脉动风荷载

1、将根目录下backup目录下的数据库复制到m 联合开发网 - pudn.com

pipe类 pipe类 pipe类 pipe类-pipe-type pipe-type pipe-type pipe-type pipe-type pipe-type

说明：  异步电机作为电网中较为主要的负荷，对其的控制一直是重要问题。在异步电机的起动过程中，若直接起动，则会引起较大的电流，会影响电网的稳定和安全；且起动转矩和运行效率也较低。为改善上述问题，使用软起动器对异步电机进行起动，可实现启动电压的无极调节，从而限制启动电流，可在一定程度上改善电机性能。本文采用电流闭环作为控制方式，并采用MATLAB对异步电机软起动系统进行模型搭建和仿真，进而说明了软起动的优势。(As the main load in the power network, the control of asynchronous motor is always an important problem.In the starting process of asynchronous motor, if directly started, it will cause a large current, will affect the stability and safety of the power grid;The starting torque and operating efficiency are also low.In order to improve the above problems, the use of soft starter to start the asynchronous motor can realize the non-pole adjustment of starting voltage, thus limiting the starting current, which can improve the motor performance to a certain extent.In this paper, the current closed-loop is adopted as the control mode, and MATLAB is used to build the model and simulate the soft starting system of asynchronous motor, and then the advantages of soft starting are illustrated.)

一个很不错的评标系统，欢迎下在，做评标的可以参考，本人觉得确实不错-A very good evaluation system, welcome in, can make the evaluation of reference, I feel really good

反演地震剖面，详细说明文档和例子，实用性强(Inversion of seismic profiles, detailed documentation and examples)

java 实现的烟雾效果,程序简单但效果生动-smoke effects, a simple but vivid effect

《Visual C++游戏开发经典案例详解》书中的源代码，希望对大家有一些帮助！(" Visual C++ game development classic cases." book of the source code, we hope to have some help! )

说明：  power electronics and drives simulation

This is an SDK for nRF51822 Bluetooth module, it use for programming in Keil IDE.

麦克风阵列增强入门资料，麦克风阵列语音增强算法研究(Introduction to Microphone Array Enhancement and Research on Microphone Array Speech Enhancement Algorithms)