183results about How to "Easy to store and transport" patented technology

The invention relates to the field of aluminum alloy surface treatment, in particular relates to an environmentally-friendly corrosion-resistant chromium-free chemical conversion liquid and an application thereof in an environmentally-friendly corrosion-resistant chromium-free chemical conversion film with aluminum alloy coating adhesion for ships, and solves the problems of incapability of meeting the requirements on corrosion resistance and coating adhesion in the current environmentally-friendly chemical conversion treating process. The prepared chemical conversion film has excellent corrosion resistance and coating adhesion, is convenient in construction and can be used for substituting for a traditional chromium-containing chemical conversion and phosphate treatment process. The environmentally-friendly corrosion-resistant chromium-free chemical conversion liquid mainly comprises the components of silane, corrosion inhibition components and a solvent. The chromium-free chemical conversion film construction modes comprise dipping, roller painting and spraying, and the curing modes comprise natural curing and heating curing. The environmentally-friendly corrosion-resistant chromium-free chemical conversion film in the invention has excellent corrosion resistance and coating adhesion, can be used for substituting for a traditional chromium-containing chemical conversion and phosphate treatment process, and is applicable to aluminum alloys for ships such as 5xxx and 6xxx series aluminum alloys.

A graphical user interface interception. Its characteristics is that the use of the graphical user interface of the target window attribute information, as well as graphics window of the target window to redraw the necessary mapping function name and the corresponding action graphics data generation that The graphical user interface of the target window graphics composite graphics data; window described in graphic attribute information contained window size and window attribute; action described in graphics data mapping function parameters logo, for the completion of the mapping function of the corresponding graphics operation data. The invention through the window into the mapping function library mapping function interceptors, and through the window to intercept and record the movements generated graphics graphical user interface includes vector and vector or bitmap data of graphics data. In accordance with the invention generating graphical user interface graphics information and data in small, easy storage and transmission, and is faster.

The invention relates to an application of exosome secreted by human umbilical cord mesenchymal stem cells to treating skin injury and in particular relates to a medicinal action of vesica structure exosome which is secreted by human umbilical cord mesenchymal stem cells and has the diameter of about 100nm in the promotion of skin injury repair, belonging to the technical field of skin injury treatment. The exosome disclosed by the invention comes from the human umbilical cord mesenchymal stem cells. The test proves that the disclosed exosome serving as an important component secreted by the human umbilical cord mesenchymal stem cells has an obvious medicinal action in promoting repair in the aspects of skin injuries including burns and scalds and injury removal, and has the advantage of convenience in storage and transportation. Therefore, the exosome from the umbilical cord mesenchymal stem cells provides possibility for non-cell skin injury by taking the mesenchymal stem cells as the basis.

A medical support pillow comprising of a pair of oppositely positioned sidewalls, a bottom portion having a bottom surface, and an upper portion. The support pillow includes a head support and neck support, which are dimensioned to automatically align the airways to facilitate CPR when head and neck are positioned thereupon. The upper portion has two opposing inclined surfaces. The first inclined surface for receiving and supporting the individual's neck, the second oppositely positioned inclined surface for supporting the individual's head. In a further embodiment, the medical support pillow has a circular indentation, which curves inwardly on the upper portion which hold and support and individual's neck to prevent substantial movement of the individual's head. In a further embodiment, the medical support pillow includes a hollowed out section on both right and left side of base creating handles making the medical support pillow easy to carry and transport.

