121results about How to "Control swelling" patented technology

The present invention is for an oral osmotic controlled drug delivery system for a sparingly soluble drug comprising:a. a core comprising (i) finely particulate anhydrous carbamazepine (ii) a polymeric swelling agent consisting of one or more swellable hydrophilic polymers selected such that the polymeric swelling agent exhibits controlled swelling and the wall does not rupture or burst, (iii) a crystal habit modifier in whose presence, upon contact with an aqueous medium, the anhydrous carbamazepine being transformed into cuboidal or rod-shaped crystals of the dihydrate of carbamazepine, or mixtures thereof, and (iv) water-soluble compounds for inducing osmosis,b. a wall made of acylated cellulose which is impermeable to the components of the core, but permeable to water, andc. a passageway through the wall for releasing the components present in the core to the surrounding environment.

The present invention provides a method and composition for loading one or more drugs in a solution onto one or more ion exchange resin particles to form a drug-loaded resin particle. The drug-loaded resin particle is separated from the solution and dried before recombining the drug-loaded resin particle with the solution to load more drugs onto the drug-loaded resin particle from the solution.

The present invention provides an improved inflatable compression dressing (10) for use in controlling swelling and promoting healing to wounds subsequent to surgery while allowing visual inspection of the wound during healing. The dressing comprises a bladder (138) formed by an outer wall (114) secured to an inner wall (112) to define an elongated, cup-shaped cavity for receiving an appendage (136); an air supply delivering air to the bladder; and a sensor monitoring air pressure within the bladder and indicating said air pressure to an air pressure control (140). The air pressure control provides air to the bladder at a rate which substantially matches air leaked from the bladder. Thus, the air supply inflates the bladder so as to provide uniform air pressure to the appendage, wherein the appendage is an arm or a leg.

The invention provides an electrolyte of a li-ion secondary battery and a li-ion secondary battery which is provided with the electrolyte. The electrolyte comprises non-aqueous solvent and electrolyte which is mixed lithium salt; wherein, the mixed lithium salt comprises lithium salt A, lithium salt B and lithium salt C; the lithium salt A is LiBOB; the lithium salt B is LiCF3SO3 and / or Li (CF3SO2)2N; the lithium salt C is one or more than one chosen out of LiPF6, LiBF4, LiCIO4, LiAsF6 and lithium halide. By adopting the electrolyte and the battery provided by the invention, the high-temperature storage performance, the high-temperature circulation performance, discharging performance in different ratios and safety performance are all obviously improved.

The invention discloses an organic functional porous isolating membrane, a preparation method and a lithium ion battery, and aims to the solve the problem that a function of a coating layer is influenced caused by different binding effects when the surfaces of two coating layers of the same specification of an isolating membrane are laminated and glued with positive and negative plates of different physical properties of a battery. According to the main points of the technical scheme, the organic functional porous isolating membrane comprises a porous base material and organic functional coating layers attached to two surfaces of the porous base material; and each organic functional coating layer comprises organic functional polymer polyvinylidene fluoride, an aqueous polymer thickening agent, and an aqueous polymer binder. According to the different characteristics of the positive and negative electrode materials of the lithium ion battery corresponding to the two surfaces of the porous base material, the organic functional polymer polyvinylidene fluoride with different copolymerization degrees and fusing temperatures can be selected on the surfaces of the isolating membranes of the corresponding positive and negative electrodes, so that the safety performance and the long-term cycling stability of the battery can be improved.

The invention discloses a method for showing an actual object in a shared enhanced actual scene in a multi-azimuth way. The method for showing the actual object in the shared enhanced actual scene in the multi-azimuth way comprises the following steps of: according to characteristics of vertex distribution of a scene area, and according to the coverage area of video sequences to the scene and the number of required apparatuses, optimizing setting ways of multiple video sequences; determining an observation area of each video sequence; matching and determining a shared area between the video sequences according to a characteristic that a standard marker and the dimensions of the video sequences in different azimuths are unchanged; computing a spatial position relationship of all video sequences; finishing false or true registering of each video sequence by using the standard marker; integrating the local descriptions of the video sequences on the actual object, and estimating a three-dimensional convex hull of the actual object according to a computer vision principle; for an entering new cooperative user, giving a rapid registering method according to the spatial position relationship of all video sequences; and drawing a two-dimensional mapping effect of the actual object in the video sequence in each azimuth. The application cost of the method provided by the invention is low, and by the method, a rapid response can be made to the entering new cooperative user.

