PCI_Code-Folder

abaqus中的粘弹塑性的UMAT程序实例以及讲解(abaqus in the visco-elastic plastic process examples and explanations of the UMAT)

采用神经网络和多元回归对人均GDP进行预测并建模-Using neural networks and multiple regression to predict the per capita GDP, and Modeling

JASON解析，打包等测试例程，包含头文件,C文件，test文件等(void doit(char *text) { char *out;cJSON *json; json=cJSON_Parse(text); if (!json) {u1_printf("Error before: [%s] ",cJSON_GetErrorPtr());} else { out=cJSON_Print(json); cJSON_Delete(json); u1_printf("%s ",out); free(out); } })

直流交流电机的调速，包括开环调速、闭环调速，矢量调速，直接转矩调速，转速频率差调速，附件为其部分源代码(DC-AC motor speed control, including the open-loop speed control, closed loop speed control, Vector Control, Direct Torque Control, Speed ​ ​ governor frequency difference, annex part of the source code for its)

说明：  通过模拟退火算法解决旅行商问题，能够通过运行(The simulated annealing algorithm is used to solve the traveling salesman problem)

(1) 设计一个程序，用于根据用户输入的命令行参数数量来计算长方形、正方形、三角形的面积。如果输入的参数为一个、二个、三个则它们应分别对应正方形、长方形、三角形，如果没有参数，则通过异常处理方法现实错误消息。（用于计算面积的方法是一个重载的方法。提示：定义一个抽象的父类，并提供一个抽象的方法area(). 再派生出三个子类，重写area()方法，然后在main方法中用多态来实现具体的面积函数的调用）。-(1) design a program based on user input for the command line parameters to calculate the number of rectangular, square, triangle area. If the input parameter is one, two, three then they should correspond to a square, rectangle, triangle, without parameters, exception handling through the real error message. (Used to calculate the area is an overloaded method. Note: the definition of an abstract parent class, and provides an abstract method area (). To send birth to three sub-classes override area () method, and then in main method using multi-state to achieve a specific area of a function call).

LDPC码的编译码原理，详细完整，是了解LDPC码基础知识的很好的材料(LDPC code encoding and decoding principles, detailed and complete, is to understand the basics of LDPC codes of good material)

一种基于四阶累积量的谐波恢复的方法，在噪声抑制和谐波估计方面具有一定的优势。(A four-order cumulant-based harmonic retrieval methods, in the noise suppression and harmonic estimates have certain advantages.)

说明：  Freescale BLDC demo for KE04

这是一个项目，火箭被点燃，然后在空中爆炸。