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This technique uses a spiral phase plate with a small central aperture placed on the Fourier plane of an imaging system. If the spiral phase filter is rotated by a certain angle around its central axis,a phase shift between the zero-order spatial frequency component and the remaining of the object is produced,and the magnitude of this phase Shift is proportional to the rotation angle. Using this property,we can record a sequence of intensity distribution of the output beams corresponding to different rotation angles,and then digitally reconstruct the objects by using a phase-shifting algorithm. Both the theoretical analysis and simulation experiment results demonstrate the feasibility of this approach.

在成像系统的频谱面上放置中心带有一通光孔径的螺旋相位板，在输出面上记录输入物体经螺旋相位滤波后的输出像；将螺旋相位滤波器绕轴旋转一定角度，通过中心光孔的零频成份与其他高频成份间会产生与旋转角度成正比的相移；利用这一特点，通过记录多幅对应不同旋转角度的输出光场强度分布图，然后再用一定的相移算法实现被记录物体相位分布的数字再现。

A new pattern generation method is proposed which contributes to improvement of the performance of a handwritten Chinese character recognition system. By using this pattern generation technique, we increase the number of learning patterns by using transform method with cosine function.

在这种背景下，本文的研究目的就是参考国内外最新研究进展，在PRIS实验室的技术积累基础之上，在"金融票据OCR系统中的成套关键技术"的国家863项目的支持下，对金融票据OCR系统中的关键技术进行研究和改进，并结合最新的信息检索领域的应用，提出相应的解决思路。

Using this empirical covariance function in forest areas, one may obtain a same result as using a covaricnce function estimated from real data.

初步结果显示：应用此经验协变方函数对於森林地区，和以实际资料推估所得协变方函数计算成果的精度相当。

Cover crop using Mucuna munaneae as the third crop in the cropping system; zero tillage using herbicide or hand pulling for weed control; mucuna foliage and crop residues are used for mulch.

在种植制度中，用黎豆属作物作为第三季覆盖作物。用除草剂或人工除草实施免耕，把黎豆属作物叶片和其它作物残体，作为覆盖物。

Using the limited documentation above, we can cover a lot of ground using a little thinking.

利用有限的文件上面，我们可以覆盖大量的地面用小思想。

ICC profiles have some support nature use ICC profiles can be from RGB to CMYK conversion — but a device-independent PDF file ICCBased color in the output using the Crackerjack separations before first cast to the target CMYK space (using tools such as PitStop Professional Edition).

ICC共性文件具有一些撑持共性——搁置ICC共性文件可以举行从RGB到CMYK的变换——但摆设不有关PDF文件洋的ICCBased色彩在搁置Crackerjack举行输入分色之前，一定给不后变换到标的目的CMYK不时间（搁置PitStop副业版等东西）。

Having this credendum, getting into the habit, using it to treat your parents, kids, wife, friends, colleagues or leaders, and using it deal with the official business problem, thus you won't make stupid mistakes, will get away from troubles, and the people around you will love you very much.

有了这样的信条，养成了习惯，用来对待父母子女，妻子朋友，同事或领导，并且用它来处理自己在公务上的问题，你就不会犯愚蠢的错误，就会远离烦恼，周围的人都会喜欢你。

Learning and memory performance of rats was measured by using Morris water maze first and Y-maze afterwards. Neurons in the dentate gyrus, CA3 and CA1 regions of the hippocampus were stained by using Cresyl violet method and counted.

采用Morris 水迷宫和Y-迷宫测试大鼠学习与记忆成绩，并用Cresyl violet染色法对大鼠海马结构进行神经细胞计数。

Based on random signal theory, in order to quantitatively research drilling string by vibration measurement method, the article sketches out a new methodthe identification of drillstring system using the cross correlation function. Using input signal, and output signal, the impulse response of drill-string is obtained. Some problems...

在随机信号理论基础上，提出了一种用互相关辨识钻柱系统的新方法；结合输入信号和输出信号，利用钻柱系统的脉冲响应，讨论了钻柱的临界转速、钻柱共振、钻柱与井壁之间的相互作用、所钻地层岩性等钻井工程问题。

In this thesis, micro-crystalline silicon thin film solar cells are designed using 3D computer simulation software, Crosslight, and are fabricated using hot-wire chemical vapor deposition technique.

中文摘要本论文乃以Crosslight模拟软体进行单一接面微晶矽薄膜太阳电池结构之最佳化设计，并以热灯丝化学气相积系统实际制作微晶矽薄膜太阳电池。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。