各向异性

Considering the nonlinear and Elastic-Plastic and anisotropy trait of soil, the method of numerical analysis can reflect the relation between abreaction of pore press and framework distortion of soil and can simulate the fact of field and complex boundary condition and so on. So the method of numerical analysis has been abroad used in the area of theory research.

数值分析方法可以考虑到土体的非线性、弹塑性和各向异性等特点，能准确地反映出孔压消散与土骨架变形之间的关系，而且可以较好地模拟现场实际情况以及复杂的边界条件等，因此在理论研究领域得到了比较广泛的应用。

Finite-difference time-domain method was used to simulate the coupling processes of ultra-wide-band electromagnetic pulses into a cavity with a slot, and an anisotropic perfectly matched layer absorbing medium was inserted to truncate the computational lattices.

用时域有限差分法模拟超宽带脉冲入射时与目标腔体上的孔缝相耦合的过程，用单轴各向异性的完全匹配层吸收边界条件截断时域有限差分网格。

Constitutive model: Based on the energy principle of fracture mechanics, energy addition theorem and statistical theory of rock-mass structure, a constitutive model of anisotropic equivalent continuum is derived.

裂隙岩体的本构理论运用断裂力学能量原理和能量可加性原理及岩体结构统计理论，导出了裂隙岩体的各向异性等效连续介质本构模型，并对柔度张量和等效应力作了讨论。

After the deduction of high order temporal and special difference approximation to the wave equation, the snapshots of wave propagation in an infinite monoclinic media and synthetic three components surface and VSP data for a flat layered model are presented.

推导了交错网格中时间和空间上的高阶差分近似公式，并针对二维单斜各向异性介质，给出了具体的空间差分网格的形式。在上述理论的基础上，利用交错网格高阶有限差分技术，首次对单斜各向异性介质中波的传播特性进行了模拟。

Two works guaranteed the fulfilment of this studies,(1)developing compressional - and shear - waves transducers with broadband which is key part of the system in the physics model experiment, and study of the special property and using skills of the transducers , groping the relative experience to develop transverse wave measurment and observation at laboratory.(2) establishing a suit of comprehensive testing system to observe the elastic wavefield in anisotropy media .

首先通过研制物理模型实验技术中的关键器件纵横波宽频带换能器，及对其性能和使用技巧的研究，积累实验室开展各向异性介质的测试经验，建立了一套较完整观测各向异性介质弹性波场的测试系统。

Based on the study of 1420 Al-Li alloy strengthened by a single precipitate, the author study strengthening contributions and their anisotropies of each phase and that of deformed textures to anisotropy in 2090 and 2090+Ce alloys strengthened by two precipitates, by reversion treatment and the exponential additional rule.

在研究单相强化的1420合金的基础上，通过回溶处理和指数叠加法研究了两相强化的2090及2090+Ce合金中各析出相对合金的强化贡献及其各向异性、形变织构对合金各向异性的贡献。

The study shows that the effect of Young's modulus is largest, then hardening coefficient, initial yielding stress, hardening exponent and anisotropy r0 . While the effects of anisotropies r4 5 and r9 0 variation can be ignored.

研究结果表明，杨氏模量的波动对板料回弹量的影响最大，其次分别为硬化系数、初始屈服应力、硬化指数及各向异性系数r0的波动，而各向异性系数r4 5及r9 0的波动对板料回弹量的影响可忽略，且数值模拟分析材料参数对板料回弹量的影响趋势与理论分析一致。

The experimental results agree well with theestablished theory about FMR in iron films,showing excellent extendability of such atechnique onto different ferromagnets as an effective way to study magnetocrystallineanisotropy and spin excitations.

为了描述实验结果，我们把自旋整流模型推广到存在磁晶各向异性的情形，拟合结果证明与已知的有关Fe薄膜中铁磁共振的理论符合得很好，并精确地重现了其中的磁晶各向异性，展现了该技术的拓展性和广泛适用性。

The relation between the relative Young′s modulus of the models and the anisotropic size ratio was obtained and compared with theory pred...

结果表明，建立的开孔和闭孔随机泡沫模型能较好地反映泡沫材料的各向异性力学性质；且开孔和闭孔泡沫的各向异性力学性能均与泡沫材料的相对密度有关。

So far we have discussed the case of single inclusion inhomogeneity and inhomogeneous inclusion where the interaction between inhomogeneities need not be considered.

迄今为止，我们已经讨论过一个内单元体各向异性问题和在其它成分可以忽略之间的各向异性内单元体相互作用的问题。

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。