38results about How to "Flexible performance adjustment" patented technology

The invention discloses a high-sensitivity capacitive flexible tactile sensor based on a three-dimensional porous microstructure composite dielectric layer and a manufacturing method thereof. The upper and lower surfaces of a three-dimensional porous microstructure composite dielectric layer are orderly provided with flexible isolation layers, flexible plates and flexible protection layers. According to the three-dimensional porous microstructure composite dielectric layer, a graphene / multi-wall carbon nanotube / silicone rubber conductive composite material is used as a force sensitive composite material, and dipping and coating the graphene / multi-wall carbon nanotube / silicone rubber conductive composite material at a polyurethane sponge three-dimensional framework surface layer, the three-dimensional porous microstructure composite dielectric layer is obtained through self-assembly. The capacitive flexible tactile sensor of the invention has good flexibility, detection sensitivity anddynamic response characteristics, and a design idea is provided for the design of the highly-sensitivity flexible tactile sensor for an electronic skin application of an intelligent robot.

The method comprises: using M-scale notation information symbols to directly control the location of sinusoidal carrier phase jump moment in each code element cycle, and inserting a certain guard gap to implement the modulation of M-element signals so as to realize the higher rate transmission in case of the symbol rate same with the EBPSK (extended binary phase shift keying) and same bandwidth occupation.

The invention discloses a production method of a composite coating and particularly discloses a method for preparing an alloy-ceramic composite coating through plasma spray-welding. The specific process comprises steps as follows: firstly, the surface of a matrix, alloy powder and ceramic particles are pretreated; then the surface of the matrix is clad with the alloy powder and the ceramic particles by the aid of a designed plasma spray-welding torch, so that a metal-ceramic composite material strengthened layer is formed; when plasma spray-welding is performed, the alloy powder is directly conveyed into an electric arc of a plasma transferred arc and is quickly molten into the liquid state in the electric arc to fall onto the surface of the matrix to form a molten bath; and the ceramic particles are conveyed to the outsides of plasma nozzles and fall into the molten bath on the outside of an arc column of the plasma transferred arc. With the method, the ceramic particles and the arc column fall into the molten bath formed by the molten alloy powder in the state that a certain distance is kept, so that adverse effects such as oxidation, decarburization and the like caused by the high temperature of the electric arc on the ceramic particles can be effectively avoided.

The invention discloses an itaconic acid-based epoxy resin composition which comprises the components in parts by weight: 100 parts of itaconic acid-based epoxy resin, 5-150 parts of curing agent, 0-6 parts of curing accelerator, 0.1-10 parts of radical initiator and 0.1-100 parts of double-bond-containing component, wherein the double-bond-containing component is more flexible in performance adjustment; the itaconic acid-based epoxy resin not only has two epoxy groups so as to be cured under the action of the epoxy resin curing agent, but also has double bonds so as to be capable of carrying out free radical polymerization under the action of the radical initiator; and furthermore the double-bond-containing component is more flexible in performance adjustment. The invention also discloses a method for preparing an itaconic acid-based epoxy resin cured substance from the itaconic acid-based epoxy resin composition; and the curing method is simple, easy to implement, good in controllability and high in operability.

The invention discloses an organosilicone heat conduction insulating piece and a preparation method thereof. The organosilicone heat conduction insulating piece at least comprises a heat conduction insulating layer, wherein the heat conduction insulating layer is prepared from an organosilicone heat conduction insulating composition by using a sheet material forming process; the organosilicone heat conduction insulating piece comprises a substrate; the organosilicone heat conduction insulating composition is prepared from linear organopolysiloxane containing alkenyl, heat conduction packing, a cross-linking agent, a platinum catalyst, a vulcanizing agent and the like. The organosilicone heat conduction insulating piece disclosed by the invention is high in heat conductivity, good in insulating property, good in stabbing resistance and tearing resistance, flexible in adjusting product property, simple in preparation method and wide in adaptability.

