Objective: (1)To investigate the effects of Y maze learning and motor-driven wheel running on neural stem cell/precursor proliferation in the hippocampal dentate gyrus of adult rats.

Influence on the locomotive curve passing performance with wheel tread shape;

The interaction between wheel and rail results in the severe damage of the wheel tread,which is a problem that has not been resolved yet.

The digital camera is used as the picture collection system, with such measures as computer picture processing, optimum measurement position selection and system error rectification, the measurement precision for wheel flange height, wheel flange thickness and tread wear reaches 0 1 mm, and the non contact measurement of wheel set tread parameters and the intelligent data processing are realized.