查询词典 algebraic form

According to the characteristics of CC NUMA parallel architecture, the authors propose some strategies and methods to optimize the communication of parallel programs by combining computing transformation and data transformation based on unified algebraic representation in this paper.

因此 ，如何通过并行编译优化提高并行程序在 CC- NUMA并行系统中的执行效率，有着重要的理论和实际意义。

With the frequency and mode shape being regarded as functions of damage parameters, the overdetermined algebraic equations with damage parameters as unknowns can then be constructed by differentiating frequency and mode function on the basis of structure mode finite element formula, the damage parameters of which are obtained via Taylor expansion.

本方法从结构模态有限元算式出发，把频率和振型看作损伤参数的函数，经过泰勒展开获得频率、振型对损伤参数的一阶偏导数，然后构造以损伤参数为未知量的超定线代方程组，求解得到全部损伤参数值。

In this thesis, we mainlystudy some problems on approximate implicitization and piecewise algebraic varieties.

本文主要针对参数曲线曲面的近似隐式化和分片代数簇的某些问题展开研究。

The governing equation of tank wall can be expressed as a set of algebraic equations by the pseudospectral method.

采用重心Lagrange插值多项式建立未知函数的微分矩阵，将池壁的控制方程表示为代数方程组。

The thesis suggests an algebraic grid generation method for calculating the transient flow problem of a small rigid circular cylinder oscillating rectilinearly inside a large circular fluid tank.

中文摘要本文旨在建议一个代数格网生成方法，以计算圆柱体於大型圆形液槽内水平振动之流场。

We obtain a sequence of solutions of Liapunov algebraic equations which converges to the solution of a SARE.

算法中得到Liapunov线性代数方程解的序列，该序列收敛于随机Riccati代数方程的解。

The theoretical knowledge and experimental research shows that this method can increase the reconstruction speed.Based on SART, a modified simultaneous algebraic reconstruction method is also presented, which takes into account both the density of pixel an

对代数重建法和联合代数重建法的思想根源以及由此而导致的性能上的差异进行了研究分析，提出了基于代数重建法的改进算法，该算法将相邻的像素综

In SART（Simultaneous Algebraic Reconstruction Technique）,there is no restrict to image space,so the image space's noise will increase after the definite number of iteration.

联合代数迭代方法对重建图像空间是无约束的，其迭代到一定次数后，图像空间的噪声会不断增加。

Two construction methods for fewer views from limited range—ART and SART are studied, and simulated a physical fields views whose variation of deflection is equal to double-Gauss function, and then reconstructed it, and still analyzed the accuracy of the reconstruction methods.After study and analysis on the theory of ART and SART, and after analysis the properties resulted from their theory root cause, A modified simultaneous algebraic reconstruction method is presented, which is based on ART, this method takes into account both the pixel itself and the pixels close by it which are crossed by the same ray.

论文研究了两种有限投影方向的非轴对称场的CT重建算法——代数重建法和联合代数重建法，并用VC++程序模拟实现了折射率分布为双高斯函数的场的正向投影及重建过程，并对所用算法的重建精度进行了分析。

ABSTRACT To generalize the ordinary bialgebra Takeuchi introduced the x R-bialgebra in the context of algebraic topology and classification...

为了推广双代数的概念，Takeuchi在代数拓扑和代数分类的背景之下，提出×〓双代数的定义。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。