105 results about "Biomimetic design" patented technology

The invention discloses a liquid metal enhanced triboelectric material with a bionic surface and a preparation method of the liquid metal enhanced triboelectric material, and belongs to the technical field of triboelectric materials. The preparation method comprises the following steps: mixing an interface stabilizer TEMPO oxidized nanocellulose with a liquid metal gallium-indium alloy to obtain TOCNF (at) LM liquid metal-based micro-nano liquid drops; and doping the obtained TOCNF-coated LM liquid metal-based micro-nano liquid drops into a base material waterborne polyurethane, and constructing a bionic rose petal micro-mastoid process structure by adopting a template method, so as to obtain the liquid metal enhanced triboelectric material with a bionic surface. The composite material with the rose petal micro-nano structure is prepared through bionic design, the micro-mastoid structure of rose petals is successfully re-carved, and the triboelectric property of the waterborne polyurethane is remarkably improved by utilizing TOCNF at LM liquid metal-based micro-nano liquid drops, so that the open-circuit voltage of the prepared composite material reaches 250V, the short-circuit current reaches 8.19 mu A, and the triboelectric property of the waterborne polyurethane is remarkably improved. The short-circuit transfer charge quantity reaches 95nC, and theoretical and practical guidance is provided for the design of a high-performance triboelectric material.

The present invention discloses a memristor pulse neural network system and method, which belongs to the field of artificial intelligence technology. The memristor pulse neural network system provided by the present invention uses a bionic design concept to accurately simulate the synaptic structure of a biological neural network by connecting pairs of memristors of the same level in series; based on the positive and negative Hebbian plasticity rules, an adaptive learning mechanism is implemented to strengthen the computing function of the memristor's storage and computing performance; a cascaded scalable control architecture combining master control and slave control is adopted to give the system a high degree of scalability. According to the needs of specific tasks, users can flexibly adjust the scale of the neural network to achieve unlimited cascade expansion, thereby easily coping with various complex scenarios. In addition, the built-in ADC acquisition module provides a real-time feedback mechanism, which can improve the accuracy of system monitoring, speed up the response speed, and provide valuable data support for system optimization and adjustment.

The invention discloses a vibration reduction bionic boring bar based on hedgehog thorns and biological eggshells, and relates to the technical field of boring bars, the vibration reduction bionic boring bar comprises a boring bar body, a cavity is formed in the boring bar body, the bionic eggshells which are transversely distributed at equal intervals are fixed in the cavity, and longitudinal reinforcing ribs are fixed in the bionic eggshells; the first transverse reinforcing rib, the second transverse reinforcing rib, the third transverse reinforcing rib and the longitudinal reinforcing rib which are designed based on hedgehog thorn bionics are fixed in the boring bar body, so that buckling and damage of the boring bar body are delayed, and the boring bar has an excellent external force resisting effect; the bionic eggshell which is designed in a bionic mode based on the thin shell structure of the biological eggshell is fixed in the boring rod body, so that stress distribution in the boring rod body is more uniform, the stress concentration effect is smaller, the mechanical efficiency is improved, and compared with an existing common solid boring rod, the effects of improving rigidity and reducing vibration are achieved; the vibration problem of the boring rod can be effectively solved, and the boring machining precision and machining efficiency are guaranteed.

The invention belongs to the technical field of chemical separation, and relates to a bionic on-demand emulsion separation membrane which is formed by compounding a normal beetle wettability fiber layer and an anti-beetle wettability fiber layer, and the two layers form a stable laminated structure through mechanical entanglement of fibers, the thickness of the normal beetle wettability fiber layer and the thickness of the anti-beetle wettability fiber layer are both 0.2-500 micrometers, and the thickness ratio of the normal beetle wettability fiber layer to the anti-beetle wettability fiber layer is 1: 0.2-5. The invention also discloses a preparation method of the bionic on-demand emulsion separation membrane. According to the invention, bionic design and asymmetric wettability technology are utilized to realize high-efficiency treatment of oil-containing wastewater. The method has the advantages that the separation effect is improved by a bionic synergistic demulsification mechanism; multiple types of emulsions are efficiently separated, energy consumption is low, and external stimulation is not needed; the bionic synergistic demulsification mechanism based on positive beetle wettability and anti-beetle wettability is achieved, the separation effect is remarkably improved, the advantage of performance integration is achieved, and efficient on-demand separation of water-in-oil emulsion and oil-in-water emulsion through a single membrane material is achieved.

