Furthermore, the author gives the oscillation criteria of some partial difference equation with continuous variables.
此外,作者还给出了一类具有连续变量的偏差分方程的振动准则。
In the second part, we mainly consider oscillations of solution of some linear and nonlinear partial difference equations with discrete variables and delays.
第二章主要是研究某些类型的线性或非线性的带有离散时滞的偏差分方程解的振动性的判别法。
In fault simulating, two very similar models of worn gear have been considered with partial difference for evaluating the preciseness of the proposed algorithm.
在故障模拟中,两种非常相似的磨损齿轮类型被视为以偏差来评估该算法的严谨性。
By means of the comparison theorem, and the oscillation of some non-linear partial difference equations is discussed and some concise conditions and authenticity are given.
给出系统振动的比较定理,利用比较定理讨论了一类非线性偏差分方程的振动性,给出简单的判别条件及证明。
This paper is concerned with oscillation of solutions of a class of nonlinear partial difference equations. Some sufficient conditions of oscillation for the equations have been obtained.
本文讨论了一类半线性偏差分方程解的振动性,得到了这类方程解的振动性的一些充分条件。
The mathematical model of the temperature distribution based on the analysis of material and energy flow in a molten carbonate fuel cell (MCFC) is a set of partial difference equation group.
根据熔融碳酸盐燃料电池(MCFC)电堆内部物质能量流动分析得出的温度分布数学模型是一组偏微分方程组。
The difference is subtle, and the end result is the same, but if you use the terms currying and partial application interchangeably within earshot of a functional programmer, count on being corrected.
这两者之间的差别非常微小,最终结果也是相同的,但是如果您在一名函数编程人员的面前混用局部套用和部分应用,那么他一定会纠正您的说法。
Leaving the phone plugged in overnight does not make a difference: the phone only USES the wall current to maintain a partial charge state.
即使是充一晚上电,也不不见得有什么区别:手机只是利用墙电来维持一个充电状态。
But this partial differential equation can not be directly integral, so usually use Navier method, Rayleigh Ritz method and finite difference method and other methods.
但这一偏微分方程不能直接积分,所以通常用纳维法、瑞利-里兹法、有限差分方法等方法求解。
Different personal variables cause partial significant difference on job satisfaction.
个人变项的不同在工作满意上有部分显著的差异。
The result shows that there is no significant difference on partial biological and quality character among three treatments, but there is a significant difference in yield character.
结果表明:三种处理在产量性状上与对照存在极显著差异,而株高、叶片数、分蘖数以及品质等生物学和品质性状与对照无显著差异。
The mixed partial differential terms of time variables and space variables in the pseudo-parabolic equation make the discussion of the difference scheme more difficult.
伪抛物型方程中关于时间与空间变量的混合偏导项给差分格式的讨论带来了一定难度。
Genotype difference and combing ability of barley anther culture response was investigated by the way of circulated partial diallel crossing.
用轮回式部分双列杂交法对大麦花药离体培养力进行基因型差异及配合力分析。
Genotype difference and combing ability of barley anther culture response were investigated by the way of circulated partial diallel crossing.
用轮回式部分双列杂交法对大麦花药离体培养力进行基因型差异及配合力分析。
A new technique is given here, which combines partial algorithm with scanning algorithm and obtains wave arrival times by solving eikonal equation with the use of finite difference method.
本文提出一种将局部算法与扫描算法相结合的、用有限差分解程函方程求取地震波初至时间的方法。
The difference approximation is called the partial discretization method, and the overall fitting the overall discretization method.
文中称差分近似为局部离散化方法,称整体拟合为整体离散化方法。
In this paper, the second order fully discrete difference method for a partial integro-differential equation is considered.
本文给出了数值求解一类偏积分微分方程的二阶全离散差分格式。
In this paper we constructed an exponentially fitted difference scheme for singular perturbation problem of hyperbolic-parabolic partial differential equation.
本文对双曲-抛物偏微分方程奇异摄动问题构造了一个指数型拟合差分格式。
Studying Brownian motion by the difference equation, We can find that the partial differential equation describing the Brownian particle motion is a diffusion equation in mathematical physics.
引入差分方程研究布朗运动,会发现极限情况下的布朗运动所遵循的偏微分方程就是数学物理方程中的扩散方程。
The difference method is efficient and practical method to solve the partial differential equation, which has some advantages of a little computational effort and high accuracy.
差分方法是解偏微分方程的有效而实用的方法,它的计算量小,精确度高。
This paper studies the necessary and sufficient condition of uniformly convergent difference scheme for the elliptic-parabolic partial differential equation with a small parameter.
本文研究小参数椭圆-抛物偏微分方程一致收敛差分格式的充要条件。
First, the partial differential equations are transformed into discrete space, discrete time nonlinear difference equations through characteristic method and finite difference approach.
首先,通过特征线法和有限差分法得到了时间离散和空间离散的非线性状态方程。
In solving partial differential equation (i. e. pricing model), the author adopted the finite difference method to get its numerical solution.
本文采用有限差分法求解偏微分方程(即定价模型)的数值解。
Permeance (P): The ratio of the gas transmission rate to the difference in partial pressure of the gas on the two sides of the film.
译文:气体透过系数(P):单位时间内单位压力差下稳定透过单位面积上单位厚度的试样的气体体积。
Evaluation relevant to the partial derivatives of the multivariable functions is often done in scientific computation, usually by means of the symbolic differentiation or the divided difference.
科学计算及其应用常常需要多变量函数的有关偏导数问题的计算,通常使用的计算方法是符号微分或差分近似。
One of the main methods to test the gas permeability is using partial pressure difference.
用压差法测试塑料薄膜的透气性,是一个长期使用的主流测试方法。
Calculation showed that when the heat flow is in steady state, temperature-increasing difference in inner, outer pipe walls bearable for partial corrosive pipeline represents a minimum value.
计算表明,当热流处于稳定状态时,局部腐蚀管道所能承受的内、外壁增温差为最小值。
The present paper deals with the sufficient and necessary condition of the final positive solutions of non-linear partial-difference equations and first presents the comparison theorem.
建立关于具有连续变量非线性偏差分方程存在最终正解的充要条件。
The present paper deals with the sufficient and necessary condition of the final positive solutions of non-linear partial-difference equations and first presents the comparison theorem.
建立关于具有连续变量非线性偏差分方程存在最终正解的充要条件。
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