time derivative的例句大全

The system consists of a stable linear time invariant system in its forward loop and dynamic uncertainties in the feedback loop, which can be described by an uncertain operator with its input time derivative satisfies integral quadratic constraints.

所考虑的系统由正向通道的线性时不变稳定系统与反馈通道的不确定动态特性所构成的闭环系统。反馈通道的不确定性由输入导数满足积分二次约束（IQC）的非线性算子描述。

I'm going to take the time derivative just as I did in the case of the spring.

我将要提取时间，就像我在，弹力那个例子里那样。

The time-varying delay is assumed to be bounded and its time derivative is smaller than some positive constant.

文中假定时变时滞是有界且其变化率小于某一个正常数。

According to theoretical analysis, the time derivative curves of water-oil ratio can be used to diagnose the reasons of water output in oil well.

为提高油藏调剖堵水的成功率，必须搞清油井的出水机理及主要影响因素，利用油井水油比对时间导数曲线的形状，根据理论分析结果，可以判断油井出水的原因。

the limit of this quotient as the time of travel becomes vanishingly small; the first derivative of distance with respect to time.

瞬时速度当运动时间小到可以忽略时，此商数的极值；距离相对于时间的一阶导函数

The storage time of derivative solution also have greater impact on the accuracy of the detection.

并且提取液衍生化后放置时间对检测的准确性也有较大的影响。

Moreover, due to the dynamic equations of LPMs with second-order derivative terms in time, the resulting structure-foundation-soil system can be solved by an explicit time-integration method.

此外，由于模型的动力方程具有二阶时间导数项，因而应用本文模型的结构–基础–土系统可以采用显式时间积分求解。

The partial derivatives of second order to the innovation time and spillover effect for the expected net revenue function were obtained to establish the partial derivative of first order for the correlation between the optimal innovation time and spillover coefficient.

将该收益函数对创新时间和溢出效应系数变量求出二阶偏导数以建立最优创新时间和溢出效应系数之间的一阶导数关系。

This technique utilizes characteristic points and slope of characteristic straight line on log-log plot of pressure derivative vs time to calculate parameters quickly and accurately.

该方法利用压力导数与时间双对数图上的特征点和特征直线的斜率来计算参数，快速、准确。

For the first time, derivative distribution of velocity in cell is presented and some new conclusions are obtained.

首次给出了电池内的速度导数分布，得出了一些新的结论。

The referential time is derivative; it is extracted from the reflecting time.

指称性时间是派生性时间，是对呈现性时间提取和认知加工的结果。

There were several regime changes during my time in the derivative department.

我在衍生工具部门期间，有过几次重要的人事变动。

Firstly, we give out the numerical approximation of time fractional Riemann-Liouville derivative.

首先我们给出时间分数阶Riemann-Liouville导数的数值近似。

With mixed finite element method, the unknown function value is got, at the same time more accurate derivative is come up. The two-grid method divides the domain for two times.

混合有限元方法在求解函数值的同时得到导数值，而且精度比通过函数值差商的结果要高；两重网格算法对求解区域进行两次剖分，将非线性迭代归结在粗网格上进行。

The boundary conditions of reservoir has obvious influence on the pressure response, compared with constant-pressure boundary condition, sectional constant-pressure boundary condition obviously postpones the time of pressure derivative curve dropping;

油藏的边界条件对油藏的压力动态存在明显影响，与定压边界条件相比，分段定压边界条件明显延迟了压力导数曲线下掉的时间；

Robust stabilizability of time delay and its derivative dependent in linear systems with uncertainty

线性不确定系统时滞及时滞微分依赖的鲁棒镇定性

At the same time, the inversion algorithm of Central Loop Transient Electromagnetic Method ( CLTEM) for all time apparent vertical conductance and apparent depth was proposed by using EMF and its first derivative.

通过利用感应电动势及其一阶导数表达式作简单数学推导，给出了全区视纵向电导与视深度的反演算法。

hierarchical sliding mode controller is designed to control trolley position and load swing. zero vibration and zero vibration derivative time delay filter are designed to further reduce residual vibration of the load.

利用分层滑模控制器来控制起重机小车位移和负载摆动，分别设计零振动型和零振动微分型时滞滤波器进一步减小负载的残留振荡，使系统具有良好的动态性能和强鲁棒性。

So the first thing I have to do, I have to find what the second derivative is of x as a function of time.

因此我首先要做的，就是发现，x关于时间的函数的，二次导数。

Objective To investigate the effects of hematoporphyrin derivative ( HPD) in different concentrations on photodynamic therapy for human esophageal cancer cell line Eca-109 in vitro at various time points.

目的：探讨血卟啉衍生物（hematoporphyrin derivative，HPD）孵育浓度和孵育时间对人食管癌细胞Eca-109体外光动力疗法（Photodynamic Therapy，PDT）效应的影响。