Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

284 results about "Overlapping structures" patented technology

What does it mean when a xray shows overlapping shadows? Dr. Joseph Accurso, University at Buffalo, The State University of New York School of Medicine & Biomedical ... May be a nodule or due to overlapping structures.". Ribs and vessels are 2 things that can add up to mimic disease. Thank 2 Thank s. 1 Doctor s Approved Home → Health Answers

Elliptical ultrasonic vibration auxiliary cutting device with adjustable track

The invention relates to an elliptical ultrasonic vibration auxiliary cutting device with an adjustable track, which consists of a transducer, an amplitude transformer and a cutter, wherein the transducer adopts a basic structure of a longitudinal vibration sandwiched piezoelectric chip, has revolution asymmetric characteristic structures of an overlapping structure of semicircular ring-shaped piezoelectric ceramic chips and electrode chips separately, an off-axis type catenary variable-amplitude structure and the like, and initiates and strengthens flexural vibration when longitudinal vibration is output; the amplitude transformer is a cylindrical bar with uniform cross sections, and a relative angle between the amplitude transformer and a front cover plate is adjustable; and the cutter is installed in an offset way in the radial direction at the tail end of the amplitude transformer, and the offset degree can be adjusted. The working frequency of the invention is higher than 20kHz and can better achieve the ultrasonic machining effect; the elliptical cutting track is long, the minor axis proportion is reasonable, so that the advantages of elliptical cutting can be fully used; the elliptical track can be adjusted to better adapt to machining of different machining materials and different cutting consumption; and single-point diamond ultraprecise cutting can be hopefully expanded to machining of iron-based materials and optical crisp and hard materials.
Owner:TSINGHUA UNIV

Multilayer structure of SiC/SiC (silicon carbide) composite cladding tube and preparation method thereof

The invention discloses a multilayer structure of an SiC / SiC (silicon carbide) composite cladding tube and a preparation method of the multilayer structure. The multilayer structure of the SiC / SiC composite cladding tube is formed by alternately overlapping an SiC whisker toughening SiC composite layer and a continuous SiC fiber toughening SiC composite layer according to design needs. A three-layer overlapping structure takes the SiC whisker toughening SiC composite layer as an inner layer, a continuous SiC fiber toughening SiC composite material as a middle layer and a SiC whisker toughening SiC composite material as an outer layer; the multilayer structure can be formed by continuous alternate overlapping according to the design needs. The SiC whisker toughening SiC composite layer in the multilayer structure mainly plays a role of seal leakage prevention, meanwhile, the SiC whisker toughening SiC composite layer has high strength and toughness, the continuous SiC fiber toughening SiC composite layer plays a role of strength supporting, the multilayer structure of the SiC / SiC composite cladding tube has high crack resistance, high heat conductivity, high specific stiffness, high specific strength, excellent thermal shock and the like.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Overlapping community discovering method based on spectral clustering and fuzzy sets

The invention relates to an overlapping community discovering method based on spectral clustering and fuzzy sets. The overlapping community discovering method comprises the steps that 1, data sets ofa social network are read to generate a network structure graph, and the attribute information of nodes in the network is acquired; 2, the Jaccard coefficient and the attribute information of the nodes in the network are combined to calculate the similarity value among the nodes in the network; 3, a similarity matrix is built based on the similarity value among the nodes, and accordingly the normalized Laplacian matrix is built; 4, the feature vector and the feature value of each node are calculated, and a new feature vector is generated by utilizing methods of iteration and compression; 5, the new feature vector is orthogonalized, the membership grade is calculated, and the nodes with a plurality of high community membership grade values are subjected to division of overlapping communities; 6, the community division meeting the highest modularity requirement is selected according to the modularity divided each time; and 7, the final community division result is output. The overlappingcommunity discovering method can efficiently and accurately discover and divide the overlapping structures in the complex network.
Owner:FUZHOU UNIV

Method for determining height of caving zone of stope with internal-staggered layer-staggered position type roadway layout

