58 results about "Insect wing" patented technology

The present invention relates to a high-performance computer vision system and method for measuring the wings deformation of insects with high flapping-frequency, large stroke-amplitude and excellent mobility during free-flight. A geometrical optic unit composed of a polyhedral reflector with four reflection-planes and four planar reflectors is used to image one high-speed CMOS camera to four virtual cameras, combined with double laser-sheet sources, multiple virtual stereo and structured-light sensors are available to observe the free-flight of insect at different viewpoints simultaneously. In addition, an optoelectronic guiding equipment is included to lead the free-flight of insect and trigger the camera to capture the image sequences of insect-flight automatically. The deformation of insect-wings can be reconstructed by the spatial coordinates of wing-edges and the distorted light-lines projected on the surface of wings.

The system repels noxious flying insects such as female mosquitos from an intended area by broadcasting a series of ultrasonic turbulence waves over the area. The turbulence waves have frequencies which are multiples of the wing beat speed of the insects. The ultrasonic waves are inaudible to humans or animals and they cause the wings of the insects to fluctuate and vibrate such that the insect avoid flying into the intended area.

The invention discloses a method for preparing a multilevel structure with a compound period through variable angle exposure and application, belongs to the technical field of laser processing, and particularly relates to preparation of a micrometer-nanometer cross-scale multilevel structure with a compound period through double-beam interference. The compound period and the multilevel micrometer-nanometer structure are obtained at the same time through the changing of exposure angles of double-beam interference, and a super-hydrophobic surface and a structural color for imitating insect wings are obtained through the micrometer-nanometer cross-scale multilevel structure and the compound period. According to the method, the multilevel structure is obtained through only double-beam interference processing technology by adopting variable angle exposure, the limitation that the prior art is required to be combined with a plurality of methods to prepare the multilevel structure is broken, and the method has the advantages of high expansibility, high yield, high efficiency and the like.

A top water fishing lure fashioned in the configuration of an insect is provided with vibration generation means embodied as a cartridge removably inserted in a watertight structure defining the lure body, operation of the vibration generation means the lure body producing vibrations which are replicated in the lure body, the body vibrations in turn transmitting to insect wing structure affixed to the lure body, the wing structure being caused to flex in manner as occurs when a live insect landed on the top water struggles to fly off th water surface, the components of the generation means being arranged in a piggyback array thereby enabling reduction in lure body size so as to better approach a size more like that of a live insect.

The invention discloses an indoor phase control electronic sound focus type flying insect expelling and killing method and device. The device comprises a plurality of acoustic transducers which are combined into an array acoustic transducer. The array acoustic transducer is connected with a signal acquisition and processing device, an FPGA chip, a rotation and movement control device and a drive power supply. The array acoustic transducer is connected with the FPGA chip through a signal generation circuit. The FPGA chip is connected with the signal acquisition and processing device. The method includes the steps of receiving signals of wing vibration of flying insects, conducting positioning, and transmitting sound signals to expel or kill flying insects. The sound signals of wing vibration of flying insects are received through the array acoustic transducer, high-speed positioning, identification and signal frequency obtaining are conducted, sound field energy of the specific frequency is converged in the designated area and a high-intensity sound field is generated by controlling transmission excitation of the acoustic transducers through an FPGA, and flying insects in the focus area are expelled or killed according to the principle that a mechanical effect is generated after the high-intensity sound field acts on flying insects.

The invention discloses a breeding method of solkworn strain wherein the lavae is fluoride-resistant and the imago fin has no palea scale. The breeding method uses the Chinese race 'Jiang Song' and the Japanese race 'Hao Yue' as recurrent parents and the T6 is used as the fluoride-resistant high-grade object character donor parent and the gene mutation strain U13 is used as the no palea scale gene donor. The first hybridization generation obtained by hybridizing the recurrent parents with theU13 is hybridized with the T6 and then the obtained filial generation is continuously backcrossed with the recurrent parents and each generation is subjected to individual selection during breeding and the selected individual is marked by molecule to select the genotype thereof two silkworn strains 'JsFnlw' and 'HyFnlw' are selected after self-cross homozygosis for six generations, wherein the lavae is fluoride-resistant and the imago fin has no palea scale. The 'JsFnlw' and 'HyFnlw' have strong physical constitution and the lavae whole-instars fluoride-resistance rate is above 100mg/kg and the fluoride-resistance performance is higher than the Chinese race 'Jiang Song' and the Japanese race 'Hao Yue' by 50% and the imago fin has no palea scale, in addition the micro-dust produced during seed-production is reduced by 50% than the common silkworn strain and the practical character corresponds with the utility breed level.

