Study on the extracting craft of flavonoids in corn-bracts with ultrasonic and colorimetry, the best distilled conditions were: the ultrasonic power 700W, the extracting temperature 60OC , the proportion (mL/g) of materials 1 : 50, the concentration of ethanol 60%, the extracting times 35min, the most rate of total flavonoids 1.

Corn bract reduces the leukocyte apoptosis and CD_(44) expression in rabbits with atherosclerosis;

Results:Corn bract could reduce the levels of serum TC,TG,VLDL as compared with the model group.

Morphology measure and 3D reconstruction of corn leaf based on machine vision;

Through close observation and research on the morphological formation, as well as growth rules of corn leaf, and combined with some knowledge in agriculture the mathematic model for changes on morphology in corn leaf was brought forward.

The mathematical model of maize blades was established by analyzing the actually measured data.

The results showed that:(ⅰ)in a specific range of water stress ,peroxidase activity in corn leaves increased with the decline of soil water content,however,enzymatic activity decreased when the water stress was overwhelmed;(ⅱ)there was variation of enzymatic activity of corn leaves grown in dry red soil and ve.