Abstract: A method of crowdsourcing annotation for medical image data based on image comparison, includes developing an annotation task; acquiring and verifying medical images according to requirements of the annotation task, and performing statistics on the medical images that meet verification standards to obtain an amount of image data acquired; archiving the medical images that meet the verification standards to form a medical image database; setting up annotation rules, and generating annotation schemes and annotation samples according to the requirements of the annotation task and annotation rules; distributing the medical images in the medical image database to multiple crowdsourcing annotation sides, so that each medical image being annotated by the multiple crowdsourcing annotation sides; annotating, by the crowdsourcing annotation sides, the distributed medical images according to the annotation schemes and the annotation examples to form the annotated images; and merging multiple annotated images correspondi

Abstract: The present disclosure provides a preparation method of a Kaixinsan powder, including the following steps: pulverizing Radix Polygalae, Rhizoma Acori Graminei, ginseng, and Poria into a fine powder separately; and mixing each fine powder evenly in sequence according to a backing register method to obtain the Kaixinsan powder; where in the Kaixinsan powder, the fine powders each are required to pass through an 80-mesh sieve, and at least 95 wt% of each of the fine powders passes through a 100-mesh sieve. In the present disclosure, the fine powder of each medicinal material is capable of being mixed evenly, and has desirable dissolution effect and stability; and the Kaixinsan powder meets requirements for traditional Chinese medicine powders stipulated in Chinese Pharmacopoeia 2020 edition.

Abstract: The present application relates to a method of amplifying genomic DNA, comprising: (a) providing a first reaction mixture, wherein said first reaction mixture comprises a sample containing genomic DNA, a first primer, a mixture of nucleotide monomers, and a nucleic acid polymerase, wherein the first primer comprises, in a 5? to 3? orientation, a common sequence and a first variable sequence comprising a first random sequence; (b) placing the first reaction mixture in a first thermal cycle program to obtain a pre-amplification product; (c) providing a second reaction mixture, wherein said second reaction mixture comprises a pre-amplification product, a second primer, a mixture of nucleotide monomers, and a nucleic acid polymerase, wherein the second primer comprises or consists of, in a 5? to 3? orientation, a specific sequence and the common sequence; (d) placing the second reaction mixture in a second thermal cycle program for amplification, to obtain an amplification product.