失稳

For each potential instability mode,a critical point on the boundary of the security region was found,in which the normal vector was used to form the hyperplane to simulate the boundary of the s.

对每一种潜在的失稳模式，搜索其动态安全域边界上的一个点，根据临界点处的法向来求解用于模拟动态安全域边界的超平面。

In this thesis,the voltage stability boundary is the combined boundary which correspond to Saddle-node bifurcations and Hopf bifurcations.The closest Hopf bifurcation point is found through the proposed iterative method under the assumption that the Hopf hypersurface is continuous and convex.

因此在本论文中，在多维参数空间下，将稳定边界推广到鞍点和Hopf分岔点构成的混合稳定边界，探索性寻求Hopf分岔超平面的法向量，采用迭代算法求取系统发生最近振荡型电压失稳的负荷增长方式。

Since the Three Gorges reservoir began to impound in 2003, reservoir water table will fluctuate from altitude of 175 m to 145 m.

三峡水库蓄水后，库水位将在 14 5～ 175m范围内波动，动水压力和水的软化作用是滑坡失稳的主要因素。

After the first impoundment in June 2003,many landslides occurred or were reactivated.

在2003年6月第一次蓄水至高程135 m以后，发生了大量的滑坡复活及失稳现象。

The result shows that the vulnerably geological structure of landslide body, concentrated rainfall and reservoir impoundment caused this landslide.

在内部条件具备的前提下，滑坡发生前的连续降雨及水库蓄水均使得坡体物质的力学强度降低，故引发了大规模的滑坡失稳。

After the structure was optimized, the intensity utilization coefficient of horizontally side-post, arch steel tube and mid-post increased 18%, 3%and 25%respectively, the vertically side-post which was utilized insecurely and insatiably utilized securely, stably, and reasonably, and steel of main body was saved about 3.7%.

优化设计后的连栋塑料温室，其横边柱、拱架和中柱的强度利用率分别提高了18%、3%和 25%，纵边柱由非安全失稳利用转向稳定安全性合理利用，主体结构节省钢材3.7%。

Results of this paper lay a good foundation for the dynamic instability study of this kind of structure.

本文的计算结果为此类结构系统的动力失稳研究奠定了基础。

In this thesis, moment-volume instability in Invar materials and induced transitions of atoms from high moment state to nonmagnetic state with elevating temperature are taken to understand composition- and temperature-dependence of investigated magnetic and elastic properties of 〓.

在本工作中，Invar材料中的磁矩—体积失稳以及由其产生的随温度升高从高磁矩态向非磁态的原子跃迁机制被用来理解〓的磁性和弹性的成份和温度依赖。

The effects of lamination angle,number of layers and radius-to-thickness ratio on the buckling pressure are analyzed.

分析了壳体的几何参数、铺层数、铺层角、半径厚度比值对失稳临界荷值的影响。

The results show that the medial surface wrinkling and the lateral surface unstability are the main failure form of the thin-wall stainless steel tubes in cold bending forming.

结果表明，薄壁不锈钢管件弯曲冷成形的主要失效形式是内侧部分的起皱和外侧部分的失稳。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。