结构稳定性

Keywords alkali metal;peroxide;structure of ionic;charge transfer effect.

碱金属；过氧化物；离子结构；电荷逸散效应；氧阴离子的稳定性

The influences of alkali concentration, temperature, polymer and additive on ionic conductivity and electrochemical stability were studied with orthogonal experiments and single factor experiments design, the relation of structure and ionic conductibility is researched by FIRT, XRD,DSC and SEM analysis ways.

结合正交设计实验和单因素实验研究了碱浓度、温度、聚合物以及增塑剂对固体电解质离子电导率、电化学稳定性的影响，用红外光谱、X衍射分析和差热分析等手段研究其结构与离子导电性能的关系，摸索出了本实验条件下的最优方案。

In this paper, we have studied the dimensional effects, electronic state, the configurations of charge density and spin density for quasi-one-dimensional organic ferromagnets. First, considering interchain interaction, the itineracy of electrons, the electron-electron correlation, electron-phonon interaction and spin correlation in low dimensional system, we proposed an interchain coupling theoretical model for conjugated system and non-conjugated system of organic polymer ferromagnets, respectively. Based on the theoretical model, we studied the electronic property, spin structure, the configuration of dimerization and the stability of the ferromagnetic state with a self-consistent iterative method.

首先我们在考虑准一维有机铁磁体的链间相互作用、电子的巡游性、强的电子-电子关联、电子-声子耦合、自旋关联等因素的基础上，分别对两种类型的有机高聚物铁磁体各自提出一个包含链间耦合的理论模型，用自洽迭代的数值计算方法对其电子性质、自旋结构、二聚化特征及铁磁态的稳定性进行了研究。

Static load model and Jacobin comparable matrixs structures features were analyzed ,the results showed that the Jacobin comparable matrix characteristic would be changed after considered the load character, which have an impact on the static voltage stability.

并分析两种负荷模型与潮流雅可比矩阵的结构和特点，研究表明计及负荷特性后将改变雅可比矩阵的特征值，从而影响了系统的静态电压稳定性。

Additionally, the stability of keto form has been further enhanced in the presence of the assisting molecules and solvation effects.

另外辅助分子和各种介质的溶剂效应均有利于酮式结构的稳定性，这与有关的研究吻合较好。

The structure of the eco-industry chains determines the key factor of stability and sustainability in the whole industrial eco-system of the EIPs.

生态产业链的结构是决定园区整个工业生态系统的稳定性和可持续性的关键因素。

The compensation of filter will leads to the lag of the phase angle, make circuit organization complicated, the selection of parameters difficult, and the precision and stability of analog device demanding.

补偿滤波器会带来相角的滞后，使电路结构复杂、参数选取困难、而且系统对模拟器件精度和稳定性要求高，难于在实际测角电路中应用。

The compensation of filter can lead to the lag of the phase angle, making circuit organization complicated ,the selection of parameters difficult, and the precision and stability of analog device demanding.

补偿滤波器会带来相角滞后，使电路结构复杂，参数选取困难，而且系统对模拟器件精度和稳定性要求高，难以在实际测角电路中应用。

A candidate for Liapunov function is found out based on the theory of energy.

基于Liapunov第二法，从系统的能量角度出发进行稳定性分析，找到控制系统的Liapunov函数，本着工程抗震设计中安全与经济的原则，应用允许结构反应进入非线性或塑性阶段的理论，判定所提出的混合控制方法具有Liapunov意义下的稳定

To weaken the influences of the position-dependent periodic disturbances and parameter uncertainties, the robust repetitive controller was designed, which associated structure singular value theory with the discrete-time repetitive control theory. The problem of robust repetitive control was transformed into one of H∞ optimal control using linear fractional transformation. The robust repetitive controller was achieved using D-K iteration procedure and made the servo system have stability, robustness and tracking performance.

为了削弱周期性扰动及参数变化不确定性的影响，将重复控制和结构奇异值理论相结合，利用线性分式变换(linear fractional transformation，LFT)将鲁棒重复控制问题转换成H∞最优控制问题，采用D-K迭代法设计鲁棒重复控制器(robust repetitive controller，RRC)，实现系统的稳定性和鲁棒性，提高系统的跟踪特性。

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。