Abstract: This invention discloses a method and system for the segmentation and clustering of nuclei based on single-cell pathological images. The contour tracing method is used to calculate all the closed contours existing in the pathological tissue images; and optimizes the contours to obtain the segmented images of the nuclei. Then, according to the mask image corresponding to the segmented images of the nuclei, the segmented images of the nuclei are divided into individual nucleus images; the influencing features of the nuclei in the corresponding area are extracted through the mask image; through feature selection, redundant features are removed, and then the UMAP feature reduction method is used to select the two most important features for clustering the nuclei. By first segmenting and dividing the nucleus area in the pathological images, and then using the divided single nucleus for feature extraction, the basis for clustering is made more objective.

Abstract: A method for stabilizing fluorides and arsenic in soil includes: step 1, adding a calcium-containing compound to the soil contaminated by fluorides and arsenic, stirring uniformly, and standing for curing; step 2, adding an iron-containing compound to the mixture obtained in step 1, stirring uniformly, and standing for curing; and step 3, adding water to the mixture obtained in step 2, optionally adding a pH adjusting agent to adjust the gravimetric water content to 30%-40%, and standing for curing. The method uses calcium-containing and iron-containing compounds in a step-by-step manner, makes full use of the advantages of different passivation materials, combines the advantages of all reagents, and establishes an economical, efficient and environmentally friendly method for stabilizing fluorides and arsenic in soil to achieve effective remediation of contaminated soil.