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220results about How to "Extended dwell time" patented technology

Production of hSA-linked butyrylcholinesterases in transgenic mammals

The present invention provides methods for the large-scale production of recombinant butyrylcholinesterase fused to human serum albumin in cell culture, and in the milk and / or urine of transgenic mammals. The recombinant butyrylcholinesterase-albumin fusion protein of this invention can be used to treat and / or prevent organophosphate pesticide poisoning, nerve gas poisoning, cocaine intoxication, and succinylcholine-induced apnea.
Owner:PHARMATHENE

Rebound attenuation device for automatic firearms

A blow-back operating automatic firearm has a sliding mass carried with its bolt carrier assembly to increase the dwell time of the bolt at the breech when the bolt is in battery position for firing. The sliding mass reduces the tendency of the bolt to bounce-off the head end of the seated cartridge, thereby reducing the risk that a misfiring will occur.
Owner:GENERAL DYNAMICS ORDNANCE & TACTICAL SYST CANADA VALLEYFIELD INC

Tangential standing vortex burning chamber

The tangential standing vortex burning chamber in annular flame tube structure consists of inner and outer boxes and inner and outer flame tubes separately inside the inner and the outer boxes. The outer flame tube has one circumferential head including oil nozzle and flame stabilizing tube, and one main burning hole in the downstream of the head, and the central line of the head and the main burning hole is in some angle to the circumference tangent. The inner and outer flame tubes have inner and outer mixing holes separately in front of their combustors to ensure the excellent outlet temperature distribution, and inclined cooling holes in the walls and inclined to the main burning holes. The present invention has raised liquid atomizing combustion efficiency, reduced combustor outlet temperature distribution coefficient and expanded stable operation range of combustor.
Owner:BEIHANG UNIV

Multilayer fluidized bed gasification furnace

The invention discloses a multilayer fluidized bed gasification furnace, the fluidized bed gasification furnace comprises a gasification furnace shell, at least two layers of gas distributors, a raw material inlet, a clinker outlet, a gasification agent inlet, a coal gas outlet, a first overflow device and a second overflow device, wherein the gas distributors are perpendicular to a longitudinal axis and arranged at different heights along the longitudinal axis in a perforated plate form to divide the internal space into an upper space, a middle space and a lower space; the clinker outlet and the gasification agent inlet are positioned at the bottom of the shell; the coal gas outlet is positioned on the top of the shell; and the first overflow device and the second overflow device are penetrated into the first gas distributor and the second gas distributor respectively and each of the first overflow device, and the second overflow device is tubular, and has two open ends, so that a raw material flows from the upper space to the middle space through the first overflow device along a curved line and then flows to the lower space from the middle layer through the second overflow device. The shortest distance between the upper end of the first overflow device as well as the second overflow device and the inner wall of the gasification furnace is between 1 / 5 times and 1 / 2 times of the internal diameter of the gasification furnace shell.
Owner:ENN SCI & TECH DEV

Apitoxin liposome preparation and preparation method thereof

The invention relates to the field of medicine preparation, in particular to a melittin lipidosome preparation. The lipidosome preparation is composed of one part of melittin, 5-40 parts of phospholipid, 1.3-10 parts of cholesterin and 10-140 parts of poloxamer. The invention also discloses the preparing method of the melittin lipidosome preparation. The melittin lipidosome preparation not only can delay the medicine release in the lipidosome, prong the circulating time in the blood and improve the bioavailability of the medicine, but also can obviously reduce the side effect of the medicine and improve the adaptability of a patient.
Owner:安徽省百春制药有限公司 +1

