The idea of“zang-organs qi correspond to nature rhythms”of Huangdi Neijing study human rhythms.

This article clarifies the concepts of yin qi,meridian qi and zang qi in Internal Classic and argues that yin qi is a part of meridian qi,yin qi is similar to zang qi in physiology but differs from zang qi.

) A air-flow and time-delay method for the simultaneous measurement of (radon) and thoron reference concentrations in thoron chamber was developed in Radon Laboratory of Nanhua University.

The dynamic model during parachute inflation is based on the inflation time method,the numerical experimentation is designed by orthogonal experiment approach for analyzing the influence and sensitivity of 21 parameters such as initial conditions,recovery object parameters,pilot parameters,main parachute parameters and environment conditions etc.