The invention discloses a nonlinear path planning method for a melt electrostatic direct writing stent guided by micropore characteristics, and relates to the technical field of additive manufacturing. Comprising the following steps: according to design requirements, defining binary functions L (x, y) and W (x, y), and respectively controlling spatial distribution of pore length and width of micropores; an XY plane is divided into orthogonal reference line grids through two groups of equidistant reference lines parallel to an X axis and a Y axis, namely an X (y) line and a Y (x) line, and each reference line can determine an upright plane, namely an X (y) plane and a Y (x) plane; and then determining geometric intersection points of the L / 2 (x, y) and W / 2 (x, y) function curves and an X (y) plane and a Y (x) plane determined by the reference line as path intersection points by using zigzag broken lines, after all the intersection points are obtained, sequentially connecting the intersection points to obtain a designed nonlinear path, and carrying out feasibility verification on the generated nonlinear path. The method provides a parameterized solution for micro-structure bionic design of the MEW stent, and is suitable for stent manufacturing with complex tissue regeneration requirements.

The utility model discloses a bionic machine framework, and belongs to the technical field of bionic equipment. The device mainly comprises a main rod and a bionic flight mechanism arranged on the main rod, the main rod is rectangular, and a first fixing frame, a controller mounting frame and a battery mounting frame are sequentially arranged on the main rod in the length direction of the main rod. According to the bionic machine framework, the use of redundant materials is reduced through the rectangular and tubular main rods, the overall weight is reduced through reasonable arrangement of the weight reduction grooves and the weight reduction holes, and secondly, unnecessary material consumption is effectively reduced through the distributed weight reduction grooves in the structural design of the controller mounting frame and the battery mounting frame, so that the cost is reduced. Especially, the battery mounting frame is distributed through symmetrical second weight reduction grooves, the weight is reduced, the overall stability of the framework is improved, through the optimized design, it is ensured that the bionic machine is light in weight, meanwhile, the bionic machine still has enough stability and strength, and the advantages of bionic design can be brought into full play.

This invention provides a genetically engineered biomimetic microsphere for hydration remodeling, its preparation method, and its application, belonging to the field of biomedical technology. This invention develops an injectable composite system, GBA / SRGN@HADA@GelMA, which possesses the ability to regulate hydration and intervene in genes through interface biomimetic design and multi-level functional integration. It uses HADA as a moisturizing outer layer, provides mechanical support through GelMA microspheres, and achieves targeted delivery of SRGN siRNA through G5-GBA loading, thereby achieving synergistic regulation of the degenerative nucleus pulposus microenvironment. GBA / SRGN@HADA@GelMA reduces the expression of inflammatory factors and matrix degradation genes, and significantly promotes the accumulation of HA and lubricating proteins. This enhances the water retention capacity and interfacial lubrication of the nucleus pulposus, thereby improving compressive elasticity and energy absorption capacity. This invention is the first to combine continuous water regulation, lubrication, mechanical buffering, and extracellular matrix homeostasis regulation to synergistically delay intervertebral disc degeneration, providing an excellent treatment strategy for degenerative intervertebral disc diseases.

The invention belongs to the field of new energy material synthesis and electro-catalysis, and particularly relates to a chiral molecule coupling layered hydroxide catalyst and a preparation method and application thereof. The invention innovatively provides a synergistic strategy fusing chiral molecular engineering and a bionic design principle to improve the oxygen evolution performance of the nickel-iron layered hydroxide, a one-step hydrothermal method is adopted for preparation, controllable anchoring of chiral molecules between layers of the nickel-iron layered hydroxide is realized, and the performance of the nickel-iron layered hydroxide is improved. Chiral molecules with a proton acceptor function are introduced into a NiFe-LDH interlayer; due to the steric hindrance and coordination characteristics of chiral molecules, regular growth of NiFe-LDH laminates can be disrupted, and more lattice defects, edge sites and unsaturated coordination metal centers are induced to be generated. The coordination effect of chiral molecules and metal centers (Ni and Fe) can adjust the electronic state and valence state of metal, so that the reaction energy barrier is reduced, and the reaction kinetics is accelerated.