A polymer is obtained from (meth)acrylate having a bridged ring lactone group, (meth)acrylate having an acid-labile leaving group, and (meth)acrylate having a hydroxynaphthyl pendant. A positive resist composition comprising the polymer as a base resin, when exposed to high-energy radiation and developed, exhibits a high sensitivity, a high resolution, and a minimal line edge roughness due to controlled swell during development, and leaves minimal residues following development.

The invention relates to a hollow fiber anion exchange membrane and a preparation method thereof, and is characterized in that bromide polyphenylether is dissolved in organic solvent to obtain spinning solution the polymer mass concentration of which is 20 to 60 percent; then a dry-jet wet spinning is adopted for molding to obtain a bromide polyphenylether hollow fiber inophragma, wherein, the methyl bromide degree is 60 to 120 percent, and the benzene ring bromide degree is 0 to 20 percent; then the inophragma is pretreated and aminated to obtain the hollow fiber anion exchange membrane, wherein, the anion exchange capacity is 1.5 to 2.5mmol / g-dry membrane, and the water capacity is 50 percent to 90 percent. The preparation method has the advantages of simpleness, convenience, rapidity and economy, and obtains a homogeneous phase hollow fiber anion exchange membrane with different exchange capacity and stable performance through the control on the bromide polyphenylether structure, the spinning conditions, etc.; the hollow fiber anion exchange membrane has the characteristics of uniform structure, high ion exchange capacity, and strong pollution resistibility, and can be series-developed to meet the needs of different application fields.

The invention discloses a preparation method of an inorganic-organic functional polytetrafluoroethylene microporous membrane, and in particular relates to the preparation method of the inorganic-organic functional polytetrafluoroethylene microporous membrane by in-situ synthesis of inorganic nanoparticles. The microporous membrane has flexibility, weather resistance and good adhesion characteristics of acrylate polymers, retains excellent chemical stability, corrosion resistance, oxidation resistance and other surface characteristics of fluoropolymers; the prepared inorganic nanoparticles are smaller in particle size and uniform in dispersion and free of particle agglomeration; control on the particle size and particle distribution of the method can be greatly improved; by adding of functional molecules, new application such as use as photocatalytic antibacterial materials, air filter materials or protective masks is given to the microporous membrane; on the other hand, by introducing of inorganic components in an organic matrix in a manner of an inorganic-organic hybrid membrane, the mechanical properties of the membrane can be enhanced, the thermal stability of the membrane can be improved, the pore structure and distribution of the membrane can be improved and modified, the solvent resistance of the membrane can be improved, and the separation properties of the membrane can be improved.

The invention provides a high and low temperature general polysiloxane phosphonate doped SPEEK proton exchange membrane and a preparation method of the proton exchange membrane. The proton exchange membrane is prepared by performing cross-linking in an SPEEK matrix to form polysiloxane phosphonate doped SPEEK collosol after a ring-opening reaction of organic phosphonic acid and siloxane, and performing ageing, drying and heat treatment on the collosol. According to the proton exchange membrane, protons are conducted by proton conduction units with different ingredients at different temperatures and humidity, so that the membrane can exert good proton conductivity at the medium and low temperature and the high temperature and low humidity, and even under an anhydrous condition. The prepared membrane has good mechanical property and thermochemistry stability and effectively reduces methanol transmittance at the same time.

