31results about How to "Process reversible" patented technology

The invention discloses an intelligent composite material based on crystal photo-induced phase transformation and a preparation method thereof. A polymer film is used as a flexible substrate, the surface of the flexible substrate is subjected to friction treatment to obtain a micro groove structure, the surface of the substrate is coated with a micromolecular photoresponse crystal material capable of generating photo-induced phase transformation, and annealing is carried out to obtain a photically driven composite film capable of converting optical energy into mechanical energy. After being cut, the composite film can generate specific deformation, such as bending, curling, spiraling and moving, under specific wavelength illumination, and the process is reversible. The preparation method is simple, and the material is easy to obtain, large in deformation, high in response speed, controllable, functional and wide in application range, can be used for a flexible environment such as muscles and joints of an artificial mechanical system and can also be applied to the field of micromechanical systems.

The invention relates to a substep clamping-type valve prosthesis and a conveying system thereof. The valve prosthesis comprises a support body and a clamping body, the support body is provided with achannel for blood to flow in, and the clamping body comprises a first clamping body and a second clamping body; the support body is connected to one end of the first clamping body, the other end of the first clamping body is a free end, and the second clamping body is connected with the first clamping body; the clamping body has three forms from compression to complete release in sequence, and inthe first form, the first clamping body and the second clamping body are compressed and limited; in the second form, the second clamping body is limited, and the first clamping body extends in the radical direction of the support body to reach between the valve and the heart wall; in the third form, the second clamping body extends out of the first clamping body, extends in the circumference direction of the support body and abuts against the outer surface of the support body. The autologous valve and adjacent tissue are clamped among the second clamping body, the first clamping body and thesupport body, the contact area of the valve prosthesis and the autologous tissue can be increased, the position stability in the heart is improved, and the success rate of the surgery is increased.

The invention provides a cell sorting method, a self-assembly system of sodium alga acid and a biotin-streptavidin system are utilized, cell sorting is conducted through combination of an antibody and specificity of a cell surface marker, and objective cells without magnetic beads are finally obtained; besides, in the sorting process, the magnetic beads are not in direct contact with the cells, and the cytotoxicity of the magnetic beads and mechanical damage to the cells are avoided. The method includes the steps that marking biotin through the antibody, marking the magnetic beads through the streptavidin, incubating the antibody marked by the biotin and the cells, incubating the cell-antibody compound and the magnetic beads marked by the streptavidin, conducting magnetic gathering on cell-magnetic bead compound and disintegrating the cell-magnetic bead compound and obtaining the objective cells with the magnetic beads. According to the cell sorting method, the self-assembly system of sodium alga acid, a biotin-streptavidin system and an antigen-antibody system are combined, the advantages of magnetic bead sorting can be given play, the cell sorting experiment is simpler in process, more cells are obtained, and the quality is higher.

The invention provides a debugging and measuring device and a method for measuring and debugging resistance of a thermal head. The debugging and measuring device is used for debugging and measuring resistance of the thermal head, the debugging and measuring device comprises a controller, a power assembly connected with the thermal head and the controller, and a resistance tester connected with thethermal head and the controller, wherein the power assembly is provided with a low voltage pulse power and a high voltage pulse power. The debugging and measuring device is advantaged in that throughcombination of the pulse voltage high-frequency discharge method and the pulse voltage high-temperature oxidation method, bi-directional resistance debugging of a heating resistor is realized, the heating resistor of the thick film thermal head is made to have good resistance consistency, high-precision requirement is satisfied, and the debugging and measuring device has advantages of simple structure, convenient operation, reversible process, reduced production cost and greatly-improved product quality and production efficiency.

The invention discloses a blasting method and application of using shear thickening liquid as blockage of blasting blast holes. The method comprises the steps of filling the blasting blast holes withthe shear thickening liquid, and using the shear thickening liquid to completely cover or partially cover gas blasters in the blasting blast holes; using the shear thickening liquid to completely cover the blasting blast holes to completely fill the gas blasters in the blasting blast holes; detonating the gas blasters. The blasting method applies the shear thickening liquid as a blast hole blockage material for blocking the blast holes, the blockage effect of the blast holes is good, flying stones and splashing are hardly generated during the blasting process, the blasting degree is deep, theblasting efficiency is high, the method is not limited to the arrangement of the blasting blast holes, the freedom of arrangement of the blasting blast holes is more flexible, the blasting process ismore moderate, strong air shock waves are nor generated, damage to the surrounding environment and workers is not caused, blasting noise is small, and the blasting process is safe.

