Microstructure Evolution of Hypereutectic Al-Si Alloy Semi-slurry in Holding Temperature;

The temperature protection s incorrect trip in auxiliary equipment system of the thermal power plant often happens for the sudden changing of the temperature measurement value.

At present, temperature protection is used in small capacity single-phase motor.

The discourse presents an improvement of the band-gap voltage reference s circuit design, which integrates with the thought of the temperature protection and the curvature compensation that employs the current feature of MOS device in the sub-threshold region.

Through taking a series of measures, such as optimizing thesteel feed heating temperature,optimizing the keeping temperature rule of the heating furnace,enhancing the preheating temperature and burningcontrol of the hot air furnace etc, in the result unit fuel consumption had been obviously reduced.

Separately discusses of ovary the preserved temperature,the retention time,the different raise system to the cow in vitro fertilization cleavage rate,the pouch embryo growth rate influence.