速度函数

Through the present study, the velocity structure function based on locally averaged turbulent structure is proved to agree with Harr wavelet transform.

在研究过程中，验证了基于湍流结构局部平均概念的速度结构函数与Harr子波变换的一致性。

This paper studies the exponential stability of cellular neural networks with time- varying delay by making use of the homoeomorphism theory, the idea of vector Lyapunov function, M- matrix theory and inequality - technique, offering the grounds for uniqueness of equilibrium point existence and the global exponential stability and estimating the exponential convergence rate index.

利用同胚映射理论、向量Lyapunov函数思想、M-矩阵理论和不等式技术，研究了具有变时滞的细胞神经网络模型的全局指数稳定性，给出了判定平衡点的存在唯一性以及全局指数稳定性的一个判据，并且估计了收敛速度指标。

The experiment results on 13 well-known benchmark problems show that the proposed algorithm is capable of improving the search performance significantly in convergent speed and precision with respect to four techniques representative of the state-of-the-art in constrained optimization such as evolutionary algorithm based on homomorphous maps, artificial immune response constrained evolutionary strategy, constraint handling differential evolution, and evolutionary strategies based on stochastic ranking.

对13个标准测试问题的测试结果表明：与动态惩罚函数的进化算法、人工免疫响应约束进化策略、可行性规则的差分进化算法以及采用随机排序的进化策略相比，新算法在收敛速度和求解精度上均具有一定的优势。关键词：人工智能；差分进化算法；约束优化；随机排序

Some methods, in which synthesized theoretical seismogram of high frequency is taken as record signal and 20%random noise is superimposed on the seismogram, are used to analyze the theoretical seismogram. The digital experiment shows that in the correlating frequency range, Green's function method can measure precisely interstation phase velocity, but the results obtained by correlation and narrow band-pass filtering correlation methods are more dispersed.

以合成的高频理论地震图作为记录信号，并在理论地震图上叠加了20％的随机噪声，利用这些方法分析理论信号，数字实验表明：在相干频率范围内，格林函数方法能够精确测量台间相速度，而互相关法和窄带通滤波互相关法所得结果较为离散。

On the basis of existing LBM models for micro-flows simulation,the velocity correction function for Knudsen layer was introduced into the model.

在已有滑移区微流动LBM模型中引入Knudsen层速度修正，选取合适的修正函数表达式并依据动理论确定了可调参数的合理取值。

To cope with highly nonlinear, nondifferentiable and multi-peak objective function, evolutionary algorithms which have the advantage of global solution searching can overcome the drawbacks of conventional algorithms such as slow speed, relatively poor precision and convergence to local solutions.

针对微波领域中优化问题的目标函数的高度非线性、不可导、多极值等特点，利用演化算法的全局搜索特性，可以避免确定性优化方法收敛速度慢、精度低、易于收敛到局部极小值的缺点。

A wave function for laser dressed atom is derived as a perturbative solution of the time-dependent Schrdinger equation in the velocity gauge.

作为含时薛定谔方程的微扰近似解，在速度规范下给出了激光场中缀饰原子的一个波函数。

Differing from the feed-back error compensation method, the selflearning error pre-compensation method offered by the paper is based on both ANN and time series technique to obtain the error pre-compensating curve using the non-linear ANN pre-compensation model. Because of the self-learning character of the ANN, this new type of precompensation model can be self-adjusted.

与常规的反馈补偿方法不同，本文提出的自学习误差预测补偿方法，将时间序列预测与神经网络的自学习自适应优化建模技术相结合，利用神经网络非线性预测模型产生误差预补偿函数，并利用神经网络的自学习特性对所建预测模型进行修正，所以这种新型的误差补偿方法能够获得更高的误差补偿精度和控制速度，简单实用，适于推广，具有生产应用价值。

This represents great progress for multimedia compression techniques. Following the successes of system debugging, this dissertation also develops the system software and function library, especially the development of the IIC serial bus monitor program which can overcome the IIC controller's bug on successive operations, thus enhancing the performance of system reinitiation between frame compression operations.

结合系统平台的硬件特点，本文对多媒体软件开发和库函数的建立作了大量研究工作，特别开发了IIC串行控制总线的监控软件，弥补了IIC硬件控制器不能连续操作的缺点，使得系统初始化和帧间编码控制速度大大提高。

Due to the linear subjectional function and the linear fuzzy enhancement operator, the algorithm not only speed the process, but also voids the losses of particular information.

由于采用的隶属函数和模糊增强算子均为线性的，不仅能够提高增强的速度，而且也有效避免体数据场细节信息的丢失。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。