The invention discloses a bionic design scheme intelligent generation method and system fused with a dual-granularity knowledge base, and belongs to the technical field of bionic design and artificial intelligence. The method comprises the following steps: firstly, constructing a dual-granularity knowledge base containing fine-granularity knowledge and coarse-granularity knowledge; secondly, a dual-granularity knowledge retrieval method fusing semantic retrieval and sub-library scoring is adopted, and related biological strategies are accurately obtained; and finally, performing evaluation and iterative optimization on the generated bionic design scheme through a multi-language model expert consultation mechanism. The technical problems that in existing bionic design, the manual screening efficiency is low, and domain knowledge limitation exists in large language model application can be solved, a high-quality bionic design scheme can be intelligently generated, and the method has wide application prospects in the fields of materials, structures, system design and the like.

The invention discloses an ultralow-lift impeller vortex grid bionic design method for blade drag reduction, and relates to the technical field of water conservancy machinery and pump station engineering, and the method comprises the following specific steps: screening out candidate axial flow pump blades meeting target ultralow-lift working condition requirements; constructing a groove structure parameter data set, obtaining blade performance simulation data corresponding to each groove structure parameter group by utilizing numerical simulation, and constructing a sample set; based on the sample set, performing hyper-parameter optimization and training on a pre-constructed neural network model to obtain a neural network prediction model; and obtaining blade performance simulation data corresponding to each groove structure parameter group in the groove structure parameter data set of the to-be-analyzed blade by using the trained neural network prediction model, and determining an optimal groove structure parameter by using a non-dominated sorting genetic algorithm. According to the method, the optimal groove structure parameters for remarkably reducing the flow resistance and optimizing the flow characteristics of the surface of the impeller can be quickly obtained, and the overall performance of the ultralow-lift axial flow pump device is improved.

The invention provides a bamboo joint type umbrella-shaped building structure which comprises a stand column formed by a plurality of supporting rods in a surrounding mode, the stand column can be fixed to a lower body structure or a basic position, and each supporting rod is formed by splicing a plurality of bamboo joint modules; the branch columns are fixed to the stand column and arranged in a radial divergence mode with the stand column as the center to form an umbrella-shaped structure, each branch column is formed by splicing a plurality of bamboo joint modules, a grid is formed between every two adjacent branch columns through reinforcing ribs, and a skylight is arranged in each grid; wherein each bamboo joint module can be independently disassembled and assembled, each bamboo joint module comprises at least one bamboo joint, and splicing joints of every two adjacent bamboo joint modules are connected through mortise and tenon joints or bonded through biological glue. The bamboo joint bionic design is achieved through sectional type bamboo joint module splicing, combination of light weight and high strength is achieved, meanwhile, the mortise and tenon joint or biological glue bonding technology is adopted at the splicing joints, metal connecting pieces are reduced, and integrity is improved.

The invention provides an electric elephant toy, and aims to improve the interestingness of the toy through bionic design and an interaction function. The toy comprises a body, a head, a tail and four legs, wherein the head, the tail and the legs are all movably mounted on the body. A first driving mechanism is arranged in the body and comprises a first motor and a first gearbox, the gearbox is provided with a walking output shaft, a tail swinging output shaft and a head shaking output shaft, the walking output shaft, the tail swinging output shaft and the head shaking output shaft drive the legs to walk, the tail to swing and the head to shake respectively, and the walking posture of the elephant toy is more vivid. In addition, a face touch sensing element and a forehead touch sensing element are installed on the surface of the head, and a button is further fixedly installed on the body. When a child touches the sensing element or presses the button, the toy can trigger corresponding actions and sounds, and interactivity is enhanced. Through bionic design and an interaction function, the electric elephant toy is more interesting and attractive, and is suitable for entertainment and education of children.