Comprehensive utilization method and system for coal

ActiveCN101792680AIncrease contentOvercoming the Difficulty of Single Catalytic GasificationElectrolysis componentsBiofuelsProcess engineeringClean energy
The invention provides a comprehensive utilization method for coal. The coal is transformed into methane and other clean energy chemical products and / or clean power by integrating a multi-region coal gasification sub-method, a coal-based poly-generation sub-method, a composite power source hydrogen production sub-method and / or an algae carbon absorption sub-method, and an ecological cycle mode for development and utilization of coal resources is formed, wherein in the multi-region coal gasification sub-method, methane-containing gas flow is produced in the presence of a catalyst and a gasification agent by putting coal powder into a gasification furnace comprising a partial pyrolysis region, a catalytic gasification region and a residue gasification region. The invention also provides a system for implementing the comprehensive utilization method for coal.
Owner:ENN SCI & TECH DEV

Blowing and refining device and method used for removing tundish molten steel inclusion

The invention discloses a blowing and refining device and method used for removing the tundish molten steel inclusion. The blowing and refining device is characterized by comprising a tundish 1, a blowing device 2 and a dipping cover 3, wherein the tundish comprises a permanent layer and a working layer arranged on the inner surface of the permanent layer; the bottom of the permanent layer is provided with the blowing device; the blowing device comprises an air brick and a ventilating pipe; the air brick comprises a dense layer and a ventilating layer; the middle of the ventilating layer is provided with an air chamber; and the dipping cover is a refractory material cover supported by a steel plate, is connected with an automatic lifting system and is arranged above the blowing device. According to the blowing and refining device, an air curtain retaining wall with a big air flow can be introduced in to form continuous and tight bubble columns, the average residence time of molten steel in the tundish is obviously prolonged, the molten steel flowing behavior is obviously improved, the molten steel can be stirred by a great quantity of tiny bubbles, inclusions with a smaller size can be adsorbed, and meanwhile, steel slag rolling and mixing and the secondary oxidation of the molten steel due to big blowing amount can be avoided.
Owner:UNIV OF SCI & TECH BEIJING

Partial oxidation reactor

A new type of reactor that is intended to carry out partial oxidation reactions starting from liquid feedstocks that can go from GPL to gas oil for the purpose of producing synthesis gas is described. This reactor is characterized by finely controlled hydrodynamics and a high degree of thermal integration.
Owner:INST FR DU PETROLE

Unmanned aerial vehicle emergency rescue high-altitude base station

The invention provides an unmanned aerial vehicle emergency rescue high-altitude base station comprising a bearing platform, a wireless communication system and a backhaul device, wherein the bearing platform is an unmanned aerial vehicle, the wireless communication system and the backhaul device are connected with each other and are loaded on the mooring unmanned aerial vehicle, the wireless communication system comprises a RRU module communication device and an antenna, the RRU module communication device is in wireless connection with a user through the antenna, the backhaul device comprises a BBU module communication device and a backhaul system, The RRU module communication device establishes a data transmission connection with the BBU module communication device, and the BBU module communication device is in data transmission connection with a machine room PTN through the backhaul system. The unmanned aerial vehicle emergency rescue high-altitude base station has the advantages of low cost, simple operation, large bearing capacity, long air residence time and high environmental adaptability. The unmanned aerial vehicle emergency rescue high-altitude base station can quickly rise in hash environments, quickly start a communication station and can perform remote operation. The unmanned aerial vehicle emergency rescue high-altitude base station serves as an emergency communication station to meet different emergency relief scenarios, such as emergency relief, security anti-terrorism, hot spot coverage and other communication needs.
Owner:CHINA MOBILE GRP HENAN CO LTD

Frequency synchronous method of transparent clock and storage and forward method of synchronous messages

The invention discloses a frequency synchronous method of an IEEE1588 transparent clock and a storage and forward mode of synchronous messages. The frequency synchronous method includes that (1) a main clock periodically sends Sync messages, and the transparent clock passively receives and forwards the Sync messages; (2) the transparent clock records a receiving timestamp when the Sync messages reach the transparent clock and a sending timestamp when the Sync messages leave the main clock; (3) the transparent clock also records a sending timestamp and a receiving timestamp of next Sync message; (4) the method respectively obtains time that one Sync message gap uses to pass the main clock and the transparent clock; (5) the time ratio is utilized to obtain ratio of clock crystal oscillator frequency between the main clock and the transparent clock; and (6) the ratio of the clock crystal oscillator frequency is utilized to modify residence time. The method can improve accuracy for calculating residence time of the transparent clock. Simultaneously, forwarding of the synchronous messages adopts the storage and forward mode on the premise that the frequency is synchronous, and orderly forwarding of the Sync messages and FollowUp messages is strictly guaranteed.
Owner:SHANGHAI BAUD DATA COMM

