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《STM32自学笔记》所附源代码，包含各种功能的应用案例，建议结合书本查阅。(The " STM32 Study Notes attached to the source code, Case includes a variety of features, it is recommended that the combination of books inspection.)

用ABAQUS扩展有限元方法模拟水里压裂的例子。(The program developed in Python language is mainly used to simulate the hydraulic fracture on ABAQUS platform. Plastic damage model is adopted for cement sheath.)

说明：  提取信号七个基于瞬时信息的特征：零中心归一化瞬时幅度功率谱密度的最大值,零中心归一化瞬时幅度绝对值的标准偏差，零中心非弱信号段瞬时相位非线性分量绝对值标准偏差，零中心非弱信号段瞬时相位非线性分量标准偏差，零中心归一化的非弱信号段瞬时频率绝对值的标准偏差，一个信号段的归一化瞬时频率功率谱密度的最大值，根据信号 QPSK 和16QAM在 XI 轴投影的不同表现，提出特征参数。(Extraction based on instantaneous information signal of seven characteristics: zero center normalized instantaneous amplitude of the maximum power spectral density, zero-center normalized standard deviation of the instantaneous rate of absolute zero center section of non-weak signal instantaneous phase nonlinear component absolute value of standard deviation, non-zero center section of the weak signal non-linear component of the standard deviation of the instantaneous phase, zero-center non-normalized absolute value of the weak signal section of the standard deviation of the instantaneous frequency of a signal segment of the normalized power spectral density of instantaneous frequency maximum, according to the signal QPSK and 16QAM in the XI-axis projection of the different performance of the proposed characteristic parameters.)

不错的自制示波器资料。适合个人学习和DIY。主控IC为（STM32F103Zet6）。（备注：个人收藏资料）(Good homemade oscilloscope information. Suitable for personal learning and DIY. Master IC is (STM32F103Zet6). (Note: personal collection))

说明：  MFC Windows程序设计(第二版) 源代码，非书籍(MFC Windows Programming (2nd Edition) source code, non-books)

滑模变结构控制本质上是一类特殊的非线性控制，其非线性表现为控制的不连续性，这种控制策略与其它控制的不同之处在于系统的“结构”并不固定，而是可以在动态过程中根据系统当前的状态(如偏差及其各阶导数等)有目的地不断变化，迫使系统按照预定“滑动模态”的状态轨迹运动。由于滑动模态可以进行设计且与对象参数及扰动无关，这就使得变结构控制具有快速响应、对参数变化及扰动不灵敏、无需系统在线辩识， 物理实现简单等优点。该方法的缺点在于当状态轨迹到达滑模面后，难于严格地沿着滑模面向着平衡点滑动，而是在滑模面两侧来回穿越，从而产生颤动，即抖振问题。 中文名 滑模变结构控制 外文名 Sliding Mode Variable Structure Control 别 称 滑动模态变结构控制(Sliding mode variable control)

arm9的一些基础知识，有利于初学者用。有关ARM9微处理器系列方面的介绍。(arm9 some basic knowledge will help beginners to use. Aspects of the ARM9 family microprocessor introduction.)

LMI 控制工具箱，采用内点法的 LMI 求解器，这些求解器比经典的凸优化算法速度有了显著提高。另方方面，它采用了有效的LMI结构化表示，在求解和计算领域做出了重大贡献。(The LMI control toolbox uses the LMI algorithm of the interior point method. These solvers have significantly improved the speed of the classical convex optimization algorithm. On the other hand, It uses effective LMI structured representation, and has made significant contributions in solving and computing fields.)

各种C语言基础练习及代码答案，适合C语言初学者。(Basic C language exercises and code answers.)

Branka Vucetic,Jinhong Yuan著的空时编码技术一书的源程序，对于学习MIMO系统空时编码技术很有用。(Branka Vucetic, Jinhong Yuan with the space-time coding techniques one source book for studying space-time coding MIMO system technology very useful.)