The application discloses a preparation method of an interpenetrating phase ceramic dental material and belongs to the technical field of biomedical materials. The application is based on the porous foam structure and cavity tissue of bird skeletons for biomimetic design, two kinds of biomimetic bird bone structures combining the characteristics of annular hyoid structures and cavity tissues are established, and according to the bird skull cooperative damping mechanism, a mortise and tenon structure with the characteristics of cooperative bearing and buffering is constructed, the structure has more excellent mechanical bearing performance and deformation stability compared with a traditional structure. The zirconium oxide-hydrogel interpenetrating phase material prepared by a photo-crosslinking method, the composite design of the soft phase and the hard phase material not only significantly improves the energy absorption characteristics of the material, but also effectively improves the fracture toughness of the dental material. On this basis, a functional coating is constructed on the surface of the material by using a sol-gel dip coating process, and the problems of insufficient corrosion resistance and wear resistance of the dental material in the oral environment are further solved.

The invention discloses a robot skin temperature regulation and control system and method based on bionic heat conduction, relates to the technical field of robot temperature control, and aims to solve the problem that a current humanoid robot cannot realize personalized temperature regulation of different trunk part areas. The system comprises a temperature control device and a plurality of local control devices in communication connection with the temperature control device, the temperature control device and the plurality of local control devices are all connected with a bionic skin inner layer, each local control device comprises a local control module and a flow controller connected with the local control module, the local control module is connected with an AI sensing feedback module, and the flow controller is connected with the AI sensing feedback module. The AI sensing feedback module comprises a feedback unit, and the feedback unit receives the integrated data and transmits feedback information to each local control module. The temperature regulation of the inner layer of the bionic skin in each area is realized by utilizing a plurality of local control devices, and intelligent feedback sensing can be performed by virtue of an AI sensing feedback module, so that the temperature control bionic design of the robot is realized.

The utility model provides a motorized spindle cooling jacket applying a composite bionic microstructure and a motorized spindle. The super-hydrophobic bionic shark scale microstructures at the two ends of the motorized spindle cooling sleeve achieve smoother fluid conduction by reducing resistance of cooling liquid in a flow channel. Compared with a traditional design, the flow speed of cooling liquid is higher, and energy loss is smaller. The super-hydrophilic bionic Echink microstructure in the middle greatly improves the heat transfer efficiency by increasing the contact area of fluid and the inner wall and prolonging the contact time of the fluid and the inner wall, and stable operation of the motorized spindle under the high heat load condition is ensured. By means of the flow channel microstructure of the bionic design, the pump power requirement needed by the cooling system is remarkably reduced, the energy consumption of fluid circulation is reduced, and the overall energy-saving performance of the system is improved. Due to the characteristics of the bionic microstructure, the inner wall of the water jacket has better anti-pollution performance and corrosion resistance, scaling and loss are reduced, the service life of the water jacket is prolonged, and the maintenance cost is reduced.

The invention discloses a bionic-design additive manufacturing air-cooled radiator, and relates to the technical field of radiators, the bionic-design additive manufacturing air-cooled radiator comprises a fixing plate fixed on a heat source, the top end of the fixing plate is vertically provided with truncated conical pin fins in a staggered manner, and middle through holes are formed in the middle surfaces of the truncated conical pin fins at equal intervals; trapezoidal top holes are formed in the surfaces of the tops of the truncated conical pin fins, and inserting sticks are fixed to the tops, close to the boundaries of the two sides of the fixing plate, of the truncated conical pin fins in an inclined and outward mode; the overall radiator structure design of bionic multi-scale three-dimensional pin fin / perforation / bifurcated drainage and other composite geometries is adopted, and the quality-thermal resistance-pressure drop comprehensive performance is optimized under the same air side air channel and the unified FOM index.

