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SPFEM
随机有限元理论教材，是学习随机有限元及可靠度理论的不错东东
(Stochastic finite element theory of teaching materials, are studying stochastic finite element and reliability theory is true Dongdong)
- 2020-11-22 10:19:35下载
- 积分：1
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vf-udf
膜渗透 FUENT UDF 气液两相流 (Gas-liquid two-phase flow membrane permeation FUENT UDF)
- 2020-12-01 16:09:26下载
- 积分：1
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Factorial
C++的求阶乘的程序，对本科C++课程可能有些帮助(Factorial in C++ program, it maybe helpful for some C++ course)
- 2011-12-22 17:46:43下载
- 积分：1
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cx
说明： 在科学与工程计算中，经常遇到求解非线性方程组的问题；非线性方程组在收敛速度及收敛性比线性方程组要差，特别对于非凸的非线性方程组，其求解更是困难。下面简要介绍非线性方程组的三种解法——牛顿法、拟牛顿法、同伦算法，分析三种解法的适用性，并附Matlab原程序。(Scientific and engineering computing, often encounter the problem of solving nonlinear equations speed of convergence of nonlinear equations and linear equations worse than convergence, especially for non-convex nonlinear equations, which is even more difficult to solve . The following briefly describes three solutions to nonlinear equations- Newton method, quasi-Newton method, homotopy method, the applicability of the three solutions, along with Matlab original program.)
- 2016-03-12 10:57:01下载
- 积分：1
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LINGO11汉化无限变量版
说明： MATLAB的一个使用工具箱，LINGO11汉化无限变量版。(A toolbox of MATLAB, LINGO11 Chinese Infinite Variable Edition.)
- 2020-06-22 04:40:02下载
- 积分：1
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a-TEM-program
一个小的瞬变电磁测深数据处理程序，主要用于计算视电阻率和深度.(a small transient electromagnetic sounding data processing procedures, mainly used in the calculation of the apparent resistivity and depth
)
- 2012-04-23 09:52:30下载
- 积分：1
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matlab版本的动态非结构网格划分程序
matlab版本的动态非结构网格划分程序，希望对你们有用，欢迎下载。(matlab version of the dynamic non-structural meshing program, I hope useful to you, welcome to download.)
- 2012-12-05 13:41:25下载
- 积分：1
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vlmd
计算低速气动力的涡格法程序，来自NASA，可信度高(This is a vortex lattice aerodynamic program from the low speed aerodynamics group at NASA Langley)
- 2021-03-17 18:19:21下载
- 积分：1
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high-resolution-one-dimension
高分辨率要求系统具有大的带宽，瞬时带宽的增加必将提高系统对硬件的要求，本文采用方便灵活的步进频率波形信号。脉间频率步进波形通过子脉冲载频的步进变化来获得大的有效带宽，使成像具有高分辨率，采用加窗和补零方法提高信噪比，但该信号对目标径向速度非常敏感。采用补零方法提高距离取样分辨率，使距离像细化，并用公式说明了补零只能提高距离取样分辨率，并不能改变频率步进信号的距离分辨能力。该信号波形对目标径向速度的敏感，使目标能量分散到邻近的距离单元造成距离分辨率下降，如果不事先进行速度补偿，直接对回波信号进行逆傅立叶变换，将使所成一维距离像发生频谱展宽，并伴有距离像发生平移。本文证明了当目标有径向速度时仍采用对回波信号直接进行逆傅立叶变换的方法将使一维距离像发生频谱展宽并伴有距离像发生频移，从而严重影响了一维距离像的质量。(high-resolution requirements of the system with large bandwidth, the increased instantaneous bandwidth will improve the system of hardware, In this paper, a flexible and convenient step frequency signals. Pulse frequency step-pulse waveform through the carrier frequency step to achieve great changes in the effective bandwidth. make imaging with high resolution, increasing the window and fill methods to improve signal-to-noise ratio is, However, the signal on the target radial velocity is very sensitive. Using zero-distance sampling method to improve resolution, so that distance as refinement, and formulates a zero-distance sampling can improve resolution, does not alter the frequency of the signal from stepping resolution capabilities. The signal waveform on the target radial velocity sens)
- 2007-04-07 22:15:33下载
- 积分：1
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bfgs
最优化的bfgs算法，是采用matlab编程(BFGS optimization algorithm, using matlab programming)
- 2008-12-11 21:15:55下载
- 积分：1
