GKP

建立水声信道的射线模型在工程应用上有重要的意义。射线声学是把声波的 传播看作是一束无数条垂直于等相位面的射线的传播，每一条射线与等相位面相 垂直，称为声线。声线途经的距离代表波传播的路程，声线经历的时问为波传播 的时间。声线束所携带的能量即为波传播的声能量。与几何光学相似，射线声学 的描述方法给人直观的感觉，在一定的条件下，射线声学的数学运算也比较简捷， 由射线理论给出的声线图可以给声场以直观、形象的理解。 本模型可以准确的衡量声波在海洋中传播路径(Establishing ray model of underwater acoustic channel is of great significance in engineering application. X-ray acoustics refers to sound waves. Propagation is regarded as the propagation of a bunch of innumerable rays perpendicular to the isophase plane, each ray being in phase with the isophase plane. Vertical, called sound line. The distance through which the sound line Travels represents the distance of the wave propagation, and the time that the sound line experiences is the wave propagation. The time. The energy carried by the sound beam is the sound energy of wave propagation. Like geometric optics, ray acoustics The descriptive method gives people an intuitive feeling. Under certain conditions, the mathematical operation of ray acoustics is relatively simple. The sonogram given by ray theory can give an intuitive and visual understanding of the sound field.Accurate measurement of sound wave propagation in the ocean)

EXERCICE CHM 3 ANNEE SECONDAIRE

说明：  利用SIMETRIX实现的驱动电路仿真设计。(Simulated design of driving circuit based on SIMETRIX.)

说明：  PSCAD file for load scheduling

逆变器基于锁相环的PI并网控制(含谐波分量的误差)(Inverter based on phase-locked loop PI control (including harmonic component error))

靠近杂货店老板 就可以卖了 里面有具体视频教学(Near the grocery store owner, you can sell it)

说明：  输入海水温度、盐度等参数，能够计算不同频率下的海水介电常数(sea water dielectric constant)

耳朵音乐-PHP在线听歌系统，是一款PHP开源音乐系统，每个使用耳朵音乐的用户，都会有一个用户中心，类似于UCHome的样式，并支持在线FTP和录音上传功能，可建立自己的音乐专辑，内核由高速模板引擎与缓存机制等框架相结合开发而在，运行速度快。耳朵音乐20160623升级列表： 　　音乐页面增加评论功能 　　优化内置模板播放器的一个细节...

求大数的阶乘问题源代码,在vs2005上亲自调试过,(For the large number of factorial problem source code, in the vs2005 personally debugged,)

这是一个用D6实现的对LineGuard进行通信的简单例程,通过该程序，你可以对Modbus协议有一个基本的了解-This is a realization of the D6 used to communicate LineGuard simple routines, the adoption of the program, you can right Modbus has a basic understanding