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177results about How to "Ensure synergy" patented technology

Gradient-pore silicon nitride and silicon carbide combined film tube and preparation method therefor

The invention belongs to the field of porous ceramic materials and particularly relates to a gradient-pore silicon nitride and silicon carbide combined film tube and a preparation method therefor. The film tube material is prepared from silicon nitride and silicon carbide, and a gradient filtering structure is formed by a supporting body layer and a surface film layer; a supporting body is formed through combining silicon nitride produced from a reaction with coarse silicon carbide grains and has the average pore size of 10 to 80 microns, the surface film layer is formed through combining the silicon nitride produced from the reaction with fine silicon carbide grains and has the average pore size of 0.1 to 20 microns, and the overall porosity of the film tube is 35% to 50%. The preparation method sequentially comprises the steps of carrying out batching, forming the supporting body, preparing the film layer and carrying out firing, wherein the forming is carried out by adopting isostatic pressing, the forming pressure is controlled to 40MPa to 150MPa, the firing temperature is controlled to 1,400 DEG C to 1,650 DEG C, and the heat preserving time is 3 to 5 hours. The film tube can be used in an oxidative atmosphere, can also be used in a reducing atmosphere, is high in acid-alkali corrosion resistance and can be applied to the filtering and purifying of various high- and low-temperature fluids of coal gasification chemical industry, IGCC and PFBC coal-gasified power generation, high-temperature flue gas, automobile exhaust gas, water purification and the like.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

Aero-engine reliability monitoring method based on mixed weibull distribution

InactiveCN103020438ARealize performance degradation value monitoringReal-time dynamic grasp of reliability levelSpecial data processing applicationsAviationLower limit
The invention relates to an aero-engine reliability monitoring method based on mixed weibull distribution, and the method comprises the following steps of extracting state monitoring information and performance degradation information of an aero-engine which is already replaced and repaired; extracting a relation between each monitoring parameter and the performance degradation of the aero-engine by utilizing a support vector method, and realizing the monitoring of the performance degradation value of a wing engine; utilizing a degradation model to describe the accumulated degradation volume of the aero-engine on the basis of the monitoring result of the real-time degradation value of the wing aero-engine; estimating a random parameter in a linear degradation model of the aero-engine, and determining the variation of the random parameter and the upper limit and the lower limit of the accumulated performance degradation volume of the aero-engine; establishing an aero-engine reliability monitoring model based on the dual-parameter mixed weibull distribution; utilizing a maximal likelihood method to give an expression of each parameter in the aero-engine reliability monitoring module; estimating hyper-parameters of the aero-engine reliability monitoring module based on the dual-parameter mixed weibull distribution; and calculating the reliability monitoring value of the aero-engine, and realizing the real-time and precise reliability monitoring of the aero-engine.
Owner:PEOPLES LIBERATION ARMY ORDNANCE ENG COLLEGE

Fiber reinforce plastic (FRP) reinforced concrete-filled steel tube combination column

The invention aims at providing a fiber reinforce plastic (FRP) reinforced concrete-filled steel tube combination column which comprises a steel tube, a hoop rib, an FRP reinforced rib and a longitudinal reinforcement, wherein the hoop rib and the FRP reinforced rib are arranged in the steel tube; the inner wall of the steel tube is provided with fixed angle iron; the end part of the FRP reinforced rib is fixed on the angle iron; the FRP reinforced rib is provided with a hole, and the hoop rib passes through the hole in the FRP reinforced rib; the longitudinal reinforcement is fixed on the hoop rib; the steel tube is filled with concrete. An FRP reinforced rib plate internally provided with the hoop rib and the longitudinal reinforcement is arranged in the FRP reinforced concrete-filled steel tube combination column, and the concrete can be separated again, so that the restraint effect of the concrete is improved, the bearing capacity of the concrete is improved, and the tube wall on the stressed side is effectively prevented from being bended. By adopting a structure of enabling reinforced concrete, the FRP reinforced rib and the steel tube to cooperative work, the FRP reinforced concrete-filled steel tube combination column is simple in structure and convenient to construct, and has the characteristics of being light in weight, high in carrying capacity and good in ductility and shock resistance.
Owner:HARBIN ENG UNIV

