676 results about "Capillarities" patented technology

The invention provides a solar interface evaporator based on amphoteric polyelectrolyte photo-thermal hydrogel, a preparation method and application, and belongs to the field of solar interface evaporation. The solar interface evaporator with a three-dimensional multi-surface evaporation structure is prepared by combining the polyelectrolyte resisting effect of the amphoteric polyelectrolyte photo-thermal hydrogel and the porous capillary effect of the sponge, and has the characteristics of high light absorptivity, good water absorption effect, excellent antibacterial property, mechanical property, salt resistance, evaporation property and the like; particularly, compared with a traditional hydrogel-based solar interface evaporator, the water delivery capacity and the salt resistance in high-concentration saline water are greatly improved through the application of the autonomously designed zwitterionic hydrogel, water molecules in the saline water are activated through the cooperation of salt-resistant ionized water, the evaporation enthalpy is reduced, and the evaporation efficiency is improved. And a great positive effect is achieved on improvement of the evaporation rate. The evaporator is easy to prepare and excellent in multi-dimensional performance, and a new way and thought are provided for application to seawater desalination and wastewater treatment.

The utility model provides an electronic atomization device and a liquid storage device for the electronic atomization device. The electronic atomization device comprises a first main body and a second main body, the first main body comprises a first liquid storage cavity and at least one liquid output connector; the second main body comprises a second liquid storage cavity, an atomization assembly and at least one liquid input interface; when the first body is combined with the second body, the liquid output connector is at least partially inserted into the liquid input connector, and a capillary channel is established between the liquid output connector and the liquid input connector. The capillary channel can adsorb and maintain the liquid matrix output from the liquid output connector through the capillary action, and when the air pressure difference between the second liquid storage cavity and the first liquid storage cavity changes, the adsorbed and maintained liquid matrix is supplemented to the second liquid storage cavity. According to the electronic atomization device, the first liquid storage cavity in the first main body can supplement a preset amount of liquid matrix to the second liquid storage cavity in the second main body; the action of supplementing the liquid matrix is automatically carried out, and manual operation intervention is not needed.

The invention discloses a drainage plate for an unsaturated soil roadbed in a cold region. The drainage plate comprises a hydrophobic layer, a drainage layer and an anti-freezing layer which are sequentially arranged in parallel, the hydrophobic layer is made of a hydrophobic material; the drainage layer comprises at least two layers of capillary structures and water-absorbing fibers filled between the capillary structures, the outer layer is a vertical honeycomb tube, the inner layer is a horizontal honeycomb tube, and the radius is gradually reduced from outside to inside; the capillary tube structure adsorbs pore water in unsaturated soil through capillary action, and the water-absorbing fibers drive water to be discharged out of the roadbed through water content difference; and the anti-freezing layer is made of a low-temperature-resistant polymeric material. According to the drainage plate, through the capillary action of the middle three-dimensional drainage layer, pore water dispersed in unsaturated soil is actively adsorbed, water is directionally discharged in combination with gravity, and the problem that a traditional drainage pipe is low in efficiency in the unsaturated soil is solved; meanwhile, through double-layer protection of the hydrophobic layer and the anti-freezing layer, a moisture seepage path is blocked, soil particles are prevented from invading, and a drainage channel is prevented from being blocked.

The invention discloses a supported nickel catalyst for preparing 1, 3-propylene glycol through hydrogenation of 3-hydroxypropionaldehyde as well as a preparation method and application of the supported nickel catalyst, and relates to the technical field of catalysts. The modified long-chain multi-carbon inducer is used, and a special long-chain molecular structure and a branched chain group of the inducer can effectively and selectively adsorb and occupy a micropore impregnation site; the preparation method has the beneficial effects that more active component nickel species are obviously promoted to be dispersed in main reaction confinement spaces such as mesopores and macropores and interact with the carrier to form effective active sites, and active component steeping liquor is inhibited from entering micropore channels due to capillary action; the active site failure caused by agglomeration of nickel species in micropores in the subsequent drying and roasting process of the catalyst precursor is avoided, the efficient and directional reaction is ensured, the generation of by-products is greatly reduced, the pressure is relieved for the subsequent product rectification separation, and the final product purity is improved. The catalyst provided by the invention can still keep an excellent catalytic effect when the air speed of a 3-hydroxypropionaldehyde solution is increased to 6.5 h <-1 >.

