周期

Then, the dynamic behaviors of Lur'e system have been analyzed through the simulation method, and the paper presents that the final dynamic behaviors of the system are sequentially changed according to the following states: the unstable dispersing state, chaotic state, steady cycle state and balanced state respectively with the filtering wave function from weak to strong and under the condition of meeting parameters.

以一维逻辑斯蒂方程为工具，论证了一类非线性Lur'e系统通过周期倍化达到混沌的机制，深入研究了该系统由混沌转化为有规律的周期性问题，并通过仿真分析了Lur'e系统的动力学行为，得出了这类系统在满足参数条件下，随着滤波作用的由弱到强，系统的最终动力学行为依次按着不稳定的发散状态、混沌状态、稳定的周期态、平衡态的顺序变化。

Firstly, the function sinx that appears in the simple pendulum equation is replaced with a polynomial of degree 3 using Maclaurin series expansion and Chebyshev polynomial approximation. Subsequently, the resulting equation which is a Duffing type equation is approximately solved with combing Newton's method and the harmonic balance method.

首先，利用Maclaurin展开和Chebyshev多项式加速技术将单摆振动方程中的正弦型恢复力用三次多项式近似代替，得到一个Duffing型方程；然后，将牛顿法与谐波平衡法结合起来建立Duffing方程的解析逼近周期及周期解，从而给出单摆振动的解析逼近解。

The security market is the highly marketing place, so there is inevitably a close relationship between macroscopic economic operation and the security market. How to develop the security market and promote it coordinate with macro-economy under the lowly marketing level of macr

最后对证券市场和宏观经济波动周期异动机制进行分析，认为中国宏观经济周期是政府宏观经济政策调控下的总供给与总需求平衡的结果，并主要从政府行为、法规体系、市场结构、市场体系等方面探讨了证券市场存在的问题。

The character of motion of electron in periodic structure under magnetic field is analyzed in the article.

周期结构中的电子在磁场作用下的运动摘要：本文对周期结构中的电子在磁场作用下的运动规律做了1些分析。

One major creative cycle and integrative cycle is a part of every given year.

一个主要的创造周期和一个主要的整合周期是每个年份的一部分。

Software Development Cycle- identify the major software development cycle components and software technologies used to develop the software solution.

软件开发周期确定的主要软件开发周期，部件和软件技术，用于发展软件解决方案。

Questioner: Assuming a major cycle is 25,000 years, at the end of the first 25,000 year cycle, how long was the life span?

发问者：假设一个主周期是2万5千年，在第一个主周期结束的时候，寿命是多少？

If entities can do this in a moment, they may go forward in a moment, and, thus, were this to occur in a major cycle, indeed, the third-density planet would be vacated at the end of that cycle.

如果实体们可以在一个瞬间做到这点，他们就可以在一个瞬间向前进，因此，如果这个情况发生在一个主周期内，的确，这个第三密度的星球会在周期结束时被净空。

The second section: Under the conditions of nonlinear boundary controbility, we consider the initial boundary value problem of Camassa—Holm equations with dissipative. By using the contractive mapping fixed point theorem and a priori estimates, the existence of global smooth solution, global attractor in H〓, time periodic solution or almost-periodic solution and the global exponential stability are proved.

第二部分：在非线性控制边界条件之下，对于带耗散项的Camassa—Holm方程的初边值问题，用压缩映射不动点原理及先验估计方法，证明了整体光滑解的存在性、整体解的指数稳定性、H〓空间中整体吸引子的存在性以及时间周期解和殆时间周期解的存在性。

Results: Resveratrol significantly ihibited growth and proliferation of SW480 cells in time and dose dependent manner.Resveratrol perturbed cell cycle,and arrested SW480 cells in S-phase accompanied with reducing G2-phase cells.The ultrastructural change of the SW480 cells treated with resveratrol were as following:the number of microvilli on the surface ofplasm membrance decreased and the nucleolar margination was frequent in nucleus.

结果：白藜芦醇能抑制SW480细胞的生长增殖，并呈时间浓度依赖性；白藜芦醇能影响SW480细胞的细胞周期分布，使细胞周期阻滞于S期，G1期细胞减少；经白藜芦醇处理的SW480细胞可出现细胞超微结构的改变：可见染色体边聚，细胞表面突起减少，胞质内空泡化等凋亡形态的变化。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。