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于 2021-04-21 发布

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下载积分: 1 下载次数: 4

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说明：一维波动方程的间断有限元计算，包括网格的划分，数值积分的计算等。(Discontinuous finite element method for one-dimensional wave equation, including mesh division, numerical integration calculation and so on.)

文件列表：

NDG, 0 , 2020-10-05
NDG\DGtools.m, 14070 , 2013-12-04
NDG\IC.m, 1350 , 2013-12-05
NDG\license.txt, 1384 , 2014-02-12
NDG\mesh1d.m, 14619 , 2013-11-24
NDG\residual.m, 1282 , 2013-12-04
NDG\wave1d_NDGdriver.m, 3167 , 2013-12-05

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hPSO
hybrid particle swarm optimization

2016-09-16 22:36:56下载

积分：1
wavelet_fractal_compressor
fractal compression using wavelet

2020-06-20 03:20:02下载

积分：1
main
Concert c++ example of facility location problem. C++ concert technology is a registered trademark of ILOG CPLEX

2009-03-05 08:56:13下载

积分：1
oofem-2.0.tar
最新版的oofem 可以自己加入一些材料模型版本更新速度也算快(latest version of oofem )

2011-02-14 16:40:16下载

积分：1
energy-leakage--dual-tree
首先根据高斯白噪声频率充满整个频带的特性，通过双树复小波包变换对高斯白噪声进行分解，利用频带能量泄漏的定量分析方法，验证了双树复小波包变换具有较低的频带能量泄漏特性；其次利用双树复小波包变换逐层分解信号，对每层分解所得分量求其FFT谱的峭度，得到基于双树复小波包变换的谱峭度图，根据图中峭度最大的原则，可以自动准确的选择信号分解最佳层数和最佳分量；最后将基于双树复小波包变换的谱峭度图的故障诊断方法应用于实际工程中，对齿轮故障振动信号进行分析，选择最佳分解层数和分量后利用希尔伯特包络解调，有效准确地提取了故障特征信息，验证了方法的可行性和有效性(The parameters of a filter were determined by experience, and that has a great influence on the results of signal processing. The discrete wavelet packet transform has a larger energy leakage of frequency band, which obviously affected the results of the envelope demodulation. It is necessary to have a method with a lower energy leakage of the frequency band before envelope demodulation. The dual tree complex wavelet packet transform (DT-CWPT) was a new signal processing method that had many good qualities. Because the energy leakage of the frequency band was smaller when the signal was decomposed by a dual tree complex wavelet packet transform, the dual tree complex wavelet packet transform was used to extract the fault feature information in the field of fault diagnosis. In this paper, first, according to the characteristics of Gaussian white noise, whose frequency was full of the whole frequency band, Gaussian white noise was decomposed by a dual-tree complex wavel)

2014-05-28 17:13:41下载

积分：1
BEM
圆柱绕流边界元程序用边界元的方法计算圆柱绕流(flow around colomn )

2012-02-07 09:36:36下载

积分：1
wangluotuopu
功能是将邻接矩阵或关联矩阵变为有向或者无向网络图，有结果显示。(Function is to convert the adjacency matrix or the correlation matrix becomes directed or undirected network diagram, results show.)

2021-02-06 08:49:56下载

积分：1
css
用visual basic编译的布谷鸟算法的源代码,是一种很好地启发式智能算法。(Use visual basic compiler cuckoo algorithm source code, is a good heuristic intelligent algorithm. )

2013-07-19 17:02:51下载

积分：1
AGJDN
压缩包包含三个文件：全主元高斯-约当消元法程序AGJDN.m；基于全主元高斯-约当消元法的迭代求解病态矩阵方法AGJDNM.m；AGJDN.m的测试方程。程序参考自：Fortran常用算法程序集（第二版）徐世良编。AGJDN.m能求解部分病态矩阵，而AGJDNM.m对于我的测试矩阵效果不佳，但也一并上传，仅供参考。错漏之处，还望指正。 (Gaussian-Jordan elimination base on all principal element.)

2014-12-09 15:22:12下载

积分：1
PSO
针对传统的算法如遗传算法、粒子群算法等在TSP问题上求解精确性和求解规模上都还有一定的不足，本文提出了一种基于动态规划思想的粒子群优化算法。该算法用动态规划的方法实现粒子间的信息交互和粒子的进化，并且将粒子群中的粒子按无标度信息指导网络拓扑图的方式进行连接。仿真结果表明该方法能有效地减小误差率，提高解的精确，同时还保持了较低的计算复杂度，具有良好的稳健性。(TSP problem solving for the traditional algorithms such as genetic algorithms, particle swarm optimization accuracy and solving the scale, there is a certain lack of a dynamic programming algorithm-based particle swarm optimization algorithm. The algorithm using dynamic programming method to achieve the evolution of information exchange between the particles and the particles, and particle swarm particle scale-free information guide network topology map to connect. The simulation results show that this method can effectively reduce the error rate and improve the solution precision, while maintaining a low computational complexity, good soundness.)

2013-01-07 18:05:35下载

积分：1

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