Results 31 to 40 of about 253,138 (310)
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
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
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
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
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
South-hemispheric marine aerosol Hg and S isotope compositions reveal different oxidation pathways
National Science Open, 2022 Particle-bound mercury (PBM) records the oxidation of elemental mercury, of which the main oxidation pathways (Br∙/Cl∙/OH∙/O3) remain unclear, especially in the Southern Hemisphere. Here, we present latitudinal covariations of Hg and S-isotopic anomalies
AuYang David +11 more
doaj +1 more source
Airborne bacterial populations above desert soils of the McMurdo Dry Valleys, Antarctica [PDF]
, 2014 Bacteria are assumed to disperse widely via aerosolized transport due to their small size and resilience. The question of microbial endemicity in isolated populations is directly related to the level of airborne exogenous inputs, yet this has proven hard
Bottos, Eric M. +4 more
core +2 more sources
Impact on solar radiation parameters in India during COVID-19 lockdown: a case study
International Journal of Sustainable Energy, 2021 The current research objective is to explore changes in solar radiation variables across the Indian region during the lock-down period. Global Horizontal Irradiance (GHI), Direct Normal Irradiance (DNI) and Diffuse Horizontal Irradiance (DHI) were ...
S. M. Revathy +6 more
doaj +1 more source
Synoptic Situation of 28-31 October 2017 Severe Dust Storm over Iraq
Al-Mustansiriyah Journal of Science, 2021 The phenomenon of dust storms occurs in areas that are characterized by drought, and lack of rainfalls. There are many such areas around the world, including the Middle East in general and large parts of Iraq in particular.
Husam T. Majeed, Hawraa Majid Qasim
doaj +1 more source
Nitric acid scavenging by mineral and biomass burning aerosols [PDF]
, 1998 The abundance of gas phase nitric acid in the upper troposphere is overestimated by global chemistry-transport models, especially during the spring and summer seasons.
Chatfield, R B +8 more
core +2 more sources