The invention belongs to the field of miRNA detection, and particularly relates to a non-diagnostic-purpose miRNA detection method based on dual cascade amplification of a Pt nanoprobe and a kit. Comprising the following steps: 1) obtaining a Pt NPs (at) Ab nanoprobe; (2) carrying out an ISAR-CRISPR / Cas12a reaction; and (3) dripping on a nucleic acid test strip for capillary action, adding a quenching substrate into the T line for catalysis after the chromatographic reaction is finished, and judging the concentration of miRNA by observing the T line. According to the invention, a Pt nanoprobe is introduced as a fluorescence quenching probe, and after TMB is dropwise added, double-amplification cascade fluorescence quenching is generated. Due to the adoption of a double-amplification cascade fluorescence quenching strategy, the fluorescence quenching efficiency can be greatly improved, so that an ultra-low background fluorescence signal is ensured. The method has a good application prospect, can be used as a general detection method for detecting a specific nucleic acid target, and is widely applied to the fields of nucleic acid detection and the like.

The invention relates to the field of photovoltaic power generation, and particularly discloses a climate self-adaptive photovoltaic cooling method and system based on interface evaporation, and the system comprises a hydrophilic and hydrophobic composite radiation refrigeration film which is used for capturing atmospheric moisture through a radiation refrigeration effect under a low-radiation condition to form a cooling water source; the bionic water conveying structure comprises a modified silicone tube and a juncus roemerianus bundle and is used for conveying the captured water to the high-level water tank through capillary action; according to the invention, by fusing interface evaporation and radiation refrigeration technologies, the system realizes efficient cooling and energy recovery of the photovoltaic module; under the condition of strong irradiation, the gradient wettability interface evaporation layer takes away waste heat of the module through directional water film flow, so that the temperature of the photovoltaic module is reduced, the photoelectric conversion efficiency is improved, and meanwhile, the daily generating capacity is increased; the cooling effect is obviously better than that of a traditional natural convection or phase change material cooling mode, and efficient heat transfer is achieved through phase change latent heat utilization of interface evaporation.

The invention discloses a photovoltaic panel passive cooling system capable of automatically absorbing water, evaporating and cooling based on capillary action. The photovoltaic panel passive cooling system comprises a photovoltaic panel, a photovoltaic support, a wicking material, a water supply assembly, a water conveying pipe, a water storage tank and an adjusting and fixing assembly. The photovoltaic panel is fixedly installed through the photovoltaic support, and the installation mode is horizontal, inclined or vertical. The two ends of the water supply assembly are horizontally arranged along the edges of the two sides of the photovoltaic panel. The wicking material is attached to the back surface of the photovoltaic panel, and the lower end of the wicking material extends into the water supply assembly; the water supply assembly is connected with the water storage tank through a water conveying pipe. The adjusting and fixing assembly is connected with the water supply assembly and the photovoltaic panel and used for adjusting the vertical state of the water supply assembly. According to the invention, an energy-saving, water-saving, efficient and reliable photovoltaic panel cooling effect is realized, so that the power generation efficiency of a photovoltaic system is improved and the service life of the photovoltaic system is prolonged.

