查询词典 Laplace transform

Several integral transform s are named for the mathematicians who introduced them (Fourier transform , Laplace transform ).

几种积分变换依引进它们的数学家而命名，例如傅立叶变换、拉普拉斯变换

Applying the method of integral transform, the governing equation of viscoelastic shallow spherical shell under actions of uniform pressure in the space of Laplace is established.

利用积分变换方法建立了粘弹性材料扁球壳在均布荷载作用下的Laplace相空间中的屈曲控制方程。

A direct method has been presented for the transient response analysis that numerical Laplace inverse transform can be avoided.

对某些动态响应问题，提出了一种直接分析方法，可以避免Laplace数值反变换。

In the numerical calculation of electromagnetic transient response, the G-S transform method is used frequently for inverse Laplace transform.

在电磁场瞬变响应的数值计算中，常采用G-S变换法作逆拉氏变换。

The harmonic field of electric dipole source on the uniform earth surface is converted into transient field by inverse Laplace transform,and the Bz/ t transient curve is calculated.The Hz transient curves on the stratified earth surface are obtained from cosine transform calculated by broken line approximation.

由逆拉普拉斯变换将均匀大地面上的电偶极子源谐变电磁场转换为瞬变电磁场，并计算出Bzt瞬态曲线；对分层大地面上的瞬变电磁场，采用折线逼近法计算余弦变换得出Hz瞬态曲线。

Laplace transform a number of important applications, the study Laplace transform a very practical application.

拉普拉斯变换具有很多重要的应用，所以研究拉普拉斯变换具有非常实际的应用价值。

However, in fact, many Laplace transforms can not be found in the above two tables, which interferes with the applications of the analytical method of Laplace transform.

但是，实际。L有一些信号在拉普拉斯变换对表上是查不到的，这就在一定程度上影响了拉普拉斯变换分析法的应用。

An image fusion method based on HSI transform and Laplace decomposition is proposed for multi-focus micropaleontology image fusion.Firstly images to be fused are transformed into HSI,then the I component is decomposed by using Laplacian.The high-frequency and low-frequency images are fused respectively based on Robert grads and region weighted average.Last the fused image is obtained by inversing HSI transformation.

首先对待融合的图像进行HSI变换，用Laplace算子对图像的I分量进行多级分解，分解后的低频分量和高频分量分别采用基于Robert梯度和区域加权均值的融合规则进行融合，最后再进行HSI反变换得到融合图像。

In this paper Laplace transforms is utilized in viscoelastic theory of polymers making the relations between various viscoelastic functions like relaxation modulus , creep compliance and functiqns representing dynamic behavior simple and clear, relaxation spectrum and retardation spectrum are defined in terms of Laplace transform to correlate all viscoelastic functions.

将拉普拉斯变换应用于聚合物粘弹性理论，使粘弹性材料的特性函数如松弛模量、蠕变柔量以及表示动态力学性能的函数之间的关系简单明了，并用拉氏变换定义松弛谱和推迟谱，将各粘弹函数相互联系起来。

By the properties of k-th order symmetric function , we obtained some estimations of integral mean value of the solutions of the boundary value problems for some kind of special partial differential equations in Dk which can be changed into Laplace equations in the unit circle by way of suitable transform .

另外，D_k上的某一类特殊的偏微分方程经过适当变换后转化为单位圆上的Laplace方程，其边值问题的解的积分平均估计可由k次对称化函数的性质较好给出。

We will see more and more activist government policies that distinguish economic activities according to the nationality of the actors.

我们将看到越来越多激进的政府政策，这些政策根据企业的国籍来区分经济活动。

If we can prove the independence of an axiomatic system, then we can guarantee the conciseness of this system, ie.

如果能够证明某个一阶谓词系统的独立性，那么就能够保证该系统的建立是精炼的，即没有任何一条公理或推理规则是多余的。