Results 21 to 30 of about 1,225,281 (203)
The behaviour of free-flowing granular intruders
EPJ Web of Conferences, 2017 Particle shape affects both the quasi-static and dynamic behaviour of granular media. There has been significant research devoted to the flowability of systems of irregularly shaped particles, as well as the flow of grains around fixed intruders, however
Wyburn Edward +3 more
doaj +1 more source
Viruses, 2022 Little is understood about the impact of nebulisation on the viability of SARS-CoV-2. In this study, a range of nebulisers with differing methods of aerosol generation were evaluated to determine SARS-CoV-2 viability following aerosolization. The aerosol
Susan Paton +7 more
doaj +1 more source
Atmospheric tar balls: Particles from biomass and biofuel burning [PDF]
, 2004 "Tar balls'' are amorphous, carbonaceous spherules that occur in the tropospheric aerosol as a result of biomass and biofuel burning. They form a distinct group of particles with diameters typically between 30 and 500 nm and readily identifiable with ...
Jia Li +8 more
core +1 more source
How Is Indoor Air Quality during Sleep? A Review of Field Studies
Atmosphere, 2021 This review aimed to provide an overview of the characterisation of indoor air quality (IAQ) during the sleeping period, based only on real life conditions’ studies where, at least, one air pollutant was considered.
Nuno Canha +3 more
doaj +1 more source
Atmosphere, 2021 The emergence of new super-insulated buildings to reduce energy consumption can lead to a degradation of the indoor air quality. While some studies were carried out to assess the air quality in these super-insulated buildings, they were usually focused ...
Céline Liaud +2 more
doaj +1 more source
Experimental study of shear rate dependence in perpetually sheared granular matter
EPJ Web of Conferences, 2017 We study the shear behaviour of various granular materials by conducting novel perpetual simple shear experiments over four orders of magnitude of relatively low shear rates. The newly developed experimental apparatus employed is called “3D Stadium Shear
Liu Sophie Yang +4 more
doaj +1 more source
Sensors, 2022 Large quantities of real-time particle data are becoming available from low-cost particle monitors. However, it is crucial to determine the quality of these measurements. The largest network of monitors in the United States is maintained by the PurpleAir
Lance Wallace +2 more
doaj +1 more source
Off-axis transmission holographic system for recording aquatic particles [PDF]
, 1996 We describe a holographic system for recording particles suspended in water. The hologram plate is located in air, separated from the test tank by an air/glass/water boundary. The holographic emulsion is therefore unaffected by adverse aquatic conditions
Lampitt, RS +4 more
core +4 more sources
EPJ Web of Conferences, 2017 Dense granular flows exhibit fascinating kinematic patterns characterised by strong fluctuations in grain velocities. In this paper, we analyse these fluctuations and discuss their possible role on macroscopic properties such as effective viscosity, non ...
Rognon Pierre +3 more
doaj +1 more source
Atmosphere, 2021 Quantitative chemical analysis of airborne particulate matter (PM) is vital for the understanding of health effects in indoor and outdoor environments, as well as for enforcing EU air quality regulations.
Stefan Seeger +13 more
doaj +1 more source