有限基

First, basing on point halving, this thesis proposed a new efficient algorithm of computing kP lQ on an elliptic curve over the finite field with characteristic 2 and analyzed the computational efficiency. When the ratio I/M of inversion to multiplication cost is small, this new algorithm is about 5%～30% faster than the traditional algorithms.

首先，基于半点运算给出一种计算特征为2的有限域上椭圆曲线双标量乘法kP lQ的新算法并分析了效率，当基域上求乘法与求逆的运算时间的比值比较小时，新算法的效率比已有算法提高5％～30％。

The magnetic field in the cell was calculated on the basis of Biot-Savart's law and improved—equal—effective—magnetic dipole method, and the computer program was much improved on previous work.

根据欧姆定律和基尔霍夫定律，用有限差分法导出了求解铝电解槽内三维电流分布的数学模型，编制了计算程序，在国内首次较准确地计算了铝电解槽内三维电流分布。

For those, this thesis constructions the Hermite B-spline bases scale functions with boundary conditions on the interval. Combining with Garlerkin method, the steps are given to solve differential equation, as an example, it is used to deal with finite-length beam and plate problems.

鉴于以上的原因，本文构造了满足区间上边界条件的Hermite B－样条尺度函数基，提出Galerkin法求解格式，并应用于弹性地基上有限长梁和板问题，给出了数值结果。

Oleanane-type triterpene with a carboxyl group at C-14 is present in a limited number of natural resources.

齐墩果烷型三萜与羧基在C - 14 ，是目前在数量有限的天然资源。

The finite element numerical method based on centimo theory and dispart-insert-value One side ,it is conventional energy method. It is transfiguration of Ritz-Galerkin method .

在求解非线性波动方程时，有限元方法通过剖分插值构造有限维子空间SN的基函数的方法保持了古典Ritz-Galerkin方法的优点，克服了它的不足。

Considering some period of time geomagnetic data recorded at the Observatory Surlari (colatitude 45.3°, longitude 26.3°) and comparing them with data recorded at other observatories, such as Ottawa (colatitude 44.6°, longitude 284.5°), Canberra (colatitude 125.3°, longitude 149.3°), Kakioka (colatitude 53.8°, longitude 140.2°) and Vernadsky (colatitude 155.3°, longitude 295.7°), including comparison to the windowed Fourier transform, the choice of an appropriate wavelet basis function, edge effects due to finite-length time series, and the relationship between wavelet scale and Fourier frequency.

我们分析了Surlari观测台（余纬45.3°，经度26.3°）的地磁时间序列，并与Ottawa（余纬44.6°，〖JP2〗经度284.5°），Canberra（余纬125.3°，经度149.3°）， Kakioka（余纬53.8°，经度140.2°），Vernadsky〖JP〗（余纬155.3°，经度295.7°）等台站的结果进行了对比分析，讨论了Fourier变换时间窗和小波基函数选取的影响，有限长时间序列引起的边缘效应，以及小波尺度和Fourier频率的关系等问题。

At Cape Collinson Crematorium, due to limited space, there will be special arrangement for traffic on the day of cremation, the committee sincerely asks the media not to go there for interview.

基於歌连臣角场地有限，以及将有特别交通措施，治丧委员会恳求各传媒请勿前往该处采访。

The security was based on difficulties in factorizing large integer and computing discrete logarithm on Abel group C.

该方案的安全性基於大数分解和有限Abel群C上计算离散对数的困难性。

The test results show that the matric suction decreases with increasing water content under the same dry density; and the law is more obvious when water content is less than 24%.

对参数φ分析发现，在非饱和状态下基质吸力对红土强度的提高是有限的。

This paper proposes s new method to construct wavelets decomposing and reconstructing matrices of wavelet coefficients without iterative calculation in symmetrical extension for finite length signal ,and correspondingly gives the base vectors and basis images of 9/7 wavelet. The matrices can be used for image-partition processing based on wavelet method.

给出了对称延拓方式下有限长信号不需逐级计算而直接得到小波系数的分解矩阵和由这些小波系数重构原信号的重构矩阵的构造方法，并给出了常用的相应于9/7小波的分解矩阵和重构矩阵及其基向量，它们可广泛用于基于小波的图像分块处理中。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。