Based on the analysis of data on temperatures and moisture of soils in the active layer at four different permafrost sites in the source areas of the Yellow Riv
Coral reef-like PANI nanotubes composed of nanopaticles were successfully synthesized by a reactive template of manganese oxide.The structure was characterized
Last weekend I went to the river for fishing with my cousin.It was a small river.We sat on the river beach and waited for the fish.Hu Dong is two years older th