Based on the compound orthogonal experiment method, the parameter optimization of ploughing-extrusion process with single tooth was studied to provide reference for the optimal design of the process with multi-tooth of inner walls of heat pipes.

The orthogonal and combinative test of adding fly ash (FA) and calcium lignosulphonate(Ca-L)in cement fillings;

Optimum extracting technology of Wikstroemia indica by orthogonal test;

Optimization on the process of electroless Ni-P-SiC composite plating with orthogonal test;

Study on optimum process for semi-bionic extraction of total flavonoids from Toona sinensis(A. Juss.)Roem. leaves by orthogonal test;

Preparation techniques of hemslein drop pills by orthogonal design;

Optimization of Extraction Process of Arnebia euchroma(Royle) Johnst. by Orthogonal Design;

Optimization of processing technology of pazufloxacin mesilate drop pills by orthogonal design;

Optimization study of lime-upright-furnace briquette used as a substitution for coke with orthogonal experiments;

Studies on process for super-fine comminution of rice bran by orthogonal experiments;

Optimization of the Water Decocting Technique of Guyanning Granules by Orthogonal experiments;