2 results about "Ixeris" patented technology

The invention relates to a YOLOv4-based optimization method for rapid identification and detection of a sowthistle obstacle, and the method comprises the steps: initializing an anchor frame through employing a K-means algorithm, generating an anchor frame with higher scale adaptability, and enabling a model to be more suitable for the detection of slender sowthistle; aiming at network structure optimization of network scene particularity, cutting far all-grass of Chinese ixeris and near small all-grass of Chinese ixeris, and only stably detecting a close shot existing in each frame of image; in the optimization of a pooling mode, pooling is carried out by adopting an exponential weighted average filtering mode so as to reserve all useful information as much as possible. According to the method, the YOLOv4 is adopted to accurately detect the all-grass of Chinese Ixeris, optimization is carried out in three aspects of priori frame reclustering, a pooling mode and a network structure, and the optimized YOLOv4 can accelerate a target detection process, so that the method is suitable for real-time application, the use of calculation and memory resources is reduced, the method is suitable for an embedded system or equipment with resource limitation, and the detection efficiency of the all-grass of Chinese Ixeris is improved. The accuracy of target detection is not damaged as much as possible, and high-quality recognition of the target is kept.

The application discloses Ixeris sonchifolia Hance polysaccharides, a preparation method and application thereof, belongs to the technical field of plant polysaccharides, and provides polysaccharides ISP-1a and ISP-2a, wherein the ISP-1a has a molecular weight of 2086 Da and is composed of seven monosaccharides of mannose, rhamnose, glucuronic acid, glucose, galactose, xylose and arabinose; the ISP-2a has a molecular weight of 1781 Da and is composed of five monosaccharides of mannose, rhamnose, galacturonic acid, xylose and arabinose. The whole grass of Ixeris sonchifolia Hance is subjected to hot water extraction after ethanol degreasing, neutral enzyme + Sevage method is used to remove protein, macroporous resin is used for decolorization, column chromatography elution is carried out, purification is carried out, and two kinds of uniform polysaccharides are obtained after freeze-drying. The polysaccharides ISP-1a and ISP-2a have good antioxidant and lipid-lowering effects, and can be applied to the preparation of food, health products or medicines with antioxidant and lipid-lowering functions.