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134 results about "Uniform system" patented technology
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Speech recognition and transcription among users having heterogeneous protocols
InactiveUS7558730B2Easy to recognizeEasy to transcribeData processing applicationsMultiple digital computer combinationsUniform systemEngineering
Owner:ADVANCED VOICE RECOGNITION SYST
Capsulectomy device and method therefore
InactiveUS6165190AEasy to useCost-effective in manufacture and operation and maintenanceEye surgerySurgeryHand heldEngineering
A surgical instrument for ophthalmic surgery, allowing the user to form a uniform circular incision of the anterior lens capsule of an eyeball, as part of an anterior capsulotomy. The capsulectomy device of the preferred embodiment of the present invention has first and second ends, with a rotor emanating from one end, the rotor having a cutting blade or bin situated at the distal end of the rotor, the rotor rotating in pivotal fashion up to 360 degrees, while simultaneously reciprocating the cutting blade at a consistent stroke so as to provide optimal incision edge and depth of the anterior lens capsule of the eyeball. The device is hand held and relatively compact, having provided therein a motor and gear reduction / transmission system for driving the rotor and providing the reciprocating action to the cutting blade or pin. The device further includes a power supply, which is illustrated as a separate component fed to the device via wire, as well as controls for initiating power, as well as varying the speed of the motor. Unlike the prior art systems, which generally have relied upon the skill of the surgeon to perform the radial incision by hand, the present system provides a relatively easy and uniform system for performing the radial incision which is believed to be safer, more uniform, and less time consuming than prior techniques.
Owner:NGUYEN NHAN
Non-uniform system load balance method and apparatus for updating threshold of tasks according to estimated load fluctuation
InactiveUS6026425AMinimize response timeGuaranteed effective useResource allocationMultiple digital computer combinationsUniform systemRing network
A load balancing method and apparatus are provided, by which loads in a wide range of the entire system can be balanced with a small overhead with respect to load balancing processing, and the mean response time of the entire system can be shortened. The method has the steps of (i) estimating a load of the present node based on the number of tasks being or waiting to be processed and determining an estimated load value of the node; (ii) accepting a task passing through a logical ring network, and every time a task is accepted, comparing the estimated load value and a threshold value which is set with respect to the number of tasks existing in the node so as to limit the load of the node; and (iii) judging, based on a result of the comparison, whether the accepted task is handed over to a task processing unit, or is transmitted to the logical ring network again without handing over the task to the task processing unit. The threshold value may be changed in accordance with a change of the number of tasks passing through the logical ring network during a fixed period, or when a round trip task is detected.
Owner:NIPPON TELEGRAPH & TELEPHONE CORP
Speech recognition and transcription among users having heterogeneous protocols
InactiveUS20090271194A1Easy to recognizeEasy to transcribeData processing applicationsMultiple digital computer combinationsUniform systemSpeech identification
A system is disclosed for facilitating speech recognition and transcription among users employing incompatible protocols for generating, transcribing, and exchanging speech. The system includes a system transaction manager that receives a speech information request from at least one of the users. The speech information request includes formatted spoken text generated using a first protocol. The system also includes a speech recognition and transcription engine, which communicates with the system transaction manager. The speech recognition and transcription engine receives the speech information request from the system transaction manager and generates a transcribed response, which includes a formatted transcription of the formatted speech. The system transmits the response to the system transaction manager, which routes the response to one or more of the users. The latter users employ a second protocol to handle the response, which may be the same as or different than the first protocol. The system transaction manager utilizes a uniform system protocol for handling the speech information request and the response.
Owner:ADVANCED VOICE RECOGNITION SYST
Uniform system for verifying and tracking the title of articles or objects of value
A uniform, centralized system for converting all existing systems into one unique, universal system which allows for tracking those titles for articles objects of value, such as motor vehicles, boats, land, antiques insurance files, etc., in a congruent and continual manner. The system provides a centralized computer data base(s) operating in a “client-server” computer environment for use in creating a title history file, and for assigning a singular registration number and identification number from the VIN (or other) identifying number with those numbers being coded, and creating a coded title and registration number and for storing relevant data on the item. The centralized data base is connected to various authorized agents such as insurance agents and car dealers, and to governmental agents such as department of motor vehicles and tax collecting entities. In this way, all relevant data on an item can now be is maintained on a centralized system which is accessible to all who need the information.
