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170results about How to "Practical application value is great" patented technology

Information search and information exchange search process of business network and internet of things

The invention provides an information search process for a business network based on a decimal network architecture and an internet of things based on IPV4 network architecture, as well as an information exchange search process for the business network and the internet of things based on IPV4 / IPV6 protocol and business network-applied IPV9 fully digital address. Information exchange and sharing as well as the transparent management on commodities and things are realized through interconnected computers and wireless or data communication network. The business network is applicable to an electronic label, one or two dimension bar code or other carrier codes to search information on decimal network or the internet interconnected with the decimal network through. In the information search from the internet of things, a standard identification code is converted into CN domain name through regular expression, thus being capable of realizing compatibility with the coding standard of any thing; and a business network-applied IPV9 router directly exchanges electronic codes for the domain name, has the dual functions of routing and analysis and can reduce cost as well as intermediate link.
Owner:SHANGHAI DECIMAL NETWORK INFORMATION SCI & TECH

Dynamic objective radiation characteristic simulating system

The present invention provides a kinetic target simulator system, especially for a simulation system of radiation characteristic and the real-time changing condition in the course that missile threat simulation system imitates missile access. The kinetic target simulator system includes a radiation power, a radiation intensity adjusting and controlling module, an image system module, a moving and controlling module and a main control module, wherein, the radiation power adopts a laser radiation power. The invention adopts the laser radiation power as radiation power, having better directing property, far working distance, quick speed of intensity modulation and light system. The system has widely practical value, fit for all kinds of kinetic target simulator systems.
Owner:ZHEJIANG UNIV +1

Graphene/carbon nanotube network flexible multifunctional strain sensor preparation method

The invention discloses a three-dimensional graphene / carbon nanotube network flexible multifunctional strain sensor preparation method. According to the invention, the three-dimensional network of three-dimensional graphene and a one-dimensional carbon nanotube grows through two-step chemical vapor deposition; and the three-dimensional network and an elastic polymer as a flexible substrate are solidified and combined to acquire a flexible wearable multifunctional electronic strain sensor based on the three-dimensional network of the graphene and the carbon nanotube. According to the invention, the electronic strain sensor breaks the limitation relationship between the strainability and the sensitivity of the strain sensor, has an excellent electronic strain sensing performance and the function of a micro heater, realizes high sensitivity detection of human physiological signals and physical activities, shows excellent electronic skin simulation capabilities and a micro heating source application performance, has the advantage of simple process, and can be widely used in many fields such as clinical diagnosis, health monitoring, a robot, an electronic screen, electronic skin, a flexible micro heater and intelligent home.
Owner:NANJING UNIV OF TECH

Shell powder, preparation method thereof, modification method thereof and application thereof

The present invention provides shell powder, modified shell powder, a functional coating using the shell powder or the modified shell powder, and a preparation method for the shell powder or the modified shell powder, a preparation method for the functional coating, and the like. According to the method disclosed by the invention, by virtue of special process treatment, shell powder, modified shell powder, and functional coating with a superior performance, and the like are obtained; and the finally obtained functional coating has an outstanding performance on aspects of antibiosis, deodorization, formaldehyde decomposition and the like, an unexpected joint synergistic effect among the components is shown, and a wide actual application value is provided.
Owner:天津蓝海优贝科技有限公司

Design method for chaos digital secret communication system based on FPGA

The invention relates to design method for FPGA based chaos digital secure communication system comprising following steps: executing discrete process for continuous chaos system by FPGA hardware, designing chaos discrete system by FPGA hardware and make it produce digital chaos sequence in a certain accuracy, adopting the digital chaos sequence as key, designing drive response type synchronous secure communication system based on choas discrete system, constructing a closed loop with interior signal, accomplishing two block FPGA development board finite digital voice communication using lattice type Cai chaos and real time voice secure communication system design based on lattice type Cai chaos. The invention is highly secure and accomplishes combination of chaos encryption system and traditional cipher system. The inventive secure communication system not only serve voice secure communication, but transmit confidential binary file. As long as data can be represented as binary data, it can execute secure communication. The inventive system can employ graph encryption / decryption and transmit over Ethernet.
Owner:GUANGDONG UNIV OF TECH