The invention discloses a tunnel base soil body active drainage system device and method based on drainage nails, and relates to the technical field of tunnel construction. The device comprises capillary adsorption tube wells, side ditches and a pumping drainage device, the capillary adsorption tube wells are arranged on the two sides of the bottom of a tunnel, and the multiple capillary adsorption tube wells are arranged in the longitudinal direction of the tunnel; each capillary adsorption tube well is arranged in the vertical direction and extends into a base soil body below a tunnel bottom, each capillary adsorption tube well comprises a waterproof tube section, a water seepage tube section and a bottom precipitation tube section which are sequentially arranged, and every two adjacent tube sections are connected through a plugging connector. The side ditches are arranged on the two sides of the railway ballast and used for gathering and discharging water in the capillary adsorption tube wells. And the pumping and draining device is used for pumping and draining water in the capillary adsorption tube well into the side ditch. A natural filter layer can be formed under the capillary action of the water seepage pipe section, silt is effectively prevented from inrush, and therefore the method is suitable for long-term water pumping and drainage construction in the heavy haul railway base operation period, and frequent pipe well cleaning does not need to be carried out.

A cosmetic applicator capable of stably applying a cosmetic even when the cosmetic contains large particles. A cosmetic applicator includes a barrel, a brush made of bundled fibers and provided in front of the barrel, a cosmetic accommodation portion arranged in a space behind the barrel, a guide that guides a cosmetic from the cosmetic accommodation portion to the brush, a collector that has a comb-shaped outer circumferential surface and that is disposed inside the barrel and at an outer circumferential portion of the guide, and a front barrel supporting the brush at a front portion of the barrel. A capillary force of the guide is 50 to 200 (mm) (as measured using purified water in an environment of 25° C.). (B) / (A) is 0.8 or greater, where (A) (mg) is an amount of cosmetic liquid discharged for 1 (m), and (B) (mg) is an amount of cosmetic liquid discharged for 1 (m) after 30 (m).

The invention discloses a film transfer and immersion type dual-purpose sizing machine, and relates to the technical field of sizing machines, the film transfer and immersion type dual-purpose sizing machine comprises a sizing machine shell, an upper sizing roller is arranged at the upper end of the interior of the sizing machine shell, a lower sizing roller is arranged at the lower end of the interior of the sizing machine shell, and sizing beams are arranged at the front end and the rear end of the interior of the sizing machine shell; and a filtering mechanism for treating glue is arranged in the collecting box. According to the membrane transfer and soaking type dual-purpose sizing machine, scraped glue is discharged through a discharging pipe and collected through a collecting box, after glue collection, the glue is filtered through a filter screen and collected to the lower end of the interior of the collecting box, and after the glue is adsorbed through the capillary action of paper, dust on the surface of the paper can be left in the glue; and the glue is filtered through the filter screen, so that the quality of the glue during recycling is guaranteed, and the overall stability during use is improved.

The invention relates to a two-phase cooling heat dissipation energy storage box and a refrigerant control method, the two-phase cooling heat dissipation energy storage box comprises a box body and a battery group, a liquid accumulation cavity is arranged at the bottom of the box body, and a refrigerant medium is contained in the liquid accumulation cavity; the battery group comprises a plurality of battery cells which are arranged in sequence, and a containing gap is formed between every two adjacent battery cells; a cooling layer and a gas channel are arranged in the accommodating gap; the capillary action of the cooling layer between the adjacent battery cells sucks the refrigerant medium, so that the refrigerant medium covers the surfaces of the battery cells, and the refrigerant part of the cooling layer is evaporated to absorb heat, thereby avoiding excessive temperature rise, effectively inhibiting heat spread after thermal runaway of the battery cells, and satisfying safe and reliable operation of the battery cells. The heat exchange efficiency of immersion liquid is improved, meanwhile, the liquid consumption is greatly reduced, and the manufacturing cost of the whole energy storage system is greatly reduced on the premise that the extreme heat dissipation performance of a semi-immersion cooling mode is kept.