The invention relates to a method for determining height of a caving zone of a stope with an internal-staggered layer-staggered position type roadway layout, and the method is used for solving the problem that in a full-thickness coal mining method which uses the internal-staggered layer-staggered position type roadway layout, as a continuous working face is formed, the height of the caving zone of the stope is difficult to accurately determine, the type selection of equipment and the selection of a coal mining process cannot be optimal, and then, the safe mining is affected. According to the method for determining the height of the caving zone of the stope with the internal-staggered layer-staggered position type roadway layout, provided by the invention, a key layer is determined to be an object of study; and furthermore, according to the characteristics of the full-thickness coal mining method with the internal-staggered layer-staggered position type roadway layout, a plurality of working faces of the stope form an overlapped structure, the stope space on the working faces forming the overlapped structure are taken as a whole stope space, the key layer is judged according to the length of the whole stope space, and then, the height of the caving zone of an overlying rock layer of the mining work face is finally determined, so that the type selection of the equipment and the selection of the coal mining process are optimized, and the safe production is guaranteed.
Owner:CHINA UNIV OF MINING & TECH (BEIJING)

Stainless steel / alumina ceramic low stress hermetic seal solder

The invention relates to a silver alloy composite solder strip for a vacuum switch tube stainless steel and 95 percent alumina ceramic low-stress hermetic seal joint. The cross section of the composite solder strip has a three-layer overlapping structure of a solder alloy layer, a copper core layer and a solder alloy layer, wherein solder in the composite solder comprises the following compositions in percentage by mass: 55 to 72 percent of silver, 19.0 to 43.0 percent of copper and 0.50 to 4.50 percent of nickel; the melting temperature of the solder is between 780 and 835 DEG C, and the hermetic seal temperature is between 820 and 850 DEG C; the unilateral thickness of the solder alloy layer in the composite solder is between 0.08 and 0.20 millimeter; the copper core layer in the composite solder is copper with the purity of more than or equal to 99.95 percent or oxygen free copper; the interlayer composite proportion of the composite solder, namely the thickness of the solder layer to the thickness of the copper core layer to the thickness of the solder layer, is 1:X:1 (wherein, X is between 1.8 and 3.5); and firm metallurgical combination is formed between various layers. The intensity of the vacuum switch tube stainless steel and 95 percent alumina ceramic joint is more than or equal to 90 MPa, and the leakage rate of the joint is less than or equal to 1*10Pa.m/s.
Owner:SINO PLATINUM METALS CO LTD

High-heat-conductivity anisotropic polymer-based composite material and preparation method thereof

The invention provides a high-heat-conductivity anisotropic polymer-based composite material and a preparation method thereof. The composite material is of an overlapped structure consisting of multiple composite fiber layers after overlapping and hot-pressing, wherein the composite fiber layers are formed by covering surfaces of polymer nanofibers by heat conduction fillers. In preparation, a heat conduction packing dispersion solution is sucked into an injector for high-pressure electrostatic spraying, and is adhered to the polymer nanofibers under the actions of electrostatic force and hydrogen bonds, then a network structure with fillers which contact with one another and are arranged in an orientation direction is formed, and after overlapping, the composite material is prepared through cold-pressing compression and hot-pressing molding. Due to the special structure of the composite material, efficient conduction paths are formed by the fillers in the composite material filled with the fillers, the purpose that the heat conductivity of the polymer-based composite material is remarkably improved by a small amount of the high heat conduction fillers can be achieved, and heat conduction requirements in preparing electronic and electric equipment can be met.
Owner:SHANGHAI JIAO TONG UNIV

High-radiation film type metal compound material and manufacturing method thereof

The invention provides a high-radiation film type metal compound material and a manufacturing method thereof and belongs to the technical field of a high-radiation material. The compound material comprises three parts, namely metal layers, high-radiation film layers and a metal frame, wherein the high-radiation film layers are overlapped with the metal layers and the metal frame is used for cladding the edges of the metal layers and the edges of the high-radiation film layers. The manufacturing method comprises the following steps: firstly, respectively preparing the metal layers and the high-radiation film layers; interactively overlapping the metal layers and the high-radiation film layers till forming overlapping structures with required layer number; utilizing the metal frame to fix the overlapping structures of the metal layers and the high-radiation film layers; heating, thereby melting the contacting metal between the overlapping structures of the metal layers and the high-radiation film layers and between the metal frame and the overlapping structures; and reducing temperature, cooling and solidifying, thereby realizing the integral adhering forming. The structure of overlapped metal layers is adopted and the metal frame is used for cladding and fixing, so that the hardness of a high-radiation film is increased.
Owner:上海杰远环保科技有限公司

