山区越岭公路选线研究

以朔州市右玉县长城板块旅游公路项目为依托,通过路线方案对比来简单探讨山区越岭低等级公路的一些设计要点。

Singular Perturbation of Two Points Boundary Value Problems for a Class of Third Order Quasilinear Differential Equations

In this paper, the fixed-point Theorem i s used to estimate an asymptotic solution of boundary value problems for a class o f third order quasilinear differential equation and the uniformly valid asymptot ic expansion of solution of any orders including boundary layer is obtained.

山区公路选线比选分析——以G331五标为例

山区高差大,地形复杂,以G331(第五标段)工程为实例,将初步设计的线位进行局部优化,选择更合理的线位,避免不同设计速度的路段频繁变化。通过路线方案优化来简单探讨山区公路的一些设计要点。

A polynomial Expansion Method and New General Solitary Wave Solutions to KS Equation

Using a polynomial expansion method, the general exact solitary wave solution and singular one areconstructed for the non-linear KS equation. This approach is obviously applicable to a large variety of nonlinear evolution equation.

Explicit Traveling Wave Solutions to Nonlinear Evolution Equations

First of all,some technical tools are developed.Then the author studies explicit traveling wave solutions to nonlinear dispersive wave equations,nonlinear dissipative dispersive wave equations,nonlinear convection equations,nonlinear reaction diffusion equations and nonlinear hyperbolic equations,respectively.