34results about How to "Reduce clustering" patented technology

A nanometer antibacterial tile is disclosed and comprises ceramic raw materials and an antibacterial agent. The weight of the antibacterial agent is 1-5% of the total weight of the ceramic raw materials. The antibacterial agent is prepared from, by weight, 20-30 parts of nanometer silica sol, 2-3 parts of nano-silver, 1-2 parts of nanometer titanium oxide, 17-22 parts of a silane coupling agent, 2-3 parts of neodymium oxide and 1-2 parts of cerium oxide. The antibacterial agent comprising the nanometer silica sol, the nano-silver, the nanometer titanium oxide, the silane coupling agent, the neodymium oxide and the cerium oxide is added, wherein a cluster phenomenon between the nano-silver and the nanometer titanium oxide is effectively reduced through adopting the hydrosol of the nanometer silica as a carrier and adopting the silane coupling agent as a medium, the neodymium oxide and the cerium oxide which are rare earth oxides are introduced to activate antibacterial functions of the nano-silver and the nanometer titanium oxide, and the antibacterial functions of the nano-silver and the nanometer titanium oxide are effectively combined to achieve an excellent sterilization effect.

Electroluminescent (EL) light emitting structures comprises one or more active layers comprising rare earth luminescent centres in a host matrix for emitting light of a particular colour or wavelength and electrodes for application of an electric field and current injection for excitation of light emission. The host matrix is preferably a dielectric containing the rare earth luminescent centres, e.g. rare earth doped silicon dioxide, silicon nitride, silicon oxynitrides, alumina, dielectrics of the general formula SiaAlbOcNd, or rare earth oxides. For efficient impact excitation, corresponding drift layers adjacent each active layer have a thickness related to a respective excitation energy of an adjacent active layer. A stack of active layers emitting different colours may be combined to provide white light. For rare earth species having a host dependent emission spectrum, spectral emission of the stack may be tuned by appropriate selection of a different host matrix in successive active layers.

Electroluminescent (EL) light emitting structures comprises one or more active layers comprising rare earth luminescent centers in a host matrix for emitting light of a particular color or wavelength and electrodes for application of an electric field and current injection for excitation of light emission. The host matrix is preferably a dielectric containing the rare earth luminescent centers, e.g. rare earth doped silicon dioxide, silicon nitride, silicon oxynitrides, alumina, dielectrics of the general formula SiaAlbOcNd, or rare earth oxides. For efficient impact excitation, corresponding drift layers adjacent each active layer have a thickness related to a respective excitation energy of an adjacent active layer. A stack of active layers emitting different colors may be combined to provide white light. For rare earth species having a host dependent emission spectrum, spectral emission of the stack may be tuned by appropriate selection of a different host matrix in successive active layers.

Effectively displaying the results of a search, or identifying a specific object in a collection when the user only has a vague recollection of the properties of the object or is uncertain of the best search terms to use, is a difficult problem. To address such difficulties a method for displaying a collection of objects in three dimensions (3D) is described. Each object is represented using an image or icon and has associated metadata. Common metadata attributes such as colour (RGB, Brightness), creation date, title etc, between the objects are used to define a data space and each object is assigned a point in the dataspace. The dataspace is then projected down to a 3D viewing space where a representation or image of the object will be displayed in. To improve the visualisation of the objects, the projected points are adjusted so as to reduce the clustering of points whilst maintaining or preserving the order of the points. This declustering step preserves the structural relationship between the objects while optimising the viewing volume (effectively reducing void spaces in the displayed collection) thus improving the visual representation of the collection and allowing more efficient identification and selection of an object in the collection. The method can be used for visualising search results, files on a computer, objects in a physical library, or products for sale on a website, and can produce up to an 80% reduction in search times.

An algorithm for modulating printer half-tone screening based on the tonal values of the region being reproduced is provided. The algorithm determines the tonal values for a particular region and assigns real number constants to that region. As the clustering screen is applied, the threshold values in the clustering screen are reduced (divided) by the real number constants thereby modulating the effect of the application of the clustering screen. For deep tonal regions, the clustering screen is applied at full strength, while in light tonal regions no clustering effect is applied. The algorithm results in a an image that has a greater dynamic range without the appearance of stair stepping while eliminating clustering artifacts from the lighter regions.

The invention pertains to the field of material technology, in particular to a preparation method for a carboxylic carbon nanotube / nylon 66 composite material.The particular preparation procedure is as follows: preparing a carbon nanotube with carboxyl by acidulating the carbon nanotube; Preparing the carboxylic carbon nanotube / nylon 66 composite material by polymerizing the carboxylic carbon nanotube and the raw material (such as polybasic acid and polybasic amine) which is used for preparing the nylon 66 through in situ polymerization. The polycondensation of carboxy group on the carbon nanotube improves the dispersity and interfacial binding force of the carbon nanotube in nylon matrix, and carboxylic carbon nanotube / nylon composite material with excellent dispersive property is obtained.