The invention discloses a preparation method for artificial seeds of dendrobium candidum. The method comprises: inducing dendrobium candidum stems in a culture medium so as to obtain protocorms, which are then subjected to proliferation culture, and transferring the protocorms into an MS culture solution with 0.5mg/L of ABA (abscisic acid) for shaking culture, changing the culture solution every 10d, after 30d, selecting a protocorm as an embedding propagule, making artificial seeds by an instillation method, taking the MS culture medium, 4mg/L of 6-BA, 0.4mg/L of NAA, 2% of sodium alginate and 0.2% of carbendazim to prepare basic artificial endosperm, adding 2% of chitosan and 5.0-10% of nanometer TiO2 into sodium alginate so as to form an artificial seed coat matrix, and carrying out research on germination and storage of artificial seeds. The preparation method of the invention can enhance seed germination rate and make the seeds convenient for storage and transportation. Adding of a special material into artificial endosperm or an artificial seed coat in the invention can promote germination of the artificial seeds or prolong storage of the artificial seeds.

The invention relates to a Batroxobin freeze-dried powder preparation and a preparation method thereof. The Batroxobin freeze-dried powder preparation comprises Batroxobin and freeze-dried protecting agent and excipient which are pharmaceutically acceptable. The ratio of Batroxobin to freeze-dried protecting agent is 10BU:0.01-10mg, and the ratio of Batroxobin to excipient is 10BU:2-200mg. The Batroxobin freeze-dried powder preparation is characterized by simple preparation process, adaptability to scale production, high stability and long-term storage and can be used for intravenous injection due to adding no preservative simultaneously, thus expanding the clinical application range.

The invention discloses a urea-solution-based SCR (selective catalytic reduction) flue gas denitration process and device. According the process, pyrolysis air is pumped from the outside or a second air channel of a boiler, then is pressurized by a first fan and heated to 350-700 DEG C by a pyrolysis air heater arranged in a boiler hearth or a tail air channel, and the heated pyrolysis air enters a pyrolysis reaction air channel together with fresh air; urea solution is sprayed into the pyrolysis air channel by an atomizing spray gun and the atomized urea solution is pyrolyzed into ammonia gas in the pyrolysis air channel; and after being discharged out of the pyrolysis air channel, the ammonia gas is sprayed into boil flue gas via ammonia spraying grilles to participate in the SCR reaction in an SCR reactor arranged in a tail flue of the boiler. the urea-solution-based SCR flue gas denitration process and device have the advantages of high safety, simple structure and easiness in implementation.

The invention discloses a method for recovering rhenium from arsenic sulfide pressurization leach liquor, and relates to recovery of rhenium from a rhenium-containing solution, and in particular relates to enriching of rhenium from arsenic sulfide pressurization leach liquor. The method is characterized by comprising the following steps: (1) performing oxygenation and pressurization on an arsenic filter cake for leaching; and (2) reducing leach liquor by using sulfur dioxide to produce arsenic trioxide, extracting rhenium in the solution by using arsenic precipitation mother liquor, and performing multi-stage reverse extraction and evaporative crystallization to produce ammonium rhenate. According to the method, an ammonium rhenate product is obtained finally by adopting a technology consisting of oxidative pressure leaching, SO2 reduction and extraction. In the entire process, the process flow is simple, the recovery rate of rhenium is high, the price of a rhenium extracting agent is low, secondary waste of valuable metal resources is avoided, and good economic benefit can be created for enterprises.

The invention discloses a processing method for a black tea fungus solid beverage. The processing method sequentially comprises the following steps: (1) preparing tea soup; (2) inoculating; (3) fermenting; (4) centrifuging; (5) sterilizing; (6) spraying and drying, namely adding a maltodextrin drying aid into concentrated liquid and uniformly mixing; and then drying by using a spraying dryer under the condition that an air inlet temperature is controlled at 150-180 DEG C, an air outlet temperature is controlled at 70-90 DEG C, and the water content is 5-7% after spraying and drying, thus preparing black tea fungus dried powder; and (7) blending and putting into bags, namely mixing and blending following materials into mixed powder I in percentage by weight: 1%-3% of instant black tea powder, 2%-3% of citric acid, 0.15%-0.45% of sodium citrate, 90%-96% of white granulated sugar powder; uniformly mixing the mixed powder I and the black tea fungus dried powder according to the ratio of (15%-50%) to (85%-50%) to obtain mixed powder II; and putting the powder into the bags. The sterilization treatment guarantees the stability of product properties and the product obtained by concentration and drying procedures is convenient to store and transport.

