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Electron Anisotropies in Magnetotail Dipolarization Events

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Anisotropic electron distributions can be a major source of free energy for the generation of microinstabilities and waves. Here we investigate specifically anisotropies of the suprathermal electrons associated with dipolarization events in the ...
Joachim Birn   +3 more
doaj   +1 more source

Challenges of Future Accelerators for Particle Physics Research

open access: yesFrontiers in Physics, 2022
For over half a century, high-energy particle accelerators have been a major enabling technology for particle and nuclear physics research as well as sources of X-rays for photon science research in material science, chemistry and biology.
Stephen Gourlay   +2 more
doaj   +1 more source

Measurement report: The influence of traffic and new particle formation on the size distribution of 1–800 nm particles in Helsinki – a street canyon and an urban background station comparison [PDF]

open access: yesAtmospheric Chemistry and Physics, 2021
Most of the anthropogenic air pollution sources are located in urban environments. The contribution of these sources to the population of atmospheric particles in the urban environment is poorly known.
M. Okuljar   +19 more
doaj   +1 more source

On the aspects and function of the enclitic particle 3 [PDF]

open access: yesالمجلة العلمیة لکلیة السیاحة والفنادق جامعة الأسکندریة, 2020
Defining particles in ancient Egyptian language is by no means one of the most crucial tools that helps identifying structure and textual coherence. Only few literature dealt with the occurrences of the enclitic particle A in textual sources.
Rania Younes Merzeban Merzeban
doaj   +1 more source

An emerging aerosol climatology via remote sensing over Metro Manila, the Philippines [PDF]

open access: yesAtmospheric Chemistry and Physics, 2023
Aerosol particles in Southeast Asia are challenging to characterize due to their complex life cycle within the diverse topography and weather of the region.
G. R. Lorenzo   +17 more
doaj   +1 more source

Sources and Eco-toxicological Effects of Ultrafine Particle Matters [PDF]

open access: yesE3S Web of Conferences, 2019
Environmental air pollution has become an important threat to human health. As one of the major air pollutants, atmospheric particulates have received attention widely.
Huimei SHAN   +5 more
doaj   +1 more source

Robust radioactive sources research method using possibility particle filter

open access: yesAIP Advances, 2021
Of growing concern for the security of many nations are numerous incidents of lost or stolen radioactive sources or materials. The detection of and search for these abnormal radioactive sources plays an important role in monitoring nuclear safety and ...
Peng Xu   +4 more
doaj   +1 more source

Collective geographical ecoregions and precursor sources driving Arctic new particle formation [PDF]

open access: yesAtmospheric Chemistry and Physics, 2023
The Arctic is a rapidly changing ecosystem, with complex ice–ocean–atmosphere feedbacks. An important process is new particle formation (NPF), from gas-phase precursors, which provides a climate forcing effect.
J. Brean   +13 more
doaj   +1 more source

Multi-electron beam generation using co-propagating, parallel laser beams

open access: yesNew Journal of Physics, 2018
High intensity short pulse laser plasma interaction experiments were performed to investigate laser wakefield acceleration (LWFA) in the ‘bubble’ regime. Using a specially designed phase plate, two high intensity laser focal spots were generated adjacent
J Elle   +9 more
doaj   +1 more source

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