The invention discloses a method for carrying out cell density and arrangement controllable culture based on an insect wing base. The method is implemented by taking an insect scaly wing as a base, the insect scaly wing is obliquely placed in a cell suspension, cells vertically fall on the surface of the insect scaly wing under the action of gravity, and the number of the cells is gradually increased from top to bottom; and the cells on the surface of the insect scaly wing are directionally arranged according to a micro-nano structure on the surface of the insect scaly wing. According to the invention, the insect scaly wing which is taken as the base is easy to obtain and is safe and non-toxic; cell culture with simultaneously controllable cell density and arrangement can be realized, and a series of process complexity and security problems arising from artificial synthetic materials are avoided; and density gradient distribution is formed by the action of gravity, so that the damage of a mechanical acting force on cells is avoided, the cell vitality is kept, and formed cell arrangement with a directional arrangement rule and density gradient distribution has a potential application prospect and practical significance for tissue regeneration including connection tissue regeneration and restoration.

The invention relates to the technical field of bionic manufacturing and in particular relates to a method of reversely an electroforming bionic replica surface directly by a thin and brittle type biological surface. The method comprises the steps such as thin and brittle type biological surface sampling and pre-treating, thermally evaporating and depositing a transition layer capable of being acid-etched on the thin and brittle type biological surface, casting an elastic high polymer backing on the outer surface of the transition layer capable of being acid-etched, low-temperature ashing and clearing of oxygen plasmas on the thin and brittle type biological surface, depositing a conductive metal layer on the inner surface of the transition layer capable of being acid-etched, reversely electroforming the replica directly on the thin and brittle type biological surface, clearing the elastic backing and the transition layer capable of being acid-etched. Compared with the prior art, the method disclosed by the invention can realize visible electroforming invisibly, and is especially suitable for electroforming replicas of thin and brittle type biological surfaces such as plant leaves and insect wings; a male mould of the same structure can be directly obtained by a biological prototype, so that reverse material-adding type electroforming replica is realized; and the metal hard bionic replica surface can be directly obtained.

The invention discloses a method for preparing a carbon-based electrocatalyst from an insect wing. The method comprises the following steps of performing hydrothermal treatment on the insect wing, performing drying or freezing and drying, performing high-temperature carbonization in a mixed gas atmosphere containing a nitrogen source at 500-2,000 DEG C, performing acid picking, and performing secondary calcination at 500-2,000 DEG C to obtain a carbon-based material; dispersing the carbon-based material in ethyl alcohol containing a perfluorinated acid solution, and performing ultrasound for 5-60 minutes to obtain an uniform electrocatalyst solution; dropwise adding the electrocatalyst solution onto an electrode, and performing drying to prepare the carbon-based electrocatalyst. The carbon-based electrocatalyst has the advantages of simple preparation process, low cost and good environmental friendliness, is convenient to operate, and also has excellent electrocatalysis oxidization-reduction activity, and a new solution scheme is provided for achieving function guidance design and performance optimization of a novel carbon-based material.

The invention discloses a negative-pressure fixing device for a living insect. The negative-pressure fixing device for the living insect comprises a base and an article placement plate arranged on the base, wherein a negative-pressure cavity is arranged between the base and the article placement plate, the article placement plate is provided with a plurality of air holes, and a negative-pressure pipe is connected with the negative-pressure cavity. According to the negative-pressure fixing device for the living insect, negative pressure is generated in the negative-pressure cavity through a negative-pressure generation device connected with the negative-pressure pipe, the insect to be observed is placed on the article placement plate, an absorption function is generated on the wings or the body of the insect through the negative pressure at the bottom of each air holes to fix the insect, the insect is not injured when observed, and the conduction of the subsequent experiment is facilitated. The negative-pressure fixing device for the living insect is applied to the field of biotic experiment devices.

