: proposed security agreement on the nature of the agreement is the main means o...

可以实现激光谐振腔的自再现；有利于了解激光腔的原理-Laser resonator can be achieved self-reproduction is conducive to understanding the principle of laser cavity

利用Visual Basic编写的小程序，一款模拟贪吃蛇的小游戏。-The use of Visual Basic procedures for the preparation of a small, a simulation game of Snake.

应用背景MP3播放器开发源码及电路图,使用AT89C51SNDIC-R0开发，有原理图和源代码，这款MP3播放器以at89c51snd1c为核心，以硬盘为存储介质，液晶屏为双行显示，每行显示7.5个汉字，这块液晶屏以ST7920作为主控制器，内部集成8129个汉字，液晶屏在这个播放器中用来显示歌曲名称以及一些播放状态。关键技术1)MCS51内核，可以利用单片及开发软件Keil软件方便开发mp3播放器，无需特殊软件平台；     2)MPEG I/II-Layer 3 hardware decoder       .独立MP3 Decoder      .支持48,44.1,32,24,22.05,16khz取样频率      .支持软件31阶音量控制,高中低音均衡控制      .重低音效果     3)集成DAC部件，支持PCM,IIS格式；     4)64K字节片上代码存储空间（100K次擦写寿命）     5)4K字节boot flash memory,USB/UART下载代码     6)集成USB1.1 device部件     7)MMC卡接口     8)IDE/ATAPI接口（HDD/CD-ROM Interface)     9)2通道ADC,8Khz取样     .......................    关于该芯片的具体信息，可以访问www.atmel.com获取at89c51snd1c的datasheet.    这款MP3播放器以at89c51snd1c为核心，以

％ 该Matlab程序基于牛顿－拉夫逊算法，用于计算已知导纳矩阵、PQ节点、PV节点、平衡节点(UA)的电力网络潮流 ％ U - 各节点母线电压 S - 各节点注入功率 S_net - 电力网络总损耗 ％ PQ_P - 实算PQ节点注入有功功率 PQ_Q - 实算PQ节点注入无功功率 ％ delt_PQ_P - 实算PQ节点有功功率修正值 delt_PQ_Q －实算PQ节点无功功率修正值 ％ delt_UA_P - 实平衡节点有功功率修正值 delt_U_2 - 实平衡节点电压平方修正值 ％ delt_PQV - 实算P Q U^2修正值 J - 雅可比矩阵 ％ e - 电压实部 f - 电压虚部 delt_ef - 电压实部与虚部修正值- The Matlab program based on the Newton- Raphson algorithm is used to calculate the admittance matrix is known, PQ node, PV node, the node balance (UA) the trend of the electricity networks U- the node bus voltage S- each node injection power S_net-- The total loss of electric power networks PQ_P- operator PQ is injected into active nodes PQ_Q- operator PQ is injected reactive power node delt_PQ_P- is considered the correct value of active power PQ node delt_PQ_Q- really count PQ node reactive power to amend the value of delt_UA_P- real active power balance of the correct value of the node delt_U_2- node voltage balance is the correct value of the square o

Samples are organized by chapter, and then by "application" or example name. You should open a project in Visual Studio .NET through the .sln (solution) file. Note that Visual Studio .NET automatically creates various temporary and debugging files in the obj and bin sub-directory for each project. The actual uncompiled code is only the .vb files that are contained in the root project directory.

这里实现跑马灯的方法是，依次灭掉前一个灯和点亮后一个灯，再延时一会，不断循环，就可以看到跑马灯的效果了。 请在编译后，进入仿真，点全速运行看结果-Marquee realize here the approach is to eliminate the former followed by a light and lit a lamp post, and then one will be delayed, and constantly cycle, you can see the effect of the Marquee. Please compiled into the simulation, watch the results point to run at full speed

c语言实现的fft变换，有兴趣的朋友可以-c language of fft transform, interested friends can see. .

这是一个用abel语言编写的三角波发生器-This is a language used abel triangular wave generator

数值积分的C程序-numerical integration of the C program

关于加气站的遗传算法实现，这是一个初学者的草稿，希望大家多提意见。-stations on the genetic algorithm, which is a beginner"s draft, we hope to speak up.