5results about How to "Clear separation" patented technology

The invention provides a non-contact life signal processing method in a strong clutter environment, and belongs to the field of data processing.The method comprises the steps that extreme points in a signal data sequence of a user and first and last signal data are recorded as to-be-corrected data; obtaining an amplitude adjustment parameter and a slope adjustment parameter of each piece of to-be-corrected data according to a numerical value difference and an acquisition time difference between each piece of to-be-corrected data and the to-be-corrected data on the left side and the right side of the to-be-corrected data; and combining the numerical value of the to-be-corrected data to obtain a corrected value of the to-be-corrected data, thereby obtaining upper and lower envelope lines. The invention aims to solve the problem that the signal data of a user is processed by an EMD (empirical mode decomposition) algorithm due to the fact that an upper envelope line and a lower envelope line which are obtained through extreme points in a signal data sequence are greatly influenced by noise because the noise in an environment where the user is located has a great influence on the signal data of the user. And the accuracy of the obtained heart rate signal and respiration signal is low.

This invention provides a collector for recovering platinum group metals (PGMs) from spent catalysts, its preparation method, and its application, belonging to the technical field of precious metal recovery. The collector comprises a copper matrix, a flux, a framework support, and a lattice activator: the copper matrix, flux, and lattice activator are loaded on the surface of the framework support; the copper matrix is ​​elemental copper or a copper-based compound; the flux is boric acid or a borate; the framework support is a porous inorganic material; and the lattice activator is tin, a tin alloy, or a metal sulfide. The collector serves as a collector for the pyrometallurgical recovery of PGMs from spent catalysts. This invention constructs a multi-component synergistic collector composed of a copper matrix, flux, framework support, and lattice activator, which significantly improves the recovery rate of PGMs, especially rhodium, from spent automotive exhaust purification catalysts in pyrometallurgical treatment, and reduces the smelting temperature required for pyrometallurgical treatment, thus significantly reducing energy consumption.

The application discloses a quality detection method of Yinxie No.1 oral granules, and relates to the field of traditional Chinese medicine analysis. The method adopts a thin layer chromatography method to identify Sophora flavescens, Glycyrrhiza uralensis, Arctium lappa and Saposhnikovia divaricata, and simultaneously adopts a high performance liquid chromatography method to detect the content of paeoniflorin, so that the quality of the Yinxie No.1 oral granules is comprehensively evaluated and controlled, a comprehensive and reliable basis is provided for the authenticity identification and internal quality detection of the granules, and the stability of product quality and the safety and effectiveness of clinical medication are ensured.

The invention discloses a nano metal oxide perfluoropolyether oil phase dispersion and a supergravity synthesis method thereof, and belongs to the technical field of material preparation. The dispersion is prepared from nano metal oxide particles modified by a surfactant and perfluoropolyether base oil in a mass ratio of (1: 5)-(1: 100). The synthesis method comprises the steps of metal salt dissolution, preparation of metal hydroxide through a supergravity reaction, oxidative conversion, in-situ surface modification and ultrasonic dispersion, and mass transfer is enhanced by a supergravity field so as to accurately control the particle size of particles. The dispersoid is transparent or semitransparent, the average particle size of nanoparticles is 3-15 nm, and the dispersoid is stable in an acid-base environment with the pH value of 1-14 and in a temperature range of-40 DEG C to 200 DEG C, is suitable for extreme working conditions such as aerospace and military industry, and has a wide application prospect.

The invention discloses a multi-modal large model space perception method based on 3D scene graph driving, and the method comprises the steps: taking a 3D semantic scene graph algorithm as an additional visual encoder of a multi-modal large model after obtaining multi-modal original information, extracting 3D object instance features in a scene and relation features between objects, and obtaining 3D perception capability; meanwhile, a structured scene topology description text is generated, and spatial perception representation with display and implicit coexistence is constructed; a point cloud punctuation mark mechanism based on geometric primitives is introduced, and standard geometry features are extracted and solidified through a shared 3D visual encoder to serve as anchor points for distinguishing different semantic units; a point cloud projection layer is constructed to uniformly map the features into semantic Token, and a composite input sequence is formed in combination with structured text prompt. Through a dual context guidance mechanism, depth space perception of a large model to a 3D scene is realized, and question and answer accuracy and logical reasoning ability of the model in a complex three-dimensional environment are significantly improved.