稳定性条件

Using the new comparative method, the variation of constants formula, M-matrix theory, integral differential inequality, new theoretical results on global exponential stability of neural networks with bounded time-varying delays and Lipschitz continuous activation functions have been obtained.

利用新的比较方法的思想，改进了一维线性和非线性纯时滞微分系统的3/2稳定性定理，推广了Yorke条件到具两个时滞项的情形，将Yorke等人的3/2稳定性定理推广到具两个时滞项的线性和非线性纯时滞微分系统，进一步还推广到N维纯时滞微分系统，为纯时滞神经网络的研究打下理论基础。

The versal unfolding theorem obtained in this paper by using DA-algebras tools introduced by Damon not only includes many corresponding results but also cancels the stronger demand on the codimension of a bifurcation Problem in some of relevant references to establish more general unfolding theory.

本文第二章进一步研究在(来源：AB00c6C论文网www.abclunwen.com)接触等价群作用下上述等变分歧参数及其开折的稳定性问题，得到了这类分歧问题是稳定的等价于它是无穷小稳定的结论，并且用横截性条件刻画了这类分歧问题的稳定性。

The cyanin of Acer ginnala had low light and heat stability.It could hold the cyanin stability under low temperature and dark condition.

茶条槭的花色素苷表现出光、热稳定性差的明显特征，低温和黑暗条件能较好地保持花色素苷的稳定性。

In this paper,we compared the photodegradation efficiency of nano-titania films by using dichloroacetic acid,rhodamine B and methyl orange as the photocatalytic referents and the ultraviolet lamp as the source light to generate the photocatalytic reaction.

针对纳米氧化钛光催化性能研究中缺乏统一有效表征标准的现状，比较了二氯乙酸、罗丹明B和甲基橙三种光催化活性评价物的热稳定性和对紫外光的稳定性，并以氧化钛纳米薄膜为光催化剂，研究了三种评价物的光催化降解效率表征，以及酸碱度、通氧条件等因素对评价物在光催化活性表征中的影响及其机理，归纳了三种评价物对于纳米氧化钛光催化活性表征的优缺点。

In this paper,we establish Lyapunov Direct and Feedback Linearization two methods to analyze stability of Duffing systems which belongs to nonlinear systems.

首先，本文对给定的模型进行适当的变形后，构造出相应的Lyapunov函数，通过确定一定的条件，使其满足Lyapunov第二方法渐近稳定性定理，从而使系统具有稳定性。

Products have good thermal stability anddecomposition temperature above 200℃; Selected lauryl amine as a case, then optimizedthe synthesis conditions by orthometric trial, and obtained the best synthesis technichs: themolar ratio of 1: 2.1, the reaction temperature was controlled at 80℃and the reaction timeof 16 h, reaction to the solvent n-propanol.

并对其热稳定性进行了分析，合成产物具有较好的热稳定性，分解温度都在200℃以上；以十二胺为例，用正交实验法优化合成条件，获得最佳合成工艺为：摩尔配比为1：2.1，反应温度控制在80℃，反应时间为16h，反应所用的溶剂为正丙醇。

After referencing the specification of the national standard GB/ T11648-89, according to the petroleum industry condition, the torsional vibration, pendular vibration, exciting force self-synchronizing and stability of synchronizing,the stability of vibrate synch ronous transmission of two and more long vibration motors are tested. All of above testing parameters will replenish the blank of both product development and quality test measure of this type of motors both here and abroad.

参阅国家标准GB／T11648-89的技术要求，并针对石油现场的实际条件，本课题对两台和多台隔爆长形振动电机的扭振、摆振、激振力大小，自同步性和同步状态稳定性，振动同步传动稳定性等技术参数进行了模拟动态测试，而这些新增设技术参数的测试均是填补国内外此种新型电机产品研制开发和质量检验测试的技术空白。

This paper dealt with the best condition of extraction pigment from the skin of pitaya ,the extractive stability,and the influences of various additives to the stability of extractive.

研究了火龙果果皮色素提取的最佳条件、提取液的稳定性和各种添加剂对提取液稳定性的影响。

Meanwhile,we have observed the effect 3 ABSTRACT of different suspension aid on suspensions,made sure that PVP should be the suspension aid and detected the effects of different process of preparing suspensions,different batches,various concentrations of PVP and temperatures on the stability of suspensions by freezing-heating circulation test,observing samples under combient temperature and rheometry test.

同时，在纳米炭混悬液的制备和稳定性研究中，考察了不同助悬剂对混悬效果的影响，确定聚乙烯吡咯烷酮作为助悬剂，并考察了离心加速条件下制备混悬液工艺、批号、PVP浓度及温度等因素对混悬液稳定性的影响，进行了冷冻-加热循环实验、室温下留样观察实验及流变性实验。

Compared with the unactivated P polyelectrolyte film, the activated form P/PMMA polyelectrolyte film obtained by adopting the technology of the invention has better absorbency, room-temperature conductivity, electrochemical stability and the interface stability of electrolyte and lithium electrode; the performance of a lithium secondary battery prepared by using activated electrolyte is obviously better than the performance of the lithium secondary battery prepared by using the unactivated polyelectrolyte; the invention has simple technology, short reaction time, and convenient and easy condition for technologized production.

采用本发明技术获得的活化型P/PMMA聚合物电解质薄膜相比未活化的P聚合物电解质膜，有更好的吸液性和室温电导率，更好的电化学稳定性及电解质和锂电极的界面稳定性；用活化后的电解质制备的锂二次电池性能明显好于未活化聚合物电解质制备的锂二次电池；本发明工艺简单，反应时间短，为工艺化生产提供了简便易行的条件。

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。