Concludes that the severe cracking of heat exchanger tube of the high temperature heat exchanger results in the decrease of cooling capacity according to the analysis of strong solution concentration.

The effect of different dissolved oxygen concentration on the biomass and other fermentation parameters was investigated in the process of ethanol fermentation using stirred tank fermentor.

By this module, a fuzzy PID control system realized to perform the control of dissolved oxygen in industrial fermentation process through CIMPLICTY, a process control software of GE company.

Influence of absorption pressure, solution concentration, temperature and flow rate of the cooling water in the lithium bromide absorption chiller on the absorption process;

Improvement of measuring the salt solution concentration by laser speckle method;

To eliminate the measurement errors arisen from light source intensity and wavelength fluctuation,a method of measuring solution concentration by glancing incidence was proposed.

Studies on the effect of dissolved oxygen concentration on the growth of the biocontrol agent strain PBW1 of plant bacterial wilt

Aiming at the dissolved oxygen concentration characteristic in the biofermentation process,combining the application of selftuning fuzzy adaptive PID control theory in predictive control system,the new control system was presented.