A broadcasting apparatus is provided for killing insects. The broadcasting apparatus includes an emitter operable to emit a wave therefrom. The wave is at least one of a sound or one of a light. The apparatus includes a detection means of determining the species of insect, a processor and a memory to provide the most effective wave to kill the insect. A power source is operatively connected to the emitter and provides power to the emitter. The wave emitted from the emitter is capable of breaking a wing of an insect.

The invention discloses an environment-friendly man-made bait film which is characterized by being made of, by weight parts, 3-10 parts of zein, 5-10 parts of aloe gel, 30-50 parts of polyvinyl alcohol resin, 5-8 parts of plasticizer, 3-6 parts of stabilizer, 2-5 parts of free radical photoinitiator, 2-5 parts of paraffin, 3-8 parts of ethyl acetate and 60-100 parts of organic solvent. The environment-friendly man-made bait film is scientific in formula, advanced in process, extremely high in simulation effect and convenient to use, can extend towards the outside of a matrix, such as a fin and an insect wing, can meet decoration requirements of bionic baits in various shapes and replace a conventional plastic film, can be degraded naturally and protect the environment and does not pollute water bodies.

The invention discloses a preparation method of an efficient oxygen reduction catalyst with insect wings as a substrate. The method comprises the steps: firstly, pretreating the insect wings and carbon black, then simultaneously putting the pretreated insect wings and carbon black into an aqueous mixed solution of an iron-containing compound, a cobalt-containing compound and a nitrogen-containing compound, carrying out ultrasonic mixing, then in a temperature range of 300-1500 DEG C and in an inert gas atmosphere, carrying out high temperature heat treatment, and cooling to obtain the efficient oxygen reduction catalyst. The prepared sample has the advantages of high catalytic activity, good stability, high yield, no pollution, environmental friendliness and the like, and a novel idea is provided for insect wing biological materials in preparation of fuel cell negative electrode catalysts.

The invention discloses a single-degree-of-freedom flapping-wing mechanism capable of simulating a spatial motion track. The single-degree-of-freedom flapping-wing mechanism comprises a supporting frame, a transmission system, a frame and two sets of space four-bar mechanisms, wherein the frame is fixedly arranged on the supporting frame; the transmission system is arranged on the supporting frameand the frame; an output shaft is fixedly arranged on the frame; the transmission system drives the output shaft to rotate through gear transmission; two sets of the space four-bar mechanisms are symmetrically arranged at two ends of the output shaft; each space four-bar mechanism comprises a crank, a connecting bar and a rocker bar; one end of each crank is fixedly arranged at one end head of the output shaft; the other end of each crank is connected with a connecting bar through a steering universal joint; one end of each rocker bar and a connecting bar form a revolute pair; the other end of each rocker bar is a free end; meanwhile, each rocker is connected with the frame through a ball pair. The single-degree-of-freedom flapping-wing mechanism provided by the invention has simple structure and high transmission efficiency, and can realize simulation of the 8-shaped spatial motion track of insect wings under the condition of single-degree-of-freedom driving.

The invention discloses a method for preparing an oxygen reduction catalyst by using insect wings as a raw material. The method comprises: carrying out hydrothermal treatment on insect wings, drying, preparing a mixed solution of a carbon source, a nitrogen source and a metal salt, and placing the dried insect wings into the prepared mixed solution, wherein a mass ratio of the insect wings to the carbon source to the nitrogen source to the metal salt can be arbitrarily adjusted; carrying out freeze vacuum drying or drying, and carrying out primary high-temperature carbonation on the mixture at a temperature of 500-2000 DEG C, wherein ammonia gas is introduced for 10-120 min at a temperature of 400-600 DEG C; and carrying out follow-up operations such as grinding treatment, acid treatment and secondary heat treatment so as to obtain the final catalyst material. According to the present invention, the obtained material has the high specific surface and can achieve the doping of carbon, nitrogen and non-precious metals, and the preparation method has advantages of simpleness, convenient operation, low cost and environmental protection, and provides the new idea and strategy for the cathode oxidation reduction catalyst preparation for the achievement of the replacement of the commercial Pt/C catalyst.

