乘法

That is to utilize general MPI programming environment, program on the NHBL parallel computational model, analyze and predicate the running cost of program by using the cost function of this model, and analyze the scalability of program by using the time-scale scalability metric. Finally, we analyze the numeric algorithm example---matrix multiplication and the nonnumeric algorithm example---PSRS sorting on Dawning-1000 MPP and NHPCC-cluster NOW system by using the integrative method.

提出了将并行计算模型、算法、编程进行一体化的研究的方法，即利用通用的标准的MPI编程环境，将编程建立在NHBL并行计算模型上，并且利用该并行计算模型的评价函数进行分析、预测程序的运行代价，再利用时间比例的可扩放性分析方法来分析程序的可扩放性性能；最后我们用PSRS排序算法和矩阵乘法这两个典型的数值和非数值的算法，在曙光-1000并行机和NHPCC-Cluster工作站集群上进行了一体化的分析。

By using the least square method and the weighted functionmethod of nonparametric estimation together, this paper defines the wavelet estimators of β and g.

本文采用了半参数估计常用的办法之一——最小二乘法结合非参数权函数估计法定义了参数分量和非参数分量的估计，这里的权函数不是通常所采用的核权函数或近邻权函数，而是由小波方法所得到的权函数，我们称它为小波权函数。

This paper develops a specification that can use the WLS to test and adjust for nonrandom sample selection.

通过运用加权最小二乘法，检验出我国1996~2002年税务稽查执行的是非随机政策，并在此基础上提出了纳税人不遵从方程。

The analytical method used in this paper is justified by comparing with country norm form formula results , the result of Franco et al and the result of Yuxiu Wei et al.

综合各因素的影响，应用最小二乘法进行曲线拟合，得到了斜向波和多向波作用于直立堤上的平均越浪量的计算公式、单波最大越浪量的计算公式、单波最大越浪量和平均越浪量的关系式、越波率计算公式以及单波越浪量的统计分布形式，并通过与按照我国规范中斜坡堤越浪量计算公式形式拟合得到的直立堤越浪量公式和俞聿修，魏德彬的试验结果、Franco C，Franco L试验结果的比较来验证本文所采用的分析方法的合理性、试验结果的可靠性，以便于理论研究和工程设计参考应用。

Simulation results show that this method can reduce more than 73% and 24% computing cycles,compared with normal and fast DCT computation algorithm respectively.

这种方法由 4个连续的步骤来完成，对 8点的一维DCT ，只需要 11次乘法和 2 9次加法。图 1给出了该算法的计算流程。图 2解释了图 1中使用的

And the spectrum was divided into three regions, which were 430~100 nm, 1 000~1 800 nm, 430~1 800 nm, respectively. Four methods of spectrum data preprocessing were used, which were multiplicative scattering correction, standard normal variate, first derivative and second derivative.

应用多元散射校正，标准正态变量变换，一阶微分和二阶微分四种不同预处理方法，分别在430~1 000 nm、1 000~1 800 nm和430~1 800 nm三个光谱范围内建立识别脐橙污染程度的偏最小二乘法数学模型。

Mathematical statistics ; least squares method ; probability ; normal distribution ; error function

数理统计学；最小二乘法；概率；正态分布；误差函数

On the basis of analyzing the system, normal model structure, error predictive method and the experimental model of the pneumatic system are presented.

预报误差法是一种精确度较高的辨识方法，其辨识误差要远远小于最小二乘法。

At present the classic least square method, which is only adaptable to the data series of normal distribution, is usually adopted in statistic calculation. However, the actual series are usually pollutional distribution instead of normal distribution.

保证监测资料的可靠性是建立监控模型的基础工作，目前的统计计算一般采用经典的最小二乘法，该方法只适合于误差服从正态分布的数据序列。

Least square method; prestressing reinforcement; null method; sequential numbers

最小二乘法；预应力张拉；零点法；等差序号

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。