Abstract: Characterizing the coal particle size distribution is an effective means to reduce potential safety hazards in smart mine construction for disaster prevention and security management. Aiming ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Caroline Mullen Caroline Mullen is a writer focused on cleaning and organizing ...

Abstract: Air condition is influenced by the amount of pollution that occurs in an area such as particle matter, ozone, nitrogen oxide, carbon dioxide, and sulfur dioxide. These pollutants have ...

An “intense” Saharan dust plume is to sweep into Europe this week as sand from North Africa is blown into the Iberian peninsula and western Mediterranean. Colourful sunrises and sunsets, hazy skies, ...