Electric power operation and maintenance remote guidance system

The invention discloses an electric power operation and maintenance remote guidance system. The system comprises a remote server, a smart phone and AR glasses; the smart phone is connected with the remote server and the smart phone; the remote server is provided with a background management system; the background management system is used for storing database information related to power equipmentand an operation and maintenance expert knowledge base and has a power equipment image recognition technology. The remote guidance system has a fault detection operation and maintenance mode and canshoot appearance image information of the power equipment; the name, the model and the fault reason of the power equipment are analyzed through the image recognition technology; and the equipment dataand expert knowledge base are provided. The remote guidance system has a remote assistance mode; a plurality of remote experts can check real-time on-site operation and maintenance scenes and guide on-site operation and maintenance personnel by using characters, images and tracking marks, the operation standard of the operation and maintenance personnel is improved, the working process is standardized, and the operation and maintenance efficiency of the power equipment is improved.
Owner:南京太司德智能电气有限公司

Automatic landing and recovery system for unmanned aerial vehicle under complex dynamic bump conditions

The invention discloses an automatic landing and recovery system for an unmanned aerial vehicle under the complex dynamic bump conditions. The automatic landing and recovery system utilizes a binocular camera mounted on the unmanned aerial vehicle to position a landing platform, and guides the unmanned aerial vehicle to be landed towards the landing platform; and the landing platform with the adjustable posture is mounted on a carrier, the carrier detects the posture of the unmanned aerial vehicle, the table face posture of the landing platform is adjusted based on the posture of the unmannedaerial vehicle, thus the posture of the landing platform is matched with posture of the unmanned aerial vehicle during landing, the landing process of the unmanned aerial vehicle is more stable and reliable, and the limitation of a traditional unmanned aerial vehicle free landing technology on the landing platform in a stable motion state is relieved. According to the automatic landing and recovery system, the landed unmanned aerial vehicle is further fixed through an electromagnet, thus the unmanned aerial vehicle is parked firmly and does not fall along with movement of the landing platform,the unmanned aerial vehicle can be released to take off at any time by controlling the electromagnet, and the problem that the unmanned aerial vehicle cannot move stably along with the carrier afterbeing landed is solved.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Method and system for decomposing threat dispose strategy in network

ActiveCN109413088ARealize automatic decompositionGood control effectTransmissionDecompositionNetwork management
Embodiments of the invention provide a method and a system for decomposing a threat dispose strategy in a network. The method comprises the steps of: determining a threat dispose area according to a threat dispose strategy, a network topological structure, a threat feature and an asset feature; determining a candidate dispose object of the threat dispose area and a second linkage relationship setthereof according to the threat feature, a dispose object capability and a first linkage relationship set; decomposing a security guarantee target according to a security guarantee target decomposition mapping relationship, a target priority, a target achievement degree, a target achievement cost and available resources, so as to obtain a security guarantee sub-target of the threat dispose area; and decomposing a dispose command in the threat dispose strategy and / or determining a dispose object according to the candidate dispose object and the second linkage relationship set thereof, the security guarantee sub-target, the dispose object capability, the threat feature, a dispose cost and a dispose effect. Through adoption of the method of the invention, unified management and control for equipment of the whole network, threat differentiated linkage dispose and collaborative response are achieved, and a network management and control capability is improved.
Owner:INST OF INFORMATION ENG CHINESE ACAD OF SCI

Swaging and limiting device for track board of ballastless track of railway

The invention provides a swaging and limiting device for a track board of a ballastless track of a railway. The device comprises a swaging body of which both ends are respectively swaged on an upper base plate and an lower base plate, and a pull rod which is used for fixing the swaging body, wherein a penetrating hole is formed in the swaging body, a curve groove is formed in the upper end of the penetrating hole, and an opening of which the inner diameter is extended is formed in the lower end of the through hole; the device further comprises a rotating component which is used for matching with the curve groove in a rotary manner, and the pull rod penetrates through an upper hole site of the rotating component and the penetrating hole of the swaging body to be connected with the track board or a base board; and the swaging body is locked by the upper end of the pull rod through a bolt. The swaging and limiting device disclosed by the invention is mounted outside a structure without damaging the track structure, the stress is clear, synergistic reaction between the track board and the base board is ensured, and the mounting, the checking and the exchange of all components are convenient; and after upwarp defect of the ballastless track structure is repaired, the limiting device can also be dismantled to enable the ballastless track structure to restore an original state, and the security and the ride comfort of high-speed railways and the lateral stability of lines are ensured.
Owner:RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI

