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zhichixiangliangji1
基于MATLAB利用Particle-in-cell模型,对梯形管内壁等离子体离子注入过程,进行了二维数值模拟.计算结果表明在中心电极附近出现了“阳极鞘层”,该鞘层内部不存在离子,而且在鞘层边缘离子密度最高.在上下管壁上的离子注入剂量呈现“m”形分布.通过对注入过程中等离子体密度分布和不同时间段管壁不同位置离子注入剂量的跟踪,发现“阳极鞘层”扩展行为是导致“m”形分布的原因.由于梯形管形状的不对称性,“阳极鞘层”的边缘向梯形长底方向扩展较快.在注入初始时刻离子注入的能量很低,随着时间延长离子能量逐渐升高,这是由离子初始位置决定的.可见梯形管自身形状决定了鞘层形状和最终的离子注入能量和剂量分布.(Based on MATLAB use Particle-in-cell model, the trapezoidal pipe wall plasma ion implantation process, the numerical simulation of two-dimensional calculation results show that in the vicinity of the center electrode to a "anode sheath," which does not exist inside the plasma sheath, and the highest in the sheath edge ion density ion implantation dose showing the upper and lower walls of the "m"-shaped distribution through the process of injecting the plasma density distribution and the wall at different locations in different time periods ion implantation dose tracking, found that "anode sheath "extension behavior is leading to" m "-shaped distribution of the reasons due to the asymmetry of the trapezoidal shape of the tube," Edge anode sheath "extension to the end of a long trapezoid direction quickly in the initial moment of implantation energy ion implantation is low ion energy with time gradually increased, which is determined by the initial position of the ion. visible trapezoida)
- 2014-01-09 14:08:57下载
- 积分：1
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lms
自己编写的AR过程线形预测器的LMS算法(I have written of the AR process of the LMS algorithm linear predictor)
- 2011-07-02 16:01:10下载
- 积分：1
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tuxiangcuangaifenxingxue
现在大多数图像的复制和粘贴，篡改检测算法对于区域复制后的进一步混合处理不能进行有效检验。(Most of the existing detection algorithms for image copy-move forgery cann t effectively detect the sequential mixed image forgeries. )
- 2014-03-03 18:54:26下载
- 积分：1
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Skew_Correction_Using_Fourier_Transform
两篇英语文本倾斜校正论文。
FT_Deskew为论文的Matlab实现，可用附带的两个图片测试，效果较好。(Text De-skewing Using Fourier Transform and Matlab code.)
- 2009-05-23 14:38:23下载
- 积分：1
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fft_plot
routine to take the Fourier transform of a signal and plot both the time and frequency domain representations. Typical use:
>> n = 100 number of data points
>> dt = 0.01 spacing between samples
>> t = 0:dt:(n-1)*dt time vector
>> y = sin(2*pi*10*t) 10 Hz sin wave
>> fft_plot(y,dt) plot of signal in time and frequency domain
- 2009-06-23 06:04:38下载
- 积分：1
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CDF
cdf matlab code for Digital Image Processing cource
- 2014-02-17 22:53:40下载
- 积分：1
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direction_field
基于方向场的图像处理算法，采用matlab编写(direction filed method by matlab)
- 2015-04-16 16:18:22下载
- 积分：1
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nnPlotCurve
set the map edge in map area
- 2010-08-10 21:30:57下载
- 积分：1
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angle
说明： 测量图片中的建筑物角度，R2008B以上版本运行(Measurement of the angle the picture of the building, R2008B or later to run)
- 2010-03-16 21:27:44下载
- 积分：1
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Fud1
transiant analysis matlab code
- 2013-11-07 16:46:41下载
- 积分：1
