About: Characterization of expiration air jets and droplet size distributions immediately at the mouth opening

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About: Characterization of expiration air jets and droplet size distributions immediately at the mouth opening Goto Sponge NotDistinct Permalink

An Entity of Type : schema:ScholarlyArticle, within Data Space : wasabi.inria.fr associated with source document(s)

Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
has title	Characterization of expiration air jets and droplet size distributions immediately at the mouth opening
Creator	Hargreaves, M Ristovski, Z Li, Y Wan, M Chao, C Corbett, S Johnson, G Katoshevski, D Mengersen, K Morawska, L Xie, X
topic	covid:6b5633a1e5a85e5a3e6bc5cf328ac72160a2b17d#this
Source	Elsevier; Medline; PMC
abstract	Abstract Size distributions of expiratory droplets expelled during coughing and speaking and the velocities of the expiration air jets of healthy volunteers were measured. Droplet size was measured using the interferometric Mie imaging (IMI) technique while the particle image velocimetry (PIV) technique was used for measuring air velocity. These techniques allowed measurements in close proximity to the mouth and avoided air sampling losses. The average expiration air velocity was 11.7m/s for coughing and 3.9m/s for speaking. Under the experimental setting, evaporation and condensation effects had negligible impact on the measured droplet size. The geometric mean diameter of droplets from coughing was 13.5μm and it was 16.0μm for speaking (counting 1–100). The estimated total number of droplets expelled ranged from 947 to 2085 per cough and 112–6720 for speaking. The estimated droplet concentrations for coughing ranged from 2.4 to 5.2cm−3 per cough and 0.004–0.223cm−3 for speaking.
has issue date	2009-02-28(xsd:dateTime)
bibo:doi	10.1016/j.jaerosci.2008.10.003
bibo:pmid	32287373
has license	els-covid
sha1sum (hex)	6b5633a1e5a85e5a3e6bc5cf328ac72160a2b17d
schema:url	https://doi.org/10.1016/j.jaerosci.2008.10.003
resource representing a document's title	Characterization of expiration air jets and droplet size distributions immediately at the mouth opening
has PubMed Central identifier	PMC7126899
has PubMed identifier	32287373
schema:publication	Journal of Aerosol Science
resource representing a document's body	covid:6b5633a1e5a85e5a3e6bc5cf328ac72160a2b17d#body_text
is http://vocab.deri.ie/void#inDataset of	https://covidontheweb.inria.fr:4443/about/id/http/ns.inria.fr/covid19/6b5633a1e5a85e5a3e6bc5cf328ac72160a2b17d
is schema:about of	named entity 'The' named entity 'droplet' named entity 'IMMEDIATELY' named entity 'AIR' named entity 'DROPLET' named entity 'DISTRIBUTIONS' named entity 'TOTAL NUMBER' named entity 'HEALTHY VOLUNTEERS' named entity '100%' named entity 'CLOSE' named entity 'CHARACTERIZATION' named entity 'DROPLET' named entity '004' named entity 'IMPACT' named entity 'EVAPORATION' named entity 'NUMBER OF' named entity 'ESTIMATED' named entity 'PROXIMITY' named entity 'EXPERIMENTAL SETTING' named entity 'MEAN DIAMETER' named entity 'COUGH' named entity 'USING' named entity '3.9' named entity 'AIR' named entity 'SPEAKING' named entity 'GEOMETRIC MEAN' named entity 'JETS' named entity 'MOUTH OPENING' named entity 'CONDENSATION' named entity 'AVERAGE' named entity 'EXPIRATION' named entity 'SIZE' named entity '11.7' named entity 'EXPIRATION' named entity 'THESE' named entity 'TECHNIQUES' named entity '112' named entity 'VELOCITY' named entity 'TECHNIQUE' named entity 'COUGHING' named entity '5.2' named entity 'IMAGING' named entity 'MEASUREMENTS' named entity '13.5' named entity 'DISTRIBUTIONS' named entity 'ALLOWED' named entity 'PARTICLE IMAGE VELOCIMETRY' named entity 'MOUTH' named entity 'SAMPLING' named entity 'MEASURED' named entity '923' named entity '2.4' named entity 'USED' named entity 'CONCENTRATIONS' named entity 'NEGLIGIBLE' named entity 'MEASURING' named entity 'SIZE' named entity 'EFFECTS' named entity 'JETS' named entity 'EXPIRATORY' named entity 'VELOCITIES' covid:arg/6b5633a1e5a85e5a3e6bc5cf328ac72160a2b17d named entity 'droplets' named entity 'estimated' named entity 'cough' named entity 'asthma' named entity 'air resistance' named entity 'evaporation' named entity 'water vapor'

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