نتایج جستجو برای: airborne particles
تعداد نتایج: 176432 فیلتر نتایج به سال:
Abstract Ragweed pollen is a prevalent allergen in late summer and autumn, worsening seasonal allergic rhinitis asthma symptoms. In the atmosphere, can osmotically rupture to produce sub-pollen particles (SPP). Because of their smaller size, SPP penetrate deeper into respiratory tract than intact grains may trigger severe cases asthma. Here we characterize airborne forming from rupturing giant ...
Knowledge of the airborne nature of respiratory disease transmission owes much to the pioneering experiments of Wells and Riley over half a century ago. However, the mechanical, physiological, and immunopathological processes which drive the production of infectious aerosols by a diseased host remain poorly understood. Similarly, very little is known about the specific physiological, metabolic ...
A Mie backscattering model for spherical particles with off-center inclusion has been developed and tested. The program is capable of dealing with size parameter values up to approximately 1000, thus allowing one to simulate the optical behavior of a large variety of atmospheric aerosols, as well as cloud and precipitation particles. On the basis of this model, we simulated the optical properti...
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