Even if the cap is removed from the mouth of the container while the internal pressure of the container body has increased, the contents will not spray out through the connecting passage. [Solution] The container comprises a container body 11 for containing the liquid contents, a cylindrical stopper member 12 attached to the mouth 11a of the container body, and an impregnating material 13 attached to the inside of the stopper member and capable of impregnating the liquid contents. The stopper member comprises a containment cylinder 15 for containing the impregnating material with its upper end protruding, and a communication cylinder 16 that connects the inside of the containment cylinder and the inside of the container body. A communication passage 21 is provided between the containment cylinder and the impregnating material, connecting the inside of the communication cylinder and the upper end opening 15b of the containment cylinder. The communication cylinder has a main passage 22 that connects the communication passage and the inside of the container body, and a capillary passage 23 that connects the communication passage and the inside of the container body, and has a smaller flow path cross-sectional area than the main passage, causing capillary action, arranged in parallel.

The invention discloses a boron-containing copper-based three-dimensional metal organic framework material as well as a preparation method and application thereof, and belongs to the technical field of fine chemical engineering. The preparation method comprises the following steps: preparing Zn-based MBON from zinc salt, boric acid and imidazole through a hydrothermal method, and then completely replacing the zinc component with copper to obtain Cu-based MBON, namely the boron-containing copper-based three-dimensional metal organic framework material. The specific surface area of the material is large, and a three-dimensional nano flower-shaped unique structure is formed. The prepared material is used as a catalyst for furfural electro-hydrogenation and carbon dioxide reduction reaction, the diffusion efficiency of reactants (such as furfural and CO2) can be enhanced, rapid desorption of products (such as furfuryl alcohol and ethylene) can be promoted through the surface capillary action, meanwhile, generation of by-products caused by excessive reaction is inhibited, and the selectivity of target products is improved.

A diffuser for separating a gas component and a liquid component of a liquid-gas mixture to reduce slosh in vehicle systems is described herein. The diffuser includes a wall with a gas end, a liquid end, and multiple vanes partially extending from the liquid side to the gas side. The vanes are spaced apart from each other by a given distance to permit the liquid to flow toward the liquid end via capillary action.

The invention discloses a hydraulic concrete ion transmission method based on a real pore structure and solution composition, and relates to the technical field of ion transmission. Comprising the following steps: constructing a multi-scale diffusion model based on fractal dimensions; obtaining a pore network based on a multi-scale diffusion model, and forming an electrochemical potential gradient through a local micro-region of the pore network; constructing an ion transmission model based on the electrochemical potential gradient, the capillary action parameter and the convection parameter; and evaluating an ion transmission result based on the ion transmission model. According to the method, the electrochemical potential gradient, capillary action parameters and convection parameters are considered, the constructed ion transmission model can well reproduce the ion distribution in the test, and the ion distribution in the concrete at different stages can be accurately predicted.

A mesh woven structure with capillary action is applied to a two-phase fluid heat dissipation unit. The mesh woven structure includes multiple latitudinal lines and multiple longitudinal lines. At least two longitudinal lines are selectively arranged as a longitudinal line set. The mesh woven structure is woven from the single latitudinal line and one cooperative longitudinal line set, which sequentially repeatedly intersect (and overlap with) each other. Accordingly, the number of the voids of the mesh woven structure is increased so that the mesh woven structure has better capillary attraction and water collection (containing) ability to greatly enhance the heat transfer performance.

The present invention belongs to the technical field of CPU water cooling equipment, and specifically relates to an efficient data center CPU heat dissipation device, including a water cooling head, a radiator and a hose; the hose is connected between the water cooling head and the radiator; the water cooling head includes a water cooling plate, and a boss is arranged on the lower surface of the water cooling plate; when in use, the boss abuts against the upper end surface of the CPU and cools the CPU; a plurality of grids perpendicular to the boss are arranged around the boss, and a 0.5-1.3mm slit is formed between adjacent grids, and the slit can absorb and store overflowed liquid metal through capillary action. In this scheme, since there are slits between the grids at the edge of the boss, the overflowed liquid metal can be absorbed and stored through capillary action, and the liquid metal can be supplemented when there is too little liquid metal between the water cooling head and the CPU, and the liquid metal can be absorbed and stored when there is too much liquid metal, thereby reducing the probability of the overflowed liquid metal flowing to the server motherboard and reducing the probability of the motherboard short circuit.

