As a new approach of fabricating carbon/carbon composites, forced-flow-thermal gradient chemical vapor infiltration (FCVI) process overcame the limitation of slow diffusion and restricted permeability of the traditional CVI, and can shorten the densification time with uniform infiltration and good properties.

Large-eddy simulation of airflow and particle deposition in a human upper airway model;

Mastering the knowledge of particle deposition in HVAC system ducts may be helpful to model the fate of particles indoors,and could know more about particles mov.

In order to investigate the particle deposition characteristics in the trachea bifurcation,a real three-dimensional geometry of human trachea-bronchi was rebuilt by directly dealing with original CT(computer tomography) scanned respiratory tract images using image recognition technology.