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ModelC_alloy
说明： 相场法材料计算的modelc-alloy 对应的基础代码，自取基础有用(The basic code corresponding to modelc-alloy for phase field method material calculation, useful for self-extraction)
- 2020-06-25 12:40:02下载
- 积分：1
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eof
EOF（经验正交函数分解）可以进行时空分离，同时也可以分析周期规律(EOF (empirical orthogonal function decomposition) can be temporal separation, but also can analyze cycle regularity)
- 2013-11-29 22:32:55下载
- 积分：1
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PMSG-paper
永磁直驱风机相关文献，对于初学者，你值得一看(PMSG paper)
- 2014-11-04 11:22:37下载
- 积分：1
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shipinfenxi
时频分析方法提供了时间域与频率域的联合分布信息，清楚地描述了信号频率随时间变化的关系。(Time-frequency analysis method provides a time-domain and frequency domain, the joint distribution of information that clearly describes the signal frequency versus time relationships.)
- 2013-08-05 09:42:58下载
- 积分：1
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Problem1
说明： 用fortran 70实现数值积分，并实例计算了三个函数，导出了积分值和误差(The numerical integration is realized by FORTRAN 70, and three functions are calculated with examples. The integral values and errors are derived.)
- 2019-04-16 20:49:25下载
- 积分：1
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PlateOfElasticStatic
二维弹性力学边界元程序中调试中的问题，有助于初学者从中发现问题，学习编写程序(Plate of Elastic Static)
- 2011-06-09 11:23:08下载
- 积分：1
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NLBCPE
说明： 建立水声信道的射线模型在工程应用上有重要的意义。射线声学是把声波的
传播看作是一束无数条垂直于等相位面的射线的传播，每一条射线与等相位面相
垂直，称为声线。声线途经的距离代表波传播的路程，声线经历的时问为波传播
的时间。声线束所携带的能量即为波传播的声能量。与几何光学相似，射线声学
的描述方法给人直观的感觉，在一定的条件下，射线声学的数学运算也比较简捷，
由射线理论给出的声线图可以给声场以直观、形象的理解。
本模型可以准确的衡量声波在海洋中传播路径(Establishing ray model of underwater acoustic channel is of great significance in engineering application. X-ray acoustics refers to sound waves.
Propagation is regarded as the propagation of a bunch of innumerable rays perpendicular to the isophase plane, each ray being in phase with the isophase plane.
Vertical, called sound line. The distance through which the sound line Travels represents the distance of the wave propagation, and the time that the sound line experiences is the wave propagation.
The time. The energy carried by the sound beam is the sound energy of wave propagation. Like geometric optics, ray acoustics
The descriptive method gives people an intuitive feeling. Under certain conditions, the mathematical operation of ray acoustics is relatively simple.
The sonogram given by ray theory can give an intuitive and visual understanding of the sound field.Accurate measurement of sound wave propagation in the ocean)
- 2020-10-09 22:07:40下载
- 积分：1
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Source1
说明： 特征线法解非恒定流，计算浅水动力学，洪水波的演进(Characteristic Line Method for Unsteady Flow, Shallow Water Dynamics and Flood Wave Evolution)
- 2019-03-19 20:54:16下载
- 积分：1
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FORTRAN_MATLAB
本文档主要是解决fortran调用matlab函数的端口问题(This document is intended to solve the problem of port calls fortran matlab function)
- 2014-12-12 21:03:02下载
- 积分：1
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DESIIR
利用双线性Z变换设计巴特沃斯和切比雪夫I型IIR数字滤波器，包括低通、高通、带通、带阻四种形式。使用者只需指定通带、阻带的边缘实际频率及相应的衰减，便可输出数字滤波器 的级联形式的各子系统分子、分母的系数，并输出其幅频和相频响(Bilinear Z transform design Butterworth and Chebyshev Type I IIR digital filters, including low pass, high pass, band pass, band stop four forms. Users simply specify the passband edge frequency stopband actual and corresponding attenuation subsystems can form molecular cascade output digital filter coefficients of the denominator, and the output of its magnitude and phase frequency response)
- 2014-02-22 18:27:52下载
- 积分：1
