查询词典 convergence

The Galerkin FEM equations are deduced in detail. And the property of convergence are discussed. The PICCG method is improved in which the merits of PICCG and ICCG method are combined.

详细推导了E-E-ψ法的Galerkin有限元方程，并讨论了其收敛过程，对PICCG算法作了改进，组合了PICCG法和ICCG算法的优点，称为PICCG算法。

The author investigates simultaneous approximation by Gama operators and the rate of pointwise convergence by new Gamma type operators.

本论文讨论了Gamma算子的同时逼近，Gamma算子线性组合同时逼近的等价定理以及新的Gamma型算子的逼近速度。

In order to fully utilize rich coal resources of Xinzheng City (1.3 billion tons of exploited storage), Xindian Town Government decided to construct a fertilizer base combining with thermal power. The productive and technological equipment mainly adopts domestic advanced gleization convergence fine coal technology. It constitutes of gasify stove, waste heat boiler, whirlwind dust catcher, etc. The transform of brick can reach over 90%.

为充分利用新郑市的丰富煤炭资源（已探明储量13亿吨），辛店镇政府决定建设一座与热电结合的化肥基地，生产技术装备主要采用国内先进的灰粘聚流化床粉煤气化技术，它由气化炉、废热锅炉，旋风除尘器等设备构成，碳的转化可达90%以上。

ProfileIn order to fully utilize rich coal resources of Xinzheng City (1.3 billion tons of exploited storage), Xindian Town Government decided to construct a fertilizer base combining with thermal power. The productive and technological equipment mainly adopts domestic advanced gleization convergence fine coal technology. It constitutes of gasify stove, waste heat boiler, whirlwind dust catcher, etc. The transform of brick can reach over 90%.

为充分利用新郑市的丰富煤炭资源（已探明储量13亿吨），辛店镇政府决定建设一座与热电结合的化肥基地，生产技术装备主要采用国内先进的灰粘聚流化床粉煤气化技术，它由气化炉、废热锅炉，旋风除尘器等设备构成，碳的转化可达90%以上。

A third order ENO finite volume method for hyperbolic conservation laws on unstructured triangular mesh is introduced.In order to obtain the third order accuracy on spatial discretization,a weighted quadratic interpolation is constructed on every triangular mesh.Two point Gauss quadrature formula is also used on each edge of every triangular mesh and the third order TVD Runge-Kutta method is used for time discretization.The numerical order of convergence and the numerical result of a mesh 3 wind tunnel with one step are given.

摘 要 基于双曲型守恒律方程，对非结构三角形网格给出了一种ENO(Essentially Nonoscillatory Scheme)型有限体积格式，方法的主要思想是先对每一个三角形单元构造一个加权的二次插值多项式，而在计算交界面的流通量时采用了两点高斯积分公式以保证格式的整体精度，时间离散采用三阶TVD Runge-Kutta方法。

Moreover the convergence the effectiveness of Gauss numerical integral method isdiscussed and the selection of number of integration point is suggested.

另外，采用高斯积分法形成单元刚度矩阵的分析程序也可用于构件截面形状不规则或变截面构件组成的空间杆系结构的弹性分析。

By For the Jacobi iterative method of Gauss - Seidel iterative method and the comparison Initial research iterative equation and the nature of the coefficient matrix iteration convergence speed impact.

本文通过了举例对Jacobi迭代法和Gauss-Seidel迭代法进行了比较，研究迭代初值和方程组系数矩阵性质对迭代法收敛速度的影响。

The convergence and stability of the semi-implicit Euler method are studied for a general linear test equation of SDDEs.

对于随机延迟微分方程具有一般性的线性试验方程，研究了半隐式Euler方法在均方意义下的收敛性和稳定性。

Based on the analytic model of an eccentric slider crank mechanism with elastic effects at both joints of the coupler and four coupler Mathieu-typed equations of motion in terms of the generalized coordinates of the system,the extract solution is developed from the improved Hill method with accelerated convergence.

在所建立的连杆接头处具有弹性效应的曲柄滑块机构的动态解析模型以及在广义坐标下推导出的4个马修型运动方程的基础上，由具有加速收敛性的改进希尔法进行了精确求解。

In Chapter 6, based on discretization technique an implementable algorithm for nonconvex generalized semi-infinite minimax problems is presented and, utilizing properties of generalized quasi-directional derivative, its global convergence is proven under weak conditions.

对于广义极大极小问题，本文第六章在较弱的条件下，利用广义伪方向导数的性质，用离散化的技巧给出了非凸广义半无限极大极小问题的一种可实现的全局收敛算法。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。