查询词典 extrapolation method

E. new extrapolation value s of finite element solutions on the first two level grids are used to provide the good initial value s on the third level grids and then an exacter finite element solution can be obtained by several CG-iterations.

摘要提出一种求解大规模有限元方程组的新外推多网格法，即用前两层网格上有限元的新外推值提供第3层细网格上的好初值，然后用几次CG-迭代能得到较准确的有限元解。

The time-domain response of the induced currents on a scattering object irradiated by a plane wave with a Gaussian pulse in time is expanded as an associate Hermite series in this paper. Using the isomorphism of the associate Hermite function and its Fourier transform, the frequency-domain information can be obtained similarly to the time-domain expansion. According to the corresponding relation between time-domain analysis and frequency-domain analysis, and using the early-time response and the low-frequency information of the induced currents, the non-known coefficients in the expansion series can be decided. The entire responses of the induced currents on the scattering object in both time and frequency domains can be obtained at one time by simultaneous extrapolation computation using both the early-time response and the low-frequency information of the induced currents.

摘要首先根据散射体在高斯脉冲平面波激励下感应电流的能量几乎全部集中在时间轴和频率轴上的有限范围内，该文将时域响应展开为系数待定的连带Hermite级数的叠加，并根据连带Hermite函数的傅里叶变换的自反性，得到与时域响应形式类似的频域响应；然后利用时域方法和频域方法分别计算散射体上感应电流的早时响应和低频信息；最后经过时域和频域联合外推计算，由早时响应和低频信息确定时域和频域响应的待定系数，从而获得了整个时域和频域的完全响应。

It was an extrapolation to the possibility of 300,000 cases, Filner said.

它是对可能性的推测的300，000个案件， Filner说。

There is also the question of whether extrapolation of results between species is valid.

还有一个问题是，推论的结果在两个物种之间是否有效。

Oh, I do not know them, I just said your story, make a simple extrapolation of it.

哦，我从来不认识他们，我只是根据你说的故事情节，所作出的简单推断而已。

The "I" is a gross extrapolation that we use as an identity for ourselves and others.

我是我们内心世界的一个笼统外延，我们以此来区分自己和他人。

This is discussed in more detail in the note on Image Processing By Interpolation and Extrapolation .

这是讨论的说明上通过插值和外推图像处理更详细。

In looking to 2007, my main message is to be wary of extrapolation.

对新一年的走势，还要警惕简单的外推。

No longer can we expect the future to be just an extrapolation of the past plus faster and larger.

我们不再期望未来就是在过去的基础上变得更快、更大。

Indeed, all but one of the 22 panelists then voted to say that extrapolation is unacceptable.

事实上，所有的22位小组成员除了一位以外，其他都投票说，推论是不能接受的。

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。