Page information individualization processing method, device and system

The embodiment of the invention discloses a page information individualization processing method, device and system. The system comprises a first page setup server, a first client side page renderingassembly and a first algorithm server, wherein the first page setup server is used for receiving individualization configuration information of a target page, and adding the individualization configuration information to a target page when the target page is published; the first client side rendering assembly is used for obtaining page publishing information of the target page when a request to access the target page is received, determining user identifications of a visitor user, extracting individualization configuration information in the publishing information of the target page, regardingthe user identifications and the individualization configuration information as parameters, and sending the request to obtain the individualization calculating request to the first algorithm server;the first algorithm server is used for obtaining individualization preference information of the user according to the user identification information, and sorting resources in the target page according to the individualization preference information and the individualization configuration information of the page.
Owner:ALIBABA GRP HLDG LTD

High-precision five-shaft multi-dimensional ultrasonic polishing device

PendingCN107009200AChange processing characteristicsSmooth vibrationGrinding carriagesPolishing machinesRotary stagePolishing
The invention relates to a high-precision five-shaft multi-dimensional ultrasonic polishing device, and belongs to the field of polishing of a complicated curved surface element which has high precision and is difficult to machine. An upright guide rail is arranged at the upper part of an L-shaped base; an upright rotary table capable of moving up and down is arranged on the upright guide rail; a polishing tool head vibrator assembly is arranged on the upright rotary table; a horizontal guide rail I is arranged at the lower part of the L-shaped base; a horizontal guide rail II capable of moving forwards and backwards is arranged on the horizontal guide rail I; a horihzontal rotary tool table capable of moving leftwards and rightwards is arranged on the horizontal guide rail II; the vibration radiation surfaces of ultrasonic vibration exciting assemblies I and II in the horizontal rotary tool table are respectively in contact with two mutually perpendicular side surfaces of a workpiece clamp; one end of a three-degree-of-freedom mechanical arm is connected to the lower part of the L-shaped base in a rotatable manner; and an ultrasonic atomization spraying head is arranged at the other end of the three-degree-of-freedom mechanical arm. The device comprises multiple guide rails and the rotary table, thus providing five degrees of freedom, and can realize polishing of a complicated curved surface to complete machining of a complicated part which is difficult to machine with an existing machine tool.
Owner:NORTHEASTERN UNIV LIAONING

High-efficiency porous media combustor for minitype heat optoelectronic system

The invention provides a high-efficiency porous medium burner used in a micro thermo photovoltaic system, relating to the technical field of combined combustion of a two-phrase gas. SiC ceramic spherules with diameter of 0.3mm to 0.35mm are filled in a shell of the burner in the form of oblique parallelepiped and then sintered with the shell to form a porous medium structure with porosity epsilon equal to 26 percent to 27 percent and a tail gas discharging channel is arranged on the external wall of the burner. The shell of the burner is processed first and then a bottom cover (3) of the burner is processed and sintered with the shell, and finally, in the interior of which the screened SiC ceramic spherules with diameter of 0.34mm are filled, after sintering, the porous medium structure is formed and the tail gas discharging channel is arranged in the interior of the shell (2) of the burner. The porous medium burner reduces the heat loss brought by increase of surface to volume ratio due to microscale, greatly improves the temperature distribution on the external wall of the burner, promotes combustion efficiency and combustion stability, lowers gas discharging temperature and heightens the temperature of the external wall, thus greatly advancing the efficiency of the whole micro thermo photovoltaic system.
Owner:JIANGSU UNIV