The invention provides a polymeric chemical blocking remover which is prepared from the following raw materials in parts by mass: 1.5-5 parts of a solid oxidizing agent, 0.5-2.5 parts of a catalyst, 0-1 part of a strippant, 0-1 part of a penetrating agent, 0-1 part of a ferric ion stabilizer and 2-5 parts of a corrosion inhibitor, wherein the solid oxidizing agent is urea peroxide; the catalyst is formic acid, acetic acid, citric acid, hydrochloric acid, oxalic acid, sulfamic acid and various substituents, Na2CO3, NaOH, sodium sulfite, sodium hydrogen sulfite, formaldehyde or thiourea; the strippant is urea, PEG-400 or ethanol amine; the penetrating agent is a nonionic surfactant; the nonionic surfactant is fatty alcohol-polyoxyethylene ether; the ferric ion stabilizer is citric acid, acetic acid, nitrilotriacetic acid or ethylene diamine tetra acetic acid; and the corrosion inhibitor is formaldehyde, acetaldehyde, benzaldehyde, butanedial or glutaraldehyde.

The invention discloses a portable water battery element and a water battery device comprising the same. The portable water battery element is composed of a carbonized cloth forming the anode, an anode extraction electrode electrically connected with the carbonized cloth, a salt-containing cloth tightly connected with the carbonized cloth, a piece of water-absorbing paper tightly connected with the salt-containing cloth, a cathode metal piece closely connected with the water-absorbing paper and forming the cathode, a cathode extraction electrode electrically connected with the cathode metal piece, and thermal contraction pipes pressing the carbonized cloth, anode extraction electrode, salt-containing cloth, water-absorbing paper, cathode metal piece and cathode extraction electrode. The water battery element and the water battery device comprising the same can be preserved for a long time and are convenient for storage and transportation; the water battery device can quickly supply power only by injecting water or other electrolytic driving liquid or other neutral liquid, and the voltage and current characteristics at initial and long-term usage are very good. In addition, the invention has the advantages of simple production process, low manufacturing cost, wide application and no pollution to the environment.

The invention provides enrofloxacin soluble powder and a preparation method and application thereof, and can solve the problem of poor sterilizing effect due to lower solubility of enrofloxacin in water in the prior art. A technical scheme is that: the enrofloxacin soluble powder is a mixture of enrofloxacin and solid inorganic alkali or organic alkali according to a weight ratio of (1-10):1. The invention also provides a preparation method and application of the enrofloxacin soluble powder. The invention solves the problem of low solubility of the enrofloxacin in the water, and overcomes the defect of poor curative effect due to low enrofloxacin concentration caused by taking the medicine with water.

The invention discloses a norovirus RNA fragment-containing pseudoviral particle and a preparation method thereof. The pseudoviral particle is a spherical RNA-protein complex which is prepared by coating a norovirus RNA with an MS2 bacteriophage coat protein. The pseudoviral particle is prepared by the following steps: designing and manually synthesizing a primer and obtaining a target gene MS2 by a by PCR (polymerase chain reaction) method; connecting the target gene MS2 to a plasmid pET-28b(+) to obtain a recombinant plasmid pET-28b/MS2; connecting the recombinant plasmid pET-28b/MS2 with a NV fragment to obtain a recombinant plasmid pET-28b/MS2/NV; guiding the obtained recombinant plasmid pET-28b/MS2/NV into escherichia coli for prokaryotic expression; and precipitating a virus-like particle by a polyethylene glycol method, wherein the obtained virus-like particle is the norovirus RNA fragment-containing pseudoviral particle. The pseudoviral particle can be used as a standard product and a quality control product for RT-PCR detection, is non-infectious, safe, reliable, and good in stability, and has an RNase-resistant characteristic.

