各向异性

Almost all existed research works fasten on those transversely isotropic media with vertical or horizontal axis of symmetry., but rare are studies of orthotropy that is more common for rocks in sedimentary basin .

而在沉积盆地中较普遍存在着正交各向异性的情况。

Rock mechanics ; orthotropy ; experimental method ; true triaxiality ; cross-multipole array acoustilog

岩石力学；各向异性；实验方法；真三轴；偶极声波测井

Through S-wave polarization scanning mode of ultrasonic impulse testing, rock samples with three different properties are measured to evaluate the variation of S-wave velocity in three perpendicular coordinates. By analyzing S-wave splitting of three directions and polarization of the maximum or minimum speed S-wave amplitudes, we think that the velocity orthotropy and fracture orientation observed in the grain sandstones and crack marble samples can be estimated in terms of the polarization and velocity of S-wave. Also, perpendicularity characteristics on the two types of rocks can attribute to the bedding and structure of rocks (directional grains or crystallize).

在实验室通过选择了三种不同岩性的岩石，采用超声脉冲测试方法中的横波偏振扫描方式，观测了岩石样品三个坐标方向上的横波速度变化，通过分析三个传播方向上出现横波分裂的差异，以及出现最大或最小快慢横波振幅的偏振方向发现，可从横波偏振方向和速度值判断出纹理砂岩和裂隙大理岩样品存在不同程度的速度正交各向异性和裂隙方向等特征，认为这两种岩石的正交特性的原因是岩石的层理或裂隙与岩石本身的结构构成的。

The fracture is the important path of filtration and accumulated space in carbonate formation, however, there are many special characters of carbonate formation, such as aeolotropism and anisotropy, increaseing the difficulties of exploration.

裂缝是碳酸盐岩储集层的重要渗流通道和储集空间。然而，由于碳酸盐岩储集层有许多特有的性质，如非均质性和各向异性，大大的增加了油、气勘探的难度。

As a novel version of penetrometer, T-bar is extensively utilized in in-situ measurement for undrained shear strength of marine soft foundation. However, the effects of penetration velocity, anisotropy of soil strength and gradual softening on penetration resistance of T-bar penetrometer are seldom systematically investigated.

T型触探仪近年来在国外的海洋软土地基原位测试中得到了广泛应用，但贯入速率、地基土强度的各向异性与渐进软化等因素对于贯入阻力的影响没有得到系统的研究。

In the specimens with perfect cube texture, the magnetic anisotropy constant k1 has been determined; the result is consistent with that of other authors' using single crystal specimens.

从具有完整立方结构的试样上测得的磁晶各向异性常数k_1和其他作者从单晶体上得到的值相近，而从保有冷轧结构的试样定得的k_1值则较大。

For dipping boundaries and anisotropic layers, they can cause obvious energies on transverse component and show periodicity variations as a function of back azimuth.

通过分析发现倾斜界面和各向异性介质都能使接收函数的切向分量产生明显的能量，并使径向和切向分量呈现周期性的变化。

A new Permalloy single crystalline phase with body-centered-cubic structure has been achieved on GaAs(001) by molecular beam epitaxy.

Fe在GaAs(001)磁单轴各向异性的机理等4个方面展开了研究，得到了以下结果： 1。

In this thesis, we explore the approach to improving the anisotropicmagnetoresistance and magnetic properties of permalloy (Ni0.82Fe0.18) films for adapting to the appliance of high sensitive magnetic heads and sensor .

本文探索了提高坡莫合金Ni_(0.82Fe_(0.18)薄膜的各向异性磁电阻和磁性能，以适应其应用于高灵敏度磁头和传感器的途径。

For Permalloy/FeMn bilayers, the exchange field and coercivity decay exponentially in time with the application of an applied field antiparallel to the unidirectional anisotropy direction. The relative change of the exchange field, 1-H〓/H〓(t=0) also decays in an exponential manner with the FeMn layer thickness.

通过Py／FeMn双层膜结构研究了反铁磁层的厚度对交换耦合热稳定的影响，发现对于Py／FeMn双层膜，在外场方向与单向各向异性方向反平行时，交换偏置场和矫顽力随时间的变化呈指数衰减，耦合场和矫顽力的相对变化随FeMn层的厚度衰减。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。