The invention discloses biodegradable temperature response hydrogel and a preparation method thereof. The method comprises the following steps of: (1) reacting terminal hydroxyl group of polycaprolactone dihydric alcohol with crylic acid (or methacrylic acid) to prepare polycaprolactone macromolecule cross-linking agent; (2) reacting singe terminal hydroxyl group of polyethylene glycol monomethylether and acryloyl chloride (or methacryloylchloride) to prepare a polyethylene glycol monomethyl ether macromolecule monomer; and (3) copolymerizing the polycaprolactone macromolecule cross-linking agent, the polyethylene glycol monomethyl ether macromolecule monomer and N-isopropylamide according to a certain ratio to obtain the biodegradable temperature response hydrogel. Compared with the traditional hydrogel, the hydrogel disclosed by the invention has the advantages of being rapid in response speed, good in mechanical strength, biodegradable and good in biocompatibility; therefore, the hydrogel is hopeful to be applied in the drug slow release field.

The invention provides a controllable damping molecule spring vehicle suspension. The controllable damping molecule spring vehicle suspension comprises a compressible hydraulic cylinder, an incompressible auxiliary cylinder, a piston, molecular spring mixed mediums and a magnetorheological fluid; the compressible hydraulic cylinder comprises an end cap and a cylinder body which are mutually connected, a membrane sheet is arranged at the position between the end cap and the cylinder body, and a cavity formed between the membrane sheet and the cylinder body is fully filled with the molecular spring mixed mediums; the incompressible auxiliary cylinder comprises an auxiliary cylinder body, and the auxiliary cylinder body is arranged at the end, away from the cylinder body, of the end cap in asleeving mode; a first sealing ring is arranged between the inner wall of the auxiliary cylinder body and the outer wall of the end cap to form a sealed chamber, and the chamber is fully filled with the magnetorheological fluid; the piston comprises main pistons and an auxiliary piston, wherein the main pistons and the auxiliary piston are mutually connected, the main pistons are located in the end cap and the auxiliary cylinder body and sequentially penetrate through the end cap and the auxiliary cylinder body to extend to the exterior of the auxiliary cylinder body; and the auxiliary pistonis located in the cavity formed between the membrane sheet and the cylinder body. According to the controllable damping molecule spring vehicle suspension, the structure is simple, performance is superior, and ride comfort and the control ability of a vehicle can be effectively improved.

The invention discloses a composite method of a liquid crystal supermolecule material containing double photosensitive units, belonging to the technical field of photosensitive materials. Anion polyelectrolyte solution and azo-cinnamylic acid ion liquid crystal mixed liquor are mixed to react to obtain precipitate, and the liquid crystal supermolecule material is obtained after the precipitate is cleaned. The invention can change the phase behavior, the light orientation characteristic and the thermostability of the photosensitive supermolecule material by regulating the ratio of the two photosensitive units.

The invention discloses a simulated training system for a helicopter and a control method for the simulated training system. The system comprises a networking console and helicopter simulated trainingequipment in wireless or wired connection with the networking console. The helicopter simulated training equipment comprises a chassis which is provided with three groups of wheel assemblies or caterpillar band assemblies or more which can be driven to operate independently and can achieve the independent steering, can move in any direction, and is provided with a horizontal platform which can rotate horizontally; a moving platform which is used for achieving the six-freedom-degree movement, wherein the pedestal of the moving platform is installed on the horizontal platform of the chassis; ahelicopter, the bottom of which is fixed at the top of the moving platform; and controllers which comprise a main controller, a chassis controller, a moving platform controller and the helicopter controller, and are in mutual communication connection. The system can achieve the simulated driving training of a real helicopter and the entertainment driving activity of the real helicopter, and enables the visual and acoustic and somatosensory driving experience to be similar to the driving experience of the real helicopter.