Owner:UNITRAC
Multi-dimensional intelligent service point virtual desktop method and infrastructure
InactiveCN102638475AStrict logicImprove controllabilityTransmissionExecution for user interfacesTransmission protocolUniform system
The invention discloses a multi-dimensional intelligent service point virtual desktop infrastructure. A transverse dimension consists of client equipment, an access point, a service switch point and a background service point so as to form a transmission path of a virtual desktop; and a longitudinal dimension consists of a company operating system, company application, user application, user data and settings so as to divide a virtual machine into a plurality of layers which are easy to manage. The entire infrastructure is managed through the access point, the service switch point and the background service point, and the centralized management of a background virtual machine / virtual application program / real machine and the delivery on demand of the virtual desktop can be realized. The background service point incorporates virtual machine management and real machine management into a uniform system, integrates the virtual machine management and the virtual application management and divides the virtual machine and the virtual application program and data on the virtual machine into a plurality of mutually independent layers. The transmission of the virtual desktop provides end-to-end network overlay by adopting a session initial protocol (SIP) and a remote transmission protocol.
Owner:TRANSOFT SHANGHAI
Instant recoverable slippery water for shale gas reservoir
ActiveCN102516975AHas instantMeet the needs of large-scale development and online formulationDrilling compositionPhosphatePotassium
The invention relates to instant recoverable slippery water for a shale gas reservoir. The slippery water consists of the following components in percentage by weight: 0.02-0.1 percent of a friction-reducing agent, 0.2-2.0 percent of potassium chloride, 0.1-0.5 percent of a cleanup additive, 0.1-0.5 percent of an anti-swelling agent and the balance of water, wherein the friction-reducing agent is polyacrylamide or a polyacrylamide derivative of which the molecular weight is 5*105-1*106; the cleanup additive consists of 0.5-2.0 percent by mass of a fluorocarbon surfactant, 10-15.0 percent by mass of a low molecular alcohol solvent, 3.0-5.0 percent by mass of a high molecular alcohol additive, 10.0-20.0 percent by mass of a technical grade hydrocarbon chain surfactant and the balance of water; and the anti-swelling agent is a cation polyquaternary salt, poly-quaternary phosphate or a poly-quaternary sulfate. The slippery water can be fully dissolved and swelled within 20-30 seconds for forming a uniform system without oxidizing a gel breaker, damage to the crack diversion capability can be reduced, a cracking reverse discharge liquid can be recycled, and waste liquid treatment cost is lowered.
Owner:PETROCHINA CO LTD
Reusable slippery water fracturing fluid for shale oil and gas reservoir
ActiveCN103275691ALow viscosityRapid Dispersion DissolutionDrilling compositionUniform systemWater quality
The invention discloses reusable slippery water fracturing fluid for a shale oil and gas reservoir. The reusable slippery water fracturing fluid for the shale oil and gas reservoir comprises the following components in percentage by weight: 0.02 to 0.08 percent of a resistance reducing agent, 0.7 to 1.5 percent of a discharge aid, 8 to 12 percent of an auxiliary discharge aid, 5 to 10 percent of an interfacial tension-reducing synergist, 0.05 to 0.1 percent of a clay stabilizer, 0.007 to 0.01 percent of a sterilizing agent, 0.04 to 0.06 percent of a scale inhibitor and the balance of water. The reusable slippery water fracturing fluid for the shale oil and gas reservoir has the beneficial effects that (1) the resistance reducing agent can be dispersed and dissolved quickly to form a uniform system, so the problem of difficulty in large-scale intermediate liquid preparation in a shale fracturing process is solved; (2) the slippery water fracturing fluid can be reused, so the treatment cost of return liquid is reduced; (3) the resistance reducing ratio of the slippery water is more than 75 percent, so large-displacement construction is realized, the requirement on pump injecting equipment is reduced, and the frictional resistance of the slippery water in a pipeline in a large-displacement fracturing construction process can be effectively reduced; and (4) the slippery water fracturing fluid has a wide application range, strong temperature adaptability and temperature adaptability, and low requirement on water quality.