The invention provides a filter membrane conveying system which comprises a mounting plate, a first rotating wheel, a second rotating wheel, a drawing wheel, a feed wheel, a filter membrane, a sampling device and a detector, wherein the first rotating wheel, the second rotating wheel, the drawing wheel and the feed wheel are arranged on the mounting plate; both ends of the filter membrane are respectively wound on the drawing wheel and the feed wheel, and the filter membrane is connected with the drawing wheel, the first rotating wheel, the second rotating wheel and the feed wheel in sequence; the sampling device can come into contact with the surface of the filter membrane and is used for depositing sampling airflow on the filter membrane; and the detector is used for detecting the content of metallic substances and the dust quality in the filter membrane. According to the filter membrane conveying system provided by the invention, the movement direction of the filter membrane is changed by controlling the rotating direction and speed of the drawing wheel, the feed wheel, the first rotating wheel and the second rotating wheel, only the smooth rotation of all of the wheels needs to be guaranteed in the process of operation, and a translation sliding track is not used. Compared with the prior art, the requirement of the processing accuracy of a structure is reduced by the filter membrane conveying system provided by the invention, components can be conveniently transported and stored, and the logistics cost is reduced.

The invention discloses a fluorescence conjugated polyelectrolytes and a preparation technology thereof, in particular to a fluorescence conjugated polyelectrolytes with an amphoteric side chain and a preparation method thereof, which is applied to the field of fluorescent chemical sensing materials. The structure of the fluorescence conjugated polyelectrolytes with the amphoteric side chain contains an OCnH2n+1 oleophylic side chain and an ionic type oleophylic side chain simultaneously, wherein the ionic type oleophylic side chain contains ammonium salt or sulphonate. The fluorescence conjugated polyelectrolytes with the amphoteric side chain is prepared by comprising the following steps: mixing oil-soluble monomers and water-soluble monomers in molar ratio of 1-1.12:1, adding catalyst tetrakis-(triphenylphosphine)-palladium and cuprous iodide, and carrying out coupling reaction, wherein the ratio of the catalyst tetrakis-(triphenylphosphine)-palladium to the oil-soluble monomers is 1:0.0.5-0.08, and the ratio of the cuprous iodide to the oil-soluble monomers is 1:0.05-0.08. The substance has different fluorescence luminous performance in the mixed solvent of the water and organic solvent in different proportion and has sensing response for a specific substance, thereby serving as a high-sensitive sensing system in the mixed solvent of the water and the organic solvent and having an application prospect.

The invention relates to an auxiliary support device which is used for an electric tool. The electric tool comprises a main working platform and a working head, wherein the main working platform is provided with a main working platform surface; and the working head is arranged on the main working platform and extends from the lower part of the main working platform to the main working platform tobe used for processing a workpiece. The auxiliary support device comprises an auxiliary working platform and a support structure, wherein the auxiliary working platform is provided with an auxiliary working platform surface; and the support structure supports the auxiliary working platform to enable the auxiliary working platform surface to be parallel to the main working platform surface. When not in use, the auxiliary working platform can be folded into smaller packaging volume. Thus, the packaging volume of the whole auxiliary support device can be greatly reduced so as to be convenient for the storage or transport of the auxiliary support device. The auxiliary working platform can support the workpiece together with the main working platform in a working state to increase the support surface of the support workpiece; and when not in use, the invention can be easily folded and is quite convenient and practical.

An adjustable, collapsible garment hanging device, consisting of a body, a crossbar and two hanging arms. The arms may be telescopically extended to allow for hanging larger or multiple garments. The crossbar has a plurality of hooks for additional garment hanging. Further, the center body of the hanging device is equipped with a cedar ball for garment freshness and an upper and lower hook for hanging the assembly.

