Time variable

Based on this model, a discrete time variable structure controller is designed.

考虑切削过程扰动影响，建立了电流控制型磁悬浮主轴系统动力学模型，以磁轴承为控制对象，设计了基于自由递阶切换模式的离散变结构控制器，并进行了仿真研究。

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Application Research on time variable filtering with S-transform in denoising processing

S变换时变滤波在去噪处理中的应用研究

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Time Variable Method of Thermokinetics Chemical Reactions with Simple Order

热动力学时间变量法&简单级数化学反应

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Rejection and Replacement of Disturbed Data in the Measurement of Time Variable Data and Spectral Data

时变数据和谱数据测量中干扰数据的剔除与取代

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Design and Simulation of a Discrete Time Variable Structure Controller for a Brushless DC Motor Drive

无刷直流电动机离散变结构控制器设计与仿真

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Accurate time variable filtering through S-transformation

用S变换做精细时变滤波

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In this method, three shell displacements are first expanded in Fourier series in the circumferential direction, then an infinite number of decoupled partial differential equations containing a spatial variable and a time variable are obtained.

壳体的三个位移函数首先沿环向展开为Fourier级数，由此得到解耦的偏微分方程，它包括一个空间变量和一个时间变量。

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The L2 norm and energy norm error estimates are derived for the backward Euler scheme in time variable and the mortar element approximation in the space variables.

对时间变量采用向后Euler格式，对空间变量采用mortar元近似。得到L2模及能量模误差估计。

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Periodic solutions to neutral time delay differential equations with variable coefficients

变系数中立型时滞方程的周期解

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Robust Nonlinear Friction Compensation of Mechanical Servo System with Time Variable Parameters

参数不确定机械伺服系统的鲁棒非线性摩擦补偿控制

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By Galerkin's variation method of continuous time variable, the finite element equation of CDE is derived. It is a system of first-order ordinary differential equations with respect to time variable. Solving this system of equations, we yield whole process of solving CDE.

首先对连续时间变量用Galerkin变分方法导出对流扩散方程的有限元方程，它是关于时间变量的一阶线性常微分方程，进而求解该方程组，完成求解对流扩散方程的全过程。

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Discrete Time Variable Structure Control of High Speed AMB-Milling Spindle

高速磁悬浮机床主轴的离散变结构控制

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A Research on Evolving Model of Innovated Product Prices with Introduction of Time Variable

引入时间变量的创新产品价格演变模型研究

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By using Fourier's series, the sufficient and necessary condition is obtained for periodic solutions to neutral time delay differential equations with variable coefficients and, in the meantime, a formula of evaluation of period is given, also.

通过Fourier级数方法，得到时滞微分方程连续可微周期解存在的充要条件，同时为如何找周期提供了一个公式时间（英文）

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Then, considering harmonic vibrations of the system, the non linear partial differential equations are converted into ordinary differential equations through elimination of the time variable by using the Kantorovich time averaging method.

分析了系统的自由横向谐振动，借助Kantorovich平均法消去时间变量，将偏微分控制方程转化为非线性常微分方程边值问题。

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Filter Technique of Removing Correlated Errors Existing in GRACE Time Variable Gravity Data

GRACE时变重力场位系数相关误差的滤波消除技术

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The Range of Time Variable of Line Movement

直线运动时间变量的取值范围&对速度函数v（t）与时间变量t的定义域分析一文的补充

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Self& Compensating Controller for Time Variable and Fraction Time Delay System

带时变和分数时滞系统的自校正控制器

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He problem of design of variable structure control for nonlinear singular systems is considered based on linear time invariant singular system.

从线性定常广义系统出发，研究非线性广义系统的变结构控制设计问题。

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A New Kind of Recurrence Method of Predictive Equation with Time Variable Parameters

预报方程时变参数的一种新递推方案

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On the Inversion of Linear Time Variable Systems

关于线性时变系统的逆

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Determination of the Three-elements for One Order Electric Circuit Using Time Variable Method

由时变共用电路求一阶电路动态响应的三要素

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The freeway on-ramp control system is a nonlinear, time variable system.

高速公路入口匝道控制系统是一种非线性时变系统。

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This system realize the real time variable rate fertilizer by the crop growth.

本系统可以根据作物的长势实现实时变量施肥。

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Stabilization and control for a class of neutral type nonlinear time variable control system

一类中立型时变非线性控制系统的镇定与控制

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Another Weibull function with time variable on ordinary and accelerated life tests was obtained.

从三个角度分析并导出了寿命试验和加速寿命试验中以时间为自变量的威布尔分布函数。

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Design for Velocity Tracking System with Time Variable Load

考虑负载时变特性的速度跟踪系统设计

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By using Fourier transformation for space variable, Laplace transformation for time variable and convolution theorem for their inverse transformations, a general solution for dynamical problem of infinite beam on an elastic foundation is obtained.

然后对空间变量和时间变量分别进行Fourier变换和Laplace变换，利用逆变换褶积积分，得到了弹性地基无限长梁一般动力问题的解析解。

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An optical time domain reflectometer ( OTDR) and distributed optical fiber Raman temperature sensor ( DOFRTS) using correlation technique may has much better performance than conventional ones. This paper using FPGA designs a variable length and width adjustable of high speed Golay complementary code.

根据格雷互补码的产生原理，利用FPGA为硬件基础，设计产生了码元长度可变、码元宽度可调的高速率格雷互补码，可应用于光时域发射计及光纤拉曼温度传感器中提高其性能。

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Time variable measurement of high distinguishability in magnetostrictive liquid level sensor

磁致伸缩液位传感器中高分辨力时间量检测

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