Using the singular value decomposition and basic theory of matrix,this paper gives the real orthogonal equivalence canonical form of complex orthogonal matrix,and a necessary and sufficient condition that matrices are real orthogonally equivalent.

Study on optimizing operation parameters of wet heating treatment for kitchen waste with orthogonal experiments;

An investigation on quality standard and screening of formulation of AFWMNM tablet by orthogonal experiment;

The study on PAMCATS mix proportion optimization using orthogonal experiment;

Optimum extraction of polysaccharides from the root of Urtica fissa E. Pritz by orthogonal design;

Study on orthogonal design of preparation of silica sol by dissolving silicon powder;

Optimization of furong ointment’s extraction technics by orthogonal design;

Studies on Pogostemon cablin Benth. with SFE by Orthogonal Experiments;

With the yield rate of star anise oil and the relative content of trans-anethole in star anise oil as examine indexes,the orthogonal experiments of supercritical CO2 fluid extract and the randomized block design with two experimental factors of subcritical CO2 fluid extraction for star anise oil from Illicium erum Hook.

Using orthogonal experiments,the significant factors of adsorptive characteristics and elutive parameters of the process which were the discharge of solvent、the concentration of elutant and distill time were studied by yield of capsaicin.

Study on influence factors of dust collection in gradient impinging stream by orthogonal experimental design;

The influence factors of metal tubes press expansion including the thickness, the expansion distance and the sled mass were analysed by the orthogonal experimental design method.

The influences on the yield of solvents,reaction time,reaction temperature,catalyst and the amount of alkali were discussed,orthogonal experimental design was carried out to optimize the reaction condition and the yield was enhanced from 75% to 91.

Optimization of extracting technique for Coating Material of Yinxieling by orthogonal test;

Optimization of alcohol precipitation techniques for polysaccharides from Armillariella tabescens by orthogonal test;

Optimization of the Extracting Technology for Juhuang Shangqing Buccal Tablet by Orthogonal Test;