查询词典 anisotropy

Study on the Percolation Conductive Behavior of the Conductive Composites Using classic statistic percolation theory, the conductivity behaviors of the PET/EG、PA6/EG and PA6/PET/EG composites were investigated, and the percolation thresholds and critical exponents were obtain. The nonuniversal critical exponent should be attributed to the anisotropy of conductivity, the tunneling conduction, the particular structure, the anomaly distributing of the particles and so on.

四、聚合物—石墨导电复合材料的逾渗导电行为运用统计逾渗理论探讨了PET／EG、PA6／EG及PA6／PET／EG导电复合材料的导电机理，得出了各体系的逾渗值和临界指数，并从导电性能的各向异性、逾渗值以上的隧道导电机理、独特的形态结构、导电粒子的不规则分布等方面分析了造成临界指数非普适行为的可能原因。

The transient anisotropy study provided evidences of molecular structures during the photoisomerization process.

而非等方向性瞬时行为的研究提供在顺-反异构化过程中分子结构变化的证据。

With the unique characteristic of reversible photoisomerization and optical anisotropy,azo polymers have various potential applications in the field of optical data storage,nonlinear optical materials and liquid crystal displays.

偶氮聚合物具有光致顺反异构和光学各向异性，其在光电信息技术领域具有重要的潜在应用前景。利用活性自由基聚合的方法可以在温和的条件下合成得到特定结构与预定相对分子质量的偶氮聚合物。

To illustrate the feasibility of our parallel algorithm, the two examples for pseudospectral modeling of seismic wave are given: 2D acoustic and 3D elastic anisotropy modeling of wave propagation.

为了检验我们的并行算法的可行性，文中以傅利叶正演模拟技术为例，给出了声波和3D各向异性弹性波模拟的例子，并对不同版本运算效率进行了比较，证实了方法的有效性。

Anisotropy of isothermal remanent magnetism is a recently developed technique for rock fabric study.

等温剩磁各向异性是一种新的磁组构研究方法。

Using numerical simulation, 102 schemes were designed and calculated in rhomboidal and rectangular well patterns. A theoretical plate of reasonable ratio of space between wells and rows in different well patterns were studied, and different anisotropy degree formations of low permeability reservoirs we...

通过 10 2种方案的设计，在相应的地质模型基础上，运用数值模拟方法，对合理井排距比进行了研究，得到确定低渗透油藏合理井排距比理论图版，利用图版可以确定对低渗透油田不同各向异性程度下合理井排距比，低渗透油藏的经济有效地开发具有重要的理论意义和实用价值。

Studies on spatial heteroplasmy of Saperda Papulnea L. population from different directions indicated that the model of semivariogram of eggs, larvae and adults in four directions are the same, but spatial dependent range are different, belonging to geometrical anisotropy. They had stronger continuity in the direction of 0° and 45° than the other two directions.

对不同方向上青杨天牛种群空间异质性研究表明：天牛卵、幼虫和成虫在四个方向上的半变异函数拟合的模型相同，但空间依赖范围却不同，属几何性的各向异性。

The effect of anisotropy vary with the azimuth of fracture, especially a couple of level waves which have different schismatical degrees because of the difference of azimuth and velocity difference.

研究表明：①裂隙密度增大，各向异性效应增强，三类波的速度减小，衰减系数增大，特别是P波的衰减系数十分敏感，因此，可以利用振幅、速度等特征确定裂隙发育带。

Fractional anisotropy were measured in the genu, body and splenium of corpus callosum, horizontal part and posterior part of the bilateral cingulste fibers.

目的 探讨创伤后应激障碍患者是否存在连合纤维束胼胝体及联络纤维扣带纤维束的超微结构异常。

The fractional anisotropy values of white matter in schizophrenia patients and normal controls were measured respectively in frontal and the splenium of corpus callosum. Independent-samples t-test for non-paired data was used to test the differences between schizophrenia arid controls for FA values. Correlated analysis was applied to reveal the correlations between FA values in frontal and the PANSS scores.

对22例精神分裂症患者和20例健康志愿者进行脑部DTI扫描后，测量双侧额叶和胼胝体压部的各向异性分数值，应用成组t检验对精神分裂症患者和正常健康对照组的相应区城进行比较，并用部分相关性检验对精神分裂症患者脑中各部位相应FA值与PANSS量表评分之间的关系进行统计。

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。