求解一维LAVAL管亚音速流动

tarjan算法求解有向图中的简单环，非常好用(Tarjan algorithm is very useful for solving simple rings in directed graphs.)

说明：  双馈风机变速仿真： 电压/无功控制下机组输出仿真； 电压/无功电网故障下输出仿真(Doubly-fed fan variable speed simulation: Unit output simulation under voltage / reactive power control; Output simulation under voltage / reactive grid faults)

mmg模型控制下的船舶运动控制来仿真模拟船舶航迹舵控制的船舶操纵性方程(Ship motion control under MMG model control is used to simulate ship maneuvering equation controlled by ship track and rudder.)

说明：  通过EDEM体积力耦合API源程序，实现流体曳力耦合(Through the edem volume force coupling API source code, the fluid drag coupling is realized)

说明：  基于SVPWM的电压型三相整流仿真系统，包括SVPWM模块，以及电流环和电压环的建模(The simulation system of voltage source three-phase rectifier based on SVPWM includes SVPWM module, modeling of current loop and voltage loop)

常规波束形成与最小方差无畸变算法性能对比（CBF、MVDR）(Performance comparison between conventional beamforming and minimum variance distortionless algorithm CBF MVDR)

说明：  六边形蜂窝自动建模插件，能在abaqus中自动建立蜂窝模型(Hexagonal honeycomb automatic modeling plug-in)

说明：  abaqus经纬编织织物模型，umat子程序(ABAQUS warp and weft knitted fabric model, UMAT subroutine)

单机动目标跟踪作业，有具体的程序使用说明(There are specific procedures to explain the operation of single machine moving target tracking.)

利用BP神经网络实现对民族，古筝，摇滚，流行四类音乐的有效分类。matlab实现，提供数据和详细代码，有解释！(The BP neural network is used to realize the effective classification of four kinds of music: nationality, zither, rock and roll, and popular music. Matlab implementation, provide data and detailed code, there are explanations!)