查询词典 iterative

After the axial profile curves of back shroud are determined, the iterative formulae for calculating the curves of front shroud of impeller are derived in such a way that the flow passage area of the impeller profile varies with the middle curve of passage L linearly.

在确定叶轮后盖板的轴面流道曲线后，从过流断面积F沿流道中线L线性变化出发，推导出前盖板曲线的离散迭代公式。

The constraints of oversampled cosine modulated filter banks with perfect reconstruction are deduced in this paper and then we propose an iterative method for designing the prototype filter.

接下来我们推导了过采样余弦调制滤波器组的完全重构条件，提出了一种迭代算法设计完全重构的过采样余弦调制滤波器组。

Chapter 4 provides a bi-iterative linear programming algorithm to design analysis and synthesis prototype filter of oversampled linear phase DFT modulated filter banks with near perfect reconstruction.

第五章给出了2M通道临界采样交替DFT调制滤波器组的结构、完全重构条件及多相位结构图。

Moreover the vibration frequencies of the plate are comput-ed using iterative method, which begins with the in vacuo eigenfrequency and continues until in-water eigenfrequency con-verges.

从真空中模态特征频率出发用迭代法直到水中频率收敛为止而得到水中方板的特征频率，进而计算了方板的棤态辐射效率。

Moreover the vibration frequencies of the plate are computed using iterative method,which begins with the in vacuo eigenfrequency and continues nutil in-water eigenfrequency converges.

至于弹性薄板在水中的振动问题，Helisse[6 ] 回顾了研究历史，他用一组特定的三角函数作为基函数采用瑞利-里兹方法求解了有、无障板条件下矩形板在水中的

To deal with three issues that have bedeviled clustering, some dominant sets being statistically determined in a significance level, predefining cluster structure being not required, and the quality of a dominant set being ensured, a novel, iterative clustering approach is proposed.

本文从算法原理的角度讨论了该方法在芯片数据处理中的适用性，并给出了该方法的误差判定标准，实验结果表明经LTSA降维后得到的低维投影可视化效果好、分类准确性高，且在目标维数判断上优于常用的PCA算法。

An automatic algorithm was used in the analysis to identify clusters of groupings of patients. We used the classical unsupervised clustering method called the Iterative Self-organizing analysis technique of DATA analysis originally introduced by Ball and Hall.25 The technique allows the splitting and merging of clusters while trying to find the "best" configuration. It therefore, requires very little a priori knowledge about the data and predefining the possible number of clusters or groups is not required. The range of possible minimum and maximum number of clusters within which the algorithm can search for an optimal configuration was determined by a procedure called the chainmap which reorders the multidimensional data in the form of a 2D distance map.26 A patient vector is randomly selected and its nearest neighbor is identified as that with the shortest distance between the 2 patients' vectors.

使用自动算法来分析鉴别患者组的聚类，我们使用经典的最初由Ball和Hall提出的的非监控聚类方法，该技术允许在寻找&最佳&形态使对聚类进行拆分和组合，他不需要对数据专门的知识和对聚类或群的可能数量进行预设，在聚类可能的最大和最小范围内，算法可以通过一个叫Chainmap的程序寻找最理想的形态，该程序记录了来自2D距离图的多维数据。

Based on the modeling theory of the equivalent probability density error model(marked as "Tepdem") and the numerical algorithm,this paper provides an approach on how to ascertain a point location with the highest coordinates precision between both of the adjacent characteristic points on a generic curve accurately by use of the theory of function extremum as well as the iterative algorithm,and it also provides the method on how to obtain the least width of "Tepdem" exactly,from which,the explanation of geom...

基于等概率密度误差模型建模原理和数值算法，运用函数极值理论和迭代方法来求解平面一般曲线上两相邻特征点间位置精度最高的点，以精确确定误差模型的最小带宽，从理论上给出等概率密度误差模型的几何特征，从而进一步完善矢量GIS的位置不确定性理论。通过实例计算与可视化分析，验证了理论推导的正确性。

For solving the singular linear equations,we present the iterative methods based on proper splittings and give the convergence analysis.

在奇异线性方程组的求解方法中，我们提出了基于正则分裂的二级迭代法并给出收敛分析；在论文的第三章我们对奇异的结构化矩阵的置换秩进行了研究，得到了一些结论并给出了应用。

In this paper,the new method used to get the section resistance coefficient K is presented,the iterative procedure is established to calculate the internal forces of arch bridge with flat hinge joints,and the computational example is given.

针对这种情况，提出了确定平铰截面抗力系数K的新方法，建立了计算平铰拱桥内力的迭代算法，并进行了实例计算，研究结果表明，这一方法对具有任意个平铰、任意形状截面的拱桥结构是适用的。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。