失稳

We have measured synchronously the variation of temperature and infrared radiation fields before and after stickslip events on compressive and extensional en echelon faults by using an infrared thermal image system and a contacttype thermometric apparatus in the laboratory.

在实验室使用红外热像仪和接触式测温仪同步观测记录了压性和张性雁列断层失稳错动前后的热场变化过程。

Spot testing or experiment is money-consuming on one hand, and the obtained data usually deviate from practical situation or unapplicable on the other hand.

为了准确评价岩溶隧道的稳定性，本文采用东北大学岩石破裂与失稳研究中心开发的RFPA强度折减版分类对围岩的破坏情况进行二维弹性有限元数值分析。

Main results are listed as below: 1. In rapid solidification, when the cooling rate is over some critical value, the solidification system will become unstable in the sense of the nonequilibrium thermodynamics, a uncontinuous steady state jump phenomenon will occur, and this uncontinuous steady state jump can be understood as the glass transition.

主要得到了如下结果：(1)通过对快速凝固过程的动力学及热力学的分析，提出了非晶转变的分枝理论模型，结果表明，对一合金熔体，当冷却速度大于某一临界值时，凝固体系会出现非平衡热力学意义上的失稳而出现多定态分枝现象，这一多定态现象可以被理解为非晶转变。

Undervoltage load shedding is one of the important means to prevent power system voltage instability.

低压减载是解决电力系统电压失稳的重要手段之一。

Taking the underground excavation of Xiluodu Hydroelectric Power Station as an example, the rock mass structure is classified based on research on distribution of fractures Adopting the structural mechanics method and UNWEDGE program, the hat stability under single fracture, groups of fractures and fragmentized rock mass is discussed in this paper to obtain the critical stable thickness and the feature of potentially instable blocks, which can be a beneficial guidance to excavation and timbering.

文章以溪洛渡水电站地下工程为例，根据断裂分布情况的研究对岩体进行分类。采用结构力学方法和UNWEDGE程序讨论了单个裂隙，成组裂隙和岩石碎块情况下顶部的稳定性来得到临界稳定厚度和可能失稳岩块的特点，可以为挖掘和支撑工作提供有益的指导。

Maxium valum of axial torque were measured by static eccntric loading test on the instrumented spines at last; Another 8 fresh frozen human cadaveric spinal speciments were used in this biomechanical test, the testing constructs used were:〓vertebrectomy and 〓 discectomy, bone-graft with anterior Kaneda device, mesh-cage interbody fusion device, mesh-cage with Kaneda fixation, mesh-cage with posterior pedicle screw system TSRH.

利用腰椎三维运动分析系统进行生物力学稳定性测试及静态偏心加压极限扭转载荷测试。2）取8个新鲜冷藏的人尸脊柱标本，分别行〓椎体全切，〓和〓椎间盘全切，制作损伤失稳模型，依次实施四种重建术式：髂骨块植入加前路Kaneda钢板固定，钛网椎间融合器植入，钛网和前路Kaneda联合应用，钛网和后路TSRH椎弓根系统联合应用。

First, aiming at the problem of stability for the elastic vimineous bar, the mechanical models are established.

基于小挠度下杆所承受载荷的微分方程，确定了细长运动杆的失稳临界载荷。

At the same time, on the base of the analysis and study of the characteristic of sliding stability failure of loess slope in Sanmenxia area, a method, which is suitable for many hori

同时，在对三门峡地区黄土边坡滑动失稳特征进行分析研究的基础上，采用了一种适合多种土层、不同坡型的边坡稳定性分析方法，对三门峡地区四处深路堑黄土边坡实体工程稳定性进行分析及评价。

Simulation result shows that choosing proper delayed time and gain coefficient the unstable periodic orbits of the system can be ballasted and the chaos can be eliminated, and the system can be changed from unstable to stable.

数字仿真结果表明，选择适当的延迟时间和反馈系数能够镇定系统的不稳定周期轨道、消除混沌，并能使系统从失稳状态进入稳定状态。

Simulation result shows that choosing proper delayed time and gain coefficient the unstable periodic orbits of the system can be ballasted and the chaos can be eliminated, and the system can be changed from unstable to stable.

数字仿真结果表明，选择适当的延迟时间和反馈系数能够镇静系统的不稳定周期轨道、消除混沌，并能使系统从失稳状态进入稳定状态。

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。