查询词典 Poisson's equation

Poisson line technique is a method of generating a straight line by diffraction for high precision alignment,which can keep the center of Poisson spot in this line at long distances (several tens or hundreds of meters).

Poisson斑的中心可以在很长的距离内保持与轴心共线因而能实现高精度的对心瞄准，这一技术被称为Poisson线技术。

According to the discussion of the last chapter, we make use of a class of Null Dirac structure on the product Poisson manifold T*M×g* to do the Poisson reduction.

为此，我们利用了T*M×g*上一类Null Dirac结构来做Poisson约化。

The first is that a symplectic structure or a Poisson structure exists on the even dimensional phase space or on the odd dimensional phase space of the corresponding equations. The second is that there is another symplectic structure or another Poisson structure on the generalized phase space which consists of original phase space and independent variable space.

第一、系统在相空间上存在一个一般辛结构或者Poisson结构；第二、系统整体在包括了自变量的增广空间上存在一个一般辛结构或者Poisson结构；第三、第一个结构若是依赖于自变量，那么系统必然受到外力作用（偏微分方程也有特殊的情形，我们在第五章会加以说明），而第二个结构的则给出了第一个结构和外力之间确切的对称关系。

On the other hand, many important risk processes are also special cases of Levy processes, such as Brownian motion, the compound Poisson process, the compound Poisson process perturbed by Brownian motion.

另一方面，风险理论中的许多风险模型，如经典风险模型，带干扰的经典风险模型，布朗运动等，均是一些特殊的Levy过程。

In order to deepen people's comprehension of Poisson Distribution, this thesis adopted examples or proceeded in the form of question, causing people's highly recognition to Poisson distribution.

为加深大家的理解，并以例子或问题的形式进行研究和解答，同时引起大家对Poisson分布的高度重视。

Results show that the sound absorption coefficient of the polymers with negative Poisson's Ratio is larger than that of the polymers with positive Poisson's Ratio.

优化结果表明：负泊松比高分子材料的吸声系数明显大于正泊松比高分子材料的吸声吸声系数。

Methods With the aid of correspondence principle of elasticity and viscoelasticity and the integral transform relations the accurate expressions of viscoelastic Poisson's ratio were derived based on some expressions of elastic Poisson's ratio.

利用弹性与粘弹性的对应原理和积分变换，由弹性泊松比分析推导出粘弹性泊松比表达式。

Although the human dynamics models based on the queuing process have got great successes in the explanation of such non-Poisson property of human behaviors, there are many human behaviors with non-Poisson property cannot be explained by the queuing models.

尽管最近建立的人类动力学的排队论模型在解释这种非泊松特性的成因方面取得了很大成功，但还有大量存在标度性的人类行为不能用排队论模型描述。

Then we discusses the Poisson reduction of the submanifold in the product Poisson manifold T*M×g*.

其次，考察在特定的乘积Poisson流形T*M×g*中的子流形的Poisson约化。

For the equivariance of the momentum mapping, we consider the Poisson reduction on some submanifold of the Poisson manifold T*M×g*, and get the reduction phase space.

由于矩映射的等变性，就可以考虑在乘积Poisson流形T*M×g*的某些子流形上做Poisson约化，并得到约化相空间。

Connectors are lines that can be anchored to particular places, called glue points , on the graphic object.

连接符，可固定在图形对象的特定的地方的线条。

Another way of putting it, too many agents have a say in each other's work, and bureaucratic rigor mortis sets in.

另一种表达是，太多的作用物在彼此的工作里都有话语权，官僚的僵尸开始抬头。