稳定性

By means of center manifold method, this paper gives methods for judging stability of critical nonlinear systems. Moreover, it uncovers connections between results obtained form center manifold method and other methods.

本文采用中心流形方法，给出了非线性系统临界稳定性的判据，并且得出了用中心流形方法所获得的稳定性判据和用其他方法所获得的稳定性判据之间的关系。

The thermal stabilities of dithioesters, trithiocarbonates and xanthates were also compared,indicating that trithiocarbonates and xanthates are more stabile than dithioesters,while the chain transfer abilities of the latter are usually better than that of the former.So how to balance the chain transfer ability and the thermal stability of RAFT agents is a big challenge.

另外我们比较了双硫酯、三硫酯和磺原酸酯的热稳定性，发现后两者的热稳定性要远远好于前者，但前者的链转移能力一般要大于后两者，所以如何平衡链转移剂的链转移能力和其热稳定性之间的矛盾仍然是个很大的挑战。

The paper constructed the standard of strategic alliance stability from two aspects, which is configuration stability and income stability.

论文从战略联盟的结构稳定性和利益稳定性两个方面构建了战略联盟稳定性的标准。

The stability of the interface between two-layer fiber flow is essential for getting high quality multi-formation and layer purity. Some measures of keeping the stability of interface are got from theoretical analyse. The measures is close reducing the velocity difference between two layers; putting the fiber of lower density on the upper layer and the fiber of relatively higher density on the lower layer; and using low pulsation pump as the pumping equipment.

两层叠加流动的界面稳定性对多层成形的质量及层间纯度有重要影响，本文通过采用小扰动法对流动界面的稳定性分析认为，减小层间速度差；把密度较大的纸浆置于下层，密度较小的纸浆置于上层；以及采用低脉冲泵作为上浆泵均有利于保持层间流动界面的稳定性。

Introducing the method that analyzes the dynamic stability of airplanes in the aviation, the small perturbation non-dimensional linearized motional equations were develped in detail based on the small perturbation theory and quasi-constant assumption, the distinguishing rule and quality judgement criteria of dynamic stability are set up in this section.

引入航空中飞机运动稳定性方程的处理方法，运用小扰动理论，详细推导了HYSWAS的小扰动无因次线化运动方程及其特征方程，提出了HYSWAS运动稳定性判别准则以及运动稳定性品质的评判指标

The stability and bifurcation of a thin elastic rod under tension and twist are analyzed, and the results can be applied to determine the stability of a thin helical rod by use of the equivalent stiffness.

分析受拉扭弹性细杆的稳定性和分岔，且利用等效刚度概念将弹性杆的稳定性条件应用于对细长螺旋杆稳定性的判断。

LsEQ is the ability of landscape eco-system to maintain self-stability of structure and function.So,assessment standard of LsEQ is defined to be the stability of landscape eco-system which lies on the contrast of interior stabilization degree and exterior ecological disturbance degree of landscape eco-system.

景观生态质量是景观生态系统维持自身结构与功能稳定性的能力，因此，景观生态质量的衡量标准是景观生态系统的稳定性，其稳定性取决于景观生态系统的自身稳定程度与外部生态学干扰程度的对比。

Results: lResult of TLC: the granules compositions stability by TLC is stable and there is not any difference between the experiment result and stability control standard. 2Result of quantity control① Stress test make it certain that this granules ingredients have certain moisture stability, photo stability and temperature stability, this experiment also indicate that the medical using complex bag can improve the granules moisture stability.

结果：1、定性指标结果：在以上稳定性试验中，不同时间各定性鉴别指标TLC结果与0天TLC结果无差别。2、定量指标结果：①影响因素试验：该颗粒剂对湿度、光线、温度都具一定稳定性，药用复合膜包装能提高该制剂吸湿稳定性。

In order to improve firing stability of truck-mounted gun system , based on dynamic simulation and optimization method, stability optimization study of recoil and counter-recoil is performed.

为了提高车载火炮系统射击稳定性，基于动力学仿真和优化方法进行后坐稳定性和复进稳定性优化研究。

Obviousfeatures for semi-fluorinated surfactant syntheses of ordered mesoporous silicamaterials are as follows:(1) Tailorable pore size from 1.6 to 4.0 nm, estimatedby BJH and TEM methods;(2) pH value for synthetic system is extended toneutral condition;(3) Thicker porous walls, showing high hydrothermal andmechanical stability.

进一步的研究表明这些材料有以下特点：(1)根据N2吸附BJH计算方法和TEM的判断，孔径可以控制在 1.6 到 4.0nm之间；(2)合成体系的pH可以延伸到中性，而这在以往的报导中是很少见的；(3)较厚的孔壁，表现处很好的水热稳定性和机械稳定性，特别是JLU-14 比在相同条件下合成的SBA-15 和MCM-41 的机械稳定性要高很多；(4)非常大的表面积，例如JLU-1560的表面积高达

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。