Owner:PETRO KING OILFIELD TECH
Graphene conductive coating and preparation method thereof
InactiveCN104449377AGood dispersionLow viscosityNatural resin coatingsElectrically-conductive paintsDispersityFiltration
The invention relates to a graphene conductive coating and a preparation method thereof. The graphene conductive coating comprises the following components in parts by weight: 0.01-10 parts of graphene, 1-30 parts of an alcohol-soluble coating, 20-50 parts of a diluent, 0.5-5 parts of a dispersing agent, 0.5-5 parts of a stabilizer and 0.1-1 part of a defoaming agent. The preparation method comprises the following steps: by taking the graphene as a conductive component and taking the alcohol-soluble coating as a film forming matter, adding other aids, grinding, performing ultrasonic oscillation, and performing film filtration, thereby obtaining a conductive coating in a uniform system. The alcohol diluent has an effect of diluting the coating, dispersion of the graphene is promoted, the dispersity of the graphene is effectively improved, and the graphene can stably exist for a long time. The types and amount of the diluent, dispersing agent and other aids are adjusted, so that the viscosity of the coating is controlled, the subsequent spraying, brushing and coating process is conveniently implemented, large-scale production is easily realized, and the graphene conductive coating is expected to be applied to the fields such as mobile phones, flat-panel displays, solar cells, transparent electromagnetic wave shielding and automotive window heat-conducting glass.
Owner:HUBEI UNIV OF TECH
Speech recognition and transcription among users having heterogeneous protocols
InactiveUS20070250317A1Easy to recognizeEasy to transcribeData processing applicationsMultiple digital computer combinationsUniform systemSpeech sound
A system is disclosed for facilitating speech recognition and transcription among users employing incompatible protocols for generating, transcribing, and exchanging speech. The system includes a system transaction manager that receives a speech information request from at least one of the users. The speech information request includes formatted spoken text generated using a first protocol. The system also includes a speech recognition and transcription engine, which communicates with the system transaction manager. The speech recognition and transcription engine receives the speech information request from the system transaction manager and generates a transcribed response, which includes a formatted transcription of the formatted speech. The system transmits the response to the system transaction manager, which routes the response to one or more of the users. The latter users employ a second protocol to handle the response, which may be the same as or different than the first protocol. The system transaction manager utilizes a uniform system protocol for handling the speech information request and the response.
Owner:ADVANCED VOICE RECOGNITION SYST
High-density polyethylene resin composition for microporous membrane and preparation method of high-density polyethylene resin composition
The invention provides a high-density polyethylene resin composition for a microporous membrane. The composition comprises the following components by weight percent: 17% to 50% of polyethylene powder, 0.1% to 1% of antioxidant and 50% to 83% of diluent. The high-density polyethylene resin composition for the microporous membrane is suitable for industrial production and is a uniform system which can be dissolved and mixed well. The composition is especially suitable for serving as a polyethylene composition material for the microporous membrane of a lithium ion battery in a wet process.
Owner:CHINA PETROLEUM & CHEM CORP +1
Grain delivering and warehousing access control system and method
ActiveCN103559746AReduce management costsReduce economic lossIndividual entry/exit registersVideo monitoringUniform system
The invention discloses a grain delivering and warehousing access control system and method. The system comprises an access control platform, a management terminal which is connected with the access control platform, a system server, an IC card (Intelligent Circuit Card) sender and receiver, as well as an identity card recognizer, a fingerprint recognizer, a face recognizer, a voice column, an LED (Light-Emitting Diode) display screen, a number plate recognition device and a gateway which are connected with the management terminal, a handheld terminal machine which is connected with the access control platform through a wireless AP (Adapter), and a plurality of cameras which are connected with the access control platform through a hard disk video recorder. The system is a uniform system which is integrated with functions of customer registration, video monitoring, vehicle entering or exiting promotion, number plate recognition, blacklist management, temporary number plate distribution and gateway control. The system is capable of uniformly managing customer information and metering data; meanwhile, the goal of improving the efficiency, avoiding the cheating, standardizing a process and optimizing the management can be achieved.
