动力学的

The Computational Aerodynamics team has a world class reputation in the field of Computational Fluid Dynamics gained from over 30 years of experience developing and applying bespoke and commercial software to solve highly complex aerodynamic problems.

计算空气动力学的团队有一个世界级的声誉，在该领域的计算流体动力学的股票上涨，从30多年的经验，发展和应用定制软件和商业软件，以解决高度复杂的气动问题。

Based on the above conclusions, we introduce Systemic Dynamics into the analysis of Bullwhip Effect.

在上述分析的基础之上，将系统动力学的原理用于对长鞭效应的分析之中，先画出相应的系统流程图，然后建立了一个简单的库存管理系统的动力学仿真模型。

From the points of view of hydrokinetics, put forward the formula for movement parameters of set-out stage and short-range stage, lay a solid foundation for the theory of hydrokinetics mechanisms of large highspeed rockslide, offer the theoretical proof for the reconnaissance and design of large hydraulic power project, railway and highway, gain the ends of preventing and decreasing the disastes.

在试验研究的基础上，从流体动力学的观点出发提出了大型高速岩质滑坡启程和近程活动阶段运动参数的计算公式，为大型高速岩质滑坡全程流体动力学机理理论的建立奠定了良好的基础，为大型水电工程的勘察设计和铁路、公路新线勘察设计提供理论依据，达到防灾减灾的目的。

To develop Linear Fractional Transformation model based on quasi-linear model for ground-to-air missile, state transformation method was used to establish quasi-Linear Parameter Varying model for missile longitudinal short-period dynamics by changing missile states along with an equilibrium trajectory decided by time-varying parameters. Based on the obtained quasi-LPV model, the LFT model of the missile was developed by use of MATLAB functions, and the missile dynamics were explicitly separated into certainty part and time-varying parameter part.

为了建立基于准线性化模型的地空导弹线性分式变换模型，采用状态替换方法将导弹的状态沿着一条由时变参数决定的平衡点轨迹进行变换，建立了纵向短周期动力学的准线性参数时变模型；基于所建立的准LPV模型，采用MATLAB函数建立了导弹的LFT模型，将导弹动力学明确描述为确定性部分和时变参数部分。

This paper analyze the advantages and disadvantages of the existing Ad Hoc network routing algorithms, and chose a compromise ideas of algorithms to make a thorough research from the perspective of complex adaptive systems theory, and also use the perspective of network dynamics: the network is not only determined by the topological but also the dynamics flow of information or of traffic.

本文分析了Ad Hoc网络现有的几种分簇路由算法的优缺点，权衡利弊，选择了具有折衷思想的按需加权路由算法，从复杂自适应系统理论角度进行了进一步的研究，应用网络动力学的观点：网络不仅由拓扑确定，而且由发生在连接上的信息流或交通流的动力学确定。

Several types of crack problems on fracture dynamics of composite materialsare studied in this paper, a...

本文着重研究了复合材料的断裂动力学的若干类型裂纹问题，并建立了相关的扩展裂纹的动力学模型。

Many complicated phenomena existing in the fields of system forestry and system forest have been analyzed Especially from the view of modern forestry and non-linear dynamics, the dynamical mechanism that complicated phenomena could be produced has concisely been discussed And further their research methods that should be intercrossed with modern non-linear science are discussed All these should be of importance for constructing and perfecting the subjects of modern forest engineering

特别从现代林业工程系统和非线性动力学的角度，简要分析了复杂现象出现的内在动力学机理，并在研究方法上就如何和现代非线性科学结合，作了一些讨论，对于在系统林学、系统森林学的基础上，建设现代林业工程学具有一定的意义。

objective to observe the protective effect of qiliqiangxin capsule in rabbit heart ventricle reconstitution of chronic heart failure.methods using the method of giving rabbit abdomen aorta half ligations to build the chronic heart failure model to observe qiliqiangxin capsule the effect to blood flow mechanics index,room wall thickness,heart exponent and heart ventricle reconstitution biochemistry index.results qiliqiangxin capsule could reduce effectively bp,lvsp,lvedp,t wave,improve room wall thickness and heart exponent,reduce angii and alt,all the paramenters ahd notable difference,composed to those of model group (p＜0.05,p＜0.01).conclusion qiliqiangxin capsule can improve the blood flow mechanics change of chronic heart failure rabbit,which has notable inhibitory action on heart ventricle reconstitution which originate from chronic heart failure.inhibition of ang ii,alt of immune nerve endocrine system may be a mechanism of qiliqiangxin capsule.

观察血流动力学、标志心室重构的室壁厚度及心脏指数及肾素―血管紧张素―醛固酮系统相关生化指标的变化。结果芪苈强心胶囊可有效降低血压、左室压、左室末期舒张压、t波，改善室壁厚度和心脏指数，降低血清血管紧张素ii及醛固酮水平，与模型组比较均有显著性差异(p＜0.05，p＜0.01)。结论芪苈强心胶囊可改善慢性心力衰竭兔血流动力学的变化，对慢性心力衰竭引起的心室重构具有显著抑制作用，其机制可能与该药发挥抑制神经内分泌免疫系统rass中angii、ald的水平有关。

However, when AV interval was shorter than 80 msec and longer than 180msec, there was reduction of LVOTG, yet the CO was also reduced. The results showed that the hemodynamic improvement must depended on the state of pre-excitation of ventricle as well as the optimal left ventricular filling.

且在AV间期为100至120毫秒时出现最佳血液动力学效应，而AV间期在小于80毫秒、大于180毫秒时，虽有左室流出道压力阶差的降低，但心输出量均有下降，提示血液动力学的改善必须依赖右心室的提前激动状态及最佳的左心室充盈。

The three-dimensional models are successfully imported to ADAMS software through the special interface MECH/PRO, and then the virtual prototype models are founded by toolbox of ADAMS to apply forces and constraints to the parts of the models. The dynamic simulation of the multi-rigid-body rifle model is carried out under the condition of the single shoot by the low firing frequency, high firing frequency and superhigh firing frequency when the rifle model is fixed on the ground, then the dynamic simulation of the multi-rigid-body man-weapon system is operated under the conditions of single and repeating shoots.

通过Pro／E和ADAMS的接口MECH／PRO将三维实体模型顺利导入ADAMS中，并对高频点射步枪和人枪系统施加约束和力，建立高频点射步枪和人枪系统的虚拟样机模型，并且对高频点射步枪及人枪系统进行了较为系统的多刚体系统动力学分析和研究，分别对高频点射步枪固定状态下次高频、高频和超高频点射过程进行了多刚体系统动力学的仿真，在此基础上对高频点射步枪人枪系统点射和连发进行了仿真。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。