The invention discloses a method for controlling the defect of sintering expansion of powder metallurgy material and products thereof and a mold. In the sintering process of powder body, three-dimensional restraint compressive stress is applied to the body, thus generating restraint action to the body, restraining volume expansion generated by physical or chemical reactions of the body in the sintering process, realizing restraint sintering, controlling sintering densification thereof and eliminating the defects of sintering expansion. A restraint mold (1) is internally provided with an external mold; the matching conicity between the restraint mold (1) and the external mold is Theta which is larger than 5 degrees and smaller than 15 degrees; the external mold is internally provided with an internal mold; and a spacer (6) which is used for preventing the reaction of the body and the mold is arranged between the internal mold and the sintering body. The invention is a restraint sintering method which can effectively prevent the powder metallurgy material and products thereof from generating expansion, deformation, cracking and pore / hole and the like and can improve the sintering density and quality; and the using method of the mold is simple and easy to operate.

The invention provides a thrust bearing and a lubricating device thereof. The thrust bearing comprises a shaft washer, a housing washer and a rolling body between the shaft washer and the housing washer, and is characterized in that an oil pumping device is arranged on the outer side of the shaft washer. The lubricating device of the thrust bearing comprises a shaft, a radial bearing and a bearing pedestal, and is characterized in that the bearing pedestal is provided with an oil inlet in one side of the bearing and is provided with an oil outlet in the other side of the bearing; the oil inlet and the oil outlet are respectively connected with an oil tube; one end of an oil inlet tube is connected with a cooling device, one end of an oil outlet tube is connected with a magnetic filter, and the cooling device is communicated with the magnetic filter. Therefore, lubricating oil can be continuously supplied to the bearing through the oil pumping device, the temperature of the lubricating oil can be controlled within a certain range through the cooling device, and the lubricating oil passing through a coiled pipe in a water tank is filtered through the magnetic filter, is cooled and then returns inside the bearing pedestal, so that the high temperature of the bearing rotating at high speed can be effectively reduced, the lubricating oil is cleaned through the magnetic filler, the friction force of the bearing is reduced, and the service life of the bearing is prolonged.

The present invention relates to a recording medium, in particular an ink-jet recording medium of photographic quality that has excellent ink absorption speed, good drying characteristics and a good image printing quality. According to the present invention, an ink-jet recording medium is provided, comprising a support and an ink-receiving layer which has an asymmetric membrane structure comprising a dense top layer adjacent to a microporous sublayer, said ink-receiving layer comprising at least one water-swellable polymer. The present invention is further directed to methods for obtaining such a medium.

The present invention relates to a process for preparing regenerated collagen fiber which comprises treating regenerated collagen fiber with a monofunctional epoxy compound and a metal aluminum salt, in which treatment with the monofunctional epoxy compound initiated by adding sodium hydroxide to become 0.001 to 0.8 N based on the treatment solution and inorganic salt in an amount so that water absorption of the obtained regenerated collagen fiber becomes at most 100%, depending on amount of sodium hydroxide added. Also, the present invention relates to a process for setting regenerated collagen fiber obtained by the above process which comprises thermally setting the fiber by means of wet heat treatment at 50° to 160° C. and drying treatment at 20° to 220° C.

The invention relates to a silicon-oxygen composite negative electrode material, a preparation method thereof and a lithium ion battery, the silicon-oxygen composite negative electrode material comprises a silicon-oxygen material and a composite coating layer coating the surface of the silicon-oxygen material, the composite coating layer comprises a carbon material and a lithium-containing compound, the carbon material has pores, and the pores are filled with the lithium-containing compound. The silicon-oxygen composite negative electrode material and the preparation method thereof are simple and low in cost, industrial production is easy to realize, the prepared silicon-oxygen composite negative electrode material has excellent electrochemical cycle and expansion inhibition performance, and the service life of a lithium ion battery can be prolonged.

