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

87results about How to "Little loss" patented technology

Automatic on-line diagnosis method for freight train coupler tail cotter position faults and system

The invention relates to an automatic on-line diagnosis method for freight train coupler tail cotter position faults and a system. The system comprises an image acquisition portion and a diagnosis portion, wherein the diagnosis portion comprises a positioning module and an identification module, the image acquisition portion is used for acquiring a coupler image, the coupler image is positioned and identified respectively by the positioning module and the identification module in the diagnosis portion, the positioning module is used for determining a position of the coupler tail cotter in the coupler image, the identification module is used for determining whether a bolt is lost according to the coupler image acquired by the positioning module, through the positioning module, normalized gradient amplitude characteristics and gradient histogram characteristics in six directions are combined to form composite dimension characteristics, the position of the coupler tail cotter can be acquired by utilizing a linear support vector machine (SVM); for the identification module, difference between the normal coupler tail cotter image and a bolt-lost cotter image are extracted by utilizing Haar characteristics, and an Adaboost decision tree is taken as a final classifier to determine whether a fault is generated.
Owner:BEIHANG UNIV

Manufacture method of carbonized particle nutrition soil for culturing arethusa plants

The invention relates to a manufacture method of carbonized particle nutrition soil for culturing arethusa plants. According to the method, clay powder and organic powder of crop straws, fungus culture waste materials, sawdust or grass scraps or sugarcane slag and the like are mixed into mixed materials; clean water and nutrition elements required by arethusa plants are added and are uniformly stirred; the materials are pressed into solid particles in the size required by the growth of the arethusa plants by a granulating machine; and the solid particles are subjected to dry distillation and carbonization in a sealed container to obtain carbonized particle nutrition soil; or the mixed materials are pressed into the particles without adding the nutrition elements, and the particles are subjected to dry distillation and carbonization and are then soaked by nutrition element solution to be made into the carbonized particle nutrition soil. The carbonized particle nutrition soil prepared by the method provided by the invention has the advantages that the culture substrate and the nutrition ingredients required by the arethusa plants are integrated, the special requirement of the arethusa plants on the culture substrates is met, the nutrition substances can be continuously provided for the arethusa plants, the selection and the ingredient matching of plant materials in the arethusa plant culture are simplified, and the culture method of the arethusa plants is standardized.
Owner:傅华龙

Focusing multimodal optical microprobe devices

The present invention provides an optical microprobe device and method for focusing multimodal radiation with wavelength-scale spatial resolution and delivering the focused radiation to a specimen, including: a radiation source; and one or more of a plurality of optically transparent or semitransparent spheres and a plurality of optically transparent or semitransparent cylinders optically coupled to the radiation source; wherein the one or more of the plurality of optically transparent or semitransparent spheres and the plurality of optically transparent or semitransparent cylinders periodically focus radiation optically transmitted from the radiation source such that radiation ultimately transmitted to the specimen has predetermined characteristics. Preferably, the spheres or cylinders are assembled inside one of a hollow waveguide, a hollow-core photonic crystal fiber, a capillary tube, and integrated in a multimode fiber. Alternatively, the spheres or cylinders are assembled on a substrate. Optionally, the optical microprobe device also includes one or more of a waveguide, an optical fiber, a lens, and an optical structure disposed between the radiation source and the spheres or cylinders. Optionally, the spheres or cylinders are made from optically nonlinear or active materials that permit efficient nonlinear frequency generation and low-threshold lasing using the optical microprobe device.
Owner:JUNIVERSITI OF NORT KAROLINA EHT SHARLOTT

Log structure combination tree-based two-stage combination method

ActiveCN107526550AAvoid repeated reading and writingReduce I/O amplificationInput/output to record carriersOpen sourceDatabase
The invention relates to a log structure combination tree-based two-stage combination method. The method comprises the following steps of 1) selecting out a layer with most unreasonable spatial distribution in an open source system according to an imbalance score; 2) selecting out a target file in the layer with the most unreasonable spatial distribution according to a polling rule; 3) segmenting the target file into fragments according to lower layer files covering a same key value range, linking each fragment with the lower layer file of the corresponding key value range, and adding SliceLinks for each lower layer file; 4) checking a SliceLink quantity of each lower layer file, entering the step 2) if the SliceLink quantities of all the lower layer files do not exceed a preset threshold, and entering the step 5) until the SliceLink quantities of the lower layer files exceed the preset threshold; and 5) reading the lower layer files with the SliceLink quantities exceeding the preset threshold, and the target file having the corresponding key value range and linked with the fragments of the lower layer files into a memory of the open source system to perform combination to generate a new file, and writing the new file into a layer where the lower layer files are located. The method can be widely applied to the technical field of information storage.
Owner:RENMIN UNIVERSITY OF CHINA

Focusing multimodal optical microprobe devices

The present invention provides an optical microprobe device and method for focusing multimodal radiation with wavelength-scale spatial resolution and delivering the focused radiation to a specimen, including: a radiation source; and one or more of a plurality of optically transparent or semitransparent spheres and a plurality of optically transparent or semitransparent cylinders optically coupled to the radiation source; wherein the one or more of the plurality of optically transparent or semitransparent spheres and the plurality of optically transparent or semitransparent cylinders periodically focus radiation optically transmitted from the radiation source such that radiation ultimately transmitted to the specimen has predetermined characteristics. Preferably, the spheres or cylinders are assembled inside one of a hollow waveguide, a hollow-core photonic crystal fiber, a capillary tube, and integrated in a multimode fiber. Alternatively, the spheres or cylinders are assembled on a substrate. Optionally, the optical microprobe device also includes one or more of a waveguide, an optical fiber, a lens, and an optical structure disposed between the radiation source and the spheres or cylinders. Optionally, the spheres or cylinders are made from optically nonlinear or active materials that permit efficient nonlinear frequency generation and low-threshold lasing using the optical microprobe device.
Owner:JUNIVERSITI OF NORT KAROLINA EHT SHARLOTT
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