473results about How to "Permeable" patented technology

The invention discloses a desert control method of a chemical sand-fixing greening technology based on organic composite materials, and the desert control method is characterized in that hydrophilic polyurethane resin curing agent solution is sprayed on a sand or soil layer of greening objects for sowing the vegetation for forming a porous fixed sand layer. The fixed sand layer formed by the method has appropriate thickness and strength, good durability, good anti-freeze and melt properties and functions of water retention, thermal insulation, ventilation, vegetation and the like. According to the method of the invention, the stable and effective solidifying can be carried out on sand even under the specific desert environments of no abundant groundwater sources and strong wind erosion, and the purpose of vegetation greening can be also realized. The method has large-scale construction properties and good economic performances, thereby being applicable to the needs of large-scale chemical sand fixing and vegetation greening of the vast desert and realizing the plant greening function and the ecological restoration and the control of desertified land.

The invention discloses a groove-type planting method of nano-selenium Chinese yam. Deep soil is crushed and made to float to be mixed with cultivated soil through a deep plowing technology, by adding a certain amount of biological-organic fertilizer containing nano-selenium, the soil is fertile, loose, rich in organics, and is more suitable for growth of the Chinese yam, the selenium content of the Chinese yam is increased, and the nutrition and medicinal value of the Chinese yam are increased. A plurality of U-shaped planting grooves are arranged for planting the Chinese yam, the Chinese yam can transversely grow along the U-shaped planting grooves and is easy to plant and harvest, labor intensity is relieved, and production cost is reduced. Meanwhile, the planting grooves are made of materials with mesh holes, palm bark is laid inside the planting grooves, the breathability and water permeability of the planting grooves can be effectively improved, and waterlogging and droughts are both effectively prevented. A double-layer planting method is adopted, the utilization area of land is effectively increased, and production and income are both increased largely.

The invention relates to synthesis and application of an indole hemicyanine dye, which belongs to the synthesis of a functional dye and the application of the functional dye as a fluorescent dye in the field of fine chemistry industry. Indole quaternary ammonium salts and the corresponding aldehyde are condensed to form compounds with the advantages of large molar extinction coefficient, good light stability, easy synthesis and the like. The molecules have pH probe property, solid-state fluorescent property and binding property with biomacromolecules according to different substituents and anions. Being used as a pH probe, the compound can adjust the pKa of the probe according to the different substituents, and can be used for two-color living cell imaging; being used as a solid-state emission dye, the compound can adjust the solid-state emission wavelength according to different substituents and anions; being used as a biological molecule probe, the compound has good very response to the biological molecule, and living cell membrane permeability ability, can be used for cell staining, can prevent the interference of biomass autofluorescence because of longer absorption and emission wavelengths, and can also reduce the damage of exciting light to cells or biological tissues.

The invention discloses an intelligent rapid propagation method of tea tree. The method comprises the following steps: (1) growing environment: setting parameters of temperature, humidity and nutritional environment required for rapid growth of tea seedlings by using an intelligent control system; (2) seedling culture matrix: sufficiently and uniformly mixing sugar-free perlite and sandy yellow soil with soil pH value between 4.5 and 5.5 in a weight ratio of 1:(3-5); (3) seedling bed sterilization and disinfection treatment: spraying the seedling bed with 800-1,000 time mildothane or carbendazim solution before cuttage; (4) cuttage: ensuring that the cut is smooth and the upper cut is 0.2-0.3cm from the blastema; (5) seedling phase management: carrying out conventional short-ear cuttage management. The method has the advantages of short seeding period and high efficiency; moreover annual production can be performed, and breeding materials can be saved; and the original excellent properties of the tea tree can be maintained, and the cost is low.

The invention provides a pervious material as well as a preparation method and an application thereof. The pervious material is mainly prepared from a coarse aggregate, an adhesive material, a water purification functional material, and water. As being influenced by a natural shape of the coarse aggregate, the interior of the pervious material is provided with multiple gaps with a high porosity, the gaps can allow a water body to pass through, and the water body can be filtered by virtue of the water purification functional material. The pervious material provided by the invention has high compression strength and breaking strength, has functions of storage regulating permeation and storage regulating purification at the same time, and can be used for constructing various underground spaces for purifying and storing dispersed rainwater by virtue of a simple way of building blocks. The preparation method of the pervious material provided by the invention is simple in process and low in cost, and is suitable for large-scale production. The pervious material provided by the invention has the functions of storage regulating permeation and storage regulating purification at the same time, can be used for constructing various underground water purification devices and underground reservoirs, and can also be used for constructing debris flow protection slopes.

