Dynamic X-ray film investigation of influence of lumbar curvature on cervical curvature;

To evaluate the effect of a modified open door laminoplasty using anchor method on reducing the occurrence of axial symptoms and loss of cervical curvature.

Objective To investigate the association between cervical curvature and cervical sympathetic symptoms.

An introduction is given to the construction size distribution curve and opening size distribution curve of geo textiles and their correlative probabilistic analysis, and the seepage path m is considered as a notable parameter in filter design.