variable coefficient
变系数;[数] 可变系数
2025-12-18 08:01 浏览次数 16
变系数;[数] 可变系数
Variable-Coefficient Models变系数模型
Variable Rate Coefficient可变模型
variable convection coefficient变换热系数
variable weight coefficient变权重系数
variable e coefficient可变系数
variable ratio coefficient变比系数
variable seepage coefficient method变单元渗透系数法
variable permeability coefficient method变渗透系数法
variable coupling coefficient变耦合系数
the system with variable coefficient is also discussed.
对于变系数的微分系统也作了相应的讨论。
fdi; industrial agglomeration; variable coefficient model;
fdi;产业集聚;变系数模型;
the advantage of this scheme is very adaptable to obtain the solution of the equations with variable coefficient and can eliminate the numerical oscillations more efficiently.
该算法的优点是特别适用于求解变系数的对流占优扩散方程,能更有效地消除数值振蕩现象。
the result indicated that this method can guarantee the pointing accuracy better than 5 degree for this nonlinear, variable coefficient and cross coupling dynamics system.
仿真结果表明,对于具有非线性、变系数和交叉耦合的广义飞行器动力系统,主动磁控加重力梯度稳定可使卫星姿态达到优于5度的对地指向精度。
in this thesis, we mainly study supercloseness of quadratic serendipity block finite element method for three-dimensional variable coefficient elliptic problems.
本文主要研究三维变系数椭圆方程二次奇妙族有限元方法的超逼近。
using alternating segment explicit implicit method for the variable coefficient convection diffusion equation. the method has the obvious property of parallelism and is unconditionally stable.
应用交替分段显隐方法求解变系数对流扩散方程,此方法具有很好的并行性且无条件稳定。
the distribution of separate layer injection intensity appears lognormality, and the variable coefficient is one constant.
分层注水的层段注水强度服从于对数正态分布,并且其变异系数为一常数。
considering self-weight and construction damping, the bending oscillation model of vertical beam and its partial differential oscillation equation with variable coefficient are constructed.
在梁自重和结构阻尼一并考虑的情况下,建立直立梁弯曲受振模型和变系数偏微振动方程。
it can be applied to solve nonpositive definite or positive definite partial differential equation with arbitrary variable coefficient under arbitrary boundary condition.
它可以求解在任意边界条件下任意变系数正定或非正定偏微分方程。
in this paper, a cross-section function of brick chimney has been assumed based on traditional hypothesis and a variable coefficient free-vibrating differential equation has been derived.
本文假设了接近砖烟囱实际截面面积的函数,推出了一个变系数的自由振动微分方程。
it also gives out a variable coefficient density compensation formula used for measurement of mass flow of the low pressure saturated steam, and the features of this formula.
给出了一个用于低压饱和蒸汽质量流量测量的变系数密度补偿式和该补偿式的特色。
this paper, take the production of bellows for example, introduce the method of variable coefficient extension.
此文以波纹管生产为例,介绍了变系数拉伸法。
a sufficient condition for second order, third order and fourth order integrable linear differential equations with variable coefficient is given.
利用变换的方法,给出了二阶、三阶、四阶变系数线性微分方程可积的一个充分条件。
dependable index decrease when increase of variable coefficient of cohesion and angle of internal friction of slope.
当土坡的粘聚力变异系数,内摩擦角变异系数增大时,可靠指标有很大的下降;
the variable coefficient is 0.55% .
此方法的变异系数为0.55%。
the formula of solutions is established for the initial problem and period boundary value problem of first order variable coefficient linear impulsive differential equations.
给出了一阶线性变系数脉沖微分方程的初值问题和周期边值问题的唯一解的公式。
the differences of average contents and the variable coefficient of the heavy metals in different types of soil are smaller.
不同土壤类型平均重金属含量和变异系数差异均较小。
in the part three, the exact solutions of variable coefficient nonlinear evolution equations are obtained by using auxiliary equation method.
第三章利用辅助方程法求得了变系数的非线性演化方程的精确解。
a novel variable coefficient spatial filter is designed, which could effectively enhance the background difference image.
本文还设计了一种新的变系数空域滤波器,该滤波器能有效地对背景差图像进行显着增强。
the response computation of a two degree of freedom dry friction damped system with velocity dependent variable coefficient of sliding friction under harmonic excitation was discussed.
研究了两自由度滑动摩擦系数随相对速度变化的干摩擦振动系统简谐激励响应计算问题。
the solutions of interal form and the general solutions of some second order homogeneous linear differential equations with variable coefficient are given.
给出了变系数二阶齐次线性常微分方程的一种积分形式解和几类变系数二阶齐线性常微分方程的普遍解。
the two conditions of the second order nonlinear differential equation with variable coefficient are given and expounded with examples.
对二阶变系数非线性微分方程的常系数化给出两个使其可积的条件,并举例论证。
in this paper, we study the existence of multiple nontrivial solutions for the variable coefficient elliptic equations with critical sobolev exponents.
本文讨论一类变系数带临界指数的椭圆型方程,主要考虑上述问题的非平凡解的存在性,包括多解与非存在性。
and we also give some structure methods about nonzero special solution to the variable coefficient homogeneous linear differential equation of the second order.
并且本文也给出了一些求二阶变系数齐次线性微分方程非零特解的构造方法。