计算实例可以看出频散介质中波的传播情况。
Simulated example illustrates the wave propagation in a dispersion medium.
计算实例可以看出频散介质中波的传播情况。
Research on Diffuse Backscattering of Polarized Light from Highly Scattering Media;
无论是浏览器安全保护、代码库管理乃至检测存储介质的重复文件,散列技术都在其中发挥着重要作用。
Whether it is browser security protection, code library management, and even the detection of duplicate files stored in the media, hashing technology plays an important role.
漫散屏,柔光屏散射光线的介质,用在摄影中使背景柔和。
A medium that scatters light, used in photography to soften shadows.
散耗型模型考虑了水在不同介质和不同形态之间的交换或转化,并重点考虑人类活动如引水灌溉、地下水的开采等对水平衡的影响。
The water movement and exchange in deferent media and phases are investigated, and the influences of human activities such as irrigation, exploiting groundwater are also taken into consideration.
该方法考虑了由于实际介质的不均匀性而产生的地震波频散现象。
The method considers that the frequency dependence characteristics of seismic wave velocity is caused by the nonuniformity of propagation media.
通过超声实验研究了沿分层介质,特别是含有低速层的分层介质传播的瑞利波频散特征。
The dispersive characteristics of the Rayleigh waves propagated in the layered media are investigated experimentally by ultrasonic detection test, especially in the presence of a low-velocity layer.
本文提出了使用散斑照相技术使物体通过漫射介质成象。
In this paper, the speckle photograph technique is used for the formation of image of objects through scattering media.
在层状介质中,瑞雷波具有频散特性。
介质损耗测量过程中杂散电容及高压引线寄生电容对测量结果的准确性有着很大的影响。
In the course of medium wastage measure, the sundry capacitance and high voltage down-lead parasitical capacitance greatly affect the veracity of the result.
本文应用几何绕射理论对介质覆盖体上过渡区和焦散区的场进行了详细地分析。
The fields in transition and caustic region of dielectric coated objects are obtained by geometric theory of diffraction.
对瑞雷波频散方程的数值计算表明,层状介质中瑞雷波往往存在多种模式,多模频散曲线有什么特征。
The numerical computation of Rayleigh wave found there are many modes in dispersion curve in the bedding media.
从壳体基本运动方程出发,导出了弹性介质中的充液管道在轴对称运动下声振耦合系统的频散方程。
The dispersion equation of structure acoustic coupling system for fluid filled pipes surrounded by elastic media under axisymmetric motion was derived from shell dynamic equation.
从瑞雷面波在具有表面层介质中的传播情况入手,得出成层介质中的瑞雷波具有频散特性。
The paper begins with the propagation of Rayleigh wave in the media with surface layer, educes that the Rayleigh wave have the property of dispersion in layered media.
瑞雷波在层状介质中具有频散特性,利用这一特性,用瑞雷波解决工程中的桩斜检测问题,是一次新的尝试和探索。
It is a new attempt and exploring using this character of Rayleigh wave to solve the problem of measuring about the slant pile in project.
相同介质中不同频率的弹性波传播速度是有差异的,即频散问题。
The propagation velocity of elastic wave with different frequencies in same medium is various, which is called dispersive problem of frequency.
可见,利用瑞雷波的频散特征,可以揭示地下介质的性质和结构的变化。
So, making use of the dispersion characteristic of the Rayleigh Wave, the variety of the property and structure that underground medium could be opened out.
另一种是在非相干的情况下,由于传播介质的不均匀性,例如空气中存在的颗粒状尘埃物质,还有由于某些原因造成的在物体本身表面上就存在的散斑,例如一片叶子表面上的斑点等等。
Another condition is incoherent, because of the asymmetry in the medium. For example the particle in the air, the defect on the surface of the object, such as the speckle on the leafage etc.
用激光散斑照相的方法测量了因光在透明介质中折射而引起的散斑位移,并求出介质的厚度与折射率。
By means of laser speckle photography, the speckle displacement caused by refraction in transparent medium is measured. The thickness and the index of refraction is then calculated.
理论研究和实验表明,多孔隙介质中流体的存在及其运动是弹性波频散和衰减的主要原因。
It is showed by theoretical study and tests that existing fluid in porous medium and its movements are main reasons of dispersion and attenuation of elastic waves.
而在脊区填充非均匀介质以后,截止波长更长,频散特性更好等。
More, the dispersion characteristic is better, the cut-off wavelength is longer when loaded inhomogeneous dielectric in ridge area, etc.
对焦散线法在岩石类介质的适用性进行研究,期望获得裂纹尖端周围焦散斑的大致情况。
The paper studies the applicability of caustics to rock type media, hoping to have a general view of the caustics speckles surrounding the crack tip.
通过数学运算和近似处理,得到了动态散斑强度涨落的空-时相关函数的解析表达式,从理论上揭示了散斑受超声调制的过程,对散射介质中的声光调制机制做出了新的诠释。
The specific space-time intensity correlation function of dynamic speckle has been derived and opens out the mechanism of the dynamic speckle modulated by ultrasound in scattering medium.
通过数学运算和近似处理,得到了动态散斑强度涨落的空-时相关函数的解析表达式,从理论上揭示了散斑受超声调制的过程,对散射介质中的声光调制机制做出了新的诠释。
The specific space-time intensity correlation function of dynamic speckle has been derived and opens out the mechanism of the dynamic speckle modulated by ultrasound in scattering medium.
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