查询词典 structure equations

The Schroedinger Equation with unitary evolution equations is a matrix differential equations, so Wei-Norman decomposition can be used for solving the multi-level quantum systems.

Wei-Norman分解对于分析矩阵微分方程的解是比较成熟的理论，含有幺正演化矩阵的薛定谔方程是矩阵微分方程，所以可以利用Wei-Norman分解来分析求出多能级量子系统的解。

Based on the variation principle, the corresponding finite element equations for the thermoelstic and heat conduction equations are obtained.

根据变分原理，得到热弹体运动方程和热传导方程相对应的有限元方程。

In this thesis, in order to calculate the viscid effect, Euler equations+boundary layer correction method and N-S equations+S-A turbulent model method are introduced.

另外，本文在计算流场的粘性影响时，分别采用了附面层修正+Euler方程和S-A湍流模型+N-S方程两种方法。

Then, we offer two applications to nonlinear Volterra type integral equations and the initial value problems for ordinary differential equations in Banach spaces.

在第二节中，通过建立新的比拄定理，在反向上下解条件下，椰了BaDach 空间中下列一阶非混合型徽分－积分方程周用边位问题仔BVP） I y＝＝歹u.X。

And two halance equations and two vorticity equations corresponding to these f...

于是，我们得到了相应于这两个■的两个方程组，它们是：■此处▽是水平梯度算子。J是 A 和 B 的雅可比函数。

And two halance equations and two vorticity equations corresponding to these field are sol...

于是，我们得到了相应于这两个■的两个方程组，它们是：■此处▽是水平梯度算子。J是 A 和 B 的雅可比函数。

The flow resistance and the phase permeability and the coupling of the flow between the reservoir and the wellhole were adopted to admend the deliverability equations of the horizontal well, which improves the applicability of the formula and the adjusted deliverability equations can guide and serve in the fields production with the the horizontal well.

本文以评价边底水油藏水平井产能及影响因素为总体目标，在国内外文献调研基础上，采用镜像反映原理和势的叠加理论推导出边底水油藏水平井产能公式，然后考虑完井、多相渗流及井筒压降对产能的影响，提出了利用流动阻力、相渗透率及井筒与油藏流动耦合修正水平井产能的修正方法，提高预测公式的适用性，为边底水油藏水平井生产提供了指导作用。

In the context of a system of barotropic shallow-water equations and Boussinesq approximate equations for two-dimensional meso-scale transversal wave disturbance in zonally sheared base flow, study is performed of the physical process of the meso disturbance propagation along the flow, indicating that such vortex Rossby waves are separated into two kinds. The first kind VRW is produced owing to the second-order horizontal shear in the flow or due to the meridional change in vertical vorticity of the flow, i.

本文使用正压浅水方程组以及纬向切变基流下二维中尺度横波型扰动的Boussinesq近似方程组，分析了这种沿着基本气流方向传播的中尺度扰动的波动传播物理过程。

The method in this paper abandon thisreinitialization step by discreting the convection terms in governing equations usingspecial schemes borrowed from conservational law equations.

通过对控制方程中输运项离散方法的特殊处理，本文的方法屏弃了这个重新初始化步骤。

Based on the basic equations of electromagnetic waves transmit in waveguide, then focus on three different geometric border waveguide (rectangular, deltaic, cylindrical) for discussion ,the basic equations of electromagnetic waves in rectangular waveguide , deltaic waveguide and cylindrical waveguide are got.

本文在得出求波导中电磁波的基本方程后，针对三种不同几何边界的波导管进行讨论，导出了电磁波在矩形波导、三角形波导和圆形截面的空心波导中传播的基本方程。

You'll be in trouble it you don't watch out .

如果你不注意，你会有麻烦的。

Shaped like a biconvex lens.Of, relating to, or having the form of a hyperbola.

双曲线的属于双曲线的，与之有关的，或有双曲线形状的