查询词典 asymptotic behavior

As an application of the asymptotic theory, a special wave equation is analyzed in detail.

在三维空间中，建立了一类半线性波方程在非球面对称形式下整体解的渐近理论，并给出了应用。

In an appropriate condition,the βn,σn of their asymptotic normalities and the gn of optimal weak convergence rate were obtained.

在适当的条件下，得到^βn，^nσ的渐近正态性和^gn最优弱收敛速度

The well-conditioned asymptotic waveform evaluation is applied to the MoM solution of scattering from microstrip structures so that the reduced order model is obtained to efficiently evaluate the frequency response over a broadband in this paper.

为了克服传统MoM逐点计算宽频带特性的缺点，本文将WCAWE技术推广应用到微带问题特别是微带散射问题的分析中，克服了传统AWE技术存在数值不稳定性的缺点。

First the passivity of motor rotor flux subsystem is proved. Workless forces have no influence on the energy balance equation and have no effect on the asymptotic stability. Then it is discussed that the system can stably track the reference rotor flux without rotor flux observer. At last an adaptive PBC strategy is proposed with regard to the rotor resistance change. A clear and simple design for the speed control subsystem with inner current loops is presented.

证明了感应电机转子磁链子系统的无源性，找到系统能量耗散特性方程中的无功力，它不会影响系统的稳定性，得出无需转子磁链观测反馈即能稳定跟踪转子磁链的参考值，同时考虑电机转子电阻在运行中发生未知变化，设计自适应调节器使系统对转子电阻呈现鲁棒性，构建了带电流内环速度控制系统。

Using asymptotic analysis and numerical optimization, approximative yield equations are obtained for the extended Gurson model, accounting for the void size effect.

通过渐近分析、数值优化的方法对参变式屈服曲线作进一步的近似，得到了考虑尺寸效应的修正的Gurson屈服形式。

In this paper, we study the asymptotic theory of two typical dissipative infinity dynamic systems in mathematics and physics.

本文研究了数学物理中两类典型的具有耗散性的无穷维动力系统的渐近性理论。

Considering a spherical porous carbon particle immersed in a static ambient atmosphere, the combustion characteristics under three basic conditions: frozen flow, equilibrium flow, partial flow are solved in a half-analytical and half-numerical way. By using the LAEA (Large Activation Energy Asymptotic Method), the departure value of some parameters such as combustion rate, temperature, and concentration are obtained. On this basis, the rules of a carbon particle combustion under various conditions when the gas phase Damk〓hler number is in the range of 0,+∞ are summarized.

建立氧化性环境中相对静止的多孔炭粒燃烧的控制方程，采用半解析、半数值方法求解出炭粒在冻结流、部分流、平衡流三种基本情况下的燃烧规律，并采用大活化能渐近匹配方法，计算出偏离冻结流、偏离平衡流情况下燃烧速率、温度及组分浓度等参数的偏离解，进而总结出炭粒在气相Damk〓hler数为0，∞整个范围内燃烧特性变化规律。

After comparing with many techniques available for dealing with the open boundary problems, the asymptotic boundary conditions combined with the finite element method are employed for the calculation of 3-D open boundary magnetic fields in ironless PM motor.

根据对各种开域电磁场计算方法的分析比较，本文将渐近边界条件法和有限元法结合解决无铁心永磁电机三维开域磁场计算问题。

In this paper,using the method of,we discuss septic Lacunary interpolation spljne,which is a generalization of,we derive some results on asymptotic representation,approximation degree and saturation

1—[3]讨论了五次缺插值问题，而[4]对它提出了一种分析方法，用这种方法来进一步讨论高次的缺插值问题是成功的，本文就是用这种方法讨论七次的问题，可以得到它的一些渐近式、逼近阶及饱和度的若干结果我们所讨论的七次样条 S_n它满足下列条件

A new form of control Lyapunov functional with time delays is proposed to construct feedback memoryless controllers which achieve global asymptotic stability for the considered systems.

本章通过构造含有时滞的Lyapunov泛函，采用了Backstepping技术进行时滞无记忆控制器设计，给出了控制器的存在条件，并保证了系统的全局稳定。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48