Pure foam silicon carbide support membrane tube with three-gradient pore structure and preparation method

Belonging to the field of porous ceramic materials, the invention in particular relates to a pure foam silicon carbide support membrane tube with a three-gradient pore structure and a preparation method thereof. According to the foam silicon carbide support membrane tube, a dual-gradient pore structure pure foam silicon carbide support and a surface film layer form a three-gradient filtration structure, the support is composed of a dual-gradient pore structure pure foam silicon carbide support, the average pore size of the outer layer is 300-500micrometers, the average pore size of the inner layer is 1-3mm, and the support porosity is 35-65%; the surface film layer is formed by combination of silicon carbide powder, the pore size is 50nm-20micrometers, and the film layer porosity is 35%-50%. The preparation method comprises the following steps in order: burdening, foam support molding, support sintering, film layer preparation and firing. The pure foam silicon carbide support membrane tube provided by the invention can be used in oxidizing atmosphere and reducing atmosphere, has strong acid and alkali corrosion resistance, and can be used for coal gasification chemical engineering and IGCC, PFBC coal gasification power generation, high temperature flue gas, automobile exhaust, water purification and other high and low temperature fluid filtration purification.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

Preparation method for full carbon fibre composite paper

The invention discloses a preparation method for full carbon fibre composite paper. The method comprises the following steps: pulping plant fibres; performing dipping treatment on carbon fibres with an organic solvent; treating the carbon fibres with a concentrated acid or a concentrated alkali; performing ultrasonic treatment on the carbon fibres which are treated with the acid or the alkali in a first coupling agent; soaking the plant fibres, which are subjected to pulping treatment, with a second coupling agent; adding water and defibering the treated carbon fibres and the treated plant fibres in a fluffer together; adding a dispersing agent into the fluffer and defibering the dispersant and the fibres together; and manufacturing paper with pulp and forming the paper pulp by using a Kothen method automatic paper making system, and squeezing and drying to obtain synthesized fibres; carbonating the obtained synthesized fibres in the environment with the protection of high-temperature nitrogen. The full carbon fibre composite paper prepared by the preparation method has relatively high finished paper uniformly, high mechanical strength, relatively high heat resistance and high electrical conductivity, and solves the difficult problem that the full carbon fibre paper cannot be made by adopting a conventional method.
Owner:SOUTH CHINA UNIV OF TECH

Gait correction method and device for biped robot and computer equipment

The invention provides a gait correction method and device for a biped robot and computer equipment. The method comprises the steps: the current supporting posture of a current supporting leg of the biped robot is obtained by a system in the movement process, and then the relative posture between the supporting legs is obtained through calculation according to the current supporting posture and the ideal supporting posture preset in the next step; corrected gait parameters of the next step are calculated by the system according to the relative posture between the supporting legs in the two steps and the joint distance between the left ankle joint and the right ankle joint in the initial state when the biped robot stands; and finally, the next supporting leg is controlled by the system to move according to the corrected gait parameters. In the moving process, the system monitors the foothold of the biped robot in real time and adjusts the gait parameters of the biped robot in the next step according to a preset algorithm, so that the ideal foothold position of the biped robot is tracked in real time in the moving process, preset path deviation caused by motion errors is avoided, andthus the collaboration of the multi-biped robot formation in the movement process is ensured.
Owner:UBTECH ROBOTICS CORP LTD

Surface paint spraying device for tubular connection part for architectural engineering