The invention discloses an ecological comprehensive treatment system of a northern mountain river channel. The system comprises three sub ecological systems of an ecological permeable dike built on the upstream of a main stream and a branch stream of a mountain river, a reservoir pond arranged at the middle and downstream area of the mountain river and a wet land communicated with the reservoir pond, and adopts an ecological treatment mode of closure-storage-preservation. The construction method comprises the steps of: a) building of the ecological permeable dike; b) setting of a triangular pyramidal wood pile stone cage; c) building of the reservoir pond; d) planting of plants of the reservoir pond; e) building of a wet land system; and f) recovery of a river bank band. The system and the construction method can effectively intercept the mountain debris flow and the river non-point source pollution, adjust the river runoff, improve the hydrologic conditions of the mountain river in non-flood season, decrease the dry season of the mountain river, and facilitate to recover the ecological system of the mountain river. Meanwhile, traditional depressions and empty ponds in the mountain river can be used in construction, so that the engineering building cost is reduced, and the self-cleaning capacity of river water is improved.

A symmetric pentamethyl cyanine dye with a general formula I and application thereof to molecular imaging belong to the fields of organic compound and optical molecular imaging. In the general formula I, X represents Cl or S (CH2)nCOOH or II; R1 represents C1-6 alkyl, (CH2) pOR3 or (CH2) pC6H5; R2 represents H, methyl, hydroxy, halogen, nitro, benzyloxy, alkoxy or a water-soluble group SO3R4; and R4 represents H, sodium ion or potassium ion; and Y<-> represents halogen ion, PF6<-> or TsO<->. An asymmetric synthesis method is employed to prepare a pentamethyl cyanine dye fluorescence probe with the general formula I, in order to solve the problems of an asymmetric synthesis method, such as tedious steps, by-product and low yield. The dye has advantages of low toxicity, active cell membrane permeability and good light stability, and can be used for labeling live cells and in the field of molecular imaging.

The invention provides a cement concrete inner-doping waterproof agent and a preparing method thereof. The cement concrete inner-doping waterproof agent is prepared from, by weight, 0.2-20% of nano aluminum oxide, 0.1-20% of a filer component, 0.1-20% of a hydrophobic component, 0.2-5% of emulsifier and the balance water. The cement concrete inner-doping waterproof agent has the advantages of early high strength, expansibility, hydrophobicity, permeability reduction, electric flux and the like.

The invention relates to a silk/ES semi-perforated structure non-woven material and a method for preparing the silk/ES semi-perforated structure non-woven material. The non-woven material is formed by compositing two fiber net layers. The two fiber net layers are combined through spunlace in a tangling mode. The surface-layer fibers are provided with holes, the bottom-layer fibers are not provided with holes, and accordingly a semi-perforated structure is formed. The preparing method includes the steps that silk fibers are fed into a cotton storage box, debonding and dissociation are carried out to make the silk fibers evenly mixed and opened, and then carding and net laying are carried out to acquire the surface-layer silk fiber net; opening, carding, net laying and hot air bonding and strengthening are carried out on ES fibers to acquire the bottom-layer fiber net; the surface-layer silk fiber net is laid on the bottom-layer fiber net, the surface-layer silk fiber net and the bottom-layer fiber net are put into a spunlace unit together, and after spunlace forming is finished, dewatering, hydrophilic treatment, drying, winding and cutting are carried out to acquire the silk/ES semi-perforated structure non-woven material. The non-woven material prepared according to the method is provided with the semi-perforated structure, silk utilization ratio is high, water permeation time is short, and reverse osmosis amount is small.

The invention provides a steel slag and cement stabilized base material comprising components of steel, cement, water, and an additive. The weight ratio of steel to cement to water is 100:4-6:4-6; and the weight of the additive is 0.6-6% of the weight of cement. According to the invention, graded steel slag serves as an aggregate, and is used for replacing crushed stones. The voids of the aggregate are filled by using a certain amount of a cementing material and the volume of enough mortar. The materials are paved and compacted according to an interlocking principle. The strength of the base is high. With increasing age periods, the base rapidly turns into a board body. Therefore, the material has high strength, high water permeability and high freezing resistance. The material can be used in road base constructions.

