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31results about How to "Guarantee through" patented technology

Microtube device and using method thereof

The invention relates to a microtube device and a using method thereof. The microtube device is characterized by comprising an upper layer of top cap layer and a lower layer of substrate layer, wherein the top cap layer is tightly connected with the surface of the substrate layer; the top cap layer and / or the substrate layer are / is provided with a branch microtube; the branch microtube consists of at least one activity screening tube, a buffer cavity and at least two branch tubes which are symmetrically distributed to the center of the buffer cavity; the buffer cavity is connected with the activity screening tube and the branch tube; meanwhile, the top cap layers corresponding to all the end positions of the branch microtube are provided with a hole respectively to form a sample inlet pool and a sample outlet pool; the sample inlet pools are communicated with the corresponding activity screening tube respectively; and the sample outlet pools are communicated with the corresponding branch tubes respectively. Cells can be cultured in situ in the sample outlet pool and can continuously generate a chemotactic matter by selectively adding cells capable of releasing the chemotactic matter into one or more sample outlet pools, so that uniform and stable chemical gradient fields are generated in the buffer cavity and the branch tubes. The microtube device has the advantages of simple manufacturing steps, low cost, quick and effective screening process, and easy popularization and use in ordinary laboratories.
Owner:CAPITALBIO CORP +1

Water-proof air-permeable polyurethane synthetic leather and preparation method thereof

The invention belongs to water-proof air-permeable polyurethane synthetic leather in the technical field of synthetic leather, comprising the following components by weight percent: 60-70% of polyurethane particles, 3-7% of lubricant, 1-3% of foaming agent, 4-8% of reconcile resin, 10-15% of calcium carbonate, 10-15% of sodium chloride the grain diameter of which is 100-200 meshes, and 1-3% of pigment. The preparation method of the invention comprises the following steps: feeding the materials into a blender, and evenly mixing the raw materials; placing into a banbury mixer, heating, plastifying; placing into a two-roller machine, gelling, homogenizing, filtering by a filter and extruding; placing into a calender, and pulling out into rubber fabric; placing into a laminator, and fitting with base fabric and shell fabric at the condition of heating and pressurizing; and placing into a foaming machine, decomposing and foaming at the high temperature, cooking in water for 10-24 hours at the temperature of 50-60 DEG C, changing water for 2-5 times, knurling and postprocessing. The beneficial effects of the invention are as follows: sodium chloride is added and then removed in preparation process, more extremely fine holes are generated, and the air permeability of the synthetic leather of the invention is enhanced.
Owner:张瑜

Solvent type transparent nanometer thermal insulation sizing agent and application method thereof

The invention relates to a solvent type transparent nanometer thermal insulation sizing agent and an application method thereof. The sizing agent is prepared from 10-30% of a nanocrystalline metal oxide the grain diameter of which is 10-100nm, 0.1-5% of a dispersing agent, 0.1-5% of a flatting agent and a diluter, wherein the nanocrystalline metal oxide is the mixture of nanometer ATO and/or ITO,WO3-x and Cr2O3. The application method comprises the following step of: mixing and using the sizing agent and the diluter as well as a light curing acrylic resin composition, a solvent type polyurethane coating, an acrylate coating or an acrylic ester pressure-sensitive adhesive and a polyurethane pressure-sensitive adhesive. The solvent type transparent nanometer thermal insulation sizing agent and the application method provided by the invention have the advantages that the dispersion of the sizing agent is good, the storage time is long, the WO3-x can powerfully absorb sunlight, and the solar radiation can be effectively controlled while transmission of highly visible light is guaranteed; the Cr2O3 and the WO3-x are matched so as to effectively control generation of Cr (6+), so that the sizing agent is safe and non-toxic; the sizing agent can be used in match with the diluter as well as the light curing resin, the solvent type polyurethane coating and the pressure-sensitive adhesive after dispersion, and the sizing agent is simple and convenient; the sizing agent has high transparency, low haze and high heat-insulating properties and a strong weather-proof chemical-resistance property; the application method is simple, the production cost is low, and the sizing agent is suitable for large scale production.
Owner:武汉羿阳科技有限公司