Owner:JINAN JINZHONG ELECTRONICS SCALE +1
Light-diffusing flame-retardant polycarbonate material for LED lighting, and preparation method thereof
The present invention discloses a light-diffusing flame-retardant polycarbonate material for LED lighting, wherein the light-diffusing flame-retardant polycarbonate material comprises (by weight) the following raw materials. According to the present invention, the organic light diffusing agent is added to the composite substrate, such that the light is soft, the stability is good, the particles are tightly bound, and the uniform system is easily formed; through the matched cooperation of the organic light diffusing agent and the fluorescent brightener, the light transmittance can be improved, and the light diffusion effect can be improved; and the product has the good gloss, the interface combination degree of the matrix resin is enhanced with the compatibilizer, the impact strength is increased, the product has the toughness, and the flame retardant property is provided for the product through the flame retardant agent.
Owner:NINGBO ZHETIE DAPHOON CHEM
Control method of distributed grid-connected photovoltaic power generation devices and energy storage devices
ActiveCN103178541AImprove economyFlexible configurationSingle network parallel feeding arrangementsEnergy storageCommunications systemUniform system
The invention discloses a control method of distributed grid-connected photovoltaic power generation devices and energy storage devices. A plurality of clients are connected with an electric energy monitor through a distributed network, each client comprises the photovoltaic power generation device and the energy storage device. The control method includes: by the electrical energy monitor, building communication with each client to form a distributed communication system, and setting uniform system time; selecting a day mode or a night mode according to the system time; in the day mode, by the energy storage devices, compensating generated power of the photovoltaic power generation devices according to on and off states of the photovoltaic power generation devices and energy storage states of the energy storage devices; and in the night mode, charging the energy storage devices according to the energy storage states of the energy storage devices and electricity price periods.
Owner:SEARI ELECTRIC TECH
Aqueous boron nitride coating capable of binding at low temperature and being used at high temperature
ActiveCN109021628AGood adhesionImprove stabilityCoatingsEnvironmental resistanceHexagonal boron nitride
The invention discloses an aqueous boron nitride coating capable of binding at a low temperature and being used at a high temperature. The coating is prepared from 15-60 wt% of hexagonal boron nitride, 2-15 wt% of a composite high temperature binder, 1 wt% of carboxymethyl cellulose, 0.5 wt% of a thickener, 1 wt% of cobalt aluminate, 0.2 wt% of isooctanol, and the balance is demineralized water. Apreparation method of the coating comprises the following steps: mixing and stirring carboxymethyl cellulose used as a dispersant, the high-temperature binder, the thickener, cobalt aluminate used asa high-temperature pigment and demineralized water at a normal temperature to form a uniform solution, adding the hexagonal boron nitride and isooctanol used as a defoamer to the solution, and performing stirring until a uniform system is formed. The coating adopts an aqueous system, has no harmful substance volatilization during use, is clean and environmentally friendly, has good adhesion, anddoes not crack or spall in order to effectively block direct contact between a metal melt and the surface of a refractory material. Additionally, the coating has excellent stability and suspension capacity, and the stability and the suspension capacity do not change under high dilution.
Owner:SHANGQIU NORMAL UNIVERSITY
Preparation method of DHA lipid nano-particles
ActiveCN101385714AThe preparation process is easy to controlImprove stabilityOrganic active ingredientsMetabolism disorderLipid formationUniform system
The invention discloses a preparation method of DHA lipid nanoparticles, the preparation method comprises the following steps: step one: an emulsifying agent and lipid material are respectively weighed, the emulsifying agent and the lipid material are heated to the set temperature after the mixing, a liquid oil phase is obtained after the melting; step two: DHA is weighed, the DHA is added in the liquid oil phase, a uniform system is obtained by stirring; step three: water with the temperature which is the same with the set temperature T is added in the system, then the system enters a high pressure homogenizer which is preheated to the set temperature T and at the set pressure of 80MPa after the even mixing and stirring; step four: the obtained high temperature micro-emulsion is cooled to the room temperature, and aqueous dispersion of DHA-NLC is obtained; the preparation method adopts the lipid nanoparticles to load DHA, thereby protecting the DHA from being oxidized and covering up the stinking smell of DHA oil; furthermore, the prepared DHA aqueous dispersion can be conveniently added in foods, thereby expanding the using range thereof.