The invention discloses a two-degree-of-freedom motion ornithopter. The ornithopter comprises a rack, a motor and a gear speed reducing mechanism; a pair of flapping mechanisms and a pair of rotatingmechanisms are arranged on the rack; the gear speed reducing mechanism is connected with the motor and the flapping mechanisms; chutes are symmetrically arranged in the side surfaces of the rack; eachrotating mechanism comprises a guide block, a guide rod and a spring, one end of the guide rod is fixedly connected with the guide block, the other end of the guide rod is connected with a bionic wing, the guide block can rotate along the semi-arc inner wall of the sliding groove at the upper end and the lower end of the sliding groove and drive the bionic wing to rotate, and the guide rod is provided with the spring, resets under the action of the spring and is connected with the flapping mechanism. The up-and-down movement of the guide block and the up-and-down flapping of the bionic wing form a 180-degree reverse phase. According to the invention, 100-degree flapping amplitude and 90-degree rotation amplitude can be realized, and the motion characteristic of periodic large-amplitude flapping of insect wings can be better simulated; the pair of flapping mechanisms and the pair of rotating mechanisms are used for realizing two-degree-of-freedom movement, so that the problems of complexity and heaviness of multi-connecting-rod or space mechanism driving rotation can be reduced.

The invention relates to an MXene composite material based electrochemical actuator and a preparation method and application thereof. The MXene composite material based electrochemical actuator comprises two electrode layers and an electrolyte layer, wherein the electrolyte layer is clamped between the two electrode layers to form a sandwich structure; the two electrode layers comprise MXene. TheMXene composite material based electrochemical actuator provided by the invention shows excellent actuation performance, and has the characteristics of large bending deformation, low driving voltage,high response speed, good stability, capability of realizing response to frequency and the like; the MXene composite material based electrochemical actuator can be used as bionic equipment, and can beused as a mechanical claw to realize grabbing of articles, imitate vibration of insect wings, swing of leaves, opening and closing of flowers and the like. In addition, the preparation process of theMXene composite material based electrochemical actuator is simple, and complex equipment is not needed.

The invention relates to a laser mosquito repellent device which comprises a controller, a radar device, a driving unit and a laser transmitting unit. The controller comprises a central control unit,a driving control module electrically connected with the central control unit, a laser control module and an information comparison module; the radar device comprises a positioning module and a frequency monitoring module, the positioning module is connected with the driving control module, the frequency monitoring module is connected with the information comparison module, and the frequency monitoring module is used for monitoring the vibration frequency of various types of winged insect wings; the laser transmitting unit comprises a laser head, the driving control module is connected with the driving unit, the laser control module is connected with the laser transmitting unit and controls the laser transmitting unit to transmit laser of different frequencies through the laser head, and the driving unit is connected with the laser head and drives the laser head to rotate. According to the laser mosquito repellent device, coordinates of the winged insect wings can be positioned throughthe radar device, the coordinate information is sent to the controller, the laser head is controlled by the controller to transmit laser to the winged insect wings, the winged insect wings are damaged by laser and therefore the purposes of mosquito killing and repellent are achieved.

The invention provides a miRNA for regulating and controlling insect wing development and an application of the miRNA. The miRNA bioinformatics is used to obtain the nilaparvata lugens specific miRNA:nlu-miR-34, in-vitro synthetic nlu-miR-34 analogue agomiR-34 is injected into nilaparvata lugens, and results show that the analogue agomiR-34 has a lethal effect on the nilaparvata lugens, and can significantly regulate and control the wing development of the nilaparvata lugens.

