zero-gravity conditions

By Chaos theory, the Sufficient Conditions of a system existing chaos are the largest lyapunov exponents of this system are greater than zero.

由混沌理论，系统存在混沌的充分条件是系统的最大Lyapunov指数大于零。

Degradation of dye waste water by zero valent iron and EDTA under mild reaction conditions

利用Fe（0）-EDTA-空气在温和条件下降解模拟染料废水的研究

Based on the concept of two person zero sum differential game, the sufficient conditions for the existence of an H ∞ state feedback controller to guarantee the robust stability and disturbance attenuation level is obtained, and the solution is given in terms of Hamilton Jacobi Isaacs equation.

基于二人零和动态对策理论，给出并证明了系统鲁棒稳定以及扰动衰减问题解存在的充分条件，通过求解离散时间Hamilton jacobi Isaacs方程给出了其鲁棒H∞状态反馈控制解。

The dependent equations, given in this paper, of the classical electromagnetic field in three dimensional space are initial conditions that make the integral constant equal to zero.

本文给出的在三维空间中经典电磁场非独立的场方程，就是使积分常数为零的初始条件。

According to the Routh criterion, the linear interval mathematical model system stability's necessary and sufficient conditions are the first row numbers and are all positive numbers; they equal to its lower bound over zero.

根据Routh判据，区间数学模型的线性系统稳定性的充要条件是第一列全部为正数，等价于其下界大于零。