The invention provides a modified acrylate heat-dissipation powder coating material which is prepared in a way that heat-dissipation agent is dispersed in a monomer solution, subjected to in-situ polymerization and then treated through desolventizing agent, wherein the weight ratio of the heat-dissipation agent to monomer is (1-25) to (7.5-9); the heat-dissipation agent comprises 82-90 percent of carbon fiber and 10-20 percent of nanometer material; and the monomer is one or more of styrene, methacrylic acid, glycidyl ester, acrylic acid-2-ethyl hexyl ester, methyl methacrylate and methyl acrylate. According to the invention, as the heat-dissipation coating material dispersed uniformly and added with the carbon fiber and nanometer material compound heat-dissipation particles is obtained by adopting solution in-situ polymerization, the heat transmission efficiency and the heat dissipation efficiency can be increased; and the heat-dissipation coating material can be coated as a heat-dissipation coating on the surface of a back plate of an LED LCM (liquid crystal model) to dissipate part of the heat generated by LEDs in a infrared radiation manner, so that the heat dissipation performance of the LED LCM is enhanced, and the heat dissipating capacity and the heat dissipation efficiency are improved in the same heat dissipation area.

The present invention relates to a device for detecting a target molecule within a sample comprising a sample container for the measurement of the target molecule within a sample, a magnetic particle, wherein said particle is functionalized with a first binding molecule capable of specifically binding to said target molecule, wherein said first binding molecule is attached to the particle, and a repulsive surface structure, which is directly attached to the surface of said particle, wherein said repulsive surface structure covers the surface of the magnetic particle so as to result in a specific net charge and / or steric repulsion of the magnetic particle, and a sensor surface comprising a second binding molecule, wherein said magnetic particles are capable of binding said second binding molecule of the sensor surface directly or indirectly; wherein the number of bound particles is directly or inversely related to the amount of target molecules present in the sample; and wherein said repulsive surface structure conveys an electrostatic and / or steric pushing effect on said magnetic particles towards said sensor surface. In a second aspect the invention describes a device for detecting a target molecule within a sample comprising a mixture of at least two types of magnetic particles, wherein one type is functionalized with a first binding molecule capable of specifically binding to said target molecule, wherein said first binding molecule is attached to the particle, and a second type is functionalized with a repulsive surface structure, which is directly attached to the surface of said particle, wherein said repulsive surface structure covers the surface of the magnetic particle so as to result in a specific net charge of the magnetic particle, and a sensor surface comprising a second binding molecule, wherein said magnetic particles are capable of binding said second binding molecule of the sensor surface directly or indirectly. Furthermore, the invention describes a method of detecting the presence or amount of a target molecule within a sample, as well as the use of a magnetic particle for detecting a target molecule within a sample.

The invention provides an epitaxial wafer of a green light emitting diode and a preparation method thereof, the epitaxial wafer of the green light emitting diode comprises a multi-quantum well layer and further comprises a multi-quantum well preparation layer, the multi-quantum well layer grows on the multi-quantum well preparation layer, the multi-quantum well preparation layer comprises an AlGaN layer, an InAlGaN layer, an InGaN layer and an InN layer which sequentially grow in an epitaxial mode, and the AlGaN layer, the InAlGaN layer, the InGaN layer and the InN layer are arranged on the multi-quantum well preparation layer. The multi-quantum well layer is grown on the InN layer. According to the invention, the multi-quantum well preparation layer with a special structural design is grown before the multi-quantum well, so that the defects in the quantum well are successfully reduced, the bottom layer is more matched with the crystal lattice of the quantum well, the stress of the green light multi-quantum well layer is released, an In-rich environment is provided, the incorporation of the green light In component is increased, and the light emitting efficiency is improved. And the polarization effect in the quantum well is reduced, so that the In clustering phenomenon is reduced, the In component distribution is more uniform, the light-emitting area is more uniform, and finally, the light-emitting wavelength uniformity is remarkably improved.

The invention discloses a red organic electroluminescent materials containing naphthylamine group and method for preparing same, wherein the material has the basic frame of triarylamine, whose extensibility on the three dimensional space and the large rigidity and molecular dimension of the naphthyl can reduce the clustering between the molecules.

The invention discloses an aluminum oxide composite material which graphene-oxide-coated aluminum oxide particles, an allyl phenolic compound modified bismaleimide-cyanate composite and a curing agent. The aluminum oxide surface is coated with the graphene oxide laminae and the allyl phenolic compound modified bismaleimide-cyanate composite, and the graphene oxide and the allyl phenolic compound modified bismaleimide-cyanate composite have high interaction force, thereby enhancing the interfacial interaction, lowering the interface resistance and reducing the cluster phenomenon. Compared with the traditional aluminum oxide composite material, the aluminum oxide composite material disclosed by the invention can not easily produce the cluster phenomenon. The invention also discloses a preparation method of the aluminum oxide composite material and a copper clad base plate using the aluminum oxide composite material.

