thermal motion

A large number of random motion of molecules called thermal motion .

大量分子的无规则运动称为热运动。

A Teaching Study on the Three Statistical Velocity for Thermal Motion of Air Molecule

气体分子热运动三种统计速率的教学研究

A derivation of the atmospheric pressure formula about dry air by thermal motion theory

干燥空气大气压公式的热学推导

The thermal motion analysis method needs the least parameters , but the results are greatly affected by the system noise .

热运动分析法所需要的参数少，但是受到系统噪声影响较大；

Influence of thermal motion of particles on life-time measure ments

粒子热运动对寿命测量的影响

In this sense , we can say that the atomic thermal motion is the most noteworthy natural process .

在这种意义上可以说原子的热运动是最值得关注的自然过程。

The vibrations which constitute a wave in a gas superposed on the random thermal motion .

气体中形成波的振动叠加在这种无规则热运动上。

In this paper , a simple method is concerned with theoretical calculation on the three statistical velocity for thermal motion of air molecule .

用简单方法推导了气体分子热运动的三种统计速率公式。

Moreover , since the atoms are in random thermal motion the frequency spectrum will be altered by the Doppler effect .

而且，由于原子是在作无规则热运动，多普勒效应也会使频谱发生改变。

This paper assumes : ( 1 ) micro particles with a certain speed , moving like thermal motion , are distributed in pure space ;

假设（1）空间中分布着以一定速度，做类似分子热运动的的微粒子；

Fluid is a discrete system composed of a large number of particles and each particle does irregular thermal motion . They exchange momentum and energy by frequent collisions among the particles .

流体是由大量粒子组成的离散系统，每个粒子作无规则的热运动，并且粒子之间通过频繁的相互碰撞交换动量和能量。

The added virtual mass coefficient of the thermal motion is found to be approximately 1 . The aspect ratio for the kidney shaped thermal is found to be around 1.45 for self similar phase .

热泡流的附加等效质量系数近乎1，自相似阶段热泡的宽高比约为1.45。

By using Monte-Carlo numerical modeling method , the influence of the insufficient bandwidth of the acquisition system on the displacement measurement and the stiffness calibration using the thermal motion analysis method is studied in the time domain .

通过使用Monte-Carlo数值模拟方法，我们从时域的角度研究了不同的实验条件下，采集系统曝光时间的有限长度（或带宽不足）给位置测量和使用热运动分析法进行刚度标定带来的影响。

The flow velocity got by traditional molecular dynamics method is the average value of bulk flow velocity and the molecules ' thermal motion over time . This method only can apply in the case of high speed flow problems .

传统的分子动力学方法是把流速与，分子热运动速度之和在一个长时间段上取平均值，这种方法只在流速相当大的情况下适用。

For low speed flow problems , because of the highly nonlinear coupling of the low bulk flow velocity and the high velocity of molecules ' thermal motion , and usually over-estimate the true flow velocity in such cases and lose its authenticity .

对于低速流动问题，由于较低的流动速度和较高的分子热运动速度的非线性耦合，流体的流速被大大地高估，失去其真实性。

Considering the random thermal motion in the fabrication process , we applied the single-atom statistical model and combined with molecular dynamics simulations and first-principle calculation , to carefully analyze several important steps in the fabrication process and gave the relative experimental conditions .

考虑到在制备过程中热运动的随机性，我们应用单原子统计模型并结合分子动力学模拟及第一性原理计算细致地分析了制备过程中的几个重要步骤并给出了相关的实验条件。

The method is based on the kinetic theory of gas molecules , which assumes that the gas molecules do irregular thermal motion , and obtains the whole motion of the diffusion of gas by simulating a large number of random motion of molecules .

由于该方法借鉴气体分子动理论，假定烟雾粒子做一定规则的扩散运动，通过模拟大量粒子的运动来获得扩散气体的整体运动规律，因此具有模型简单直观，过程真实可靠的特性。

A competition between the photoinduced reorientation and the thermal random motion is employed to explain this temperature dependence .

一种竞争机制被用来解释这一温度依赖特性，即在双折射形成的过程中，存在着光致取向和随机热运动之间的竞争。

The thermal turbulence motion and the air density variation are governed by the complete Navier Stokes equations , so that the variety factors could be in consideration .

激光加热引起的气流扰动及气体介质密度变化采用完全的Navierstokes方程描述，以便考虑各种不同因素的影响。

The atomic processes of electron impact ionization and elastic scattering by plasma ions are included . The thermal and streaming motion of the ions along the magnetic field is also taken into consideration .

考虑了氦原子被电子碰撞电离，氦原子与等离子体离子之间的弹性散射等原子过程以及离子的热运动和沿磁力线的流动。

Thermal simulation on meniscus motion in the continuous casting with multi-electromagnetic field

复合电磁场作用下连铸金属液弯月面运动规律的热模拟研究

Results show that the thermal effect of plate motion driven mantle flow and its contribution to the observed heat flow is greater than that due to internal density anomaly ( tomography based ) .

结果表明，与地幔内部密度异常产生的热效应相比，运动的板块及其激发的地幔流动在全球地表观测热流的产生和分布特征上起着更为重要的作用。

The grain size , temperature and strain-rate dependence of the yield strength of silicon steel under dislocation slip mechanism is obtained by experimental measurements , and the result is interpreted by the theory of thermal activation of dislocation motion .

从实验结果总结出了硅钢在滑移机制下的屈服强度与晶粒尺寸、温度和应变速率的关系，并用位错运动的热激活理论进行了解释。