The invention discloses a manufacturing method of an environment friendly flame retardant medium density fiber board. The manufacturing method relates to the technology field of chemical engineering, and comprises the following manufacturing steps of debarking and chipping wood, and sieving to obtain qualified wood chips; boiling at high temperature and high pressure, and separating fiber to obtain qualified fiber; applying adhesive, dye and curing agent; drying, winnowing, and applying powder flame retardant for spreading forming; finally, pressing to obtain rough boards through a pressing machine, cooling, sanding and saw cutting to obtain qualified production boards. The manufacturing method of the environment friendly flame retardant medium density fiber board provided by the invention can solve the problems that the usage amount of the flame retardant is large and the production cost is high during the flame retardant medium density fiber board manufacturing process.

The invention relates to a method for producing a thickening agent for carbamido lubricating grease. The proposal comprises the following steps: sweeping a dissolving tank and a reactor used in the method by using nitrogen gas; adding a solvent to an ester dissolving tank metrically, then adding isocyanate to the ester dissolving tank metrically, and stirring, heating and dissolving the isocyanate; adding the solvent to an amine dissolving tank metrically, then adding an organic amine to the anime dissolving tank metrically, and stirring, heating and dissolving the organic amine; adding the amine solution and the isocyanate solution to a reactor, mixing and heating the solutions to finish the mixing within 0.5 to 2 hours, and continuing to perform balanced reaction and dispersion for 0.5 to 2 hours at a temperature of between 50 and 100 DEG C; vacuumizing the reactor, and condensing the reactor to reclaim the solvent; and introducing overheated water vapor to the reactor from the bottom thereof for 5 to 30 minutes, and cooling the temperature to below 80 DEG C to obtain the carbamido thickening agent. The method provides a nontoxic, harmless, environment-friendly and safe intermediate raw material which is convenient to transport and store for the production of carbamido lubricating oil, reduces the threshold and the cost for the production of the carbamido lubricating grease, and provides a material foundation for stabilizing and improving the quality of the caramido lubricating grease, and upgrading the import of the lubricating grease varieties.

The invention discloses a novel strain Y-3 of bacillus amyloliquefaciens and a preparation method and use method of a bacillus amyloliquefaciens Y-3 biological fresh-keeping agent. The preparation method comprises S1, separating bacillus amyloliquefaciens Y-3, S2, activating antagonistic bacteria, S3, inoculating NB fermentation broth with the antagonistic bacteria and carrying out fermentation until the stress-resistant spore rate of 90% or more, S4, crushing bentonite until fineness of less than or equal to 44 microns and carrying out high temperature and high pressure sterilization, and S5,mixing the NB fermentation broth cultured by the bacillus amyloliquefaciens Y-3, bentonite, PEG8000, a detergent and sodium carboxymethylcellulose, carrying out freeze drying, and carrying out crushing until fineness of less than or equal to 44 microns so that biological fresh-keeping wettable powder is obtained. In use, the bacillus amyloliquefaciens Y-3 biological fresh-keeping agent is dilutedwith water and then is applied to picked tomatoes by spraying or soaking. The bacillus amyloliquefaciens Y-3 biological fresh-keeping agent is easy to use and can be conveniently transported transregionally and stored.

A lining system providing means of establishing visual demarcation lines for sports or other uses such as being played or other use to be used as demarcations for such things as base lines, foul lines, mid-field, goal boxes, penalty boxes, goal lines, yardage markers, parking spaces and other demarcations for playing fields or courts for sports such as baseball, softball, kickball, badminton, volleyball, bocce, croquet, football, flag football, flickerball, soccer, rugby, field hockey, ultimate frisbee, lacrosse or temporary parking lots. The preferred embodiment of the invention consists of a thin woven polymer-based material or film that is positioned where appropriate on the ground or floor. The polymer-based material is not adversely affected by moisture or sunlight making it suitable for outdoor use and is woven for added strength and durability. The material is of adequate width to be easily viewable, typically 1 inch to 4 inches, and comes on a roll or a reel for easy transportation and storage. A more permanent installation is for users that intend on leaving the material in place indefinitely in a semi-permanent installation. Either desired embodiment can be used to make lines and line segments to mark demarcation elements such as sidelines, goal lines, penalty boxes, yard markers, parking spaces or other elements desired by the user.

