常物性流体在带直肋的环形通道内作充分发展层流对流换热，内表面为均匀壁温（周向），轴向则呈线性变化，外表面绝热。求：截面上速度分布、温度分布-Constant physical properties of fluid in the annular channel with a straight rib for fully developed laminar flow within the convective heat transfer, uniform wall temperature of t

51单片机设计的热表系统，串口传送温度差，单簧管脉冲控制中断计费。精确延时控制DS18B20,程序内有详细中文说明。-51 Single-chip design of heat meter system, serial transfer temperature difference, clarinet impulse control interrupt billing. Precise delay control DS18B20

Thesis "Mixed convection heat transfer in vertical horizontal and inclined pipes"

使用光敏和热敏传感器实现对光和热的数据的采集，使用串口将数据传输至上位机(Using photosensitive sensor and thermal sensor to realize the acquisition of light and heat data, using serial port to transfer data to the upper computer)