The invention discloses a modularization miniature weight-losing capsule robot based on wireless power supply and communication and provides novel weight-losing treatment equipment which conducts wireless type energy supply by using a resonance principle and removes power source equipment to reduce the size of capsules, conducts expansion and shrinkage by wireless communication control equipment, and has modularization design. The modularization miniature weight-losing capsule robot solves the problems that the guiding process and the aerating process of traditional stomach inside balloon weight-losing equipment greatly damage a patient, the size of existing ingested treatment equipment without auxiliary guiding is difficult to reduce due to power supply demands of a power source, and repeated use of a whole machine is low. Compared with a similar product, the modularization miniature weight-losing capsule robot is small in size, can be normally taken or drained, is low in patient damage and pain, has treatment effectiveness and economy, and is outstanding in feature. The modularization miniature weight-losing capsule robot provides a novel scheme for non-invasive obesity treatment, provides a solution for sufficient energy supply of miniature internal medical equipment and small size contradictory, and simultaneously modularization design saves treatment cost and creates conditions for product commercialization.

The invention discloses an integral upward flow water treatment device. The device comprises an inclined tube precipitating zone, a filtering zone and a water outlet zone, wherein the inclined tube precipitating zone is arranged under the filtering zone, the water outlet zone is arranged on the filtering zone, a precipitate discharge zone is arranged under the inclined tube precipitating zone, a device water inlet tube is arranged in the precipitate discharge zone, and the water outlet end of the device water inlet tube corresponds with the inclined tube water inlet end of the inclined tube precipitating zone; a filtering material is arranged in the filtering zone; a filtering water distribution zone is arranged between the inclined tube precipitating zone and the filtering zone, and a cleaning and backwashing water inlet tube is arranged in the filtering water distribution water distribution zone; and the water outlet zone is provided with a water outlet tube. In the invention, the filter water distribution zone is arranged between the inclined precipitating zone and the filtering zone, so an inclined tube precipitating and upward flow filtering combined backwashing technology is formed, thereby the good treatment effect of a filter tank is realized, and abuses of traditional inclined tube precipitating technologies are made up.

The present invention relates to a polymer obtained from the polymerization of: (i) at least one monomer of formula (I) (CH2═CR1)CO—K (I) wherein: K represents 0-Z or NH—Z, Z representing (CR2R3)m—CH3, (CH2—CH2—O)m—H, (CH2—CH2—O)m—CH3, (CH2)m—NR4R5 with m representing an integer from 1 to 30; R1, R2, R3, R4 and R5 independently represent H or a C1-C6 alkyl; and (ii) at least one bio-resorbable block copolymer cross-linker.

The invention relates to a magnetic fluorescent coding microsphere and a preparation method thereof. Firstly, during magnetic particle synthesis, medium-chain and short-chain fatty acids are used formodifying the surfaces of magnetic nanoparticles, so that the polarity of the surfaces of the magnetic nanoparticles is increased, the magnetic nanoparticles can be uniformly dispersed in a good solvent, and the particle size is more uniform; then, a two-step swelling method is adopted, which comprises the following steps: firstly, enabling magnetic nanoparticles to enter swelled polymer microspheres; enabling the fluorescent dye to enter the swollen polymer microspheres to form a 'magnetic particle core-fluorescent shell layer' structure, and reducing quenching and shielding effects of the magnetic particles on fluorescence to the greatest extent; then, by utilizing the swelling fading effect of the microspheres in a poor solvent, sealing cracks generated on the surfaces of the microspheres due to the swelling effect, avoiding leakage of magnetic nanoparticles and fluorescent dyes, greatly simplifying the sealing process, and obtaining the magnetic fluorescent coding microspheres withgood microsphere particle uniformity, good magnetic performance and good fluorescent performance.

The invention discloses a biochemical sludge swelling control system and a control method thereof, and belongs to the technical field of biological sewage treatment. The system disclosed by the invention comprises a water inlet, a secondary sedimentation tank and a water outlet, wherein the bottom end outlet of the secondary sedimentation tank is connected with a sludge return pipeline; a sludge return pump, a clipper and an H2O2 dosing pipe are sequentially mounted on the sludge return pipeline according to the flow direction of sludge in the sludge return pipeline; the sludge return pipeline and the water inlet are connected to the water inlet end of an elutriation pool; a Ca(ClO)2 dosing pipe and a first aerating branch pipe are arranged in the elutriation pool, the water outlet end of the elutriation pool is connected with an aerobiotic pool, and a second aerating branch pipe is arranged in the aerobiotic pool; the secondary sedimentation tank is connected with the aerobiotic pool through a pipeline, and a water outlet is formed in the secondary sedimentation tank. Through technological improvement, the system and method disclosed by the invention sort out and solve the problem of sludge settleability in a targeted manner, so that sludge swelling can be effectively controlled in a short term.

