The selective bromination of p-hydroxybenzaldehyde(HBD) with benzyltrimethylammonium tribromide in dichloromethane-methanol was studied.

The effect of different temperature and the addition of organic alcohol and inorganic salts on the CMC of CTAB are discussed by means of bromide ion selective electrode.

Studies on catalytic reaction of selective oxidation of isobutylene to methacrolein;

Study on the preparation of acrylic acid by propane selective oxidation;

Effects of shot peening on the selective oxidation of 1Cr13 alloy;

Optimization of Enhanced Coagulants and Mode in the Treatment of the Freezing Point Water;

Superficial views on optimization of mining method

In this paper,the modern theory of milling and the optimization technique are appliedto the establishment of the mathematical model of face milling to obtain the optimum face millingparameters,in which the highest productivity or the lowest machining cost are the optimum ob-jective,and many constraints are taking into consideration.

Variance contribution method is used for the optimization selection of correlative factors, and forecasting accuracy is discussed.

According to the characteristic of ecological migration,an index system for optimization selection can be set up,making use of AHP method to determine index weight.