A polymerase chain reaction ( PCR) assay targeting the gene encoding hly was developed for detecting Listeria monocytogenes in pure cell cultures and on artificially contaminated water, milk and pork. 用聚合酶链式反应(PCR)扩增hly基因,检测单核细胞增生症李斯特菌的纯培养物及其模拟污染的生猪肉、水和牛奶。
Compared to the traditional Freeman chain code, the proposed one is a hybrid encoding method based on Freeman chain code, differential code and Huffman code. 与传统的Freeman链码相比,提出的压缩算法是基于Freeman链码、差分编码和Huffman编码的一种混和编码方式。
Objective: To clone human T cell receptor ( TCR) ζ chain gene and express its encoding protein by baculoviral expression system in insect cells. 目的:克隆人T细胞受体(TCR)ζ链基因,运用昆虫杆状病毒系统表达该蛋白。
Chain coding and its evolutional method are lossless contour coding. Polygon approach contour encoding is loss coding. 形状和位置的无损编码方法有链码编码和基于链码的各种改进方法,有损编码方法有多边形近似替代法;