各向异性

Then,two geologic models were designed,including layered model and interface undulated model,which were used to carry out post-stack reverse time migration by spectral element method on forward modeling results in anisotropic and isotropic medium.

设计了层状和界面起伏两个地质模型，分别在各向异性介质和各向同性介质条件下对正演模拟结果进行了谱元法叠后逆时偏移。

On the other hand, with the purpose of fuzzy feature extraction and fuzzy classification device design, the undulatory property of maximum and minimum scattering power corresponding respectively to the maximum and minimum eigen-polarization has been investigated in frequency domain. Furthermore, the anisotropy polarization degree of target, which is determined by both maximum and minimum scattering power of target, has been studied; meanwhile, the dynamic changing characteristic of eigen-polarization on Poincare polarization sphere has been investigated by means of the conception of polarization frequency stability, the research result shows that PSD value has a big jump near π, forming a sharp pulse, and different target has their individual distribution property of PSD pulse.

另外，围绕目标模糊特征提取及模糊分类器的设计，研究了目标最大、最小本征极化所对应的目标最大、最小散射能量随观测频率的起伏特性，考察了由目标最大、最小散射能量共同决定的目标的各向异性极化程度；同时，采用极化频率稳定度的概念，研究了本征极化在Poincare极化球面上的动态变化特性，在最大、最小散射能量相等的频率点上，PSD曲线呈现为幅度接近π值的尖锐脉冲，反映了目标极化散射结构对这一频率跳变极为敏感，但不同目标的这种PSD曲线特征又有很大的不同。

The results of experiments show all improved algorithms have more better performance than unimproved and they fit the needs of medical image denosing. In total, anisotropic diffusion filtering have the best performance.

实验表明，本文提出的算法较传统算法均有性能上的提高，从整体上给予了各向异性扩散滤波方法的最佳肯定。

To determine the optical parameters of turbid media with an unpolarized backscattering light,an oblique incidence geometry with the compound BP neural network has been designed.

1引言正常和异常生物组织的光学组散射系数μs、吸收系数μa和Heyey-Greenstein模型[1]中各向异性因子g不同，用这组参数能辅助医疗诊断[2~6]。

With new CAD method based on CT data and USIS software the establishment of orthotropic 3D finite element model for individual mandible is realized.

基于CT数据和USIS软件的新型CAD方法实现了个体化下颌骨正交各向异性三维有限元模型的建立。

The acceptor atoms are required to have one less valence electron than the

各向异性-在蚀刻过程中，只做少量或不做侧向凹刻。

This paper deduces the functional of generalized mixed variational principle for the plane problem of the orthogonal anisotropy, on the basis of which, the generalized mixed finite elements method for the problem is established.

推导了正交各向异性平面问题广义混合变分原理的泛函，以此为基础建立了该问题的有限元广义混合法。

A new dynamic vector Preisach model that takesaccount of the anisotropic characteristics of media and vector reversible component ispresented.

第五章对旋转磁滞问题和交变磁滞问题进行了研究，分析了一些典型的交变磁滞模型，提出了一个新的考虑媒质各向异性及矢量可逆行为的动态矢量Preisach模型。

In the fourth chapter, using the magnetic vector potential as the unknown variable, a mathematical model for numerical calculation of the magnetic field and loss distribution in 3-phase 5-limb transformer core is presented.

第三章针对变压器铁心结构的特点，对各向异性非线性边值问题的有限元分析方法进行了详细的阐述，并推导出了实用的N-R格式及单元分析格式，对具有多媒质单元的有限元分析方法进行了介绍，为变压器铁心磁场及损耗分布的数值计算奠定了基础。

It was found that after annealing at different temperatures for lb the static magnetic properties achieves the best velum at T=390℃ and the loss minimum at T=440℃. After annealing at T=440℃, transversal induced magnetic anisotropy develop for the sample of t=2h.

实验发现：经不同温度退火1h后，试样的静态磁性能在T=390℃呈现最佳值；损耗则T=440℃呈现最低值；在T=440℃经不同时间退火后，试样在t=2h呈现横向感生磁各向异性。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。