Flexible propelling mechanism of artificial machine fish

The flexible propelling mechanism of artificial machine fish includes flexible tail, motor driving mechanism inside the fish body and electric control part and can simulates fish's muscle twitch to drive the fish tail to swing harmoniously. The fish tail of stainless steel sheets is connected to the fish support, the tail fin driving steel wire and the tail body driving steel wire are fixed to the fish tail via the limiting guide holes separately, and two driving motors drive the tail fin driving wheel and the tail driving wheel separately. The harmonious tension and release of the steel wires realizes the composite motion of tail fin rotation and tail translation. The present invention can well simulate the motion posture of fish and raise propelling efficiency with eddy flow, and may be used in the hydraulic experiment research and as underwater equipment or miniature underwater detector.
Owner:SHANGHAI JIAO TONG UNIV

Annular steel structure supporting construction method with open type TBM (tunnel boring machine)

An open state is formed behind a shield of an open type TBM (tunnel boring machine), so that bolting and shotcreting with wire mesh and the like can be realized, when unfavorable geological conditions such as crushed zones are encountered, broken surrounding rock collapses and falls, which not only threatens the safety of operating personnel and equipment, but also greatly lowers the construction efficiency. The invention discloses an annular steel structure supporting construction method with the open type TBM. The supporting TBM is provided with a shield which has an annular steel structure installation space. When the unfavorable geological conditions are encountered, the annular steel structure can be fast erected in an assembly line mode under the protection of the shield, the shield is replaced with the annular steel structure for supporting the surrounding rock as the TBM tunnels; under the protection of the annular steel structure, an annular steel grating and a steel mesh hollow structure are used for carrying out the bolting and shotcreting supporting and the like, the previous extensive construction is changed to controllable standardized operation, the original open type unsafe environment is changed to a closed protected operation zone; the construction method disclosed by the invention is different from the passive supporting which is carried out after the surrounding rock collapses and falls; the annular steel structure actively close off the broken surrounding rock, then the surrounding rock becomes a part of the supporting structure, the work amount for backfilling concrete and removing slag is greatly reduced, and thus the method is more efficient and safer, the cost is reduced and the operation is easy to realize.
Owner:王静

Surface flow measurement method based on monostation shipborne high-frequency ground wave radar

The invention provides a surface flow measurement method based on a monostation shipborne high-frequency ground wave radar, belonging to the space-time processing field of shipborne high-frequency ground wave over-the-horizon radar signals and the ocean surface flow remote sensing field. The surface flow measurement method solves the problems of difficult synchronizing detection, small remote sensing field, high measurement cost and low observation efficiency of the traditional shore-based high-frequency ground wave radar which measures the surface flow vector field by using a two-station measurement scheme. A sea area to be measured is divided into a plurality of sector grids, and each grid is a detection unit; the position of actually measured positive / negative first-order Bragg spectral peak on each detection unit is obtained by a time-space joint spectrum estimation method and through spectrum search, and a radial flow velocity on the corresponding detection unit is obtained so that the radial flow field distribution of the measured sea area can be obtained; the optimal surface flow vector field on each unit is obtained by the least square method; the optimal surface flow vector fields which are measured in the same detection unit at a plurality of measurement moments are weighted and averaged so that the surface flow vector field of the measured sea area can be obtained. The surface flow measurement method based on the monostation shipborne high-frequency ground wave radar is specifically used for measuring the ocean surface flow.
Owner:HARBIN INST OF TECH

Environmentally friendly shell powder functional coating and preparation method therefor and uses thereof

