列出三个离散边界。
导出了关于混合模的耦合边界积分方程组及其退化形式，并用矩量法将之离散为齐次代数方程组，从而得波导的混合模传输常数；
The coupled boundary integral equations and their reduced forms are deduced for hybrid mode problems, and these equations are discreted into a system of linear algebraic equations by moment method.
采用边界离散方法对具有辐射换热边界的平面非规则域内稳态温度场进行了分析，得到了级数形式的解。
The steady temperature field in irregular plane domain with radiation heat exchange boundary is analyzed by the boundary discrete method, and the solution in form of series is obtained.
对离散方程采用线超松驰方法迭代求解，在亚音速与超音速气流共同存在的出口边界分情况进行了处理。
A special treatment is made in outlet boundary in which the subsonic and supersonic flow exist commonly. Block-Line-Gauss-Siedel method is used to solve THD differencing equations.
第二章：离散曲面的边界检测。
根据波在人工边界的放大效应和在有限离散模型中多次反射的概念在频域内阐明了这一常见的振荡失稳的机制。
Mechanism of the oscillation instability is then illuminated in frequency domain by amplification at the artificial boundary and multi-reflection of wave motion in a finite discrete model.
根据输送边界条件，给出了动态模型方程的数值计算方法、管道离散格式、参数存储方法和差分方程。
Based on transmission boundary condition, gives calculation method for value of dynamic model equation, pipeline discrete form, memory method for coefficient and difference equation.
建立了适体坐标系下的离散化控制方程组，采用附加源项法对控制方程组的能量和动量边界条件进行了离散。
The additional source term method is utilized to discretize both energy and momentum boundary conditions and the discretized governing equations in body-fitted coordinates are established.
采用样条插值函数将均匀介质的边界积分方程离散为代数方程组。
The boundary integral equation in homogeneous media was dispersed into algebraic equations through the use of spline function.
采用有限容积法离散方程，附加源项法处理边界条件。
The finite volume discretization method and treatment of boundary condition were presented.
本文将离散的局部透射边界与集中质量有限元方法相结合，用于模拟粘弹性成层介质中的稳态波动。
In this paper, a discrete local transmitting boundary is combined with a lumped-mass finite element technique for simulating steady wave motion in the viscoelastic layered medium.
结合范式方法对传输控制协议和随机早期检测(TCP -RED)离散反馈系统中出现的不同种类的边界碰撞分岔现象进行了分析。
Various types of border collision bifurcations occurring in a discrete feedback transmission control protocol-random early detection (TCP-RED) system are analyzed based on normal form method.
建立了供热管网直埋、地沟敷设管道的二维数学模型，通过边界离散方法进行了求解。
Develops the two dimensional mathematical models for direct-buried pipes and in-duct pipes and solves them using the boundary discretization method.
本文首先通过实证研究给出了单期离散的TSF模型的有效边界和最优解。
The paper, first of all, studies the discrete Single-period TSF Model, and the efficient frontier and the optimal solution are given by evidence.
为了对直埋管道保温层及其土壤邻域的温度场进行较精确的分析，采用保形映射、分离变量和边界离散法对地下直埋管道的温度场进行分析，得到了级数形式的解。
The temperature field around a straight buried pipe was analyzed using conformal mapping, separation of variables and boundary discretization. A series solution was obtained for the temperature field.
介绍离散形式下的曲面边界检测问题及研究进展。
In this chapter the problem and recent developments about boundary detection for surfaces in discrete forms is summarized.
利用构造出的多边形有理插值，采用凸多边形逼近任意凸域，通过区域边界温度离散值，插值近似区域内的温度场分布。
A convex domain is approached by a convex polygon, and the approximated temperature distribution within the domain can be interpolated with the temperature data at the boundaries of the domain.
边界积分方程的离散基于常数元模式。
块离散余弦变换在低比特率时其恢复图像的块边界上会出现明显可见的方块效应，从而降低了图像的视觉质量。
The block-Based Discrete Cosine Transform (BDCT) suffers from visible blocking artifacts between adjacent image blocks at low bit rates, which reduces the image visual quality.
其收敛性的证明是依据其渐近扩散展开式，在边界层上得到的误差估计逼近其离散纵标方法的解。
Our proof of the convergence is based on an asymptotic diffusion expansion and requires error estimates on a matched boundary layer approximation to the solution of the discrete-ordinate method.
通过界面位移可以简洁地将位移和力的边界条件引入离散系统的控制方程，也可以方便地求解节点位移。
According to the seam displacement, all kinds of boundary condition can be introduced and the nodal displacement can also be calculated easily.
该算法中的数值离散网格可与任意复杂边界形状吻合一致。
The numerical discrete mesh of the algorithm can fit the arbitrary boundary well.
采用离散涡方法数值仿真了不同来流攻角下，固定与动边界叶栅绕流。在设计工况时流动接近定常流动。
The unsteady flow past stationary and oscillating cascade for off-design performance respectively are simulated numerically with the Discrete Vortex Method.
我们用离散元(DEM)方法研究了这种运输机在水平配置时的流动机制，施加周期性边界条件并忽略流动介质的存在。
We investigate the flow mechanism of this conveyor in a horizontal configuration by a discrete element method (DEM), applying a periodic boundary and omitting the existence of fluid medium.
裂谷是一个杰作例子，一个离散板块边界。
The rift valley is a classic example of a divergent plate boundary.
通过极大化该边界获得最优投影向量，同时避免因类内离散度矩阵奇异导致的小样本问题。
Through maximalizing the margin, we can obtain the optimal projection vector, and avoid the small sample size problem due to singularity of the within-class scatter.
文中给出了流函数方程及边界条件的坐标转换形式和离散格式，采用了强隐式(SIP)迭代法，分别对具有弓形和半弓形突体的直管进行了计算。
In this paper, the transformed forms of the flow function equation and boundary conditions and their difference expressions are given, and Strongly Implicit Procedure (SIP) iteration is used.
本文提出“相对密度”的概念控制区域边界线段的离散，进而控制整个区域的网格密度；
The concept of relative density is presented at the first time to control the borderline separatingand to control the mesh density of the whole area further.
利用有限差分技术对通用方程进行离散化，同时采用贴体坐标较好地解决边界不规则的问题。
The problem of boundary irregularity is solved by using finite differential technology and body fitted coordinates.
在分析离散滞后变结构控制系统中抖振产生的原因基础上，提出了三种改进的方案，即边界层衰减法，切换函数衰减法以及智能控制法。
After analyzing the causes of chattering, three improved strategies are developed, they are boundary layer decay strategy, switching function reduction strategy and intelligent control strategy.
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