The invention provides a molecular spring vehicle suspension. The molecular spring vehicle suspension comprises a compressible hydraulic cylinder, pistons and molecular spring mixed media; the compressible hydraulic cylinder comprises an end cover and a cylinder body which are connected with each other, a diaphragm is arranged between the end cover and the cylinder body, and a cavity formed between the diaphragm and the cylinder body is filled with the molecular spring mixed media; the pistons comprise a guide piston and a damping piston which are connected with each other, one end of the guide piston is located in the end cover, and the other end of the guide piston extends out of the end cover; the damping piston is located in the cavity formed between the diaphragm and the cylinder body; the end, connected with the guide piston, of the damping piston is a stepped shaft with threads, the stepped shaft is used for fixing the damping piston, the guide piston and the diaphragm togetherthrough the threads, and sealing is formed; and the other end of the damping piston is a guide end, the outer edge of the guide end is in clearance cooperation with the inner wall of the cylinder body, and damping holes are formed in the guide end. The molecular spring vehicle suspension has high static and low dynamic stiffness characteristics, smoothness and maneuverability of running of a vehicle can be greatly improved, and meanwhile, installation space is saved.

The invention provides a preparation method of a defect-containing WO3 photoelectrode. A WO3 electrode grows on a conductive surface of conductive glass by adopting a water bath method, the WO3 electrode is connected with a metal foil by a wire, then the WO3 electrode and the metal foil are simultaneously immersed into an electrolyte solution with a certain concentration, the color of a WO3 film is gradually changed from yellow to blue, and meanwhile, defects are generated on the surface of the material. The light absorption characteristic and color change of the WO3 film can be controlled bycontrolling the reaction time, the reduction potential of the metal foil and the concentration of the solution. The preparation method is simple in process and beneficial to large-scale preparation and production. The material has a huge application prospect in the aspects of hydrogen production by photoelectrically decomposing water, chemochromism, solar cells and the like. The invention belongsto the technical field of photoelectrode improvement.

The invention discloses a modified polyimide-based wave-absorbing material for a microwave dark chamber, and the wave-absorbing material is composed of a polyimide foaming precursor composite wave-absorbing material and modified foamed aluminum; a wave-absorbing pyramid is made of the polyimide foaming precursor composite wave-absorbing material, the wave-absorbing pyramid is adhered to a modifiedfoamed aluminum plate through an adhesive, a foamed aluminum plate is fixed on the other surface of the modified foamed aluminum plate through long nails, a gap exists between the modified foamed aluminum plate and the foamed aluminum plate, and aerogel is filled in the gap. The wave-absorbing material has the beneficial effects that: various wave-absorbing medium materials are adopted to form the wave-absorbing pyramid together, so that the wave-absorbing performance of the composite material at each frequency is effectively improved; the foamed aluminum is modified by adopting the wave-absorbing medium, so that the wave-absorbing capacity is improved, and meanwhile, the foamed aluminum has excellent sound insulation performance; an interlayer between the modified foamed aluminum and common foamed aluminum is filled with aerogel, so that the heat insulation performance is improved.

The invention discloses a vacuum conveying belt suction device for carrying battery pieces. The device comprises a mounting plate, a vacuum unit and a conveying unit for carrying the battery pieces are arranged on the mounting plate, and the vacuum unit comprises a vacuum plate of which the upper surface is attached to the mounting plate; the vacuum plate is internally provided with multiple relatively-sealed vacuum cavities and vacuum pumps communicated with all the vacuum cavities respectively, multiple first through holes communicated with the vacuum cavities are formed in the lower surfaceof the vacuum plate, and the conveying unit comprises a conveying belt for sucking the battery pieces and a driving assembly; the driving assembly drives the conveying belt to move in the array direction of the vacuum cavities, the upper portion of the conveying belt penetrates through the mounting plate, the lower portion of the conveying belt is attached to the lower surface of the vacuum plate, and multiple second through holes corresponding to the first through holes are formed in the conveying belt. The vacuum conveying belt suction device at least has the following advantages that the carrying efficiency is high, and the working positions of the battery pieces can be flexibly adjusted according to demands.