The invention relates to a wastewater biochemical treatment activated sludge conditioner and a preparation method thereof. The wastewater biochemical treatment activated sludge conditioner is prepared from the following raw materials: molasses, a nitrogen source, ammonium sulphate, magnesium sulfate heptahydrate, saccharomycete fluid, glucanase, protease, poly-ferric aluminium sulphate and water. The preparation method of the wastewater biochemical treatment activated sludge conditioner comprises the following steps: firstly fermenting by utilizing the nutrient substances, culturing saccharomycetes in the saccharomycete fluid, then digesting by virtue of the glucanase and protease, and adding poly-ferric aluminium sulphate, so that the wastewater biochemical treatment activated sludge conditioner is obtained. The prepared wastewater biochemical treatment activated sludge conditioner has the advantages that proliferation of microorganisms in activated sludge can be quickly stimulated, and activated sludge treatment efficiency is improved; an impacted or filamentously expanded biochemical system can restore 7-15 earlier if the conditioner is used, effluent parameters are obviously better than those of a biochemical system without the conditioner, and usage amount of the conditioner is low, cost is low, and microorganism growth can be obviously promoted.

According to the present invention there is provided a carrier formulation adapted to operatively support a preservative or preservative mixture within a material for treating wood, said carrier formulation comprising water and one or more water-miscible, water-soluble or water-emulsifiable compounds wherein said carrier formulation provides for preservative penetration and substantial preservative retention within the treated wood; and wherein the treated wood requires relatively little post-treatment drying. The carrier formulation provides for substantially complete or envelope penetration of the preservative within the treated wood.

A process for the preparation of amorphous aluminum phosphate or polyphosphate-based pigment by reacting aluminum phosphate and sodium aluminate is provided. The amorphous aluminum phosphate or polyphosphate is characterized by a skeletal density of less than 2.50 grams per cubic centimeter and a phosphorus to aluminum mole ratio of greater than 1. In one embodiment, the composition is useful in paints as a substitute for titanium dioxide.

A control flow conversion method includes converting a 'course' in COBOL program to be a Java category; setting ' entry function ''and its content in Java category; numbering section name of COBOL program; processing COBOL course body structure, PERFORM statement and GOTO statement. In course of converting heritage code to modern language, the method utilizes switch and while statements of senior language to eliminate both GOTO and PERFORM complex control structure.

The invention provides a method of feeding powdered activated carbon in the specific position for solving the problems occurring in the biochemical treatment process of waste water generated in paper making; and simultaneously, an anoxic pool is arranged for removing nitrates in the water, controlling TN in the discharged water and reducing the sludge bulking probability. The pretreated waste water generated in paper making automatically flows into or is lifted by a water pump to enter an anoxic zone of a high-efficiency biological strengthened treatment pool; the waste water treated in the anoxic zone automatically flows into an aerobic zone; the waste water treated in the aerobic zone automatically flows into a settling zone; and the water treated in the settling zone automatically flows into or is lifted by the water pump to enter subsequent treatment units or is discharged. The reactor enables the biochemical treatment unit of the waste water generated in paper making to have the advantages of stable operation, better quality of the discharged water, reduced operation cost and the like.

A process for treating paper-making sewage includes filtering primary deposition in initial deposition pool, discharging the sludge in mixing tank, flowing sewage in aerating pool, flowing in reflux sludge tank of middle deposition pool, adding bleaching water for killing bacteria, depositing in middle depositing pool and then in final depositing pool, pumping sludge back to sludge concentrating pool, and draining clean water. It has high effect on decreasing COD to 96 mg / L.