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boxcount
Fractal dimension using the box-counting method for 1D, 2D and 3D sets
- 2007-11-22 11:36:17下载
- 积分：1
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guidaofenix
利用Matlab软件编写的轨道不平顺数据分析程序能够对轨检车测得的不平顺数据进行处理,得到功率谱密度分布函数.轨道不平顺分析程序包括轨道不平顺数据预处理、轨道不平顺谱分布函数计算以及根据实测的车体振动加速度,对轨道不平顺与车体振动加速度进行相干分析、提出对行车运行有不利影响的不平顺波长范围等.研究结果表明:车辆的动力特性与轨道不平顺有密切关系.高低不平顺对车体垂向振动影响显著,轨向不平顺对车体水平振动影响显著,水平不平顺对列车垂向、横向振动均有显著影响.(Matlab software written track irregularity data analysis program able to track inspection car irregularity measured data are processed to obtain the power spectral density function. Track Irregularities track irregularity analysis procedures including data preprocessing, track irregularity spectrum distribution function calculations, and based on the measured vibration acceleration of the vehicle, with the body of track irregularity acceleration coherent analysis, have an adverse impact on traffic running irregularity wavelength range, etc. the results show that: the dynamic characteristics of the vehicle and the track irregularity closely related. rough along the vertical vibration of the vehicle significantly, rail irregularity vibration to levels significantly affect the body, the level of irregularity to train the vertical and horizontal vibration significantly affected.)
- 2014-01-19 16:41:57下载
- 积分：1
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IDW
IDW插值法，距离倒数乘方格网化方法是一个加权平均插值法，可以进行确切的或者圆滑的方式插值。方次参数控制着权系数如何随着离开一个格网结点距离的增加而下降。对于一个较大的方次，较近的数据点被给定一个较高的权重份额，对于一个较小的方次，权重比较均匀地分配给各数据点。 计算一个格网结点时给予一个特定数据点的权值与指定方次的从结点到观测点的该结点被赋予距离倒数成比例。当计算一个格网结点时，配给的权重是一个分数，所有权重的总和等于1.0。当一个观测点与一个格网结点重合时，该观测点被给予一个实际为 1.0 的权重，所有其它观测点被给予一个几乎为 0.0 的权重。换言之，该结点被赋给与观测点一致的值。这就是一个准确插值。 距离倒数法的特征之一是要在格网区域内产生围绕观测点位置的"牛眼"。用距离倒数格网化时可以指定一个圆滑参数。大于零的圆滑参数保证，对于一个特定的结点，没有哪个观测点被赋予全部的权值，即使观测点与该结点重合也是如此。圆滑参数通过修匀已被插值的格网来降低"牛眼"影响。 (Inverse Distance to a Power)
- 2010-12-20 16:08:08下载
- 积分：1
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calp
用于求解不可压ns方程的动量守恒计算方程的核心部分，采用了二维对称调用的技术。(Ns for solving incompressible equation of momentum conservation equation of the core part of the calculation, using a technique called two-dimensional symmetry.)
- 2011-10-14 08:52:52下载
- 积分：1
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MATLAB
MATLAB入门教程，详细介绍的matlab的历史背景，几本操作等。(MATLAB Baedeker.)
- 2010-05-20 10:07:42下载
- 积分：1
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magnify
这里面汇总了matlab局部放大的三种方法，可以对matlab中plot进行局部放大，带程序。(It mainly is concerned about the magnification of plot.The users can use it to magnify what they want.)
- 2013-03-20 22:37:04下载
- 积分：1
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CAD-Lung
This function extract a binary image gray scale image
using auto-tuned threshold value obtained the correlation
of Image euler numbers. This work had been published in
L.P Wong, H.T Ewe.
A Study of Lung Cancer Detection using Chest X-ray Images.
3rd APT Telemedicine Workshop 2005, 27-28th January 2005, Kuala Lumpur,
Malaysia. Pages 210-214.
- 2015-01-26 06:12:34下载
- 积分：1
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x2f_mpi_pack
基于MPI架构的ISAT（In Situ Adaptive Tabulation，自适应表格法）算法示例(A ISAT（In Situ Adaptive Tabulation） program based on MPI)
- 2015-04-03 14:24:36下载
- 积分：1
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nbvp
A n-point BVP solver. Very useful for BVPs.(Very useful for BVPs.)
- 2010-08-09 23:40:33下载
- 积分：1
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Matrix-ProgrammingBeta2.0
该编程为矩阵与数据分析课的编程作业程序，里面包括matlab的三次样条曲线程序，有Jacobi迭代法和Gauss-Seidel迭代法等(The programming and data analysis for the matrix class programming operations program, which includes the cubic spline curve matlab procedures, Jacobi and Gauss-Seidel iterative method iterative method)
- 2013-07-11 10:49:54下载
- 积分：1
