助手标题
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
共[8]条 当前为第1条到8条
 

相关语句
numerical approximation
    Numerical Approximation to a Class of Second Order Two-point Singular Boundary Value Problems
    一类二阶两点奇异边值问题的数值近似
    NUMERICAL APPROXIMATION BASED ON A FUNCTIONAL NETWORK
    基于泛函网络的数值近似方法
    Total field is divided into two parts:background field and scattering field in forward modeling concerning with each iteration in the article,the background field is calculated by FFM numerical approximation;
    文中每次进行迭代涉及的正演模拟把总场分为背景场和散射场两部分 ,背景场使用解析法计算 ,而散射场使用 FFM数值近似方法计算 ;
    The network structure and algorithm of a functional network have been proposed recently. It is a natural generalization of neural networks. Good results are obtained for numerical approximation by using the functional network.
    根据泛函网络的网络结构模型及算法 ,给出一种近似二阶微分系统的解 ,采用泛函网络方法进行数值近似 ,得出了较好的结果 .
    The surface Laplacian of the body surface potential is a new technique for detecting cardiac electrical activity. Based on a nine-point numerical approximation of the analytical Laplacian, a new Laplacian sensor--a tripolar concentric ( TC ) ring electrode sensor, is developed and its relative error ( RE) of the Laplacian approximation is discussed theoretically.
    基于表面Laplacian的九点差分数值近似方法提出了一种新的表面Laplacian传感电极——三极同心电极传感器,从理论上分析了该传感器测量体表势表面Laplacian的相对误差,并与双极同心电极做了比较.结果表明: 三极同心电极传感器的误差远小于双极同心电极的误差;
    A Riesz fractional reaction-dispersion equation(RFRDE) is obtained from the classical reaction-dispersion equation by replacing the second-order space derivative with a Riesz derivative of order β∈(1,2].Using the relationship between the Riemann-Liouville definition and the Grünwald-Letnikov definition,an explicit numerical approximation is presented.The stability and convergence of the approximation are analyzed.Finally,some numerical examples are given.
    这个方程是将一般的反应-扩散方程的二阶导用Riesz导数来替换. 利用Riemann-Liouville定义和Grünwald-Letnikov定义之间的关系,我们提出了一个显示的数值近似,同时讨论了稳定性与收敛性,并给出数值例子.
    From the relationship between the Caputo derivative and Grunwald derivative,the discretion for the fractional derivative is proposed by using the standard numerical approximation of Grunwald derivative.
    通过Caputo型与G runwald型的分数阶导数的转化关系以及利用G runwald型的标准数值近似公式对Caputo型分数阶导数进行离散,可构建时间分数阶扩散方程初边值问题的隐式有限差分格式。
    from precision to numerical approximation;
    从精确到数值近似;
 

首页上一页1下一页尾页 

 
CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社