurement result is analyzed and calculated; a stiffness curve is output by a digital display device; when the curve drops instantaneously, a corresponding temperature is the brittle point of asphalt. The measurement device provided by the present invention is high in precision and convenient to operate. The measurement method provided by the present invention is high in data accuracy with no interference from human factors. The method can further find out the characteristics of asphalt samples by analyzing the stiffness curve, thereby having important application value in the asphalt brittle point measurement field.
Owner:CHINA NAT OFFSHORE OIL CORP +2

Method for establishing load sensitivity controlled axial plunger pump virtual prototype

The invention relates to a method for establishing a load sensitivity controlled axial plunger pump virtual prototype. The method comprises the following steps of: 1, establishing a kinetic model of an axial plunger pump in kinetic simulation software, and establishing a hydraulic system model of the axial plunger pump in hydraulic system simulation software; 2, establishing a software interface by using correlated condition variants and parameters associated with each other in the simulation process of the kinetic model and the hydraulic system model as transfer parameters between the two models; and 3, performing real-time data transmission and united simulation by using the software interface between the kinetic model and the hydraulic system model. By using a hydraulic-mechanical coupling united simulation technology in the method, advantages of the kinetic simulation software on the simulation aspect of a mechanical system and the hydraulic system simulation software on the simulation aspect of a control system are fully exerted; and by united simulation, accuracy of the simulation result of the axial plunger pump virtual prototype is improved, the experiment cost is reduced, the experiment efficiency is improved, and the design time is shortened.
Owner:FUZHOU UNIV

A processing method and device for point cloud data, and a point cloud rendering method and device

The invention relates to the field of computer technology, and particularly to a point cloud data processing method, a point cloud data processing device, a point cloud rendering method and a point cloud rendering device, wherein the point cloud data processing method comprises the steps of constructing an octree structure of original point cloud data based on a spatial characteristic of the original point cloud data, wherein the octree structure comprises leaf nodes and non-leaf nodes; equally dividing the non-leaf nodes into a plurality of spatial blocks according to the spatial structure; and performing traversal of each spatial block in a plurality of spatial blocks, and if the point cloud data is included in the spatial block, extracting the point cloud data of one point cloud, thereby obtaining the non-leaf node after extraction. Through performing extraction processing on the non-leaf node of the octree structure, rendering efficiency is improved in performing screen rendering by means of the point cloud data of the non-leaf node. Furthermore, because the point cloud which is obtained through extraction is uniformly dispersed in the spatial block which comprises the point cloud, a problem of characteristic covering caused by over-concentration in an extraction result, and the characteristic of the original point cloud can be well represented.
Owner:NAVINFO

Method for identifying flow type of soft grain two-phase turbulence based on artificial intelligence

The invention relates to a method for identifying the flow type of soft grain two-phase turbulence based on artificial intelligence, comprising the following steps: 1), collecting the pressure signals of the soft grain two-phase turbulence; 2), extracting and analyzing the pressure signal characteristics: carrying out multi-level division on a frequency band by using a small wave packet method, further decomposing a high-frequency part without dispersed multiple resolution ratios, adaptively selecting corresponding frequency bands according to the characteristics of the analyzed signals so asto match the corresponding frequency bands with signal frequency spectrums; and 3), training and identifying flow type samples composed of defined characteristic parameters by using a probabilistic neural network, wherein learning samples are characteristic vectors of information entropy of a small wave packet after normalization according to a relationship between a probabilistic neural network structure and the learning samples, determining the structure of the probabilistic neural network for flow type identification as well as carrying out relative set on the network and learning training, and identifying the samples with different flow types by using the probabilistic neural network. The method has high veracity, good applicability and high reliability, and can effectively meet on-line identification requirements.
Owner:ZHEJIANG UNIV OF TECH

Method and device for identifying degree of EEG relaxation based on multi-spatial signal features

ActiveCN106923824BFeaturesAvoid problems that affect the final recognition accuracySensorsPsychotechnic devicesTime domainSignal wave
The invention discloses an electroencephalogram relaxing degree identifying method and an electroencephalogram relaxing degree identifying device based on multi-space signal characteristics. The electroencephalogram relaxing degree identifying method comprises the following steps: extracting signal waves from electroencephalogram sequence signals to be processed; acquiring the sampling point number of the signal waves and the points with the amplitudes being smaller than the amplitude threshold value in each second and with the maximal amplitude absolute values, calculating the average value of the amplitudes, calculating the probability density of the amplitude according to the sampling point number and the average value of the amplitudes, thus obtaining the characteristic quantity in the time domain space; calculating the phase space distribution density of the signal waves, thus obtaining the characteristic quantity in the phase space; calculating the energy of the signal waves, calculating the center frequency of each signal wave according to the energy and the frequency range of each brain wave, thus obtaining the characteristic quantity in the frequency domain space; and carrying out classified identification according to the characteristic quantity in the time domain space, the characteristic quantity in the phase space and the characteristic quantity in the frequency domain space, thus obtaining the electroencephalogram relaxing degree. With the method and the device, the characteristics in different spaces of the each brain wave can be comprehensively extracted, and thus the accurate identification for the electroencephalogram relaxing degree can be realized.
Owner:GUANGZHOU SHIYUAN ELECTRONICS CO LTD +1
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