The present invention relates to an environmentally friendly shell powder functional coating, a preparation method therefor and uses thereof. The coating comprises: bisphenol A-epon, modified shell powder, vegetable extract, propyl silicone emulsion, a nano additive, a modified organic micro powder agent, a surfactant, dioctylphthalate, 3, 3'-(4-trifluoromethyl methyl)-bi-4-hydroxy coumarin, 2,2,4-amino trimethyl-1,3-isoprene glycol mono iso-butyl methacrylate, butyl acetate, ethanol, trimethylol propane triacrylate, N-ammonia amino ethyl piperazine, polydimethylsiloxane and deionized water. In the present invention, by modification of a variety of components and materials, selection and collocation of specific components and a specific preparation method, the variety of components exert a synergistic effect, so as to make the prepared coating have significant antimicrobial, environmental-cleaning and wear-resisting properties. The coating has a huge application potential and extensive value in industrial production.
Owner:广西世家丽环保投资有限公司

Efficient drought-resisting and high phoshpate-tolerant nutritious bush mycorrhizal fungus and its production process

The present invention relates to Glomus mosseae 93-6 as one kind of efficient drought-resisting and high phosphate-tolerant nutrients bush mycorrhizal fungus and its production process. The Glomus mosseae preparation is prepared with kaoliang as host plant, mixture of zeolite and sand as culture medium. The dried preparation contains 40-65 spores in each ml. Glomus mosseae may be grown in various kinds of plants to improve nutrients absorption, raise drought resistance and promote growth of plant. Test shows that the present invention has excellent seedling strengthening and yield increasing effect on straw berry, rice, water melon and other crops.
Owner:北京市农林科学院植物营养与资源研究所 +1

Multi-layer microcapsule for room-temperature self repairing, and preparation method and application thereof

The invention discloses a room-temperature self repairing type thermoplastic polymer material based on a multi-layer microcapsule and a preparation method thereof. The thermoplastic polymer material comprises the following components in parts by weight: 70-95 parts of thermoplastic polymer base and 5-30 parts of filled multi-layer microcapsule for self repairing. The multi-layer microcapsule in the self repairing polymer material is a multifunctional intelligent multi-layer microcapsule combining a repairing agent and a catalyst. When a crack is generated in the base, the crack causes the capsule wall of the multi-layer microcapsule to crack together with the base, the liquid repairing agent at the capsule core part is released to be in contact with the catalyst on the middle capsule wall so as to initiate polymerization reaction at room temperature, and a generated new polymer bonds the cracked surfaces, thus preventing the propagation of the crack and repairing the crack. The multi-layer microcapsule used by the invention has moderate mechanical strength and favorable heat stability, and can endure the common thermal forming and processing technology of the thermoplastic material.
Owner:SUN YAT SEN UNIV

Hybrid energy battery device and manufacturing method thereof

ActiveCN104993773ADoes not affect photoelectric conversion efficiencyTake advantage ofBatteries circuit arrangementsFinal product manufactureElectrical batteryDual mode
The invention relates to a hybrid energy battery device and a manufacturing method thereof. The hybrid energy battery device comprises a solar cell panel (1) and a transparent dual-mode friction generator arranged on the solar cell panel (1), wherein the transparent dual-mode friction generator is composed of a contact-separation type friction generator and a rainwater friction generator, the contact-separation type friction generator is arranged on the solar cell panel (1), the rainwater friction generator is arranged on the contact-separation type friction generator, and a transparent insulating layer (9) is arranged between the rainwater friction generator and the contact-separation type friction generator. Compared with the prior art, the hybrid energy battery device and the manufacturing method thereof have the advantages of wide energy utilization range, simple structure, low cost and the like.
Owner:SHANGHAI UNIVERSITY OF ELECTRIC POWER

