分析动力学

Individuals with at least one risk factor of stroke were selected to receive a cerebral vascular hemodynamic index examination.

比较病例和对照组间脑血管血液动力学指标的差异，对研究因素进行单因素和多因素Logistic回归分析。

Therefore,in this thesis, by using of the Lyapunov function ,Lasalles in-variance principle and the analytical technique to construct return mappings[34-36],we describe some important properties of the dynamic behaviors of two class of discrete-time model of two-cell cellular neural networks ,which includes stability,asymptotic stability,the existence and attractability of periodic solutions.

因此，本学位论文利用Lyapunov函数和Lasalle不变集原理以及利用分析技巧构造回复映射等方法对两类二元离散细胞神经网络模型的动力学性态进行定性分析，讨论了这些模型的稳定性、渐近稳定性、周期解的存在吸引性，全文共分三章。

The kinetic model of consecutive reaction for chlorination of benzyl chloride has been built by analyzing the reaction mechanism and macroscopic stage.

通过对氯化苄光氯化反应机理和宏观状态的分析，建立了氯化苄氯化的连串反应动力学模型。

Therefore, both the theoretical research and the practical application, it is very necessary to establish the basic theory of non-linear dynamics of spiral bevel gears and hypoid gear drives.

对于齿轮系统动力学的研究，不但可以分析和预测齿轮系统的振动和噪声，而且反过来也对齿轮的设计和加工提出了新的要求。

Spine Biodynamics Vibration Finite element analysis Facet contact force

脊柱；生物动力学；振动；有限元分析；小关节接触力

A model of blank cartridge ejection device was established and the ejection and restoration processes described.

本文建立了采用气体驱动弹射—回收的抛放弹弹射机构的数值计算模型，用经典内弹道和气体动力学理论分析了火药弹燃烧、弹射活塞完全推离悬挂物并回缩到初始状态的整个过程。

According to the simulation results, dynamic performances of a bogie are analyzed in detail.

根据计算机仿真结果，对货车转向架的动力学性能进行了详细的分析。

The effect of the bogie suspension parameter s on the dynamics performance is analyzed and the bogie parameters are optimized.

分析了转向架悬挂参数对动力学性能的影响，并对转向架参数进行了优选。

A series of analysis and tests indicates that dynamic performance of this bogie is much superior than other types of freight wagon bogie.

通过一系列的分析和试验表明，该转向架的动力学性能明显优于现国内的几种货车转向架。

At last the paper build model of the effect of IT on BOR by system dynamics; analyze the effect of organization efficiency on business performance.

最后利用系统动力学构造了信息技术对企业组织再造的作用模型并对模型进行了讨论，分析了组织效率对企业绩效的影响。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失