boundary n. 边界,疆界,限界 (between);(球场)边线;界标;界限,范围,分野。 aboundary dispute 边界纠纷。 the boundary between Canada and the United States 美加国界。 boundaries on all sides 四方辐辏之所,四通八达。
linear adj. 1.线的,直线的。 2.长度的。 3.【数学】一次的,线性的。 4.【动、植】线状的;细长的。 5.由线条组成的,以线条为主的,强调线条的。 linear amplification 直线放大。 a linear equation 一次方程式。 a linear leaf 线形叶。 linear arts 线条艺术。
A linear boundary value problem for generalized biregular function vectors 广义双正则函数向量的线性边值问题
The linear boundary element method of calculating the problems of 2d electrostatic field 用线性边界元分析二维静电场问题
In this part , the first work is pretreatment of a numerical model , including creating calculating grids automatically , improvement of the linear boundary technique and so on . the second work is to estimate the siltation of a basin or channel by liu ' s equation . the third work is to build an edbms ( engineering data base management system ) for the result of mathematical model 其中主要的工作是:其中主要的工作一是数学模型的前处理,计算网格自动生成,线边界法的优化;二是应用刘家驹公式在长江口深水航道治理工程地理信息系统的支持下实现港池、航槽开挖的实时回淤估算;三是将计算成果形成gis管理和支持下的工程数据库系统( engineeringdatabasemanagementsystem ) ,同时尝试解决时间序列数据如地形冲淤变化,潮位、流速过程的分析、查询和显示问题,并实现实时、互动的动态演示及三维可视化。
The condition under which the dirac operator is self - adjoint is discussed under the general linear boundary condition between the interval of two points . for the expansion theorem of non - self - adjoint dirac operator , it is unable to use the method of integral equation . but under the linear boundary condition and unlocal boundary condition , the eigenvalue expansion problems of non - self - adjoint operator can still be discussed by using the residue method 对于非自伴dirac算子的特征展开定理已无法应用积分方程的方法,本文仍用留数方法对一个两点非自伴边界条件和一个非局部边界条件下产生的非自伴算子的特征展开问题进行了讨论,分别得到了它们的特征展开定理。
Abstract : this paper discusses high order numerical model of non - linear boundary equation . by using integral technique , the boundary condition problem is turned into a form initial condition problem . we construct 4 order numerical formula . the convergence theory is given and proved . the examples show that our method has fast convergence speed and less numerical time 文摘:讨论非线性边值问题的一种高精度计算模型.利用积分值将边值问题转化为形式初值问题,构造了一类四阶精度的计算格式,证明了收敛性.通过算例表明该方法收敛速度高,计算量小
Abstract : the mechanical analysis for arch bridge with flat hinge joints is a mechanical problem with non - linear boundary . mechanical analysis of methods at present is not clear , which can not calculate the arch bridge with changeable section and section with complicate shape . 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 . the method can apply to the arch bridge with any numbers of flat hinge joints and any shape section 文摘:平铰拱桥结构的受力分析属于边界非线性力学问题,目前的一些方法受力分析不太明确,对变截面、复杂形状截面等平铰拱桥无法进行计算.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