title: Effect of orientation on cyclone penetration characteristics.
mesh_terms: D003031:Coal / Q000032:analysis*; D003032:Coal Mining; D004391:Dust / Q000032:analysis; D004781:Environmental Exposure; D005374:Filtration; D006801:Humans; D009757:Nylons; D009787:Occupational Medicine / Q000295:instrumentation*; D010316:Particle Size
chemical_list: D003031:Coal; D004391:Dust; D009757:Nylons