交通运输工程

• 车轮

  Wheels can not be neglected when simulating the complex flow field around a car.

  车轮在汽车外部复杂流场的数值计算中不能被忽略。

航空、航天科学技术

• 飞轮

  The allocation scheme of reaction wheels is analyzed, and the model of frictional characteristics of reaction wheel is built.

  分析了反作用飞轮的配置方案,建立了飞轮的摩擦特性数学模型。

数学

• 轮图

  Xu studied the minus edge domination numberγ'_m(G) of a graph and obtained two lower bounds of minus edge domination numbers,and determined minus edge domination numbers for complete graph,cycles and wheels.

  徐保根引入图的减边控制数γ′_m(G)并得到两个下界,确定了完全图、圈和轮图的减边控制数。