查询词典 periodic

The most common hypsarrhythmic variant was burst suppression (n=100, 55%), wherease typical hypsarrhythmia existed in only 74 cases (41%). Other common variants were periodic hypsarrhythmia, interhemispheric asymmetry, and increased interhemispheric synchrony.

高峰节律紊乱变异类型最常见者为爆发抑制，占 10 0例(5 5 %)，而典型高峰节律紊乱只见于 74例(4 1%)，其它较常见的变异类型为周期性 5 4例(30 %)，不对称型 2 5例(14%)，同步化 2 2例(12 %)。

Therefore, basing on the characteristic of the wireless sensor network and the requirement of saving energy, a network work mode with periodic and interruptive monitoring is designed to fulfill the requirement of the monitoring work The designed network is tested in many times in the straight indoor aisle which is 90 meters long.

为此，针对无线传感器网络自身的特点，设计了周期巡检和中断唤醒相结合的网络工作方式，使无线监测网络在节能的前提下可以满足上述监测工作的要求。

Firstly, by means of the intractability of discrete logarithm problem, a threshold secret sharing scheme with periodic renewing to identify cheaters is established.

本文阐述了秘密共享方案的研究现状及背景，设计了安全。。。

In Chapter 4, for a discrete dynamical system defined on a compact metric space, we prove a necessary and sufficient condition for an invariant set to be a periodic orbit.

第四章，对于定义在紧致度量空间上的离散动力系统，给出了一个不变集是一条周期轨道的一个充分必要条件。

Then we researched the existence of periodic solution of order one of this modified model by using theories of invariant set of impulsive semi-dynamical system and Brouwer\'s fixed point.

第三章考虑了一类具有非线性传染力函数的传染病模型，其中人口出生率和死亡率相同并且患病者病愈后可自然获得免疫但一段时间后免疫力也会自然丧失。

Two special cases are discussed: flow due to a constant pressure gradient and flow due to a periodic one; In chapter 4, on the basis of the method of fractional element proposed by Schiessel et al and of the generalized fractional element networks proposed by Xu and Tan and by the use of discretization method for solving the inverse Laplace transform, we obtain the creep compliance of Zener and Poynting-Thomson models which are composed of the generalized fractional element networks.

并讨论了如下两种特殊情形：常压力梯度下的流动和周期性压力梯度下的流动；第四章在Schiessel等提出的分数阶单元法和徐明瑜等提出的广义分数阶单元网络的基础上，应用离散求逆Laplace变换的方法，给出并讨论了广义分数阶单元网络Zener和Poynting-Thomson模型的蠕变柔量。

Sequential dynamical system; functional digraph ; orbit ; width ; periodic point ; fixed point ; invertible ; matrix ; Markov chain ; adaptive ; acyclic orientation ; word ; C-pseud independent set ; random graph

南开大学；郑洁贯序动力系统；像图；轨道；宽度；周期点；固定点；可逆；矩阵；马氏链；适应；无圈定向；字； C-伪独立集；随机图

In the first chapter, some knowledge about Hamiltonian system, the theory of stability and monotonicity and isochronism of periodic orbits are given.

本书的绪言介绍了Hamilton系统及其应用，微分方程稳定性理论和系统周期轨单调性及同步的概念。

Moreover, as part of such a shift, it might be possible, in Jeffersonian fashion, to develop practices whereby every decade all fundamental laws and institutional arrangements could lapse and periodic assemblies could be convened so that each generation had the "right to choose for itself the form of government it believes most promotive of its own happiness."

此外，采取杰斐逊式做法，随着实践的发展，作为这种转变的一部分，凭借每十年中所有基本法律的制定和体制的设计可能失效，以及定期议会可以召开，以致每一代人"有权选择它认为最能提升自己幸福的政府结构"21，这也许是有可能做到的。

This practical course introduces ideas of securities investment, investment strategies, securities market rule and natural periodic theory, K line theory, some methods, such as technical indicator analysis, chart pattern analysis, and then directs students to operate and realize.

该实践模拟课程为学生介绍证券投资理念、投资策略、证券市场定律与本性周期理论、K线理论，技术指标分析，图形形态分析等方法，并指导学生实际操作与体会。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。