The invention provides a solvent acrylic ester heat dissipation coating. The solvent acrylic ester heat dissipation coating is formed by first enabling a coolant to be scattered in monomer solution and then performing in situ polymerization, the weight ratio between the coolant and a monomer is (1-4):(6-9), the coolant is composed of 70-90% of carbon fiber and 10-30% of nano material, and the monomer is one or more of modified acrylic ester, acrylic acid or acrylic ester. Due to the fact that in situ polymerization of the solution is adopted, the evenly-scattered heat dissipation coating in which the carbon fiber and nano material composite heat dissipation particles are added is obtained, heat transfer and heat dissipation efficiency can be improved, the heat dissipation coating is coated on the surface of a back plate of a light-emitting diode (LED) liquid crystal module, part of heat generated by an LED is dissipated in an infrared radiation mode, the heat dissipation performance of the LED liquid crystal module is improved, the heat dissipation amount is increased on the same heat dissipation area, and the heat dissipation efficiency is improved.

The invention belongs to the field of display technology, and in particular relates to a quantum dot light-emitting diode and a preparation method thereof. A quantum dot light-emitting diode, comprising an anode, a cathode, and a quantum dot light-emitting layer between the anode and the cathode, an electron transport layer is arranged between the cathode and the quantum dot light-emitting layer, and the electron transport A material layer containing polyolefin is arranged between the layer and the quantum dot luminescent layer, and the polyolefin is cross-linked with each other to form a network structure. In the quantum dot light-emitting diode provided by the present invention, a special material layer is arranged between the electron transport layer and the quantum dot light-emitting layer. This material layer can reduce the electron injection rate of the device cathode, adjust the distribution of quantum dot particles, and make the quantum dots The interface between the light-emitting layer and the electron-transporting layer is optimized, thereby improving the efficiency and lifetime of the device.

The invention relates to the field of cosmetics, and discloses a plant anti-allergy component containing sunscreen spray composition. The plant anti-allergy component containing sunscreen spray composition is prepared through the following raw materials in percentage by weight: 20-32% of a 280-330nm wavelength UV absorbent, 3-7% of a 330-400nm wavelength UV absorbent, 53-65% of ethyl alcohol, 1.3-2.3% of acrylic acid (ester) / octyl acrylamide copolymer, 4-8% of volatile oil, 0.1-2.5% of a plant anti-allergy composition, and 1-6% of deionized water. The composition overcomes the defects in theprior art, and is high in sunscreen value, skin friendly and inirritative.

The invention provides a pressure-sensitive acrylic acid thermally conductive adhesive, formed by dispersing a thermally conductive agent in monomer solution at first, then performing an in-situ polymerization, wherein the dosage ratio of the thermally conductive agent to the monomer is (1 to 4): (6 to 9); the thermally conductive agent is composed of 75-90% of carbon fibres and 10-25% of carbon nano-tubes; and the monomer is acrylic acid and / or acrylate. The pressure-sensitive acrylic acid thermally conductive adhesive provided by the invention is excellent in thermal conductivility and goodin environmental protection property because of uniformly dispersing a thermally conductive agent consisting of specific components in an acrylic acid polymerized monomer to form a stable three-dimensional meshy thermally conductive structure. The pressure-sensitive acrylic acid thermally conductive adhesive can be used between an LED (light-emitting diode) lamp bar and a back plate, between the LED lamp bar and an aluminium alloy section, between the back plate and the aluminium alloy section, between the gaps of chips such as CPU and GPU and a radiator, and in case that the gap of two contact surfaces is narrow in a liquid crystal module.

The invention provides a substrate-free pressure-sensitive acrylic thermal conductive adhesive. A thermal conductive agent is dispersed in a monomer solution, and the thermal conductive adhesive is formed by curing and cross-linking after in situ polymerization; the consumption ratio of the thermal conductive agent to the monomer is (1-4): (6-9); the thermal conductive agent consists of 75 to 90 percent of carbon fibers and 10 to 25 percent of carbon nano tubes; and the monomer is acrylic acid and / or acrylate. Because the thermal conductive agent of specific components is uniformly dispersed in the acrylic polymerization monomer to form a stable three-dimensional netlike thermal conductive structure, so that the thermal conductive adhesive is good in thermal conductive performance and good in environment friendliness. The thermal conductive adhesive can be applied between a light emitting diode (LED) light bar and an aluminum alloy profile, between the aluminum alloy profile and a back plate, between the LED light bar and the back plate or between a chip and a radiator, is used as a double-sided adhesive tape, and is used under the condition of a big gap between two contact faces of liquid crystal modules.