查询词典 bifurcation

Consider the subharmonic bifurcation, a hypothesis of the monotonicity of periodic orbits is always needed.

在讨论次谐轨分岔时，总是在周期轨簇的周期是单调的前提下来进行的。

Among them,9 patients had biliary strictures at the site of hepatic bile duct bifurcation,and 6 patients had intrahepatic biliary strictures,and 3 patients had multiple extrahepatic and intrahepatic biliary strictures.Eighteen patients with NABS were managed with interventional therapy,endoscopic treatment,RouxenY anastomosis or retransplantation.

结果：共发生NABS 18例（3.5%），其中肝门部胆管狭窄9例，肝内胆管多发狭窄6例，肝内外胆管多发狭窄3例。18例病人采用给予反复的介入、内镜治疗、外科重建胆道及再次肝移植治疗。

To " it is bifurcation later " nolle prosequi requirement, tecent science and technology limited company was being accepted yesterday " daily economy news " the response when interviewing, the prosecution of Tecent behavior,"It is the appropriate action that defends oneself to close right increase ".

对于"回头是丫"的撤诉要求，腾讯科技有限公司昨天在接受《每日经济新闻》采访时回应，腾讯的起诉行为，"是维护自身合法权益的正当行为"。

The joint effect of active and reactive power on the voltage stability of a typical power system was considered by analysing the two parameter bifurcation problem related to nonlinear oscillation phenomena. Numerically, as the active power P1 increases, the Hopf points get closer and eventually coincide at P1=1.455 43 the cyclic fold curve gets closer and closer to the Hopf curve and finally intersects the Hopf curve at a singular point the period-doubling points also get closer and finally coincide at P1≈0.65. The stability behaviour is pre-determined using the normal form approach near the limit point of the Hopf curve. Hence, in the power system attention should be paid to both the consumption of active power and the decrease in the reactive power to prevent nonlinear oscillations. A controller can be designed to absorb some active power and to avoid the nonlinear oscillations that damage the system components.

针对一个典型的单机无穷大电力系统，通过分析系统的双参数分岔的非线性振荡现象，综合考虑有功和无功功率对电压稳定性的影响数值分析表明，随着有功功率的增加，电力系统的Hopf点越来越靠近，最终合为一点在P1=1.455 43处同时圈折cyclic fold 曲线也越来越靠近Hopf曲线，并在Hopf曲线的稳定与不稳定临界点处与Hopf曲线相交倍周期分岔点也随着越来越靠近，最终在P1≈0.65 合为一点应用正规形理论方法，初步确定了Hopf曲线极限点附近的稳定性态因而，电力系统应注意让负荷利用有功功率，减少无功功率的产生以防止非线性振荡另外，可以设计一个稍微吸收网络的有功功率的控制器，以避免因周期振荡而造成电力系统仪器的损坏或电压崩溃

Based on the recent situation and trend of the nonlinear systems, we present some recent developments and important problems in stochastic dynamics such as response, bifurcation , chaos, synchronization and control.

摘要介绍了非线性随机动力学的响应、分岔、混沌以及混沌同步与控制的研究现状和发展趋势，探讨了随机复动力系统、时滞系统、逼近方法和数值方法研究中的若干问题及其进展。

The direction and stability of bifurcation are determined by the normal form theory and center manifold theorem. Results of some computer simulations are displayed graphically.

利用中心投影方法我们给出了分岔方向和稳定性的计算公式，并利用计算机对Neimark-Sacker-分岔进行了模拟验证。

Then we discuss the stabilities of other fixed points, and prove the conditions appeared Hopf bifurcation by the Center manifold theorem and normal form.

并且讨论了系统其他平衡点的稳定性，又利用中心流形定理和规范形证明了出现Hopf分支的条件。

The direction and stability of numerical Hopf bifurcation are discussed.

讨论了数值Hopf分支的分支方向、分支周期解的稳定性。

Lorenz on the bifurcation parameter r and the Paint program, is a better reference literature.

详细说明： Lorenz的关于参数r的分叉和画图程序，是比较好的参考的文献。

Analysing and computing its coefficient, we find out the bifurcation of curve for its parameter plane.

然后对其系数进行分析、计算，找出其系数参数平面的分支曲线。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。