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218results about How to "Improve resilience" patented technology

Surface-modification three-dimensional-network-carbon-fiber-reinforced composite material and preparing method

The invention discloses a surface-modification three-dimensional-network-carbon-fiber-reinforced composite material and a preparing method.Three-dimensional carbon fiber frameworks with different bore diameters are prepared as required, and after surface pretreatment, diamond, carbon nanometer tubes and graphene are subjected to chemical vapor deposition; then the mixture and matrix materials are compounded, wherein the matrix materials are metal or polymers; the carbon-fiber-reinforced metal-based or polymer-based composite material with the three-dimensional net-shaped framework structure is obtained.A three-dimensional continuous heat conduction channel is formed in the composite material through the surface-modification three-dimensional net-shaped carbon fibers, and therefore the heat conduction performance of the composite material is greatly improved; meanwhile, according to space distribution of carbon fibers in the matrix material, the mechanical performance of the composite material can also be improved, and the density and the thermal expansion coefficient can be decreased; the thermal expansion coefficient, the mechanical performance and the thermal performance can be further regulated and controlled by adding zero-dimensional particle reinforcement.
Owner:CENT SOUTH UNIV

Two-in-one water-soluble nail painting and protecting membrane solution

The invention relates to a two-in-one water-soluble nail painting and protecting membrane solution. The solution is prepared by taking modified water-borne resin and a water-soluble compound as a base stock and mixing the base stock with a water-borne dispersant and a colour development substance. The two-in-one water-soluble nail painting and protecting membrane solution is non-toxic, tasteless,environmentally-friendly and safe. The water-soluble components in the solution are absorbed rapidly compared with that in air, therefore, highly difficult technical problems, such as quick drying, no fear of hot water soak and friction, high hardness, strong adhesive force, excellent solvent resistance, scratch resistance and scrape resistance, high fullness, good effects on protecting light andcolour (a 60-degree incoming method and a mirror surface with a special bright surface on which highlight is more than or equal to 90), heat resistance and cold resistance (temperature resistance is from -25 DEG C to +90 DEG C for 96 h continuously, and the solution can be normally used at room temperature) during transporting and storing, are completely solved in the same time,. In addition, thetwo-in-one water-soluble nail painting and protecting membrane solution has the characteristics of capability of regulating colours, alternating colours, mixing colours, or colour-painting nails, mobile phones, teacups or the surfaces of other living objects according to the favour, and the like. The two-in-one water-soluble nail painting and protecting membrane solution can be washed away by an ester or alcohol solution after being painted on nails.
Owner:广州绿徽新材料研究院有限公司

MEMS weapon security apparatus

An MEMS weapon security apparatus includes a monocrystalline silicon substrate, the monocrystalline silicon substrate is sequentially provided with a silicon dioxide insulation layer and a monocrystalline silicon structure layer, the monocrystalline silicon substrate is also provided with a circular acceleration bore hole, and a bayonet pin mechanism, a pawl mechanism and a separation mechanism are made in the monocrystalline silicon structure layer, wherein the movable bayonet pin in the bayonet pin mechanism, the pawl in the pawl mechanism and the explosion-proof separation plate in the separation mechanism are engaged through a tooth-shaped structure, the explosion-proof separation plate shields the acceleration bore hole and is connected with the monocrystalline silicon structure layer through an S-shaped silicon spring, a flyer hole and the acceleration bore hole are arranged in an offset manner, the bayonet pin mechanism and the pawl mechanism are respectively driven by a thermoelectric effect, a V-shaped thermoelectric executor generates certain thermal deformation under a corresponding work voltage, and a lever amplifies the thermal deformation and uses the amplified thermal deformation to drive the bayonet pin and the pawl to complete corresponding actions. The MEMS weapon security apparatus has the advantages of low cost, high intelligence and easy integration.
Owner:XI AN JIAOTONG UNIV

Semi-active electromagnetic particle damping shock absorber for railway vehicle

The invention discloses a semi-active electromagnetic particle damping shock absorber for a railway vehicle, and belongs to the technical field of vehicle shock absorption. A certain shock absorption effect is achieved on transverse vibration and longitudinal vibration while vertical shock absorption is provided. The semi-active electromagnetic particle damping shock absorber comprises an upper cover plate type connector, a lower cover plate type connector, a rubber spherical hinge, pin shafts, an external round spring, a shell, shock absorption particles, wear-proof metal separation layers and inductance coils. The shell is divided into an upper groove and a lower groove, the wear-proof metal separation layers are arranged in the upper groove and the lower groove, the shock absorption particles of a certain volume and lubrication oil of a certain amount are arranged in the separation layers, and the inductance coils are arranged in the wear-proof metal separation layers and the grooves. The upper connector is fixedly connected with one end of the shell. The lower connector and the other end of the shell are welded. The rubber spherical hinge and the pin shafts are assembled, and the shock absorber and a bogie are connected together according to standards. Through the damping effect generated by collisions between the particles and collisions between the particles and the wall of the shell, vibration transmission from wheels to a framework is rapidly attenuated, and the good shock absorption effect in different directions is achieved. Meanwhile, the size of an electrification magnetic field can be changed according to changes of a running line, then the damping value of the shock absorber is changed, semiautomatic control over the damping effect is achieved, high reliability and large safety redundancy are achieved, and the semi-active electromagnetic particle damping shock absorber adapts to various severe environments.
Owner:TONGJI UNIV