The invention relates to a biodegradable polyanhydride copolymer whose aqueous solution has temperature-sensitive in-situ gel properties, a temperature-sensitive hydrogel system of the polyanhydride copolymer and its application. Biodegradable polyanhydride copolymers are BAB, ABA or (AB)n-type amphiphilic block copolymers composed of polyethylene glycol (B) as a hydrophilic block and degradable polyanhydride (A) as a hydrophobic block objects, where n is between 1 and 50. The mass content of the polyethylene glycol block is 20% to 70%, and the mass content of the polyanhydride block is 30% to 80%. The amphiphilic block copolymer proposed in the present invention can biodegrade in vivo, and the degradation product Non-toxic and harmless, it is a new type of artificially synthesized polymer temperature-sensitive hydrogel material, which is simple and convenient to operate, and can provide a suitable drug delivery system and drug delivery method for drug injection positioning drug preparations and controlled release of drugs. It can provide gel matrix and effective means for enzyme immobilization, cell culture, tissue engineering, etc.

The invention provides a compound grease microemulsion used in cosmetics and a preparation method thereof. The microemulsion is prepared by raw materials including compound grease, a surfactant and water, wherein the weight ratio of the compound grease, the surfactant and the water is 1:3-10:20-100; and the compound grease is a mixture of emu oil, mimusops elengi tree fruit oil, tea tree oil and vitamin E. The compound grease microemulsion is transparent or translucent in appearance, the average particle size is less than 100nm, the stability of the grease is enhanced, the compatibility of the grease with water-soluble substances is improved, and the compound grease microemulsion can be used in various skin care products and cleaning and nursing supplies, and is especially applicable to products in a transparent system.

The invention discloses a nanofiltration membrane cleaning agent for brine refinement and a preparation method thereof. The nanofiltration membrane cleaning agent is prepared by mixing the following components: 1-20 parts of an alkaline detergent; 0-5 parts of sodium hexametaphosphate; 0-5 parts of ethylenediaminetetraacetic acid; 2-40 parts of an acid cleaning agent; 0.1-1 part of a surfactant; 0.5-5 parts of a bactericide; and 80-200 parts of water. In a reactor with a stirring function, the alkaline cleaning agent, a dispersant, a chelating agent and the surfactant are added to the water according to the parts, and a mixture is evenly stirred; under normal temperature and normal pressure, the acidic cleaning agent and the bactericide are sequentially added, and the materials are uniformly stirred and dissolved, the materials are continuously stirred for 2 to 4 hours, the pH value is analyzed during stirring, and the pH value is adjusted between 2 and 8 by using ammoniacal liquor orcitric acid. The nanofiltration membrane cleaning agent mainly aims at the pollution of the nanofiltration membrane under a high-salt complex brine system, and can effectively clean the surface pollutant of the nanofiltration membrane, the cleaning effect is better, the cleaning agent can be saved, at the same time, the retention of calcium and magnesium in the cleaning process is stable, and thecleaning agent is also suitable for the cleaning of concentrated seawater or brine nanofiltration membrane pollutant with high calcium and magnesium ions.

The invention discloses a crack plugging agent based on expansion particles and solidifiable particles, and belongs to the technical field of profile control and water plugging of an oil field. The crack plugging agent is composed of the expansion particles and the solidifiable particles which are separately stored, the mass ratio of the solidifiable particles to a solidification agent is 100:(5-20), and the content of the expansion particles is indefinite; the solidifiable particles are prepared from a solid core and film-coated resin in a mass ratio of 100:(5-15). The solidifiable particlesare high in strength, high in temperature resistance and salt tolerance and wide in oil reservoir applicability; an immovable plug formed by the solidifiable particles has an interception function ofa screen net, the breakthrough pressure gradient of the expansion particles in cracks can be obviously improved, the expansion particles are forced to remain in the cracks to continue to give play toa water plugging effect, meanwhile, the immovable plug has a penetration capacity, water, a gel breaker and the like are allowed to pass through the immovable plug so as to remove plugging of the expansion particles, and the crack plugging has restorability. The crack plugging agent has a good water plugging effect in water plugging of the oil field.