High-purity lactide and preparation method thereof

The invention discloses high-purity lactide and a preparation method thereof. The preparation method comprises the steps of raw material addition, free water removal, polycondensation, depolymerization, distillation and secondary distillation. The raw material addition step refers to that a catalyst is added into L-lactic acid or D-lactic acid, wherein the catalyst is one or more of zinc oxide, stannous oxide and stannous octoate. In the preparation process, the use of an organic solvent, N2 and inert gas and environmental pollution are avoided, the vacuum degree is moderate, purification loss is reduced, the production cost is reduced, and the method is suitable for industrial production. The L-lactide or D-lactide product prepared by the method is high in yield, optical purity and quality, the yield is more than or equal to 97 percent, and the optical purity of the purified lactide is 99.45 percent or above.
Owner:SHANDONG SHOUGUANG JUNENG GOLDEN CORN CO LTD

Crack performance measurement and optimization solution method for composite material glue joint structure

The invention relates to a crack performance measurement and optimization solution method for a composite material glue joint structure and belongs to the field of technical research in aeronautical material science. The method comprises the following steps: 1, establishing a crack propagation constructive relation model; 2, designing glue joint layer crack propagation tests by combining constructive relation forms; 3, reversely measuring glue joint layer crack propagation performance parameters by utilizing the multi-variable optimization method, and establishing a complete interface crack propagation mathematic model and analysis method. The crack performance measurement and optimization solution method for the composite material glue joint structure is high in calculation precision and speed, the established crack propagation constructive relation is simple and easy to use, the wide practical application value is achieved, and processes of damage start, material degradation, crack generation and crack propagation of bonding layer materials can be completely revealed.
Owner:SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA

Waterproof and oxygen-insulating sealing film as well as preparation method and application thereof

The invention discloses a waterproof and oxygen-insulating sealing film, a preparation method of the waterproof and oxygen-insulating sealing film, and an application of the waterproof and oxygen-insulating sealing film. The preparation method comprises the following steps: firstly, preparing graphene oxide nanoribbons (GONRs) by adopting a longitudinal multi-walled carbon nanotube oxidization cutting method, performing modification to obtain functional GONRs (K-GONRs), and then compounding the K-GONRs and an ethylene-vinyl acetate copolymer (EVA) on a film coating machine to form a film. According to a composite material thin film prepared by using the method disclosed by the invention, the K-GONRs have excellent compatibility with an EVA matrix, and meanwhile, the K-GONRs achieve good dispersion in the matrix. In addition, most of obtained laminar K-GONRs are distributed in an EVA composite thin film in parallel. By virtue of the multi-layer and parallel-distributed special structure and the close combination between a K-GONRs inserted layer and the EVA matrix, the thin film has excellent blocking performance and good acid and alkali resistance, and further improves the mechanical performance; meanwhile, the thin film is safe and environment-friendly, is particularly suitable for preparing valuable precision instrument sealing films, ice bags for packaging ice and frozen products, and food packaging films, and has wide practical application values.
Owner:FUZHOU UNIV

Composite energy apparatus and power generating method

The invention relates to a novel composite energy apparatus and a power generating method. The composite energy apparatus comprises a solar cell and a transparent friction generator covering on the surface of the solar cell. The transparent friction generator is used to replace a commercial proactive panel on the uppermost layer of the solar cell in rainy seasons or at night to form the novel composite energy apparatus; in sunny days, sunshine penetrates through the transparent friction generator, the solar cell can collect solar energy for realizing photovoltaic generation as usual; in rainy days when the photovoltaic generation efficiency is greatly reduced, the friction generator can collect rainwater energy for realizing friction power generation in an auxiliary manner; the transparent friction generator is used as the solar cell protective plate without influencing the photoelectric conversion efficiency on one hand, and on the other hand, the transparent friction generator can collect rainwater energy from the nature. According to the novel composite energy apparatus, the single photovoltaic generation solar cell panel is expanded into the composite energy cell system, and the brand new composite type green energy apparatus is realized, so that the composite energy apparatus is high in actual application value.
Owner:BEIJING INST OF NANOENERGY & NANOSYST

