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In the first section,the existence of solution for a class of non-linear systems with three -point boundary problem is obtained by applying the differential inequality theory .

在第一部分中,我们应用微分不等式理论证明了一类非线性系统三点边值问题解的存在性;在第二部分中,运用微分不等式理论研究了一类带有转向点的拟线性奇摄动边值问题的非单调内层解;在第三部分中,利用对角化方法研究了一类向量二点或者三点边值问题解的存在性,并获得解及它的一、二阶导数的渐近估计。

For the second order inclusion, using the transformation of variable, the existence of nonoscillatory solutions can be reduced to the existence of solutions for a first order inclusion.

在引进了微分包含解的振动性和非振动性的定义之后,通过分析解的单调性给出了一类二阶包含解的渐近性和振动性的判别准则;对于一阶微分包含,首先证明了时滞微分方程的振动性定理,在此基础上给出微分包含的结果。

In chapter 2. to two classes of specific systems in engineering, we make researches into stability with respect to their own invariant sets through the theoretic techniques of HDS. And then we bring forward sufficient conditions of uniform asymptotic stability and exponential stability with respect to their own invariant sets in the sense of Lyapunov.

第二章针对实际工程之中的两类具体系统用混合动态系统的理论方法对其关于不变集的稳定性进行了研究,提出了它们关于各自的不变集在Lyapunov意义下一致渐近稳定、指数稳定的充分条件。

In order to analyze the stiffness of 3D 4 directional braided composites, the homogenization theory based on the multi-scale perturbation theory was used as the basic theory. The virtual displacement principle was used to educe the homogenization formulation of effective elastic modulus and the schemes to solve the problem using finite element method. The effective elastic modulus of 3D braided composites were predicted by this method and the calculation results agree quite well with experiment results.

在对三维编织复合材料刚度性能的分析过程中,以基于小参数渐近展开和多尺度摄动方法的均匀化理论为理论基础,用虚位移原理导出了等效弹性模量的均匀化列式及其有限元求解方程,从而通过细观和宏观有限元的数值分析方法预测了三维四向编织复合材料的等效弹性模量,预测结果与实验结果较为吻合。

The existence of positive periodic solution is obtained by the help of Mawhin continuation coincidence degree theory and the global attractivity of positive periodic solution is presented by Lyapunove method.

推广和改进了已有的相应的非脉冲微分方程的结论;利用Lyapunov泛函,得到了该系统正周期解是全局渐近稳定的,从而得到了周期解的存在唯一性,通过数值模拟来验证了所得到的结果。

In this paper,using the method of,we discuss septic Lacunary interpolation spljne,which is a generalization of,we derive some results on asymptotic representation,approximation degree and saturation

1—[3]讨论了五次缺插值问题,而[4]对它提出了一种分析方法,用这种方法来进一步讨论高次的缺插值问题是成功的,本文就是用这种方法讨论七次的问题,可以得到它的一些渐近式、逼近阶及饱和度的若干结果我们所讨论的七次样条 S_n它满足下列条件

Due to the violation of the PA condition, the distributions of Wald statistics and Score statistics based on GLS estimators are noncentral $\chi^{2}$ distributions. The efficiency of testing based on the GEE method is largely influenced.

由于PA条件不成立,回归系数的GLS估计不再是渐近无偏的,构造的Wald和Score统计量的分布不再是中心卡方分布,从而对于检验的效率也产生了严重影响。

Due to the violation of the PA condition, the distributions of Wald statistics and Score statistics based on GLS estimators are noncentral x~2 distributions. The efficiency of test based on the GEE mothod is infulenced.

由于PA条件不成立,回归系数的GLS估计不再是渐近无偏的,从而得到的Wald和Score统计量的分布不再是中心卡方分布拉,从而对于检验的效率也产生了一定的影响。

We also provide the ergodic convergence theorems for semitopological nonexpansive type mappings in the reflexive Banach in Chapter 3. By this theorem we can get the main results in [13]14[15][16], and we should notice that their methods do not extend beyond Lipschitzian mappings.

本文第三章在自反的Banach空间中给出了一般拓扑半群上渐近非扩张型半群的遍历收敛定理与其殆轨道情形的等价性,从而利用本章中的定理可以直接推得文[13][14][15][16]中的主要结果。

Petiole erect, 2.5-5 cm, glabrous; leaf blade abaxially pale green, with resinlike gland dots, adaxially deep green, cordate-ovate or triangular-ovate,(5-)10-25 ×(3.3-)5-13(-16.5) cm, palmately 5-veined, glabrous, base rounded or subtruncate, sometimes slightly cordate, margin entire, apex acuminate.

叶柄直立,2.5-5厘米,无毛;叶片背面浅的绿色,具腺体小圆点,正面深绿色,心形卵形或三角状心形的,( 5-)10-25 *(3.3-)5-13(-16.5)厘米,掌状5脉,无毛,基部圆形或近截形的,有时的稍心形的,边缘全缘,先端渐尖的。

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推荐网络例句

Recall that, in the Kolmogorov axiomatization, measurable sets are the sets which have a probability or, in other words, the sets corresponding to yes/no questions that have a probabilistic answer.

延期开工的Kolmogorov宣布要衡量所有套职能有限许多坐标限制在于衡量子寅。换句话说,如果是/否的问题回答f可看的价值观念在许多最有限坐标,然后它有一个概率的答案。

The experimental results showed that the algorithm can filter singular points and remain fixity of the target edge.

实验表明:基于模糊理论的图像智能滤波方法比常规图像滤波方法运算量小,它既能去除奇异点,又能保持图像中目标的边缘不变性,具有很好的滤波效果。

It explains in detail how the methods of elicitation, discussion, and induction are to be used in the physics teaching.

本文根据心理学原理论述了改革初中物理教学的必要性,并对"启发、讨论、归纳法"在物理教学中的应用作了详细的阐述。