Flexible tranexamic acid liposome with effects of whitening and removing freckles as well as preparation method and application of flexible tranexamic acid liposome

The invention relates to a flexible tranexamic acid liposome with effects of whitening and removing freckles as well as a preparation method and application of the flexible tranexamic acid liposome. The flexible tranexamic acid liposome with effects of whitening and removing freckles is composed of the following components in percentage by mass: 0.1-6.0% of tranexamic acid, 1.0-12.0% of phospholipid, 0.5-5.0% of cholesterol, 0.05-1% of a membrane softener, 0.05-1.0% of ceramide, 0.5-3.0% of an emollient, 5.0-15.0% of polyhydric alcohols, 0.5-2.0% of an antioxidant and the balance of purified water. According to the flexible tranexamic acid liposome prepared in the invention, the various active ingredients realize functional complementation and can achieve synergistic effects; the drug loading capacity is high, the active ingredients with different effects, such as the tranexamic acid and the like, can be delivered to deep positions of the skin, and a long-term sustained release effectis achieved; and the accumulated transmission amount and retention volume of tranexamic acid cream are increased, the defect that an adverse reaction to the gastrointestinal tract is caused by oral medication is overcome, the compliance is improved, and the liposome is easily accepted by patients.
Owner:广州市晨茜化工有限公司

Core holding unit based on Zeiss MCT-400 CT scanning and application thereof

A core holding unit based on Zeiss MCT-400 CT scanning comprises a holding unit shell and is characterized in that the holding unit shell is a carbon fiber tube capable of bearing confining pressure. According to the parameters of the carbon fiber tube, the density ranges from 1.26 g/cm<3> to 1.34 g/cm<3>, the tensile strength is larger than or equal to 73 MPa, and the Brinell hardness is larger than or equal to 10. The carbon fiber tube is made of a carbon fiber and resin composite material, and the carbon fiber and resin composite material is sold on the market and is polysulfone which is an amorphous transparent or semitransparent polymer with slight amber, and the amorphous-type transparent or translucent polymer is excellent in mechanical property and has the advantages of being high in rigidity, resistant to abrasion, high in strength and the like. The shell of the core holding unit is the carbon fiber tube which is a microcrystalline graphite material obtained by performing carbonization and graphitization on organic fibers, the microcrystalline graphite material is a new material excellent in mechanical property, the specific gravity of the new material is smaller than 1/4 that of steel, the tensile strength of the carbon fiber and resin composite material is larger than 3500 MPa in general and is 7 times to 9 times that of steel, the tensile elasticity modulus ranges from 230 GPa to 430 GPa and is also higher than that of steel, and it can be guaranteed that X rays can penetrate through a wall surface, and it can also be guaranteed that the wall surface will not deform along with changes of experimental pressure.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Manufacturing method for mucuna pruriens test-tube plant

The invention provides a manufacturing method for a mucuna pruriens test-tube plant. According to the manufacturing method, seeds of mucuna pruriens are taken as explants, the disinfected seeds are inoculated into a test tube containing a culture medium, the test tube is packaged, and then the mucuna pruriens test-tube plant is formed. According to the manufacturing method, the early-stage cultureprocess of the test-tube plant is omitted, a baobab leaf extract is used in the culture medium for replacing a growth regulator, the ornamental value of the test-tube plant is improved through ediblepigments, thus the pollution rate is decreased through the Shannon No.1, and the ornamental period of the test-tube plant is prolonged; the combined action of the baobab leaf extract, the edible pigments and the Shannon No.1 can prolong the optimal ornamental period of test-tube plant, the baobab leaf extract and the edible pigments have a synergistic antibacterial effect, thus the production cost is greatly reduced, market promotion is easy, and economic benefits are increased; and according to a test-tube plant product, the growth and development processes of the test-tube plant from seedsto plantlets can be observed continuously and clearly, and the test-tube plant product has good ornamental value and science popularization education value.
Owner:海南大学三亚南繁研究院

