临界值

It is shown that the mechanical properties including Young's modulus, tensile strength, critical strain and stress under buckling can be enhanced with the decreasing of intershell spacing. The shear strength can be enhanced by 2-3 orders of magnitude when the intershell spacing is reduced to 20%, which is also dependent on commensuration. Zigzag-type carbon nanotubes have higher shear strength. The axial stress in tubes when the load transferring from outmost tube to inner tube is observed as well.

研究了单壁纳米管束横截面的六方化失稳现象，给出各种管径的面内压力－应变关系曲线；每条曲线都给出一个明显的拐点而且有很强的非线性；线弹性模量与参考构形有关，也受管直径的影响；分析了管束横截面的晶格不稳定性特征，表明晶格的缺陷能够明显的减小临界值；模拟了在不同应变下纳米管束对静水压的反应，发现不同压力下的截面形态不同，在很高压力下相邻管之间会形成化学键。

By using Floquet theory, Comparison theorem of impulsivedifferential equation and analytic method, we investigate the dynamics of thesystem in detail.

通过利用脉冲微分方程的Floquet理论和比较原理，证明了当脉冲周期小于某个临界值时，系统存在一个全局渐近稳定的害虫根除周期解，最后给出了系统持续生存的条件。3。

With the soap member as the representative of amphiphilic molecule ,this paper analysizes amphiphilic molecule from the self-assembly process,gives micelle the formative critical density formula studies amphiphilic molecule LCD of the member formations and gets two conditional conclusions of density and temperature.

以肥皂分子为代表的两亲分子的团聚程度和浓度有关，当两亲分子浓度达到某一临界值时，就会形成胶束。

The instability originated in the upper R_B-like convection zone develops to larger region with the increase of Grashof number, and the number of non-axi-symmetric circulations decreases. When Grashof number exceeds another critical value, cooling air may invade the cavity and flow toward the shroud, the circulations decrease to one pair occupying the whole cavity in radial, thus these two zones are merged into one. The core structures in the cavity rotate against the disks, while the structures keep no change at the case of periodic oscillatory flow. With the Grashof number rises, the flow undergoes stable, periodic, periodic with cool air invading, quasi-periodic and ultimately to chaos.

离心浮升力是造成非等温轴向通流旋转盘腔内流动不稳定的主要因素，而哥氏力的存在加剧了流动不稳定性，导致流场失稳提前发生，而且在哥氏力的作用下流线发生偏转，盘腔内r-θ面出现了旋向相反的对涡，流动结构更加复杂化；随离心浮升力的继续增加，r-θ面的对涡减少，当其超过某一临界值后部分冷流体侵入盘腔，对涡减少至一对，而且沿径向充满整个盘腔；此后随离心浮升力的增加对涡的数量不再变化；r-θ面的对涡相对于盘面周向移动，但是形状基本保持不变。

Innovativeink accept water on the critical value of 16% to 26%.

油不朱剥夺火的临界值在16%～26%。

High-profile section and darkened part of the best critical value from business card printing and membership card-making machine.

高调部分和暗调部分的最佳临界值随不同的制卡和会员卡制作机而不同。

Added that the issue should not be too big, hemoglobin is also a critical value.

看了你的问题补充，问题应该不是太大，血红蛋白也是个临界值。

The paper will study critical value of financial supportive excess and degree of financial support in China at last.

本文最后利用文中所确定的衡量金融支持过度临界值，对我国房地产金融支持程度进行了实证分析。

From the simulation of this model on the computer, the authors find that there is a critical value.

通过构建包含这两个因素的信息传播模型，并在计算机上模拟，得出如下结论：首先，存在信息传播临界值。

Since n-k-1=404, we use the standard normal critical value.

由于n-k-1=404，我们使用标准正态的临界值。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