The hydrolysates as hair protection additive from ox horn and ox hair were prepared under different acidic conditions.

Two functional relationships,one is between the cable's pulling displacement and the bended Plexiglas's wrap angle,the other is between angular speed and cable's pulling speed,were deduced to control the forming process.

This paper points out the importance of calculating the total wrap angles of corrugated paper around the corrugating rolls and discusses the effect of rooth parameters and the method for calculating the total wrap angles on the wrap angles.

A formula was deuced,which shows the relation between the outlet angle of center line of channel and wrap angle,variant coefficient,if variant Archimedes spiral is assumed the curve of center line of plate plane.

New drawing method for centrifugal impeller distorted blade with adjustable wrapping angle;

Post-treated with polydiol reduced the cytotoxicity of glutaraldehyde tanned bovine pericardium;

Experimented study on effect of ethanol postincubation in glutaraldehyde-fixed bovine pericardium;

An experimental study of constructing tissue engineering heart valves: Preparation for acellularization of bovine pericardiums scaffold;