Owner:PROYA COSMETICS
Method for preparing gradient directional porous cement based on two-phase pore former system freezing molding technology
InactiveCN106892674AAvoid defects such as pattern collapse and cracking caused by high temperature sinteringSimple processCeramicwareMaterials preparationPore distribution
The invention discloses a method for preparing a gradient directional porous cement based on a two-phase pore former system freeze molding technology, and belongs to the technical field of porous material preparation methods. Cement powder is stirred and mixed with a mixed solution based on a two-phase pore former system to form a uniform system, and a gradient directional porous cement material is obtained through freeze forming, freeze drying and maintenance in sequence; the porous material structurally comprises directional macropores and interior mesopores, the pore size distribution is 3 nm to 400 microns, the porosity is 40% to 65%, and the porous material has the characteristics of uniform pore distribution, various open-framework structures and excellent directional degree. According to the method, the pore passage morphology of the prepared gradient directional porous cement is regulated and controlled by changing the proportion of tert butyl alcohol to water, so that different application requirements are met; moreover, the preparation technology is simple and convenient, relatively low in cost and simple and mild in maintenance conditions, the problem of style collapse cracking caused by a traditional high-temperature sintering method is avoided, and the method is more energy-saving and environmentally-friendly.
Owner:OCEAN UNIV OF CHINA
Method and device for implementation of self-organization cluster server supporting load balancing
ActiveCN105635199AWith redundant backup capabilityImprove reliabilityTransmissionSystems managementUniform system
A self-organization cluster server provided by the invention employs a distributed configuration, and a plurality of physics servers form a virtual server which is used for operate large-scale business difficult for a signal server to bear. The cluster server automatically discovers addition and departure of neighbor nodes through a self-organization mode, and dynamically votes management access points and business access points, a uniform system management interface is provided by the management access points for a network management system, a uniform business access interface is provided by the business access points for a user, and business is uniformly distributed each active physical nodes, so that the load balancing and redundancy backup in the cluster server are realized, the problems are solved that a traditional cluster server needs to deploys a special load balancing device, heartbeat software and the like, the device investment of a system is reduced, the reliability and the scalability of the system are improved, and the complexity of deployment and maintenance of the system is reduced.
Owner:睿哲科技股份有限公司
Coordinate conversion method based on multi-dimensional dynamic etalon
ActiveCN110487182AAccurate adjustment positionHigh precisionUsing optical meansUniform systemDimension measurement
The invention discloses a coordinate conversion method based on a multi-dimensional dynamic etalon and belongs to the field of precise measurement. The method comprises steps that firstly, a large-size measurement field is constructed by utilizing a multi-dimensional dynamic etalon provided with an ERS point target ball and a laser tracker; secondly, the position of ERS points is adjusted by utilizing the etalon, laser trackers are utilized for measurement, and reading of the etalons is performed after each adjustment; and lastly, a coordinate system of the multi-dimensional dynamic etalon istaken as a global coordinate system, a translation matrix and a rotation matrix for registering coordinates of the laser trackers to the global coordinate system are calculated, and the coordinates ofthe laser trackers are registered to the global coordinate system. The method can effectively reduce a non-uniform system error of traditional fixed public ERS point transfer registration, greatly inhibits influence of the non-uniform system error in the measurement length direction of the laser trackers, has advantages of high precision and high reliability and has better practicability in the application of the precision measurement technology.
Owner:DALIAN UNIV OF TECH
Projection type light-uniforming system for touch screen
InactiveCN102207661AEven projectionReduce volumeProjectorsInput/output processes for data processingCamera lensOptical Module
The invention discloses a projection type light-uniforming system for a touch screen, which comprises at least one infrared light source, at least one light guiding device, at least one optical module, at least one visible light source and at least one projection lens. The at least one infrared light source emits at least one infrared light; the at least one light guiding device is coupled to the infrared light source so as to guide the infrared light to the at least one optical module; the at least one optical module is connected with at least one imaging device, and the optical module receives the infrared light guided by the light guiding device and refracts the infrared light to the imaging device so as to form an infrared light image; the at least one visible light source is used for emitting at least one visible light, and the visible light is transmitted to the optical module and refracted to the imaging device to form a visible light image; and the at least one projection lens is used for receiving and refracting the visible light image and the infrared light image. The projection type light-uniforming system for the touch screen is a device which induces the infrared light source into a projector, in which the light can be uniformly projected on a projection screen by a projector system to thereby provide a uniform infrared light source for an optical touch system to use.