A microwave absorbing material for microwave anechoic chamber based on modified polyimide is composed of polyimide foam precursor composite absorbing material and modified aluminum foam; polyimide foam precursor composite absorbing material material to make a wave-absorbing pyramid, and the wave-absorbing pyramid is adhered to a modified aluminum foam board through an adhesive, and the other side of the modified foamed aluminum board is fixed with a foamed aluminum board by long nails, and the modified foamed aluminum board and the foam There are voids between the aluminum plates, which are filled with airgel. The beneficial effect lies in: using a variety of wave-absorbing medium materials to form a wave-absorbing pyramid, effectively improving the wave-absorbing performance of the composite material at each frequency; It has excellent sound insulation performance; airgel is used to fill the interlayer between modified aluminum foam and ordinary aluminum foam, which improves the heat insulation performance.

The invention provides a preparation method of a wild antheraea pernyi silk fibroin composite maltodextrin active stent material. The composite stent material takes wild antheraea pernyi silk fibroin and maltodextrin as main raw materials; the wild antheraea pernyi silk fibroin can promote fiber cell adhesion; the maltodextrin has functions of material modifier, pore-foaming agents, cell nutrients and neutrophil chemotactic agents; pore size distribution and porosity of the material are adjusted by the aid of phase separation-ultrasonic leaching hole technology in the preparation process of the material, mechanical property and degradation property of the material are favorably and flexibly adjusted, and matching of stent degradation rate and cell growth rate is realized; the preparation method is simple in process, short in production circle, high in clinical application value and especially suitable for preparation of artificial skin.

The method comprises: using M-scale notation information symbols to directly control the location of sinusoidal carrier phase jump moment in each code element cycle, and inserting a certain guard gap to implement the modulation of M-element signals so as to realize the higher rate transmission in case of the symbol rate same with the EBPSK (extended binary phase shift keying) and same bandwidth occupation.

The invention discloses a method for optimizing the performance of a vanadium oxide thin film through a low valent vanadium seed layer, and relates to the field of electronic materials. The method adopts a magnetron sputtering technology, vanadium metal is used as a target, Al2O3 is used as a substrate, sputtering is conducted in the aerobic environment in twice, the oxygen concentration of the first time of sputtering is lower than that of the second time of sputtering, the low valent vanadium seed layer and the vanadium oxide thin film are sequentially obtained through the two times of sputtering correspondingly, and finally the vanadium oxide thin film optimized with the low valent vanadium seed layer is obtained through annealing. The prepared vanadium oxide thin film with the low valent vanadium seed layer has high phase change amplitude and small return wire width and is closer to the room temperature phase change temperature, and thus the sensitivity, stability, reliability andapplication prospects of thermotropic switch modulation devices are improved; and in addition, the annealing temperature required by preparation of the phase change vanadium oxide thin film through the method can be remarkably lowered, the process compatibility with an MEMS is better, and the method is suitable for batch production.

The invention relates to the technical field of plasmas, and discloses an electrode slice, an electrode plate, an electrode block and a plasma generator. The electrode plate (115) comprises a blockingdielectric plate (1151), an insulating seat (1154) with a mounting groove, a conductive connecting piece (1153) and a conducting strip (1156) arranged between the blocking dielectric plate and the insulating seat. The conducting strip and the insulating seat are positioned in the mounting groove, one end of the conductive connecting piece is connected to the conducting strip, and the other end ofthe conductive connecting piece extends to the outside of the insulating seat to form an electric connecting terminal (1155), wherein an insulating glue (1152) is filled in the gaps between the blocking dielectric plate and the mounting groove and between the conductive sheet and the mounting groove. The electrode slice is simple in structure, can effectively and stably seal and insulate the conducting strip for a long time, and is convenient for the simple installation and rapid disassembly of the plate-type electrode.