Apparatus and method for separation of phases in a multiphase flow

A device is disclosed for the separation of liquid-liquid phase and / or a liquid-gas phase where one or more of the phases is suspended in water and has a bubble / drop / particle size in the sub micron and micron area, and / or fine particular organic or inorganic material is present in one or more of the phases. There is also disclosed a method and a use for the device.
Owner:SORBWATER TECH AS

Cell switching method and device and computer readable storage medium

The invention provides a cell switching method and device and a computer readable storage medium, and the method comprises the steps: obtaining a cell switching behavior of a terminal when the terminal is in a pilot pollution scene; and if the terminal is switched to the target cell with the highest service priority in all the service cells, the condition threshold of cell switching is improved. Through implementing the scheme of the invention, the tendency of the switching condition threshold value is adjusted for the cell providing the optimal service, so that the difficulty of switching theterminal out of the optimal service cell is improved, the residence time of the terminal in the optimal service cell can be prolonged, the cell switching frequency of the terminal is reduced, the communication performance of the terminal is improved, and the communication service quality of the terminal is effectively ensured.
Owner:OPPO CHONGQING INTELLIGENT TECH CO LTD

Magneto-rheological damper

The invention discloses a magneto-rheological damper. The magneto-rheological damper comprises a damping cylinder and a compensating cylinder which are connected vertically. The damping cylinder comprises an outer cylinder, wherein an inner cylinder is arranged in the outer cylinder, the outer wall of the inner cylinder is alternatively sleeved with magnet yoke rings and a permanent magnet ring; a magnet exciting coil winds in an annular groove formed by adjacent magnet yoke rings and the permanent magnet ring between them; the magnet yoke rings and the magnet exciting coil are externally and alternatively sleeved with flux sleeve rings and magnet isolating sleeve rings; an annular damping channel is formed among the flux sleeve rings, the magnet isolating sleeve rings, and the inner wall of the outer cylinder; the upper and lower end openings of the outer cylinder are equipped with upper and lower end covers, and the inner cylinder is provided with a damping piston for dividing a damping cavity inside into upper and lower cavities; the upper and lower cavities are interconnected with the damping channel. The compensating cylinder comprises a cylinder body, wherein the upper end opening of the cylinder body is connected with the lower end cover, and the lower end opening of the cylinder body is equipped with the end cover; a compensating cavity forms in the cylinder body, and the cylinder body is provided with a floating piston for dividing the compensating cavity into fluid and gas cavities; the fluid cavity is interconnected with the lower cavity. The magneto-rheological damper solves the contradiction of adjustable damping force and adjustable multiple of the existing magneto-rheological damper, and is especially applicable to half-active control of an impact vibrating system.
Owner:ACADEMY OF ARMORED FORCES ENG PLA

Polishing method based on dielectrophoresis effect and dedicated equipment thereof

InactiveCN103264321ASlow down the throw-out effectExtended dwell timeUniform fieldPower flow
The invention discloses a polishing method based on the dielectrophoresis effect and dedicated equipment of the polishing method. The polishing method includes a first step of placing a workpiece on a workpiece clamp, sticking a polishing pad to each insulating plate, a second step of enabling polishing agent and abrasive particles to enter a polishing area, a third step of enabling an upper polishing disk and a lower polishing disk to be connected with an alternating current power supply, wherein a frequency modulation voltage modulation controller controls the alternating current power supply, a non-uniform field is generated, and the polishing agent and the abrasive particles are polarized; and a fourth step of moving the polarized polishing agent and the abrasive particles to the polishing pads. The dedicated equipment constructed according to the polishing method comprises a polisher body which is provided with the upper polishing disk, the lower polishing disk and the workpiece clamp, wherein electrodes are additionally arranged on the upper polishing disk and on the lower polishing disk respectively, each insulating plate is arranged on the surface of one electrode, polishing agent injection openings are formed in the upper polishing disk, and the electrodes are respectively connected with the alternating current power supply, and the current of the alternating current power supply is connected with the frequency modulation voltage modulation controller. The polishing method based on the dielectrophoresis effect and the dedicated equipment of the polishing method have the advantages of slowing down the throwout of the polishing agent and the abrasive particles by the centrifugal force, prolonging the staying time of the polishing agent and the abrasive particles, and enabling the flatness of the workpiece to be higher.
Owner:ZHEJIANG UNIV OF TECH

