Results 21 to 30 of about 627,250 (388)
IEEE Access, 2019 Particulate matter (PM) is one of the most critical air pollutants, and various instruments have been developed to measure PM mass concentration. Of these, quartz crystal microbalance (QCM) based instruments have received much attention.
Nhan Dinh Ngo +3 more
doaj +1 more source
Biomass burning aerosols in most climate models are too absorbing
Nature Communications, 2021 Uncertainty in the representation of biomass burning (BB) aerosol composition and optical properties in climate models contributes to a range in modeled aerosol effects on incoming solar radiation.
Hunter Brown +20 more
semanticscholar +1 more source
Constraints on climate forcing by sulphate aerosols from seasonal changes in Earth's spin [PDF]
, 2014 Angular momentum exchanges between atmosphere and solid Earth are strongly modulated by variations in global atmospheric circulation. Geodetically determined length-of-day (LOD) fluctuations provide an independent resource to investigate climate ...
SOTTILI, Gianluca
core +1 more source
Evaluation of the ability of radiation transmission model and MODIS images to estimate aerosol optical depth [PDF]
مدیریت بیابان, 2018 Aerosols play an important role in the climate system of the atmosphere. These atmospheric particles are directly affected by changing radiation exposure by diffusing and absorbing different wavelengths and indirectly by changing the optical properties ...
Saeid Farhadi +4 more
doaj +1 more source
Optics Express, 2022 We report the dynamics and control of the orientational and positional order of ensembles of gold nanorods suspended in air at standard temperature and pressure using externally applied electric fields, demonstrating an active aerosol. Light filter, valve and gradient responses are shown, establishing active aerosols as a unique type of optical element
Charles A. Rohde +5 more
openaire +3 more sources
Chemical ageing and transformation of diffusivity in semi-solid multi-component organic aerosol particles [PDF]
, 2011 Recent experimental evidence underlines the importance of reduced diffusivity in amorphous semi-solid or glassy atmospheric aerosols. This paper investigates the impact of diffusivity on the ageing of multi-component reactive organic particles ...
Pfrang, Christian +2 more
core +3 more sources
Photophoresis – a Forgotten Force ??
KONA Powder and Particle Journal, 2014 In general a force will act on a particle illuminated by light or other radiation and absorbing part of the flux, and as a consequence a motion will result.
Helmuth Horvath
doaj +1 more source
Using Machine Learning Methods to Identify Particle Types from Doppler Lidar Measurements in Iceland
Remote Sensing, 2021 Doppler lidars are used worldwide for wind monitoring and recently also for the detection of aerosols. Automatic algorithms that classify the lidar signals retrieved from lidar measurements are very useful for the users.
Shu Yang +4 more
doaj +1 more source
Droplets and Aerosols in the Transmission of SARS-CoV-2
New England Journal of Medicine, 2020 Aerosols and Transmission of SARS-CoV-2 With reference to a letter about the use of laser light scattering to visualize droplets that emanate during speech, this author describes the nature of aero...
M. Meselson
semanticscholar +1 more source
Estimating seasonal variations in cloud droplet number concentration over the boreal forest from satellite observations [PDF]
, 2011 Seasonal variations in cloud droplet number concentration (NCD) in low-level stratiform clouds over the boreal forest are estimated from MODIS observations of cloud optical and microphysical properties, using a sub-adiabatic cloud model to interpret ...
Ganzeveld, L.N. +5 more
core +3 more sources