查询词典 dynamical

The larger subharmonic component will be introduced into the system after the instability of system periodic motions, the motion of systems will be nonsynchronous precession and the amplitude of alternate stress in the rotor shaft is high. The long-term existence of instability will directly threaten the safe running of the rotor systems. Research on the influence of the change of system parameters on the system dynamical behaviors, the stability of system periodic solutions with the change of system rotational speed and the system motion after instability will have the theoretical and engineering-oriented significance for the long-term safe running of large-scale rotating machinery.

转子系统失稳后会产生较大的低频振动分量，系统运动出现非协调进动，系统转轴中会产生幅值很大的交变应力，转子失稳状态的存在直接影响系统的安全运行，因此研究转子系统自身参数的变化对系统动力稳定性的影响，研究系统周期解随工作转速的变化情况及其失稳后的运动规律，对大型旋转机械的安全稳定运行具有重要的理论意义和工程实用价值。

The orographic dynamical and thermodynamical effects and their influences on precipitation and cloud physics are analyzed in detail.

中国气象局，北京 100081

In the approach, the synchronization of the chaotic signals between the transmitter and receiver does not rely on the chaotic self-synchronization method proposed by Pecora and Carroll. The chaotic carrier is retrieved by using a non-dynamical system at the receiver which has the same nonlinear function form as what is adopted at the transmitter.

本方法中，收、发两端混沌信号的同步不是依赖于Pecora和Carroll提出的混沌自同步方法，而是在接收端采用一个与发送端具有相同非线性函数形式的非动力学系统从接收信号中提取混沌载波。

The experimental results show that the algorithm can expediently control the integral structures and local details of the fractal sets generated from complex dynamical systems when 12 perturbative and deformation parameters are interactively adjusted. The algorithm is simple, fast and easy to control.

实验结果表明，该算法通过扰动控制和变形控制共12个参数的引入，实现了对复动力系统分形集整体结构和局部细节的有效控制，且算法具有简单、快速和可控强的优点。

BBSF achieves the scatternet subnets merger using a tree-like but "not true tree"topology structure,and the scatternet merger control pithily and effectively.It provides a new design method of distributed dynamical net forming in multi-hop environment.

BBSF算法利用一种无环连通的&类树&的拓扑结构实现各个散列网子网之间的融合，从而对于散列网子网间的合并可以实现简洁有效的控制，在多跳环境下提供了一种新的分布式动态组网设计途径。

In this retrospective, the author looks at the field of stability and postcritical behavior of structures for which analysis needs a dynamical approach.

在本回顾性文章中，作者着重论述在结构的稳定性和超临界行为中需要采用动力学方法进行分析的问题。

Quad In this retrospective, the author looks at the field of stability and postcritical behavior of structures for which analysis needs a dynamical approach.

在本回顾性文章中，作者着重论述在结构的稳定性和超临界行为中需要采用动力学方法进行分析的问题。

The pyrolytic dynamical mechanical reaction and activation parameters of the samples during 500～800℃ were also discussed.

考察了该样品在此温度区间的热解动力学反应，对其活化参数进行了一定讨论。

The invention relates to a dynamic matrix control system of high-purity distillation, which comprises distillation tower, intelligent checker, DCS system, superior host, and on-site bus, while they are connected. The control system uses tower product group as the object variable, and the reflux ratio and reboil ratio as control variable; the superior receives history temperature and pressure data from the DCS real-time database, via the predict control and dynamic matrix controller, to obtain the output values of present controller as reflux ratio and reboil ratio, then feedback said two values to DCS system, to function the distillation object. The invention can confirm the high-purity stable operation, with better dynamical control.

本发明公开了一种高纯精馏的动态矩阵控制系统和方法；系统包括：精馏塔、智能检测仪表、DCS系统、上位机和现场总线；所述精馏塔、智能检测仪表、DCS系统和上位机通过现场总线依次相连，实现信息流的上传和下达；本发明所涉及的控制系统采用塔双端产品组分为被控变量，回流比和再沸比为对应的控制变量；上位机从DCS实时数据库中获得历史的温度、压力等数据，通过推断控制环节和动态矩阵控制器环节，得到当前控制器的输出值-回流比和再沸比，再把控制器输出值返回给DCS系统，实现了对高纯精馏过程的双端产品高纯控制，对双端组分的高纯度平稳操作，具有很好的动态品质和控制效果。

Using the discrete dynamical system determined by the stroboscopic map, we obtain an exact 1-periodic solution of the system which is with Ricker function and obtain the threshold conditions for its stability.

运用由频闪映射决定的离散动力系统，得到了具Ricker功能函数系统的精确1-周期解，并讨论了它在临界条件下的稳定性。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。