In normal cells, p21 ACTS like a brake to block cell cycle progression in the event of DNA damage, preventing the cells from dividing and potentially becoming cancerous.
在正常的细胞中，如果DNA受损，p 21就会像刹车一样阻断细胞周期进程以防止细胞分裂和癌变。
2
Based on the brake characteristic of water-cooling disc brakes during going down, the FEM model of thermal analysis during cycle braking is established.
基于盘式刹车在下钻过程中的制动特性，建立了水冷式刹车盘下钻过程中循环制动的有限元分析模型。
3
This paper proposes a method to calculate the transient temperature field and stress field of a working brake disc with 3 dimensional cycle symmetric model.