The invention discloses a novel finite element modeling method for insect wings with flexible vein nodes, comprising at least the following steps: (1) a basic modeling process, establishing a model Aand a model B; (2) Entrusting the sectional properties and material parameters of the components to create the assembly; (3) setting constraint conditions, and binding model A and model B to model C;(4) defining an analysis step, setting boundary conditions, applying loads, and meshing; (5) generating and editing *. Inp file; (6) Create the job and submit the calculation. The invention takes intoaccount the detailed arrangement, in particular the diversity of connection modes between the veins when establishing the integral structure model of the insect wings.

The invention discloses an application of lepidopteron chitin synthetase CHSA-2b/19b in pest control. DsRNAs of interference exons 2b and 19b are fully injected to a lepidopteron, so insect veins are deformed, crumple and become thin, and wings become small, thereby the above phenomena show that transcription containing the 2b and/or 19b influences the growth of insect wings. An artificially synthesized substance expressed by a chitin synthetase transcript containing the 2b and/or the 19b and inhibiting the lepidopteron, or a compound screened from a plant, can be used as an inhibitor, for example, injection of the dsRNA of the CHSA-2b to the lepidopteron can realize pest control. A substance for promoting degradation of the chitin synthetase transcript containing the 2b and/or 19b in the lepidopteron, or a substance inhibiting normal effect performing of the chitin synthetase containing the 2b and/or 19b can also be used as a pesticide to realize pest control.

The invention discloses an application of miR-995 in prevention and treatment of lepidoptera pests. Research finds that overexpression of miR-995 can significantly reduce the fin area and inhibit findevelopment; further research finds that the action mechanism of the miR-995 is as follows: the miR-995 directly inhibits the expression of a target gene diap1 of a Hippo signaling pathway, and further inhibits the development of wings. The miR-995 can significantly inhibit insect wing development, and important target gene resources are provided for RNAi-mediated pest biological control by artificially synthesizing the miR-995 or analogues thereof or utilizing transgenic plants expressing the miR-995. According to the invention, theoretical and practical significance is provided for prevention and treatment of winged insects, and meanwhile, the method has remarkable economic benefits and social benefits.

The invention discloses a craft manufacture technology, and particularly relates to a firing technology of insect wing crafts with skin texture characteristics. The firing technology of insect wing crafts with skin texture characteristics comprises the following steps: drawing according to the design sequence on a low-temperature fired embryo body at 450-550 DEG C by using multiple kinds of high-temperature color glaze materials so as to form an effect of covering by multiple kinds of color glaze layers partially, and firing the drawn embryo body at a high temperature, wherein partial overlapped part is subjected to glaze change generated by firing mixed multiple kinds of glaze materials, so that the fired crafts present glaze change texture with a skin texture effect, especially the semi-transparent cover texture which is much approximate to the texture of insect wings, and the art expressive force of ceramic products is enriched greatly.

The invention relates to an inflatable bionic wing and a processing method thereof, and belongs to the field of bionic machinery. An upper plastic film and a lower plastic film form a hollow structureby the aid of an inner heat-sealing line and an outer heat-sealing line, main rib wing columns are provided with conical structures, the butt end of a near wing is provided with a large-diameter structure, the butt end of a far wing is provided with a small-diameter structure, a staggered rib wing column is provided with a columnar structure and used for connecting the two main rib wing columns,the inner heat-sealing line is closed to form an inner wing surface, an outer wing surface is formed by the outer heat-sealing line and a cutting track, clamping wing columns are positioned at roots of the main rib wing columns, and a non-return valve is connected with an inflation inlet in a heat-sealing manner. The inflatable bionic wing has the advantages that the structure is novel, the inflatable wing is prepared from the double plastic films by a hydraulic heat-sealing method, the insect wing-type bionic wing can be formed after inflation and has a certain strength and flexibility, the wing is rapidly inflated in flying to form a wing structure for flying of a flapping-wing aircraft, the bionic wing can be exhausted and folded before and after flying, the size of the bionic wing is reduced, and the bionic wing is easily stored.