查询词典 stochastic

The current sensitivity probability density function of energetic materials was deduced based on Frank-Kamenetskii parameter and resistance supposing as stochastic variable of normal distribution, by the application of the probability density formula of function in two random variables.

将Frank-Kamenetskii参数和电阻假设为正态分布的随机变量，应用二维随机变量函数的概率密度公式，推导出了含能材料电流点火感度的概率密度函数。

Genetic algorithms are a class of stochastic search methods based on Darwinian models of natural selection and evolution.

遗传算法是一种借鉴生物界自然选择和自然遗传机制的随机搜索算法。

This paper adopts stochastic finite element theory,introduces definability analysis,deals with undefined parameters obviously,and switches the idea of automobile body analysis from definability to authenticity.

利用随机有限元理论，引入确定性分析方法，显示处理不定参数，实现汽车车身的分析思想从确定性分析向真实性分析的转

The stability of composite θ-method for stochastic differential delay equation was studied.

摘要研究了随机延迟微分方程复合θ-方法的稳定性。

T-stability of the Euler-Maruyama method was studied for stochastic delay differential equation of neutral type.

研究了中立型随机延迟微分方程Euler-Maruyama方法的T-稳定性。

The stochastic nature of nucleation process as well as the deterministic of dendrite growth is considered to simulate the crystal growth.

在模拟晶粒生长过程中考虑了形核过程的随机性与晶粒生长的确定性。

Chaos is a kind of quasi-stochastic behaviors of determinate nonlinear system.

混沌现象是确定性非线性系统表现出的一种类随机行为。

Many investigations show that randomicity of structures?parameter will bring large value of stochastic dynamic response of structures. Randomicity of structures?mechanics parameter may be dominant factors. Therefore, introduction of randomicity into system model of structure and using random system model are more reasonable than that of determinate system model. The work in this dissertation mainly consists of two parts.

众多的研究工作表明，结构参数的随机变异性可以引起结构随机动力响应的大幅度涨落，结构力学参数的随机性还可能成为主导因素，在结构系统模型中引入随机性的概念，采用随机结构系统模型是较确定性结构系统模型更为合理的一种选择。

Many investigations show that randomicity of structures'parameter will bring large value of stochastic dynamic response of structures. Randomicity of structures'mechanics parameter may be dominant factors. Therefore, introduction of randomicity into system model of structure and using random system model are more reasonable than that of determinate system model.

众多的研究工作表明，结构参数的随机变异性可以引起结构随机动力响应的大幅度涨落，结构力学参数的随机性还可能成为主导因素，在结构系统模型中引入随机性的概念，采用随机结构系统模型是较确定性结构系统模型更为合理的一种选择。

The 21st century is a century of life science,the mathematical biology advanced rapidly, and the study in determinate system is perfect. In face,the species ecology systems are often subject to ,some uncertain factors,white noise,whether the presence of such noise affects these results that we have obtained has received exten sive attention ,which makes the study about stochastic system more and more important.

21世纪是生命科学的世纪，生物数学的发展突飞猛进，百花争妍，其中对确定性系统的研究已经较为完善，而实际上的种群系统常受到一些不确定性因素的干扰，即白噪声的干扰，研究白噪声的存在是否影响种群生态系统以及是否使原有的结果发生变化已受到广泛的关注，这就使对随机系统的研究显得尤为重要。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。