An incubator box structure and test method for passive intermodulation test

ActiveCN107719855BGuarantee throughDoes not change the nature of electromagnetic wavesTransmitters monitoringReceivers monitoringExperimental methodsEngineering
The invention discloses an incubator body structure for a passive intermodulation test experiment and an experimental method and belongs to the field of aerospace experiments. The incubator body structure comprises an incubator main body structure, a first connection pipe and a second connection pipe; the first connection pipe and the second connection pipe are connected with the incubator main body structure; the incubator main body structure communicates with the outside through the first connection pipe and the second connection pipe; the incubator main body structure is made of a wave-transmitting material and used for accommodating to-be-tested passive components; and the first connection pipe is used for inputting gas into the incubator main body structure and exhausting the gas in the incubator main body structure. When a PIM test is conducted, the to-be-tested passive components are placed in the incubator body structure, and the high-temperature or low-temperature flight environment of an aircraft can be simulated in an incubator body; and meanwhile, as the incubator body structure is made of the wave-transmitting material, testing results are real and reliable, and the purpose that large component products are subjected to the PIM test in the high-temperature or low-temperature flight environment is achieved.
Owner:XIAN INSTITUE OF SPACE RADIO TECH

Composite substrate applied to direct type backlight LED chip and preparation method of composite substrate

The invention discloses a composite substrate applied to a direct type backlight LED chip and a preparation method of the composite substrate. The composite substrate applied to the direct type backlight LED chip comprises a sapphire substrate, nano-micron patterns are arranged on the sapphire substrate, and the nano-micron patterns are arranged on the sapphire substrate. Each nano-micron pattern comprises a hexagonal pyramid reflecting layer and a dielectric insulating layer which are arranged on the sapphire substrate. According to the composite substrate, the light emitting efficiency of light can be remarkably improved, and the brightness of an LED is improved. The preparation method of the composite substrate applied to the direct type backlight LED chip comprises the steps of cleaning, reflective layer coating, gluing, primary dry etching, cleaning, dielectric insulation layer deposition, primary gluing, exposure, development, secondary dry etching, secondary gluing, exposure, development, DBR reflective layer deposition and the like. The composite substrate prepared through the method has the advantages of being high in machining precision, good in product stability and high in light emitting efficiency, and can be widely applied to the field of LED substrate manufacturing.
Owner:黄山博蓝特光电技术有限公司

High-tensile-strength waterproof and moisture-permeable composite fabric material and preparation process thereof

The invention discloses a high-tensile-strength waterproof moisture-permeable composite fabric material and a preparation process thereof, the composite fabric material is prepared by compounding a base material and a functional layer by an adhesive, and the functional layer is prepared from ultra-high molecular weight polyethylene. According to the invention, through setting the materials and the preparation process in the composite fabric material, the textile fabric is used as a base material, the polyethylene with stronger hydrophobicity is used as a functional layer material, and a nano-scale microporous structure is formed, so that the composite fabric material has better water vapor molecule permeability and moisture permeability, and can well replace the composite material used in the current field; and the base material is subjected to adhesive dispensing in an arrangement manner and is subjected to thermal compounding with the functional layer to prepare the composite fabric material, the tensile strength of the composite fabric material is improved, meanwhile, the composite fabric material has excellent heat retention property and can be well applied to various fields, and the prepared clothes have the characteristics of high heat retention property, high sharp object puncture resistance strength and good moisture permeability.
Owner:JIANGSU HORIZON NEW ENERGY TECH CO LTD

