zero-gravity conditions

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。

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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。

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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

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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。

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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。

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