查询词典 dynamical friction

The paper is based on the rupture-dynamical theory and DNV RP-F101 recommendatory method, through the study of three corrosion models, we have built up rational estimation model, adopted subentry safety coefficient method and allowed stress method to estimate the remaining strength of corrodent pipelines, and finally, introduced the Genetic Algorithms method to compute the reliability of corrodent pipelines, gaining the reliability index, and provided corresponding program.

本文以断裂力学理论为基础，以 DNV RP-F101 腐蚀管道评估的推荐作法为蓝本，通过对管道腐蚀损伤的三种腐蚀形式具体研究，建立了合理的评估计算模型，采用了分项安全系数法和许用应力法对腐蚀管道的剩余强度进行了失效压力的计算，最后较详细的介绍了遗传算法的基本理论，并把它应用到对腐蚀管道的进行可靠性评估中，得出其可靠性指标，并给出了相应的计算程序。

With the two-coupled SU(2) as the dynamical group of the system, the Hamiltonian is represented in the two-coupled SU(2)/U(1) coset space by coherent states.

本论文以量子系统的代数结构为依据，从相干态陪集表象表示出发，对乙炔分子弯曲振动系统高激发态的动力学性质进行了研究。

Vector analysis, Dyads, index notation, covariant and contravariant derivatives, Christoffel symbols, Riemann tensor, hydro-dynamical field equation.

张量及场方程式：三维向量，张量符号，张量微分，克里斯多夫符号，黎曼张量，流体动力场方程式。

The second is the study on the influence of dynamical effects in quantitative electron crystallography.

其二是对动力学效应在定量电子晶体学中的影响的研究。

Simulation and dynamical analysis are performed on the cubic non-linear transit packaging system under oscillatory surroundings in this paper.

对于立方非线性物品包装系统，许多学者研究了其在不同冲击波形下的跌落响应[1 3 ] 。

We construct a family of iterative mappings, which yield cyclic windows of variant size in the dynamical plane by incorporating cosine functions and non-linear angle variables with parameters. Chaotic attractors and filled-in Julia sets in the different cyclic windows are created by establishing the coordinates of any cyclic windows and the maximal window, then clarifying the relationship of corresponding points between these cyclic windows. The respective images in different windows are continuous but with individual structures.

该算法采用余弦函数及含参的非线性角度变量构造一族使动力平面上各周期窗口的尺度变化的迭代映射；通过计算任意周期窗口和最大周期窗口得出窗口间相应点之间的非线性对应关系，并构造出各周期窗口中的混沌吸引子和充满Julia集，其图案是连续的且结构不同的；选用不同的周期窗口作为基本计算区域，使之与正方形像素矩阵对应，并构造出基本图元，实现了用一个映射构造出多个平面排列图案的算法。

Based on these two methods, the study of the dynamics of DAE boils down to the study of dynamical systems.

根据这两种方法，DAE的动力学研究可以归结为动力系统的研究。

First of all, analyses of dynamical behavior of the problem under constant tensile dead load are carried out, and existence of the periodic solution of the cavity motion equation with various initial conditions is presented.

首先对给定的常值拉伸载荷作用的问题进行了动力学行为分析，并且指出了不同初始条件下的周期解的存在性。

A necessary and sufficient exponential stability theorem with respect to a constant decay degree for general nonlinear dynamical systems is presented.

首先给出了一般非线性动态系统的关于常衰减度的指数稳定性充分必要定理，接着探讨了新型指数稳定性定理在线性系统稳定性分析中的应用。

Dynamical control of decoherence induced by the environment in a two-level atom system is investigated.

研究了在二能级原子系统中有环境诱导的退相干的控制问题。

Panorama Many people are dancing in a large sitting room.

在一个大客厅里，许多人在跳舞。

We fully understand how a microwave oven cooks food, it is first necessary to talk ...

我们充分理解一个微波炉煮的食物，这是首先要谈。。。