查询词典 neumann boundary condition

In this thesis, the research on"the Nodal Green's Function Method For Cylindrical Geometry on Neumann Boundary Condition Based on Bessel Functions" is a pioneer work.

以上工作的完成，使该程序系统成为清华大学核研院堆芯物理设计和燃料管理的核心程序。

Secondly,"the Nodal Green's Function Method For Cylindrical Geometry on Neumann Boundary Condition Based on Green's Functions on slab geometry"is well improved.

论文对"基于平板几何格林函数的第二类边界条件圆柱几何格林函数节块法"做了重要改进。

The research on the improvement for the convergent quality of"the Nodal Green's Function Method For Cylindrical Geometry on Neumann Boundary Condition Based on Green's Functions on slab geometry"is an original work.

在本论文中，"基于贝塞尔函数的第二类边界条件圆柱几何格林函数节块法"在中子扩散方程求解方法研究领域中是首创的，属创新成果；关于改善"基于平板几何格林函数的第二类边界条件圆柱几何格林函数节块法"的收敛性能的研究也属创新成果。

This paper discussed a strongly coupled prey-predator model under the homogeneous Neumann boundary condition.

讨论了一个强耦合的Holling-Tanner型捕食模型，利用Harnack不等式和最大值原理给出了它正解的上、下界估计。

In addition to the existence of periodic solutions and the asymptotic behavior of general transient solutions, the uniqueness of periodic solutions for these systems with Neumann boundary condition are also considered.

作为一个推广，我们也讨论了带非线性Robin边界条件的混拟单调反应扩散方程组的类似问题。

A class of nonlocal reaction diffusion systems with the Neumann boundary condition that arose f rom the theory of ignition is studied.

研究了一类来源于燃烧理论的半线性非局部反应扩散方程组。

With homogeneous Neumann boundary value condition when the spatial dimension is one. Moreover, some criteria on the global asymptotic stability of the positive equilibrium points for M_

在齐次Neumann边值条件下非负整体解的存在性和一致有界性，并通过构造Lyapunov函数给出M

We cosider a class of semilinear elliptic systems with the Neumann boundary value condition by using variational methods, two existences theorem are proved for under critical exponents and critical exponents.

利用变分法讨论了一类带Neumann边界条件的半线性椭圆方程正解的存在性，并得到了在下临界指标时的两个存在性定理。

Are also given by constructing Lyapunov function. Finally, by applying the energy methods, Sobolev embedding theorems and bootstrap arguments, the global existence of nonnegative classical solutions to equations with homogeneous Neumann boundary value condition is proved when the space dimension is at most 5. Under certain conditions for the coefficients of the reaction functions, the convergence of the solutions is established for the system with large diffusion coefficients by constructing Lyapunov function.

的正平衡点全局渐近稳定的充分条件；最后，当空间维数不超过5时，应用能量估计、Sobolev嵌入定理和bootstrap技巧证明在齐次Neumann边值条件下非负古典解的整体存在性，并通过构造Lyapunov函数给出当反应函数的系数满足一定条件、扩散系数较大时该模型解的收敛性。

Using Mellin transform and adopting the mixed boundary condition for stress and displacement differences and affer solving a set of triple integral equations and a Neumann's problem, we obtained a fundamental solution for a single crack.

本文采用裂纹二侧应力差和位移差的混合边界条件提法，通过Mellin变换，在求解了一组三节积分方程和一个Neumann问题后，精确地求得了单裂纹基本解，利用此解给出了解决这类问题的一般方法。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了