Stock_for_demo

微电网储能变流器的仿真，供大家参考学习，交流使用(Simulation of microgrid energy storage converter for reference and communication)

说明：  1. 院士陶文铨的经典书籍：数值传热学（第二版） 2. 做数值计算的人不可不看的书籍 3. pdf格式，加了书签，方便阅读(1. Academician Wen-Quan Tao classic books: Numerical Heat Transfer (second edition) 2. The people to do numerical computation can not see the books 3. Pdf format, added bookmarks, user-friendly)

（1）设计一个“简易计算器”，主要实现判断输入的表达式是否合法将中缀表达式转换成二叉表达式树。后序遍历求出表达式的值。能判断输入的表达式是否合法。 （2）用链式存储存储信息，求值时可以采用递归的思想，对表达式进行后序遍历。 （3）将操作结果保存到外部文件。((1) Design a "simple calculator" to judge whether the input expression is legitimate or not and convert infix expression into binary expression tree. The value of the expression is obtained by post-order traversal. Can judge whether the input expression is legitimate. (2) Store information in chain mode. When evaluating the value, we can use the idea of recursion to carry out post-order traversal of the expression. (3) To save the operation results to external files.)

说明：  ILI9488 TFT屏 16位驱动初始化程序(出厂代码)(ILI9488 TFT 16-bit driver initializer (factory code))

GY521--MPU6050 Gyroscope Data

Hello ! This is Atmega spi driver source. Thank you!

Using FKAttend.dll and FKViaDev.dll for Time Atendance Systems, Aplication for read and write Fingerprint attendance

安装步骤： 1. 系统开发语言：asp.net＋access/sql server，安装时需保证您的服务器对asp.net和access/sql server数据库的 支持。windows 2000,xp 用户需要安装.NET Framework 1.1 版可再发行组件包 ,.NET Framework 1.1 Service Pack 1,.NET Framework SDK 1.1 版。 请按上面的顺序依次安装,您的服务器即可支持asp.net。也可以省略上述过程直接安装visual stdio.net。 2. 将webshot文件夹复制的硬盘上某目录下，在IIS中建立虚拟目录指向该文件夹。 3.修改Web.config配置文件中，将“F:/web/dinghuidanhomecom/db/eshop.mdb”替换为正确的数据库文件绝对路径。 请注意斜杠/的方向。 数据库绝对路径：在IIS中建立虚拟目录指向webshot根目录文件夹后访问 http://localhost/aspcheck.aspx,其中的APPL_PHYSICAL_PATH变量可以给出webshot文件夹的绝对路径，在加上数据库相对 路径即可。注：必须用数据库绝对路径 4. 数据库位置在db/文件夹下，默认名称eshop.mdb,修改时请同时修改web.config中的数据库绝对路径-installation steps : 1. System Development Language :+ Asp. Net access/sql server installation and the need to ensure your server right Asp. Net and access/sql server database support. Windows 2000 and XP users need to install.NET Framework Version 1.1 Redistributable package.NET Framework 1.1 Service Pack 1.NET Framework SDK version 1.1. By the above sequence followed by the installation, your server can s

超酷海洋主题内容切换面板布局特效。该布局特效以海洋和潜水为主题，带音乐背景效果(Cool ocean theme content switching panel layout effects. The layout features ocean and diving themes with musical background effects.)

针对电力电子领域的需求，采用自然采样法设计了一个全数字三相SPWM信号产生系统IP软核．通过数字频率合成技术实现了对电源频率的辅确控制．使电源频率精度达到16位．其中。通过调节控制参数．分别实现了电源频率与载波频率的7级、8级控制．最后。搭建了基于FPGA的测试系统．验证了系统功能的正确性．(According to the requirement of power electronics, the natural sampling method for the design of a full digital three-phase SPWM signal generation system. The power frequency of IP core is the auxiliary control is implemented through digital frequency synthesis technology. The power frequency accuracy of 16. By adjusting the control parameters, 7 and 8 levels of power frequency and carrier frequency are realized respectively. Finally, the control of the power frequency and carrier frequency is realized. A test system based on FPGA is built, which verifies the correctness of the system function)