Acoustic liner for air-inlet nacelle of aircraft engine and aircraft engine

The invention discloses an acoustic liner for an air-inlet nacelle of an aircraft engine and the aircraft engine. The acoustic liner is arranged on the inner wall of the air-inlet nacelle and is characterized in that a plurality of convex hulls are arranged on the inner wall of the acoustic liner. According to the acoustic liner and the aircraft engine, the convex hulls are arranged in the acoustic liner, when airflow entering the nacelle of the engine flows through the convex hulls, the airflow is accelerated to increase the axial Mach number of a region so as to prolong the residence time of a shock wave in the region, so that the attenuation of the shock wave is accelerated, a purpose of reducing the noise of the shock wave is achieved, the performance of a fan can be improved as well, and the integral performance of the engine is improved.
Owner:AECC COMML AIRCRAFT ENGINE CO LTD

Feeding mold removal agent formula and application method

The invention discloses a feeding mold removal agent formula. A mold removal agent comprises the following components in parts by mass: 50 to 100 parts of bacillus subtilis, 50 to 100 parts of bacillus licheniformis, 20 to 60 parts of enterococcus faecalis, 100 to 300 parts of yeast cell wall, 20 to 50 parts of lactobacillus plantarum, 30 to 50 parts of lactobacillus acidophilus, and 100 to 200 parts of montmorillonite. The mold removal agent provided by the invention can be directionally combined with various mycotoxins to form a stable compound which is cannot be absorbed and used by an intestinal tract, and the stable compound is eliminated from the body along with faeces, and has no influence on vitamin, amino acid and other nutrient substances. The growth and development of beasts and birds is promoted, the development of immune organs is promoted, the immune system function is enhanced, and the adaptability and the anti-stress capability of animals to the environment are improved, so that the disease resistance, the fertility rate and the hatching rate of the animals are improved. The use of antibiotics is reduced, the antibiotic residues in poultry products such as meat and eggs are reduced, and the food safety is improved.
Owner:WEIFANG ZHONGKEJIAYI BIO FODDER TECH

Preparation and application of light-triggered erythrocyte membrane wrapped NO nano bionic donor material

The invention discloses preparation and an application of a light-triggered erythrocyte membrane wrapped NO nano bionic donor material. The method comprises the following steps: (1) synthesizing a sulfhydrylated mesoporous silica wrapped polydopamine nanoparticle, (2) preparing a dual-load polydopamine (PDA) @ mesoporous silica nanoparticle, (3) preparing a target marked erythrocyte membrane, and(4) preparing a target molecular marked erythrocyte membrane wrapped dual-load polydopamine @ mesoporous silica nanoparticle. The PDA@mSiO2 nanoparticle with good photothermal conversion performance is successfully integrated in an NO bionic nanoparticle structure; a cell membrane can be ablated to effectively release a loaded medicine under stimulation of near infrared light; at the same time, amore obvious killing effect can be caused on tumor cells; and therefore, a combined application of various treatment means is achieved.
Owner:JINAN UNIVERSITY

Method and apparatus for providing data object information pages

The embodiment of the present application discloses a method and a device for providing a data object information page, wherein, the method comprises the following steps: a server determining scene information and a plurality of target data object information associated with the scene information; putting the information of the target data object into a resource bit of a page to generate a data object information page corresponding to the scene; wherein, the data object information page corresponding to the scene is a single screen page, and the information of each target data object is aggregated together in the same screen to express a plurality of usage requirements of the user under the scene, and the relationship between different target data objects includes complementary relationships in usage requirements under the scene. According to the embodiment of the present application, the efficiency of the resource bit can be improved, and the residence time of the user in the page canbe prolonged, and the page conversion rate can be improved.
Owner:ALIBABA GRP HLDG LTD

