| 1. | Propagation properties of em wave in anisotropic layered media
各向异性分层介质的电磁波传播特性 |
| 2. | Reflection properties of layered medium
分层介质的反射特性 |
| 3. | Static green ' s functions in coaxial cylinder with stratified media
屏蔽同轴圆柱分层介质的静态格林函数 |
| 4. | Explicit finite element scheme for dynamic analyses of wave propagation in multi - layered media
分层介质中波动传播分析的显式有限元法 |
| 5. | The study of material and reflection coefficient of electromagnetic waves in layered medium
分层介质中电磁波传播的材料及反射系数的研究 |
| 6. | The analysis of the reflection characteristic of electromagnetic wave and elastic wave in multi - layer media
分层介质中弹性波与电磁波的反射特性 |
| 7. | First , the formula for average intensity of ocean reverberation is deduced on the basis of ray theon " for monostatic case , then it is proved by computer simulation and experiment data
本文首先从分层介质的射线理论出发导出倾斜海底收发合置浅海近程海洋混响平均强度的近似表达式，并对其进行数值分析与实验验证。 |
| 8. | The analytical mode is based on the theory of sound propagation in layered media . the concept of equivalent parameters is established . the absorption of sound energy by damping layer ' s is represented by use of complex sound impedance
解析模型以分层介质中的波动理论为基础，建立了等效参数的概念，并运用声阻抗的复数表示法把阻尼层对介质层声能吸收的影响都考虑进去，通过比较敷设消声覆盖层前后多层传递损失的差异来获得消声层的效率。 |
| 9. | The application of transverse resonance theory is firstly extended further from plane homogeneous medium to the inhomogeneous spatial region by primarily combining the current martcatili method . then the simplex method is used to calculate the source point " s best position , frequency and the correspond wavenumber of the region
重点结合已有的marcatili法，首次将横向谐振法从平面均匀分层介质中的应用进一步延伸到模拟地壳波导的三维非均匀空间区域中，再利用单纯形法，确定源点在该区域的最佳位置、最佳频率和对应的传播常数。 |
| 10. | Three finite - difference methods , i . e . , stagger grid , implicit and explicit algorithms , are analyzed in detail . multi - grid algorithm is firstly introduced in elastic wave simulation , to solve for the stability problem inherent in stagger grid and implicit algorithm , also for the efficiency problem inherent in explicit algorithm , and the precision , stability and efficiency for simulation of elastic wave arc increased by multi - grid method . phase - delay method is provided to effectively absorb boundary reflection and increase efficiency for wave motion simulation , based on phase delay and amplitude decaying features along wave propagation
在水平分层介质接收函数的波形反演研究的基础上，本文系统阐述了非均匀介质中弹性波传播数值模拟常用的三种有限差分方法：显式差分、隐式差分和交错网格法，首次将多重网格算法应用于弹性波方程的数值模拟问题，克服了交错网格法和显式差分法稳定性差，以及隐式差分法计算效率低的缺点，大大提高了弹性波数值模拟的精度、稳定性和计算效率。 |