The invention discloses a coolant, and belongs to the field of novel materials. The coolant is characterized in that sepiolite is used as the raw materials, puffed, and connected with sulfydryl groups, and the polarity groups in a structure of the sepiolite and carbomer dispersion can form hydrogen bonds with polarity groups in high water absorbent resin so as to substitute the lost water molecules around the polarity groups; the metal ions in the modified sepiolite interlayer structure are dissolved with carbomer, the ionized hydrogen ions generate one part of ion exchange, the produced metalions can provide conditions for the coordination crosslinking of macromolecules in the system, and the activity and stability of the internal biological macromolecules requiring cooling are effectively improved; the coordination crosslinking is physical crosslinking, the process is reversible, the phase change temperature range is further increased, and the cooling effect is improved; the problems of slow water absorbing speed, small water absorbing amount and narrow phase-transition temperature range in the existing coolant are solved.

The invention discloses a rapid shaping device and method based on an ultraviolet exposed dynamic mask plate technology. A novel efficient and environment-friendly rapid shaping technology is formed through utilizing an ultraviolet exposed dynamic mask plate, an ultraviolet exposed environment-friendly mask plate is generated through the permeation resistance action of ozone for ultraviolet, and an ozone mask plate is applied to the field of rapid manufacturing. According to the method, ultraviolet exposure can be carried out repeatedly, the reaction process is free of harmful gases, efficiency and environmental protection are achieved, and compared with a traditional rapid shaping machine, the rapid shaping device has the advantages that the cost is reduced, the service life of the device is prolonged, and the device is applicable to the fields of rapid manufacturing of medium and small batches of resin die samples, rapid trial production of novel products, and the like.

The invention provides a reversible thermochromic functional composite phase change material which is prepared by the following steps: by taking crystal violet lactone, bisphenol A, stearyl alcohol and an olefin block copolymer OBC as raw materials, firstly melting and blending the crystal violet lactone, the bisphenol A and the stearyl alcohol to obtain a reversible thermochromic blend; and carrying out hot press molding on the reversible thermochromic blend and the olefin block copolymer OBC by adopting a hot press method, and naturally cooling to obtain the reversible thermochromic functional composite phase change material which has both the reversible thermochromic function and the phase change function and has the difference between the reversible thermochromic temperature and the phase change temperature less than 5 DEG C. The thermochromism process is a reversible process, crystal violet lactone provides a color-changing color base, bisphenol A causes thermochromism, and stearyl alcohol serves as a cosolvent to adjust the color-changing temperature. The preparation method has the advantages that the phase change material stearyl alcohol is used as a connecting bridge of a color change system and a phase change system, reversible thermochromism and phase change temperature are adjusted, and the phase change heat storage material has the phase change heat storage performance and the photothermal conversion performance at the same time.

The invention discloses a rapid prototyping device and method based on the ultraviolet exposure dynamic mask technology. The dynamic mask plate of ultraviolet exposure is used to form an effective and environmentally friendly rapid prototyping new technology. The blocking effect of ozone on ultraviolet rays generates ultraviolet exposure Environmentally friendly masks, applying ozone masks to the field of rapid manufacturing. The method of the present invention can be repeatedly exposed to ultraviolet rays, no harmful gas is generated during the reaction process, it is highly efficient and environmentally friendly, and compared with traditional rapid prototyping machines, it reduces the cost and improves the service life of the equipment, and is suitable for rapid manufacturing and small batches of resin patterns. Rapid trial production of new products and other fields.

The invention discloses a blasting method and application of using mud as blockage of blasting blast holes. The method comprises the steps of filling the blasting blast holes with the mud, and using the mud to completely cover or partially cover blasting amplitude transformers in the blasting blast holes; using the mud to completely cover the blasting blast holes to completely fill the blasting amplitude transformers in the blasting blast holes; detonating the blasting amplitude transformers. The blasting method applies the mud as a blast hole blockage material for blocking the blast holes, the blockage effect of the blast holes is good, flying stones and splashing are hardly generated during the blasting process, the blasting degree is deep, the blasting efficiency is high, the method isnot limited to the arrangement of the blasting blast holes, the freedom of arrangement of the blasting blast holes is more flexible, the blasting process is more moderate, strong air shock waves are nor generated, damage to the surrounding environment and workers is not caused, blasting noise is small, and the blasting process is safe.

