查询词典 periodic

Quasi-static deformation of granular materials was examined by performing discrete element simulations on polydisperse systems of elastic-perfectly plastic spheres in a periodic cell.

0引言沙石、土壤及粉末材料等的宏观变形力学性能在某种程度上由其组成颗粒的特性及颗粒间接触的力–变形行为所决定。

In Chapter 2, by using M-matrix theory, some analysis techniques and constructing suitable Lyapunov functionals, we investigate the convergence of solutions and the existence and uniqueness of periodic solution for system:where ft and g, are the propagational signal functions defined onR.

在第二章中，讨论一类推广的具变时滞和变系数的双向联想记忆神经网络模型的渐近状态。

In Chapter 2, by using M-matrix theory, some analysis techniques and constructing suitable Lyapunov functionals, we investigate the convergence of solutions and the existence and uniqueness of periodic solution for system:where ft and g, are the propagational signal functions defined onR.

在第二章中，讨论一类推广的具变时滞和变系数的双向联想记忆神经网络模型的渐近状态。这里，信号传输函数f_i，g_i(i=1，2，…，n，j=1，2，…，m)是R→R上的连续函数，且满足Lipschitz条件。

Because of periodically faulting hydrocarbon pumping migration along fault zone is periodic, intermittent and pulsant, and hydrocarbon migration and accumulation often locates the newest strata.

断裂周期性破裂活动的特征决定了油气沿断裂的垂向泵吸运移呈周期性、间歇性和脉动的特点，同时也决定了油气易于在断裂错开的最新层位聚集成藏。

Then the flow in the curved pipe and reducing pipe was simulated through using CFD software, know that fluid passing curved pipe, reducing pipe can form secondary flow, vortex shedding, circumfluence, occur separation of boundary layer and periodic circulation flow, make the fluid pulsant, then cause the pipe vibrancy.

然后再应用通用CFD软件对具有弯曲和变径的热风炉管内流场进行模拟，得到当流体流过弯管、文氏管后形成了二次流、环流，并发生边界层分离和周期性旋涡脱落，它们会使后面的管流处于脉动状态，脉动状态的流体在管内流动时，会引起管道系统产生振动。

Methods: 12902 pregnant women who were accepted periodic prenatal examination and delivery in our hospital were detected by dopier color ultrasound from July 2004 to January 2006. We measured the width of bilateral renal pelvis, and followed up the fetuses with pyelectasis thicker than 5mm. Results:226 cases were found having unilateral or bilateral pyelectasis thicker than 5mm.

2004年7月~2006年1月南京大学医学院附属鼓楼医院产前诊断中心对在本院门诊定期产前检查及住院分娩的孕妇进行胎儿产前多参数超声筛查12902例，超声测量胎儿双侧肾盂宽度，对肾盂扩张≥5mm者，分组进行随访观察。

Especially it is pointed out that a system is quadratically stable under a switching sequence if and only if the system is asymptotically stable under a periodic switching sequence.

特别指出，一个系统可经切换达到二次稳定的充要条件是该系统可经周期切换渐近稳定。

Time series model can simulate and predict the increase of Quercus variabilis population by the difference, periodic method.

时间序列分析可以通过差分、周期的方法，对植物种群的增长进行模拟与预测。

After reviewing the main design idea of single agent architecture, such as the agent architecture in PTS domain and several typical interactive agent architecture, we defined the model of Multi-Agent System Based on Co-Evolution, and made a deep analysis of the components of MASBCE and the interactions among them. By the means of analysis for the layered design method of co-evolutionary agent architecture, the interaction process of the agent and the world model, the cycling process at deferent level of MASBCE, the periodic step mechanism of MASBCE, etc., we radicated the architecture of MASBCE and its inner operation mechanism.

在考察了各种典型的智能体体系结构及PTS领域的智能体体系结构等单个智能体体系结构主要设计思想的基础上，定义了基于协进化的多智能体系统MASBCE，对MASBCE的构成及其相互之间的联系进行了深入分析，通过对协进化智能体体系结构的分层设计方法、智能体与世界模型的交互过程、MASBCE中的分级循环过程、MASBCE中的周期步进运行机制等的分析，明确了MASBCE的体系结构及内部的运作机制。

This is in contrast with an overdraft which is subject to periodic review and is in principle recallable at any time.

这同透支不向，透支要接受定期检查，且在原则上可随时要求还款。

No private piques nor quarrels about nations, families, religions or politics must by any means or under any colour or pretence whatsoever be brought within the doors of the lodge; for as Masons we are of the most ancient catholic religion, above mentioned and of all nations upon the square, level and plumb; and like our predecessors in all ages we are resolved against political disputes, as contrary to the peace and welfare of the Lodge.

没有私人激起了争吵，也没有关于国家，家庭，宗教或政治，必须以任何方式或在任何肤色或为幌子，什么带来的内门的投诉；作为砖瓦匠，我们是最古老的天主教宗教，上述所提及的所有联合国后，广场上，水平和铅垂；一样，我们的前辈在不分年龄人人共享的我们有决心对政治争议，作为相反的和平与福利的投诉。

Auto Shot is an effect, and is not subject to the Global Cooldown that affects Spells like Hunter's Mark.

自动射击是个效果，并不受到猎人标记的公共CD影响。