Tác giả: Prabir Kumar Sarker

Fly ash is a by-product of the combustion of coal and other waste materials. In recent years, there has been intensive research on fly ash because of the increasing demand for the recycling of indust …

Fossil records indicate the Neotropical Dry Forests had a more continuous distribution in the recent geological past, especially in the late Pleistocene, more precisely at the end of the last glacial …