The invention relates to the technical field of a building structure, and especially relates to an overhead platform and a building. The overhead platform includes a platform frame and multiple composite bricks disposed on the upper part of the platform frame; and each of the composite bricks includes a load-bearing seal layer, and a material of the load-bearing seal layer is selected from a wasteplastic product. The composite bricks employed by the overhead platform and the building provided by embodiments of the invention enable some waste plastic products to be employed as materials of theload-bearing seal layers, the utilized waste plastic products after remoulding still have good sealing and water proofing performance, so that the composite bricks have good sealing and water proofing performance and function as a water resistance and air resistance, further an internal environment of the overhead platform can be in contact with an external environment, the composite bricks playa role of water resistance and moisture resistance, generation of oxidation rust of the overhead platform due to contact with the external environment is avoided, thereby saving the cost of doing rustproof treatment of the overhead platform, and the production cost of an overhead platform frame is greatly reduced.

The invention discloses a high energy consumption damping wall, and belongs to the technical field of high-rise structure vibration reduction. The high energy consumption damping wall comprises damping plate outer frames, damping plates, and a T-shaped structure; the damping plate outer frames are fixed to a lower floor slab; the multiple damping plates are arranged in the damping plate outer frames, and working chambers formed in the positions, between the adjacent damping plates, in the damping plate outer frames are filled with shear thickening fluids (STF) correspondingly; the horizontal part of the T-shaped structure is fixedly connected with an adjacent last floor structure, the lower vertical part of the T-shaped structure penetrates into the damping plate outer frames and the damping plates, the end of the T-shaped structure is connected to the bottom edges of the damping plates, and the two sides of the T-shaped structure are connected with the damping plates and the damping plate outer frames respectively; a plurality of shear mechanisms are arranged in the damping plates, one ends of the shear mechanisms are fixedly connected with the T-shaped structure, the other ends of the shear mechanisms are directionally hinged to the damping steel plates, and the shear mechanisms are arranged parallel to the plate surfaces of the damping plates; and when a high-rise structureproduces shaking, power of adjacent floors is amplified by the shear mechanisms, the damping plates squeeze the STFs at the high rate, the shear thickening properties of the STFs are excited, high damping force is produced instantaneously, and external input energy is consumed.

The invention discloses a high-speed train secondary suspension semi-automatic control device. The device comprises an air spring mechanism and a control device mechanism; the control mechanism comprises a coupling assembly, a cylinder body assembly and a fixing base; the cylinder body assembly comprises a cylinder barrel, the interior of the cylinder barrel is filled with magnetorheological fluid, and the interior of the cylinder barrel is sequentially provided with a piston rod I, a cylinder cover, a damping piston I, a damping piston II, a damping inner cylinder sleeve, a piston rod II anda cylinder bottom cover from top to bottom; the damping inner cylinder sleeve is a blind hole sleeve structure with an open upper end and a closed lower end, and an excitation coil is arranged on theouter cylindrical surface of the damping inner cylinder sleeve in the circumferential direction; and the damping piston II which is in clearance fit with the inner diameter dimension of the damping inner cylinder sleeve is arranged in the damping inner cylinder sleeve, and an excitation coil is arranged on the outer cylindrical surface of the damping piston II in the circumferential direction. According to the device, the opening degree of a throttling hole of an air spring system can be adaptively adjusted, the structure complexity is reduced on the premise of improving the adaptability of atrain to different operating conditions, and then the manufacturing cost is reduced.

