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 …

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 …