Circular target real-time tracking method based on images

The invention discloses a circular target real-time tracking method based on images, wherein the method is used to solve the problem of poor tracking stability with a circular target when moved from a far position to a near position. The method comprises the following steps: at first, a Kalman filter is constructed according to a state equation and an observation equation of the circular target, the circle center coordinate and the radius obtained in the target capturing process are taken as the initial state of the filter, prediction information of the target in the current frame is established, and the search range is reduced; then, a tracking frame is constructed according to the prediction information, and images in the tracking frame are extracted through the fast Hoff gradient method to perform circular target detection to acquire the position information of the target in the current monment; and finally, the new position is taken as the observation value of the Kalman filtering process to update filtering parameters and updata target state estimation and error covariance matrix. The above steps are performed repeatedly to realize fast and effective circular target tracking in illumination variable and background confused scenes.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Bridge crane nonlinear control method based on anti-swing signal

A bridge crane nonlinear control method based on an anti-swing signal. Aiming at under-actuated bridge crane systems, the invention provides a nonlinear control method based on an anti-swing signal, which has good transient performance and load swing inhibition performance when compared with existing methods. The method comprises designing an anti-swing signal with anti-swing function, and constructing a novel positioning error signal based on the anti-swing signal; a control method is provided, which can be used for both adjusting control and trace tracking control. When compared with existing control methods, the control method not only widens the application scope of a controller, but also improves the system transient performance, and greatly improves the system control efficiency. Experiment results further verifies the control effect of the control method provided by the invention, and the control method has wide application prospects.
Owner:ZHEJIANG UNIV OF TECH

Method for modifying photocatalyst TiO2 by using WO3 and rare earth metal element La

The invention relates to a method for modifying a photocatalyst TiO2 by using WO3 and a rare earth metal element La. The method comprises the following steps: dispersing a precursor tetrabutyl titanate into a solvent absolute ethyl alcohol, performing a hydrolysis reaction to obtain nanometer TiO2 particles, and introducing a semiconductor material WO3 and a rare earth metal element La in a reaction process, wherein the mol ratio of the Ti:WO3:La is 100:(0-10):(1-6), and the WO3-La / TiO2 nanometer compound photocatalyst is uniform in size, better in dispersity, free from toxicity and secondary pollution, low in price of raw materials and stable in source, simple in synthesis process without secondary pollution, low in price and stable in source of raw materials, simple in synthesis process without pollution, excellent in performance, and wide in application range, can be repeatedly used, can be conveniently prepared into a powdery coating or other types of green environmental-friendly material, is applied to pollution removal and purification of various environments, and has a wide practical application value in the aspect of preparation of a photoelectric material or photocatalysis material.
Owner:SHANDONG UNIV

Method for preparing tungsten trioxide/titanium dioxide nanocomposite with core-shell structure

InactiveCN103191721AParticle size adjustmentControl photoelectricNanotechnologyMetal/metal-oxides/metal-hydroxide catalystsDextrose waterMicrosphere
The invention discloses a method for preparing tungsten trioxide / titanium dioxide nanocomposite with a core-shell structure. The method comprises the following processes of: transferring a dextrose water solution to a sealed container, obtaining carbon microspheres by hydrothermal reaction, then dispersing and soaking the carbon microspheres into an ethanol mixed solution of titanium tetrachloride and tungsten hexachloride, separating, cleaning and drying to obtain the carbon microspheres of absorbing titanium ions and tungsten ions, and finally burning the carbon microspheres to obtain the tungsten trioxide / titanium dioxide nanocomposite with the core-shell structure. The method is simple in process, low in synthesis cost, free of poison, and easy for realization of industrial large-scale production; and the obtained tungsten trioxide / titanium dioxide nanocomposite with the core-shell structure is uniform in size and good in dispersibility, and has wide practical application value in the aspect of preparation of a photoelectric material or a photocatalytic material.
Owner:TIANJIN UNIV

