170417 LM723过流保护直流可调稳压电源

对五星级酒店的管理！只实现定房，退房，查商品的功能！-The management of the five-star hotel! Only to achieve the set room, check, check functional product!

这是用matlab编写的显示积分方法中心差分法的源程序，可用于求解微分方程描述的工程问题和相关仿真-This is prepared using matlab central difference integration method shows that the source method can be used to solve differential equations to describe the engineering problems and related simulation

说明：  12v1kw通用纯正弦逆变器资料，包括原理图和原理说明(12v1kw universal sinusoidal inverter data)

一个简单的计算hurst指数的matlab程序(A simple calculation of Hurst index of matlab program)

根据渗流力学原理，通过分析油井的不稳定试井数据求取地层参数；附带有数据。-According to seepage mechanics, through the analysis of instability in oil well test data to strike a formation parameter incidental data.

一个关于C，JAVA，ORACALE面试的题目集合-A C, JAVA, ORACALE interview subject collections

易买网项目源码：内有购物车功能，登录，注册，订单管理，商品管理等功能(Easy to buy network project source code: there are shopping cart function, login, registration, order management, merchandise management functions)

资源描述z-wave SDK 如果有开发z-wave通信协议的童靴可以借鉴下哦 资料很全的，有相应的PDF说明文档！

windows api 在pb中的定义说明,希望对pb编程爱好者有所帮助-windows api pb in the definition shows, and I hope to pb programming enthusiasts help

电机温升测试系统,适用于工作频率为50/60Hz的单/三相小功率异步电机（≤5KW）、串级电机、电动工具的绕组温升测量。适用于工作频率为50/60Hz的电源变压器、充电器、电感镇流器的绕组温升测量。带电原理：在带电工作情况下测量绕组的直流电阻，并用公式折算成温升。专为电动工具定子，转子温升测量而开发，其中定子采用带电法，转子采用断电法-motor temperature test system is applicable to the frequency of 50/60Hz single/three-phase asynchronous motors power the small ( 5KW), Cascade motor, electric tools winding temperature measurement. Applicable to the frequency of 50/60 Hz power transformers, chargers, the inductance ballasts winding temperature measurement. Charged Principle : Live in work measurement of the winding resistance DC, and the formulas used converted into temperature. Electric tools for the stator and rotor temperature measurement and development, which use charged stator, rotor features a power law