The invention belongs to the field of photocatalyst application of organic semiconductors, and specifically relates to the application of heteroatom-containing triazine covalent organic framework materials in photocatalysis. The triazine ring covalent organic framework material containing heteroatoms serves as a photocatalyst. The heteroatoms are introduced through the aldehyde monomer containing the heterocyclic ring, and are polycondensed with the binary or polyamidine-based compound in the presence of an alkaline catalyst. It is prepared by the reaction; as a photocatalyst, this type of material can degrade organic pollutants in water, and can also produce hydrogen by splitting water under light conditions. Through this method, triazine ring covalent organic framework materials containing heteroatoms are introduced as photocatalysts, which have high catalytic efficiency, strong applicability, and are suitable for large-scale applications.

The invention discloses biodegradable temperature response hydrogel and a preparation method thereof. The method comprises the following steps of: (1) reacting terminal hydroxyl group of polycaprolactone dihydric alcohol with crylic acid (or methacrylic acid) to prepare polycaprolactone macromolecule cross-linking agent; (2) reacting singe terminal hydroxyl group of polyethylene glycol monomethyl ether and acryloyl chloride (or methacryloylchloride) to prepare a polyethylene glycol monomethyl ether macromolecule monomer; and (3) copolymerizing the polycaprolactone macromolecule cross-linking agent, the polyethylene glycol monomethyl ether macromolecule monomer and N-isopropylamide according to a certain ratio to obtain the biodegradable temperature response hydrogel. Compared with the traditional hydrogel, the hydrogel disclosed by the invention has the advantages of being rapid in response speed, good in mechanical strength, biodegradable and good in biocompatibility; therefore, the hydrogel is hopeful to be applied in the drug slow release field.

The invention relates to an oscillator replacing structure, in particular to an oscillator replacing structure of a pulse field strength probe. The oscillator replacing structure comprises an antenna receiving rod, an antenna pedestal and a PCB, and is characterized in that the antenna receiving rod is detachably connected with the antenna pedestal, the antenna pedestal is detachably connected with the PCB, the PCB is arranged in a metal shielding shell, the antenna pedestal and the antenna receiving rod are vertically arranged, and the PCB is vertical to the antenna pedestal. Compared with the prior art, the oscillator replacing structure has the beneficial effects that: the antenna receiving rod is detachably connected with the antenna pedestal, and the antenna pedestal is detachably connected with the PCB, thus the replacement of a rod antenna is facilitated, length of the antenna receiving rod is adjustable, and the antenna performance can be adjusted flexibly.

The invention discloses a composite method of a liquid crystal supermolecule material containing double photosensitive units, belonging to the technical field of photosensitive materials. Anion polyelectrolyte solution and azo-cinnamylic acid ion liquid crystal mixed liquor are mixed to react to obtain precipitate, and the liquid crystal supermolecule material is obtained after the precipitate iscleaned. The invention can change the phase behavior, the light orientation characteristic and the thermostability of the photosensitive supermolecule material by regulating the ratio of the two photosensitive units.

The invention provides a molecular spring vehicle suspension. The molecular spring vehicle suspension comprises a compressible hydraulic cylinder, pistons and molecular spring mixed media; the compressible hydraulic cylinder comprises an end cover and a cylinder body which are connected with each other, a diaphragm is arranged between the end cover and the cylinder body, and a cavity formed between the diaphragm and the cylinder body is filled with the molecular spring mixed media; the pistons comprise a guide piston and a damping piston which are connected with each other, one end of the guide piston is located in the end cover, and the other end of the guide piston extends out of the end cover; the damping piston is located in the cavity formed between the diaphragm and the cylinder body; the end, connected with the guide piston, of the damping piston is a stepped shaft with threads, the stepped shaft is used for fixing the damping piston, the guide piston and the diaphragm togetherthrough the threads, and sealing is formed; and the other end of the damping piston is a guide end, the outer edge of the guide end is in clearance cooperation with the inner wall of the cylinder body, and damping holes are formed in the guide end. The molecular spring vehicle suspension has high static and low dynamic stiffness characteristics, smoothness and maneuverability of running of a vehicle can be greatly improved, and meanwhile, installation space is saved.

