wxMini-PayDemo

本设计是基于单片设计的一个能实现语音存储和回放功能的系统，利用宏晶公司生产的STC90系列单片机作为主控制器，使用具有录音和放音功能的ISD4004语音芯片，能够显示32个字符的LCD1602显示器件和能对音频进行无失真的放大的TDA2822M差分放大器设计而成的。首先我们利用STC90C516RD+单片机的优越的控制性能来控制ISD4004语音芯片，通过单片机向语音芯片发送指令来完成ISD4004芯片的录音和放功能，用LCD1602来显示单片机对ISD4004的操作状态，使用TDA2822M将ISD4004芯片输出的音频进行无失真的放大的思路来进行语音存储和回放系统设计的，用Circuit Design Suite 10.0(Multisim)软件来绘制该系统的电路，用Keil uVision5软件来编写硬件程序。电路图和程序都完成后使用万用洞洞板依据电路图来焊接实物电路，实物完成后载入芯片程序直接进行实物调试，使用实物调试更容易找出问题和系统设计的缺陷，出现问题时可以通过模块化思想轻松查找到故障原因，并进行修复故障。ISD4004芯片录音时基于多电平存储技术实现的没有传统的数字录音过程中A/D转换带来的量化噪音和变色的金属音色。该系统录取的声音播放出来后和原音的音色、音调保持一致不失真。(This design is based on the single chip design of a voice storage and playback system, using STC90 series MCU produced by Hongjing Company as the main controller, using ISD4004 voice chip with recording and playback function, can display 32 characters LCD 1602 display device and can amplify audio without distortion. TDA2822M differential amplifier is designed. Firstly, we use the superior control performance of STC90C516RD + MCU to control the ISD4004 voice chip, send instructions to the voice chip through MCU to complete the recording and playback function of ISD4004 chip, use LCD1602 to display the operation status of MCU to)

AH简单下载系统-AH simple Download System Proposed

C11 标准 草稿版, ISO 2011年出版。详见文档内部说明(this is c11 iso draft published in 2011)

说明：  2010CB945500-组织干细胞识别、谱系重编程和示踪研究——相关学习资料，仅供个人学习参考，禁止用于商业目的(2010 CB945500 - Tissue Stem Cell Recognition, Genealogical Reprogramming and Tracer Research - Relevant Learning Materials for Individual Learning Reference only, Banned for Commercial Purpose)

产生电压暂降，暂升，波动，振荡，谐波等多种电能质量单一和复合扰动问题(Compound disturbance of power quality)

说明：  MPPT控制器的全称“最大功率点跟踪”（Maximum Power Point Tracking）太阳能控制器，是传统太阳能充放电控制器的升级换代产品。所谓最大功率点跟踪，即是指控制器能够实时侦测太阳能板的发电电压，并追踪最高电压电流值(VI)，使系统以最高的效率对蓄电池充电。下面我们用一种机械模拟对比的方式来向大家解释MPPT太阳能控制器的基本原理。(The full name of MPPT controller is "Maximum Power Point Tracking" solar controller, which is an upgrade product of the traditional solar charge and discharge controller. The so-called maximum power point tracking (MPPT) means that the controller can detect the generation voltage of solar panels in real time, and track the maximum voltage and current (VI), so that the system can charge the battery with the highest efficiency. Next, we will explain the basic principle of MPPT solar controller in a way of mechanical simulation and comparison.)

C# GetMachineIP 获取本机IP的源码，实现步骤：定义一个变量，用来记录IP地址,System.Net.IPAddress[] addressList = System.Net.Dns.GetHostByName(System.Net.Dns.GetHostName()).AddressList;//获取IP地址列表,然后遍历IP地址列表，获得遍历到的IP地址，最后显示IP地址。

说明：  一个交互式的计算器。 1. 用顺序表来完成任意同维度向量的计算，包括加法、减法、夹角余弦值等。 2. 使用顺序表、链表来完成任意一元多项式的计算，包括加法、减法、乘法、导数(包括任意阶)等。 4. 四则运算表达式求值。 5. 含单变量的表达式求值。 6. 定义并运行简单函数。 7. 保留函数定义历史，并可以运行历史函数。 8. 函数的调用。 9. 操作数的各种字面常量的处理。 10. 支持矩阵的运算。(An interactive calculator. 1. Complete the calculation of any vector of the same dimension with the sequence table, including addition, subtraction, angle cosine value and so on. 2. Use order list and chain list to complete the calculation of any one-variable polynomial, including addition, subtraction, multiplication, derivative (including any order), etc. 4. Four Operational Expressions. 5. Evaluation of expressions with univariates. 6. Define and run simple functions. 7. Retain function definition history and run history function. 8. Call of function. 9. Processing of literal constants of operands. 10. Supporting matrix operations.)

说明：  主要用于圆二色谱中计算蛋白质二级结构的软件，该软件是16位系统能安装(It is mainly used to calculate the secondary structure of protein in circular dichroism, which can be installed in 16 bit system)

大规模风电场建模，包含鼠笼电动机及双馈感应电动机，及其控制系统(Modeling and simulation studies of a wind farm offer a means to mitigate technical and operational risk by enabling the engineering team to explore design trade-offs, assess control and management system operation, estimate achievable production with confidence, and perform fault studies in a safe and repeatable environment. In this webinar, MathWorks engineers show how MATLAB and Simulink are used to model and simulate large-scale wind farms that contain hundreds of separate wind turbines. Simulink features such as block callbacks, model reference and parallel model reference build are used to provide a framework for efficient large-scale model development.)