Existence of solutions to initial - value problem of impulsive differential equations with variable times 时变脉冲微分方程初值问题解的存在性
The authors investigate global properties arid uniform boundedness of impulsive differential equations with variable times using comparison principle 摘要运用比较原理研究了具有可变脉冲时刻的脉冲微分方程解的整体性质,给出了解一致有界的充分条件。
A variable time - headway car following model was presented based on time - headway distributing rule in actual traffic and one dimensional cellular automaton modeling theory 摘要依据不间断车流的车头时距分布规律和一维元胞自动机建模理论,提出了一种可变时距跟车模型。
Based on these new techniques , the software with automatically variable irregular space grid and automatically variable time stepsize has been developed , which greatly enhances the computational efficiency for the numerical solution of two - dimension three - temperature equations 在此基础上,针对欲求解的问题构造了一个自动改变空间网格自动改变时间步长的软件,大幅度提高了该问题的计算效率。
Under the assumption that environment does not change when robot is stationary , the traditional robot teleoperation derived by event avoids the problem of variable time delay , but at the same time it causes the robot to have the shortcoming of " moveing and waiting " 摘要传统的基于事件遥操作系统虽然巧妙地避开了变化时延问题,但是它具有“走走停停”的特点,即机器人将当前状态发送出去之后直到操作者的下一个指令到来之前机器人必须保证状态没有变化。