Topics include : mathematical formulations ; finite difference and finite volume discretizations ; finite element discretizations ; boundary element discretizations ; direct and iterative solution methods 课程主题有：数学列式、有限差分与有限体积离散、有限元素离散、边界元素离散、直接与叠代解法。
An one - dimensional iterative chaotic self - map with infinite collapses within the finite region [ - 1 , 1 ] is used due to the better characteristics of chaos than some representative iterative chaotic maps with finite collapses 该方法利用了一类在有限区域范围内摺叠次数无限的一维叠代混沌自映射进行混沌搜索，比一般的有限摺叠次数叠代混沌自映射具有更好的混沌特性。
The photon spectrum data that are used in the calculation for translating the absorbed dose to the photon fluence have been obtained by the experimental method with a 12mv pulse accelerator and the iterative least - squares data analysis technique 为此，利用穿透系数数值分析的叠代最小二乘法对12mv脉冲加速器的轫致辐射谱进行了实验测定，并在同样的几何条件下，用m - c方法对其进行了计算。
After analyzing the functions of the weighting matrices q and r , an efficient method , which is very easy to calculate with clear meaning , to select q and r is proposed . without iteration process , this method can save computational time considerably 同时分析了加权矩阵在最优控制器设计中的作用，提出了一种简单有效、意义明确、计算量小、不需要叠代计算的加权矩阵选取和计算方法。
Abstract : by both the external combination of deck coefficient and designed water - line coefficient ? and the in - ternal combination of deck transformation and cross - section area curve transformation ? a new ship line is generated on the condition that cross - section area is the same as the basic ship and designed water line satisfies the need . this method needs not look for any transformation function to finish the change of cross - section area curve . it is a profitable development to the traditional lackenby method 文摘:本文通过甲板面面积系数和设计水线面面积系数的外层叠代、甲板面变换和横剖面面积曲线变换的自身内层叠代,在保持横剖面面积曲线不变的条件下,获得满足设计水线面系数变化要求的新船型,而不必寻找横剖面线的变换函数来实现设计水线面的变换,本方法是对传统的母型船变换的一个有益补充。
In view of the limitation of the traditional inversion theory and method of the gravity and magnetic field , professional an yulin , etc , worked in china university of geoscience , has come into being the theory system of the all - direction imagery for local gravity and magnetic sources after having researched a few years . the theory system broke through the thinking method of traditional theory system , researched all - direction imagery of the 2d local gravity and magnetic sources by means of complex function theory and researched all - direction imagery of the 3d local gravity and magnetic sources by means of spherical harmonic analysis theory , developed greatly the interpretation theory on the gravity and magnetic field 该理论体系突破了传统的重、磁场解释理论体系的思维方式，采用复变函数理论研究二维局部重磁场源全方位成像，采用球谐分析理论研究三维局部重磁场源全方位成像，大大发展了重磁学科解释理论，可以在起伏地形、有背景叠加和高频干扰等复杂条件下，直接反演加叠代修改，求解分布在有限范围内的二维和三维重磁场源异常场的多种反演问题。
Stsggered grid system is used in derivation of discretized equations and alternating direction implicit method is appilied in equations ' s caculation in the paper . in order to ensure stability and accuracy of numerical calculation , i adopt semi - implicit method for pressure - linked equations that is very popular so far 本文在对方程离散时采用了交错网格技术，在对离散方程求解时则采用了交替方向叠代技术( adi法) 。为保证数值计算的稳定性和精确性，采用了目前较为流行的simple类计算程序。
Global motion can be modeled by a few parameters will be stated in chapter 2 . in chapter two are given the system structure and key technologies of global estimation and compensation , describing several possible details of each key technology . global motion parameters estimated using regression technique which first estimate the local motion and then uses the local information to find the global motion that minimize the least square error 并重点研究了一种基于回归分析的图像全局运动估计与补偿技术,它首先利用光流场法估计局部图像背景点的速度场,然后利用鲁棒的叠代排除法估计图像传感器的全局运动模型参数,再利用估计出来的全局运动参数对图像进行双线性内插运动补偿。
This paper focuses on the following research work : 1 . proposes a genetic algorithm based on matrix encoding for next hop route with load and time delay ; 2 . proposes a genetic algorithm for shortest route via designated node , solves the problem which dijkastra algorithm need two times or more to compute ; 3 . proposes a scheme of dividing populations and dividing time in order to improve the success ratio ; 4 . proposes a network model for directional motion , performs evaluation for mobile ip based on wlan , and concludes some useful results 提出了解决移动ip中过指定点的路由的遗传算法，解决了dijkstra算法需要分次计算的问题，通过记录遗传算法的叠代结果还可以给出次优解路由； 3引入了分群和分周期的操作策略，对过指点最短路由的遗传算法进行了改进，仿真分析表明使用该遗传算法求解过指定点的路由获得了比inagaki算法更高的成功率； 4
Chaotic sequence is a complete autonomic process after its iteration . it is more similar to the evolution process than the stochastic process . we obtained chaos - genetic algorithms by using chaotic variable in initializing group , crossover operator , and mutation operator of genetic algorithms 算法的改进研究，混沌序列在叠代开始后，就不受外界的影响，是自治的过程，同完全随机的过程相比，它更近似于生物的进化过程，此外，由于具有类随机性等特点，将混沌引入遗传算法是可行的。
