When paper money comes into contact with cocaine, the group found, fine particles of the drug become embedded in saw-toothed fibers of cellulose within the paper, while coarser particles fall away.
42.
After taking into account fine particle levels ( PM 2.5 and less ), the association with coarse particles remained but was no longer statistically significant, which means the effect is due to the subsection of fine particles.
43.
When a volcano erupts, large amounts of noxious gases, steam, rock, and ash are released into the atmosphere; fine ash can be transported thousands of miles from the volcano, while high concentrations of coarse particles fall out of the air near the volcano.
44.
Appropriate proportion of these two ingredient must be used with respect to the live performance of the broilers . compared the performance of non-pelleted feed to pellet with fine particles and found that the addition of coarse particle improved feed conversion and body weight.
45.
The largest US study on acute health effects of coarse particle pollution between 2.5 and 10 micrometers in diameter . was published 2008 and found an association with hospital admissions for cardiovascular diseases but no evidence of an association with the number of hospital admissions for respiratory diseases.
46.
To support rapid combustion, the dust must consist of very small particles with a high powders with particles less than about 500 micrometres in diameter, but finer dust will present a much greater hazard than coarse particles by virtue of the larger total surface area of all the particles.
47.
The coarse particles in the exhaust gas settle in the " dust catcher " and are dumped into a railroad car or truck for disposal, while the gas itself flows through a venturi scrubber and / or electrostatic precipitators and a gas cooler to reduce the temperature of the cleaned gas.