The invention discloses an advanced aquarium filtering material with a far infrared ray and a preparation method thereof, and belongs to the field of aquatic filtering materials. The filtering material is of a hollow cylindrical shape or a square three-dimensional shape and is prepared from the following raw materials in part by weight: 20 parts of tourmaline, 8 parts of diatomaceous earth, 40 parts of attaclay, 15 parts of albite powder, 5 parts of quartz powder and 12 parts of organic foaming particle. The finished product can be obtained by the following steps: raw material mixing, extrusion molding, drying, and certain curve sintering. The filtering material has the advantages that the filter material has good permeability, can well absorb and remove annonia, nitrite, hydrogen sulfide, heavy metal and other harmful substances decomposed from water and effectively inhibit the excessive multiplication and growth of algological organisms, and has good absorption effect on tangible impurities to achieve the effects of cleaning water, stabilizing pH value of water and softening water, thereby being the best choice for biological filtration.

The invention discloses an artificial fish reef with waste mytilus shells as a body. The artificial fish reef comprises a frame structure formed by welding triangle steel, the top end of the frame structure is open, a base formed by a cement board is fixed at the bottom end of the frame structure, and each side face of the frame structure is laid with a slice-shaped component coincident with the side face in shape and size; the slice-shaped components are prepared by extruding meshes and the waste mytilus shells with which the meshes are filled, and young oysters are attached to the surfaces of the slice-shaped components. According to the artificial fish reef with the waste mytilus shells as the body, the artificial fish reef is prepared with a large quantity of waste mytilus shells, a preparing method is simple, convenient and easy to achieve, and compared with a traditional artificial fish reef, the emission reduction effect of the artificial fish reef is good; the artificial fish reef serves as an important facility of a marine ranch, and has the advantages that eco-environmental friendliness is achieved, the structure is stable, and hold time is long.

The invention provides mesenchymal stem cell injection liquid and a preparation method, which aim to solve the problem of how to use a mesenchymal stem cell to efficiently repair and improve damaged skin and fundamentally delay and stop skin cell aging. The injection liquid provided by the invention is prepared from the mesenchymal stem cell, DMSO, EGF, glutathione, vitamin C, human serum albumin,a ginkgo biloba extract and a menstruum. The mesenchymal stem cell is obtained through carrying out hungry culture on P2 to P5-generation mesenchymal stem cells and stimulating through an epidermal growth factor. The obtained mesenchymal stem cell has a good differentiative capacity and a good proliferation capacity, has a better differentiation potential, and is synergized with the DMSO, the EGF, the glutathione, the vitamin C, the human serum albumin and the ginkgo biloba extract, so that skin wrinkles and hyperpigmentation can be remarkably reduced.

The invention discloses a neutral toilet cleaner. The neutral toilet cleaner is prepared from the following components in percentage by weight: 0.5-30 percent of a surfactant, 0.1-5 percent of a thickener, 0.05-10 percent of a chelating additive, 2-20 percent of a solvent, 0.03-0.2 percent of a preservative, 0-1 percent of essence, 0-0.1 percent of a pigment, 0-1 percent of a pH regulator, 0-0.1 percent of a preservative and the balance of water. The toilet cleaner is a neutral product, is strong in decontamination ability and is capable of very lightly and conveniently removing fouling including soap scales and urine scales.

The invention discloses a modified wood chip adsorbent, and a preparation method and an application of the modified wood chip adsorbent in treating wastewater containing basic dye. The preparation method of the modified wood chip adsorbent comprises the following steps: reacting wood chips with organic acid, drying, subsequently performing an esterification reaction, removing organic acid, and drying to obtain the modified wood chip adsorbent, wherein the organic acid is one or more of oxalic acid, citric acid or tartaric acid. The modified wood chip adsorbent has the characteristics that the materials are simple and easy to obtain, the adsorption quantity is large, the removal rate is high, and the like, and the modified wood chip adsorbent can be applied to treatment on wastewater, especially treatment on alkali dye wastewater; the used raw materials are cheap and easy to obtain, a preparation process is simple, free of pollution, low in cost and easy to industrialize, and the purpose of waste recycling is achieved.