查询词典 approximate differentiability

In traditional finite difference schemes polynomial interpolation and divided differences have been taken to approximate the derivatives.

传统的差分格式用多项式插值和差商近似导数。

The results indicated that the mathematical model and developed quantitative method could better approximate the intrinsical properties of the ventricular cell.

在模型基础上定量分析了缺血细胞的电生理效应及三种因素在其中的不同作用。

Approximate solutions were found for the rate of growth of a bubble in the process of intumescence.

得到了膨胀过程中气泡生长速率的近似解。

Owing to the approximate and detail coefficients at each level after decomposition using undecimated wavelet transform have the same length as the original signal, the transform can possess time invariant property and retain more characteristics in time domain, and therefore improve the effect of denoising.

由于非降采样小波分解后的各层系数和原始信号的长度均相同，因此在具备平移不变性的同时还能保留更多的时域信息，从而可以提高信号的降噪效果。

Reusing iterative information ,an approximate inverse function is constructed byinverse interpolation.

重复使用迭代信息反插值构造逆函数的近似，一方面较只使用单点信息能更好地逼近隐式函数，另一方面直接得到显式近似解。

In this paper, a model predictive control scheme is proposed, which uses a set of neural networks to approximate the inverse mapping of the nonlinear block.

针对Hammerstein模型提出了一种基于神经网络的模型预测控制策略，采用一组神经网络拟合非线性部分的逆映射。

Firstly, by adopting the thought of Adomian's decomposition method, the generic dynamic model in mechanical systems are transformed into a standard first-orderdifferential-equations, and then the inverse operator method for the approximate analytic solution of nonlinear mechanical system is developed based on the exact solution in form.

主要研 究工作如下：利用Adomian的分解方法的思想，把机械系统中最一般的动力学模型转化为一阶标准型微分方程组，以形式上的精确解的表达式为基础构造了求解机械系统非线性模型近似解析解的逆算符方法；针对机械系统非线性模型的特点，提出了直接处理高阶方程的不降阶逆算符方法；证明了该方法的收敛性。

H. Meckl et al〔166〕—〔169〕, we propose an approximate inverse dynamics method featuring spectrum analysis and then discuss the restrictions.

2在柔性机械臂逆动力学方面，针对带一个转动铰的简单柔性机械臂，在Meckl等人工作的基础上提出了基于谱分析的构造性的近似逆动力学方法，并分析了应用限制条件。

We establish the relation of inversion formulas among generalized Radon transform with known weight functions, the exponential Radon transform and classical Radon transform, furthermore obtain approximate inversion formula of the exponential Radon transform, the idea of approach above is applied to contour reconstruction and is generalized to n-dimentional euclidean space case. We discuss the support theorem, range condition of the exponential Radon transform.

本文建立了带权广义Radon变换、指数型Radon变换与古典Radon变换反演公式的关系，从而得到指数型Radon变换的近似反演公式，并且应用这种思想方法于轮廓重构，并将这一结果推广到任意维欧氏空间的情形；讨论了指数型Radon变换的支集定理及值域条件。

The irrational impedance function is applied to the synthesis design of the regulating network[1][2], its regulating accuracy depending on the approximate times of the impedance function.

无理阻抗函数用于调节网络综合设计，其调节精度将取决于阻抗函数的近似次数。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。