查询词典 boundary

Boundary singular kernel method is adopted to modify EFG shape function to impose essential boundary conditions directly.

采用边界奇异核方法对EFG形函数进行修正，直接施加本质边界条件。

On the basis of Nagumo′s existence theorem for the singular case, we obtain the existence of solutions of singular equations satisfying nonlinear boundary value conditions and periodic boundary value conditions by means of approximations.

在Nagumo型存在定理的基础上，我们应用逼近的方法给出了奇性方程满足非线性边值条件和周期边值条件的解的存在性。

The examples given have proved the advantage of the Boundary Element Method. In the analysis of the fracture mechanics using Boundary Element Method, the calculation model of one-quarter singular element has been established, and has been proved its validity.

把边界元法应用于线弹性结构断裂分析中，建立了裂尖奇异区分析的四分之一奇异元计算模型，算例表明，用四分之一奇异元分析断裂力学问题是一种有效的逼近裂尖场的数值方法。

Combining with the element-free method,a boundary element method without singular integration is presented by using non-singular fundamental solution to establish the boundary integral equation for electromagnetic field.

用非奇异基本解建立电磁场问题的边界积分方程，将其与无单元法相结合，提出了电磁场计算的无奇异积分的边界无单元法，编制了相应的计算程序，计算结果表明，方法合理可行。

Feller(1954) identified one of the new boundary conditions as the one describing this phenomenon and introduced finite sojourn time at the boundary for one dimensional diffusion processes and referred to such a process as "elementary return process".

为刻划这一现象，1954年Feller在边界上引入了有限的逗留时间并且把这类过程称为"基本的返回过程"。

In this paper,the Riemann boundary value problem for bianalytic vector function s is investigated using the theory of boundary value problem for analytic functions,we have not only found the solution method for bianalytic vector function s,but also established an explicit form of the general solution and the conditions for the solvability of the above problem.

利用解析向量函数边值问题理论，提出了双解析向量函数的R iem ann边值问题，并研究了问题的解法和解的一般表达式及可解性条件，得到了相应的可解性定理，同样方法可解决多解析向量函数的边值问题

In order to test the feasibility of spectral element methods, time integral methods and absorbing boundary conditions for aeroacoustics, several programs based of Microsoft Visual C++ are presented for different time integral methods and boundary consitions.

为验证本文的谱元方法、时间积分方法和吸收边界条件对于求解气动声学问题的可行性，本文基于Microsoft Visual C++平台编制了分别采用不同时间积分方法和边界条件的谱元算法程序，计算结果证明了谱元方法的高精度以及两种时间积分方法的可行性。

Based on the current continuity equation, using spherical harmonic function expansion, where lower boundary condition is the surface atmospheric electric potential, upper boundary condition is the electric potential of the bottom of the ionosphere, and non-homogeneous current source function of the vertical dipole assumptions is used for the charging of thunderstorms, the state analytical solution of global atmospheric electricity model in lower atmosphere is gotten.

本文从电流连续方程出发，采用球谐函数展开法，边界条件采用下边界为地表大气电势，上边界为电离层底部电势，非齐次电流源函数项采用垂直偶极子假设。

But the change of humid boundaries is not in evidence like the heat boundaries. Before and after 1980, the Subhumid boundary and semiarid boundary move towards west or east by turns.

而干湿界线的变化却不如热量界线变化明显，80年代以前和80年代以后的湿润和半湿润的界线表现为南段东退北段西移。

The two sides of surveillant relationships are different in understanding and holding the boundary of surveillance. The cognition of two sides of surveillant relationships to the boundary of surveillance is subjective.

监控关系双方对于监控尺度的感受和把握是不同的，监控边界的感受带有很强的主观色彩，当监控者的监控程度达到一定的强度，也就是超过了被监控者的监控阈限时，就会产生全景敞视效应。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。