A thermal protection structure of a high-temperature and supersonic aircraft belongs to the technical field of thermal protection of aircrafts under high heat flux and comprises a water absorption layer, a front edge area and two side areas, and the front edge area comprises a first evaporative cooling porous medium layer, a cross-scale porous medium layer and a high-temperature-resistant wall surface which are sequentially laid on the outer side of the front edge of the water absorption layer; the two side areas comprise a second evaporative cooling porous medium layer and a third evaporative cooling porous medium layer which are laid on the outer sides of the two sides of the water absorption layer respectively, and a coolant conveying pipeline communicated with the front edge and the two side areas is arranged on the inner side of the water absorption layer; fluid is sucked to the high-temperature-resistant wall face through the capillary acting force of micron-scale and nano-scale pores of the first evaporative cooling porous medium layer and the cross-scale porous medium layer, the millimeter-scale pores of the cross-scale porous medium layer provide steam escape channels, and the high-temperature-resistant wall face blocks direct disturbance of high-temperature main flow to the fluid in the porous medium. Steam outlets on two sides of a front edge stagnation point discharge steam; the device has the advantages of no need of an additional liquid supply power device, high temperature resistance and high cooling efficiency.

An electrode plate comprises a current collector, an active material layer and a functional layer. The active material layer comprises a main body area and a thinned area, the thinned area being arranged at the end of the main body area in a first direction, and the thickness of the main body area being greater than the thickness of the thinned area. The thinned area of the active material layer of the electrode plate is provided with the functional layer that allows the electrolyte to pass through, such that after the electrode plate is wound or stacked to form an electrode assembly, a gap between the functional layer and the separator is small, thus helping to exhibit the capillary action, and enabling the electrolyte to pass through the functional layer to quickly infiltrate the thinned area.

A semiconductor device includes a semiconductor chip having a semiconductor integrated circuit. At least a portion of the cooling channel is formed in the semiconductor chip. The first capillary core structure may be disposed on a bottom of the cooling channel that is parallel to an upper surface of the semiconductor chip in a lateral direction. The first capillary wick structure may move the liquid coolant in a lateral direction along the bottom of the cooling channel by capillary action. A second capillary wick structure may be disposed along the inner surface of the steam chamber and may move the liquid coolant along the inner surface of the steam chamber by capillary action.

The condensing device comprises a condensing part, a flow guide layer, at least one flow guide piece and a flow guide channel, the flow guide layer is arranged on the condensing face of the condensing part, and the flow guide layer and the flow guide piece are each provided with a capillary structure; one end face of the flow guide piece is connected with the flow guide layer in an attached mode and arranged in the flow guide channel, and the flow guide channel is used for keeping attached connection. Condensate generated on the condensing surface and the flow guide layer is continuously discharged through the capillary action and the gravity action of the flow guide layer and the flow guide piece. The invention further relates to a method for operating a condensing device and to a domestic appliance comprising a condensing device.

A liquid storage bottle including a groove or a rib that can hold, by capillary action, ink adhering to a nozzle tip part of the liquid storage bottle after the ink is supplied from the liquid storage bottle to a liquid tank, and a liquid replenishment system.