Shell powder putty and preparation method and application thereof

The invention provides shell powder putty and a preparation method and application thereof. The shell powder putty is prepared from shell powder, styrene-acrylic emulsion, modified mullite powder, active oxygen diluting agents, organic silane coupling agents, adhesion reinforcing agents, defoaming agents, gel agents, adhesives, composite inorganic micro powder, magnesium borate whiskers, sodium carboxymethylcellulose, heavy calcium carbonate and nano silicon dioxide. According to the shell powder putty, the good stability, adhesion strength, formaldehyde removing capacity, harmful gas removing capacity and appearance quality are achieved through selection and synergy of specific components, usage of the specific preparation method and the like, and therefore the very wide actual application value is achieved in the fields such as building, decorating and coating.
Owner:天津蓝海优贝科技有限公司

Fluorine-free antibacterial transparent superhydrophobic coating, preparation method and application thereof

The present invention is directed to the problems existing in the prior art, and provides a fluorine-free antibacterial transparent superhydrophobic coating and a preparation method thereof. The fluorine-free antibacterial transparent superhydrophobic coating provided by the invention comprises inorganic / organic nanoparticles modified by quaternary ammonium salt silane coupling agent, a thermoplastic elastomer and an organic solvent. The preparation method has the advantages of simple process, mild conditions and no complicated equipment. The coating can be applied to various substrates by spraying, dipping, etc., including hard substrates such as glass and polymer films, and soft substrates such as textiles and rubber. The resulting superhydrophobic coating has excellent mechanical / physical / chemical stability, antibacterial properties and superhydrophobicity.
Owner:SICHUAN UNIV

Micro-pore silicon carbide fiber and preparing method thereof

The invention relates to micropore carbofrax fiber and a process for preparation. Micropore carbofrax fiber is characterized in that the content of Si is 40-65 wt%, the content of C is 25-45 wt%, residual material is O, micropore carbofrax fiber takes continuous fibrous shape, the volume of micropore (pore diameter <= 2nm) accounts for more than 85 vol% of total pore volume, average pore size is 1.30-2.00nm, and specific surface area is 1100-2100m 2 / g. The process for preparation is characterized in that carbofrax fiber which is rich with C is firstly prepared by blending mixing, non-melting and cracking through poly carbon silicon alky and carbonaceous high polymer, then micropore carbofrax fiber is obtained through activating carbon removing technology. The volume of micropore of micropore carbofrax fiber of the invention has high content, and pore diameter is stable and hard to collapse, and has high specific surface area, high thermally insulating property and good oxidation resistance property, and the invention has good application prospect in the field of environmental control, energy storage, medical health and the like.
Owner:NAT UNIV OF DEFENSE TECH

Resonant grounding system high resistance grounding fault transition resistance identification method

The invention provides a resonant grounding system high resistance grounding fault transition resistance identification method. by using an over compensation role played by an arc suppression coil and in combination of advantages of transient signals, transient zero sequence current in a fault point is calculated and obtained by using transient zero sequence voltage of a bus and a fault line and the transient zero sequence current of any perfect feeder line, and thus, the transition resistance value is calculated. In comparison with the prior art, the zero sequence voltage of the system and the zero sequence current signal of each outgoing line are only needed, three-phase voltage and three-phase current signals are not needed, realization of the present small current grounding fault line selection device is facilitated, and influences of TV / TA transmission errors and imbalance do not exist. The technology has a wide practical application value in helping an operator with accuracy system analysis, line selection on high resistance grounding fault, positioning and distance measurement, and has important significance and important theoretical value in improving the action performance of a protective device against the transition resistance.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Method for controllably preparing nanometer compounds with core-shell structures on basis of adsorption driving force

The invention discloses a method for controllably preparing nanometer compounds with core-shell structures on the basis of adsorption driving force. The method includes carrying out adsorption and dispersion treatment on prepared ZIFs nanometer particles via different alcohol-water systems by the aid of porous structures and alcohol-water selective adsorption difference of the ZIFs nanometer particles, regulating systems by the aid of NaOH solution until the systems are weakly alkaline, catalytically hydrolyzing tetrabutyl orthosilicate to form mesoporous silicon dioxide on ZIFs surfaces and preparing ZIFs nanometer compounds coated by the mesoporous silicon dioxide by the aid of one-step processes under selective etching effects of weak alkali; allowing reaction products to stand still after reaction is completed, centrifuging and washing precipitates, and then drying the precipitates under vacuum conditions. Alcohol-water proportions can be adjusted and increased, accordingly, the sizes of inner cores of the nanometer compounds can be controllably adjusted by means of etching, and the bell-shaped core-shell structures with high specific surface areas can be formed. The method hasthe advantages that the nanometer compounds prepared by the aid of the method are good in dispersibility and hydrophilicity, uniform in morphology and particle size and high in medicine carrying ability, and the method includes simple processes and is high in repeatability.
Owner:BEIJING UNIV OF CHEM TECH

