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Do Cloth Masks Work? Supercomputer Fugaku Says Yes


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Modeling spray from a cough in and around a cloth face mask.

Japan's Fugaku supercomputer modeled the performance of fabric masks in blocking spray from coughs by the wearer.

Credit: Riken Center for Computational Science

Japan's Riken Institute said the Fugaku supercomputer, recently crowned the world's fastest, developed a model that showed nonwoven fabric masks block virus-laden respiratory droplets more effectively than cotton or polyester masks (although all three types were deemed effective at slowing the spread of the coronavirus).

The system simulated the performance of the three types of fabric masks in blocking the spray of virus-carrying respiratory droplets from coughing by the wearer, demonstrating that all three types stopped at least about 80% of spray.

The team also simulated a virus spreading through a 2,000-seat auditorium, and found little danger of proliferation if visitors are masked and sitting spaced apart.

From Nikkei Asian Review
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Abstracts Copyright © 2020 SmithBucklin, Washington, DC, USA


 

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