Experimental and Numerical Study on Thermal Conductivity of Proton Exchange Membrane.

In this paper, the thermal conductivity of dry Nafion 117 is measured by Hot Disk TPS2500 and a molecular dynamics calculation model for the proton exchange membrane is constructed by Materials Studio (MS) software platform to study its thermal conductivity. Cell structures of different water content of Nafion membrane at 300 K and 330 K are obtained, respectively. It is found that at the same temperature the predicted thermal conductivity of PEM increases with the water content, and at the same water content the predicted thermal conductivity decreases with the temperature.

Enhancement of the immune response and protection against Vibrio parahaemolyticus by indigenous probiotic Bacillus strains in mud crab (Scylla paramamosain).

In a previous study, bacterial communities of the intestine in three populations of crabs (wild crabs, pond-raised healthy crabs and diseased crabs) were probed by culture-independent methods. In this study, we examined the intestinal communities of the crabs by bacterial cultivation with a variety of media. A total of 135 bacterial strains were isolated from three populations of mud crabs.