High-permeability pervious concrete cementing agent and preparation method and application thereof

The invention relates to a high-permeability pervious concrete cementing agent which is characterized by comprising the following components in parts by weight: 2-3 parts of furfural acetone resin, 100 parts of cement, 4-6 parts of epoxy resin, 1-2 parts of solidifying agent and 2-4 parts of toughening agent, wherein the cement is 42.5-grade ordinary portland cement; the furfural acetone resin comprises furfural and acetone; the epoxy resin is commercially available E-44; the toughening agent is polyurethane synthesized by utilizing water-soluble toluene 2,4-diisocyanate and trimethylolpropane; the solidifying agent is mixed polyamine of m-xylylenediamine and epoxy chloropropane at a ratio of 1:1. The invention also relates to a preparation method of the high-permeability pervious concrete cementing agent and application of the high-permeability pervious concrete cementing agent in a pervious concrete product. The high-permeability pervious concrete cementing agent disclosed by the invention has the advantages of very good compressive strength and permeability and very high practical value and can meet various requirements on the perviousness of the pervious concrete.
Owner:NORTHEAST DIANLI UNIVERSITY

Neural network structure search method applied to picture multi-attribute prediction

The invention discloses a neural network structure search method applied to picture multi-attribute prediction, which is used for searching the optimal neural network structure in picture multi-attribute prediction problem. The method comprises the following steps: acquiring a picture multi-attribute prediction data set for training the neural network and defining a training target; Greedy searchfor the optimal neural network structure; The parameters of the neural network are retrained and the properties of the new input image samples are predicted. The invention is applicable to the automatic search of the neural network structure of the multi-attribute prediction problem of the real picture, and has better effect and robustness in the face of various complex situations.
Owner:ZHEJIANG UNIV

Web data processing method based on form concept analysis

The invention relates to a Web data processing method based on formal concept analysis. The method comprises the steps of analyzing the latent semantic relation of Web services on each granularity level by using the prior Web service describing information, expressing the relation between the services by using a concept lattice so as to realize concept grouping of the Web services, and providing an increment maintenance method for a service lattice to realize Web service management. A reduction method for the service lattice is provided through research on the similarity of the services under the condition of gradual increment of Web service quantity and category in Internet environment. The established service lattice carries out service search according to service request.
Owner:FUDAN UNIV

Wireless electromagnetic coverage area calculation method under line-of-sight communication

The invention provides a wireless electromagnetic coverage area calculation method under line-of-sight communication. The method comprises the following steps of: resolving a sight distance communication radio frequency coverage area under different altitudes by matching terrain height data according to the longitude and latitude, height of a central point and a maximum unshielded communication distance; the method can meet the calculation requirements of a radio station transmitting electromagnetic coverage area in a laboratory and in a practical application process, and can quickly and efficiently assist a user in positioning and checking whether communication interruption is caused by a space shielding problem or not according to a calculation display result of the electromagnetic coverage area. According to the method, whether the reason of actual line-of-sight communication interruption is caused by space shielding can be effectively and visually analyzed in an assisted manner; aconvenient and effective technical means is provided for eliminating space occlusion, so that the space occlusion problem in the sight distance communication process is changed from the original subjective qualitative analysis to the quantitative analysis supported by the data analysis result.
Owner:NO 20 RES INST OF CHINA ELECTRONICS TECH GRP
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