第一章有限差分方法主要内容是一阶和二阶的两点式、三点式和五点式差分方案。
The main contents of first chapter are several difference schemes of first-order and second-order differential equations.
用交替分组显式(age)方法求解了差分方程，方法便于并行计算。
The difference equations are solved by the alternating group explicit (AGE) method which is specially suitable for parallel calculations.
然后，将差分公式展开，得出了直接用自变量的多项式形式表示的改进的EVERETT插值公式。
Then an improved EVERETT interpolation formula in the form of polynomial of the variable is obtained by developing the differential form.
根据喉部沉积的传热模型建立了偏微分方程组，采用有限差分完全隐式格式进行数值分析计算。
On this heat transfer model the differential equations were based, and the finite difference complete concealed grids were used in the numerical analysis computation.
提出了采用反馈控制方法求解隐式差分方程的方法。
Feedback control method is used to solve implicit difference equation in this paper.
结果表明，多参考点互相关差分模型能够有效地进行环境激励下的模态识别，并且多项式特征值法比增广矩阵法所得结果更好。
It shows that the presented method can be used to identify modal parameters effectively under ambient excitation and that the polynomial eigenvalue method is superior to the augmented matrix method.
基于MIMD并行计算机模型，本文讨论了CFD问题应用显式有限差分方法的并行化问题。
Based on MIMD parallel computer model, parallel implementation of explicit finite difference methods has been discussed for computational fluid dynamics (CFD) problems.
建立了考虑列车管泄漏的连续性方程，给出一种求解压力速度耦合方程的显式有限差分算法。
We have established the continuity equations under train pipe leakage condition and presented an explicit finite difference method to solve the pressure-velocity coupling equations.
基于甲烷气体的红外光谱吸收特性，研究了长光程差分吸收式甲烷气体检测的方法。
Based on the infrared spectrum absorption characterization of methane gas, the long optical distance differential absorption method for methane detection is studied.
本文介绍了基于广角隐式有限差分单程波传播算子的起伏地表叠前深度偏移方法，并对SEG山前带推覆构造模型进行了检验。
The paper introduced the prestack depth migration from relief surface based on implicit wide-angle finite-difference one-way propagation operator and used SEG piedmont nappe structure model for test.
数值计算中采用了分解算法及隐式时间差分方案。
Splitting method and implicit time difference scheme are used in the numerical calculation.
差分方程隐式部分采用了LU- SGS方法以避免矩阵运算，对化学反应和振动能量源项采用预处理矩阵以解决刚性问题。
The LU-SGS method is used in implicit part of the difference scheme to avoid matrix operations. The preconditioning technique is used for solving stiffness problem.
本课题第一部分的任务是设计一种差压式流量计的差压发生器。
In this thesis, the first part is to design a differential pressure (DP) flowmeter.
提出了一种应用于流水线型模数转换器(adc)的增益提高型套筒式全差分跨导放大器(OTA)的设计与分析方法。
This paper describes the design and analysis of a fully differential, gain-enhanced CMOS telescopic operational transconductance amplifier (OTA) used in a pipeline analog-to-digital converter (ADC).
流场求解时采用中心差分的有限体积方法对空间通量项进行离散，采用显式推进方法进行时间方向的积分。
The spatial flux terms are discretized by using central difference scheme and the time integration is performed by using explicit scheme in the flow solver.
差压式变送器是电厂常用的一种十分重要的测量元件。
The differential pressure water level transducer is an important measuring element commonly used in power plant.
采用分离式差分标定方法实现对单摄像机的高精度标定。
The difference calibration and separation patterns are used to calibrate a single-camera with high precision.
由于该方法采用显式差分方法和自动接触检索技术，故尤其适合于求解弹塑性、大变形和动力问题。
It is especially suitable for analyzing problems of nonlinear, large deformation and dynamic systems due to the explicit finite-difference scheme and the automatic contact detection skill.
显然，差分算子及其逆算子是阶乘幂多项式的方便工具。
Clearly, the difference operator or sum operator is the convenient tool for the polynomial of factorial powers.
提出一种基于半导体器件漂移扩散模型并结合交替方向隐式时域有限差分(AD I -FDTD)法的新型全域FDTD法。
A novel global FDTD scheme based on a drift-diffuse model of semiconductor combined alternating direction implicit finite-difference time-domain (ADI-FDTD) method is presented in this paper.
主要构造了求解一维隐式差分方程的四点嵌套迭代并行算法，并证明了它的收敛性。
The focal point is to construct a new embedding overlapped iterative algorithm for solving one-dimensional implicit difference equations.
讨论了用隐式完全守恒差分格式求解流体力学方程组，用变分原理求解热传导方程等特点。
Features of solving the hydrodynamic equations by the fully conservative implicit difference scheme and solving the thermal conductive equations by the variational method are discussed.
提出了一个计算有效的隐式差分近似。
A computationally effective implicit difference approximation was proposed.
采用斜向差分算子，建立斜向隐式差分格式，再结合边界条件，对扩散方程进行求解。
Based on the skew direction difference operator, the implicit skew difference schemes were constructed, and the boundary condition was unified, to solve the diffusion equation.
该系统采用隐式有限差分方法计算生产过程中温度的演变及最终产品的各项性能。
Ltd... This system was adopted Implicit Finite Difference Time Domain method to calculate temperature evolution during the production process and predict final properties.
采用有限差分方法对膜式水冷壁这一形状不规则的管壁进行温度场分布计算。
With the help of a finite difference method a temperature field distribution calculation is conducted of a membrane water wall, a tube wall with an irregular shape.
控制方程是一维非定常气体动力学偏微分方程组，用隐式中心差分结合特征线法解算。
The numerical solution of the governing equations, pertaining to one-dimensional unsteady gas dynamics, utilizes an implicit finite-difference scheme combined with the method of characteristics.
研究了差分吸收式光谱吸收型光纤气体传感器。
An easy realizable spectrum absorption type optic fiber gas sensor was studied and discussed.
对建立的特定模型进行了ADI交替隐式差分求解。
Alternative direction implicit technique (ADI) is used to solve specific SDI model developed by the authors.
对建立的特定模型进行了ADI交替隐式差分求解。
Alternative direction implicit technique (ADI) is used to solve specific SDI model developed by the authors.
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