迭代法

To investigate the detecting capability of GPR in the dispersive medium, we propose a Finite Difference Time Domain method to solve Maxwells equations. We give an iterative method for calculation of the electrical displacement and magnetic fields in the Debye medium, and a method to compute the electric field from electrical displacement.

为了研究地质雷达在频散介质中的探测能力，提出了频散介质中时间域有限差分法计算麦克斯韦方程的方法，给出了满足Debye关系的频散介质中的电位移和磁场的迭代算法，以及由电位移计算电场的算法。

New algorithms and design strategies greatly imp- rove the XXX87's performance, lots of instructions can be finished in a few clock cycles. Newton-Raphson and Polynomial approximation are used to implement division, square root, and elementary functions.

特点是结合牛顿-拉夫逊迭代算法，采用多项式逼近法对初等函数、除法和平方根进行实现，既有效地利用XXX87片内的浮点加法单元和阵列乘法器，又避免了查找表的使用。

Extrapolation Method, composed of Aitken Extrapolation and eigenvalues-based algorithm mainly, can notably reduce iterations commonly .

外推法是减少PageRank算法迭代次数的有效方法，而Aitken Extrapolation算法和基于特征值直接求解的算法是其典型代表。

Compared with traditional method by solving a Jacobi matrix, calculating account is greatly decreased because only displacement and center of buoyancy need computing while those elements of waterline plane are not required.d Based on the research mentioned above, the paper presents the computer programmes of compartment definition, free surface effection, and some modules of the programme of the intact and damaged stability calculation.

与传统的拉格朗日乘子法相比，该优化方法公式推导简单，而且每次迭代只需计算水线面以下的排水体积和浮心坐标，不需计算水线面上的面积、漂心、惯性矩等要素，计算方法直接简便。 4在以上理论研究的基础上，开发了舱室定义，自由液面修正的计算机软件；编制了船舶完整、破损状态下的浮态、稳性计算的部分模块。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。