Results 31 to 40 of about 20,896 (247)

Effects of intermittent aerosol forcing on the stratocumulus-to-cumulus transition [PDF]

Atmospheric Chemistry and Physics
We explore the role of intermittent aerosol forcing (e.g., injections associated with marine cloud brightening) in the stratocumulus-to-cumulus transition (SCT).
P. Prabhakaran, P. Prabhakaran, F. Hoffmann, G. Feingold   +3 more
doaj   +1 more source

SOA from limonene: role of NO₃ in its generation and degradation [PDF]

Atmospheric Chemistry and Physics, 2011
The formation of organic nitrates and secondary organic aerosol (SOA) were monitored during the NO3 + limonene reaction in the atmosphere simulation chamber SAPHIR at Research Center Jülich.
R. Tillmann, F. Rohrer, A. Mensah, H. Fuchs, H.-P. Dorn, W. P. Dubé, S. S. Brown, T. Brauers, A. W. Rollins, A. Kiendler-Scharr, J. L. Fry, A. Wahner, P. J. Wooldridge, R. C. Cohen   +13 more
doaj   +1 more source

The Potential Environmental and Climate Impacts of Stratospheric Aerosol Injection: A Review

Environmental Science: Atmospheres, 2023
Given the rise in global mean temperature as a direct consequence of increasing levels of greenhouse gases (GHG) in the atmosphere, a variety of climate engineering approaches, including stratospheric aerosol injection (SAI), have been proposed. Often criticized as a distraction from global efforts towards reducing GHG emissions, SAI aims to increase ...
Han N. Huynh, V. Faye McNeill
openaire   +1 more source

Aerosol delivery, but not intramuscular injection, of adenovirus-vectored tuberculosis vaccine induces respiratory-mucosal immunity in humans

JCI Insight, 2022
Background Adenovirus-vectored (Ad-vectored) vaccines are typically administered via i.m. injection to humans and are incapable of inducing respiratory mucosal immunity.
Mangalakumari Jeyanathan, Dominik K. Fritz, Sam Afkhami, Emilio Aguirre, Karen J. Howie, Anna Zganiacz, Anna Dvorkin-Gheva, Michael R. Thompson, Richard F. Silver, Ruth P. Cusack, Brian D. Lichty, Paul M. O’Byrne, Martin Kolb, Maria Fe C. Medina, Myrna B. Dolovich, Imran Satia, Gail M. Gauvreau, Zhou Xing, Fiona Smaill   +18 more
doaj   +1 more source

Uncertainties of SAI efficiency and impacts depending on the complexity of the aerosol microphysical model [PDF]

Atmospheric Chemistry and Physics
Significant differences exist between Earth System Models in simulating the efficiency of stratospheric aerosol injection (SAI) experiments, particularly in terms of aerosol burden, radiative forcing, and impacts, such as tropical lower stratospheric ...
S. Tilmes, D. Visioni, I. Quaglia, Y. Zhu, Y. Zhu, C. G. Bardeen, F. Vitt, P. Yu   +7 more
doaj   +1 more source

Record-breaking aerosol levels explained by smoke injection into the stratosphere

Science, 2021
Smoke alarm Intense, widespread bushfires in Australia injected huge amounts of smoke into the stratosphere in 2020. Hirsch and Koren found that this smoke caused record-breaking levels of aerosols over the Southern Hemisphere, as much as that from a moderate volcanic eruption.
Hirsch, Eitan, Koren, Ilan
openaire   +2 more sources

Unintended consequences of atmospheric injection of sulphate aerosols. [PDF]

, 2010
Most climate scientists believe that climate geoengineering is best considered as a potential complement to the mitigation of CO{sub 2} emissions, rather than as an alternative to it. Strong mitigation could achieve the equivalent of up to -4Wm{sup -2} radiative forcing on the century timescale, relative to a worst case scenario for rising CO{sub 2 ...
Brady, Patrick Vane, Kobos, Peter Holmes, Goldstein, Barry   +2 more
openaire   +2 more sources

Enhancing electrospray ionization efficiency for particle transmission through an aerodynamic lens stack

Journal of Synchrotron Radiation
This work investigates the performance of the electrospray aerosol generator at the European X-ray Free Electron Laser (EuXFEL). This generator is, together with an aerodynamic lens stack that transports the particles into the X-ray interaction vacuum ...
Safi Rafie-Zinedine, Tej Varma Yenupuri, Lena Worbs, Filipe R. N. C. Maia, Michael Heymann, Joachim Schulz, Johan Bielecki   +6 more
doaj   +1 more source

Visualizing aerosol-particle injection for diffractive-imaging experiments

Optics Express, 2016
15 ...
Awel, Salah, Kirian, Richard A., Eckerskorn, Niko, Wiedorn, Max, Horke, Daniel, Rode, Andrei V., Küpper, Jochen, Chapman, Henry N.   +7 more
openaire   +5 more sources

Coaxial helium electrospray for single-particle imaging at X-ray free electron lasers

Journal of Synchrotron Radiation
Single-particle imaging at X-ray free-electron lasers relies on suitable sample injection of nanoscale macromolecules and particles into the gas phase at room temperature.
Safi Rafie-Zinedine, Joachim Schulz, Johan Bielecki, Michael Heymann   +3 more
doaj   +1 more source