Robust solution to vibration second-order Sylvester matrix equation and its simulation analysis 振动二阶Sylvester矩阵方程鲁棒解法及仿真分析
Impulsive Exponential Stabilization of a Class Second-order Differential Equation with Delay 一类二阶时滞微分方程的脉冲指数稳定性
The Oscillation Research about Two Kinds of the Second-order Neutral Differential Equation 两类二阶中立型微分方程的振动性研究
An important case is the linear homogeneous second-order differential equation with constant coefficients. 一种重要的情形是常系数二阶线性齐次微分方程。
The existence and uniqueness about semilinear second-order differential equation are established by using global inverse function theorems. 本文利用整体反函数理论,研究了半线性二阶微分方程周期边值问题,给出了周期解存在唯一性的充分条件。
An Investigation on Homing Phase Guidance Based on Second-order Nonlinear Equation of Relative Motion 基于二阶非线性相对运动方程的寻的段交会制导研究
Well, I have to solve this second-order equation which is something that you've all done in high school and you will find that that's the case when the time is plus two and when the time is plus four. 这得解一下,二次方程,你们高中的时候,应该经常做,结果很容易解出来,答案是时间,为+2和+4时。
It's a second-order equation in x, and is a parabola and a parabola has this shape. 这是一个x的二次方程,也是一个抛物线方程式,抛物线都长这样。
The driveline for a tractor vehicle is simplified as a 2-DOFs ( degree of freedom) torsional vibration system, and is described as a second-order differential equation. 将牵引车的传动系简化为一个2自由度的扭转振动系统,并以二阶微分方程描述。
The results revealed: nascent MnO_2 for As(ⅲ) has high removal rate, fast reaction and the adsorption kinetic date was described by second-order rate equation; 结果表明:新生态MnO2对As(Ⅲ)去除率高,作用速度快,作用过程符合二级动力学方程;
An inquiry is made on the expression of second-order differential equation in electromagnetic theory by applying exterior differential, Hodge star operator, codifferential, and Laplace-Beltrami operator. 探讨应用外微分、霍奇星算子、余微分及拉-贝算子表述电磁理论中的二阶微分方程。
This paper considered a second-order neutral equation with several days, and proved that the equation was oscillatory if and only if its characteristic equation had no real root. 本文探讨了带有多个滞量的二阶中立型方程,证明该方程振动的充要条件是特征方程无实根。
The second-order differential equation including elliptic integral is numerically solved by integral, and the non-linear oscillation of a charged point in a uniformly charged ring is discussed. 本文用数值方法求解含有椭圆积分的二阶微分方程,讨论了均匀带电圆环内点电荷的非线性振荡及其运动特征。
Comparison Principle for Viscosity Solutions of Dirichlet Problems of Nonlinear Second-order of Equation 一类二阶非线性方程Dirichlet问题粘性解的比较原理
In Chapter one and Chapter two, we consider the expanded mixed finite element methods and mixed covolume method for the initial-boundary value problems of Linear second-order integro-differential equation of parabolic type. 第一章所用的扩展混合元方法是在传统混合元基础上的一种推广,它较好地刻画了具有混合边界条件的初边值问题,同时避免了对小系数进行求逆。
Based on an approximate second-order equation of conversion point trajectory, authors propose an approximate formula of converted wave DMO smile. Authors also develop a fast algorithm to perform converted wave DMO in f-k domain. 在对转换点轨迹方程作二阶近似的基础上,导出了转换波DMO的椭圆近似方程,并在f-k域实现了转换波DMO的快速算法。
To the knowledge of the authors, singular second-order differential equation boundary value problems have been studied extensively in the literature. 对大多数作者来说,奇异二阶微分方程的研究已经有了一些初步的研究成果(参见文献[19])。
Numerical solution of second-order wave equation 二阶波方程的数值解
In the case where the deformations of rotational shells are axially symmetric, the set of equations reduces to a second-order differential equation directly by introducing the complex variable, of which the real part represents the angle by which an element of the meridian rotates. 在旋转壳轴对称变形情况下,通过引入复值变量,方程组直接转化为一个二阶常微分方程。的实部代表子午线元素的转角。
Beginning with the second-order difference equation for solving deflection of the beams, the present paper has obtained simple formulas of evaluating the deflections and angles of rotation by using Z-transformation. 本文从求解梁挠度的二阶差分方程出发,通过Z变换,最后推导出计算挠度和转角的简单公式,使计算过程简化。
The relation between the adsorption amounts of all samples and time obey Langmuir model and also followed pseudo second-order equation. 茶碱在气凝胶上的吸附量随时间的变化规律遵从Langmuir方程,也符合假二级动力学吸附方程。
The activation energy of the hydrolysis is 43.2 kJ/ mol evaluated by a second-order kinetics equation. 采用二级自催化反应动力学模型对动力学数据进行了拟合,得到大豆油在近临界水中水解反应的活化能为43.2kJ/mol。
A second-order differential equation of mode conversion of fast wave for fusion plasma is solved by a single step routine with automatic step varying. 用自动变步长的单步法程序,求解了聚变等离子体中快波模转换二阶微分方程。
The motion of a simple pendulum with varying length coupled with a vertical motion is investigated, the second-order differential equation set of the motion is obtained in terms of plane polar coordinates. 研究了一个变摆长单摆运动的例子,在平面极坐标系下给出了描述该运动的二阶微分方程组。
Multiple scattering correction, first-order differential equation and second-order differential equation are used for the spectral preprocessing, and the influence of the three pretreatment methods for modeling is discussed. 其中光谱预处理采用多元散射校正、一阶微分、二阶微分三种方法,并讨论了这三种预处理方法对建模的影响。
By drawing displacement function, the displacement differential equations are transformed to one eighth-order differential equation and one second-order differential equation. 通过引入位移函数,将位移型微分方程组变换为一个八阶偏微分方程和一个二阶偏微分方程。
By using the second-order Bessel equation and the method of steepest descent, we obtain the asymptotic behavior of the diffusion equation. 对于渐近性质,我们则利用二阶Bessel方程和最速下降法,证得分数阶奇异扩散方程是否为延伸的高斯分布。
The second-order dynamic equation is solved by iterative method, then the dynamic model is built. 采用迭代方法对其动力学方程进行了求解,建立了动力学模型。
Swelling dynamics of PAM/ GO hydrogels conforms to second-order rate equation. PAM/GO凝胶的溶胀行为符合二次速率方程。