Eyebrow penciling robot system based on robot vision and control method thereof

The invention discloses an eyebrow penciling robot system based on robot vision and a control method thereof. The control method comprises the steps that images of the left portion and the right portion of a human face are obtained by adopting binocular vision; through target calibration, intrinsic parameters and extrinsic parameters of a camera are obtained, and pixel coordinates of the images ofthe left portion and the right portion are converted into space coordinates relative to a camera virtual point; through hand-eye calibration, the relational matrix between the camera and the tail endof a mechanical arm is solved; ten groups of pixel coordinates are obtained by solving face key points, and space coordinates of eyebrow points relative to the camera virtual point are obtained by means of the ten groups of pixel coordinates through a stereoscopic conversion formula; and then the space coordinates relative to the camera virtual point turn into mechanical arm tail end coordinatesthrough hand-eye conversion, and an eyebrow pencil at the tail end of the mechanical arm can be made to reach a designated position to complete eyebrow penciling action by means of a mechanical arm control algorithm. The accuracy of an eyebrow penciling robot is improved.
Owner:ZHEJIANG UNIV CITY COLLEGE

Saline-alkali soil morchella culturing method

The invention belongs to the technical field of edible fungi cultivation and particularly relates to a saline-alkali soil morchella culturing method. The saline-alkali soil morchella culturing methodis implemented through the following steps of (1) seed fungi selection, (2) seed fungi preparation, (3) cultivation facility preparation, (4) ground processing, (5) sowing and nutrition supplementation, (6) construction of small greenhouses, (7) fruiting and harvesting management and (8) fungi residue returning. By means of the saline-alkali soil morchella culturing method, the adaptability of mycelia can be enhanced; a three-layer greenhouse culture mode is applied for the first time to facilitate temperature control and shorten the culture time; supplementation of culture mediums facilitatesrapid growth restoration of the mycelia; an applied bag arranging manner can simplify culture processes and save labor and material costs. The saline-alkali soil morchella culturing method can effectively reduce the salinity content of soil; fungus growth can improve the soil structure, avoid re-salinization and improve the pH environment of soil; nutrient bags are returned to fields to improve the content of organic matters in soil and accordingly improve the fertility of soil, the land utilization rate as well as the economic benefits of morchella.
Owner:QINGDAO AGRI UNIV

CoCrNi particle enhanced magnesium matrix composite and preparation method thereof

The invention discloses a CoCrNi particle enhanced magnesium matrix composite and a preparation method thereof. The CoCrNi particle enhanced magnesium matrix composite comprises the following components in percentage by mass: 2%-15% of CoCrNi alloy powder and the balance of Mg powder and magnesium alloy powder. The high-performance CoCrNi particle enhanced magnesium matrix composite is prepared by adopting a sintering technology of a discharge plasma furnace; in the composite, CoCrNi particles can be uniformly distributed on a magnesium matrix, the bonding force of CoCrNi and the magnesium matrix is high, no reactants are generated when CoCrNi reacts with the magnesium matrix, the interface between the composites is not polluted, and the crack propagation in the magnesium alloy can be effectively delayed. The CoCrNi particles have relatively high plasticity, and can induce the formation of nanometer twins under the stress, and the fracture toughness, the strength, the plasticity and the strain strength of the magnesium matrix composite are enhanced. The preparation method is simple and easy to operate, the device is simple and convenient to operate, raw materials are cheap and easy to obtain, the cost is low, the industrial mass production is realized easily, and the application prospect is good.
Owner:CHONGQING UNIV

Three-season enhancement and releasing method for salmons in spawning area rivers

The invention belongs to the technical field of proliferation and maintenance of fishes, and discloses a three-season enhancement and releasing method for salmons in spawning area rivers. The salmonsare highly anadromous fishes, and are artificially migrated to river sections with functions of a spawning area or branch water areas of the river sections for enhancement and releasing, a preferablespecific optimized upstream migration route capable of arriving at the spawning area is designed and selected for returning to the community (parent fishes), and propagation of generations of proliferation groups is realized; salmon releasing groups such as fertilized eggs or eyed eggs, juvenile fishes and parent fishes at different fresh water life history stages are migrated to spawning area rivers with suitable habitats, enhancement and releasing are carried out at three seasons including the winter, the spring and the autumn, and the diversity and the adaptability of the proliferation groups are improved. By the method of manually assisting in field incubation of fish eggs and natural proliferation of parent fishes, investment of enhancement and releasing infrastructure construction ofthe fishery can be reduced, the occupied area of permanent work is reduced, and the production cost for artificial incubation of juvenile fishes with the equal releasing number is saved.
Owner:HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI

Antioxidation SOD oral spray and preparing method thereof

The invention relates to an antioxidation SOD oral spray. The oral spray is prepared, by weight, 0.1-2.0% of superoxide dismutase (SOD), 1.0-5.0% of vitamin C, 1.0-3.5% of trehalose, 0.2-1.0% green tea extract and others is distilled water. The preparing method comprises the steps of 1, weighing each raw material of the formula ratio respectively; 2, dissolving the vitamin C, the green tea extract EGCG and the trehalose into the distilled water and filtering, adopting conventional high temperature sterilization method and cooling to below 25 DEG C to get mixed liquor; 3, adopting conventional radiation sterilization method for SOD and placing the sterilized SOD into the mixed liquor made in step of 2 under the sterile working environment, mixing and dissolving to get mixed enzyme solution; 4, canning the mixed enzyme solution into a spraying bottle with quantitative valves to get the antioxidation SOD oral spray and store the antioxidation SOD oral spray below 25 DEG C. The antioxidation SOD oral spray and preparing method thereof make use of mutual protection and interaction between the SOD and the vitamin C and between the green tea extract EGCG and the trehalose to make the oral spray with good stability, antioxidant and anti-aging functions. The oral spray is absorbed directly by the sublingual mucosa, conveniently to take, improving bioavailability and efficacy of SOD significantly with wide and broad market in future.
Owner:陈石良
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