34results about How to "Reduce clustering" patented technology

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.

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.

Approaches for facilitating crowdsourcing of event-related social media posts are disclosed. In certain implementations, a first post that includes information specifying a first meteorological event may be received from a first user. Information specifying a first location associated with the first post may be obtained. A determination of whether the first location is within a predetermined proximity threshold of a second location associated with a second post that includes information specifying the first meteorological event may be effectuated. The first post may be presented to one or more other users in response to a determination that the first location is not within the predetermined proximity threshold.

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.

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.

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.

A semantic contact center management method and system is provided in which the resources of a contact center (including agents and contacts) are represented as resources connected by properties such as skills and shared prior interactions. Contacts are allocated to agents based on the degree of connectedness and the availability of agents, and this provides visual tools to represent the state of the contact center and to enable automated and supervisor intervention.

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.

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.

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 light emitting diode epitaxial wafer and a manufacturing method thereof. The epitaxial wafer comprises a substrate, a buffer layer, an undoped u-GaN layer, an N-type GaN layer, a stress release layer, a multi-quantum well layer, an electron barrier layer and a P-type GaN layer, the multi-quantum well layer comprises a front insertion layer, a quantum well layer, a rear insertion layer and a quantum barrier layer; the front insertion layer comprises an In < x > N < 1-x > layer and an In < y > Ga < 1-y > N layer, and the contact surface of the In < x > N < 1-x > layer and the In < y > Ga < 1-y > N layer is processed by H2 to form a hole and processed by NH3 to form an N polar surface; the rear insertion layer comprises an Al < z > Ga < 1-z > N layer and a GaN layer, the surface, in contact with the Al < z > Ga < 1-z > N layer, of the quantum well layer is subjected to NH3 treatment to form an N polar surface, and the surface, in contact with the quantum barrier layer, of the GaN layer is subjected to H2 treatment. According to the invention, the problems of low luminous efficiency and low wavelength uniformity of the existing light-emitting diode are solved.

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 present invention provides methods of inhibiting a tau protein such as h-tau42 or a biologically active fragment, derivative or analog thereof, methods of treating a disease caused by a tau protein such as h-tau42, and methods to identify agents that may inhibit a tau protein such as h-tau42. The methods for identifying an agent effective to inhibit a tau protein may feature administering an agent; and observing either i) a reduction in biological activity of the tau protein or a biologically active fragment, derivative or analog thereof or ii) a reduction in phosphorylation of the tau protein or a biologically active fragment, derivative or analog thereof.

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 relates to preparation method of aminated carbon nanotube with high dispersibility / nylon 66 composite material, which belongs to the material technology field. The preparation method comprises the following steps that firstly, acidification is performed to the carbon nanotube to produce carbon nanotube carried with a carboxyl group, and a series of surface modification is further performed to the carboxylated carbon nanotube, to prepare the amido carbon nanotube carried with the amine groups. The aminated carbon nanotube is polymerized with hexanediamine and adipic acid through the in-situ polymerization method, to ensure the amine groups on the carbon nanotube to take part in the polycondensation reaction, so as to obtain the required products. The invention improves the dispersilbility and the interface bonding force of the carbon nanotube in the nylon 66, and obtains the aminated carbon nanotube with good dispersion property / nylon 66 composite material.

Disclosed is a fuel tank for a motor vehicle whose inner face is processed with an inorganic coating agent comprising (A) fine particles carrying silver and / or copper and (B) inorganic fine particles, and the tank inhibits oxidation of the fuel such as gasoline or light oil, and further decreases the cluster of gasoline or light oil to make finer the particle size of atomized fuel, thereby improving ignitionability and combustibility, which makes it possible to decrease imperfect combustion and to decrease substantially the consumption of the fuel.

The invention relates to a production process fault detection method based on Markov chain spectral clustering, and the method mainly comprises the steps: offline model building and online detection, the offline model building comprises the steps: carrying out the sub-stage division of training sample data, building a detection model through principal component analysis, and determining the control limits of T2 and SPE statistics; the online detection mainly comprises the steps of collecting new sample data, calculating a detection index value of the new sample data, and determining whether to give an alarm by judging whether the detection index value exceeds a control limit; according to the method, stage division is carried out on batch of the intermittent process, the problems of data interruption and unequal length of data are effectively avoided, and the influence of outlier data and noise on clustering and fault detection is effectively reduced.

Disclosed is a modified aluminium oxide composite material, comprising the following materials in parts by mass: 35-55 parts of modified aluminium oxide particles, 25-35 parts of reinforced fibers, 15-35 parts of a liquid crystal epoxy resin, 10-21 parts of a curing agent and 0.1-1 parts of an accelerant; the modified aluminium oxide particles are obtained by modifying aluminium oxide particles by a silane coupling agent. The modified aluminium oxide composite material comprises modified aluminium oxide particles, reinforced fibers and a liquid crystal epoxy resin. After the aluminium oxide particles are modified by the silane coupling agent, active chemical groups such as an amino group and a hydroxyl group are formed on the surface thereof, and the aluminium oxide particles are chemically bonded to the liquid crystal epoxy resin via active groups such as the amino group and the hydroxyl group formed on the surface, thus improving an interaction effect at an interface, reducing thermal resistance at the interface and reducing clustering. Also disclosed are a copper-coated substrate employing the above modified aluminium oxide composite material and preparation method thereof.

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 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 present invention relates to guiding an interventional device. In order to provide improved guidance when navigating by the aid of roadmapping, an apparatus (10) for guidance of an interventional device is provided. The apparatus comprises an input unit (12); a data storage unit (14), a data processing unit (16) and an output unit (18). The data storage unit is configured to provide a vasculature map of a region of interest with a vasculature presentation of a subject's vasculature structure. The input unit is configured to receive and transfer to the data processing unit at least one current image of the region of interest, wherein an interventional device is at least partly visible in the at least one current image when inserted within the vasculature structure in the region of interest. The data processing unit is configured to combine the vasculature map and the at least one current image, and to detect a location of at least one part of the interventional device in the vasculature map, and to detect if the at least one part of the interventional device lays outside the vasculature presentation shown in the vasculature map and to determine a branching-off location for the interventional device on the vasculature map, and also to adapt the vasculature map in the branching-off location providing an indication of the branching-off location. The output unit is configured to provide an adapted vasculature map.