Method and device for providing page information

The embodiment of the invention discloses a method and device for providing page information. The method includes the steps that a client provides a data object information page; in the process of providing the page, browsing state information of a visitor is determined, and whether or not the browsing state information satisfies preset conditions is judged; if the preset conditions are met, prompt information associated with contents which are not displayed in the page is provided according to the information of the visitor. By means of the method, the residence time of the visitor in the page can be prolonged, and more content in the page can be exposed, thereby improving resource utilization in the page.
Owner:ALIBABA GRP HLDG LTD

Evaporating pipe and spraying device

ActiveCN107178793AStrengthen the degree of premixingExtended dwell timeContinuous combustion chamberCycloneCombustion chamber
The invention discloses an evaporating pipe. A fuel oil nozzle extends in from the inlet end of the evaporating pipe. The inlet end of the evaporating pipe is provided with a cyclone used for converting air flowing through the cyclone into rotary airflow. The cyclone is arranged between the evaporating pipe and the fuel oil nozzle and is located behind a spray opening of the fuel oil nozzle. An inlet of the evaporating pipe is provided with the cyclone, thus airflow in the evaporating pipe changes from non-prewhirl high-speed airflow into the rotary airflow. The rotary airflow can effectively reinforce the oil and gas premixing degree, the adverse impact caused by the difference of fuel oil flow of the spray opening of the fuel oil nozzle matched with the evaporating pipe in long-term work is avoided effectively, meanwhile, the rotary airflow can prolong the residence time of an oil and gas mixture in the evaporating pipe, then the time of oil and gas mixing is prolonged, the heat exchange area of the oil and gas mixture and the evaporating pipe wall is enlarged, the fuel oil atomization-evaporation rate is increased substantially through the high-temperature evaporating pipe, thus oil mist at an outlet of the evaporating pipe is distributed more evenly, and the performance of a combustor is ensured.
Owner:AECC HUNAN AVIATION POWERPLANT RES INST

Functional biological fixation in-situ remediation method for underground water polluted by nitrogen

The invention discloses a functional biological fixation in-situ remediation method for underground water polluted by nitrogen, belonging to the field of underground water remediation. The method comprises the following steps of: preparing immobilized materials; separately gathering autotrophy denitrifying bacteria; immobilizing microbes; and carrying out embedding and running processing on an immobilized carrier in the well completion process. The immobilized materials are obtained by selecting an optimal carrier material to prepare an adsorbent, and the denitrifying microbes are gathered from a primitive environment, immobilized and then placed into the primitive environment, the bacteria is ensured to exist and propagate in a stratal environment and the reaction residence time is controlled by controlling the water yield of a pumping well, thereby achieving the optimal denitrifying effect; in addition, the invention has obvious demonstration effect on processing the nitrogen-pollution of the underground water and good processing effect and is suitable for being popularized to wide underground water regions polluted by nitrogen.
Owner:NANJING UNIV

Ramjet combustion chamber

The invention belongs to the technical field of ramjets, and discloses a ramjet combustion chamber. The combustion chamber comprises an isolation segment, a sudden expansion segment, a cavity, a constant section segment and a tail spraying pipe which are arranged in sequence and are communicated in sequence. The distances from bottom plates of the isolation segment, the sudden expansion segment and the cavity to the top are sequentially increased; and a supporting plate cavity is formed in a supporting plate structure, and a fuel flow-in opening, a high-temperature airflow leading inlet and a plurality of jet holes communicated with the supporting plate cavity are formed in the supporting plate structure. A combination of the sudden expansion segment, the cavity and the supporting plate structure is adopted, and the mixing effect of fuel and incoming flow air is good; the supporting plate structure is arranged in an inclining manner, and the distribution range of fuel mixed gas sprayed out of the supporting plate structure in a runner is wide; the fuel and the high-temperature led airflow are contact in a supporting plate cavity in advance, the fuel obtains energy, and participates in combustion conveniently and rapidly, and the ignition speed is high; and a continuous stable flame is formed in the cavity, and diffusion and flame stabilizing are facilitated.
Owner:SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA +1

