阻尼的

Moreover, the life span of blow-up solution is estimated. Chapter4 is for the Cauchy problem of hyperbolic system with weak damping.

在第四章，我们研究一类弱阻尼非线性双曲型方程组的Cauchy问题。

2Based on the nonparametric model and the hyperbolic tangent model dynamic response analysis matlab based programs on the damper-structure coupled system were carried out.

2分别采用双曲正切模型和神经网络模型编制了Matlab程序，对安装有磁流变阻尼器的结构系统进行了动力响应分析。

In this case, the existing design criterion of the damping resistor will be inapplicable.

这种情况下，现有的阻尼电阻设计标准将不再适用。

An iterative method is developed to calculate the coordinates of the intersection point of an incident ray with a B-spline surface in 3D space.

探讨了用阻尼最小二乘法对B样条曲面反射器进行优化设计的方法，通过优化运算修正控制顶点Z轴坐标，使得曲面在使用扩展光源时光形分布尽可能满足设计要求。

This paper deals with the initial boundary value problem of a class of strongly damped wave equationsWhere,Ω?

本文研究以下强阻尼非线性波动方程的初边值问题其中Ω？

Finite element method is used in the study of nozzle damping of instable combustion in a solid rocket motor.

应用有限单元法研究固体火箭发动机不稳定燃烧中的喷管阻尼，并用波衰减对比法进行了试验研究。

The added damping by the interstage seals also permits operation at the second critical speed without significant rotor vibration.

加上阻尼由中间的封条还允许操作在第二次临界转速无显着转子振动。

In the iterating process the spatial derivative is iterated as well.

首次得到了硬热圈水平上的非线性空间阻尼率。

From this result, the nonlinear eigenfrequeney shift and the nonlinear Landau damping rate are obtained.

利用这个结果，分别计算得到了QGP的非线性本征频移和非线性朗道阻尼率。

In chapter 5,Lie group analysis method was applied to nonlinear PDE with variable coefficients.

在这一章里，我们用Lie群分析法研究了带线性阻尼项的变系数广义Burgers方程。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。