Owner:NLIGHTEN TRADING SHANGHAI
Preparation method of organic bentonite for oil based drilling fluid
The invention belongs to the technical field of petrochemical engineering, and relates to a preparation method of organic bentonite for oil based drilling fluid. The method is as folows: 55-75 parts of a sodium bentonite dry material is dissolved in 600-900 parts of deionized water for formation of a suspension system a; 20-35 parts of a quaternary ammonium modifying agent is mixed and dissolved in 100-300 parts of a solvent to form a uniform system b; 10-15 parts of an organic additive is dissolved in 100-150 parts of a solvent to form a uniform system c; the solution b is added into the suspension system a to react for 1-2 hours at 70 to 90 DEG C to form a uniform system d; then the solution c is added into the suspension system d to react for 1-2 hours at 70 to 90 DEG C; a product is cooled to room temperature, excess ions in the product are washed away, the product is filtered, finally, the solid product is dried at 60 to 80 DEG C under the vacuum environment, crushed and sieved to obtain the product. The method can greatly improve the performance of the organic bentonite, and the prepared excellent quality organic bentonite for the drilling fluid is conducive to the improvement of drilling fluid rheology, anti filtration performance and cuttings carrying capacity.
Owner:CHINA PETROLEUM & CHEM CORP +1
Preparation method for chalcogenide semiconductor/carboxylation PPV (polyphenylene vinylene) electroluminescence composite material
InactiveCN102617831AEvenly dispersedEasy to passSolid-state devicesSemiconductor/solid-state device manufacturingSemiconductor materialsLuminescence
Owner:HEFEI UNIV OF TECH
System and method for optically imaging objects on a detection device by a pinhole aperture
InactiveUS7635834B2Simple and cost-efficientUniform brightness distributionBeam/ray focussing/reflecting arrangementsSolid-state devicesUltrasound attenuationSuperimposition
Owner:ROCHE DIAGNOSTICS OPERATIONS INC
Method and device for determining phase angle compensation quantity, inverter and paralleled UPS system
ActiveCN104467159AImprove flow uniformityDc-ac conversion without reversalEmergency power supply arrangementsPower inverterActive component
The embodiment of the invention provides a method and device for determining the phase angle compensation quantity, an inverter and a paralleled uninterrupted power supply (UPS) system. The problems that when a load carried with a UPS system with a slave in the existing method changes, the phase angle compensation quantity cannot be adjusted in time, and the current balance degree of the paralleled UPS system can be probably poor are solved. The method comprises the steps that the parallel operation ring current of the slave at the current moment is determined according to the difference of the output current of the inverter of the slave, for tracking a system output voltage, in the paralleled UPS system at the current moment and the uniform system current at the current moment; the phase angle compensation quantity of the inverter in the slave in a lock phase of the current moment is determined according to the active component and / or the reactive component in the parallel operation ring current of the slave at the current moment.
Owner:EMERSON NETWORK POWER CO LTD
High-deformation type water absorption resin plugging agent material preparation method
InactiveCN109628078AGood elastic stressFill in the gapsDrilling compositionCross-linkMechanical property
The invention relates to a high-deformation type water absorption resin plugging agent material preparation method, and belongs to the technical field of plugging materials. According to the present invention, chitosan and montmorillonite are compounded to form a first network with cross-link density, the first network is modified to form a network structure with a porous structure, and a water absorption gel system prepared from acrylic acid, acrylamide and the like is introduced in the network; the chemically cross-linked gel has the characteristic of non-uniform system, such that the gel has good elastic stress so as to achieve excellent elastic deformation property; through the interpenetrating structure between the gel and the resin, the gaps of the first network are filled, such thatthe strain is increased, the chain link movement of the first cross-linked network is limited, and the gel and the resin can relatively slide and move during the being pressed so as to effectively disperse the acting force; and through the force unloading dispersing, by effectively improving the mechanical strength of the material, the plugging material has excellent mechanical property and excellent elastic deformation strength so as to effectively improve the use range.
