参量

The result shows that two atoms entanglement evolution property is opposed to atom-field entanglement evolution property when the coherent amplitude factor was zero or small. The interaction of the atoms and the field weaken the entanglement degree of atom-atom.

结果表明：当相干态振幅参量为零或很小时，两原子间纠缠度随时间演化规律和场-原子纠缠度随时间演化规律几乎相反，场-原子间的纠缠削弱了两原子间的纠缠。

First, use OTSU method to make license plate image binarization, and then use genetic algorithm to map the entire license plate matching search feature. With a fitness function formed by the area character vector, the optimal locating parameter of the plate area was found.

先用最大类间方差法对车牌图像进行二值化，然后利用遗传算法对全图进行车牌特征匹配搜索，结合区域特征向量构造的适应度函数，最终找到车牌区域的最佳定位参量。

Choosing the material model and the algorithm,three dimensional numerical simulation of anticartridge effect for certain aluminum alloy was realized and the parameter variation was demonstrated during the armor-piercing process.

通过选择合适的材料模型和算法，直观地演示了整个穿甲过程中各参量的变化，较好地实现了某型铝合金抗弹效应的三维数值模拟。

Barium nitrate crystal was grown by the aqua-solution cooling method with the length of 48 mm long.

对外置喇曼腔实验装置和运转参量进行了优化，喇曼振荡腔由对二阶斯托克斯光有最优化反射率的腔镜构成，对实验中所得到的二阶斯托克斯喇曼激光脉宽压缩及出现双尖峰的现象进行了分析。

There exists a maximum for the amplification of high-power Stokes beam which is restricted by the energy of pump beam, the absorption coefficient of medium and the length of medium cell, etc.

通过优化介质池长和介质吸收系数等参量可以提高斯托克斯光放大的最大值，并获得较高的能量提取效率。

We use continuous wave laser beam to pump nonlinear crystals and successfully prepared two-photon polarization entangled states with high brightness and entanglement degree.

我们利用连续波激光束泵浦非线性晶体的自发参量下转换过程制备出了双光子偏振纠缠态，其纠缠源亮度和纠缠度都接近于国际上同类研究的领光水平。

The pulse shortening technique, threshold behavior as well as beam divergence is investigated. The relation of SBS threshold and focus parameters are analyzed theoretically.

文中对SBS的脉冲压缩特性、阈值特性，以及发散角的减小都进行了较为详尽的研究，并从理论上阐明了SBS阈值和聚焦参量的关系。

The thermokintics of nucleophilic substitution reactionsof benzoyl chloride and oxidation reaction of isopropanol by NBS have been studiedby using the mathematical models of the thermokinetic time-parameter method forsimple and consecutive first order reaction, respectively. The kinetic mechanisms ofstudied reactions have been discussed reasonably.

利用简单和连续一级反应的时间参量法的数学模型，分别研究了苯甲酰氯亲核取代反应和NBS氧化异丙醇反应的热动力学，对反应的机理进行了合理的解释和讨论。

Therefore, the cathode current density can be selected as a governing process parameter for the deposition of TiN coatings.

因此，本文提出在适当条件下，可以用阴极电流密度作为调控PCVD过程的主要工艺参量。

The major advantage of PFC2D is the evolution regularity of microscopic fabric parameters including co-ordination number, contact normal, normal contact force, shear contact force, can be achieved together with the macroscopic liquefaction response. The micromechanism of sand liquefaction is further discussed.

颗粒流数值模拟的优点在于得到试样液化宏观力学表现的同时，通过不同循环加荷时刻试样内细观组构参量（包括配位数、接触法向分布、粒间法向接触力、粒间切向接触力）的演化规律，分析砂土液化过程中细观组构变化与宏观力学响应之间的内在联系，从而可进一步探讨砂土液化的细观力学机制。

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。