We analyze theoretically the existence of precursor anomaly migration and the nonlinear variation of migration velocity.
从理论上对前兆异常迁移性的存在与迁移速率的非线性变化进行了分析。
Synergistic effects, nonlinear variation, and difficulties in discounting the future make the intellectual problem difficult, but not (in principle) insoluble.
这项智力难题因协同作用，非线性变化，和考虑将来而变得困难，但(原则上)不是不可能解决。
By introducing the nonlinear variation weight and mutational operation into the standard particle swarm algorithm to ensuring the overall convergence and enhance the accuracy of convergence.
在标准粒子群算法中引入非线性变化权重和变异操作来保证全局收敛并提高收敛精度。
Repetitive control is used to reduce voltage distortion under nonlinear loads and instantaneous feedback control is designed to quicken the dynamic response process under abrupt load variation.
系统利用重复控制抑制非线性负载下的电压畸变，利用瞬时值反馈控制加快负载突变时的动态响应过程。
Based on the classical total variation restoration model, we design a new nonlinear algorithm of digital TV filter for image de-noising.
根据经典总体变差恢复模型，设计了一种新型的应用于图像去噪的数字TV滤波器的一种算法。
Nonlinear data exhibit considerable variation.
非线性数据变化较大。
The variation equation describing distance dependence of the beam waist of a fundamental Gaussian beam with high intensity propagating in logarithmically saturable nonlinear media has been deduced.
导出了在对数饱和非线性介质中传播的强激光基模高斯光束宽度随传播距离变化的方程。
A high efficient direct integration method is proposed for evaluating the variation effect of nonlinear numerical simulation results of geomechanics subject to multi-random parameters.
提出了一种用于评估多参数随机变异情况下岩土力学非线性数值模拟结果可靠性的多维高效直接积分型随机分析方法。
With nonlinear transformation, the high-resolution gray image was compressed to low gray-resolution image, so the detail variation of spectrum would be better reflected.
该方法通过非线性变换，将高灰度分辨率图像压缩为低灰度分辨率图像，能更好地体现语谱图的细微变化。
Combining the qualitative knowledge and quantitative mathematical information of system, the approach provides good control over the nonlinear time varying system with wide variation of parameters.
该方法充分结合系统的定性知识和定量数学描述信息，实现了参数大范围变化时变系统的良好控制。
The axial force of piles first increases with the depth and then decreases. The variation of negative skin friction with the depth of piles is nonlinear.
由于负摩阻力的作用，桩身轴力随着深度的增加先增大后减小，桩侧摩阻力沿深度呈非线性变化。
In this paper we consider second order nonlinear terms, set up more precise dynamic system's model and derive the computation formula of terminal perturbation deviation by state variation.
本文考虑到二阶非线性项，建立起更加精密的系统模型，推导出利用状态变分计算终端干扰偏差的公式。
This algorithm changes the form of nonlinear filter, and denoises the image by combining with the method of total variation minimization.
该算法改变了原算法中非线性滤波的方式，并结合总变分最小化方法对图像进行降噪处理。
The second variation, linear or nonlinear, gives the criteria of instability.
无论线性或非线性二阶变分都给出不稳定性判据。
The nonlinear equation for remote sensing of water vapor was linearized by means of variation method. The effective range of linearized equation is examined.
运用变分的方法将遥感水汽的非线性方程线性化，讨论了线性化遥感方程的适用范围。
Based on energy variation principle, the nonlinear control equations of elastics plate on (two-parameter) foundation including the coupled effect of the foundation are derived in this paper.
基于能量变分原理，考虑地基耦合效应，建立了双参数地基上弹性板的非线性静力平衡方程。
While for small clearance, there appear repulsion phenomena, and the variation of coefficients with attack Angle is nonlinear.
当物体离壁面很近时，出现排斥现象，水动力系数随攻角的变化呈非线性特征。
Hydrostatic transmission system is highly nonlinear and subject to severe model variation.
传动系统具有高度非线性特性，且易受模型变化的影响。
The 24-hour variation charts of nonlinear parameter indexes, including Comp, ApEn and CD, showed that the nonlinear parameter rose at night, and went down in the day time.
复杂度、近似熵及关联维非线性指标每小时各组动态变化趋势图存在白天低，夜间高的相同变化趋势。
Methods of constant variation are an efficient solution to all nonlinear differential equations.
常数变易法是求解非齐次线性微分方程的一种有效方法。
From the variation principle, an analytical solution of the tangential stiffness matrices with nonlinear effects geometrically, for two-nodal two-dimension curved beam element, has been derived.
利用变分原理，推导了两节点二维曲梁单元几何非线性的单元切线刚度矩阵。
As to the horizon motion system of Bridge Crane is a nonlinear, variation parameter and strong coupling system, the nonlinear PID controller is used for positioning and anti-swing.
针对桥式吊车水平运动系统是一个非线性、变参数、强耦合的对象，采用非线性PID控制器进行定位和防摆控制。仿真实验结果表明，系统具有良好的动态、静态特性和强的鲁棒性。
The problems summarized as below: it is a nonlinear and time-variation system with uncertainties, and it is more complex. So the high performance of this control system is required.
其主要表现在：系统越来越复杂、存在非线性、时变性和不确定性，从而对控制系统的各种性能要求越来越高。
On the basis of some hypotheses of the state variation of air, a general mathematical plant model is constructed. The model indicates that the system is an affine nonlinear system.
在对系统气体状态变化作一些合理假设的基础上，本文较为详细地推导出系统比较完整的数学模型。
The nonlinear equation for remote sensing of water vapor was linearized by means of variation method.
运用变分的方法将遥感水汽的非线性方程线性化，讨论了线性化遥感方程的适用范围。
The nonlinear equation for remote sensing of water vapor was linearized by means of variation method.
运用变分的方法将遥感水汽的非线性方程线性化，讨论了线性化遥感方程的适用范围。
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