The way of define the fundamental parameters of circular moulds pellet machine;

Research progress of the polymer/inorganic particle composite proton exchange membranes;

In order to decrease the cost of perfluorinated proton-exchange membrane,non-fluorinated proton-exchange membrane with low cost and excellent properties were prepared;In order to solving the problem that proton conductivity of proton-exchange membrane decreases when the temperature is higher than 100℃,polymer/inorganic particle composite membrane were synthesized.

Under the objective statistical conditions of grain filling ratio and grading curve for grain size,we propose an improved two-step modeling procedure to effectively fill a 2D or 3D non-regular solid body with a mass of random grains.

Study on the producing technology and the shaped equipment of the particle organism organic fertilizer;

Effects of long-term fertilization on particulate organic carbon and mineral organic carbon of the paddy soil;

The sources, seasonal variation and transported fluxes of the riverine particulate organic carbon of the Zengjiang River, Southern China;

The water samples of the surface layer sampled in the lower Yangtze River from June 2003 to July 2005 were used for determination of dissolved organic carbon (DOC) and particulate organic carbon (POC).