The utility model discloses a composite uniform-temperature plate which comprises a top plate. The bottom plate is buckled with the top plate, and a vacuum cavity is defined by the bottom plate and the top plate; the first supporting columns are arranged in the vacuum chamber and abut against the top plate and the bottom plate respectively; a plurality of drainage grooves are formed in the outer circumferential surface of the first supporting column; and the first capillary liquid absorption structure is arranged in the drainage groove. In the vacuum chamber, the drainage groove provides a special channel for flowing of the working medium, and the liquid working medium can be subjected to a stronger capillary action and can be quickly sucked back to a heating area, so that the capillary suction force of the composite vapor chamber to the working medium is enhanced, and the backflow speed is increased; meanwhile, the drainage groove is filled with the first capillary liquid suction structure, the capillary suction force of the liquid working medium in the vacuum cavity is further enhanced, the higher the capillary suction force is, the higher the flowing speed of the liquid working medium is, the working medium can flow back along the drainage groove at a higher speed, the backflow speed of the working medium can be further increased, and the service life of the working medium is prolonged. And the heat transfer efficiency of the composite vapor chamber is further improved.

The invention relates to an asymmetric bionic texture pyramid micro-column array device for enhancing film evaporation, the device can stably transport a coolant and expand the effective evaporation area, and the device specifically comprises: a micro-column unit, the top of which is made of a hydrophobic material and the side wall of which is subjected to hydrophilic treatment and has a textured structure; the micro-column array is composed of micro-column units which are asymmetrically arranged, and the wetting perimeter, period and gradient of the micro-column array are subjected to accurate optimization design; in addition, according to the micro-column array, the capillary transport efficiency of the liquid is further enhanced by adjusting the distance and the height gradient between the micro-columns, and therefore the evaporation area of the thin liquid film is effectively expanded. The top of the micro-column unit is made of a hydrophobic material, the side wall is subjected to hydrophilic treatment and is combined with a micro-texture structure, the distribution and capillary action of liquid are optimized, and the stable transportation capacity of the liquid on the surface of the micro-column is remarkably improved. The device has excellent heat dissipation performance while improving the liquid transportation efficiency and the thin film evaporation performance, and is widely applied to the high-heat-flux fields such as efficient heat dissipation and microelectronic cooling.

The invention relates to the technical field of preparation of ozone through electro-catalysis, and discloses a device and a method for preparing ozone gas through electro-catalysis without an ion exchange membrane. The device comprises a porous anode, a porous cathode, a hydrophilic insulating diaphragm, an anode collector plate with a gas flow channel, a cathode collector plate with a gas flow channel and an electrolyte chamber, and the porous anode and the porous cathode are separated by the hydrophilic insulating diaphragm. The hydrophilic insulating diaphragm guides and restrains electrolyte on the surfaces of the porous anode and the cathode through capillary action, in the electrifying process, electrocatalytic oxidation of water occurs on the surface of the porous anode, ozone is generated, external air is fed into a flow channel of the anode collector plate, and then ozone gas generated by the anode is brought out of the anode. The device can efficiently generate ozone gas under the conditions of room temperature and neutral electrolyte solution, and has the advantages of excellent Faraday efficiency, good safety, wide application field and wide application prospect.

The invention relates to the technical field of atomization, and provides a preparation method of liquid absorbing cotton, the liquid absorbing cotton and an atomizer. First fibers are obtained, in the horizontal direction, lapping is conducted on the first fibers in the first direction, drafting, reinforcing shaping and cutting are conducted on the first fibers in the second direction, and a first cotton body with a through hole in the center position is obtained; manufacturing a second cotton body; second fibers are obtained, lapping is conducted on the second fibers in the first direction in the horizontal direction, drafting, reinforcing, shaping and cutting are conducted in the second direction, and a second cotton body with the density larger than that of the first cotton body is obtained; a caulking groove for accommodating the first cotton body is formed in the second cotton body; the first cotton body and the second cotton body are combined together; the first cotton body and the second cotton body are combined to form the liquid absorption cotton of the double-layer structure, the density of the first cotton body is smaller than that of the second cotton body, and liquid can be actively transferred to the second cotton body under the driving of the density difference and the capillary action.