Turbine cooling cascade with vortex structure

InactiveCN101551120AReduce the spatial scaleReduce the impactContinuous combustion chamberCold airLeading edge
A turbine cooling cascade with a vortex structure relates to a turbine cooling cascade. The invention settles the problems of flowing loss, blending loss and easy burning of blade leading edge and end wall surface of blade leading edge caused by the existence of horse shoe vortex structure in the prior blade cascade. According to the blade (2) of the invention, a pressure surface (2-2) next to the blade leading edge (2-1), a suction surface (2-3) of blade (2) next to the blade leading edge (2-1) and the blade leading edge (1-1) of wall (1) are respectively provided with a plurality of elongated slots (3) which are distributed in row. One side wall of each elongated slot (3) is provided with a plurality of cold air injection openings (4). Furthermore the positions of cold air injection opening (4) are next to the base of elongated slot (3). The turbine cooling cascade with vortex structure according to the invention reduces the flowing loss at the inner part of flow passage, reduces the bigger blending loss of air currents with different flowing velocities, provides better thermal protection function for the end wall of blade and the blade surface, effectively protects the end wall adjacent with the blade leading edge and the high-temperature area on the surface of blade, and increases the usage factor of cold air.
Owner:HARBIN INST OF TECH

Quadruple linkage bad breath eliminating composition toothpaste

The invention discloses a quadruple linkage bad breath eliminating composition toothpaste which comprises an active ingredient consisting of the following components in percentage by weight: 0.5-1.5% of tea polyphenol, 0.5-1% of L-Ascorbic-acid-2-phosphate sodium, 1-3% of beta-cyclodextrin and 0.3-2% of a PVM / MA copolymer, and the balance being a toothpaste substrate. The toothpaste disclosed by the invention, through a linkage effect of four active ingredients, not only takes efficacy of single ingredient but also realizes a synergistic effect of all functional ingredients; by using the quadruple therapy to oral cavity, the toothpaste can inhibit odor inducing bacteria in the oral cavity through effective release of antibacterial ingredients in a process of brushing teeth; through an absorbent, bad breath in the oral cavity is absorbed; through absorption and film forming functions of the high-molecular copolymer, effective release of the active ingredients is guaranteed and residence time in the oral cavity is prolonged; meanwhile, a normal microorganism environment in the oral cavity is maintained, and effects of treating both symptoms and root causes and freshening breath for a long time are achieved, so as to meet requirements of people for improving images and pursuing healthy and green life.
Owner:广东名臣日化有限公司

Preparation method of super-hydrophobic surface with multi-scale structure

The invention discloses a preparation method of a super-hydrophobic surface with a multi-scale structure. The preparation method comprises the steps of firstly, manufacturing a micron-scale grid pattern on a silicon substrate by using a thick photoresist photoetching method, and manufacturing a groove array on the silicon substrate by using the photoetching grid pattern by using an etching method;then, manufacturing a smaller nano-scale groove array on the groove array through the laser ultra-light micro machining technology; and then using the silicon substrate with the micro-nano structureas a mold, and manufacturing the FEP structure through mold turnover by using a hot stamping method. The FEP structure prepared by the invention is manufactured by taking the silicon substrate with amicro-nano structure as a mold through mold turnover; the super-hydrophobic surface has a corresponding multi-scale structure as shown in an attached drawing, shows super-hydrophobicity in application, and can maintain C-B state stability for a longer time compared with a super-hydrophobic surface of a common microstructure, so that the super-hydrophobic performance is maintained for a long time,and the functions of drag reduction, self-cleaning and the like are shown.
Owner:XI AN JIAOTONG UNIV
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