查询词典 nonisotropic

Three turbulent models used recently have been analyzed. On the basis of turbulent random theory, the k-εtwo equations turbulent model has been modified by nonisotropic hypothesis, to accommodate the nonisotropic property of flow field.

重新推导了雷诺应力表达式，将湍动粘性系数用一个二阶张量形式表示，以适应流场的各向异性性质，并对ε输运方程的生成项做了修正。

Birefringence is an important optical parameter of nonisotropic crystal , which is determined by multi factors , such as component structure growth condition and wavelength .

双折射率是表征各向异性晶体光学特性的一个非常重要的光学参数，由材料的成分结构以及生成条件等多种因素所决定，并且与波长有关。

The simulation results indicate that the gas flow in the VC is characterized as a strongly swirling, developing, recirculating, and nonisotropic turbulent flow.

模拟结果表明，涡旋燃烧炉内的流动具有强旋、回流、正在发展流和各向异性湍流的特点。

In this paper,a new method is proposed for synthesizing arbitrarily desired pattern for linear geometry array with nonisotropic elements, and with nonuniform spacing between elements.

提出一种综合具有任意需要方向图的包含非各向同性和非均匀间隔的线性阵列的新方法。该方法的基本思想在于将综合问题转变为一个半无穷维二次优化模型：在一组线性泛约束条件下使权矢量的范数最小。

Then, according to research on nonisotropic transformation in geometric attack, this *** further spreads the application field of scale-space theory in watermark design and proposes an algorithm against geometric attack grounded on affine invariant feature point.

然后，通过对几何攻击中的非同向性变换的研讨，入一步扩铺尺度空间理论在水印设计中的应用，提出一种基于仿射不变特性点的抗几何攻击算法。

Concrete, as a kind of multi-phase, multi-level, and inhomogeneous composite, has the properties of nonlinear and nonisotropic. The macroscopical theories which are used frequently cant reflect these properties easily.

混凝土作为一种多组分、多层次、不均质复合材料，具有非线性和各向异性的性质，一直沿用的宏观理论很难反映混凝土的这些材料特性。

Nonisotropic chaotic vibration by means of the total variation theory is characterized.

用混沌振动理论刻画非迷向混沌振动。

The results show that the Reynolds stresses of the flow near the wall at the exit are abviously nonisotropic and the flow fluctuation transport downstream with the flow speed.

结果表明埋入式进气道出口近壁区气流的雷诺应力呈明显的各向异性，其上游的气流脉动是按气流平均速度向下游传输的。

The feature point in affine scale-space has higher repeat rate under nonisotropic geometric transformation and the ellipse window of nonuniform Gaussian kernel on characteristic scale is founded on image contents.

仿射尺度空间上的特性点在非同向性几何变换中具有更高的反复率，并且其特性尺度上的非统一高斯核椭圆窗口是基于图像内容的。

This paper gives the distribution of the Peynolds stresses, which shows that the flow near the wall at the exit is obviously nonisotropic and the maximal turbulence intensity is enough high to impact on the matching of the intake and the engine. The unsteady characteristics of the flow evince that the flow doesn't separate obviously.

出口截面上雷诺应力分布表明：该进气道出口流场主流方向的紊流强度较大，最大值已达8%以上，这给进／发匹配造成影响；正雷诺应力和剪切应力沿径向和周向的分布特点则说明进气道出口核心流区域流动基本是各向同性的，然而在近壁区却表现为明显的各向异性。

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。