The invention discloses electronic skin capable of quickly and reversibly adhering and deadhering as well as a preparation method and application of the electronic skin. The electronic skin structure sequentially comprises a reversible bonding layer, a supporting layer and a functional layer from bottom to top, the lower surface of the reversible bonding layer is provided with a micro-cylindrical array structure, the reversible bonding layer is made of a shape memory polymer material, the supporting layer is made of an elastomer material, and the functional layer is made of a conductive material. The electronic skin can be attached to the surface of the skin of the human body when the temperature is higher than the temperature of the human body and can be tightly attached to the temperature close to the temperature of the human body, and quick adhesion removal is achieved when the temperature rises to be higher than the temperature of the human body again; the electronic skin has high conductivity, has high responsiveness to various deformations of a human body, and has wide application prospects in the fields of flexible wearable equipment, flexible patch electrodes, intelligent robots, health monitoring and the like.

The invention discloses an automatic cold-insulation window for indoors, which comprises a frame, glass and a blocking cloth. A vertically arranged elastic hanger is fixedly connected, and the blocking cloth can be covered and stored on the elastic hanger. A through hole is opened in the middle of the bottom end of the frame, and a fixing member is arranged in the through hole. The invention utilizes the characteristic that the low-boiling point liquid is gaseous at normal temperature. In a closed volume, when the low-boiling point liquid changes from gaseous state to liquid state, negative pressure will occur, thereby realizing a self-triggering structure according to temperature. The outstanding feature of the present invention is that the power is provided by natural reaction, and the process is reversible, so that the cloth can be dropped in time when the temperature is lowered and there is no care.

The invention discloses a preparation method and application of an iodide ion-doped modified Fe-MOF bulk electrode material. A co-precipitation method is adopted to dissolve iron salt and potassium ferrocyanide respectively, and mix them at normal temperature to prepare Fe-based MOF. , and then plasma treated for 5-20 min, the treated material was heat-treated in potassium iodide solution for 12-48 h, and then dried and centrifuged to obtain MOF electrode material. The beneficial effects of the invention are as follows: the preparation method of the invention is simple, the cost is low, the batch production is easy, and the preparation method is energy-saving and environmentally friendly. The obtained modified MOF materials are applied in iodide ion supercapacitors at 1 A g ‑1 Over 400 F g at current density ‑1 The specific capacitance, but also has a fast reaction rate, with a high energy density. The Coulombic efficiency of nearly 98% is maintained for 5000 cycles. It is expected to have a wide range of application values ​​in the electrode materials of supercapacitors and other energy storage devices.

The invention discloses an indoor automatic cold insulation window. The window comprises a frame, glass and blocking cloth. The glass is arranged in the frame in a sealed mode. The top end of the blocking cloth is hung on the frame. The middle of the top end of the frame is fixedly connected with an elastic hanging piece which is vertically arranged. The blocking cloth can be shaded and containedon the elastic hanging piece. A through hole is formed in the middle of the bottom end of the frame. A fixing piece is arranged in the through hole. The characteristic that the low-boiling-point liquid is in the gas state at normal temperature is utilized. When the low-boiling-point liquid is converted from the gas state to the liquid state within a closed volume, the negative pressure is generated. After that, the self-triggering type structure according to the temperature is achieved. The nursing bed has the outstanding characteristics that power is provided through natural reaction. The process is reversible. The blocking cloth can fall off in time in the shortage condition of the nursing service in the temperature reduction state.

The invention relates to a polyphenylene vinylene derivative with temperature-induced helical conformation reversible regulation and a preparation method thereof. Firstly, L-alanine with a first-generation alkoxyether dendron is obtained, and then reacted with p-ethynylbenzoic acid active ester to obtain a polymer monomer, and the rhodium metal complex catalyzes the polymerization of the monomer to obtain polyphenylene vinylene . This type of polyphenylene vinylene exhibits excellent temperature-sensitive characteristics and one-handed helical conformation in aqueous solution; by changing the temperature, not only the helical conformation is reversed, but also can be completely restored, and the whole process is fast and reversible; in addition, the alkoxy ether end group Different, in addition to adjusting the minimum critical temperature of this type of polymer, it can also change its dominant helical conformation, and also realize the reversible regulation of temperature-induced helical conformation, which has important theoretical research value and potential in the preparation of biomimetic and functional materials. The application value has expanded the application prospect of intelligent helical polymers in the field of biomedicine.