The invention discloses a high-precision tool setting device for numerical control machining, which belongs to the technical field of numerical control machining and comprises a control system, a worktable, a tool arranged on the worktable, a tool setting gauge fixedly mounted on the worktable and a driving mechanism arranged on the worktable. The blow-off drying mechanism comprises fixing bases symmetrically and fixedly installed on the two sides of the tool setting gauge, a blowing assembly arranged on the two fixing bases, a first sensor and a second sensor, wherein the first sensor and the second sensor are arranged at the top and the bottom of the blowing assembly respectively. According to the numerical control machining high-precision tool setting device, the blow-off drying mechanism, the shielding protection mechanism and the driving mechanism are matched, air blowing, liquid removing and drying can be conducted on a tool nose of a tool firstly, meanwhile, an umbrella-shaped cover is used for protecting and shielding a tool setting gauge, contact tool setting is completed after resetting and avoiding are conducted, capillary acting force generated by a cutting liquid film is fundamentally eliminated, and the working efficiency is improved. Real and reliable contact between the tool nose and the tool setting gauge is guaranteed, and tool setting precision and repeated reliability are improved.

The invention discloses a high-salt-resistance double-layer self-floating hydrogel evaporator and a preparation method and application thereof.The preparation method comprises the steps that firstly, sodium alginate is dissolved in water, then pyrrole is fully stirred in the sodium alginate solution, and a uniformly-mixed solution is obtained; dipping the melamine foam in the mixed solution, soaking the melamine foam in a CaCl2 solution for crosslinking, and finally soaking the primarily crosslinked melamine foam in a FeCl3 solution to oxidize the surface of the melamine foam; the preparation process is simple, the hydrogel evaporator has extremely high hydrophilicity, the three-dimensional network structure provides a favorable channel for water transmission, a certain amount of calcium alginate grids are damaged during oxidation to form capillary action with melamine foam of a carrier, the escape efficiency of water molecules is improved, and the service life of the hydrogel evaporator is prolonged. The polypyrrole nanospheres with the three-dimensional structure can perform multiple times of refraction and reflection on light to enhance light absorption, and the evaporation efficiency of aerogel intermediate water is accelerated.

The invention discloses a plant cultivation system and method based on liquid-gas-solid three-state cooperative regulation, the plant cultivation system based on liquid-gas-solid three-state cooperative regulation comprises a cultivation container, a field planting skeleton, a degradation film and a regulation area; the planting framework is arranged in the cultivation container and divides the interior of the cultivation container into a liquid area, an air area and a substrate area, the degradation film covers the space between the air area and the substrate area, and a plant root system can pierce the degradation film from the substrate area through growth and extends to the air area and the liquid area. The capillary action of nutrient and temperature and humidity adjustment, water evaporation or liquid and substrate coupling can be obtained, the substrate can keep moist for a long time, plants are induced to form water roots and expand root growth space, fertilizer water can be circularly supplied through bottom liquid, the fertilizer water can be easily adapted to and controlled by plant growth requirements, and concentrated regulation and unified supply of the fertilizer water can be realized; labor is saved; and time efficiency is improved.

The invention discloses a functional fabric capable of synchronously achieving electric heating and infrared stealth and a preparation method and application thereof.The fabric is of a sandwich structure, the outer layer is an infrared stealth layer, cellulose is used for modifying the fabric, the porosity is reduced, the capillary action is improved, a low-emissivity material and the fabric are tightly combined, the surface is smooth, the problem that inorganic materials fall off is solved, and the fabric has the function of infrared stealth. The infrared stealth effect is enhanced; the interlayer is a heat insulation layer, the aerogel is subjected to silanization modification, rigid chain segments are introduced to form a rigid-flexible physical cross-linked network, the hydrogen bond strength and mechanical performance are improved, heat loss of the inner layer is slowed down, collaborative stealth is achieved, and infrared stealth of the thin aerogel under heating is achieved; the inner layer is an electric heating layer, PEDOT: PSS and CF are compounded, and the pi-pi conjugation action of the PEDOT: PSS and the CF changes the arrangement of macromolecular chains, reduces the contact resistance of the CF, improves the conductivity of the PEDOT: PSS and enhances the electric heating performance.