The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic has resulted in an unprecedented shutdown social and economic activity, with the cultural sector particularly severely affected. Restrictions on musical performances have arisen from a perception that there is significantly higher risk of aerosol production singing than speaking, based upon high-profile examples clusters ...

A network model has been developed to simulate the flow of emulsions and solid particles through porous media. Particle deposition due to direct interception, as well pore plugging by straining are accounted for in the model. The effects of two important factors-the ratio of particle size to pore size, and the fluid velocity-on particle deposition are also investigated. The strength of the mode...