动力学

Dokshitzer-Gribov-Lipatov-Altarelli-Parisi equation is a standard evolution equation of partons in nucleon.

中文题名QCD演化方程中高扭度效应的研究副题名外文题名论文作者阮建红导师厉光烈研究员学科专业理论物理研究领域\研究方向学位级别博士学位授予单位中国科学院高能物理研究所学位授予日期2001 论文页码总数92页关键词量子色动力学高扭度效应馆藏号BSLW /2003 /O572 /19 描述核子中部分子演化的标准动力学方程是Dokshitzer-Gribov-Lipatov-Altarelli-Parisi演化方程。

Using the Second Lagrangian kinetics,the dynamic features of the robot are analysed,the generated driving torque of the arms is derived,and its dynamical models are set up.The sliding-mode fuzzy control is adopted by of the MJR120 palletizer,and the numerical simulation shows that the control method is efficient.

本文经过对该机器人进行的详细动力学分析，确定了系统的广义驱动力，运用第二类拉格朗日方程建立了系统的动力学模型；对MJR120 码垛机器人在控制上采用了滑模模糊控制技术，通过仿真实验表明了该控制方法对MJR120码垛机器人进行控制的有效性。

Based on Wavelet Packet Analysis and Smoothed Pseudo Wigner-Ville Distribution, the experiment data is time-frequency analyzed. The experimental results indicate that the amplitude of the laser-induced acoustic waves increases with the laser energy; the frequency coverage is from 0 to 150 KHz, and in the meantime there is a peak located at about 25 KHz. In addition, the spectrum and the peak of frequency are basically stable in spite of the change of laser energy and target texture.

从基本的空泡动力学理论出发，推导了空泡各特征参量之间的关系，进而对空泡动力学模型进行了修正；采用有限差分法对空泡脉动进行数值模拟，得到了空泡脉动特性随液体粘性、空泡含气量、表面张力以及可压缩性的变化规律；实验上采用光偏转测试装置探测了激光空泡脉动以及空泡溃灭的细节过程，进而分析了液体粘性和作用激光能量对空泡脉动周期、泡半径及泡能等特征参数的影响。

Second, we presented a dynamic model of a one-dimensional granular gas with quasi Gaussian size distribution, in which the rods are thermalized by a viscosity heat bath.

本文研究的重点在于建立均匀驱动的复杂颗粒系统的动力学模型，研究颗粒粒径分布的不均匀性对系统的动力学特征的影响。

This paper studied and discussed the marketing regulation system of sheep farming and spinning wool production by the System Dynamics with Grey System Method .

农业系统工程；市场调节系统；系统动力学模拟；本文探讨了系统动力学与灰色系统方法在养羊业、毛纺工业市场调节系统中的应用。

The on-line reaction kinetics of RIM polymerization of PU/VER SINs has been monitored by using a mini-RIM machine interfaced with FTIR During the course of synthesis, the two pairs of reactants interfere with each other in PU/VERA SIN system, although they follow different polymerization mechanisms and the possibility of inter-component chemical binding may be neglected (secondary hydroxyl groups of VERA capped).

在对机械搅拌混合物料PU／VER SIN体系进行了DSC、FTIR聚合反应动力学研究的基础上，本文首次利用第一台国产微型RIM机成功地实现了RIM PU/VER SIN体系合成时的FTIR在线聚合反应动力学测量。虽然PU、VERA网络的生成遵循不同的聚合反应机理（逐步缩聚反应、自由基共聚反应），并且两网络间的化学键合作用可以忽略（VERA为封闭仲羟基的VER），但合成PU/VERA SIN时两组份的相互作用不容忽视，两网络的生成速率均低于同样温度下纯网络的生成速率。

The adsorption kinetic was found following the second-order reaction, and the Langmuir isothermal equation can be well-fitted.

动力学实验结果吻合二阶动力学模式，等温吸附模式较符合Langmuir。

According to the rotor dynamics theory,the vortex mechanism and rule of the rotor are closely related to the collision and friction interaction.

根据转子动力学理论，转子的涡动机理及规律与碰摩作用密切相关，考虑下部钻柱与井壁之间是否发生碰摩作用，应用转子动力学理论建立了2个下部钻柱涡动分析模型，探讨了下部钻柱涡动机理及规律。

The result will provide afundamental basis for industrial design.Firstly,based on the assumptions that the reaction generating mono-ester was controlled by the solution rate of pentaerythritol,that di-ester conversed to tri-ester rapidly and that all the reverse reactions and side reactions were omitted,the equations of reaction kinetics were obtained.

具体工作如下：(1)基于生成一酯的反应受季戊四醇溶解速率控制、二酯迅速转化为三酯和忽略所有逆反应及其它副反应的假设基础上，建立了酯交换反应的反应动力学方程，获得了不同温度下的动力学常数和速率常数的指前因子及活化能。

In order to study the dynamic characteristics of the locomotive driving system at high speed, A dynamic model of the universal transmission shaft was made and differential equations were formulated by means of Roberson Witternberg method.

为了研究转向架传动系统在高速运行时的动力学特性，文中以万向传动轴为对象，利用R－W方法建立了系统的力学模型和动力学微分方程。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。