The invention discloses a double-bionic wound dressing with seepage management and self-power generation functions as well as a preparation method and application of the double-bionic wound dressing. The double-bionic wound dressing comprises a first electrode layer, a blocking layer, a moisture absorption power generation layer, a diffusion antibacterial layer, an evaporation power generation layer and a second electrode layer which are sequentially stacked from bottom to top. The electrostatic spinning fiber membrane with high biocompatibility is adopted, a liquid transport mechanism of plant transpiration and an ion active transport principle of electric ray power generation cells are combined through bionic design, the triple functions of wound surface antibiosis, efficient seepage management and stable power generation are achieved, the wound surface microenvironment is regulated and controlled, and the wound surface antibacterial effect is achieved. Excessive inflammation caused by seepage accumulation is effectively avoided, fibroblast migration, angiogenesis and skin appendage regeneration are remarkably promoted, wound healing is accelerated, skin function recovery is facilitated, and a new treatment mode is provided for burn wound repair.

This utility model discloses a wind-driven surface vehicle based on a jellyfish-inspired biomimetic design, comprising a float, a sail, an elastic diaphragm, stabilizing blades, an inflatable assembly, solar photovoltaic panels, and a controller. The float is an elliptical plate with an internal cavity. Multiple stabilizing blades are regularly arranged around the float. The surface of the sail is arranged at a relative angle to the long axis of the float. There are two sets of solar photovoltaic panels, arranged on both sides of the sail and electrically connected to the battery module inside the float. The elastic diaphragm covers the bottom of the float, forming an inflatable air chamber between the diaphragm and the bottom surface of the float. This surface vehicle can navigate in natural wind conditions without external power input, exhibiting good navigation stability and long endurance. It is particularly suitable for long-term drift monitoring of the ocean surface, support for distributed sensor network nodes, and surface micro-energy harvesting platforms.

A self-adaptive bionic cancellous bone defect prosthesis and a design method thereof belong to the technical field of medical prostheses. The prosthesis consists of a bio-interface gradient microporous structure portion and a main bionic truss support structure portion. The bio-interface gradient microporous structure portion is arranged at both ends of the main bionic truss support structure portion and is mainly used to reconstruct bone defects. Through the established linear relationship between CT grayscale value and bone density-elastic modulus, the main truss portion is bionicly designed with the same arrangement direction and morphology as human trabeculae, adaptively matching the mechanical conduction of the bone structure, reducing the stress shielding effect, and simultaneously matching the prosthesis's various complex mechanical working conditions, reducing the risk of prosthesis failure, and extending the prosthesis's service life.

This invention belongs to the field of biomaterials and tissue engineering technology. It relates to a PRP-loaded dopamine-modified 3D nanofiber sponge and its preparation method. The PRP-loaded dopamine-modified 3D nanofiber sponge prepared by this invention utilizes a biomimetic design strategy, inspired by the adhesion mechanism of marine mussels, and employs PDA (polydopamine) surface modification technology to form a bioactive interface layer on the nanofiber surface. The active functional groups on the PDA surface bind with growth factors in PRP, forming a stable PDA-PRP composite functional layer. While maintaining the high porosity and suitable mechanical properties of the 3D nanofiber sponge, the biomimetic modification with polydopamine improves the loading efficiency of PRP and the interfacial bonding strength, thus extending the sustained-release period of growth factors.

The present invention discloses a three-dimensional biomimetic design method based on a generative adversarial network. The method comprises the following steps: Step 1: Establishing a training set; Step 2: Establishing a deep generative model and training the deep generative model using the training set; the deep generative model comprises an implicit autoencoder (3DCNN) and a latent vector generative model; the implicit autoencoder comprises an encoder (3DCNN) and a decoder (IM-Decoder); the latent vector generative model employs a generative adversarial network; and Step 3: Using the deep generative model to generate a three-dimensional biomimetic object. The present invention also discloses a system for implementing the above method, comprising a data preprocessing module, a deep generative model, a sample vector repository, and a post-processing module.

