在低频分量部分,基于HVS视觉模型,将水印信号逐点变化地嵌入到原始图像中;
In low frequency sub band, the watermarking is embedded into host by the way of pixel-to-pixel embedding according to HVS model.
进行系统低频减载方案设计时,简单的频率响应模型由于未考虑系统电压对频率过程的影响而导致不少情况下无法适用。
During the design of under frequency load shedding (UFLS) schemes, some simple models for frequency dynamics analysis are obviously inadequate since they do not take system voltage into account.
文中详细介绍了如何建立用于求解小尺度封闭空间低频声传递函数的三维有限元素模型。
This paper introduces how to establish Three-dimension finite element model to solute low frequency sound transfer function in small-enclosed room.
结论:应用低频短间隔电脉冲刺激大鼠海马或杏仁核可快速建立稳固的动物癫癎模型。
Conclusions: Stimulating the hippocampus or amygdala by low frequency and short intervals electric pulse could establish rapidly stable animal model for epilepsy.
针对近年来电力系统低频振荡中出现的非线性奇异现象,阐述了发生这种现象的机理,并在文献1的基础上,把发电机的模型扩展到四阶。
For the nonlinear singularity phenomenon of power system, it is stated the mechanism of phenomenon. On the basis of references 1, the generator model is expanded to four dimensions.
主要包括我们提出的玻璃化转变机制的串模型、发明的一种液态低频力学谱方法、以及用该方法对水的玻璃化转变的表征。
It includes the proposed string-model for the glass transition, the invented low-frequency mechanical spectra in liquids and the indicating of the glass transition in water by this method.
在微波暗室静区反射电平计算时常采用点源发射模型模拟天线的特性,它适用于低频段或方向性差的天线。
In calculation of reflected level of quiet zone in anechoic chamber, a spot emission model is often used to simulate antennas characteristic.
首先处理低频和中频不稳定性的模型。
Low and intermediate frequency instability models are taken up first.
为了实现控制的方法,电感两端电压的低频内容的数学模型。
In order to realize the control method, the mathematical model of inductor voltage low frequency content is set up.
最后研究了低频uwb - SAR系统信息处理模型。利用该模型分析了天线方向图和系统的冲击响应函数。
Finally, the information process model of the low frequency UWB-SAR is given, and antenna pattern and the impulse response function of the system are discussed.
同时算法结合了人眼视觉模型,有效地保护了图像的低频部分和强边缘部分。从而确保了加密图像的视觉效果。
At the same time, combined with the human visual model, our algorithm guarantees the visual impression and protects the low frequency part of image efficiently.
低表面能涂层涂覆在铝合金模型上,考察了其在水筒中低频段降低流噪声的效果。
The flow noise reduction of al alloy model with low surface energy coatings have been studied in a water tunnel.
通过对开关函数求傅里叶级数,将开关函数模型分解为高频和低频两个模型,从而求得整流器的状态空间平均模型。
The switching function model may be divided into two models of high frequency and low frequency. Then the average model for condition space of the rectifier is developed.
该算法利用电路模型法得到低频下若干频率的电感、电阻值;
The coupled circuit method is used to calculate resistances and inductances in the low frequency range.
采用射线理论对浅海低频矢量声场进行建模,并且分析了该模型在浅海或深海低频时的适用性。
The ray model is used to describe the low frequency acoustic field in shallow water. Applicability of this model in shallow water or deep water at low frequencies is checked.
当我们设计出这种模型时,我们非常惊奇于这种模型的一致性,特别是在低频端发现了脉搏最有力的部分。
When we developed that model, we were quite surprised of the consistency of this model, especially at the low frequency end where one finds most of the power of the pulse.
应用简正波理论并结合波数积分法,建立了浅海低频声传播特性的仿真数学模型。
Using the Normal Model Theory and Wavenumber Integration Method, a low frequency acoustic wave propagation model in shallow sea of multi-layered media is constituted.
模型分析表明,在低频范围内可以用单自由度线性模型代替单自由度粘弹性轮胎模型。
Also, it has been demonstrated by model analysis that for the particularity of tire the viscoelastic tire model can be replaced by the linears...
由于完整地包含了离子和电子的动理学行为,本文的模型方程也可以研究ETG模,漂移阿尔芬模等不稳定模态,并且为在同一的框架内研究低频漂移不稳定性提供了平台。
The eigenmode equation in this dissertation can also be used to study the ETG mode, the drift Alfven waves, and so on. So it provides a unique frame to study the low frequency drift instabilities.
由于完整地包含了离子和电子的动理学行为,本文的模型方程也可以研究ETG模,漂移阿尔芬模等不稳定模态,并且为在同一的框架内研究低频漂移不稳定性提供了平台。
The eigenmode equation in this dissertation can also be used to study the ETG mode, the drift Alfven waves, and so on. So it provides a unique frame to study the low frequency drift instabilities.
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