The invention relates to a preparation method for nano-copper with oxidation resistance and dispersibility. The nano-copper is a key material for conductive nano-metal ink. The preparation method comprises the steps of: dissolving or dispersing copper salt or oxide of copper into distilled water, and ultrasonically dispersing and preprocessing, so as to obtain the nano-copper under hydrosolvent; and carrying out the surface treatment on the nano-copper through a passivator, so that the nano-copper is excellent in oxidation resistance. According to the preparation method, the nano-copper is prepared at lower temperature ranged from 25 to 90 DEG C; the prepared nano-copper has the particle size of 20 to 100nm; a nano-copper particle prepared by using the preparation method is excellent in oxidization resistance and monodispersity, and is easily dispersed into an organic solvent; the nano-copper is expected to be applied to the fields such as the RFID (Radio Frequency Identification Devices) field, the printing electronic circuit filed, and the electromagnetic wave shielding field; by virtue of the preparation method, the shortcomings of the conventional manufacture method that a plurality of processes are carried out and the efficiency is low can be avoided, no waste liquid is generated, and the environment is less affected; and the preparation method for the nano-copper is very important for the reformation of the production of an electronic circuit.

The invention discloses a supporting structure for a foundation pit for a building. According to the technical scheme, the supporting structure comprises a soil nailing wall at the periphery of the foundation pit, and comprises a plurality of supporting folding plates which are mutually connected; the supporting folding plates comprise a plurality of central plate bodies and connecting plate bodies, wherein the central plate bodies are the same in shape and are mutually connected, and the connecting plates are connected to the two sides in the horizontal direction of all the central plate bodies and are the same in length; rotating shafts are connected to the long edges of the two sides of each central plate body in a rotating mode; all the central plate bodies and the connecting plate bodies are mutually connected in a rotating mode through the rotating shafts; a plurality of connecting holes are formed in each connecting plate body; the connecting plate bodies of every two adjacent supporting folding plates are attached to one another; prestress anchor rods are connected into the positions, at the connecting holes, of the connecting plate bodies in an inserted mode; vertical plates are fixedly arranged on all non-adjacent rotating shafts; and when the central plate bodies are arranged perpendicular to the ground, the connecting plate bodies and the vertical plates are also arranged perpendicular to the ground. The supporting structure has the advantages that complex construction is not needed, and the supporting effect can be achieved quickly.

The invention relates to a packaging box and a packaging method and aims at solving the problem that all of links including production, circulation, usage, waste disposal and the like are not systematically considered in the existing packaging design. The packaging box comprises a bottom box and a folding box body composed of a folding structure covering an upper opening of the bottom box, wherein the folding structure is formed by folding an upper quadrangular barrel formed by upward extending upper edges of four walls of the bottom box. The front wall and the back wall of the upper quadrangular barrel are folded oppositely to form an upper opening seal band with certain width, and the left wall and the right wall of the upper quadrangular barrel forms a left side lug and a right side lug of a triangle respectively, and the left side lug and the right side lug are oppositely folded inward. The problems including convenience of circular usage of the packaging links, the stability of the packaging box, integrality of packaging decoration and the like are comprehensively considered while the main purpose of improving the space utilization rate is achieved, the facilitating of production is achieved, the space utilization rate is high, and meanwhile the purpose of bringing convenience to consumers during carrying and usage is achieved.

