在漂移区中考虑直流空间电荷场的影响。我们发现电子运动在该区服从一振荡方程；
We find out that, in drift, region, the motion equation of electron is an oscillation one, which influences the prcbunching of electrons.
根据非线性振荡理论和昆明地区的非线性振荡方程研究了昆明地区降水距平率系统演变的非线性特征及其演变规律。
According to the nonlinear oscillation theory and the obtained equation, the nonlinear characteristics and evolution law of Kunming precipitation anomaly system were studied.
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荡现象。
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.
本文考虑一类二阶及四阶线性和半线性抛物方程初边值问题的解的渐近性与振荡性。
This paper describes the asymptotic and oscillatory properties of solutions of initial boundary value problems of linear and semilinear parabolic equations of second and fourth order.
应用现代差分方程理论对这些数学模型解的渐近性态与周期振荡进行了详细的讨论研究。
The asymptotical behaviors and periodic oscillations have been studied by applying the modern theories of difference equations.
给出了描述具有几个光振荡周期的飞秒激光脉冲在非线性光纤中传输方程的解。
The solution of the nonlinear wave equation describing propagation of a femtosecond laser pulse with duration of several optical oscillation periods in a nonlinear fiber is presented.
结果发现可产生混沌振荡的非线性电路方程参数不是唯一的。
Demonstrated that nonlinear equation parameters of chaos oscillation is not exclusive.
本文通过计算得到了振荡偶极子周围的位移电流及位移电流线方程。
This paper got the displacement current about a oscillating dipole and the equation of displacement current line and discusses the property of its electromagnet field.
本章分别介绍了激光器的模式理论、速率方程的理论、泵浦光和振荡光的空间分布以及对单频检测装置。
This chapter introduced the theory of laser mode, the rate equation theory, the spatial distribution of the pump laser and the oscillating laser and the single frequency detection device.
方程的二阶近似解显示出非线性效应对振荡频率稳定度、振幅稳定度及波形正弦纯度的影响。
The frequency stability, amplitude stability and harmonic content can be deduced from the second order perturbation solution of that equation.
本文首先从流体力学基本方程出发，分析了振荡脉冲射流对流体的热交换与质交换能力的促进作用。
The promotion effect of fluidic oscillating jet on heat transfer and mass transfer has been analysed from the point of View of fundamental equations of fluid mechanics, at beginning of the paper.
由于对流为主的弥散方程具有双曲性质，中心差分格式虽然关于空间步长具有二阶精度，但会产生数值弥散和非物理力学特性的数值振荡，使数值模拟失真。
Due to the hyperbolic properties of convection-dominate dispersion equations, the central difference formula often cause numerical dispersion and oscillation even it has two-order precision in space.
刚柔耦合多体机械系统动力学微分方程组具有刚性和高频振荡的特点。
The dynamical equations of rigid flexible coupling multibody systems have characters of stiffness and high frequency oscillation.
在亚光速区，对处于相对论性振荡的纵等离激元色散方程进行数值求解，得到了朗道阻尼系数的数值解。
The landau damping rate is obtained by solving the dispersion equation of relativistic longitudinal plasmons with the sub-light-velocity numerically.
本文介绍了典型振荡反应的特点、机理、数学模型、动力学方程序及在化学和生物学中的某些应用。
This paper introduces the features, mechanism, mathematical model, dynamic equations of the classic chemical oscillation and some applications in chemistry and biology.
本文用符拉索夫方程和广义泊松方程得出原子核内具有特征振荡。
Vlasov equation and generalized Poisson equation are used here to obtain the energies of oscillations in nuclei.
推导了燃气振荡流方程，计算了对应不同燃烧室形状下燃气振荡流的共振频率。
The oscillation fluid equations are established and the resonance frequency of the oscillation fluid is calculated with different combustion chamber shapes.
对于非线性对流占优扩散方程，不仅可以消除因对流占优项引起的数值振荡现象，还可以加快收敛速度、提高计算效率。
For the nonlinear convection-dominated diffusion equation, this method can not only stabilize the numerical oscillation but also accelerate the convergence and improve the computational efficiency.
对方程作了数值解，模拟了具有几个光振荡周期的飞秒脉冲在单模光纤中的非线性传输。
By solving the equation numerically, the nonlinear propagation of femtosecond laser pulse with duration of several optical oscillation periods in single-model optical fiber has been simulated.
还讨论了速率方程给不出与激光弛豫振荡相符合的结果这一问题。
In addition, the problem concerning unsatisfactory interpretation for the relaxation oscillation of the laser pulse using the rate equations has also been discussed.
计算在非交错网格上进行，为了避免压力场的振荡，在连续方程中隐式地加入了压力的四阶数值耗散项。
The 4th order numerical dissipation for pressure was added in the continuity equation to avoid oscillations in pressure solution.
本文导出了描述可调谐脉冲te (A) CO_2激光器任何一条或多条激光振荡线的六温度模型速率方程组。
In this paper, we deduced the six-temperature mode rate equations that can be applied to one or multi-frequency oscillation in a tunable te (a) CO2 laser.
对高振荡微分方程给出一种好的数值解法是一件非常困难的事情。
It is very difficult to give a good numerical method for highly-oscillatory ordinary differential equations.
建立了转速小振荡时感应电动机的电压方程、电磁转矩和转矩方程，导出了异步转矩和阻尼转矩系数。
The voltage and torque equations of induction motor during hunting are formulated at first, then the asynchronous and damping torque coefficients are derived.
通过数值求解符拉索夫方程和泊松方程，研究了相对论效应和温度效应对等离子体振荡破裂的影响。
The influence of relativistic and thermal effects on plasma wave breaking has been studied by solving the coupled Vlasov-Poission equations.
对于非线性对流占优扩散方程，不仅可以消除因对流占优项引起的数值振荡现象，更重要的是可以加快收敛速度、提高计算效率。
For the nonlinear convection-dominated diffusion equation, the method can stabilize the numerical oscillation, accelerate the convergence and improve the computational efficiency.
简要分析了在考虑重力作用的情形下，带电粒子在恒定磁场和振荡电场中的运动状态，求得了其运动方程，并就拉莫频率和振荡频率的关系进行了讨论。
The motion equation of the moving charged particle is obtained, and the relation between the Lamor frequency a and the oscillation frequency wis discussed as well.
采用介观的化学朗之万方程研究了内噪音对于钙离子阵发振荡行为的影响。
The response of calcium bursting oscillation to internal noise is studied by solving mesoscopic chemical Langevin equations.
采用介观的化学朗之万方程研究了内噪音对于钙离子阵发振荡行为的影响。
The response of calcium bursting oscillation to internal noise is studied by solving mesoscopic chemical Langevin equations.
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