1、

The real quadratic system with one real straight line solution and two conjugate complex straight line solution

具有一条实积分直线和一对共轭复积分直线的实二次微分系统

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2、

In this paper, we consider the incomplete LU preconditioning strategies for the conjugate gradient iterative solution to the large sparse non-Hermitian systems resulting from finite element method ( FEM).

在这里,我们重点考虑了用不完全分解预处理技术结合共轭梯度迭代法求解此类型的大型非Hermit有限元方程。

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3、

Compared with direct conjugate gradient optimal control solution method, the method of this paper is a direct and effective way to solve the problem.

给出了使用共轭梯度直接最优控制解法与本文方法的结果比较,表明本文方法是解决该类问题的一种直观有效的途径。

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4、

This paper presents two kinds of improved preconditioned conjugate gradient method for solution of large sparse symmetric ill-conditioned linear equations in 3D eddy current field analysis.

本文针对三维涡流场问题分析中所形成的大型稀疏对称病态线性代数方程组,提出了两种改进型预处理共轭梯度法。

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5、

By discussion about a half-neutralization in an acid-base equilibrium, we reveal how the three connected species of acid system can coexist in solution with equal concentrations or percent of its conjugate base, and offer the method of preparation for this solution.

通过对鲜见报道的半中和酸碱平衡现象的深入讨论,揭示了相关三组分等浓度或等含量共存平衡的充分必要条件及相应的配制方法;

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6、

Buffer Solution usually containing a weak acid and its conjugate weak base, or a salt, of such a composition that the pH is held constant within a certain range.

缓冲溶液化学术语。通常指含有一种微酸和与之结合的一种微碱或盐,并能维持酸碱值基本恒定的溶液。

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7、

In this paper, we prove that the real quadratic system with one real straight line solution and two conjugate complex straight lin solutions is integrable system, so it do not has any limit cycle.

本文证明了具有一条实积分直线和一对共轭复积分直线的实二次系统都是可积系统,因而不可能存在极限环。

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