The invention provides a quick test dipstick used for testing a specific antigen of Campylobacter jejuni, which comprises a reaction membrane and a binder release liner. The reaction membrane is provided with a testing strap coated with a monoclonal antibody mentioned in Claim 1 or a PEB1 polyclonal antibody and a quality control strap coated with anti-IgG; the binder release liner is coated with a PEB1 monoclonal antibody which is marked by colloidal gold and the binding site of which is linked with different antigen on the reaction membrane. A membrane chromatography double antibody sandwich method is applied to detecting the specific antigen of the Campylobacter jejuni in a specimen. The dipstick is applied to test, which has simple, convenient, quick and concise operation and does not require special equipment and facilities as well as professional training. Furthermore, the dipstick has clear and easy-identity results, simple operation and easy popularization, is applicable to matrixes, field tests of emergency on a large scale and the study of epidemiology and can aid in the infection diagnostics of the Campylobacter jejuni.

The invention discloses a storage box with a movable handle. The storage box is in a structure with a larger upper opening and a smaller lower opening; the upper opening is slightly larger than the lower opening so as to satisfy that two storage boxes can be overlapped with each other; movable turnover handles are arranged on both sides of the storage box; the handles can be turned over and placed above the upper opening of the storage box; the middle part of the handle is provided with a recessed portion; grooves are opened on both sides of the bottom of the storage box; and the grooves are matched with the recessed portions of the handles turned over at the upper opening of the storage box when the two storage boxes are piled mutually. After the handles are put down, a plurality of storage boxes can be overlapped, so that the space is saved so as to facilitate storage and transportation; after the handles are turned over, the grooves are stably combined with the handles, so that goods inside the storage box cannot be pressed by the storage box above; and the storage box is safe and reliable, and can be used for piling up and transporting goods.

The invention provides a method for rapidly processing municipal food wastes. The method comprises the following steps: 1, collecting food wastes in a city in a large scale manner, recovering them, and sorting them; 2, crushing the unifiedly recovered food wastes into a fine slurry; 3, extracting the fine slurry with an underflow pump, rapidly carrying out high temperature steam disinfection drying, and rapidly bagging generated nontoxic dry food waste powder; 4, conveying the nontoxic dry food waste powder which is bagged and can be preserved to rural areas, and carrying out biological synergistic fermentation manure rotting on the dry food waste powder together with agricultural wastes of bagasse, banana sticks, peanut shells and the like; and 5, using the fully fermented material obtained in step 4 as a high quality farm manure or a fertilizer for culturing economic animals. The method which has the advantages of simple processing procedure and low cost is a convenient and practical method for processing the municipal food wastes.

The invention is applicable to the field of pet supplies and provides beancurd cat litter as well as a preparation method and application thereof. The beancurd cat litter is prepared from the following components: beancurd residues, starch, water, an essence and guar gum. By adopting a puffing process to prepare the beancurd cat litter, fragrance of the essence component in the beancurd cat littercan be ensured not to be released, the beancurd cat litter is full of the water after the beancurd cat litter is used, and the fragrance can be released, so that the deodorization purpose is achieved. In addition, compared with bentonite cat litter, the beancurd cat litter has the advantages of ultra-fast water absorption, non bottom sticking, good caking without loosening, more water absorption,high dosage, good deodorization and the like, can well absorb urine and odor, is almost free of dust in use and can be dissolved into water, so that when pet faeces are cleaned, the dirty beancurd cat litter and the feces can be directly mixed together and then are flushed into a toilet bowl.

The invention discloses a linear polyphosphazene compound and a preparation method and application thereof. The linear polyphosphazene compound disclosed by the invention is high in stability and easyto store and transport, does not contain heavy metal elements and is environmentally friendly. Meanwhile, the linear polyphosphazene compound disclosed by the invention is simple in synthetic route,easy in raw material obtaining and low in cost, can be used for ring opening polymerization of various cyclic monomers, and is high in catalytic activity and applicable to popularization and application.

The invention relates to a gastrodin medicine, and a composition and a use thereof, and also relates to a gastrodin derivative, and a preparation method and a use thereof. The gastrodin derivative has good storage stability, and is suitable for preparing medicines for increasing the cerebral blood flow, alleviating the cerebral vasospasm, calming, sleeping, easing pains, and treating or preventing Alzheimer's syndrome.