A film covering machine for agricultural planting

The invention discloses a film laminating machine for agricultural planting, which comprises a base, four support plates distributed in a matrix are connected to the bottom of the base, and a second rotating shaft is rotatably connected between two adjacent support plates. The rotating shaft is symmetrically sleeved with rollers. The invention has a simple structure, and uses the agricultural vehicle to move the base through the traction frame, put the large pieces of soil slag into the mixing bucket, and the rollers rotate to drive the turntable and the first pulley to rotate respectively, and the first pulley drives the pulverizer pair to stir through the belt The soil slag in the barrel is crushed and filtered by the curved sieve plate, and the small-sized soil slag is discharged from the receiving hopper, L-shaped feeding tube and discharge pipe in sequence, and falls on the edge of the mulch film to fix the mulch film. , the small-sized soil residue can avoid smashing the plastic film, and can also compress the plastic film better. The rotation of the turntable can drive the arc-shaped sieve plate to move back and forth through the joint action of the connecting wire and the spring, so as to prevent the soil residue from blocking the curved screen. Plate, to ensure that the soil dregs continue to pass through the curved sieve plate.
Owner:真木农业设备(安徽)有限公司

Travel assisting device for blind person

The invention discloses a travel assisting device for a blind person. A rotary charging structure comprises a rotating head, an outer pipe, a first limiting ring, an inner pipe, a mounting hole, a mounting frame and a magnetic charging rod, wherein the outer pipe is arranged at the upper end of the rotating head, the first limiting ring is arranged at the upper end of the outer pipe, the inner pipe is movably connected to the interior of the outer pipe, the mounting hole is formed in the upper end of the inner pipe, the mounting frame is mounted at the bottom of the mounting hole, and the magnetic charging rod is mounted at the upper end of the mounting frame and is matched with a magnetic charging hole formed in the lower end of a storage battery. The travel assisting device for the blind person belongs to the field of blind guide sticks for the blind person, a charging box, the storage battery and the magnetic charging hole are matched with the magnetic charging rod, the magnetic charging rod is lifted in a lipstick rotating movement manner of the inner pipe and the outer pipe, and then the magnetic charging rod is inserted into the magnetic charging hole in the lower end of the storage battery; and by utilizing a rotating manner, the blind person does not need to insert the magnetic charging rod into an interface, so that the travel assisting device for the blind person brings convenience for the blind person to use.
Owner:HANGZHOU VOCATIONAL & TECHN COLLEGE

Solvent type transparent nanometer thermal insulation sizing agent and application method thereof

The invention relates to a solvent type transparent nanometer thermal insulation sizing agent and an application method thereof. The sizing agent is prepared from 10-30% of a nanocrystalline metal oxide the grain diameter of which is 10-100nm, 0.1-5% of a dispersing agent, 0.1-5% of a flatting agent and a diluter, wherein the nanocrystalline metal oxide is the mixture of nanometer ATO and / or ITO,WO3-x and Cr2O3. The application method comprises the following step of: mixing and using the sizing agent and the diluter as well as a light curing acrylic resin composition, a solvent type polyurethane coating, an acrylate coating or an acrylic ester pressure-sensitive adhesive and a polyurethane pressure-sensitive adhesive. The solvent type transparent nanometer thermal insulation sizing agent and the application method provided by the invention have the advantages that the dispersion of the sizing agent is good, the storage time is long, the WO3-x can powerfully absorb sunlight, and the solar radiation can be effectively controlled while transmission of highly visible light is guaranteed; the Cr2O3 and the WO3-x are matched so as to effectively control generation of Cr (6+), so that the sizing agent is safe and non-toxic; the sizing agent can be used in match with the diluter as well as the light curing resin, the solvent type polyurethane coating and the pressure-sensitive adhesive after dispersion, and the sizing agent is simple and convenient; the sizing agent has high transparency, low haze and high heat-insulating properties and a strong weather-proof chemical-resistance property; the application method is simple, the production cost is low, and the sizing agent is suitable for large scale production.
Owner:武汉羿阳科技有限公司
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