The invention discloses a rigidity-adjustable and damping-adjustable type high-speed train semi-active air suspension device comprising an air spring mechanism and a control device mechanism. The control mechanism comprises a connection assembly, a cylinder body assembly and a fixed base. The cylinder body assembly comprises a cylinder barrel full filled with magnetorheological fluid. A piston rod I, a cylinder head, a damping piston I, a damping piston II, a piston rod II, a supporting spring, a partition plate, a damping piston III, a piston rod III and a cylinder bottom cover are sequentially arranged in the cylinder barrel from top to bottom. The outer cylinder faces of the damping piston I and the damping piston III are each provided with an inwards-concave structure in the circumferential direction, and exciting windings are wound around the outer cylinder faces of the damping piston I and the damping piston III in the peripheral direction correspondingly. The inner cylinder face, in clearance fit with the piston rod I, of the damping piston II is provided with an inwards-concave structure in the peripheral direction, and an exciting winding is wound around the inner cylinder face, in clearance fit with the piston rod I, of the damping piston II in the peripheral direction. By means of the rigidity-adjustable and damping-adjustable type high-speed train semi-active air suspension device, continuous regulation of the throttling hole opening degree between a main air chamber and an additional air chamber of the air spring can be achieved, the adaptability of a high-speed train to different operation working conditions can be improved, and the rigidity-adjustable and damping-adjustable type high-speed train semi-active air suspension device is particularly suitable for high-speed train secondary suspension systems.

The invention relates to a preparation method of a conductive photon crystal aquagel. The preparation method comprises the following steps: dissolving N-isopropyl acrylamide, N,N-methylene-bis acrylamide and acrylic acid in ultrapure water to obtain a reaction solution, heating to 60-80 DEG C and keeping for 15-45 minutes under the conditions of stirring and condensation reflux in an argon protective atmosphere, adding a potassium persulfate solution to react for 4-6 hours to obtain an emulsion, cooling to room temperature in the argon protective atmosphere, centrifugating to obtain PNIPAM-Co-AAc colloid microspheres, and dispersing the PNIPAM-Co-AAc colloid microspheres in ultrapure water to obtain a colloid microsphere dispersion solution; and uniformly mixing the colloid microsphere dispersion solution and a poly(3,4-vinyldioxythienyl)-polystyrolsulfonic acid (PEDOT / PSS) water dispersion solution, and carrying out self-assembly to obtain the conductive photon crystal aquagel. The method is simple and easy to implement, and has important values for the preparation of the conductive photon crystal aquagel.

The application relates to a step-by-step clamping valve prosthesis and its delivery system. The valve prosthesis includes a stent body and a clamping body. The stent body has a channel for blood circulation, and the clamping body includes a first clamping body and a clamping body. The second clamping body, one end of the first clamping body is connected to the support body, and the other end is a free end, the second clamping body is connected to the first clamping body, and the clamping body has three forms from compression to complete release, The first form is that both the first clamping body and the second clamping body are compressed and restricted; the second form is that the second clamping body is restricted, and the first clamping body extends along the radial direction of the stent body to reach the valve leaflet and between the heart walls; the third shape is that the second clamping body protrudes from the first clamping body, extends along the circumference of the stent body and abuts against the outer surface of the stent body, and the autogenous valve leaflet and adjacent tissues are clamped at the second Between the second clamping body, the first clamping body and the support body, the contact surface between the valve prosthesis and the autologous tissue can be increased, the position stability in the heart can be improved, and the success rate of the operation can be improved.

The invention discloses an electrostrictive reversible hydrogen storage structure method. A hydrogen storage material adopted by the electrostrictive reversible hydrogen storage method has a multi-layer sandwich structure. A surface layer of the multi-layer sandwich structure is a catalyst film for decomposing a hydrogen molecule H2 into hydrogen atoms. A second layer of the multi-layer sandwich structure is a pure Mg film or an Mg-based multi-component low alloy film. A third layer of the multi-layer sandwich structure is an electrostrictive material film. The second layer and the third layer are arranged alternately in order along an inward direction. A direction and intensity variable electric field is applied above the multi-layer sandwich structure. Through the applied direction and intensity variable electric field, hydrogen storage and releasing of Mg and Mg alloys are controlled. Through electrostrictive effects produced by electrostrictive films under electric field effects, Mg and Mg alloy films produce stress sigma to change a lattice constant and even a crystal structure, reduce hydrogen storage and releasing temperatures of Mg and Mg alloys and accelerate a reaction speed. Control of the electrostrictive reversible hydrogen storage method is easy and a process of the electrostrictive reversible hydrogen storage method is reversible. The the electrostrictive reversible hydrogen storage method can greatly reduce hydrogen storage and releasing temperatures of a hydrogen battery, wherein the hydrogen storage and releasing temperatures are below 100 DEG C and even reach room temperature, reduce energy consumption and improve efficiency.

