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螺旋形波
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  spiral wave
     In this paper, one kind of CGH element which can produce spiral wave suface A(x,y)exp[i(x,y)]=exp(i)) is made by using interference CGH method, and the first order Bessel transformation of axial symmetric Gaussian beam is obtained by this element.
     用干涉计算全息的方法制成一种能产生螺旋形波面A(x,y)exp[i(x,y)]=exn[iθ]的计算全息元件(CGH),并将其用来实现高斯光束的一阶贝塞尔变换。
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  相似匹配句对
     The microwave absorbing properties of carbon microcoils
     螺旋形炭纤维的吸性能(英文)
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     AN ELECTRIC WAVE-ANALYZER
     谱分析仪
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     Chase after the wave
     追
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     Helix-shaped Carbon Nanotubes
     螺旋形碳纳米管
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     These results suggest that CMC/epoxy composites have potential application as microwave absorbing materials.
     这些结果表明螺旋形炭纤维是一种很有应用前景的吸材料。
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  spiral wave
The small interarm distance of the trailing spiral wave (λ = 1.8 kpc) can be explained by its evolution-by the decrease in the interarmd istance as the wave is displaced toward the inner Lindblad resonance.
      
The results of a three-dimensional gas-dynamical simulation of a cool accretion disk are presented; these results confirm the possibility of the formation of a new, "precessional," spiral wave in the inner regions of a cool accretion disk.
      
The features of the precessional spiral wave can explain both the energy release in the superoutburst and all its observational manifestations.
      
To explain the variations of the out-of-eclipse brightness of the system during the outburst, it is necessary to include the presence of a one-armed spiral wave at the inner surface of the disk, close to the periastron of the elliptical disk.
      
We consider a mechanism for the formation of superhumps in the TV Col system, based on the possible existence of a precessional spiral wave in the accretion disk of the system.
      
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In this paper, one kind of CGH element which can produce spiral wave suface A(x,y)exp[i(x,y)]=exp(i)) is made by using interference CGH method, and the first order Bessel transformation of axial symmetric Gaussian beam is obtained by this element. At the same time,this transformation is imitated by computer in theory. The calculating light intensity distribution of this transformation is gotten and campared with the experiment result. In this paper, n order Bessel transformation of axial symmetric Gaussian beam...

In this paper, one kind of CGH element which can produce spiral wave suface A(x,y)exp[i(x,y)]=exp(i)) is made by using interference CGH method, and the first order Bessel transformation of axial symmetric Gaussian beam is obtained by this element. At the same time,this transformation is imitated by computer in theory. The calculating light intensity distribution of this transformation is gotten and campared with the experiment result. In this paper, n order Bessel transformation of axial symmetric Gaussian beam by this method is disgussed.

用干涉计算全息的方法制成一种能产生螺旋形波面A(x,y)exp[i(x,y)]=exn[iθ]的计算全息元件(CGH),并将其用来实现高斯光束的一阶贝塞尔变换。在理论上用计算机模拟此变换,求出变换后的光强分布曲线将其与实验结果进行了比较。还讨论了用该方法实现高斯光束的n阶贝塞尔变换的可能性。

According to the basic principle of holographic interference, a new method has been proposed for the implementation of interference type holograms with computer simulation. The main idea of the algorithm is based on the Newton iteration. By searching all the points which fit the binary holographic equation throughout the whole hologram and then connecting them up or plotting line segment parallel to y axis, the interference type Computer-generated Holograms of different patterns are given, such as the waves...

According to the basic principle of holographic interference, a new method has been proposed for the implementation of interference type holograms with computer simulation. The main idea of the algorithm is based on the Newton iteration. By searching all the points which fit the binary holographic equation throughout the whole hologram and then connecting them up or plotting line segment parallel to y axis, the interference type Computer-generated Holograms of different patterns are given, such as the waves of sphere, pyramidal and helicoids. MATLAB is used as implementing method. The simulation result demonstrates that this is an effective way for the realization of interference type Computer-generated Hologram.

介绍了计算全息干涉图制作的基本原理,并根据实现原理设计相应的计算机仿真算法实现各类波面计算全息干涉图绘制。算法主要基于牛顿迭代法思想。在全息图面上搜索满足二元全息函数基本方程的点以获取干涉条纹的具体坐标位置,并将它们连成线或者绘制与y轴平行小线段构成计算全息干涉图。给出了MATLAB平台上球面波、锥面波及螺旋形波面的计算全息干涉图。该算法提供了制作计算全息干涉图的新手段,同时仿真结果也表明这是一种高效快捷的实现方法。

 
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