不稳定状态

The evaluated results of 152 high slopes and their retaining structures indicate that majority(85%) of them are stable and safe, and fewness(4%) of them are unstable or not safe.

分析结果表明：奉节新城高边坡及其支挡结构绝大多数(85%)处于稳定和安全状态，只有极少数(4%)处于不稳定或不安全状态，其它部分(11%)处于欠稳定或欠安全状态。

Then, the dynamic behaviors of Lur'e system have been analyzed through the simulation method, and the paper presents that the final dynamic behaviors of the system are sequentially changed according to the following states: the unstable dispersing state, chaotic state, steady cycle state and balanced state respectively with the filtering wave function from weak to strong and under the condition of meeting parameters.

以一维逻辑斯蒂方程为工具，论证了一类非线性Lur'e系统通过周期倍化达到混沌的机制，深入研究了该系统由混沌转化为有规律的周期性问题，并通过仿真分析了Lur'e系统的动力学行为，得出了这类系统在满足参数条件下，随着滤波作用的由弱到强，系统的最终动力学行为依次按着不稳定的发散状态、混沌状态、稳定的周期态、平衡态的顺序变化。

Aimed at the problem of choosing the initial value when the Newton method is used to compute the controlling unstable equilibrium point, a practical and rigorous solving scheme was presented: by identifying the controlling load bus of the given fault, and using the Thevenin equivalent circuit to represent the rest of the system at the state of the post disturbance stable equilibrium point, using the steady equivalent circuit to represent the induction motor in composite load, and then using the torque characteristics of induction motor, a point near the CUEP is gained to be the initial value. The second order normal forms was used to approximate the stable manifold of CUEP, and the local approximating boundary of the region of attraction of the post disturbance stable equilibrium point was gained. Then just by simulating the state of the system at the fault clearing time, the transient voltage stability of the system could be determined.

针对采用牛顿法求取故障后系统主导不稳定平衡点(controlling unstable equilibrium point，CUEP)存在的初值选取难题，提出一种实用但不失严谨的解决方案：通过识别给定故障的主导负荷母线，对主导负荷母线以外系统由故障后稳定平衡点处的状态进行戴维南等值，对负荷中感应电动机部分采用其稳态等值电路，再由感应电动机的转矩特性求得CUEP附近的一个点作为近似的CUEP，以此为迭代初值可靠求得CUEP；采用二阶正规型来近似CUEP的稳定流形的方法求得近似的局部吸引域边界；由仿真得到故障清除时刻系统的状态并根据该状态是否位于吸引域内判断系统的暂态电压稳定性。

Cause business card printing and membership card making PDF version inconsistencies and run mainly attributable to the Ink viscosity control and ink State is not stable, feed the State is not stable, Board of planeness is not good, and so on.

造成制卡和会员卡制作颜色深浅不一致和跑版的主要原因是对水墨的粘度控制不好、传墨状态不稳定、送纸状态不稳定、纸板的平整度不好等。

The unusual quality of one tie up of the space-energy make the gravitation of quantum spatial measurement cosmic energy, lave the absolute point of unusual quality one tie up of in cosmic time-space, come to do not symmetrically gradually belong to stabilization thus at reductively fluctuate, not can reversely strides across reach the stable state of limitedly relatively not symmetry, come to do the circle of shut locus thus infinite continuous stable strides across.

宇宙能量的宇称量子的空间能使引力的一维奇性，偏离在宇宙时空中的一维奇性的绝对点，成不对称地递归于稳定而在缩小地波动，不可逆地跨越到有限地相对不对称的稳定状态，成为闭合轨迹圆而无限延续的稳定跨越。

Depending on the frequency detuning and the injection power, the slave laser can be either stably, unstably locked, or become chaotic.

此时根据失调程度与雷射强度，从属雷射的状态可能是稳定锁定、不稳定锁定、或者混乱的状态。

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。

Modeling and stability analysis problem of linear switched system are emphasized in this part and main results include:(1) Through investigation in the projection of 〓 on x, where x denotes continuous state vector, a series of sufficient conditions for stability, asymptotic stability and unstability of linear switched system's equilibrium in the sense of Lyapunov are achieved. And also, a sufficient and necessary condition for state bounded stability of linear switched system is received.(2) For a class of periodical linear switched system whose switching sets are a group of ordinal lines starting from the original point, it's proved that state bounded stability can be defined by the running characteristic in a single period (3) Based on linear switched system, the concept of linear switched system network is put forward. Linear switched system network is a complex network interconnected by many linear switched systems.

这部分着重研究线性切换系统的建模与稳定性分析问题，主要成果包括：（1）通过考察〓在x上的投影，得到线性切换系统的平衡点在Lyapunov意义下稳定、渐近稳定及不稳定的一系列充分条件，并得到了线性切换系统状态有界稳定的一个充要条件；（2）证明了对于一类切换集为从原点出发的一组射线的周期线性切换系统，其状态有界稳定可根据一个周期内的系统运行特性来判定；（3）在线性切换系统的基础上提出了线性切换系统网络的概念，线性切换系统网络是由多个线性切换系统交互作用而形成的复杂网络。

In order to conquer its instability due to environment and the demand of enterprises and enhance its flexibility and quality,EIS is required to own very strong adaptivity.

为克服因企业信息系统开发环境和企业需求动态变化而造成的不稳定状态，提高软件质量和柔性，EIS 必须具有较强的可适应性。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。