各向异性

In addition, this paper presents an analysis for anisotropic drilling characteristics of the bit and the experimental study of bit anisotropy index in the laboratory.

另外，本文还分析了钻头的各向异性钻井特性，并初步探索了钻头各向异性指数的室内试验方法。

The electric current and potential distribution produced by dipoles in human brain was simulated by the finite element method.

讨论用有限元法计算电流源偶极子产生的电流与电位分布，推导出计算偶极子源在各向异性导电媒质中的有限元方程，并对其进行变形，使得在各向异性导电媒质中生成的有限元刚度阵对称。

Not only the influence of average normal anisotropy but also the one of planar anisotropy on the flanging height can be taken into account.

该模型不仅能够考虑板材的厚向各向异性特性，而且也能够考虑面内各向异性对翻边高度的影响。

The results show when formations contains a single vertical parallel fracture system, the amplitude of reflected P-wave is more sensitive than velocity for different infillings of vertical fractures; the anisotropy increases as fracture density increasing; the anisotropy of gas-bearing fracture is stronger than the fracture saturated with fluid.

研究结果表明，当地层中含有单组垂直的平行裂隙时，反射P波振幅对垂直裂隙中充填物的敏感性大于速度对裂隙中充填物的敏感性，随着裂隙密度的增加，P波各向异性程度也相应增强，裂隙中含气时，各向异性程度较含饱和水时强。

The thickness of the anisotropic layer beneath the north-central Qinghai-Xizang plateau is estimated to range from 70km to 113km, which is in comparable well with those in its adjacent terrenes (approximately 100km thick).

研究结果表明，由MPO强化的青藏高原北部岩石圈地幔各向异性强度可达10%，相应的各向异性层厚度平均为94km。

The invention pertains to the field of fabrication of devices of various purposes, which use anisotropic films: polarizers, retarders, etc., as well as technology of obtaining coatings with anisotropy of electric conductivity, magnetic properties, thermal conduction and other physical properties.

本发明属于多用途装置的制备领域，采用各向异性晶体薄膜：偏光器、延时器等，以及制得电导率、磁性能、导热性及其它物理性能各向异性的涂层的技术。

The improved model possesses band-pass filer characteristic, diffuses processing stability and satisfies the max-min principle. The simulation results show that the median filter is only proper for outlies noise and removes the thin line and corners of image. The linear filter extends or blurs the boundary of image. The anisotropic diffusion removes random noise effectively, but it brings about illusive edge and back diffusion for outlies noise. The improved model that possesses both median filter characteristics and anisotropic diffusion capability is proper for various mixed noise and can sufficiently protect the detailed characteristic such as corner, thin line and edge.

研究结果表明：中值滤波作为一种经典的非线性滤波方法仅适合于&飞点&噪声的滤波并引起图像的角点、线条损失，线性滤波扩大或使图像边界范围模糊；传统的各向异性扩散能对随机噪声有效地压制，但对&飞点&噪声会产生虚假的边缘甚至反扩散，而改进模型既具有中值滤波的特性又具有传统各向异性扩散的性能，适合于平滑不同强度与形状的混合噪声，并对角点、线条、边缘等细节信息提供足够保护。

Next,by the use of the method on anisotropy subdivision in [8],we have proved the properly advanced element satisfy the feature of anisotropy for arbitrary convex cuboid subdivision in 3-dimension space and the error estimate is obtained.

接着，运用文献[8]中关于讨论各向异性的方法，我们证明了此单元在适当的改进之后，对长方体剖分满足各向异性特征，并且给出了相应的误差估计。

A recursive matrix method is adopted for computing the magnetic-current-source dyadic Green′s function in anisotropic media. The response of multi-component induction logging in layered and deviated anisotropic formation is simulated by using the obtained dyadic Green′s function. The influence of coil spacing, bed thickness, deviation angle and shoulder bed on the response is analyzed.

采用递推矩阵方法计算各向异性介质的磁流源并矢Green函数，并利用上述并矢Green函数对层状各向异性倾斜地层中多分量感应测井的响应进行数值模拟，分析了线圈距、层厚、倾角和围岩对多分量感应测井响应的影响。

The parameters of anisotropy of isothermal remanent magnetism are directly related to the shape of magnetic carrier minerals in rocks. They reflect the deformation and dislocation of carriers under compaction.

与非滞后剩磁各向异性的参数一样，等温剩磁各向异性的参数直接与岩石中的携磁矿物颗粒形状有关，它直接反映了岩石形成与压实作用下携磁矿物的变形和变位。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。