Hybrid different board material high-frequency board manufacturing method

ActiveCN107278062AAvoid bendingSolve the problem of overflow glueMultilayer circuit manufactureEpoxyProcess quality
The invention provides a hybrid different board material high-frequency board manufacturing method. A double-face copper-plated high-frequency board material and an epoxy resin board are employed for manufacturing, a non-flowing glue PP plate is utilized as a stitching medium of the high-frequency board material and the epoxy resin board, dimensions of a groove hole on the non-flowing glue PP plate are specially designed to solve a groove hole glue spilling problem, processing quality of products is improved, moreover, the overlapping process for drilling is further specially designed for the high-frequency board material, for a board material sinking problem of the high-frequency board material during stitching after grooving, a stitching overlapped structure is especially designed, a three-in-one buffer pad is employed to solve the grooving-side board material sinking problem, a hot pressing program is designed according to the stitching overlapped structure, the cold press time is further prolonged to further reduce a board bending problem caused by different expansion coefficients of different board materials, the high-frequency board material contains fillers which are not easily removed in a chemical glue removal mode, before electroplating, plasma glue removal is firstly carried out, chemical glue removal is then carried out, and complete cleaning is carried out to effectively improve electroplating quality.
Owner:VICTORY GIANT TECH HUIZHOU CO LTD

A kind of ito through hole capacitive touch screen and its manufacturing method

The invention discloses an indium tin oxide (ITO) through hole capacitance touch screen and a method for manufacturing the same. The ITO through hole capacitance touch screen comprises a decorative glass substrate, a capacitance functional substrate, an ITO electrode, a first insulating layer, an ITO through hole electrode, a metal electrode and a second insulating layer, wherein the capacitance functional substrate is overlapped on the decorative glass substrate by an optical adhesive layer; the ITO electrode, the first insulating layer, the ITO through hole electrode, the metal electrode and the second insulating layer are sequentially overlapped on the capacitance functional substrate; the ITO electrode comprises a capacitance screen driver (an ITO electrode 1) and an induction electrode (an ITO electrode 2), which are in a regular graphic structure; and the ITO electrode 1 and the ITO electrode 2 are on the same layer, independent of each other, insulated from each other, and vertically designed. By reasonably designing an overlapping structure of the capacitance touch screen and an ITO conduction mode, and by conducting ITO signal electrodes from up to down in an ITO through hole mode, the light transmission rate, operating stability and touch sensitivity of the capacitance touch screen are effectively improved.
Owner:SHENZHEN BAOMING TECH

Schottky diode and manufacturing method thereof

The invention discloses a Schottky diode and a manufacturing method thereof. The Schottky diode comprises a substrate, a buffer layer, an extension structure, a Schottky contact metal and an Ohmic contact metal, wherein the substrate the buffer layer and the extension structure are sequentially arranged in an overlapped structure; the extension structure comprises a super bonding layer, a GaN channel layer and a barrier layer which are sequentially stacked, and the super bonding layer is composed of a plurality of p-type GaN layer and a plurality of n-type GaN layer which are alternately stacked each other; the Schottky contact metal and the Ohmic contact metal are symmetrically arranged on the opposite two side surfaces of the extension structure, one ends of the Schottky contact metal and the Ohmic contact metal extend to the upper surface of the extension structure, and the other ends of the Schottky contact metal and the Ohmic contact metal extend to the buffer layer. The Schottky diode has relatively high pressure resistance, ensures current transmission capacity and stability and avoids a traditional field plate structure or protecting ring structure, thereby simplifying the manufacturing process and reducing the cost.
Owner:FIFTH ELECTRONICS RES INST OF MINIST OF IND & INFORMATION TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products