The invention relates to a single-upright telescopic carriage applied to an aerial conveyer and other conveyers for transferring. According to the technical scheme provided by the invention, the single-upright telescopic carriage comprises an upright and a carriage mechanism and is characterized in that the carriage mechanism is U-shaped and comprises the upright; the inner sides of two sides of the carriage mechanism are respectively provided with a guide wheel assembly, the upright is provided with a vertical guide rail correspondingly matched with the guide wheel assemblies on two sides ofthe carriage mechanism, and the carriage mechanism slides up and down on the upright through the guide wheel assemblies. The invention has a compact and reasonable structure, saves space and can avoid generating interference with adjacent equipment because a telescopic frame playing a supporting role at the bottom can be freely telescopic. The invention can be used for dual-direction shift of airand ground, and has the advantages of reversible process, work safety and reliability and high automaticity.

An outdoor reactive power compensation device housing is disclosed, which includes a device housing and a fixing plate, the rear side of the fixing plate is fixedly connected with the wall surface through screws, the front side of the fixing plate is provided with a movable groove, a horizontal positioning plate is arranged in the movable groove, the rear side of the positioning plate is fixedly provided with a vertical movable rod, A first spline is fixedly arranged on the rear side of the movable rod, the rear side of the movable rod is provided with a first gear, the rear side of the firstgear is vertically provided with a threaded rod, the lower end of the threaded rod vertically penetrates the groove bottom of the movable groove to the outside of the fixing plate, the two sides of the first gear are meshed and connected with the first spline and the threaded rod respectively, the upper side of the front end of the fixing plate is provided with a square groove, the square groove is provided with a T-shaped rod, the two ends of the T-shaped rod are movably connected with the groove wall of the square groove, the T-shaped rod is clamped into the square groove, the clamping columns are clamped into the clamping groove, and the baffle plate prevents the T-shaped rod from being disengaged from the square groove.

The invention relates to a carriage follower mechanism, which comprises a vertical track, a carriage, an operation track of a follow framework, the follow framework, an operation track of a telescopic framework, the telescopic framework and a link span. The vertical track is fixedly installed. The carriage is connected to the vertical track through a lifting road wheel in a sliding way. The operation track of the follow framework is fixed to the bottom end of the carriage. The follow framework is connected to the follow framework operation track through a follow framework road wheel in a sliding way. The left-right located operation track of the telescopic framework is fixedly installed to the bottom end of the follower framework. The telescopic framework is connected to the operation track of the telescopic framework through a telescopic framework road wheel in a sliding way. A dialing plate air cylinder is connected to the bottom end part of the telescopic framework. A dialing plateis fixedly installed to the end of the dialing plate air cylinder piston rod. The link span is also fixedly installed on the telescopic framework. A support block is arranged at the end of the link span. The invention effectively overcomes the following defects: an aerial conveyer can only be laid on a ground stationary conveyer; the vehicle body cannot be accurately laid on the ground conveyer support.

The invention relates to a single-upright telescopic carriage applied to an aerial conveyer and other conveyers for transferring. According to the technical scheme provided by the invention, the single-upright telescopic carriage comprises an upright and a carriage mechanism and is characterized in that the carriage mechanism is U-shaped and comprises the upright; the inner sides of two sides of the carriage mechanism are respectively provided with a guide wheel assembly, the upright is provided with a vertical guide rail correspondingly matched with the guide wheel assemblies on two sides of the carriage mechanism, and the carriage mechanism slides up and down on the upright through the guide wheel assemblies. The invention has a compact and reasonable structure, saves space and can avoid generating interference with adjacent equipment because a telescopic frame playing a supporting role at the bottom can be freely telescopic. The invention can be used for dual-direction shift of air and ground, and has the advantages of reversible process, work safety and reliability and high automaticity.