查询词典 dimensional equation

The diffusion equation describing the light transportation in two dimensional two layers dental model with finite size is solved by finite element method,and the optical intensity distribution inside the dental tissueis is obtained.

利用有限元方法对光在二维牙齿双层有限尺寸模型中传输的扩散方程进行求解，获取了光能在组织体内部的分布情况，并对牙釉质和牙本质在不同光学参量模型下的光学穿透深度进行仿真分析。

Firstly, the basic principle of Finite-Difference Time-Domain is introduced and the 2-dimensional FDTD equation is derived from the Maxwells equations, calculated by setting up the appropriate excitation source, cell size, the interval of space and time.

首先，介绍了时域有限差分法的基本原理，从麦克斯韦方程出发，建立二维空间中的时域有限差分方程，通过设置合适的激励源、网格尺寸、空间和时间步长进行计算。

In this paper we propose a one-dimensional muonic atom model, on which the time-dependent Schrdinger equation is numerically solved by Crank-Nicholson method.

本文提出了一个一维μ介子原子模型，用数值积分方法求解了在超强激光场作用下该模型原子的含时Schrdinger方程，得到了它的高次谐波发射谱。

In the second capter, we give the fundamental solution of the n-dimensional transport equation.

第二章导出了n维输运方程的基本解。

Given solution of a special kind of wave equation in n-dimensional space.

本文给出了n维空间中一类特殊波动方程求解方法。

Based on unsteady N-S equation of three dimensional and compressible viscous fluid, the aerodynamic performance for the fast special container flat wagon at the speed of 160 km/h was calculated numerically by adopting the technology named slippage grid.

摘 要：利用三维、可压、非定常N-S方程，采用滑移网格技术对我国正在研制的160 km/h快速集装箱专用平车与动车组分别在明线和隧道内会车时的气动性能进行数值模拟。

The well-known empirical e-lgσ' relation is introduced into the study on one-dimensional nonlinear consolidation of one-layered soil under cyclic loadings. The corresponding consolidation equation is established with the assumptions that the decrease in permeability of soil is proportional to the decrease in compressibility during the consolidation process and that the distribution of initial effective pressure does not vary with depth.

将孔隙比e与有效应力σ'关系引入循环荷载作用下单层地基的一维非线性固结问题的研究之中，通过假定土体中的初始有效应力沿深度均匀分布和固结过程中上体渗透性的降低与压缩性的减小成正比，建立了低频循环荷载作用下单层地基的一维非线性固结问题的固结方程。

In this section we will increase our quantum-mechanical repertoire by solving the Schroedinger equation for the one-dimensional harmonic oscillator.

本节我们将用求解一维谐振子的薛定谔方程以提高我们的量子力学技能。

Moreover, the first-quantized theory of photons is established, and a quantum-mechanical equation of photons inside a waveguide is presented, these are important for us to study photons locality in three dimensional spaces.

其中给出了光子的一次量子化理论，建立了波导内光子的相对论量子力学方程，这些研究对于光子的空间局域性理论研究有着重要意义。

Based on a new three-dimensional topology-related grain growth rate equation proposed recently by MacPherson and Srolovitz, a set of analytical quasi-stationary grain size distributions were obtained.

以MacPherson-Srolovitz提出的三维个体晶粒长大拓扑依赖速率方程以及三维晶粒组织的晶粒尺寸--晶粒面数间的抛物线型统计关系为基础，导出了相应的描述三维准稳态晶粒尺寸分布的函数族。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新