The invention discloses a design method of a double-dot-matrix turtle shell bionic truncated pyramid dot matrix structure, and belongs to the technical field of dot matrix structures. The design method comprises the steps that a truncated pyramid dot matrix unit cell structure is designed; performing turtle shell bionic design on the truncated pyramid dot matrix unit cell structure according to the characteristics of a fibrous foam middle layer and a turtle shell suture structure of the turtle shell to obtain a turtle shell bionic truncated pyramid dot matrix unit cell structure; the turtle shell bionic design comprises the steps that bionic foam pore lattice structure design is conducted on the bottom of the truncated pyramid lattice unit cell structure, bionic cutin shield piece design is conducted on the top face and the side face of the truncated pyramid lattice unit cell structure, and bionic bone seam design is conducted on the joint of the top face and the side face of the truncated pyramid lattice unit cell structure. The end faces of the multiple turtle shell bionic truncated pyramid dot matrix unit cell structures are connected in a one-up-one-down mode, and the double-dot-matrix turtle shell bionic truncated pyramid dot matrix structure is formed. The light weight degree and the energy absorption performance of the part can be improved.

The utility model is suitable for the technical field of forage conveying, and provides a straw forage scraper elevator which comprises a shell, a feeding port communicated with the interior of the shell is formed in the upper surface of the shell, a discharging port communicated with the interior of the shell is formed in the lower surface of the side, away from the feeding port, of the shell, and two chains used for transmission are arranged in the shell. A plurality of tooth-shaped steel scrapers and rubber flat-head scrapers are arranged on the two chains, the tooth-shaped steel scrapers and the rubber flat-head scrapers are alternately arranged on the two chains respectively and are connected through pin keys, each tooth-shaped steel scraper comprises a scraper body, a plurality of sawtooth-shaped tooth grooves are formed in the top of each scraper body, and each tooth-shaped tooth groove is communicated with the corresponding tooth groove. The tooth-shaped steel scraper adopts bionic design, simulates claws of animals, and can effectively scrape fibrous materials and prevent the materials from slipping, and the rubber flat-head scraper can prevent small-particle materials from leaking out, so that the sealing performance of the scraper elevator is improved, and the conveying efficiency is improved.

The utility model relates to the technical field of intelligent robots, in particular to an explanation robot, which comprises a body part, an explanation part, an explanation part and an explanation part, the armoring part comprises a body armoring piece, upper limb armoring pieces and lower limb armoring pieces, the body armoring piece is detachably arranged on the body part, and the upper limb armoring pieces and the lower limb armoring pieces are detachably connected to upper limb joints and lower limb joints of the limb parts respectively. According to the scheme, the bionic design is adopted, the color adjusting design capable of adjusting the color is adopted for the head, under the condition that the robot interacts with the visitors, namely the visitors touch the fingers, color switching can be conducted, the interaction feeling is high, the bionic design and the aesthetic feeling are better, audiences can be better attracted to watch, and the popularity of science popularization is improved.

The application discloses a kind of biomimetic composite scaffold with periosteum-cortical bone-cancellous bone structure and its preparation method and application.The scaffold is assembled by independent periosteum biomimetic scaffold module and independent bone trunk biomimetic module.The periosteum biomimetic scaffold module is cylindrical tube structure hydrogel, loaded with zinc silicate particles and periosteum related cells, with the biological functions of promoting cartilage differentiation, secreting nerve and vascular factors and synthesizing periosteum matrix proteins.The bone trunk biomimetic scaffold module is cylindrical bioceramic, with multiple vertical pipes embedded in the dense layer of outer wall to simulate cortical bone, and with staggered structure inside to simulate cancellous bone.Animal experiments show that the biomimetic composite scaffold can effectively promote the integrated regeneration of bone trunk and periosteum in rabbit radial critical size defect model.Therefore, the application provides a new solution for the biomimetic design and regeneration repair of bone tissue engineering.

The invention discloses a flexible micro-unit structure for suppressing flow noise. The flexible micro-unit structure comprises flexible micro-units which are arranged on an incoming flow starting section, a boundary layer development section, a structure geometric mutation area or an orifice edge on the surface of the structure and are arranged in an array; the flexible micro-units are made of flexible materials and can swing or bend under fluid excitation so as to achieve flow noise suppression. According to the flexible micro-unit structure, a micro-scale flexible structure with the multi-degree-of-freedom response capability and the adjustable turbulent flow function is constructed through bionic design, periodic elastic deformation can be generated under fluid excitation, the flow disturbance process is effectively intervened, the resonance problem caused by too large rigidity of a traditional rigid structure is avoided, and the flow disturbance efficiency is improved. The stability and the reliability of flow control are improved; according to the design method, the size parameters, the appearance form, the material type, the laying mode and the area range of the flexible micro-unit can be comprehensively determined according to the specific working condition environment and the target noise reduction frequency band, and parameterized noise reduction design suitable for the multi-working-condition flow field is achieved.

