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View article: Relationship between Exhaled Aerosol and Carbon Dioxide Emission Across Respiratory Activities
Relationship between Exhaled Aerosol and Carbon Dioxide Emission Across Respiratory Activities Open
Respiratory particles produced during vocalized and nonvocalized activities such as breathing, speaking, and singing serve as a major route for respiratory pathogen transmission. This work reports concomitant measurements of exhaled carbon…
View article: Effect of the Addition of Diblock Copolymer Nanoparticles on the Evaporation Kinetics and Final Particle Morphology for Drying Aqueous Aerosol Droplets
Effect of the Addition of Diblock Copolymer Nanoparticles on the Evaporation Kinetics and Final Particle Morphology for Drying Aqueous Aerosol Droplets Open
A deeper understanding of the key processes that determine the particle morphologies generated during aerosol droplet drying is highly desirable for spray-drying of powdered pharmaceuticals and foods, predicting the properties of atmospher…
View article: Comparisons of aerosol generation across different musical instruments and loudness
Comparisons of aerosol generation across different musical instruments and loudness Open
Respiratory aerosols can serve as vectors for disease transmission, and aerosol emission is highly activity-dependent. COVID-19 severely impacted the performing arts due to concerns about disease spread by respiratory aerosols and droplets…
View article: The filtration efficiency of surgical masks for expiratory aerosol and droplets generated by vocal exercises
The filtration efficiency of surgical masks for expiratory aerosol and droplets generated by vocal exercises Open
Transmission of an airborne disease can occur when an individual exhales respiratory particles that contain infectious pathogens. Surgical face masks are often used to reduce the amount of respiratory aerosol emitted into the environment b…
View article: Mitigation of Respirable Aerosol Particles from Speech and Language Therapy Exercises
Mitigation of Respirable Aerosol Particles from Speech and Language Therapy Exercises Open
Voice therapy and assessment causes the release of significant quantities of respirable aerosol. However, simple mitigation strategies can reduce emitted aerosol concentrations to levels comparable to unmasked breathing.
View article: Emission rates, size distributions, and generation mechanism of oral respiratory droplets
Emission rates, size distributions, and generation mechanism of oral respiratory droplets Open
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic has brought renewed attention to respiratory aerosol and droplet generation. While many studies have robustly quantified aerosol (20 µm diameter) generated by a coho…
View article: Computational and experimental study of aerosol dispersion in a ventilated room
Computational and experimental study of aerosol dispersion in a ventilated room Open
For many respiratory diseases, a primary mode of transmission is inhalation via aerosols and droplets. The COVID-19 pandemic has accelerated studies of aerosol dispersion in indoor environments. Most studies of aerosol dispersion present c…
View article: A comparison of respiratory particle emission rates at rest and while speaking or exercising
A comparison of respiratory particle emission rates at rest and while speaking or exercising Open
Background The coronavirus disease-19 (COVID-19) pandemic led to the prohibition of group-based exercise and the cancellation of sporting events. Evaluation of respiratory aerosol emissions is necessary to quantify exercise-related transmi…
View article: Fluorescent Characteristics of respiratory aerosol generated by a variety of speech and therapy activities.
Fluorescent Characteristics of respiratory aerosol generated by a variety of speech and therapy activities. Open
<p>The importance of bio-aerosols across the earth system has been known for some time. With the unfortunate situation arising from the COVID19 pandemic, attention has turned to appropriate detection technologies that could be used t…
View article: Comparing aerosol number and mass exhalation rates from children and adults during breathing, speaking and singing
Comparing aerosol number and mass exhalation rates from children and adults during breathing, speaking and singing Open
Aerosol particles of respirable size are exhaled when individuals breathe, speak and sing and can transmit respiratory pathogens between infected and susceptible individuals. The COVID-19 pandemic has brought into focus the need to improve…
View article: Dynamics and outcomes of binary collisions of equi-diameter picolitre droplets with identical viscosities
Dynamics and outcomes of binary collisions of equi-diameter picolitre droplets with identical viscosities Open
Stroboscopic imaging was used to observe the outcomes of binary collisions of picolitre pure water and 40% w/w aqueous sucrose droplets.
View article: Analytical challenges when sampling and characterising exhaled aerosol
Analytical challenges when sampling and characterising exhaled aerosol Open
Respiratory particles produced by breathing, coughing, and speaking or generated during medical procedures serve as important routes for disease transmission. Characterizing the number of particles generated as well as their size distribut…
View article: Correction to “Accurate Representations of the Microphysical Processes Occurring during the Transport of Exhaled Aerosols and Droplets”
Correction to “Accurate Representations of the Microphysical Processes Occurring during the Transport of Exhaled Aerosols and Droplets” Open
[This corrects the article DOI: 10.1021/acscentsci.0c01522.].
View article: Accurate Representations of the Microphysical Processes Occurring during the Transport of Exhaled Aerosols and Droplets
Accurate Representations of the Microphysical Processes Occurring during the Transport of Exhaled Aerosols and Droplets Open
[Image: see text] Aerosols and droplets from expiratory events play an integral role in transmitting pathogens such as SARS-CoV-2 from an infected individual to a susceptible host. However, there remain significant uncertainties in our und…
View article: High time resolution measurements of droplet evaporation kinetics and particle crystallisation
High time resolution measurements of droplet evaporation kinetics and particle crystallisation Open
High-resolution inflight imaging and measurements of drying droplets enable the evaporation kinetics to be resolved and complex particle crystallisation mechanisms to be observed.
View article: Accurate Representations of the Microphysical Processes Occurring During the Transport of Exhaled Aerosols and Droplets
Accurate Representations of the Microphysical Processes Occurring During the Transport of Exhaled Aerosols and Droplets Open
Aerosols and droplets from expiratory events play an integral role in transmitting pathogens such as SARS-CoV-2 from an infected individual to a susceptible host. However, there remain significant uncertainties in our understanding of the …
View article: Drying Kinetics and Particle Formation from Dilute Colloidal Suspensions in Aerosol Droplets
Drying Kinetics and Particle Formation from Dilute Colloidal Suspensions in Aerosol Droplets Open
Industrial processes such as spray drying of pharmaceutical and food products often involve the drying of aerosol droplets containing colloidal suspensions into powdered microparticles of desired properties. The morphology and surface prop…
View article: Data supporting paper 'Drying Kinetics and Particle Formation from Dilute Colloidal Suspensions in Aerosol Droplets'
Data supporting paper 'Drying Kinetics and Particle Formation from Dilute Colloidal Suspensions in Aerosol Droplets' Open
The hygroscopic properties of aerosol govern the response of aerosol particle size and composition to the relative humidity of the gas phase. The data sets in this project are accumulated from single particle measurements of hygroscopic re…
View article: Optical diagnostics of a single evaporating droplet using fast parallel computing on graphics processing units
Optical diagnostics of a single evaporating droplet using fast parallel computing on graphics processing units Open
We report on the first application of the graphics processing units (GPUs) accelerated computing technology to improve performance of numerical methods used for the optical characterization of evaporating microdroplets. Single microdroplet…