The invention relates to the technical field of architectural engineering related equipment and provides a surface paint spraying device for a tubular connection part for architectural engineering. The surface paint spraying device aims to solve the problems that paint is sprayed manually during existing paint spraying work, certain harm is generated to human bodies, paint is liable to be sprayedunevenly on a workpiece, automatic paint spraying devices on the market are long in treatment time, equipment is complex, cost is high, clamping operation for pipe fittings is cumbersome, and production efficiency is lowered. The surface paint spraying device comprises a base box and a plurality of support legs installed at the lower end of the base box. Two C-shaped side edge plates are symmetrically installed on the two sides of the upper end of the base box through unit bolt nuts, and a paint spraying chamber is arranged at the upper ends of the two C-shaped side edge plates. A conveying mechanism is arranged between the two C-shaped side edge plates. An electrostatic dust collection mechanism, a paint spraying mechanism and a hot air drying mechanism are arranged sequentially from leftto right in an inner cavity of the paint spraying chamber in the movement direction of the conveying mechanism. The surface paint spraying device is especially suitable for spraying paint for the tubular connection part and has high social use value and application prospects.
Owner:戚崇圆

Architecture management and control system and equipment for informatization construction

The invention discloses an architecture management and control system and equipment for informatization construction, and relates to an informatization management and control system and equipment. The invention aims to solve the problems of low data extraction efficiency, low utilization efficiency and the like in an informatization construction process due to the fact that data in different source systems cannot be processed in the current electric power field. According to the system, foreground and background separated development, background interface and foreground modularization are adopted in the technical architecture to embody micro-service application; the system comprises a data layer, an analysis layer and an application layer. The data layer is used for extracting data in a source system to a data center; the analysis layer comprises a knowledge intelligent search module, and the knowledge intelligent search module is used for providing service search, analysis and visualization related service components; and the application layer comprises an application function subunit, and the application function subunit has functions of data storage, calculation and service components through a cloud platform. The system is mainly used for informatization management and control of a power system.
Owner:STATE GRID ANHUI ELECTRIC POWER CO LTD

Special biological slow-release compound fertilizer for cotton and production method of compound fertilizer through melt granulation in high prilling tower

The invention relates to a special biological slow-release compound fertilizer for cotton and a preparation method thereof. The special biological slow-release compound fertilizer for cotton is prepared from the following raw materials: 280-310 parts of urea, 300-350 parts of potassium chloride, 150-200 parts of monoammonium phosphate, 70-120 parts of biological humic acid, 10-15 parts of chelation medium and trace elements, 30-50 parts of double superphosphate, 4-10 parts of sodium borate, 15-75 parts of nano carbon and 0.2-0.5 part of an auxiliary slow-release agent which is polyvinyl alcohol or urea formaldehyde and is selectively used according to different areas. The invention also relates to a preparation method of the compound fertilizer. The special biological slow-release compound fertilizer for the cotton is complete in nutrients; nitrogen and potassium nutrients have slow-release properties; the compound fertilizer can conform to the nutrient absorption law of the cotton, has effects of promoting and regulating growth of the cotton, and is capable of improving cotton yield and fiber quality and effectively reducing occurrence rates of cotton premature senescence and greensickness; the cotton planting benefit is increased; meanwhile, the utilization rate of the slow-release fertilizer is increased.
Owner:史丹利化肥当阳有限公司

On-line automatic moisture determining system

The invention relates to an on-line automatic moisture determining system. The on-line automatic moisture determining system comprises: a tray supplying device, which is used for supplying a tray loaded with a sample; a sampling device, which is used for acquiring the sample and placing the sample into the tray; a sample receiving device, which is used for placing a sample tray and completing primary weighing of the sample; at least one moisture determining device, which is used for accurately weighing, drying and determining the moisture of the sample; and a manipulator device, which is usedfor taking and conveying the tray and the sample among the tray supplying device, the sample receiving device and the moisture determining device. The on-line automatic moisture determining system provided by the invention realizes full automation of moisture determination, and can sequentially complete or adjust a sequence to complete the processes of conveying and grasping of sample bottles, theprocesses of supplying of the samples under vibration and weighing and spreading of the samples, the tray-supplying process of supplying of the sample tray, and the moisture-measuring processes of weighing, drying and moisture determination; and the on-line automatic moisture determining system provided by the invention can realize on-line total moisture determination, reduces labor intensity andimproves work efficiency.
Owner:JIANGXI GUANGMING INTELLIGENT TECH CO LTD
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