These new lean bars don’t stand up to scrutiny. The MTA replaced benches with new leaning bars at a bustling lower Manhattan subway station that were widely panned by straphangers as ...

State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, People’s Republic of China Beijing Key Laboratory of Process Fluid Filtration and Separation, Beijing ...

Particles of any substances that are less than 10 or 2.5 micrometres diameter. Particles in this size range make up a large proportion of dust that can be drawn deep into the lungs. Larger particles ...