The invention relates to a convolutional neural network accelerator architecture in which both weights and activation values ​​are binarized, including: a first memory, a fifth memory and a ninth memory for storing weight data; a memory for storing feature map data The third memory, the fourth memory, the seventh memory and the eighth memory; the second operator, the sixth operator and the tenth operator. The present invention provides a convolutional neural network accelerator architecture in which both weights and activation values ​​are binarized; data multiplication is realized by XOR operation, and XOR can be completed without using multipliers, but using logic resources to complete the operation.

The invention belongs to the technical field of machinery equipment, and particularly provides an automatic clothing cutting bed. The cutting bed comprises an underframe, a top frame, a bottom plate,a main frame and a secondary frame; underframe columns are welded at the top of the underframe; the top frame is connected with the tops of the underframe columns; the bottom plate is connected with the inner sides of the underframe; the main frame and the secondary frame are connected with the left and right side walls of the underframe and the top frame; and a main slide rail and a secondary slide rail connects the main frame and the secondary frame. According to the automatic clothing cutting bed, X-direction motors in series connection can be arranged on the side surface of the top frame to be matched with synchronous conveyor belts in use; at the same time, the main frame and the secondary frame which contain the main slide rail and the secondary slide rail respectively are arranged on two sides of the top frame, a third cutting ring driven wheel is driven by a cutting ring driving wheel, and six-wheel synchronous motion is realized driven by the conveyor belts; and an upper rotating motor and a lower rotating motor are used to drive, so a movable frame and the third cutting ring driven wheel are matched with the main slide rail and the secondary slide rail to make synchronousmovements, and the operation space in the cutting process is improved so the purpose of flexible adjustments is achieved.

The present invention provides a defective WO 3 Preparation method of photoelectrode, WO 3 The electrode is grown on the conductive surface of the conductive glass by the method of water bath, and the WO 3 The electrode is connected with the metal foil, and then the WO 3 Electrode and metal foil are immersed in a certain concentration of electrolyte solution at the same time, WO 3 The color of the film gradually changes from yellow to blue, and defects appear on the surface of the material. WO 3 The light absorption properties and color change of the film can be controlled by controlling the reaction time, the reduction potential of the metal foil, and the concentration of the solution. The preparation method has simple process and is beneficial to large-scale preparation and production. This type of material will have great application prospects in photoelectric water splitting to produce hydrogen, chemochromism, solar cells, etc. The invention belongs to the technical field of photoelectrode improvement.

The invention relates to a preparation method of hydroxyl polyurethane (PHU). The method adopts the isocyanate route of synthesizing traditional polyurethane (PU) to synthesize PHU for the first time. For the preparation of linear PHU, it is divided into two steps of prepolymerization and chain extension. The process is as follows: firstly, an excess diisocyanate monomer is reacted with a macromolecular diol to obtain an isocyanate group-terminated prepolymer. Then, add the diol chain extender of ketal (aldehyde) protection and prepolymer reaction to obtain PU ketal (aldehyde), finally, under acidic condition, ketal (aldehyde) in PU ketal (aldehyde) structure ) protecting group is hydrolyzed into hydroxyl to obtain PHU. For the preparation of crosslinked PHU, the process is: react the above-mentioned linear PHU with diisocyanate monomer, control the ratio of PHU to diisocyanate monomer, so that a part of the hydroxyl group remains on the main chain of PHU, so as to obtain crosslinked PHU. Compared with the prior art, the invention has simple operation, readily available raw materials, low economic cost and high product yield, and is suitable for large-scale industrial production.