The temperature drop during cooling was simulated using field data,and temperature distribution along the fhickness under the conditions of continuous and interval cooling was compared,the linear regression model for water flowrate ratio was established and rational water flowrate ratio of continuous cooling and interval cooling mode was established.

Based on the method of neural network the relationship between the water demand ratio and the geometric and rheological characteristic parameters of fly ash was studied.

Effects of quality index,which are loss on ignition,SO_3,fineness and water demand ratio, on quality of fly ash are expatiated in this article.

Grade-Ⅰ fly ash has become an indispensable additive of low-strength and high-performance dam concrete,and its water demand ratio is an important quality index.

Analysis on the optimum mass area ratio(MAR) of all-glass evacuated tubular solar water heaters;

Relation between average daily efficiency of evacuated tubular solar water heaters and the mass area ratio is analzed,and method of correction to average daily efficiency is pressented.

Results show that mass area ratio (MAR) is a primary factor to average daily efficiency and instantaneous efficiency curve of tubular solar water heaters is not straight line.

The mixing ratio of rainwater qr is obtained from the R- qr relation (R is the rainfall rate), and the mixing ratio of water vapor qv in the model is replaced by q v = qv+qr Then, TRMM/PR data are used to modify humidity analysis obtained from conventional radiosonde data, and sensitivity experiments (STE) are perfor.