The invention discloses a biodegradable composite high-molecular three-dimensional scaffold and a preparation method thereof, the three-dimensional scaffold comprises a matrix material and an active substance loaded on the matrix material, and the matrix material is selected from biodegradable high-molecular polymers with biocompatibility; the active substance is wedelolactone lipidosome, or the wedelolactone lipidosome and beta-tricalcium phosphate nano particles. The degradable biofilm based on the single wedelolactone liposome has a good promotion effect in the aspect of tissue repair; the scaffold is combined with wedelolactone lipidosome and beta-tricalcium phosphate nano-particles, so that bionic design of natural bone tissues can be realized, functional complementation of nano-materials is realized, good cell compatibility is realized, osteogenesis performance is effectively promoted, and the scaffold has a good application prospect. Meanwhile, the biodegradable high polymer material based on the wedelolactone lipidosome has a good prospect in the field of tissue regeneration and repair.

The application discloses a liquid metal reinforced triboelectric material with a biomimetic surface and a preparation method thereof, and belongs to the technical field of triboelectric materials. The liquid metal reinforced triboelectric material is prepared by mixing an interface stabilizer TEMPO oxidized nanocellulose and a liquid metal gallium-indium alloy, obtaining TOCNF@LM liquid metal-based micro-nano droplets, mixing the obtained TOCNF@LM liquid metal-based micro-nano droplets into a water-based polyurethane of a base material, and adopting a template method to construct a biomimetic rose petal micro-papilla structure, so as to obtain the liquid metal reinforced triboelectric material with the biomimetic surface. The composite material with the rose petal micro-nano structure is prepared through biomimetic design, the micro-papilla structure of the rose petal is successfully copied, and the water-based polyurethane is significantly improved in triboelectric performance by using the TOCNF@LM liquid metal-based micro-nano droplets, so that the open-circuit voltage of the prepared composite material reaches 250 V, the short-circuit current reaches 8.19 mu A, and the short-circuit transfer charge reaches 95 nC. The application provides theoretical and practical guidance for the design of high-performance triboelectric materials.

This invention discloses a biomimetic blade, impeller, and fan with a wave-like surface structure. The blade features a continuous wave structure along its chord length. The wave structure includes a first wave structure, a gentler wave structure, and a second wave structure arranged sequentially along the chord length. This invention targets a closed axial flow impeller, employing a wave-like biomimetic design on the blade surface. The wave pattern is primarily concentrated from 50% of the blade height to the blade tip, aiming to reduce noise from the blade tip to 50% of the blade height. During operation, the area with the highest sound pressure level is concentrated above 50% of the blade height to the blade tip, with the highest sound pressure level near the blade tip. The wave-like design at this location effectively improves the area of ​​airflow energy dissipation and accumulation, thereby reducing noise.

The utility model belongs to the technical field of fluid pipelines, and particularly relates to an industrial anti-backflow water supply pipeline based on bionic design. According to the technology, a pipeline body is included, a plurality of supporting structures are fixed to the inner wall of the pipeline body in the circumferential direction, a valve structure is arranged on each supporting structure, and the supporting structures and the valve structures swing in the water flow direction to form a water flow channel under the downstream working condition; under the countercurrent working condition, the supporting structure and the valve structure swing in the water flow direction, so that the edge of the valve structure is tightly attached to seal the water flow channel. Based on bionic design, a rapidly-formed hard material serves as a supporting framework, a soft material valve serves as a flow guide body, the supporting framework and the supporting structure support the valve, the supporting framework and the supporting structure jointly play a role in backflow prevention, meanwhile, the capacity of the water supply pipeline for bearing higher-strength water flow is effectively improved, and the service life of the water supply pipeline is prolonged. And the valve is prevented from being damaged, excessively deformed or integrally crushed in the use process.