Owner:郭跃
Preparation method for chitosan/hydroxyapatite composite hydrogel
InactiveCN103480038AClosely arrangedImprove mechanical propertiesProsthesisLithium hydroxideHydrolysis
The invention discloses a preparation method for chitosan / hydroxyapatite composite hydrogel. The preparation method comprises the following steps of taking chitosan, lithium hydroxide, sodium hydroxide, urea, hydroxyapatite and water in percentage by weight; mixing the components aforementioned and then swelling, freezing, unfreezing, filtering, centrifuging and defoaming to obtain a chitosan / hydroxyapatite mixed solution; and injecting the chitosan / hydroxyapatite mixed solution in a die, then soaking in a coagulation bath, and performing coagulation and precipitation to generate the chitosan / hydroxyapatite composite hydrogel. According to the preparation method disclosed by the invention, chitosan is dissolved by a basic solvent system, thus avoiding the adverse effects of molecular weight reduction, wider distribution and the like brought by acid-catalyzed hydrolysis in the acid chitosan solution, and ensuring the existence of the macromolecular chains of chitosan in a highly-swelling state and the closer arrangement of the macromolecular chains of chitosan. In this way, hydroxyapatite is dispersed in the solution in a nanometre state, and a mesh-shaped structure formed by chitosan is used as a template to form a uniform system, thus improving the mechanical property of the chitosan / hydroxyapatite composite hydrogel.
Owner:ZHEJIANG UNIV
Method for preparing oriented porous silicon nitride ceramics based on gelatin solution freeze-drying technology
Owner:西安晶科立芯半导体设备有限公司
Access authorization and right of use system, of a motor vehicle
InactiveUS7248143B2Cost-effectiveCost-effectivelyElectric signal transmission systemsDigital data processing detailsMobile vehicleSystem requirements
The system has a uniform system architecture that is designed for an access authorization request both with and without the use of a transponder. Should a transponder be used, only a corresponding transponder must be fitted in the key that can interact with an immobilizer coil specially provided for this in a receiving unit of the motor vehicle. In this case, the corresponding system requirements have also already been taken into consideration in the system architecture. As a result, the different system requirements for access and right of use systems to a great extent provide flexibility.
Owner:SIEMENS AG
Preparation method of negative ion antibacterial adsorption material composition
The invention provides a preparation method of a negative ion antibacterial adsorption material composition. The method is characterized in that (a) 13X molecular sieve raw powder accounting for 60 to75 percent of the total mass of the composition, alkali metal oxides accounting for 10 to 20 percent of the total mass of the composition, tourmaline powder accounting for 10 to 20 percent of the total mass of the composition, and the balance of bonding agents and hole expansion agents are proportionally mixed to form mixed powder of a uniform system; (b) the mixed powder is soaked into a water solution of AgNO3, then, ultrasonic concussion is performed to form suspension; next, a NaOH solution is added for regulating pH to 10; a mixed solution is formed. (c) the mixed solution is sealed andheated under the hydrothermal condition; after the separation, sintering is performed at high temperature; crushing is performed to obtain the composition. Compared with the prior art, the preparationmethod provided by the invention has the advantages that the cost is low; for indoor pollution gas, the adsorption capability is realized; the decomposition and desorption prevention performance is also realized; a certain number of negative ions can also be released; the adsorption effect is promoted; beneficial effects are achieved on the human body.
Owner:慕林健康负氧离子医用建材(深圳)集团有限公司
Acrylic resin emulsion for fingerprint-resistant paint and preparation method thereof
InactiveCN102002125AGood ionic stabilityNo demulsificationAntifouling/underwater paintsPaints with biocidesMethacrylateAcrylic resin
The invention discloses an acrylic resin emulsion for fingerprint-resistant paint and a preparation method thereof. The acrylic resin emulsion for fingerprint-resistant pain is polymerized from the following components in parts by weight:35-40 parts of methyl methacrylate, 5-10 parts of methyl acrylate, 30-35 parts of ethyl methacrylate, 10-15 parts of acrylic acid, 0.1-0.2 part of initiator, 2-4parts of emulsifying agent, 8-12 parts of cosolvent and 150-200 parts of deionized water. The acrylic resin emulsion has the advantages of uniform system, uniform viscosity and favorable ionic stability, and can satisfy the requirement of quick curing without degrading the film-forming properties of the resin. When the fingerprint-resistant paint prepared from the acrylic resin emulsion is coatedon the surface of a galvanized steel sheet, fingerprints can not be attached to the surface, and the paint is environment-friendly.
Owner:江苏巨珩新材料科技有限公司
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